2 * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
4 * Copyright (c) 2004-2007 Fabrice Bellard
5 * Copyright (c) 2007 Jocelyn Mayer
6 * Copyright (c) 2010 David Gibson, IBM Corporation.
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27 #include "qemu/osdep.h"
28 #include "qemu-common.h"
29 #include "qapi/error.h"
30 #include "qapi/visitor.h"
31 #include "sysemu/sysemu.h"
32 #include "sysemu/hostmem.h"
33 #include "sysemu/numa.h"
34 #include "sysemu/qtest.h"
35 #include "sysemu/reset.h"
36 #include "sysemu/runstate.h"
38 #include "hw/fw-path-provider.h"
41 #include "sysemu/device_tree.h"
42 #include "sysemu/cpus.h"
43 #include "sysemu/hw_accel.h"
45 #include "migration/misc.h"
46 #include "migration/qemu-file-types.h"
47 #include "migration/global_state.h"
48 #include "migration/register.h"
49 #include "mmu-hash64.h"
50 #include "mmu-book3s-v3.h"
51 #include "cpu-models.h"
52 #include "hw/core/cpu.h"
54 #include "hw/boards.h"
55 #include "hw/ppc/ppc.h"
56 #include "hw/loader.h"
58 #include "hw/ppc/fdt.h"
59 #include "hw/ppc/spapr.h"
60 #include "hw/ppc/spapr_vio.h"
61 #include "hw/qdev-properties.h"
62 #include "hw/pci-host/spapr.h"
63 #include "hw/pci/msi.h"
65 #include "hw/pci/pci.h"
66 #include "hw/scsi/scsi.h"
67 #include "hw/virtio/virtio-scsi.h"
68 #include "hw/virtio/vhost-scsi-common.h"
70 #include "exec/address-spaces.h"
71 #include "exec/ram_addr.h"
73 #include "qemu/config-file.h"
74 #include "qemu/error-report.h"
77 #include "hw/intc/intc.h"
79 #include "qemu/cutils.h"
80 #include "hw/ppc/spapr_cpu_core.h"
81 #include "hw/mem/memory-device.h"
82 #include "hw/ppc/spapr_tpm_proxy.h"
84 #include "monitor/monitor.h"
88 /* SLOF memory layout:
90 * SLOF raw image loaded at 0, copies its romfs right below the flat
91 * device-tree, then position SLOF itself 31M below that
93 * So we set FW_OVERHEAD to 40MB which should account for all of that
96 * We load our kernel at 4M, leaving space for SLOF initial image
98 #define FDT_MAX_SIZE 0x100000
99 #define RTAS_MAX_ADDR 0x80000000 /* RTAS must stay below that */
100 #define FW_MAX_SIZE 0x400000
101 #define FW_FILE_NAME "slof.bin"
102 #define FW_OVERHEAD 0x2800000
103 #define KERNEL_LOAD_ADDR FW_MAX_SIZE
105 #define MIN_RMA_SLOF 128UL
107 #define PHANDLE_INTC 0x00001111
109 /* These two functions implement the VCPU id numbering: one to compute them
110 * all and one to identify thread 0 of a VCORE. Any change to the first one
111 * is likely to have an impact on the second one, so let's keep them close.
113 static int spapr_vcpu_id(SpaprMachineState
*spapr
, int cpu_index
)
115 MachineState
*ms
= MACHINE(spapr
);
116 unsigned int smp_threads
= ms
->smp
.threads
;
120 (cpu_index
/ smp_threads
) * spapr
->vsmt
+ cpu_index
% smp_threads
;
122 static bool spapr_is_thread0_in_vcore(SpaprMachineState
*spapr
,
126 return spapr_get_vcpu_id(cpu
) % spapr
->vsmt
== 0;
129 static bool pre_2_10_vmstate_dummy_icp_needed(void *opaque
)
131 /* Dummy entries correspond to unused ICPState objects in older QEMUs,
132 * and newer QEMUs don't even have them. In both cases, we don't want
133 * to send anything on the wire.
138 static const VMStateDescription pre_2_10_vmstate_dummy_icp
= {
139 .name
= "icp/server",
141 .minimum_version_id
= 1,
142 .needed
= pre_2_10_vmstate_dummy_icp_needed
,
143 .fields
= (VMStateField
[]) {
144 VMSTATE_UNUSED(4), /* uint32_t xirr */
145 VMSTATE_UNUSED(1), /* uint8_t pending_priority */
146 VMSTATE_UNUSED(1), /* uint8_t mfrr */
147 VMSTATE_END_OF_LIST()
151 static void pre_2_10_vmstate_register_dummy_icp(int i
)
153 vmstate_register(NULL
, i
, &pre_2_10_vmstate_dummy_icp
,
154 (void *)(uintptr_t) i
);
157 static void pre_2_10_vmstate_unregister_dummy_icp(int i
)
159 vmstate_unregister(NULL
, &pre_2_10_vmstate_dummy_icp
,
160 (void *)(uintptr_t) i
);
163 int spapr_max_server_number(SpaprMachineState
*spapr
)
165 MachineState
*ms
= MACHINE(spapr
);
168 return DIV_ROUND_UP(ms
->smp
.max_cpus
* spapr
->vsmt
, ms
->smp
.threads
);
171 static int spapr_fixup_cpu_smt_dt(void *fdt
, int offset
, PowerPCCPU
*cpu
,
175 uint32_t servers_prop
[smt_threads
];
176 uint32_t gservers_prop
[smt_threads
* 2];
177 int index
= spapr_get_vcpu_id(cpu
);
179 if (cpu
->compat_pvr
) {
180 ret
= fdt_setprop_cell(fdt
, offset
, "cpu-version", cpu
->compat_pvr
);
186 /* Build interrupt servers and gservers properties */
187 for (i
= 0; i
< smt_threads
; i
++) {
188 servers_prop
[i
] = cpu_to_be32(index
+ i
);
189 /* Hack, direct the group queues back to cpu 0 */
190 gservers_prop
[i
*2] = cpu_to_be32(index
+ i
);
191 gservers_prop
[i
*2 + 1] = 0;
193 ret
= fdt_setprop(fdt
, offset
, "ibm,ppc-interrupt-server#s",
194 servers_prop
, sizeof(servers_prop
));
198 ret
= fdt_setprop(fdt
, offset
, "ibm,ppc-interrupt-gserver#s",
199 gservers_prop
, sizeof(gservers_prop
));
204 static int spapr_fixup_cpu_numa_dt(void *fdt
, int offset
, PowerPCCPU
*cpu
)
206 int index
= spapr_get_vcpu_id(cpu
);
207 uint32_t associativity
[] = {cpu_to_be32(0x5),
211 cpu_to_be32(cpu
->node_id
),
214 /* Advertise NUMA via ibm,associativity */
215 return fdt_setprop(fdt
, offset
, "ibm,associativity", associativity
,
216 sizeof(associativity
));
219 /* Populate the "ibm,pa-features" property */
220 static void spapr_populate_pa_features(SpaprMachineState
*spapr
,
222 void *fdt
, int offset
)
224 uint8_t pa_features_206
[] = { 6, 0,
225 0xf6, 0x1f, 0xc7, 0x00, 0x80, 0xc0 };
226 uint8_t pa_features_207
[] = { 24, 0,
227 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0,
228 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
229 0x00, 0x00, 0x00, 0x00, 0x80, 0x00,
230 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 };
231 uint8_t pa_features_300
[] = { 66, 0,
232 /* 0: MMU|FPU|SLB|RUN|DABR|NX, 1: fri[nzpm]|DABRX|SPRG3|SLB0|PP110 */
233 /* 2: VPM|DS205|PPR|DS202|DS206, 3: LSD|URG, SSO, 5: LE|CFAR|EB|LSQ */
234 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0, /* 0 - 5 */
236 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, /* 6 - 11 */
238 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, /* 12 - 17 */
239 /* 18: Vec. Scalar, 20: Vec. XOR, 22: HTM */
240 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, /* 18 - 23 */
241 /* 24: Ext. Dec, 26: 64 bit ftrs, 28: PM ftrs */
242 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 24 - 29 */
243 /* 30: MMR, 32: LE atomic, 34: EBB + ext EBB */
244 0x80, 0x00, 0x80, 0x00, 0xC0, 0x00, /* 30 - 35 */
245 /* 36: SPR SO, 38: Copy/Paste, 40: Radix MMU */
246 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 36 - 41 */
247 /* 42: PM, 44: PC RA, 46: SC vec'd */
248 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 42 - 47 */
249 /* 48: SIMD, 50: QP BFP, 52: String */
250 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 48 - 53 */
251 /* 54: DecFP, 56: DecI, 58: SHA */
252 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 54 - 59 */
253 /* 60: NM atomic, 62: RNG */
254 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, /* 60 - 65 */
256 uint8_t *pa_features
= NULL
;
259 if (ppc_check_compat(cpu
, CPU_POWERPC_LOGICAL_2_06
, 0, cpu
->compat_pvr
)) {
260 pa_features
= pa_features_206
;
261 pa_size
= sizeof(pa_features_206
);
263 if (ppc_check_compat(cpu
, CPU_POWERPC_LOGICAL_2_07
, 0, cpu
->compat_pvr
)) {
264 pa_features
= pa_features_207
;
265 pa_size
= sizeof(pa_features_207
);
267 if (ppc_check_compat(cpu
, CPU_POWERPC_LOGICAL_3_00
, 0, cpu
->compat_pvr
)) {
268 pa_features
= pa_features_300
;
269 pa_size
= sizeof(pa_features_300
);
275 if (ppc_hash64_has(cpu
, PPC_HASH64_CI_LARGEPAGE
)) {
277 * Note: we keep CI large pages off by default because a 64K capable
278 * guest provisioned with large pages might otherwise try to map a qemu
279 * framebuffer (or other kind of memory mapped PCI BAR) using 64K pages
280 * even if that qemu runs on a 4k host.
281 * We dd this bit back here if we are confident this is not an issue
283 pa_features
[3] |= 0x20;
285 if ((spapr_get_cap(spapr
, SPAPR_CAP_HTM
) != 0) && pa_size
> 24) {
286 pa_features
[24] |= 0x80; /* Transactional memory support */
288 if (spapr
->cas_pre_isa3_guest
&& pa_size
> 40) {
289 /* Workaround for broken kernels that attempt (guest) radix
290 * mode when they can't handle it, if they see the radix bit set
291 * in pa-features. So hide it from them. */
292 pa_features
[40 + 2] &= ~0x80; /* Radix MMU */
295 _FDT((fdt_setprop(fdt
, offset
, "ibm,pa-features", pa_features
, pa_size
)));
298 static hwaddr
spapr_node0_size(MachineState
*machine
)
300 if (machine
->numa_state
->num_nodes
) {
302 for (i
= 0; i
< machine
->numa_state
->num_nodes
; ++i
) {
303 if (machine
->numa_state
->nodes
[i
].node_mem
) {
304 return MIN(pow2floor(machine
->numa_state
->nodes
[i
].node_mem
),
309 return machine
->ram_size
;
312 static void add_str(GString
*s
, const gchar
*s1
)
314 g_string_append_len(s
, s1
, strlen(s1
) + 1);
317 static int spapr_populate_memory_node(void *fdt
, int nodeid
, hwaddr start
,
320 uint32_t associativity
[] = {
321 cpu_to_be32(0x4), /* length */
322 cpu_to_be32(0x0), cpu_to_be32(0x0),
323 cpu_to_be32(0x0), cpu_to_be32(nodeid
)
326 uint64_t mem_reg_property
[2];
329 mem_reg_property
[0] = cpu_to_be64(start
);
330 mem_reg_property
[1] = cpu_to_be64(size
);
332 sprintf(mem_name
, "memory@%" HWADDR_PRIx
, start
);
333 off
= fdt_add_subnode(fdt
, 0, mem_name
);
335 _FDT((fdt_setprop_string(fdt
, off
, "device_type", "memory")));
336 _FDT((fdt_setprop(fdt
, off
, "reg", mem_reg_property
,
337 sizeof(mem_reg_property
))));
338 _FDT((fdt_setprop(fdt
, off
, "ibm,associativity", associativity
,
339 sizeof(associativity
))));
343 static int spapr_populate_memory(SpaprMachineState
*spapr
, void *fdt
)
345 MachineState
*machine
= MACHINE(spapr
);
346 hwaddr mem_start
, node_size
;
347 int i
, nb_nodes
= machine
->numa_state
->num_nodes
;
348 NodeInfo
*nodes
= machine
->numa_state
->nodes
;
350 for (i
= 0, mem_start
= 0; i
< nb_nodes
; ++i
) {
351 if (!nodes
[i
].node_mem
) {
354 if (mem_start
>= machine
->ram_size
) {
357 node_size
= nodes
[i
].node_mem
;
358 if (node_size
> machine
->ram_size
- mem_start
) {
359 node_size
= machine
->ram_size
- mem_start
;
363 /* spapr_machine_init() checks for rma_size <= node0_size
365 spapr_populate_memory_node(fdt
, i
, 0, spapr
->rma_size
);
366 mem_start
+= spapr
->rma_size
;
367 node_size
-= spapr
->rma_size
;
369 for ( ; node_size
; ) {
370 hwaddr sizetmp
= pow2floor(node_size
);
372 /* mem_start != 0 here */
373 if (ctzl(mem_start
) < ctzl(sizetmp
)) {
374 sizetmp
= 1ULL << ctzl(mem_start
);
377 spapr_populate_memory_node(fdt
, i
, mem_start
, sizetmp
);
378 node_size
-= sizetmp
;
379 mem_start
+= sizetmp
;
386 static void spapr_populate_cpu_dt(CPUState
*cs
, void *fdt
, int offset
,
387 SpaprMachineState
*spapr
)
389 MachineState
*ms
= MACHINE(spapr
);
390 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
391 CPUPPCState
*env
= &cpu
->env
;
392 PowerPCCPUClass
*pcc
= POWERPC_CPU_GET_CLASS(cs
);
393 int index
= spapr_get_vcpu_id(cpu
);
394 uint32_t segs
[] = {cpu_to_be32(28), cpu_to_be32(40),
395 0xffffffff, 0xffffffff};
396 uint32_t tbfreq
= kvm_enabled() ? kvmppc_get_tbfreq()
397 : SPAPR_TIMEBASE_FREQ
;
398 uint32_t cpufreq
= kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;
399 uint32_t page_sizes_prop
[64];
400 size_t page_sizes_prop_size
;
401 unsigned int smp_threads
= ms
->smp
.threads
;
402 uint32_t vcpus_per_socket
= smp_threads
* ms
->smp
.cores
;
403 uint32_t pft_size_prop
[] = {0, cpu_to_be32(spapr
->htab_shift
)};
404 int compat_smt
= MIN(smp_threads
, ppc_compat_max_vthreads(cpu
));
407 uint32_t radix_AP_encodings
[PPC_PAGE_SIZES_MAX_SZ
];
410 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_CPU
, index
);
412 drc_index
= spapr_drc_index(drc
);
413 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,my-drc-index", drc_index
)));
416 _FDT((fdt_setprop_cell(fdt
, offset
, "reg", index
)));
417 _FDT((fdt_setprop_string(fdt
, offset
, "device_type", "cpu")));
419 _FDT((fdt_setprop_cell(fdt
, offset
, "cpu-version", env
->spr
[SPR_PVR
])));
420 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-block-size",
421 env
->dcache_line_size
)));
422 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-line-size",
423 env
->dcache_line_size
)));
424 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-block-size",
425 env
->icache_line_size
)));
426 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-line-size",
427 env
->icache_line_size
)));
429 if (pcc
->l1_dcache_size
) {
430 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-size",
431 pcc
->l1_dcache_size
)));
433 warn_report("Unknown L1 dcache size for cpu");
435 if (pcc
->l1_icache_size
) {
436 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-size",
437 pcc
->l1_icache_size
)));
439 warn_report("Unknown L1 icache size for cpu");
442 _FDT((fdt_setprop_cell(fdt
, offset
, "timebase-frequency", tbfreq
)));
443 _FDT((fdt_setprop_cell(fdt
, offset
, "clock-frequency", cpufreq
)));
444 _FDT((fdt_setprop_cell(fdt
, offset
, "slb-size", cpu
->hash64_opts
->slb_size
)));
445 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,slb-size", cpu
->hash64_opts
->slb_size
)));
446 _FDT((fdt_setprop_string(fdt
, offset
, "status", "okay")));
447 _FDT((fdt_setprop(fdt
, offset
, "64-bit", NULL
, 0)));
449 if (env
->spr_cb
[SPR_PURR
].oea_read
) {
450 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,purr", 1)));
452 if (env
->spr_cb
[SPR_SPURR
].oea_read
) {
453 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,spurr", 1)));
456 if (ppc_hash64_has(cpu
, PPC_HASH64_1TSEG
)) {
457 _FDT((fdt_setprop(fdt
, offset
, "ibm,processor-segment-sizes",
458 segs
, sizeof(segs
))));
461 /* Advertise VSX (vector extensions) if available
462 * 1 == VMX / Altivec available
465 * Only CPUs for which we create core types in spapr_cpu_core.c
466 * are possible, and all of those have VMX */
467 if (spapr_get_cap(spapr
, SPAPR_CAP_VSX
) != 0) {
468 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,vmx", 2)));
470 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,vmx", 1)));
473 /* Advertise DFP (Decimal Floating Point) if available
474 * 0 / no property == no DFP
475 * 1 == DFP available */
476 if (spapr_get_cap(spapr
, SPAPR_CAP_DFP
) != 0) {
477 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,dfp", 1)));
480 page_sizes_prop_size
= ppc_create_page_sizes_prop(cpu
, page_sizes_prop
,
481 sizeof(page_sizes_prop
));
482 if (page_sizes_prop_size
) {
483 _FDT((fdt_setprop(fdt
, offset
, "ibm,segment-page-sizes",
484 page_sizes_prop
, page_sizes_prop_size
)));
487 spapr_populate_pa_features(spapr
, cpu
, fdt
, offset
);
489 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,chip-id",
490 cs
->cpu_index
/ vcpus_per_socket
)));
492 _FDT((fdt_setprop(fdt
, offset
, "ibm,pft-size",
493 pft_size_prop
, sizeof(pft_size_prop
))));
495 if (ms
->numa_state
->num_nodes
> 1) {
496 _FDT(spapr_fixup_cpu_numa_dt(fdt
, offset
, cpu
));
499 _FDT(spapr_fixup_cpu_smt_dt(fdt
, offset
, cpu
, compat_smt
));
501 if (pcc
->radix_page_info
) {
502 for (i
= 0; i
< pcc
->radix_page_info
->count
; i
++) {
503 radix_AP_encodings
[i
] =
504 cpu_to_be32(pcc
->radix_page_info
->entries
[i
]);
506 _FDT((fdt_setprop(fdt
, offset
, "ibm,processor-radix-AP-encodings",
508 pcc
->radix_page_info
->count
*
509 sizeof(radix_AP_encodings
[0]))));
513 * We set this property to let the guest know that it can use the large
514 * decrementer and its width in bits.
516 if (spapr_get_cap(spapr
, SPAPR_CAP_LARGE_DECREMENTER
) != SPAPR_CAP_OFF
)
517 _FDT((fdt_setprop_u32(fdt
, offset
, "ibm,dec-bits",
518 pcc
->lrg_decr_bits
)));
521 static void spapr_populate_cpus_dt_node(void *fdt
, SpaprMachineState
*spapr
)
530 cpus_offset
= fdt_add_subnode(fdt
, 0, "cpus");
532 _FDT((fdt_setprop_cell(fdt
, cpus_offset
, "#address-cells", 0x1)));
533 _FDT((fdt_setprop_cell(fdt
, cpus_offset
, "#size-cells", 0x0)));
536 * We walk the CPUs in reverse order to ensure that CPU DT nodes
537 * created by fdt_add_subnode() end up in the right order in FDT
538 * for the guest kernel the enumerate the CPUs correctly.
540 * The CPU list cannot be traversed in reverse order, so we need
546 rev
= g_renew(CPUState
*, rev
, n_cpus
+ 1);
550 for (i
= n_cpus
- 1; i
>= 0; i
--) {
551 CPUState
*cs
= rev
[i
];
552 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
553 int index
= spapr_get_vcpu_id(cpu
);
554 DeviceClass
*dc
= DEVICE_GET_CLASS(cs
);
557 if (!spapr_is_thread0_in_vcore(spapr
, cpu
)) {
561 nodename
= g_strdup_printf("%s@%x", dc
->fw_name
, index
);
562 offset
= fdt_add_subnode(fdt
, cpus_offset
, nodename
);
565 spapr_populate_cpu_dt(cs
, fdt
, offset
, spapr
);
571 static int spapr_rng_populate_dt(void *fdt
)
576 node
= qemu_fdt_add_subnode(fdt
, "/ibm,platform-facilities");
580 ret
= fdt_setprop_string(fdt
, node
, "device_type",
581 "ibm,platform-facilities");
582 ret
|= fdt_setprop_cell(fdt
, node
, "#address-cells", 0x1);
583 ret
|= fdt_setprop_cell(fdt
, node
, "#size-cells", 0x0);
585 node
= fdt_add_subnode(fdt
, node
, "ibm,random-v1");
589 ret
|= fdt_setprop_string(fdt
, node
, "compatible", "ibm,random");
594 static uint32_t spapr_pc_dimm_node(MemoryDeviceInfoList
*list
, ram_addr_t addr
)
596 MemoryDeviceInfoList
*info
;
598 for (info
= list
; info
; info
= info
->next
) {
599 MemoryDeviceInfo
*value
= info
->value
;
601 if (value
&& value
->type
== MEMORY_DEVICE_INFO_KIND_DIMM
) {
602 PCDIMMDeviceInfo
*pcdimm_info
= value
->u
.dimm
.data
;
604 if (addr
>= pcdimm_info
->addr
&&
605 addr
< (pcdimm_info
->addr
+ pcdimm_info
->size
)) {
606 return pcdimm_info
->node
;
614 struct sPAPRDrconfCellV2
{
622 typedef struct DrconfCellQueue
{
623 struct sPAPRDrconfCellV2 cell
;
624 QSIMPLEQ_ENTRY(DrconfCellQueue
) entry
;
627 static DrconfCellQueue
*
628 spapr_get_drconf_cell(uint32_t seq_lmbs
, uint64_t base_addr
,
629 uint32_t drc_index
, uint32_t aa_index
,
632 DrconfCellQueue
*elem
;
634 elem
= g_malloc0(sizeof(*elem
));
635 elem
->cell
.seq_lmbs
= cpu_to_be32(seq_lmbs
);
636 elem
->cell
.base_addr
= cpu_to_be64(base_addr
);
637 elem
->cell
.drc_index
= cpu_to_be32(drc_index
);
638 elem
->cell
.aa_index
= cpu_to_be32(aa_index
);
639 elem
->cell
.flags
= cpu_to_be32(flags
);
644 /* ibm,dynamic-memory-v2 */
645 static int spapr_populate_drmem_v2(SpaprMachineState
*spapr
, void *fdt
,
646 int offset
, MemoryDeviceInfoList
*dimms
)
648 MachineState
*machine
= MACHINE(spapr
);
649 uint8_t *int_buf
, *cur_index
;
651 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
652 uint64_t addr
, cur_addr
, size
;
653 uint32_t nr_boot_lmbs
= (machine
->device_memory
->base
/ lmb_size
);
654 uint64_t mem_end
= machine
->device_memory
->base
+
655 memory_region_size(&machine
->device_memory
->mr
);
656 uint32_t node
, buf_len
, nr_entries
= 0;
658 DrconfCellQueue
*elem
, *next
;
659 MemoryDeviceInfoList
*info
;
660 QSIMPLEQ_HEAD(, DrconfCellQueue
) drconf_queue
661 = QSIMPLEQ_HEAD_INITIALIZER(drconf_queue
);
663 /* Entry to cover RAM and the gap area */
664 elem
= spapr_get_drconf_cell(nr_boot_lmbs
, 0, 0, -1,
665 SPAPR_LMB_FLAGS_RESERVED
|
666 SPAPR_LMB_FLAGS_DRC_INVALID
);
667 QSIMPLEQ_INSERT_TAIL(&drconf_queue
, elem
, entry
);
670 cur_addr
= machine
->device_memory
->base
;
671 for (info
= dimms
; info
; info
= info
->next
) {
672 PCDIMMDeviceInfo
*di
= info
->value
->u
.dimm
.data
;
678 /* Entry for hot-pluggable area */
679 if (cur_addr
< addr
) {
680 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
, cur_addr
/ lmb_size
);
682 elem
= spapr_get_drconf_cell((addr
- cur_addr
) / lmb_size
,
683 cur_addr
, spapr_drc_index(drc
), -1, 0);
684 QSIMPLEQ_INSERT_TAIL(&drconf_queue
, elem
, entry
);
689 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
, addr
/ lmb_size
);
691 elem
= spapr_get_drconf_cell(size
/ lmb_size
, addr
,
692 spapr_drc_index(drc
), node
,
693 SPAPR_LMB_FLAGS_ASSIGNED
);
694 QSIMPLEQ_INSERT_TAIL(&drconf_queue
, elem
, entry
);
696 cur_addr
= addr
+ size
;
699 /* Entry for remaining hotpluggable area */
700 if (cur_addr
< mem_end
) {
701 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
, cur_addr
/ lmb_size
);
703 elem
= spapr_get_drconf_cell((mem_end
- cur_addr
) / lmb_size
,
704 cur_addr
, spapr_drc_index(drc
), -1, 0);
705 QSIMPLEQ_INSERT_TAIL(&drconf_queue
, elem
, entry
);
709 buf_len
= nr_entries
* sizeof(struct sPAPRDrconfCellV2
) + sizeof(uint32_t);
710 int_buf
= cur_index
= g_malloc0(buf_len
);
711 *(uint32_t *)int_buf
= cpu_to_be32(nr_entries
);
712 cur_index
+= sizeof(nr_entries
);
714 QSIMPLEQ_FOREACH_SAFE(elem
, &drconf_queue
, entry
, next
) {
715 memcpy(cur_index
, &elem
->cell
, sizeof(elem
->cell
));
716 cur_index
+= sizeof(elem
->cell
);
717 QSIMPLEQ_REMOVE(&drconf_queue
, elem
, DrconfCellQueue
, entry
);
721 ret
= fdt_setprop(fdt
, offset
, "ibm,dynamic-memory-v2", int_buf
, buf_len
);
729 /* ibm,dynamic-memory */
730 static int spapr_populate_drmem_v1(SpaprMachineState
*spapr
, void *fdt
,
731 int offset
, MemoryDeviceInfoList
*dimms
)
733 MachineState
*machine
= MACHINE(spapr
);
735 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
736 uint32_t device_lmb_start
= machine
->device_memory
->base
/ lmb_size
;
737 uint32_t nr_lmbs
= (machine
->device_memory
->base
+
738 memory_region_size(&machine
->device_memory
->mr
)) /
740 uint32_t *int_buf
, *cur_index
, buf_len
;
743 * Allocate enough buffer size to fit in ibm,dynamic-memory
745 buf_len
= (nr_lmbs
* SPAPR_DR_LMB_LIST_ENTRY_SIZE
+ 1) * sizeof(uint32_t);
746 cur_index
= int_buf
= g_malloc0(buf_len
);
747 int_buf
[0] = cpu_to_be32(nr_lmbs
);
749 for (i
= 0; i
< nr_lmbs
; i
++) {
750 uint64_t addr
= i
* lmb_size
;
751 uint32_t *dynamic_memory
= cur_index
;
753 if (i
>= device_lmb_start
) {
756 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
, i
);
759 dynamic_memory
[0] = cpu_to_be32(addr
>> 32);
760 dynamic_memory
[1] = cpu_to_be32(addr
& 0xffffffff);
761 dynamic_memory
[2] = cpu_to_be32(spapr_drc_index(drc
));
762 dynamic_memory
[3] = cpu_to_be32(0); /* reserved */
763 dynamic_memory
[4] = cpu_to_be32(spapr_pc_dimm_node(dimms
, addr
));
764 if (memory_region_present(get_system_memory(), addr
)) {
765 dynamic_memory
[5] = cpu_to_be32(SPAPR_LMB_FLAGS_ASSIGNED
);
767 dynamic_memory
[5] = cpu_to_be32(0);
771 * LMB information for RMA, boot time RAM and gap b/n RAM and
772 * device memory region -- all these are marked as reserved
773 * and as having no valid DRC.
775 dynamic_memory
[0] = cpu_to_be32(addr
>> 32);
776 dynamic_memory
[1] = cpu_to_be32(addr
& 0xffffffff);
777 dynamic_memory
[2] = cpu_to_be32(0);
778 dynamic_memory
[3] = cpu_to_be32(0); /* reserved */
779 dynamic_memory
[4] = cpu_to_be32(-1);
780 dynamic_memory
[5] = cpu_to_be32(SPAPR_LMB_FLAGS_RESERVED
|
781 SPAPR_LMB_FLAGS_DRC_INVALID
);
784 cur_index
+= SPAPR_DR_LMB_LIST_ENTRY_SIZE
;
786 ret
= fdt_setprop(fdt
, offset
, "ibm,dynamic-memory", int_buf
, buf_len
);
795 * Adds ibm,dynamic-reconfiguration-memory node.
796 * Refer to docs/specs/ppc-spapr-hotplug.txt for the documentation
797 * of this device tree node.
799 static int spapr_populate_drconf_memory(SpaprMachineState
*spapr
, void *fdt
)
801 MachineState
*machine
= MACHINE(spapr
);
802 int nb_numa_nodes
= machine
->numa_state
->num_nodes
;
804 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
805 uint32_t prop_lmb_size
[] = {0, cpu_to_be32(lmb_size
)};
806 uint32_t *int_buf
, *cur_index
, buf_len
;
807 int nr_nodes
= nb_numa_nodes
? nb_numa_nodes
: 1;
808 MemoryDeviceInfoList
*dimms
= NULL
;
811 * Don't create the node if there is no device memory
813 if (machine
->ram_size
== machine
->maxram_size
) {
817 offset
= fdt_add_subnode(fdt
, 0, "ibm,dynamic-reconfiguration-memory");
819 ret
= fdt_setprop(fdt
, offset
, "ibm,lmb-size", prop_lmb_size
,
820 sizeof(prop_lmb_size
));
825 ret
= fdt_setprop_cell(fdt
, offset
, "ibm,memory-flags-mask", 0xff);
830 ret
= fdt_setprop_cell(fdt
, offset
, "ibm,memory-preservation-time", 0x0);
835 /* ibm,dynamic-memory or ibm,dynamic-memory-v2 */
836 dimms
= qmp_memory_device_list();
837 if (spapr_ovec_test(spapr
->ov5_cas
, OV5_DRMEM_V2
)) {
838 ret
= spapr_populate_drmem_v2(spapr
, fdt
, offset
, dimms
);
840 ret
= spapr_populate_drmem_v1(spapr
, fdt
, offset
, dimms
);
842 qapi_free_MemoryDeviceInfoList(dimms
);
848 /* ibm,associativity-lookup-arrays */
849 buf_len
= (nr_nodes
* 4 + 2) * sizeof(uint32_t);
850 cur_index
= int_buf
= g_malloc0(buf_len
);
851 int_buf
[0] = cpu_to_be32(nr_nodes
);
852 int_buf
[1] = cpu_to_be32(4); /* Number of entries per associativity list */
854 for (i
= 0; i
< nr_nodes
; i
++) {
855 uint32_t associativity
[] = {
861 memcpy(cur_index
, associativity
, sizeof(associativity
));
864 ret
= fdt_setprop(fdt
, offset
, "ibm,associativity-lookup-arrays", int_buf
,
865 (cur_index
- int_buf
) * sizeof(uint32_t));
871 static int spapr_dt_cas_updates(SpaprMachineState
*spapr
, void *fdt
,
872 SpaprOptionVector
*ov5_updates
)
874 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
877 /* Generate ibm,dynamic-reconfiguration-memory node if required */
878 if (spapr_ovec_test(ov5_updates
, OV5_DRCONF_MEMORY
)) {
879 g_assert(smc
->dr_lmb_enabled
);
880 ret
= spapr_populate_drconf_memory(spapr
, fdt
);
886 offset
= fdt_path_offset(fdt
, "/chosen");
888 offset
= fdt_add_subnode(fdt
, 0, "chosen");
893 ret
= spapr_ovec_populate_dt(fdt
, offset
, spapr
->ov5_cas
,
894 "ibm,architecture-vec-5");
900 static bool spapr_hotplugged_dev_before_cas(void)
902 Object
*drc_container
, *obj
;
903 ObjectProperty
*prop
;
904 ObjectPropertyIterator iter
;
906 drc_container
= container_get(object_get_root(), "/dr-connector");
907 object_property_iter_init(&iter
, drc_container
);
908 while ((prop
= object_property_iter_next(&iter
))) {
909 if (!strstart(prop
->type
, "link<", NULL
)) {
912 obj
= object_property_get_link(drc_container
, prop
->name
, NULL
);
913 if (spapr_drc_needed(obj
)) {
920 static void *spapr_build_fdt(SpaprMachineState
*spapr
, bool reset
);
922 int spapr_h_cas_compose_response(SpaprMachineState
*spapr
,
923 target_ulong addr
, target_ulong size
,
924 SpaprOptionVector
*ov5_updates
)
927 SpaprDeviceTreeUpdateHeader hdr
= { .version_id
= 1 };
929 if (spapr_hotplugged_dev_before_cas()) {
933 if (size
< sizeof(hdr
) || size
> FW_MAX_SIZE
) {
934 error_report("SLOF provided an unexpected CAS buffer size "
935 TARGET_FMT_lu
" (min: %zu, max: %u)",
936 size
, sizeof(hdr
), FW_MAX_SIZE
);
942 fdt
= spapr_build_fdt(spapr
, false);
943 _FDT((fdt_pack(fdt
)));
945 if (fdt_totalsize(fdt
) + sizeof(hdr
) > size
) {
947 trace_spapr_cas_failed(size
);
951 cpu_physical_memory_write(addr
, &hdr
, sizeof(hdr
));
952 cpu_physical_memory_write(addr
+ sizeof(hdr
), fdt
, fdt_totalsize(fdt
));
953 trace_spapr_cas_continue(fdt_totalsize(fdt
) + sizeof(hdr
));
955 g_free(spapr
->fdt_blob
);
956 spapr
->fdt_size
= fdt_totalsize(fdt
);
957 spapr
->fdt_initial_size
= spapr
->fdt_size
;
958 spapr
->fdt_blob
= fdt
;
963 static void spapr_dt_rtas(SpaprMachineState
*spapr
, void *fdt
)
965 MachineState
*ms
= MACHINE(spapr
);
967 GString
*hypertas
= g_string_sized_new(256);
968 GString
*qemu_hypertas
= g_string_sized_new(256);
969 uint32_t refpoints
[] = { cpu_to_be32(0x4), cpu_to_be32(0x4) };
970 uint64_t max_device_addr
= MACHINE(spapr
)->device_memory
->base
+
971 memory_region_size(&MACHINE(spapr
)->device_memory
->mr
);
972 uint32_t lrdr_capacity
[] = {
973 cpu_to_be32(max_device_addr
>> 32),
974 cpu_to_be32(max_device_addr
& 0xffffffff),
975 0, cpu_to_be32(SPAPR_MEMORY_BLOCK_SIZE
),
976 cpu_to_be32(ms
->smp
.max_cpus
/ ms
->smp
.threads
),
978 uint32_t maxdomain
= cpu_to_be32(spapr
->gpu_numa_id
> 1 ? 1 : 0);
979 uint32_t maxdomains
[] = {
984 cpu_to_be32(spapr
->gpu_numa_id
),
987 _FDT(rtas
= fdt_add_subnode(fdt
, 0, "rtas"));
990 add_str(hypertas
, "hcall-pft");
991 add_str(hypertas
, "hcall-term");
992 add_str(hypertas
, "hcall-dabr");
993 add_str(hypertas
, "hcall-interrupt");
994 add_str(hypertas
, "hcall-tce");
995 add_str(hypertas
, "hcall-vio");
996 add_str(hypertas
, "hcall-splpar");
997 add_str(hypertas
, "hcall-join");
998 add_str(hypertas
, "hcall-bulk");
999 add_str(hypertas
, "hcall-set-mode");
1000 add_str(hypertas
, "hcall-sprg0");
1001 add_str(hypertas
, "hcall-copy");
1002 add_str(hypertas
, "hcall-debug");
1003 add_str(hypertas
, "hcall-vphn");
1004 add_str(qemu_hypertas
, "hcall-memop1");
1006 if (!kvm_enabled() || kvmppc_spapr_use_multitce()) {
1007 add_str(hypertas
, "hcall-multi-tce");
1010 if (spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DISABLED
) {
1011 add_str(hypertas
, "hcall-hpt-resize");
1014 _FDT(fdt_setprop(fdt
, rtas
, "ibm,hypertas-functions",
1015 hypertas
->str
, hypertas
->len
));
1016 g_string_free(hypertas
, TRUE
);
1017 _FDT(fdt_setprop(fdt
, rtas
, "qemu,hypertas-functions",
1018 qemu_hypertas
->str
, qemu_hypertas
->len
));
1019 g_string_free(qemu_hypertas
, TRUE
);
1021 _FDT(fdt_setprop(fdt
, rtas
, "ibm,associativity-reference-points",
1022 refpoints
, sizeof(refpoints
)));
1024 _FDT(fdt_setprop(fdt
, rtas
, "ibm,max-associativity-domains",
1025 maxdomains
, sizeof(maxdomains
)));
1027 _FDT(fdt_setprop_cell(fdt
, rtas
, "rtas-error-log-max",
1028 RTAS_ERROR_LOG_MAX
));
1029 _FDT(fdt_setprop_cell(fdt
, rtas
, "rtas-event-scan-rate",
1030 RTAS_EVENT_SCAN_RATE
));
1032 g_assert(msi_nonbroken
);
1033 _FDT(fdt_setprop(fdt
, rtas
, "ibm,change-msix-capable", NULL
, 0));
1036 * According to PAPR, rtas ibm,os-term does not guarantee a return
1037 * back to the guest cpu.
1039 * While an additional ibm,extended-os-term property indicates
1040 * that rtas call return will always occur. Set this property.
1042 _FDT(fdt_setprop(fdt
, rtas
, "ibm,extended-os-term", NULL
, 0));
1044 _FDT(fdt_setprop(fdt
, rtas
, "ibm,lrdr-capacity",
1045 lrdr_capacity
, sizeof(lrdr_capacity
)));
1047 spapr_dt_rtas_tokens(fdt
, rtas
);
1051 * Prepare ibm,arch-vec-5-platform-support, which indicates the MMU
1052 * and the XIVE features that the guest may request and thus the valid
1053 * values for bytes 23..26 of option vector 5:
1055 static void spapr_dt_ov5_platform_support(SpaprMachineState
*spapr
, void *fdt
,
1058 PowerPCCPU
*first_ppc_cpu
= POWERPC_CPU(first_cpu
);
1061 23, 0x00, /* XICS / XIVE mode */
1062 24, 0x00, /* Hash/Radix, filled in below. */
1063 25, 0x00, /* Hash options: Segment Tables == no, GTSE == no. */
1064 26, 0x40, /* Radix options: GTSE == yes. */
1067 if (spapr
->irq
->xics
&& spapr
->irq
->xive
) {
1068 val
[1] = SPAPR_OV5_XIVE_BOTH
;
1069 } else if (spapr
->irq
->xive
) {
1070 val
[1] = SPAPR_OV5_XIVE_EXPLOIT
;
1072 assert(spapr
->irq
->xics
);
1073 val
[1] = SPAPR_OV5_XIVE_LEGACY
;
1076 if (!ppc_check_compat(first_ppc_cpu
, CPU_POWERPC_LOGICAL_3_00
, 0,
1077 first_ppc_cpu
->compat_pvr
)) {
1079 * If we're in a pre POWER9 compat mode then the guest should
1080 * do hash and use the legacy interrupt mode
1082 val
[1] = SPAPR_OV5_XIVE_LEGACY
; /* XICS */
1083 val
[3] = 0x00; /* Hash */
1084 } else if (kvm_enabled()) {
1085 if (kvmppc_has_cap_mmu_radix() && kvmppc_has_cap_mmu_hash_v3()) {
1086 val
[3] = 0x80; /* OV5_MMU_BOTH */
1087 } else if (kvmppc_has_cap_mmu_radix()) {
1088 val
[3] = 0x40; /* OV5_MMU_RADIX_300 */
1090 val
[3] = 0x00; /* Hash */
1093 /* V3 MMU supports both hash and radix in tcg (with dynamic switching) */
1096 _FDT(fdt_setprop(fdt
, chosen
, "ibm,arch-vec-5-platform-support",
1100 static void spapr_dt_chosen(SpaprMachineState
*spapr
, void *fdt
)
1102 MachineState
*machine
= MACHINE(spapr
);
1103 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
1105 const char *boot_device
= machine
->boot_order
;
1106 char *stdout_path
= spapr_vio_stdout_path(spapr
->vio_bus
);
1108 char *bootlist
= get_boot_devices_list(&cb
);
1110 _FDT(chosen
= fdt_add_subnode(fdt
, 0, "chosen"));
1112 if (machine
->kernel_cmdline
&& machine
->kernel_cmdline
[0]) {
1113 _FDT(fdt_setprop_string(fdt
, chosen
, "bootargs",
1114 machine
->kernel_cmdline
));
1116 if (spapr
->initrd_size
) {
1117 _FDT(fdt_setprop_cell(fdt
, chosen
, "linux,initrd-start",
1118 spapr
->initrd_base
));
1119 _FDT(fdt_setprop_cell(fdt
, chosen
, "linux,initrd-end",
1120 spapr
->initrd_base
+ spapr
->initrd_size
));
1123 if (spapr
->kernel_size
) {
1124 uint64_t kprop
[2] = { cpu_to_be64(KERNEL_LOAD_ADDR
),
1125 cpu_to_be64(spapr
->kernel_size
) };
1127 _FDT(fdt_setprop(fdt
, chosen
, "qemu,boot-kernel",
1128 &kprop
, sizeof(kprop
)));
1129 if (spapr
->kernel_le
) {
1130 _FDT(fdt_setprop(fdt
, chosen
, "qemu,boot-kernel-le", NULL
, 0));
1134 _FDT((fdt_setprop_cell(fdt
, chosen
, "qemu,boot-menu", boot_menu
)));
1136 _FDT(fdt_setprop_cell(fdt
, chosen
, "qemu,graphic-width", graphic_width
));
1137 _FDT(fdt_setprop_cell(fdt
, chosen
, "qemu,graphic-height", graphic_height
));
1138 _FDT(fdt_setprop_cell(fdt
, chosen
, "qemu,graphic-depth", graphic_depth
));
1140 if (cb
&& bootlist
) {
1143 for (i
= 0; i
< cb
; i
++) {
1144 if (bootlist
[i
] == '\n') {
1148 _FDT(fdt_setprop_string(fdt
, chosen
, "qemu,boot-list", bootlist
));
1151 if (boot_device
&& strlen(boot_device
)) {
1152 _FDT(fdt_setprop_string(fdt
, chosen
, "qemu,boot-device", boot_device
));
1155 if (!spapr
->has_graphics
&& stdout_path
) {
1157 * "linux,stdout-path" and "stdout" properties are deprecated by linux
1158 * kernel. New platforms should only use the "stdout-path" property. Set
1159 * the new property and continue using older property to remain
1160 * compatible with the existing firmware.
1162 _FDT(fdt_setprop_string(fdt
, chosen
, "linux,stdout-path", stdout_path
));
1163 _FDT(fdt_setprop_string(fdt
, chosen
, "stdout-path", stdout_path
));
1166 /* We can deal with BAR reallocation just fine, advertise it to the guest */
1167 if (smc
->linux_pci_probe
) {
1168 _FDT(fdt_setprop_cell(fdt
, chosen
, "linux,pci-probe-only", 0));
1171 spapr_dt_ov5_platform_support(spapr
, fdt
, chosen
);
1173 g_free(stdout_path
);
1177 static void spapr_dt_hypervisor(SpaprMachineState
*spapr
, void *fdt
)
1179 /* The /hypervisor node isn't in PAPR - this is a hack to allow PR
1180 * KVM to work under pHyp with some guest co-operation */
1182 uint8_t hypercall
[16];
1184 _FDT(hypervisor
= fdt_add_subnode(fdt
, 0, "hypervisor"));
1185 /* indicate KVM hypercall interface */
1186 _FDT(fdt_setprop_string(fdt
, hypervisor
, "compatible", "linux,kvm"));
1187 if (kvmppc_has_cap_fixup_hcalls()) {
1189 * Older KVM versions with older guest kernels were broken
1190 * with the magic page, don't allow the guest to map it.
1192 if (!kvmppc_get_hypercall(first_cpu
->env_ptr
, hypercall
,
1193 sizeof(hypercall
))) {
1194 _FDT(fdt_setprop(fdt
, hypervisor
, "hcall-instructions",
1195 hypercall
, sizeof(hypercall
)));
1200 static void *spapr_build_fdt(SpaprMachineState
*spapr
, bool reset
)
1202 MachineState
*machine
= MACHINE(spapr
);
1203 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1204 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
1210 fdt
= g_malloc0(FDT_MAX_SIZE
);
1211 _FDT((fdt_create_empty_tree(fdt
, FDT_MAX_SIZE
)));
1214 _FDT(fdt_setprop_string(fdt
, 0, "device_type", "chrp"));
1215 _FDT(fdt_setprop_string(fdt
, 0, "model", "IBM pSeries (emulated by qemu)"));
1216 _FDT(fdt_setprop_string(fdt
, 0, "compatible", "qemu,pseries"));
1218 /* Guest UUID & Name*/
1219 buf
= qemu_uuid_unparse_strdup(&qemu_uuid
);
1220 _FDT(fdt_setprop_string(fdt
, 0, "vm,uuid", buf
));
1221 if (qemu_uuid_set
) {
1222 _FDT(fdt_setprop_string(fdt
, 0, "system-id", buf
));
1226 if (qemu_get_vm_name()) {
1227 _FDT(fdt_setprop_string(fdt
, 0, "ibm,partition-name",
1228 qemu_get_vm_name()));
1231 /* Host Model & Serial Number */
1232 if (spapr
->host_model
) {
1233 _FDT(fdt_setprop_string(fdt
, 0, "host-model", spapr
->host_model
));
1234 } else if (smc
->broken_host_serial_model
&& kvmppc_get_host_model(&buf
)) {
1235 _FDT(fdt_setprop_string(fdt
, 0, "host-model", buf
));
1239 if (spapr
->host_serial
) {
1240 _FDT(fdt_setprop_string(fdt
, 0, "host-serial", spapr
->host_serial
));
1241 } else if (smc
->broken_host_serial_model
&& kvmppc_get_host_serial(&buf
)) {
1242 _FDT(fdt_setprop_string(fdt
, 0, "host-serial", buf
));
1246 _FDT(fdt_setprop_cell(fdt
, 0, "#address-cells", 2));
1247 _FDT(fdt_setprop_cell(fdt
, 0, "#size-cells", 2));
1249 /* /interrupt controller */
1250 spapr_irq_dt(spapr
, spapr_max_server_number(spapr
), fdt
, PHANDLE_INTC
);
1252 ret
= spapr_populate_memory(spapr
, fdt
);
1254 error_report("couldn't setup memory nodes in fdt");
1259 spapr_dt_vdevice(spapr
->vio_bus
, fdt
);
1261 if (object_resolve_path_type("", TYPE_SPAPR_RNG
, NULL
)) {
1262 ret
= spapr_rng_populate_dt(fdt
);
1264 error_report("could not set up rng device in the fdt");
1269 QLIST_FOREACH(phb
, &spapr
->phbs
, list
) {
1270 ret
= spapr_dt_phb(spapr
, phb
, PHANDLE_INTC
, fdt
, NULL
);
1272 error_report("couldn't setup PCI devices in fdt");
1278 spapr_populate_cpus_dt_node(fdt
, spapr
);
1280 if (smc
->dr_lmb_enabled
) {
1281 _FDT(spapr_dt_drc(fdt
, 0, NULL
, SPAPR_DR_CONNECTOR_TYPE_LMB
));
1284 if (mc
->has_hotpluggable_cpus
) {
1285 int offset
= fdt_path_offset(fdt
, "/cpus");
1286 ret
= spapr_dt_drc(fdt
, offset
, NULL
, SPAPR_DR_CONNECTOR_TYPE_CPU
);
1288 error_report("Couldn't set up CPU DR device tree properties");
1293 /* /event-sources */
1294 spapr_dt_events(spapr
, fdt
);
1297 spapr_dt_rtas(spapr
, fdt
);
1301 spapr_dt_chosen(spapr
, fdt
);
1305 if (kvm_enabled()) {
1306 spapr_dt_hypervisor(spapr
, fdt
);
1309 /* Build memory reserve map */
1311 if (spapr
->kernel_size
) {
1312 _FDT((fdt_add_mem_rsv(fdt
, KERNEL_LOAD_ADDR
, spapr
->kernel_size
)));
1314 if (spapr
->initrd_size
) {
1315 _FDT((fdt_add_mem_rsv(fdt
, spapr
->initrd_base
,
1316 spapr
->initrd_size
)));
1320 /* ibm,client-architecture-support updates */
1321 ret
= spapr_dt_cas_updates(spapr
, fdt
, spapr
->ov5_cas
);
1323 error_report("couldn't setup CAS properties fdt");
1327 if (smc
->dr_phb_enabled
) {
1328 ret
= spapr_dt_drc(fdt
, 0, NULL
, SPAPR_DR_CONNECTOR_TYPE_PHB
);
1330 error_report("Couldn't set up PHB DR device tree properties");
1338 static uint64_t translate_kernel_address(void *opaque
, uint64_t addr
)
1340 return (addr
& 0x0fffffff) + KERNEL_LOAD_ADDR
;
1343 static void emulate_spapr_hypercall(PPCVirtualHypervisor
*vhyp
,
1346 CPUPPCState
*env
= &cpu
->env
;
1348 /* The TCG path should also be holding the BQL at this point */
1349 g_assert(qemu_mutex_iothread_locked());
1352 hcall_dprintf("Hypercall made with MSR[PR]=1\n");
1353 env
->gpr
[3] = H_PRIVILEGE
;
1355 env
->gpr
[3] = spapr_hypercall(cpu
, env
->gpr
[3], &env
->gpr
[4]);
1359 struct LPCRSyncState
{
1364 static void do_lpcr_sync(CPUState
*cs
, run_on_cpu_data arg
)
1366 struct LPCRSyncState
*s
= arg
.host_ptr
;
1367 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
1368 CPUPPCState
*env
= &cpu
->env
;
1371 cpu_synchronize_state(cs
);
1372 lpcr
= env
->spr
[SPR_LPCR
];
1375 ppc_store_lpcr(cpu
, lpcr
);
1378 void spapr_set_all_lpcrs(target_ulong value
, target_ulong mask
)
1381 struct LPCRSyncState s
= {
1386 run_on_cpu(cs
, do_lpcr_sync
, RUN_ON_CPU_HOST_PTR(&s
));
1390 static void spapr_get_pate(PPCVirtualHypervisor
*vhyp
, ppc_v3_pate_t
*entry
)
1392 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1394 /* Copy PATE1:GR into PATE0:HR */
1395 entry
->dw0
= spapr
->patb_entry
& PATE0_HR
;
1396 entry
->dw1
= spapr
->patb_entry
;
1399 #define HPTE(_table, _i) (void *)(((uint64_t *)(_table)) + ((_i) * 2))
1400 #define HPTE_VALID(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_VALID)
1401 #define HPTE_DIRTY(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_HPTE_DIRTY)
1402 #define CLEAN_HPTE(_hpte) ((*(uint64_t *)(_hpte)) &= tswap64(~HPTE64_V_HPTE_DIRTY))
1403 #define DIRTY_HPTE(_hpte) ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY))
1406 * Get the fd to access the kernel htab, re-opening it if necessary
1408 static int get_htab_fd(SpaprMachineState
*spapr
)
1410 Error
*local_err
= NULL
;
1412 if (spapr
->htab_fd
>= 0) {
1413 return spapr
->htab_fd
;
1416 spapr
->htab_fd
= kvmppc_get_htab_fd(false, 0, &local_err
);
1417 if (spapr
->htab_fd
< 0) {
1418 error_report_err(local_err
);
1421 return spapr
->htab_fd
;
1424 void close_htab_fd(SpaprMachineState
*spapr
)
1426 if (spapr
->htab_fd
>= 0) {
1427 close(spapr
->htab_fd
);
1429 spapr
->htab_fd
= -1;
1432 static hwaddr
spapr_hpt_mask(PPCVirtualHypervisor
*vhyp
)
1434 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1436 return HTAB_SIZE(spapr
) / HASH_PTEG_SIZE_64
- 1;
1439 static target_ulong
spapr_encode_hpt_for_kvm_pr(PPCVirtualHypervisor
*vhyp
)
1441 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1443 assert(kvm_enabled());
1449 return (target_ulong
)(uintptr_t)spapr
->htab
| (spapr
->htab_shift
- 18);
1452 static const ppc_hash_pte64_t
*spapr_map_hptes(PPCVirtualHypervisor
*vhyp
,
1455 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1456 hwaddr pte_offset
= ptex
* HASH_PTE_SIZE_64
;
1460 * HTAB is controlled by KVM. Fetch into temporary buffer
1462 ppc_hash_pte64_t
*hptes
= g_malloc(n
* HASH_PTE_SIZE_64
);
1463 kvmppc_read_hptes(hptes
, ptex
, n
);
1468 * HTAB is controlled by QEMU. Just point to the internally
1471 return (const ppc_hash_pte64_t
*)(spapr
->htab
+ pte_offset
);
1474 static void spapr_unmap_hptes(PPCVirtualHypervisor
*vhyp
,
1475 const ppc_hash_pte64_t
*hptes
,
1478 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1481 g_free((void *)hptes
);
1484 /* Nothing to do for qemu managed HPT */
1487 void spapr_store_hpte(PowerPCCPU
*cpu
, hwaddr ptex
,
1488 uint64_t pte0
, uint64_t pte1
)
1490 SpaprMachineState
*spapr
= SPAPR_MACHINE(cpu
->vhyp
);
1491 hwaddr offset
= ptex
* HASH_PTE_SIZE_64
;
1494 kvmppc_write_hpte(ptex
, pte0
, pte1
);
1496 if (pte0
& HPTE64_V_VALID
) {
1497 stq_p(spapr
->htab
+ offset
+ HASH_PTE_SIZE_64
/ 2, pte1
);
1499 * When setting valid, we write PTE1 first. This ensures
1500 * proper synchronization with the reading code in
1501 * ppc_hash64_pteg_search()
1504 stq_p(spapr
->htab
+ offset
, pte0
);
1506 stq_p(spapr
->htab
+ offset
, pte0
);
1508 * When clearing it we set PTE0 first. This ensures proper
1509 * synchronization with the reading code in
1510 * ppc_hash64_pteg_search()
1513 stq_p(spapr
->htab
+ offset
+ HASH_PTE_SIZE_64
/ 2, pte1
);
1518 static void spapr_hpte_set_c(PPCVirtualHypervisor
*vhyp
, hwaddr ptex
,
1521 hwaddr offset
= ptex
* HASH_PTE_SIZE_64
+ 15;
1522 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1525 /* There should always be a hash table when this is called */
1526 error_report("spapr_hpte_set_c called with no hash table !");
1530 /* The HW performs a non-atomic byte update */
1531 stb_p(spapr
->htab
+ offset
, (pte1
& 0xff) | 0x80);
1534 static void spapr_hpte_set_r(PPCVirtualHypervisor
*vhyp
, hwaddr ptex
,
1537 hwaddr offset
= ptex
* HASH_PTE_SIZE_64
+ 14;
1538 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1541 /* There should always be a hash table when this is called */
1542 error_report("spapr_hpte_set_r called with no hash table !");
1546 /* The HW performs a non-atomic byte update */
1547 stb_p(spapr
->htab
+ offset
, ((pte1
>> 8) & 0xff) | 0x01);
1550 int spapr_hpt_shift_for_ramsize(uint64_t ramsize
)
1554 /* We aim for a hash table of size 1/128 the size of RAM (rounded
1555 * up). The PAPR recommendation is actually 1/64 of RAM size, but
1556 * that's much more than is needed for Linux guests */
1557 shift
= ctz64(pow2ceil(ramsize
)) - 7;
1558 shift
= MAX(shift
, 18); /* Minimum architected size */
1559 shift
= MIN(shift
, 46); /* Maximum architected size */
1563 void spapr_free_hpt(SpaprMachineState
*spapr
)
1565 g_free(spapr
->htab
);
1567 spapr
->htab_shift
= 0;
1568 close_htab_fd(spapr
);
1571 void spapr_reallocate_hpt(SpaprMachineState
*spapr
, int shift
,
1576 /* Clean up any HPT info from a previous boot */
1577 spapr_free_hpt(spapr
);
1579 rc
= kvmppc_reset_htab(shift
);
1581 /* kernel-side HPT needed, but couldn't allocate one */
1582 error_setg_errno(errp
, errno
,
1583 "Failed to allocate KVM HPT of order %d (try smaller maxmem?)",
1585 /* This is almost certainly fatal, but if the caller really
1586 * wants to carry on with shift == 0, it's welcome to try */
1587 } else if (rc
> 0) {
1588 /* kernel-side HPT allocated */
1591 "Requested order %d HPT, but kernel allocated order %ld (try smaller maxmem?)",
1595 spapr
->htab_shift
= shift
;
1598 /* kernel-side HPT not needed, allocate in userspace instead */
1599 size_t size
= 1ULL << shift
;
1602 spapr
->htab
= qemu_memalign(size
, size
);
1604 error_setg_errno(errp
, errno
,
1605 "Could not allocate HPT of order %d", shift
);
1609 memset(spapr
->htab
, 0, size
);
1610 spapr
->htab_shift
= shift
;
1612 for (i
= 0; i
< size
/ HASH_PTE_SIZE_64
; i
++) {
1613 DIRTY_HPTE(HPTE(spapr
->htab
, i
));
1616 /* We're setting up a hash table, so that means we're not radix */
1617 spapr
->patb_entry
= 0;
1618 spapr_set_all_lpcrs(0, LPCR_HR
| LPCR_UPRT
);
1621 void spapr_setup_hpt_and_vrma(SpaprMachineState
*spapr
)
1625 if ((spapr
->resize_hpt
== SPAPR_RESIZE_HPT_DISABLED
)
1626 || (spapr
->cas_reboot
1627 && !spapr_ovec_test(spapr
->ov5_cas
, OV5_HPT_RESIZE
))) {
1628 hpt_shift
= spapr_hpt_shift_for_ramsize(MACHINE(spapr
)->maxram_size
);
1630 uint64_t current_ram_size
;
1632 current_ram_size
= MACHINE(spapr
)->ram_size
+ get_plugged_memory_size();
1633 hpt_shift
= spapr_hpt_shift_for_ramsize(current_ram_size
);
1635 spapr_reallocate_hpt(spapr
, hpt_shift
, &error_fatal
);
1637 if (spapr
->vrma_adjust
) {
1638 spapr
->rma_size
= kvmppc_rma_size(spapr_node0_size(MACHINE(spapr
)),
1643 static int spapr_reset_drcs(Object
*child
, void *opaque
)
1646 (SpaprDrc
*) object_dynamic_cast(child
,
1647 TYPE_SPAPR_DR_CONNECTOR
);
1650 spapr_drc_reset(drc
);
1656 static void spapr_machine_reset(MachineState
*machine
)
1658 SpaprMachineState
*spapr
= SPAPR_MACHINE(machine
);
1659 PowerPCCPU
*first_ppc_cpu
;
1664 spapr_caps_apply(spapr
);
1666 first_ppc_cpu
= POWERPC_CPU(first_cpu
);
1667 if (kvm_enabled() && kvmppc_has_cap_mmu_radix() &&
1668 ppc_type_check_compat(machine
->cpu_type
, CPU_POWERPC_LOGICAL_3_00
, 0,
1669 spapr
->max_compat_pvr
)) {
1671 * If using KVM with radix mode available, VCPUs can be started
1672 * without a HPT because KVM will start them in radix mode.
1673 * Set the GR bit in PATE so that we know there is no HPT.
1675 spapr
->patb_entry
= PATE1_GR
;
1676 spapr_set_all_lpcrs(LPCR_HR
| LPCR_UPRT
, LPCR_HR
| LPCR_UPRT
);
1678 spapr_setup_hpt_and_vrma(spapr
);
1681 qemu_devices_reset();
1684 * If this reset wasn't generated by CAS, we should reset our
1685 * negotiated options and start from scratch
1687 if (!spapr
->cas_reboot
) {
1688 spapr_ovec_cleanup(spapr
->ov5_cas
);
1689 spapr
->ov5_cas
= spapr_ovec_new();
1691 ppc_set_compat_all(spapr
->max_compat_pvr
, &error_fatal
);
1695 * This is fixing some of the default configuration of the XIVE
1696 * devices. To be called after the reset of the machine devices.
1698 spapr_irq_reset(spapr
, &error_fatal
);
1701 * There is no CAS under qtest. Simulate one to please the code that
1702 * depends on spapr->ov5_cas. This is especially needed to test device
1703 * unplug, so we do that before resetting the DRCs.
1705 if (qtest_enabled()) {
1706 spapr_ovec_cleanup(spapr
->ov5_cas
);
1707 spapr
->ov5_cas
= spapr_ovec_clone(spapr
->ov5
);
1710 /* DRC reset may cause a device to be unplugged. This will cause troubles
1711 * if this device is used by another device (eg, a running vhost backend
1712 * will crash QEMU if the DIMM holding the vring goes away). To avoid such
1713 * situations, we reset DRCs after all devices have been reset.
1715 object_child_foreach_recursive(object_get_root(), spapr_reset_drcs
, NULL
);
1717 spapr_clear_pending_events(spapr
);
1720 * We place the device tree and RTAS just below either the top of the RMA,
1721 * or just below 2GB, whichever is lower, so that it can be
1722 * processed with 32-bit real mode code if necessary
1724 fdt_addr
= MIN(spapr
->rma_size
, RTAS_MAX_ADDR
) - FDT_MAX_SIZE
;
1726 fdt
= spapr_build_fdt(spapr
, true);
1730 /* Should only fail if we've built a corrupted tree */
1733 if (fdt_totalsize(fdt
) > FDT_MAX_SIZE
) {
1734 error_report("FDT too big ! 0x%x bytes (max is 0x%x)",
1735 fdt_totalsize(fdt
), FDT_MAX_SIZE
);
1740 qemu_fdt_dumpdtb(fdt
, fdt_totalsize(fdt
));
1741 cpu_physical_memory_write(fdt_addr
, fdt
, fdt_totalsize(fdt
));
1742 g_free(spapr
->fdt_blob
);
1743 spapr
->fdt_size
= fdt_totalsize(fdt
);
1744 spapr
->fdt_initial_size
= spapr
->fdt_size
;
1745 spapr
->fdt_blob
= fdt
;
1747 /* Set up the entry state */
1748 spapr_cpu_set_entry_state(first_ppc_cpu
, SPAPR_ENTRY_POINT
, fdt_addr
);
1749 first_ppc_cpu
->env
.gpr
[5] = 0;
1751 spapr
->cas_reboot
= false;
1754 static void spapr_create_nvram(SpaprMachineState
*spapr
)
1756 DeviceState
*dev
= qdev_create(&spapr
->vio_bus
->bus
, "spapr-nvram");
1757 DriveInfo
*dinfo
= drive_get(IF_PFLASH
, 0, 0);
1760 qdev_prop_set_drive(dev
, "drive", blk_by_legacy_dinfo(dinfo
),
1764 qdev_init_nofail(dev
);
1766 spapr
->nvram
= (struct SpaprNvram
*)dev
;
1769 static void spapr_rtc_create(SpaprMachineState
*spapr
)
1771 object_initialize_child(OBJECT(spapr
), "rtc",
1772 &spapr
->rtc
, sizeof(spapr
->rtc
), TYPE_SPAPR_RTC
,
1773 &error_fatal
, NULL
);
1774 object_property_set_bool(OBJECT(&spapr
->rtc
), true, "realized",
1776 object_property_add_alias(OBJECT(spapr
), "rtc-time", OBJECT(&spapr
->rtc
),
1777 "date", &error_fatal
);
1780 /* Returns whether we want to use VGA or not */
1781 static bool spapr_vga_init(PCIBus
*pci_bus
, Error
**errp
)
1783 switch (vga_interface_type
) {
1791 return pci_vga_init(pci_bus
) != NULL
;
1794 "Unsupported VGA mode, only -vga std or -vga virtio is supported");
1799 static int spapr_pre_load(void *opaque
)
1803 rc
= spapr_caps_pre_load(opaque
);
1811 static int spapr_post_load(void *opaque
, int version_id
)
1813 SpaprMachineState
*spapr
= (SpaprMachineState
*)opaque
;
1816 err
= spapr_caps_post_migration(spapr
);
1822 * In earlier versions, there was no separate qdev for the PAPR
1823 * RTC, so the RTC offset was stored directly in sPAPREnvironment.
1824 * So when migrating from those versions, poke the incoming offset
1825 * value into the RTC device
1827 if (version_id
< 3) {
1828 err
= spapr_rtc_import_offset(&spapr
->rtc
, spapr
->rtc_offset
);
1834 if (kvm_enabled() && spapr
->patb_entry
) {
1835 PowerPCCPU
*cpu
= POWERPC_CPU(first_cpu
);
1836 bool radix
= !!(spapr
->patb_entry
& PATE1_GR
);
1837 bool gtse
= !!(cpu
->env
.spr
[SPR_LPCR
] & LPCR_GTSE
);
1840 * Update LPCR:HR and UPRT as they may not be set properly in
1843 spapr_set_all_lpcrs(radix
? (LPCR_HR
| LPCR_UPRT
) : 0,
1844 LPCR_HR
| LPCR_UPRT
);
1846 err
= kvmppc_configure_v3_mmu(cpu
, radix
, gtse
, spapr
->patb_entry
);
1848 error_report("Process table config unsupported by the host");
1853 err
= spapr_irq_post_load(spapr
, version_id
);
1861 static int spapr_pre_save(void *opaque
)
1865 rc
= spapr_caps_pre_save(opaque
);
1873 static bool version_before_3(void *opaque
, int version_id
)
1875 return version_id
< 3;
1878 static bool spapr_pending_events_needed(void *opaque
)
1880 SpaprMachineState
*spapr
= (SpaprMachineState
*)opaque
;
1881 return !QTAILQ_EMPTY(&spapr
->pending_events
);
1884 static const VMStateDescription vmstate_spapr_event_entry
= {
1885 .name
= "spapr_event_log_entry",
1887 .minimum_version_id
= 1,
1888 .fields
= (VMStateField
[]) {
1889 VMSTATE_UINT32(summary
, SpaprEventLogEntry
),
1890 VMSTATE_UINT32(extended_length
, SpaprEventLogEntry
),
1891 VMSTATE_VBUFFER_ALLOC_UINT32(extended_log
, SpaprEventLogEntry
, 0,
1892 NULL
, extended_length
),
1893 VMSTATE_END_OF_LIST()
1897 static const VMStateDescription vmstate_spapr_pending_events
= {
1898 .name
= "spapr_pending_events",
1900 .minimum_version_id
= 1,
1901 .needed
= spapr_pending_events_needed
,
1902 .fields
= (VMStateField
[]) {
1903 VMSTATE_QTAILQ_V(pending_events
, SpaprMachineState
, 1,
1904 vmstate_spapr_event_entry
, SpaprEventLogEntry
, next
),
1905 VMSTATE_END_OF_LIST()
1909 static bool spapr_ov5_cas_needed(void *opaque
)
1911 SpaprMachineState
*spapr
= opaque
;
1912 SpaprOptionVector
*ov5_mask
= spapr_ovec_new();
1913 SpaprOptionVector
*ov5_legacy
= spapr_ovec_new();
1914 SpaprOptionVector
*ov5_removed
= spapr_ovec_new();
1917 /* Prior to the introduction of SpaprOptionVector, we had two option
1918 * vectors we dealt with: OV5_FORM1_AFFINITY, and OV5_DRCONF_MEMORY.
1919 * Both of these options encode machine topology into the device-tree
1920 * in such a way that the now-booted OS should still be able to interact
1921 * appropriately with QEMU regardless of what options were actually
1922 * negotiatied on the source side.
1924 * As such, we can avoid migrating the CAS-negotiated options if these
1925 * are the only options available on the current machine/platform.
1926 * Since these are the only options available for pseries-2.7 and
1927 * earlier, this allows us to maintain old->new/new->old migration
1930 * For QEMU 2.8+, there are additional CAS-negotiatable options available
1931 * via default pseries-2.8 machines and explicit command-line parameters.
1932 * Some of these options, like OV5_HP_EVT, *do* require QEMU to be aware
1933 * of the actual CAS-negotiated values to continue working properly. For
1934 * example, availability of memory unplug depends on knowing whether
1935 * OV5_HP_EVT was negotiated via CAS.
1937 * Thus, for any cases where the set of available CAS-negotiatable
1938 * options extends beyond OV5_FORM1_AFFINITY and OV5_DRCONF_MEMORY, we
1939 * include the CAS-negotiated options in the migration stream, unless
1940 * if they affect boot time behaviour only.
1942 spapr_ovec_set(ov5_mask
, OV5_FORM1_AFFINITY
);
1943 spapr_ovec_set(ov5_mask
, OV5_DRCONF_MEMORY
);
1944 spapr_ovec_set(ov5_mask
, OV5_DRMEM_V2
);
1946 /* spapr_ovec_diff returns true if bits were removed. we avoid using
1947 * the mask itself since in the future it's possible "legacy" bits may be
1948 * removed via machine options, which could generate a false positive
1949 * that breaks migration.
1951 spapr_ovec_intersect(ov5_legacy
, spapr
->ov5
, ov5_mask
);
1952 cas_needed
= spapr_ovec_diff(ov5_removed
, spapr
->ov5
, ov5_legacy
);
1954 spapr_ovec_cleanup(ov5_mask
);
1955 spapr_ovec_cleanup(ov5_legacy
);
1956 spapr_ovec_cleanup(ov5_removed
);
1961 static const VMStateDescription vmstate_spapr_ov5_cas
= {
1962 .name
= "spapr_option_vector_ov5_cas",
1964 .minimum_version_id
= 1,
1965 .needed
= spapr_ov5_cas_needed
,
1966 .fields
= (VMStateField
[]) {
1967 VMSTATE_STRUCT_POINTER_V(ov5_cas
, SpaprMachineState
, 1,
1968 vmstate_spapr_ovec
, SpaprOptionVector
),
1969 VMSTATE_END_OF_LIST()
1973 static bool spapr_patb_entry_needed(void *opaque
)
1975 SpaprMachineState
*spapr
= opaque
;
1977 return !!spapr
->patb_entry
;
1980 static const VMStateDescription vmstate_spapr_patb_entry
= {
1981 .name
= "spapr_patb_entry",
1983 .minimum_version_id
= 1,
1984 .needed
= spapr_patb_entry_needed
,
1985 .fields
= (VMStateField
[]) {
1986 VMSTATE_UINT64(patb_entry
, SpaprMachineState
),
1987 VMSTATE_END_OF_LIST()
1991 static bool spapr_irq_map_needed(void *opaque
)
1993 SpaprMachineState
*spapr
= opaque
;
1995 return spapr
->irq_map
&& !bitmap_empty(spapr
->irq_map
, spapr
->irq_map_nr
);
1998 static const VMStateDescription vmstate_spapr_irq_map
= {
1999 .name
= "spapr_irq_map",
2001 .minimum_version_id
= 1,
2002 .needed
= spapr_irq_map_needed
,
2003 .fields
= (VMStateField
[]) {
2004 VMSTATE_BITMAP(irq_map
, SpaprMachineState
, 0, irq_map_nr
),
2005 VMSTATE_END_OF_LIST()
2009 static bool spapr_dtb_needed(void *opaque
)
2011 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(opaque
);
2013 return smc
->update_dt_enabled
;
2016 static int spapr_dtb_pre_load(void *opaque
)
2018 SpaprMachineState
*spapr
= (SpaprMachineState
*)opaque
;
2020 g_free(spapr
->fdt_blob
);
2021 spapr
->fdt_blob
= NULL
;
2022 spapr
->fdt_size
= 0;
2027 static const VMStateDescription vmstate_spapr_dtb
= {
2028 .name
= "spapr_dtb",
2030 .minimum_version_id
= 1,
2031 .needed
= spapr_dtb_needed
,
2032 .pre_load
= spapr_dtb_pre_load
,
2033 .fields
= (VMStateField
[]) {
2034 VMSTATE_UINT32(fdt_initial_size
, SpaprMachineState
),
2035 VMSTATE_UINT32(fdt_size
, SpaprMachineState
),
2036 VMSTATE_VBUFFER_ALLOC_UINT32(fdt_blob
, SpaprMachineState
, 0, NULL
,
2038 VMSTATE_END_OF_LIST()
2042 static const VMStateDescription vmstate_spapr
= {
2045 .minimum_version_id
= 1,
2046 .pre_load
= spapr_pre_load
,
2047 .post_load
= spapr_post_load
,
2048 .pre_save
= spapr_pre_save
,
2049 .fields
= (VMStateField
[]) {
2050 /* used to be @next_irq */
2051 VMSTATE_UNUSED_BUFFER(version_before_3
, 0, 4),
2054 VMSTATE_UINT64_TEST(rtc_offset
, SpaprMachineState
, version_before_3
),
2056 VMSTATE_PPC_TIMEBASE_V(tb
, SpaprMachineState
, 2),
2057 VMSTATE_END_OF_LIST()
2059 .subsections
= (const VMStateDescription
*[]) {
2060 &vmstate_spapr_ov5_cas
,
2061 &vmstate_spapr_patb_entry
,
2062 &vmstate_spapr_pending_events
,
2063 &vmstate_spapr_cap_htm
,
2064 &vmstate_spapr_cap_vsx
,
2065 &vmstate_spapr_cap_dfp
,
2066 &vmstate_spapr_cap_cfpc
,
2067 &vmstate_spapr_cap_sbbc
,
2068 &vmstate_spapr_cap_ibs
,
2069 &vmstate_spapr_cap_hpt_maxpagesize
,
2070 &vmstate_spapr_irq_map
,
2071 &vmstate_spapr_cap_nested_kvm_hv
,
2073 &vmstate_spapr_cap_large_decr
,
2074 &vmstate_spapr_cap_ccf_assist
,
2079 static int htab_save_setup(QEMUFile
*f
, void *opaque
)
2081 SpaprMachineState
*spapr
= opaque
;
2083 /* "Iteration" header */
2084 if (!spapr
->htab_shift
) {
2085 qemu_put_be32(f
, -1);
2087 qemu_put_be32(f
, spapr
->htab_shift
);
2091 spapr
->htab_save_index
= 0;
2092 spapr
->htab_first_pass
= true;
2094 if (spapr
->htab_shift
) {
2095 assert(kvm_enabled());
2103 static void htab_save_chunk(QEMUFile
*f
, SpaprMachineState
*spapr
,
2104 int chunkstart
, int n_valid
, int n_invalid
)
2106 qemu_put_be32(f
, chunkstart
);
2107 qemu_put_be16(f
, n_valid
);
2108 qemu_put_be16(f
, n_invalid
);
2109 qemu_put_buffer(f
, HPTE(spapr
->htab
, chunkstart
),
2110 HASH_PTE_SIZE_64
* n_valid
);
2113 static void htab_save_end_marker(QEMUFile
*f
)
2115 qemu_put_be32(f
, 0);
2116 qemu_put_be16(f
, 0);
2117 qemu_put_be16(f
, 0);
2120 static void htab_save_first_pass(QEMUFile
*f
, SpaprMachineState
*spapr
,
2123 bool has_timeout
= max_ns
!= -1;
2124 int htabslots
= HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
;
2125 int index
= spapr
->htab_save_index
;
2126 int64_t starttime
= qemu_clock_get_ns(QEMU_CLOCK_REALTIME
);
2128 assert(spapr
->htab_first_pass
);
2133 /* Consume invalid HPTEs */
2134 while ((index
< htabslots
)
2135 && !HPTE_VALID(HPTE(spapr
->htab
, index
))) {
2136 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
2140 /* Consume valid HPTEs */
2142 while ((index
< htabslots
) && (index
- chunkstart
< USHRT_MAX
)
2143 && HPTE_VALID(HPTE(spapr
->htab
, index
))) {
2144 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
2148 if (index
> chunkstart
) {
2149 int n_valid
= index
- chunkstart
;
2151 htab_save_chunk(f
, spapr
, chunkstart
, n_valid
, 0);
2154 (qemu_clock_get_ns(QEMU_CLOCK_REALTIME
) - starttime
) > max_ns
) {
2158 } while ((index
< htabslots
) && !qemu_file_rate_limit(f
));
2160 if (index
>= htabslots
) {
2161 assert(index
== htabslots
);
2163 spapr
->htab_first_pass
= false;
2165 spapr
->htab_save_index
= index
;
2168 static int htab_save_later_pass(QEMUFile
*f
, SpaprMachineState
*spapr
,
2171 bool final
= max_ns
< 0;
2172 int htabslots
= HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
;
2173 int examined
= 0, sent
= 0;
2174 int index
= spapr
->htab_save_index
;
2175 int64_t starttime
= qemu_clock_get_ns(QEMU_CLOCK_REALTIME
);
2177 assert(!spapr
->htab_first_pass
);
2180 int chunkstart
, invalidstart
;
2182 /* Consume non-dirty HPTEs */
2183 while ((index
< htabslots
)
2184 && !HPTE_DIRTY(HPTE(spapr
->htab
, index
))) {
2190 /* Consume valid dirty HPTEs */
2191 while ((index
< htabslots
) && (index
- chunkstart
< USHRT_MAX
)
2192 && HPTE_DIRTY(HPTE(spapr
->htab
, index
))
2193 && HPTE_VALID(HPTE(spapr
->htab
, index
))) {
2194 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
2199 invalidstart
= index
;
2200 /* Consume invalid dirty HPTEs */
2201 while ((index
< htabslots
) && (index
- invalidstart
< USHRT_MAX
)
2202 && HPTE_DIRTY(HPTE(spapr
->htab
, index
))
2203 && !HPTE_VALID(HPTE(spapr
->htab
, index
))) {
2204 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
2209 if (index
> chunkstart
) {
2210 int n_valid
= invalidstart
- chunkstart
;
2211 int n_invalid
= index
- invalidstart
;
2213 htab_save_chunk(f
, spapr
, chunkstart
, n_valid
, n_invalid
);
2214 sent
+= index
- chunkstart
;
2216 if (!final
&& (qemu_clock_get_ns(QEMU_CLOCK_REALTIME
) - starttime
) > max_ns
) {
2221 if (examined
>= htabslots
) {
2225 if (index
>= htabslots
) {
2226 assert(index
== htabslots
);
2229 } while ((examined
< htabslots
) && (!qemu_file_rate_limit(f
) || final
));
2231 if (index
>= htabslots
) {
2232 assert(index
== htabslots
);
2236 spapr
->htab_save_index
= index
;
2238 return (examined
>= htabslots
) && (sent
== 0) ? 1 : 0;
2241 #define MAX_ITERATION_NS 5000000 /* 5 ms */
2242 #define MAX_KVM_BUF_SIZE 2048
2244 static int htab_save_iterate(QEMUFile
*f
, void *opaque
)
2246 SpaprMachineState
*spapr
= opaque
;
2250 /* Iteration header */
2251 if (!spapr
->htab_shift
) {
2252 qemu_put_be32(f
, -1);
2255 qemu_put_be32(f
, 0);
2259 assert(kvm_enabled());
2261 fd
= get_htab_fd(spapr
);
2266 rc
= kvmppc_save_htab(f
, fd
, MAX_KVM_BUF_SIZE
, MAX_ITERATION_NS
);
2270 } else if (spapr
->htab_first_pass
) {
2271 htab_save_first_pass(f
, spapr
, MAX_ITERATION_NS
);
2273 rc
= htab_save_later_pass(f
, spapr
, MAX_ITERATION_NS
);
2276 htab_save_end_marker(f
);
2281 static int htab_save_complete(QEMUFile
*f
, void *opaque
)
2283 SpaprMachineState
*spapr
= opaque
;
2286 /* Iteration header */
2287 if (!spapr
->htab_shift
) {
2288 qemu_put_be32(f
, -1);
2291 qemu_put_be32(f
, 0);
2297 assert(kvm_enabled());
2299 fd
= get_htab_fd(spapr
);
2304 rc
= kvmppc_save_htab(f
, fd
, MAX_KVM_BUF_SIZE
, -1);
2309 if (spapr
->htab_first_pass
) {
2310 htab_save_first_pass(f
, spapr
, -1);
2312 htab_save_later_pass(f
, spapr
, -1);
2316 htab_save_end_marker(f
);
2321 static int htab_load(QEMUFile
*f
, void *opaque
, int version_id
)
2323 SpaprMachineState
*spapr
= opaque
;
2324 uint32_t section_hdr
;
2326 Error
*local_err
= NULL
;
2328 if (version_id
< 1 || version_id
> 1) {
2329 error_report("htab_load() bad version");
2333 section_hdr
= qemu_get_be32(f
);
2335 if (section_hdr
== -1) {
2336 spapr_free_hpt(spapr
);
2341 /* First section gives the htab size */
2342 spapr_reallocate_hpt(spapr
, section_hdr
, &local_err
);
2344 error_report_err(local_err
);
2351 assert(kvm_enabled());
2353 fd
= kvmppc_get_htab_fd(true, 0, &local_err
);
2355 error_report_err(local_err
);
2362 uint16_t n_valid
, n_invalid
;
2364 index
= qemu_get_be32(f
);
2365 n_valid
= qemu_get_be16(f
);
2366 n_invalid
= qemu_get_be16(f
);
2368 if ((index
== 0) && (n_valid
== 0) && (n_invalid
== 0)) {
2373 if ((index
+ n_valid
+ n_invalid
) >
2374 (HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
)) {
2375 /* Bad index in stream */
2377 "htab_load() bad index %d (%hd+%hd entries) in htab stream (htab_shift=%d)",
2378 index
, n_valid
, n_invalid
, spapr
->htab_shift
);
2384 qemu_get_buffer(f
, HPTE(spapr
->htab
, index
),
2385 HASH_PTE_SIZE_64
* n_valid
);
2388 memset(HPTE(spapr
->htab
, index
+ n_valid
), 0,
2389 HASH_PTE_SIZE_64
* n_invalid
);
2396 rc
= kvmppc_load_htab_chunk(f
, fd
, index
, n_valid
, n_invalid
);
2411 static void htab_save_cleanup(void *opaque
)
2413 SpaprMachineState
*spapr
= opaque
;
2415 close_htab_fd(spapr
);
2418 static SaveVMHandlers savevm_htab_handlers
= {
2419 .save_setup
= htab_save_setup
,
2420 .save_live_iterate
= htab_save_iterate
,
2421 .save_live_complete_precopy
= htab_save_complete
,
2422 .save_cleanup
= htab_save_cleanup
,
2423 .load_state
= htab_load
,
2426 static void spapr_boot_set(void *opaque
, const char *boot_device
,
2429 MachineState
*machine
= MACHINE(opaque
);
2430 machine
->boot_order
= g_strdup(boot_device
);
2433 static void spapr_create_lmb_dr_connectors(SpaprMachineState
*spapr
)
2435 MachineState
*machine
= MACHINE(spapr
);
2436 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
2437 uint32_t nr_lmbs
= (machine
->maxram_size
- machine
->ram_size
)/lmb_size
;
2440 for (i
= 0; i
< nr_lmbs
; i
++) {
2443 addr
= i
* lmb_size
+ machine
->device_memory
->base
;
2444 spapr_dr_connector_new(OBJECT(spapr
), TYPE_SPAPR_DRC_LMB
,
2450 * If RAM size, maxmem size and individual node mem sizes aren't aligned
2451 * to SPAPR_MEMORY_BLOCK_SIZE(256MB), then refuse to start the guest
2452 * since we can't support such unaligned sizes with DRCONF_MEMORY.
2454 static void spapr_validate_node_memory(MachineState
*machine
, Error
**errp
)
2458 if (machine
->ram_size
% SPAPR_MEMORY_BLOCK_SIZE
) {
2459 error_setg(errp
, "Memory size 0x" RAM_ADDR_FMT
2460 " is not aligned to %" PRIu64
" MiB",
2462 SPAPR_MEMORY_BLOCK_SIZE
/ MiB
);
2466 if (machine
->maxram_size
% SPAPR_MEMORY_BLOCK_SIZE
) {
2467 error_setg(errp
, "Maximum memory size 0x" RAM_ADDR_FMT
2468 " is not aligned to %" PRIu64
" MiB",
2470 SPAPR_MEMORY_BLOCK_SIZE
/ MiB
);
2474 for (i
= 0; i
< machine
->numa_state
->num_nodes
; i
++) {
2475 if (machine
->numa_state
->nodes
[i
].node_mem
% SPAPR_MEMORY_BLOCK_SIZE
) {
2477 "Node %d memory size 0x%" PRIx64
2478 " is not aligned to %" PRIu64
" MiB",
2479 i
, machine
->numa_state
->nodes
[i
].node_mem
,
2480 SPAPR_MEMORY_BLOCK_SIZE
/ MiB
);
2486 /* find cpu slot in machine->possible_cpus by core_id */
2487 static CPUArchId
*spapr_find_cpu_slot(MachineState
*ms
, uint32_t id
, int *idx
)
2489 int index
= id
/ ms
->smp
.threads
;
2491 if (index
>= ms
->possible_cpus
->len
) {
2497 return &ms
->possible_cpus
->cpus
[index
];
2500 static void spapr_set_vsmt_mode(SpaprMachineState
*spapr
, Error
**errp
)
2502 MachineState
*ms
= MACHINE(spapr
);
2503 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
2504 Error
*local_err
= NULL
;
2505 bool vsmt_user
= !!spapr
->vsmt
;
2506 int kvm_smt
= kvmppc_smt_threads();
2508 unsigned int smp_threads
= ms
->smp
.threads
;
2510 if (!kvm_enabled() && (smp_threads
> 1)) {
2511 error_setg(&local_err
, "TCG cannot support more than 1 thread/core "
2512 "on a pseries machine");
2515 if (!is_power_of_2(smp_threads
)) {
2516 error_setg(&local_err
, "Cannot support %d threads/core on a pseries "
2517 "machine because it must be a power of 2", smp_threads
);
2521 /* Detemine the VSMT mode to use: */
2523 if (spapr
->vsmt
< smp_threads
) {
2524 error_setg(&local_err
, "Cannot support VSMT mode %d"
2525 " because it must be >= threads/core (%d)",
2526 spapr
->vsmt
, smp_threads
);
2529 /* In this case, spapr->vsmt has been set by the command line */
2530 } else if (!smc
->smp_threads_vsmt
) {
2532 * Default VSMT value is tricky, because we need it to be as
2533 * consistent as possible (for migration), but this requires
2534 * changing it for at least some existing cases. We pick 8 as
2535 * the value that we'd get with KVM on POWER8, the
2536 * overwhelmingly common case in production systems.
2538 spapr
->vsmt
= MAX(8, smp_threads
);
2540 spapr
->vsmt
= smp_threads
;
2543 /* KVM: If necessary, set the SMT mode: */
2544 if (kvm_enabled() && (spapr
->vsmt
!= kvm_smt
)) {
2545 ret
= kvmppc_set_smt_threads(spapr
->vsmt
);
2547 /* Looks like KVM isn't able to change VSMT mode */
2548 error_setg(&local_err
,
2549 "Failed to set KVM's VSMT mode to %d (errno %d)",
2551 /* We can live with that if the default one is big enough
2552 * for the number of threads, and a submultiple of the one
2553 * we want. In this case we'll waste some vcpu ids, but
2554 * behaviour will be correct */
2555 if ((kvm_smt
>= smp_threads
) && ((spapr
->vsmt
% kvm_smt
) == 0)) {
2556 warn_report_err(local_err
);
2561 error_append_hint(&local_err
,
2562 "On PPC, a VM with %d threads/core"
2563 " on a host with %d threads/core"
2564 " requires the use of VSMT mode %d.\n",
2565 smp_threads
, kvm_smt
, spapr
->vsmt
);
2567 kvmppc_hint_smt_possible(&local_err
);
2572 /* else TCG: nothing to do currently */
2574 error_propagate(errp
, local_err
);
2577 static void spapr_init_cpus(SpaprMachineState
*spapr
)
2579 MachineState
*machine
= MACHINE(spapr
);
2580 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
2581 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
2582 const char *type
= spapr_get_cpu_core_type(machine
->cpu_type
);
2583 const CPUArchIdList
*possible_cpus
;
2584 unsigned int smp_cpus
= machine
->smp
.cpus
;
2585 unsigned int smp_threads
= machine
->smp
.threads
;
2586 unsigned int max_cpus
= machine
->smp
.max_cpus
;
2587 int boot_cores_nr
= smp_cpus
/ smp_threads
;
2590 possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
2591 if (mc
->has_hotpluggable_cpus
) {
2592 if (smp_cpus
% smp_threads
) {
2593 error_report("smp_cpus (%u) must be multiple of threads (%u)",
2594 smp_cpus
, smp_threads
);
2597 if (max_cpus
% smp_threads
) {
2598 error_report("max_cpus (%u) must be multiple of threads (%u)",
2599 max_cpus
, smp_threads
);
2603 if (max_cpus
!= smp_cpus
) {
2604 error_report("This machine version does not support CPU hotplug");
2607 boot_cores_nr
= possible_cpus
->len
;
2610 if (smc
->pre_2_10_has_unused_icps
) {
2613 for (i
= 0; i
< spapr_max_server_number(spapr
); i
++) {
2614 /* Dummy entries get deregistered when real ICPState objects
2615 * are registered during CPU core hotplug.
2617 pre_2_10_vmstate_register_dummy_icp(i
);
2621 for (i
= 0; i
< possible_cpus
->len
; i
++) {
2622 int core_id
= i
* smp_threads
;
2624 if (mc
->has_hotpluggable_cpus
) {
2625 spapr_dr_connector_new(OBJECT(spapr
), TYPE_SPAPR_DRC_CPU
,
2626 spapr_vcpu_id(spapr
, core_id
));
2629 if (i
< boot_cores_nr
) {
2630 Object
*core
= object_new(type
);
2631 int nr_threads
= smp_threads
;
2633 /* Handle the partially filled core for older machine types */
2634 if ((i
+ 1) * smp_threads
>= smp_cpus
) {
2635 nr_threads
= smp_cpus
- i
* smp_threads
;
2638 object_property_set_int(core
, nr_threads
, "nr-threads",
2640 object_property_set_int(core
, core_id
, CPU_CORE_PROP_CORE_ID
,
2642 object_property_set_bool(core
, true, "realized", &error_fatal
);
2649 static PCIHostState
*spapr_create_default_phb(void)
2653 dev
= qdev_create(NULL
, TYPE_SPAPR_PCI_HOST_BRIDGE
);
2654 qdev_prop_set_uint32(dev
, "index", 0);
2655 qdev_init_nofail(dev
);
2657 return PCI_HOST_BRIDGE(dev
);
2660 /* pSeries LPAR / sPAPR hardware init */
2661 static void spapr_machine_init(MachineState
*machine
)
2663 SpaprMachineState
*spapr
= SPAPR_MACHINE(machine
);
2664 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
2665 const char *kernel_filename
= machine
->kernel_filename
;
2666 const char *initrd_filename
= machine
->initrd_filename
;
2669 MemoryRegion
*sysmem
= get_system_memory();
2670 MemoryRegion
*ram
= g_new(MemoryRegion
, 1);
2671 hwaddr node0_size
= spapr_node0_size(machine
);
2672 long load_limit
, fw_size
;
2674 Error
*resize_hpt_err
= NULL
;
2676 msi_nonbroken
= true;
2678 QLIST_INIT(&spapr
->phbs
);
2679 QTAILQ_INIT(&spapr
->pending_dimm_unplugs
);
2681 /* Determine capabilities to run with */
2682 spapr_caps_init(spapr
);
2684 kvmppc_check_papr_resize_hpt(&resize_hpt_err
);
2685 if (spapr
->resize_hpt
== SPAPR_RESIZE_HPT_DEFAULT
) {
2687 * If the user explicitly requested a mode we should either
2688 * supply it, or fail completely (which we do below). But if
2689 * it's not set explicitly, we reset our mode to something
2692 if (resize_hpt_err
) {
2693 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_DISABLED
;
2694 error_free(resize_hpt_err
);
2695 resize_hpt_err
= NULL
;
2697 spapr
->resize_hpt
= smc
->resize_hpt_default
;
2701 assert(spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DEFAULT
);
2703 if ((spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DISABLED
) && resize_hpt_err
) {
2705 * User requested HPT resize, but this host can't supply it. Bail out
2707 error_report_err(resize_hpt_err
);
2711 spapr
->rma_size
= node0_size
;
2713 /* With KVM, we don't actually know whether KVM supports an
2714 * unbounded RMA (PR KVM) or is limited by the hash table size
2715 * (HV KVM using VRMA), so we always assume the latter
2717 * In that case, we also limit the initial allocations for RTAS
2718 * etc... to 256M since we have no way to know what the VRMA size
2719 * is going to be as it depends on the size of the hash table
2720 * which isn't determined yet.
2722 if (kvm_enabled()) {
2723 spapr
->vrma_adjust
= 1;
2724 spapr
->rma_size
= MIN(spapr
->rma_size
, 0x10000000);
2727 /* Actually we don't support unbounded RMA anymore since we added
2728 * proper emulation of HV mode. The max we can get is 16G which
2729 * also happens to be what we configure for PAPR mode so make sure
2730 * we don't do anything bigger than that
2732 spapr
->rma_size
= MIN(spapr
->rma_size
, 0x400000000ull
);
2734 if (spapr
->rma_size
> node0_size
) {
2735 error_report("Numa node 0 has to span the RMA (%#08"HWADDR_PRIx
")",
2740 /* Setup a load limit for the ramdisk leaving room for SLOF and FDT */
2741 load_limit
= MIN(spapr
->rma_size
, RTAS_MAX_ADDR
) - FW_OVERHEAD
;
2744 * VSMT must be set in order to be able to compute VCPU ids, ie to
2745 * call spapr_max_server_number() or spapr_vcpu_id().
2747 spapr_set_vsmt_mode(spapr
, &error_fatal
);
2749 /* Set up Interrupt Controller before we create the VCPUs */
2750 spapr_irq_init(spapr
, &error_fatal
);
2752 /* Set up containers for ibm,client-architecture-support negotiated options
2754 spapr
->ov5
= spapr_ovec_new();
2755 spapr
->ov5_cas
= spapr_ovec_new();
2757 if (smc
->dr_lmb_enabled
) {
2758 spapr_ovec_set(spapr
->ov5
, OV5_DRCONF_MEMORY
);
2759 spapr_validate_node_memory(machine
, &error_fatal
);
2762 spapr_ovec_set(spapr
->ov5
, OV5_FORM1_AFFINITY
);
2764 /* advertise support for dedicated HP event source to guests */
2765 if (spapr
->use_hotplug_event_source
) {
2766 spapr_ovec_set(spapr
->ov5
, OV5_HP_EVT
);
2769 /* advertise support for HPT resizing */
2770 if (spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DISABLED
) {
2771 spapr_ovec_set(spapr
->ov5
, OV5_HPT_RESIZE
);
2774 /* advertise support for ibm,dyamic-memory-v2 */
2775 spapr_ovec_set(spapr
->ov5
, OV5_DRMEM_V2
);
2777 /* advertise XIVE on POWER9 machines */
2778 if (spapr
->irq
->xive
) {
2779 spapr_ovec_set(spapr
->ov5
, OV5_XIVE_EXPLOIT
);
2783 spapr_init_cpus(spapr
);
2786 * check we don't have a memory-less/cpu-less NUMA node
2787 * Firmware relies on the existing memory/cpu topology to provide the
2788 * NUMA topology to the kernel.
2789 * And the linux kernel needs to know the NUMA topology at start
2790 * to be able to hotplug CPUs later.
2792 if (machine
->numa_state
->num_nodes
) {
2793 for (i
= 0; i
< machine
->numa_state
->num_nodes
; ++i
) {
2794 /* check for memory-less node */
2795 if (machine
->numa_state
->nodes
[i
].node_mem
== 0) {
2798 /* check for cpu-less node */
2800 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
2801 if (cpu
->node_id
== i
) {
2806 /* memory-less and cpu-less node */
2809 "Memory-less/cpu-less nodes are not supported (node %d)",
2819 * NVLink2-connected GPU RAM needs to be placed on a separate NUMA node.
2820 * We assign a new numa ID per GPU in spapr_pci_collect_nvgpu() which is
2821 * called from vPHB reset handler so we initialize the counter here.
2822 * If no NUMA is configured from the QEMU side, we start from 1 as GPU RAM
2823 * must be equally distant from any other node.
2824 * The final value of spapr->gpu_numa_id is going to be written to
2825 * max-associativity-domains in spapr_build_fdt().
2827 spapr
->gpu_numa_id
= MAX(1, machine
->numa_state
->num_nodes
);
2829 if ((!kvm_enabled() || kvmppc_has_cap_mmu_radix()) &&
2830 ppc_type_check_compat(machine
->cpu_type
, CPU_POWERPC_LOGICAL_3_00
, 0,
2831 spapr
->max_compat_pvr
)) {
2832 /* KVM and TCG always allow GTSE with radix... */
2833 spapr_ovec_set(spapr
->ov5
, OV5_MMU_RADIX_GTSE
);
2835 /* ... but not with hash (currently). */
2837 if (kvm_enabled()) {
2838 /* Enable H_LOGICAL_CI_* so SLOF can talk to in-kernel devices */
2839 kvmppc_enable_logical_ci_hcalls();
2840 kvmppc_enable_set_mode_hcall();
2842 /* H_CLEAR_MOD/_REF are mandatory in PAPR, but off by default */
2843 kvmppc_enable_clear_ref_mod_hcalls();
2845 /* Enable H_PAGE_INIT */
2846 kvmppc_enable_h_page_init();
2850 memory_region_allocate_system_memory(ram
, NULL
, "ppc_spapr.ram",
2852 memory_region_add_subregion(sysmem
, 0, ram
);
2854 /* always allocate the device memory information */
2855 machine
->device_memory
= g_malloc0(sizeof(*machine
->device_memory
));
2857 /* initialize hotplug memory address space */
2858 if (machine
->ram_size
< machine
->maxram_size
) {
2859 ram_addr_t device_mem_size
= machine
->maxram_size
- machine
->ram_size
;
2861 * Limit the number of hotpluggable memory slots to half the number
2862 * slots that KVM supports, leaving the other half for PCI and other
2863 * devices. However ensure that number of slots doesn't drop below 32.
2865 int max_memslots
= kvm_enabled() ? kvm_get_max_memslots() / 2 :
2866 SPAPR_MAX_RAM_SLOTS
;
2868 if (max_memslots
< SPAPR_MAX_RAM_SLOTS
) {
2869 max_memslots
= SPAPR_MAX_RAM_SLOTS
;
2871 if (machine
->ram_slots
> max_memslots
) {
2872 error_report("Specified number of memory slots %"
2873 PRIu64
" exceeds max supported %d",
2874 machine
->ram_slots
, max_memslots
);
2878 machine
->device_memory
->base
= ROUND_UP(machine
->ram_size
,
2879 SPAPR_DEVICE_MEM_ALIGN
);
2880 memory_region_init(&machine
->device_memory
->mr
, OBJECT(spapr
),
2881 "device-memory", device_mem_size
);
2882 memory_region_add_subregion(sysmem
, machine
->device_memory
->base
,
2883 &machine
->device_memory
->mr
);
2886 if (smc
->dr_lmb_enabled
) {
2887 spapr_create_lmb_dr_connectors(spapr
);
2890 /* Set up RTAS event infrastructure */
2891 spapr_events_init(spapr
);
2893 /* Set up the RTC RTAS interfaces */
2894 spapr_rtc_create(spapr
);
2896 /* Set up VIO bus */
2897 spapr
->vio_bus
= spapr_vio_bus_init();
2899 for (i
= 0; i
< serial_max_hds(); i
++) {
2901 spapr_vty_create(spapr
->vio_bus
, serial_hd(i
));
2905 /* We always have at least the nvram device on VIO */
2906 spapr_create_nvram(spapr
);
2909 * Setup hotplug / dynamic-reconfiguration connectors. top-level
2910 * connectors (described in root DT node's "ibm,drc-types" property)
2911 * are pre-initialized here. additional child connectors (such as
2912 * connectors for a PHBs PCI slots) are added as needed during their
2913 * parent's realization.
2915 if (smc
->dr_phb_enabled
) {
2916 for (i
= 0; i
< SPAPR_MAX_PHBS
; i
++) {
2917 spapr_dr_connector_new(OBJECT(machine
), TYPE_SPAPR_DRC_PHB
, i
);
2922 spapr_pci_rtas_init();
2924 phb
= spapr_create_default_phb();
2926 for (i
= 0; i
< nb_nics
; i
++) {
2927 NICInfo
*nd
= &nd_table
[i
];
2930 nd
->model
= g_strdup("spapr-vlan");
2933 if (g_str_equal(nd
->model
, "spapr-vlan") ||
2934 g_str_equal(nd
->model
, "ibmveth")) {
2935 spapr_vlan_create(spapr
->vio_bus
, nd
);
2937 pci_nic_init_nofail(&nd_table
[i
], phb
->bus
, nd
->model
, NULL
);
2941 for (i
= 0; i
<= drive_get_max_bus(IF_SCSI
); i
++) {
2942 spapr_vscsi_create(spapr
->vio_bus
);
2946 if (spapr_vga_init(phb
->bus
, &error_fatal
)) {
2947 spapr
->has_graphics
= true;
2948 machine
->usb
|= defaults_enabled() && !machine
->usb_disabled
;
2952 if (smc
->use_ohci_by_default
) {
2953 pci_create_simple(phb
->bus
, -1, "pci-ohci");
2955 pci_create_simple(phb
->bus
, -1, "nec-usb-xhci");
2958 if (spapr
->has_graphics
) {
2959 USBBus
*usb_bus
= usb_bus_find(-1);
2961 usb_create_simple(usb_bus
, "usb-kbd");
2962 usb_create_simple(usb_bus
, "usb-mouse");
2966 if (spapr
->rma_size
< (MIN_RMA_SLOF
* MiB
)) {
2968 "pSeries SLOF firmware requires >= %ldM guest RMA (Real Mode Area memory)",
2973 if (kernel_filename
) {
2974 uint64_t lowaddr
= 0;
2976 spapr
->kernel_size
= load_elf(kernel_filename
, NULL
,
2977 translate_kernel_address
, NULL
,
2978 NULL
, &lowaddr
, NULL
, 1,
2979 PPC_ELF_MACHINE
, 0, 0);
2980 if (spapr
->kernel_size
== ELF_LOAD_WRONG_ENDIAN
) {
2981 spapr
->kernel_size
= load_elf(kernel_filename
, NULL
,
2982 translate_kernel_address
, NULL
, NULL
,
2983 &lowaddr
, NULL
, 0, PPC_ELF_MACHINE
,
2985 spapr
->kernel_le
= spapr
->kernel_size
> 0;
2987 if (spapr
->kernel_size
< 0) {
2988 error_report("error loading %s: %s", kernel_filename
,
2989 load_elf_strerror(spapr
->kernel_size
));
2994 if (initrd_filename
) {
2995 /* Try to locate the initrd in the gap between the kernel
2996 * and the firmware. Add a bit of space just in case
2998 spapr
->initrd_base
= (KERNEL_LOAD_ADDR
+ spapr
->kernel_size
2999 + 0x1ffff) & ~0xffff;
3000 spapr
->initrd_size
= load_image_targphys(initrd_filename
,
3003 - spapr
->initrd_base
);
3004 if (spapr
->initrd_size
< 0) {
3005 error_report("could not load initial ram disk '%s'",
3012 if (bios_name
== NULL
) {
3013 bios_name
= FW_FILE_NAME
;
3015 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
3017 error_report("Could not find LPAR firmware '%s'", bios_name
);
3020 fw_size
= load_image_targphys(filename
, 0, FW_MAX_SIZE
);
3022 error_report("Could not load LPAR firmware '%s'", filename
);
3027 /* FIXME: Should register things through the MachineState's qdev
3028 * interface, this is a legacy from the sPAPREnvironment structure
3029 * which predated MachineState but had a similar function */
3030 vmstate_register(NULL
, 0, &vmstate_spapr
, spapr
);
3031 register_savevm_live("spapr/htab", -1, 1,
3032 &savevm_htab_handlers
, spapr
);
3034 qbus_set_hotplug_handler(sysbus_get_default(), OBJECT(machine
),
3037 qemu_register_boot_set(spapr_boot_set
, spapr
);
3040 * Nothing needs to be done to resume a suspended guest because
3041 * suspending does not change the machine state, so no need for
3042 * a ->wakeup method.
3044 qemu_register_wakeup_support();
3046 if (kvm_enabled()) {
3047 /* to stop and start vmclock */
3048 qemu_add_vm_change_state_handler(cpu_ppc_clock_vm_state_change
,
3051 kvmppc_spapr_enable_inkernel_multitce();
3055 static int spapr_kvm_type(MachineState
*machine
, const char *vm_type
)
3061 if (!strcmp(vm_type
, "HV")) {
3065 if (!strcmp(vm_type
, "PR")) {
3069 error_report("Unknown kvm-type specified '%s'", vm_type
);
3074 * Implementation of an interface to adjust firmware path
3075 * for the bootindex property handling.
3077 static char *spapr_get_fw_dev_path(FWPathProvider
*p
, BusState
*bus
,
3080 #define CAST(type, obj, name) \
3081 ((type *)object_dynamic_cast(OBJECT(obj), (name)))
3082 SCSIDevice
*d
= CAST(SCSIDevice
, dev
, TYPE_SCSI_DEVICE
);
3083 SpaprPhbState
*phb
= CAST(SpaprPhbState
, dev
, TYPE_SPAPR_PCI_HOST_BRIDGE
);
3084 VHostSCSICommon
*vsc
= CAST(VHostSCSICommon
, dev
, TYPE_VHOST_SCSI_COMMON
);
3087 void *spapr
= CAST(void, bus
->parent
, "spapr-vscsi");
3088 VirtIOSCSI
*virtio
= CAST(VirtIOSCSI
, bus
->parent
, TYPE_VIRTIO_SCSI
);
3089 USBDevice
*usb
= CAST(USBDevice
, bus
->parent
, TYPE_USB_DEVICE
);
3093 * Replace "channel@0/disk@0,0" with "disk@8000000000000000":
3094 * In the top 16 bits of the 64-bit LUN, we use SRP luns of the form
3095 * 0x8000 | (target << 8) | (bus << 5) | lun
3096 * (see the "Logical unit addressing format" table in SAM5)
3098 unsigned id
= 0x8000 | (d
->id
<< 8) | (d
->channel
<< 5) | d
->lun
;
3099 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
3100 (uint64_t)id
<< 48);
3101 } else if (virtio
) {
3103 * We use SRP luns of the form 01000000 | (target << 8) | lun
3104 * in the top 32 bits of the 64-bit LUN
3105 * Note: the quote above is from SLOF and it is wrong,
3106 * the actual binding is:
3107 * swap 0100 or 10 << or 20 << ( target lun-id -- srplun )
3109 unsigned id
= 0x1000000 | (d
->id
<< 16) | d
->lun
;
3110 if (d
->lun
>= 256) {
3111 /* Use the LUN "flat space addressing method" */
3114 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
3115 (uint64_t)id
<< 32);
3118 * We use SRP luns of the form 01000000 | (usb-port << 16) | lun
3119 * in the top 32 bits of the 64-bit LUN
3121 unsigned usb_port
= atoi(usb
->port
->path
);
3122 unsigned id
= 0x1000000 | (usb_port
<< 16) | d
->lun
;
3123 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
3124 (uint64_t)id
<< 32);
3129 * SLOF probes the USB devices, and if it recognizes that the device is a
3130 * storage device, it changes its name to "storage" instead of "usb-host",
3131 * and additionally adds a child node for the SCSI LUN, so the correct
3132 * boot path in SLOF is something like .../storage@1/disk@xxx" instead.
3134 if (strcmp("usb-host", qdev_fw_name(dev
)) == 0) {
3135 USBDevice
*usbdev
= CAST(USBDevice
, dev
, TYPE_USB_DEVICE
);
3136 if (usb_host_dev_is_scsi_storage(usbdev
)) {
3137 return g_strdup_printf("storage@%s/disk", usbdev
->port
->path
);
3142 /* Replace "pci" with "pci@800000020000000" */
3143 return g_strdup_printf("pci@%"PRIX64
, phb
->buid
);
3147 /* Same logic as virtio above */
3148 unsigned id
= 0x1000000 | (vsc
->target
<< 16) | vsc
->lun
;
3149 return g_strdup_printf("disk@%"PRIX64
, (uint64_t)id
<< 32);
3152 if (g_str_equal("pci-bridge", qdev_fw_name(dev
))) {
3153 /* SLOF uses "pci" instead of "pci-bridge" for PCI bridges */
3154 PCIDevice
*pcidev
= CAST(PCIDevice
, dev
, TYPE_PCI_DEVICE
);
3155 return g_strdup_printf("pci@%x", PCI_SLOT(pcidev
->devfn
));
3161 static char *spapr_get_kvm_type(Object
*obj
, Error
**errp
)
3163 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3165 return g_strdup(spapr
->kvm_type
);
3168 static void spapr_set_kvm_type(Object
*obj
, const char *value
, Error
**errp
)
3170 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3172 g_free(spapr
->kvm_type
);
3173 spapr
->kvm_type
= g_strdup(value
);
3176 static bool spapr_get_modern_hotplug_events(Object
*obj
, Error
**errp
)
3178 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3180 return spapr
->use_hotplug_event_source
;
3183 static void spapr_set_modern_hotplug_events(Object
*obj
, bool value
,
3186 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3188 spapr
->use_hotplug_event_source
= value
;
3191 static bool spapr_get_msix_emulation(Object
*obj
, Error
**errp
)
3196 static char *spapr_get_resize_hpt(Object
*obj
, Error
**errp
)
3198 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3200 switch (spapr
->resize_hpt
) {
3201 case SPAPR_RESIZE_HPT_DEFAULT
:
3202 return g_strdup("default");
3203 case SPAPR_RESIZE_HPT_DISABLED
:
3204 return g_strdup("disabled");
3205 case SPAPR_RESIZE_HPT_ENABLED
:
3206 return g_strdup("enabled");
3207 case SPAPR_RESIZE_HPT_REQUIRED
:
3208 return g_strdup("required");
3210 g_assert_not_reached();
3213 static void spapr_set_resize_hpt(Object
*obj
, const char *value
, Error
**errp
)
3215 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3217 if (strcmp(value
, "default") == 0) {
3218 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_DEFAULT
;
3219 } else if (strcmp(value
, "disabled") == 0) {
3220 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_DISABLED
;
3221 } else if (strcmp(value
, "enabled") == 0) {
3222 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_ENABLED
;
3223 } else if (strcmp(value
, "required") == 0) {
3224 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_REQUIRED
;
3226 error_setg(errp
, "Bad value for \"resize-hpt\" property");
3230 static void spapr_get_vsmt(Object
*obj
, Visitor
*v
, const char *name
,
3231 void *opaque
, Error
**errp
)
3233 visit_type_uint32(v
, name
, (uint32_t *)opaque
, errp
);
3236 static void spapr_set_vsmt(Object
*obj
, Visitor
*v
, const char *name
,
3237 void *opaque
, Error
**errp
)
3239 visit_type_uint32(v
, name
, (uint32_t *)opaque
, errp
);
3242 static char *spapr_get_ic_mode(Object
*obj
, Error
**errp
)
3244 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3246 if (spapr
->irq
== &spapr_irq_xics_legacy
) {
3247 return g_strdup("legacy");
3248 } else if (spapr
->irq
== &spapr_irq_xics
) {
3249 return g_strdup("xics");
3250 } else if (spapr
->irq
== &spapr_irq_xive
) {
3251 return g_strdup("xive");
3252 } else if (spapr
->irq
== &spapr_irq_dual
) {
3253 return g_strdup("dual");
3255 g_assert_not_reached();
3258 static void spapr_set_ic_mode(Object
*obj
, const char *value
, Error
**errp
)
3260 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3262 if (SPAPR_MACHINE_GET_CLASS(spapr
)->legacy_irq_allocation
) {
3263 error_setg(errp
, "This machine only uses the legacy XICS backend, don't pass ic-mode");
3267 /* The legacy IRQ backend can not be set */
3268 if (strcmp(value
, "xics") == 0) {
3269 spapr
->irq
= &spapr_irq_xics
;
3270 } else if (strcmp(value
, "xive") == 0) {
3271 spapr
->irq
= &spapr_irq_xive
;
3272 } else if (strcmp(value
, "dual") == 0) {
3273 spapr
->irq
= &spapr_irq_dual
;
3275 error_setg(errp
, "Bad value for \"ic-mode\" property");
3279 static char *spapr_get_host_model(Object
*obj
, Error
**errp
)
3281 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3283 return g_strdup(spapr
->host_model
);
3286 static void spapr_set_host_model(Object
*obj
, const char *value
, Error
**errp
)
3288 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3290 g_free(spapr
->host_model
);
3291 spapr
->host_model
= g_strdup(value
);
3294 static char *spapr_get_host_serial(Object
*obj
, Error
**errp
)
3296 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3298 return g_strdup(spapr
->host_serial
);
3301 static void spapr_set_host_serial(Object
*obj
, const char *value
, Error
**errp
)
3303 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3305 g_free(spapr
->host_serial
);
3306 spapr
->host_serial
= g_strdup(value
);
3309 static void spapr_instance_init(Object
*obj
)
3311 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3312 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
3314 spapr
->htab_fd
= -1;
3315 spapr
->use_hotplug_event_source
= true;
3316 object_property_add_str(obj
, "kvm-type",
3317 spapr_get_kvm_type
, spapr_set_kvm_type
, NULL
);
3318 object_property_set_description(obj
, "kvm-type",
3319 "Specifies the KVM virtualization mode (HV, PR)",
3321 object_property_add_bool(obj
, "modern-hotplug-events",
3322 spapr_get_modern_hotplug_events
,
3323 spapr_set_modern_hotplug_events
,
3325 object_property_set_description(obj
, "modern-hotplug-events",
3326 "Use dedicated hotplug event mechanism in"
3327 " place of standard EPOW events when possible"
3328 " (required for memory hot-unplug support)",
3330 ppc_compat_add_property(obj
, "max-cpu-compat", &spapr
->max_compat_pvr
,
3331 "Maximum permitted CPU compatibility mode",
3334 object_property_add_str(obj
, "resize-hpt",
3335 spapr_get_resize_hpt
, spapr_set_resize_hpt
, NULL
);
3336 object_property_set_description(obj
, "resize-hpt",
3337 "Resizing of the Hash Page Table (enabled, disabled, required)",
3339 object_property_add(obj
, "vsmt", "uint32", spapr_get_vsmt
,
3340 spapr_set_vsmt
, NULL
, &spapr
->vsmt
, &error_abort
);
3341 object_property_set_description(obj
, "vsmt",
3342 "Virtual SMT: KVM behaves as if this were"
3343 " the host's SMT mode", &error_abort
);
3344 object_property_add_bool(obj
, "vfio-no-msix-emulation",
3345 spapr_get_msix_emulation
, NULL
, NULL
);
3347 /* The machine class defines the default interrupt controller mode */
3348 spapr
->irq
= smc
->irq
;
3349 object_property_add_str(obj
, "ic-mode", spapr_get_ic_mode
,
3350 spapr_set_ic_mode
, NULL
);
3351 object_property_set_description(obj
, "ic-mode",
3352 "Specifies the interrupt controller mode (xics, xive, dual)",
3355 object_property_add_str(obj
, "host-model",
3356 spapr_get_host_model
, spapr_set_host_model
,
3358 object_property_set_description(obj
, "host-model",
3359 "Host model to advertise in guest device tree", &error_abort
);
3360 object_property_add_str(obj
, "host-serial",
3361 spapr_get_host_serial
, spapr_set_host_serial
,
3363 object_property_set_description(obj
, "host-serial",
3364 "Host serial number to advertise in guest device tree", &error_abort
);
3367 static void spapr_machine_finalizefn(Object
*obj
)
3369 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3371 g_free(spapr
->kvm_type
);
3374 void spapr_do_system_reset_on_cpu(CPUState
*cs
, run_on_cpu_data arg
)
3376 cpu_synchronize_state(cs
);
3377 ppc_cpu_do_system_reset(cs
);
3380 static void spapr_nmi(NMIState
*n
, int cpu_index
, Error
**errp
)
3385 async_run_on_cpu(cs
, spapr_do_system_reset_on_cpu
, RUN_ON_CPU_NULL
);
3389 int spapr_lmb_dt_populate(SpaprDrc
*drc
, SpaprMachineState
*spapr
,
3390 void *fdt
, int *fdt_start_offset
, Error
**errp
)
3395 addr
= spapr_drc_index(drc
) * SPAPR_MEMORY_BLOCK_SIZE
;
3396 node
= object_property_get_uint(OBJECT(drc
->dev
), PC_DIMM_NODE_PROP
,
3398 *fdt_start_offset
= spapr_populate_memory_node(fdt
, node
, addr
,
3399 SPAPR_MEMORY_BLOCK_SIZE
);
3403 static void spapr_add_lmbs(DeviceState
*dev
, uint64_t addr_start
, uint64_t size
,
3404 bool dedicated_hp_event_source
, Error
**errp
)
3407 uint32_t nr_lmbs
= size
/SPAPR_MEMORY_BLOCK_SIZE
;
3409 uint64_t addr
= addr_start
;
3410 bool hotplugged
= spapr_drc_hotplugged(dev
);
3411 Error
*local_err
= NULL
;
3413 for (i
= 0; i
< nr_lmbs
; i
++) {
3414 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3415 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
3418 spapr_drc_attach(drc
, dev
, &local_err
);
3420 while (addr
> addr_start
) {
3421 addr
-= SPAPR_MEMORY_BLOCK_SIZE
;
3422 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3423 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
3424 spapr_drc_detach(drc
);
3426 error_propagate(errp
, local_err
);
3430 spapr_drc_reset(drc
);
3432 addr
+= SPAPR_MEMORY_BLOCK_SIZE
;
3434 /* send hotplug notification to the
3435 * guest only in case of hotplugged memory
3438 if (dedicated_hp_event_source
) {
3439 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3440 addr_start
/ SPAPR_MEMORY_BLOCK_SIZE
);
3441 spapr_hotplug_req_add_by_count_indexed(SPAPR_DR_CONNECTOR_TYPE_LMB
,
3443 spapr_drc_index(drc
));
3445 spapr_hotplug_req_add_by_count(SPAPR_DR_CONNECTOR_TYPE_LMB
,
3451 static void spapr_memory_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3454 Error
*local_err
= NULL
;
3455 SpaprMachineState
*ms
= SPAPR_MACHINE(hotplug_dev
);
3456 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
3457 uint64_t size
, addr
;
3459 size
= memory_device_get_region_size(MEMORY_DEVICE(dev
), &error_abort
);
3461 pc_dimm_plug(dimm
, MACHINE(ms
), &local_err
);
3466 addr
= object_property_get_uint(OBJECT(dimm
),
3467 PC_DIMM_ADDR_PROP
, &local_err
);
3472 spapr_add_lmbs(dev
, addr
, size
, spapr_ovec_test(ms
->ov5_cas
, OV5_HP_EVT
),
3481 pc_dimm_unplug(dimm
, MACHINE(ms
));
3483 error_propagate(errp
, local_err
);
3486 static void spapr_memory_pre_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3489 const SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(hotplug_dev
);
3490 SpaprMachineState
*spapr
= SPAPR_MACHINE(hotplug_dev
);
3491 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
3492 Error
*local_err
= NULL
;
3497 if (!smc
->dr_lmb_enabled
) {
3498 error_setg(errp
, "Memory hotplug not supported for this machine");
3502 size
= memory_device_get_region_size(MEMORY_DEVICE(dimm
), &local_err
);
3504 error_propagate(errp
, local_err
);
3508 if (size
% SPAPR_MEMORY_BLOCK_SIZE
) {
3509 error_setg(errp
, "Hotplugged memory size must be a multiple of "
3510 "%" PRIu64
" MB", SPAPR_MEMORY_BLOCK_SIZE
/ MiB
);
3514 memdev
= object_property_get_link(OBJECT(dimm
), PC_DIMM_MEMDEV_PROP
,
3516 pagesize
= host_memory_backend_pagesize(MEMORY_BACKEND(memdev
));
3517 spapr_check_pagesize(spapr
, pagesize
, &local_err
);
3519 error_propagate(errp
, local_err
);
3523 pc_dimm_pre_plug(dimm
, MACHINE(hotplug_dev
), NULL
, errp
);
3526 struct SpaprDimmState
{
3529 QTAILQ_ENTRY(SpaprDimmState
) next
;
3532 static SpaprDimmState
*spapr_pending_dimm_unplugs_find(SpaprMachineState
*s
,
3535 SpaprDimmState
*dimm_state
= NULL
;
3537 QTAILQ_FOREACH(dimm_state
, &s
->pending_dimm_unplugs
, next
) {
3538 if (dimm_state
->dimm
== dimm
) {
3545 static SpaprDimmState
*spapr_pending_dimm_unplugs_add(SpaprMachineState
*spapr
,
3549 SpaprDimmState
*ds
= NULL
;
3552 * If this request is for a DIMM whose removal had failed earlier
3553 * (due to guest's refusal to remove the LMBs), we would have this
3554 * dimm already in the pending_dimm_unplugs list. In that
3555 * case don't add again.
3557 ds
= spapr_pending_dimm_unplugs_find(spapr
, dimm
);
3559 ds
= g_malloc0(sizeof(SpaprDimmState
));
3560 ds
->nr_lmbs
= nr_lmbs
;
3562 QTAILQ_INSERT_HEAD(&spapr
->pending_dimm_unplugs
, ds
, next
);
3567 static void spapr_pending_dimm_unplugs_remove(SpaprMachineState
*spapr
,
3568 SpaprDimmState
*dimm_state
)
3570 QTAILQ_REMOVE(&spapr
->pending_dimm_unplugs
, dimm_state
, next
);
3574 static SpaprDimmState
*spapr_recover_pending_dimm_state(SpaprMachineState
*ms
,
3578 uint64_t size
= memory_device_get_region_size(MEMORY_DEVICE(dimm
),
3580 uint32_t nr_lmbs
= size
/ SPAPR_MEMORY_BLOCK_SIZE
;
3581 uint32_t avail_lmbs
= 0;
3582 uint64_t addr_start
, addr
;
3585 addr_start
= object_property_get_int(OBJECT(dimm
), PC_DIMM_ADDR_PROP
,
3589 for (i
= 0; i
< nr_lmbs
; i
++) {
3590 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3591 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
3596 addr
+= SPAPR_MEMORY_BLOCK_SIZE
;
3599 return spapr_pending_dimm_unplugs_add(ms
, avail_lmbs
, dimm
);
3602 /* Callback to be called during DRC release. */
3603 void spapr_lmb_release(DeviceState
*dev
)
3605 HotplugHandler
*hotplug_ctrl
= qdev_get_hotplug_handler(dev
);
3606 SpaprMachineState
*spapr
= SPAPR_MACHINE(hotplug_ctrl
);
3607 SpaprDimmState
*ds
= spapr_pending_dimm_unplugs_find(spapr
, PC_DIMM(dev
));
3609 /* This information will get lost if a migration occurs
3610 * during the unplug process. In this case recover it. */
3612 ds
= spapr_recover_pending_dimm_state(spapr
, PC_DIMM(dev
));
3614 /* The DRC being examined by the caller at least must be counted */
3615 g_assert(ds
->nr_lmbs
);
3618 if (--ds
->nr_lmbs
) {
3623 * Now that all the LMBs have been removed by the guest, call the
3624 * unplug handler chain. This can never fail.
3626 hotplug_handler_unplug(hotplug_ctrl
, dev
, &error_abort
);
3627 object_unparent(OBJECT(dev
));
3630 static void spapr_memory_unplug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
)
3632 SpaprMachineState
*spapr
= SPAPR_MACHINE(hotplug_dev
);
3633 SpaprDimmState
*ds
= spapr_pending_dimm_unplugs_find(spapr
, PC_DIMM(dev
));
3635 pc_dimm_unplug(PC_DIMM(dev
), MACHINE(hotplug_dev
));
3636 object_property_set_bool(OBJECT(dev
), false, "realized", NULL
);
3637 spapr_pending_dimm_unplugs_remove(spapr
, ds
);
3640 static void spapr_memory_unplug_request(HotplugHandler
*hotplug_dev
,
3641 DeviceState
*dev
, Error
**errp
)
3643 SpaprMachineState
*spapr
= SPAPR_MACHINE(hotplug_dev
);
3644 Error
*local_err
= NULL
;
3645 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
3647 uint64_t size
, addr_start
, addr
;
3651 size
= memory_device_get_region_size(MEMORY_DEVICE(dimm
), &error_abort
);
3652 nr_lmbs
= size
/ SPAPR_MEMORY_BLOCK_SIZE
;
3654 addr_start
= object_property_get_uint(OBJECT(dimm
), PC_DIMM_ADDR_PROP
,
3661 * An existing pending dimm state for this DIMM means that there is an
3662 * unplug operation in progress, waiting for the spapr_lmb_release
3663 * callback to complete the job (BQL can't cover that far). In this case,
3664 * bail out to avoid detaching DRCs that were already released.
3666 if (spapr_pending_dimm_unplugs_find(spapr
, dimm
)) {
3667 error_setg(&local_err
,
3668 "Memory unplug already in progress for device %s",
3673 spapr_pending_dimm_unplugs_add(spapr
, nr_lmbs
, dimm
);
3676 for (i
= 0; i
< nr_lmbs
; i
++) {
3677 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3678 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
3681 spapr_drc_detach(drc
);
3682 addr
+= SPAPR_MEMORY_BLOCK_SIZE
;
3685 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3686 addr_start
/ SPAPR_MEMORY_BLOCK_SIZE
);
3687 spapr_hotplug_req_remove_by_count_indexed(SPAPR_DR_CONNECTOR_TYPE_LMB
,
3688 nr_lmbs
, spapr_drc_index(drc
));
3690 error_propagate(errp
, local_err
);
3693 /* Callback to be called during DRC release. */
3694 void spapr_core_release(DeviceState
*dev
)
3696 HotplugHandler
*hotplug_ctrl
= qdev_get_hotplug_handler(dev
);
3698 /* Call the unplug handler chain. This can never fail. */
3699 hotplug_handler_unplug(hotplug_ctrl
, dev
, &error_abort
);
3700 object_unparent(OBJECT(dev
));
3703 static void spapr_core_unplug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
)
3705 MachineState
*ms
= MACHINE(hotplug_dev
);
3706 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(ms
);
3707 CPUCore
*cc
= CPU_CORE(dev
);
3708 CPUArchId
*core_slot
= spapr_find_cpu_slot(ms
, cc
->core_id
, NULL
);
3710 if (smc
->pre_2_10_has_unused_icps
) {
3711 SpaprCpuCore
*sc
= SPAPR_CPU_CORE(OBJECT(dev
));
3714 for (i
= 0; i
< cc
->nr_threads
; i
++) {
3715 CPUState
*cs
= CPU(sc
->threads
[i
]);
3717 pre_2_10_vmstate_register_dummy_icp(cs
->cpu_index
);
3722 core_slot
->cpu
= NULL
;
3723 object_property_set_bool(OBJECT(dev
), false, "realized", NULL
);
3727 void spapr_core_unplug_request(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3730 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
3733 CPUCore
*cc
= CPU_CORE(dev
);
3735 if (!spapr_find_cpu_slot(MACHINE(hotplug_dev
), cc
->core_id
, &index
)) {
3736 error_setg(errp
, "Unable to find CPU core with core-id: %d",
3741 error_setg(errp
, "Boot CPU core may not be unplugged");
3745 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_CPU
,
3746 spapr_vcpu_id(spapr
, cc
->core_id
));
3749 if (!spapr_drc_unplug_requested(drc
)) {
3750 spapr_drc_detach(drc
);
3751 spapr_hotplug_req_remove_by_index(drc
);
3755 int spapr_core_dt_populate(SpaprDrc
*drc
, SpaprMachineState
*spapr
,
3756 void *fdt
, int *fdt_start_offset
, Error
**errp
)
3758 SpaprCpuCore
*core
= SPAPR_CPU_CORE(drc
->dev
);
3759 CPUState
*cs
= CPU(core
->threads
[0]);
3760 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
3761 DeviceClass
*dc
= DEVICE_GET_CLASS(cs
);
3762 int id
= spapr_get_vcpu_id(cpu
);
3766 nodename
= g_strdup_printf("%s@%x", dc
->fw_name
, id
);
3767 offset
= fdt_add_subnode(fdt
, 0, nodename
);
3770 spapr_populate_cpu_dt(cs
, fdt
, offset
, spapr
);
3772 *fdt_start_offset
= offset
;
3776 static void spapr_core_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3779 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
3780 MachineClass
*mc
= MACHINE_GET_CLASS(spapr
);
3781 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
3782 SpaprCpuCore
*core
= SPAPR_CPU_CORE(OBJECT(dev
));
3783 CPUCore
*cc
= CPU_CORE(dev
);
3786 Error
*local_err
= NULL
;
3787 CPUArchId
*core_slot
;
3789 bool hotplugged
= spapr_drc_hotplugged(dev
);
3792 core_slot
= spapr_find_cpu_slot(MACHINE(hotplug_dev
), cc
->core_id
, &index
);
3794 error_setg(errp
, "Unable to find CPU core with core-id: %d",
3798 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_CPU
,
3799 spapr_vcpu_id(spapr
, cc
->core_id
));
3801 g_assert(drc
|| !mc
->has_hotpluggable_cpus
);
3804 spapr_drc_attach(drc
, dev
, &local_err
);
3806 error_propagate(errp
, local_err
);
3812 * Send hotplug notification interrupt to the guest only
3813 * in case of hotplugged CPUs.
3815 spapr_hotplug_req_add_by_index(drc
);
3817 spapr_drc_reset(drc
);
3821 core_slot
->cpu
= OBJECT(dev
);
3823 if (smc
->pre_2_10_has_unused_icps
) {
3824 for (i
= 0; i
< cc
->nr_threads
; i
++) {
3825 cs
= CPU(core
->threads
[i
]);
3826 pre_2_10_vmstate_unregister_dummy_icp(cs
->cpu_index
);
3831 * Set compatibility mode to match the boot CPU, which was either set
3832 * by the machine reset code or by CAS.
3835 for (i
= 0; i
< cc
->nr_threads
; i
++) {
3836 ppc_set_compat(core
->threads
[i
], POWERPC_CPU(first_cpu
)->compat_pvr
,
3839 error_propagate(errp
, local_err
);
3846 static void spapr_core_pre_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3849 MachineState
*machine
= MACHINE(OBJECT(hotplug_dev
));
3850 MachineClass
*mc
= MACHINE_GET_CLASS(hotplug_dev
);
3851 Error
*local_err
= NULL
;
3852 CPUCore
*cc
= CPU_CORE(dev
);
3853 const char *base_core_type
= spapr_get_cpu_core_type(machine
->cpu_type
);
3854 const char *type
= object_get_typename(OBJECT(dev
));
3855 CPUArchId
*core_slot
;
3857 unsigned int smp_threads
= machine
->smp
.threads
;
3859 if (dev
->hotplugged
&& !mc
->has_hotpluggable_cpus
) {
3860 error_setg(&local_err
, "CPU hotplug not supported for this machine");
3864 if (strcmp(base_core_type
, type
)) {
3865 error_setg(&local_err
, "CPU core type should be %s", base_core_type
);
3869 if (cc
->core_id
% smp_threads
) {
3870 error_setg(&local_err
, "invalid core id %d", cc
->core_id
);
3875 * In general we should have homogeneous threads-per-core, but old
3876 * (pre hotplug support) machine types allow the last core to have
3877 * reduced threads as a compatibility hack for when we allowed
3878 * total vcpus not a multiple of threads-per-core.
3880 if (mc
->has_hotpluggable_cpus
&& (cc
->nr_threads
!= smp_threads
)) {
3881 error_setg(&local_err
, "invalid nr-threads %d, must be %d",
3882 cc
->nr_threads
, smp_threads
);
3886 core_slot
= spapr_find_cpu_slot(MACHINE(hotplug_dev
), cc
->core_id
, &index
);
3888 error_setg(&local_err
, "core id %d out of range", cc
->core_id
);
3892 if (core_slot
->cpu
) {
3893 error_setg(&local_err
, "core %d already populated", cc
->core_id
);
3897 numa_cpu_pre_plug(core_slot
, dev
, &local_err
);
3900 error_propagate(errp
, local_err
);
3903 int spapr_phb_dt_populate(SpaprDrc
*drc
, SpaprMachineState
*spapr
,
3904 void *fdt
, int *fdt_start_offset
, Error
**errp
)
3906 SpaprPhbState
*sphb
= SPAPR_PCI_HOST_BRIDGE(drc
->dev
);
3909 intc_phandle
= spapr_irq_get_phandle(spapr
, spapr
->fdt_blob
, errp
);
3910 if (intc_phandle
<= 0) {
3914 if (spapr_dt_phb(spapr
, sphb
, intc_phandle
, fdt
, fdt_start_offset
)) {
3915 error_setg(errp
, "unable to create FDT node for PHB %d", sphb
->index
);
3919 /* generally SLOF creates these, for hotplug it's up to QEMU */
3920 _FDT(fdt_setprop_string(fdt
, *fdt_start_offset
, "name", "pci"));
3925 static void spapr_phb_pre_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3928 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
3929 SpaprPhbState
*sphb
= SPAPR_PCI_HOST_BRIDGE(dev
);
3930 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
3931 const unsigned windows_supported
= spapr_phb_windows_supported(sphb
);
3933 if (dev
->hotplugged
&& !smc
->dr_phb_enabled
) {
3934 error_setg(errp
, "PHB hotplug not supported for this machine");
3938 if (sphb
->index
== (uint32_t)-1) {
3939 error_setg(errp
, "\"index\" for PAPR PHB is mandatory");
3944 * This will check that sphb->index doesn't exceed the maximum number of
3945 * PHBs for the current machine type.
3947 smc
->phb_placement(spapr
, sphb
->index
,
3948 &sphb
->buid
, &sphb
->io_win_addr
,
3949 &sphb
->mem_win_addr
, &sphb
->mem64_win_addr
,
3950 windows_supported
, sphb
->dma_liobn
,
3951 &sphb
->nv2_gpa_win_addr
, &sphb
->nv2_atsd_win_addr
,
3955 static void spapr_phb_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3958 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
3959 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
3960 SpaprPhbState
*sphb
= SPAPR_PCI_HOST_BRIDGE(dev
);
3962 bool hotplugged
= spapr_drc_hotplugged(dev
);
3963 Error
*local_err
= NULL
;
3965 if (!smc
->dr_phb_enabled
) {
3969 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_PHB
, sphb
->index
);
3970 /* hotplug hooks should check it's enabled before getting this far */
3973 spapr_drc_attach(drc
, DEVICE(dev
), &local_err
);
3975 error_propagate(errp
, local_err
);
3980 spapr_hotplug_req_add_by_index(drc
);
3982 spapr_drc_reset(drc
);
3986 void spapr_phb_release(DeviceState
*dev
)
3988 HotplugHandler
*hotplug_ctrl
= qdev_get_hotplug_handler(dev
);
3990 hotplug_handler_unplug(hotplug_ctrl
, dev
, &error_abort
);
3991 object_unparent(OBJECT(dev
));
3994 static void spapr_phb_unplug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
)
3996 object_property_set_bool(OBJECT(dev
), false, "realized", NULL
);
3999 static void spapr_phb_unplug_request(HotplugHandler
*hotplug_dev
,
4000 DeviceState
*dev
, Error
**errp
)
4002 SpaprPhbState
*sphb
= SPAPR_PCI_HOST_BRIDGE(dev
);
4005 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_PHB
, sphb
->index
);
4008 if (!spapr_drc_unplug_requested(drc
)) {
4009 spapr_drc_detach(drc
);
4010 spapr_hotplug_req_remove_by_index(drc
);
4014 static void spapr_tpm_proxy_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
4017 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
4018 SpaprTpmProxy
*tpm_proxy
= SPAPR_TPM_PROXY(dev
);
4020 if (spapr
->tpm_proxy
!= NULL
) {
4021 error_setg(errp
, "Only one TPM proxy can be specified for this machine");
4025 spapr
->tpm_proxy
= tpm_proxy
;
4028 static void spapr_tpm_proxy_unplug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
)
4030 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
4032 object_property_set_bool(OBJECT(dev
), false, "realized", NULL
);
4033 object_unparent(OBJECT(dev
));
4034 spapr
->tpm_proxy
= NULL
;
4037 static void spapr_machine_device_plug(HotplugHandler
*hotplug_dev
,
4038 DeviceState
*dev
, Error
**errp
)
4040 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
4041 spapr_memory_plug(hotplug_dev
, dev
, errp
);
4042 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
4043 spapr_core_plug(hotplug_dev
, dev
, errp
);
4044 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_PCI_HOST_BRIDGE
)) {
4045 spapr_phb_plug(hotplug_dev
, dev
, errp
);
4046 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_TPM_PROXY
)) {
4047 spapr_tpm_proxy_plug(hotplug_dev
, dev
, errp
);
4051 static void spapr_machine_device_unplug(HotplugHandler
*hotplug_dev
,
4052 DeviceState
*dev
, Error
**errp
)
4054 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
4055 spapr_memory_unplug(hotplug_dev
, dev
);
4056 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
4057 spapr_core_unplug(hotplug_dev
, dev
);
4058 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_PCI_HOST_BRIDGE
)) {
4059 spapr_phb_unplug(hotplug_dev
, dev
);
4060 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_TPM_PROXY
)) {
4061 spapr_tpm_proxy_unplug(hotplug_dev
, dev
);
4065 static void spapr_machine_device_unplug_request(HotplugHandler
*hotplug_dev
,
4066 DeviceState
*dev
, Error
**errp
)
4068 SpaprMachineState
*sms
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
4069 MachineClass
*mc
= MACHINE_GET_CLASS(sms
);
4070 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4072 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
4073 if (spapr_ovec_test(sms
->ov5_cas
, OV5_HP_EVT
)) {
4074 spapr_memory_unplug_request(hotplug_dev
, dev
, errp
);
4076 /* NOTE: this means there is a window after guest reset, prior to
4077 * CAS negotiation, where unplug requests will fail due to the
4078 * capability not being detected yet. This is a bit different than
4079 * the case with PCI unplug, where the events will be queued and
4080 * eventually handled by the guest after boot
4082 error_setg(errp
, "Memory hot unplug not supported for this guest");
4084 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
4085 if (!mc
->has_hotpluggable_cpus
) {
4086 error_setg(errp
, "CPU hot unplug not supported on this machine");
4089 spapr_core_unplug_request(hotplug_dev
, dev
, errp
);
4090 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_PCI_HOST_BRIDGE
)) {
4091 if (!smc
->dr_phb_enabled
) {
4092 error_setg(errp
, "PHB hot unplug not supported on this machine");
4095 spapr_phb_unplug_request(hotplug_dev
, dev
, errp
);
4096 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_TPM_PROXY
)) {
4097 spapr_tpm_proxy_unplug(hotplug_dev
, dev
);
4101 static void spapr_machine_device_pre_plug(HotplugHandler
*hotplug_dev
,
4102 DeviceState
*dev
, Error
**errp
)
4104 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
4105 spapr_memory_pre_plug(hotplug_dev
, dev
, errp
);
4106 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
4107 spapr_core_pre_plug(hotplug_dev
, dev
, errp
);
4108 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_PCI_HOST_BRIDGE
)) {
4109 spapr_phb_pre_plug(hotplug_dev
, dev
, errp
);
4113 static HotplugHandler
*spapr_get_hotplug_handler(MachineState
*machine
,
4116 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
) ||
4117 object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
) ||
4118 object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_PCI_HOST_BRIDGE
) ||
4119 object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_TPM_PROXY
)) {
4120 return HOTPLUG_HANDLER(machine
);
4122 if (object_dynamic_cast(OBJECT(dev
), TYPE_PCI_DEVICE
)) {
4123 PCIDevice
*pcidev
= PCI_DEVICE(dev
);
4124 PCIBus
*root
= pci_device_root_bus(pcidev
);
4125 SpaprPhbState
*phb
=
4126 (SpaprPhbState
*)object_dynamic_cast(OBJECT(BUS(root
)->parent
),
4127 TYPE_SPAPR_PCI_HOST_BRIDGE
);
4130 return HOTPLUG_HANDLER(phb
);
4136 static CpuInstanceProperties
4137 spapr_cpu_index_to_props(MachineState
*machine
, unsigned cpu_index
)
4139 CPUArchId
*core_slot
;
4140 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
4142 /* make sure possible_cpu are intialized */
4143 mc
->possible_cpu_arch_ids(machine
);
4144 /* get CPU core slot containing thread that matches cpu_index */
4145 core_slot
= spapr_find_cpu_slot(machine
, cpu_index
, NULL
);
4147 return core_slot
->props
;
4150 static int64_t spapr_get_default_cpu_node_id(const MachineState
*ms
, int idx
)
4152 return idx
/ ms
->smp
.cores
% ms
->numa_state
->num_nodes
;
4155 static const CPUArchIdList
*spapr_possible_cpu_arch_ids(MachineState
*machine
)
4158 unsigned int smp_threads
= machine
->smp
.threads
;
4159 unsigned int smp_cpus
= machine
->smp
.cpus
;
4160 const char *core_type
;
4161 int spapr_max_cores
= machine
->smp
.max_cpus
/ smp_threads
;
4162 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
4164 if (!mc
->has_hotpluggable_cpus
) {
4165 spapr_max_cores
= QEMU_ALIGN_UP(smp_cpus
, smp_threads
) / smp_threads
;
4167 if (machine
->possible_cpus
) {
4168 assert(machine
->possible_cpus
->len
== spapr_max_cores
);
4169 return machine
->possible_cpus
;
4172 core_type
= spapr_get_cpu_core_type(machine
->cpu_type
);
4174 error_report("Unable to find sPAPR CPU Core definition");
4178 machine
->possible_cpus
= g_malloc0(sizeof(CPUArchIdList
) +
4179 sizeof(CPUArchId
) * spapr_max_cores
);
4180 machine
->possible_cpus
->len
= spapr_max_cores
;
4181 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
4182 int core_id
= i
* smp_threads
;
4184 machine
->possible_cpus
->cpus
[i
].type
= core_type
;
4185 machine
->possible_cpus
->cpus
[i
].vcpus_count
= smp_threads
;
4186 machine
->possible_cpus
->cpus
[i
].arch_id
= core_id
;
4187 machine
->possible_cpus
->cpus
[i
].props
.has_core_id
= true;
4188 machine
->possible_cpus
->cpus
[i
].props
.core_id
= core_id
;
4190 return machine
->possible_cpus
;
4193 static void spapr_phb_placement(SpaprMachineState
*spapr
, uint32_t index
,
4194 uint64_t *buid
, hwaddr
*pio
,
4195 hwaddr
*mmio32
, hwaddr
*mmio64
,
4196 unsigned n_dma
, uint32_t *liobns
,
4197 hwaddr
*nv2gpa
, hwaddr
*nv2atsd
, Error
**errp
)
4200 * New-style PHB window placement.
4202 * Goals: Gives large (1TiB), naturally aligned 64-bit MMIO window
4203 * for each PHB, in addition to 2GiB 32-bit MMIO and 64kiB PIO
4206 * Some guest kernels can't work with MMIO windows above 1<<46
4207 * (64TiB), so we place up to 31 PHBs in the area 32TiB..64TiB
4209 * 32TiB..(33TiB+1984kiB) contains the 64kiB PIO windows for each
4210 * PHB stacked together. (32TiB+2GiB)..(32TiB+64GiB) contains the
4211 * 2GiB 32-bit MMIO windows for each PHB. Then 33..64TiB has the
4212 * 1TiB 64-bit MMIO windows for each PHB.
4214 const uint64_t base_buid
= 0x800000020000000ULL
;
4217 /* Sanity check natural alignments */
4218 QEMU_BUILD_BUG_ON((SPAPR_PCI_BASE
% SPAPR_PCI_MEM64_WIN_SIZE
) != 0);
4219 QEMU_BUILD_BUG_ON((SPAPR_PCI_LIMIT
% SPAPR_PCI_MEM64_WIN_SIZE
) != 0);
4220 QEMU_BUILD_BUG_ON((SPAPR_PCI_MEM64_WIN_SIZE
% SPAPR_PCI_MEM32_WIN_SIZE
) != 0);
4221 QEMU_BUILD_BUG_ON((SPAPR_PCI_MEM32_WIN_SIZE
% SPAPR_PCI_IO_WIN_SIZE
) != 0);
4222 /* Sanity check bounds */
4223 QEMU_BUILD_BUG_ON((SPAPR_MAX_PHBS
* SPAPR_PCI_IO_WIN_SIZE
) >
4224 SPAPR_PCI_MEM32_WIN_SIZE
);
4225 QEMU_BUILD_BUG_ON((SPAPR_MAX_PHBS
* SPAPR_PCI_MEM32_WIN_SIZE
) >
4226 SPAPR_PCI_MEM64_WIN_SIZE
);
4228 if (index
>= SPAPR_MAX_PHBS
) {
4229 error_setg(errp
, "\"index\" for PAPR PHB is too large (max %llu)",
4230 SPAPR_MAX_PHBS
- 1);
4234 *buid
= base_buid
+ index
;
4235 for (i
= 0; i
< n_dma
; ++i
) {
4236 liobns
[i
] = SPAPR_PCI_LIOBN(index
, i
);
4239 *pio
= SPAPR_PCI_BASE
+ index
* SPAPR_PCI_IO_WIN_SIZE
;
4240 *mmio32
= SPAPR_PCI_BASE
+ (index
+ 1) * SPAPR_PCI_MEM32_WIN_SIZE
;
4241 *mmio64
= SPAPR_PCI_BASE
+ (index
+ 1) * SPAPR_PCI_MEM64_WIN_SIZE
;
4243 *nv2gpa
= SPAPR_PCI_NV2RAM64_WIN_BASE
+ index
* SPAPR_PCI_NV2RAM64_WIN_SIZE
;
4244 *nv2atsd
= SPAPR_PCI_NV2ATSD_WIN_BASE
+ index
* SPAPR_PCI_NV2ATSD_WIN_SIZE
;
4247 static ICSState
*spapr_ics_get(XICSFabric
*dev
, int irq
)
4249 SpaprMachineState
*spapr
= SPAPR_MACHINE(dev
);
4251 return ics_valid_irq(spapr
->ics
, irq
) ? spapr
->ics
: NULL
;
4254 static void spapr_ics_resend(XICSFabric
*dev
)
4256 SpaprMachineState
*spapr
= SPAPR_MACHINE(dev
);
4258 ics_resend(spapr
->ics
);
4261 static ICPState
*spapr_icp_get(XICSFabric
*xi
, int vcpu_id
)
4263 PowerPCCPU
*cpu
= spapr_find_cpu(vcpu_id
);
4265 return cpu
? spapr_cpu_state(cpu
)->icp
: NULL
;
4268 static void spapr_pic_print_info(InterruptStatsProvider
*obj
,
4271 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
4273 spapr_irq_print_info(spapr
, mon
);
4274 monitor_printf(mon
, "irqchip: %s\n",
4275 kvm_irqchip_in_kernel() ? "in-kernel" : "emulated");
4278 int spapr_get_vcpu_id(PowerPCCPU
*cpu
)
4280 return cpu
->vcpu_id
;
4283 void spapr_set_vcpu_id(PowerPCCPU
*cpu
, int cpu_index
, Error
**errp
)
4285 SpaprMachineState
*spapr
= SPAPR_MACHINE(qdev_get_machine());
4286 MachineState
*ms
= MACHINE(spapr
);
4289 vcpu_id
= spapr_vcpu_id(spapr
, cpu_index
);
4291 if (kvm_enabled() && !kvm_vcpu_id_is_valid(vcpu_id
)) {
4292 error_setg(errp
, "Can't create CPU with id %d in KVM", vcpu_id
);
4293 error_append_hint(errp
, "Adjust the number of cpus to %d "
4294 "or try to raise the number of threads per core\n",
4295 vcpu_id
* ms
->smp
.threads
/ spapr
->vsmt
);
4299 cpu
->vcpu_id
= vcpu_id
;
4302 PowerPCCPU
*spapr_find_cpu(int vcpu_id
)
4307 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
4309 if (spapr_get_vcpu_id(cpu
) == vcpu_id
) {
4317 static void spapr_cpu_exec_enter(PPCVirtualHypervisor
*vhyp
, PowerPCCPU
*cpu
)
4319 SpaprCpuState
*spapr_cpu
= spapr_cpu_state(cpu
);
4321 /* These are only called by TCG, KVM maintains dispatch state */
4323 spapr_cpu
->prod
= false;
4324 if (spapr_cpu
->vpa_addr
) {
4325 CPUState
*cs
= CPU(cpu
);
4328 dispatch
= ldl_be_phys(cs
->as
,
4329 spapr_cpu
->vpa_addr
+ VPA_DISPATCH_COUNTER
);
4331 if ((dispatch
& 1) != 0) {
4332 qemu_log_mask(LOG_GUEST_ERROR
,
4333 "VPA: incorrect dispatch counter value for "
4334 "dispatched partition %u, correcting.\n", dispatch
);
4338 spapr_cpu
->vpa_addr
+ VPA_DISPATCH_COUNTER
, dispatch
);
4342 static void spapr_cpu_exec_exit(PPCVirtualHypervisor
*vhyp
, PowerPCCPU
*cpu
)
4344 SpaprCpuState
*spapr_cpu
= spapr_cpu_state(cpu
);
4346 if (spapr_cpu
->vpa_addr
) {
4347 CPUState
*cs
= CPU(cpu
);
4350 dispatch
= ldl_be_phys(cs
->as
,
4351 spapr_cpu
->vpa_addr
+ VPA_DISPATCH_COUNTER
);
4353 if ((dispatch
& 1) != 1) {
4354 qemu_log_mask(LOG_GUEST_ERROR
,
4355 "VPA: incorrect dispatch counter value for "
4356 "preempted partition %u, correcting.\n", dispatch
);
4360 spapr_cpu
->vpa_addr
+ VPA_DISPATCH_COUNTER
, dispatch
);
4364 static void spapr_machine_class_init(ObjectClass
*oc
, void *data
)
4366 MachineClass
*mc
= MACHINE_CLASS(oc
);
4367 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(oc
);
4368 FWPathProviderClass
*fwc
= FW_PATH_PROVIDER_CLASS(oc
);
4369 NMIClass
*nc
= NMI_CLASS(oc
);
4370 HotplugHandlerClass
*hc
= HOTPLUG_HANDLER_CLASS(oc
);
4371 PPCVirtualHypervisorClass
*vhc
= PPC_VIRTUAL_HYPERVISOR_CLASS(oc
);
4372 XICSFabricClass
*xic
= XICS_FABRIC_CLASS(oc
);
4373 InterruptStatsProviderClass
*ispc
= INTERRUPT_STATS_PROVIDER_CLASS(oc
);
4375 mc
->desc
= "pSeries Logical Partition (PAPR compliant)";
4376 mc
->ignore_boot_device_suffixes
= true;
4379 * We set up the default / latest behaviour here. The class_init
4380 * functions for the specific versioned machine types can override
4381 * these details for backwards compatibility
4383 mc
->init
= spapr_machine_init
;
4384 mc
->reset
= spapr_machine_reset
;
4385 mc
->block_default_type
= IF_SCSI
;
4386 mc
->max_cpus
= 1024;
4387 mc
->no_parallel
= 1;
4388 mc
->default_boot_order
= "";
4389 mc
->default_ram_size
= 512 * MiB
;
4390 mc
->default_display
= "std";
4391 mc
->kvm_type
= spapr_kvm_type
;
4392 machine_class_allow_dynamic_sysbus_dev(mc
, TYPE_SPAPR_PCI_HOST_BRIDGE
);
4393 mc
->pci_allow_0_address
= true;
4394 assert(!mc
->get_hotplug_handler
);
4395 mc
->get_hotplug_handler
= spapr_get_hotplug_handler
;
4396 hc
->pre_plug
= spapr_machine_device_pre_plug
;
4397 hc
->plug
= spapr_machine_device_plug
;
4398 mc
->cpu_index_to_instance_props
= spapr_cpu_index_to_props
;
4399 mc
->get_default_cpu_node_id
= spapr_get_default_cpu_node_id
;
4400 mc
->possible_cpu_arch_ids
= spapr_possible_cpu_arch_ids
;
4401 hc
->unplug_request
= spapr_machine_device_unplug_request
;
4402 hc
->unplug
= spapr_machine_device_unplug
;
4404 smc
->dr_lmb_enabled
= true;
4405 smc
->update_dt_enabled
= true;
4406 mc
->default_cpu_type
= POWERPC_CPU_TYPE_NAME("power9_v2.0");
4407 mc
->has_hotpluggable_cpus
= true;
4408 smc
->resize_hpt_default
= SPAPR_RESIZE_HPT_ENABLED
;
4409 fwc
->get_dev_path
= spapr_get_fw_dev_path
;
4410 nc
->nmi_monitor_handler
= spapr_nmi
;
4411 smc
->phb_placement
= spapr_phb_placement
;
4412 vhc
->hypercall
= emulate_spapr_hypercall
;
4413 vhc
->hpt_mask
= spapr_hpt_mask
;
4414 vhc
->map_hptes
= spapr_map_hptes
;
4415 vhc
->unmap_hptes
= spapr_unmap_hptes
;
4416 vhc
->hpte_set_c
= spapr_hpte_set_c
;
4417 vhc
->hpte_set_r
= spapr_hpte_set_r
;
4418 vhc
->get_pate
= spapr_get_pate
;
4419 vhc
->encode_hpt_for_kvm_pr
= spapr_encode_hpt_for_kvm_pr
;
4420 vhc
->cpu_exec_enter
= spapr_cpu_exec_enter
;
4421 vhc
->cpu_exec_exit
= spapr_cpu_exec_exit
;
4422 xic
->ics_get
= spapr_ics_get
;
4423 xic
->ics_resend
= spapr_ics_resend
;
4424 xic
->icp_get
= spapr_icp_get
;
4425 ispc
->print_info
= spapr_pic_print_info
;
4426 /* Force NUMA node memory size to be a multiple of
4427 * SPAPR_MEMORY_BLOCK_SIZE (256M) since that's the granularity
4428 * in which LMBs are represented and hot-added
4430 mc
->numa_mem_align_shift
= 28;
4431 mc
->numa_mem_supported
= true;
4432 mc
->auto_enable_numa
= true;
4434 smc
->default_caps
.caps
[SPAPR_CAP_HTM
] = SPAPR_CAP_OFF
;
4435 smc
->default_caps
.caps
[SPAPR_CAP_VSX
] = SPAPR_CAP_ON
;
4436 smc
->default_caps
.caps
[SPAPR_CAP_DFP
] = SPAPR_CAP_ON
;
4437 smc
->default_caps
.caps
[SPAPR_CAP_CFPC
] = SPAPR_CAP_WORKAROUND
;
4438 smc
->default_caps
.caps
[SPAPR_CAP_SBBC
] = SPAPR_CAP_WORKAROUND
;
4439 smc
->default_caps
.caps
[SPAPR_CAP_IBS
] = SPAPR_CAP_WORKAROUND
;
4440 smc
->default_caps
.caps
[SPAPR_CAP_HPT_MAXPAGESIZE
] = 16; /* 64kiB */
4441 smc
->default_caps
.caps
[SPAPR_CAP_NESTED_KVM_HV
] = SPAPR_CAP_OFF
;
4442 smc
->default_caps
.caps
[SPAPR_CAP_LARGE_DECREMENTER
] = SPAPR_CAP_ON
;
4443 smc
->default_caps
.caps
[SPAPR_CAP_CCF_ASSIST
] = SPAPR_CAP_OFF
;
4444 spapr_caps_add_properties(smc
, &error_abort
);
4445 smc
->irq
= &spapr_irq_dual
;
4446 smc
->dr_phb_enabled
= true;
4447 smc
->linux_pci_probe
= true;
4448 smc
->smp_threads_vsmt
= true;
4449 smc
->nr_xirqs
= SPAPR_NR_XIRQS
;
4452 static const TypeInfo spapr_machine_info
= {
4453 .name
= TYPE_SPAPR_MACHINE
,
4454 .parent
= TYPE_MACHINE
,
4456 .instance_size
= sizeof(SpaprMachineState
),
4457 .instance_init
= spapr_instance_init
,
4458 .instance_finalize
= spapr_machine_finalizefn
,
4459 .class_size
= sizeof(SpaprMachineClass
),
4460 .class_init
= spapr_machine_class_init
,
4461 .interfaces
= (InterfaceInfo
[]) {
4462 { TYPE_FW_PATH_PROVIDER
},
4464 { TYPE_HOTPLUG_HANDLER
},
4465 { TYPE_PPC_VIRTUAL_HYPERVISOR
},
4466 { TYPE_XICS_FABRIC
},
4467 { TYPE_INTERRUPT_STATS_PROVIDER
},
4472 #define DEFINE_SPAPR_MACHINE(suffix, verstr, latest) \
4473 static void spapr_machine_##suffix##_class_init(ObjectClass *oc, \
4476 MachineClass *mc = MACHINE_CLASS(oc); \
4477 spapr_machine_##suffix##_class_options(mc); \
4479 mc->alias = "pseries"; \
4480 mc->is_default = 1; \
4483 static const TypeInfo spapr_machine_##suffix##_info = { \
4484 .name = MACHINE_TYPE_NAME("pseries-" verstr), \
4485 .parent = TYPE_SPAPR_MACHINE, \
4486 .class_init = spapr_machine_##suffix##_class_init, \
4488 static void spapr_machine_register_##suffix(void) \
4490 type_register(&spapr_machine_##suffix##_info); \
4492 type_init(spapr_machine_register_##suffix)
4497 static void spapr_machine_5_0_class_options(MachineClass
*mc
)
4499 /* Defaults for the latest behaviour inherited from the base class */
4502 DEFINE_SPAPR_MACHINE(5_0
, "5.0", true);
4507 static void spapr_machine_4_2_class_options(MachineClass
*mc
)
4509 spapr_machine_5_0_class_options(mc
);
4510 compat_props_add(mc
->compat_props
, hw_compat_4_2
, hw_compat_4_2_len
);
4513 DEFINE_SPAPR_MACHINE(4_2
, "4.2", false);
4518 static void spapr_machine_4_1_class_options(MachineClass
*mc
)
4520 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4521 static GlobalProperty compat
[] = {
4522 /* Only allow 4kiB and 64kiB IOMMU pagesizes */
4523 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "pgsz", "0x11000" },
4526 spapr_machine_4_2_class_options(mc
);
4527 smc
->linux_pci_probe
= false;
4528 smc
->smp_threads_vsmt
= false;
4529 compat_props_add(mc
->compat_props
, hw_compat_4_1
, hw_compat_4_1_len
);
4530 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4533 DEFINE_SPAPR_MACHINE(4_1
, "4.1", false);
4538 static void phb_placement_4_0(SpaprMachineState
*spapr
, uint32_t index
,
4539 uint64_t *buid
, hwaddr
*pio
,
4540 hwaddr
*mmio32
, hwaddr
*mmio64
,
4541 unsigned n_dma
, uint32_t *liobns
,
4542 hwaddr
*nv2gpa
, hwaddr
*nv2atsd
, Error
**errp
)
4544 spapr_phb_placement(spapr
, index
, buid
, pio
, mmio32
, mmio64
, n_dma
, liobns
,
4545 nv2gpa
, nv2atsd
, errp
);
4550 static void spapr_machine_4_0_class_options(MachineClass
*mc
)
4552 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4554 spapr_machine_4_1_class_options(mc
);
4555 compat_props_add(mc
->compat_props
, hw_compat_4_0
, hw_compat_4_0_len
);
4556 smc
->phb_placement
= phb_placement_4_0
;
4557 smc
->irq
= &spapr_irq_xics
;
4558 smc
->pre_4_1_migration
= true;
4561 DEFINE_SPAPR_MACHINE(4_0
, "4.0", false);
4566 static void spapr_machine_3_1_class_options(MachineClass
*mc
)
4568 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4570 spapr_machine_4_0_class_options(mc
);
4571 compat_props_add(mc
->compat_props
, hw_compat_3_1
, hw_compat_3_1_len
);
4573 mc
->default_cpu_type
= POWERPC_CPU_TYPE_NAME("power8_v2.0");
4574 smc
->update_dt_enabled
= false;
4575 smc
->dr_phb_enabled
= false;
4576 smc
->broken_host_serial_model
= true;
4577 smc
->default_caps
.caps
[SPAPR_CAP_CFPC
] = SPAPR_CAP_BROKEN
;
4578 smc
->default_caps
.caps
[SPAPR_CAP_SBBC
] = SPAPR_CAP_BROKEN
;
4579 smc
->default_caps
.caps
[SPAPR_CAP_IBS
] = SPAPR_CAP_BROKEN
;
4580 smc
->default_caps
.caps
[SPAPR_CAP_LARGE_DECREMENTER
] = SPAPR_CAP_OFF
;
4583 DEFINE_SPAPR_MACHINE(3_1
, "3.1", false);
4589 static void spapr_machine_3_0_class_options(MachineClass
*mc
)
4591 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4593 spapr_machine_3_1_class_options(mc
);
4594 compat_props_add(mc
->compat_props
, hw_compat_3_0
, hw_compat_3_0_len
);
4596 smc
->legacy_irq_allocation
= true;
4597 smc
->nr_xirqs
= 0x400;
4598 smc
->irq
= &spapr_irq_xics_legacy
;
4601 DEFINE_SPAPR_MACHINE(3_0
, "3.0", false);
4606 static void spapr_machine_2_12_class_options(MachineClass
*mc
)
4608 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4609 static GlobalProperty compat
[] = {
4610 { TYPE_POWERPC_CPU
, "pre-3.0-migration", "on" },
4611 { TYPE_SPAPR_CPU_CORE
, "pre-3.0-migration", "on" },
4614 spapr_machine_3_0_class_options(mc
);
4615 compat_props_add(mc
->compat_props
, hw_compat_2_12
, hw_compat_2_12_len
);
4616 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4618 /* We depend on kvm_enabled() to choose a default value for the
4619 * hpt-max-page-size capability. Of course we can't do it here
4620 * because this is too early and the HW accelerator isn't initialzed
4621 * yet. Postpone this to machine init (see default_caps_with_cpu()).
4623 smc
->default_caps
.caps
[SPAPR_CAP_HPT_MAXPAGESIZE
] = 0;
4626 DEFINE_SPAPR_MACHINE(2_12
, "2.12", false);
4628 static void spapr_machine_2_12_sxxm_class_options(MachineClass
*mc
)
4630 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4632 spapr_machine_2_12_class_options(mc
);
4633 smc
->default_caps
.caps
[SPAPR_CAP_CFPC
] = SPAPR_CAP_WORKAROUND
;
4634 smc
->default_caps
.caps
[SPAPR_CAP_SBBC
] = SPAPR_CAP_WORKAROUND
;
4635 smc
->default_caps
.caps
[SPAPR_CAP_IBS
] = SPAPR_CAP_FIXED_CCD
;
4638 DEFINE_SPAPR_MACHINE(2_12_sxxm
, "2.12-sxxm", false);
4644 static void spapr_machine_2_11_class_options(MachineClass
*mc
)
4646 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4648 spapr_machine_2_12_class_options(mc
);
4649 smc
->default_caps
.caps
[SPAPR_CAP_HTM
] = SPAPR_CAP_ON
;
4650 compat_props_add(mc
->compat_props
, hw_compat_2_11
, hw_compat_2_11_len
);
4653 DEFINE_SPAPR_MACHINE(2_11
, "2.11", false);
4659 static void spapr_machine_2_10_class_options(MachineClass
*mc
)
4661 spapr_machine_2_11_class_options(mc
);
4662 compat_props_add(mc
->compat_props
, hw_compat_2_10
, hw_compat_2_10_len
);
4665 DEFINE_SPAPR_MACHINE(2_10
, "2.10", false);
4671 static void spapr_machine_2_9_class_options(MachineClass
*mc
)
4673 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4674 static GlobalProperty compat
[] = {
4675 { TYPE_POWERPC_CPU
, "pre-2.10-migration", "on" },
4678 spapr_machine_2_10_class_options(mc
);
4679 compat_props_add(mc
->compat_props
, hw_compat_2_9
, hw_compat_2_9_len
);
4680 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4681 mc
->numa_auto_assign_ram
= numa_legacy_auto_assign_ram
;
4682 smc
->pre_2_10_has_unused_icps
= true;
4683 smc
->resize_hpt_default
= SPAPR_RESIZE_HPT_DISABLED
;
4686 DEFINE_SPAPR_MACHINE(2_9
, "2.9", false);
4692 static void spapr_machine_2_8_class_options(MachineClass
*mc
)
4694 static GlobalProperty compat
[] = {
4695 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "pcie-extended-configuration-space", "off" },
4698 spapr_machine_2_9_class_options(mc
);
4699 compat_props_add(mc
->compat_props
, hw_compat_2_8
, hw_compat_2_8_len
);
4700 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4701 mc
->numa_mem_align_shift
= 23;
4704 DEFINE_SPAPR_MACHINE(2_8
, "2.8", false);
4710 static void phb_placement_2_7(SpaprMachineState
*spapr
, uint32_t index
,
4711 uint64_t *buid
, hwaddr
*pio
,
4712 hwaddr
*mmio32
, hwaddr
*mmio64
,
4713 unsigned n_dma
, uint32_t *liobns
,
4714 hwaddr
*nv2gpa
, hwaddr
*nv2atsd
, Error
**errp
)
4716 /* Legacy PHB placement for pseries-2.7 and earlier machine types */
4717 const uint64_t base_buid
= 0x800000020000000ULL
;
4718 const hwaddr phb_spacing
= 0x1000000000ULL
; /* 64 GiB */
4719 const hwaddr mmio_offset
= 0xa0000000; /* 2 GiB + 512 MiB */
4720 const hwaddr pio_offset
= 0x80000000; /* 2 GiB */
4721 const uint32_t max_index
= 255;
4722 const hwaddr phb0_alignment
= 0x10000000000ULL
; /* 1 TiB */
4724 uint64_t ram_top
= MACHINE(spapr
)->ram_size
;
4725 hwaddr phb0_base
, phb_base
;
4728 /* Do we have device memory? */
4729 if (MACHINE(spapr
)->maxram_size
> ram_top
) {
4730 /* Can't just use maxram_size, because there may be an
4731 * alignment gap between normal and device memory regions
4733 ram_top
= MACHINE(spapr
)->device_memory
->base
+
4734 memory_region_size(&MACHINE(spapr
)->device_memory
->mr
);
4737 phb0_base
= QEMU_ALIGN_UP(ram_top
, phb0_alignment
);
4739 if (index
> max_index
) {
4740 error_setg(errp
, "\"index\" for PAPR PHB is too large (max %u)",
4745 *buid
= base_buid
+ index
;
4746 for (i
= 0; i
< n_dma
; ++i
) {
4747 liobns
[i
] = SPAPR_PCI_LIOBN(index
, i
);
4750 phb_base
= phb0_base
+ index
* phb_spacing
;
4751 *pio
= phb_base
+ pio_offset
;
4752 *mmio32
= phb_base
+ mmio_offset
;
4754 * We don't set the 64-bit MMIO window, relying on the PHB's
4755 * fallback behaviour of automatically splitting a large "32-bit"
4756 * window into contiguous 32-bit and 64-bit windows
4763 static void spapr_machine_2_7_class_options(MachineClass
*mc
)
4765 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4766 static GlobalProperty compat
[] = {
4767 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "mem_win_size", "0xf80000000", },
4768 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "mem64_win_size", "0", },
4769 { TYPE_POWERPC_CPU
, "pre-2.8-migration", "on", },
4770 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "pre-2.8-migration", "on", },
4773 spapr_machine_2_8_class_options(mc
);
4774 mc
->default_cpu_type
= POWERPC_CPU_TYPE_NAME("power7_v2.3");
4775 mc
->default_machine_opts
= "modern-hotplug-events=off";
4776 compat_props_add(mc
->compat_props
, hw_compat_2_7
, hw_compat_2_7_len
);
4777 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4778 smc
->phb_placement
= phb_placement_2_7
;
4781 DEFINE_SPAPR_MACHINE(2_7
, "2.7", false);
4787 static void spapr_machine_2_6_class_options(MachineClass
*mc
)
4789 static GlobalProperty compat
[] = {
4790 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "ddw", "off" },
4793 spapr_machine_2_7_class_options(mc
);
4794 mc
->has_hotpluggable_cpus
= false;
4795 compat_props_add(mc
->compat_props
, hw_compat_2_6
, hw_compat_2_6_len
);
4796 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4799 DEFINE_SPAPR_MACHINE(2_6
, "2.6", false);
4805 static void spapr_machine_2_5_class_options(MachineClass
*mc
)
4807 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4808 static GlobalProperty compat
[] = {
4809 { "spapr-vlan", "use-rx-buffer-pools", "off" },
4812 spapr_machine_2_6_class_options(mc
);
4813 smc
->use_ohci_by_default
= true;
4814 compat_props_add(mc
->compat_props
, hw_compat_2_5
, hw_compat_2_5_len
);
4815 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4818 DEFINE_SPAPR_MACHINE(2_5
, "2.5", false);
4824 static void spapr_machine_2_4_class_options(MachineClass
*mc
)
4826 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4828 spapr_machine_2_5_class_options(mc
);
4829 smc
->dr_lmb_enabled
= false;
4830 compat_props_add(mc
->compat_props
, hw_compat_2_4
, hw_compat_2_4_len
);
4833 DEFINE_SPAPR_MACHINE(2_4
, "2.4", false);
4839 static void spapr_machine_2_3_class_options(MachineClass
*mc
)
4841 static GlobalProperty compat
[] = {
4842 { "spapr-pci-host-bridge", "dynamic-reconfiguration", "off" },
4844 spapr_machine_2_4_class_options(mc
);
4845 compat_props_add(mc
->compat_props
, hw_compat_2_3
, hw_compat_2_3_len
);
4846 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4848 DEFINE_SPAPR_MACHINE(2_3
, "2.3", false);
4854 static void spapr_machine_2_2_class_options(MachineClass
*mc
)
4856 static GlobalProperty compat
[] = {
4857 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "mem_win_size", "0x20000000" },
4860 spapr_machine_2_3_class_options(mc
);
4861 compat_props_add(mc
->compat_props
, hw_compat_2_2
, hw_compat_2_2_len
);
4862 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4863 mc
->default_machine_opts
= "modern-hotplug-events=off,suppress-vmdesc=on";
4865 DEFINE_SPAPR_MACHINE(2_2
, "2.2", false);
4871 static void spapr_machine_2_1_class_options(MachineClass
*mc
)
4873 spapr_machine_2_2_class_options(mc
);
4874 compat_props_add(mc
->compat_props
, hw_compat_2_1
, hw_compat_2_1_len
);
4876 DEFINE_SPAPR_MACHINE(2_1
, "2.1", false);
4878 static void spapr_machine_register_types(void)
4880 type_register_static(&spapr_machine_info
);
4883 type_init(spapr_machine_register_types
)