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 "qapi/error.h"
29 #include "qapi/visitor.h"
30 #include "sysemu/sysemu.h"
31 #include "sysemu/numa.h"
34 #include "hw/fw-path-provider.h"
37 #include "sysemu/device_tree.h"
38 #include "sysemu/block-backend.h"
39 #include "sysemu/cpus.h"
40 #include "sysemu/hw_accel.h"
42 #include "migration/misc.h"
43 #include "migration/global_state.h"
44 #include "migration/register.h"
45 #include "mmu-hash64.h"
46 #include "mmu-book3s-v3.h"
47 #include "cpu-models.h"
50 #include "hw/boards.h"
51 #include "hw/ppc/ppc.h"
52 #include "hw/loader.h"
54 #include "hw/ppc/fdt.h"
55 #include "hw/ppc/spapr.h"
56 #include "hw/ppc/spapr_vio.h"
57 #include "hw/pci-host/spapr.h"
58 #include "hw/ppc/xics.h"
59 #include "hw/pci/msi.h"
61 #include "hw/pci/pci.h"
62 #include "hw/scsi/scsi.h"
63 #include "hw/virtio/virtio-scsi.h"
64 #include "hw/virtio/vhost-scsi-common.h"
66 #include "exec/address-spaces.h"
68 #include "qemu/config-file.h"
69 #include "qemu/error-report.h"
72 #include "hw/intc/intc.h"
74 #include "hw/compat.h"
75 #include "qemu/cutils.h"
76 #include "hw/ppc/spapr_cpu_core.h"
80 /* SLOF memory layout:
82 * SLOF raw image loaded at 0, copies its romfs right below the flat
83 * device-tree, then position SLOF itself 31M below that
85 * So we set FW_OVERHEAD to 40MB which should account for all of that
88 * We load our kernel at 4M, leaving space for SLOF initial image
90 #define FDT_MAX_SIZE 0x100000
91 #define RTAS_MAX_SIZE 0x10000
92 #define RTAS_MAX_ADDR 0x80000000 /* RTAS must stay below that */
93 #define FW_MAX_SIZE 0x400000
94 #define FW_FILE_NAME "slof.bin"
95 #define FW_OVERHEAD 0x2800000
96 #define KERNEL_LOAD_ADDR FW_MAX_SIZE
98 #define MIN_RMA_SLOF 128UL
100 #define PHANDLE_XICP 0x00001111
102 /* These two functions implement the VCPU id numbering: one to compute them
103 * all and one to identify thread 0 of a VCORE. Any change to the first one
104 * is likely to have an impact on the second one, so let's keep them close.
106 static int spapr_vcpu_id(sPAPRMachineState
*spapr
, int cpu_index
)
109 (cpu_index
/ smp_threads
) * spapr
->vsmt
+ cpu_index
% smp_threads
;
111 static bool spapr_is_thread0_in_vcore(sPAPRMachineState
*spapr
,
114 return spapr_get_vcpu_id(cpu
) % spapr
->vsmt
== 0;
117 static ICSState
*spapr_ics_create(sPAPRMachineState
*spapr
,
118 const char *type_ics
,
119 int nr_irqs
, Error
**errp
)
121 Error
*local_err
= NULL
;
124 obj
= object_new(type_ics
);
125 object_property_add_child(OBJECT(spapr
), "ics", obj
, &error_abort
);
126 object_property_add_const_link(obj
, ICS_PROP_XICS
, OBJECT(spapr
),
128 object_property_set_int(obj
, nr_irqs
, "nr-irqs", &local_err
);
132 object_property_set_bool(obj
, true, "realized", &local_err
);
137 return ICS_SIMPLE(obj
);
140 error_propagate(errp
, local_err
);
144 static bool pre_2_10_vmstate_dummy_icp_needed(void *opaque
)
146 /* Dummy entries correspond to unused ICPState objects in older QEMUs,
147 * and newer QEMUs don't even have them. In both cases, we don't want
148 * to send anything on the wire.
153 static const VMStateDescription pre_2_10_vmstate_dummy_icp
= {
154 .name
= "icp/server",
156 .minimum_version_id
= 1,
157 .needed
= pre_2_10_vmstate_dummy_icp_needed
,
158 .fields
= (VMStateField
[]) {
159 VMSTATE_UNUSED(4), /* uint32_t xirr */
160 VMSTATE_UNUSED(1), /* uint8_t pending_priority */
161 VMSTATE_UNUSED(1), /* uint8_t mfrr */
162 VMSTATE_END_OF_LIST()
166 static void pre_2_10_vmstate_register_dummy_icp(int i
)
168 vmstate_register(NULL
, i
, &pre_2_10_vmstate_dummy_icp
,
169 (void *)(uintptr_t) i
);
172 static void pre_2_10_vmstate_unregister_dummy_icp(int i
)
174 vmstate_unregister(NULL
, &pre_2_10_vmstate_dummy_icp
,
175 (void *)(uintptr_t) i
);
178 static int xics_max_server_number(sPAPRMachineState
*spapr
)
180 return DIV_ROUND_UP(max_cpus
* spapr
->vsmt
, smp_threads
);
183 static void xics_system_init(MachineState
*machine
, int nr_irqs
, Error
**errp
)
185 sPAPRMachineState
*spapr
= SPAPR_MACHINE(machine
);
186 sPAPRMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
189 if (machine_kernel_irqchip_allowed(machine
) &&
190 !xics_kvm_init(spapr
, errp
)) {
191 spapr
->icp_type
= TYPE_KVM_ICP
;
192 spapr
->ics
= spapr_ics_create(spapr
, TYPE_ICS_KVM
, nr_irqs
, errp
);
194 if (machine_kernel_irqchip_required(machine
) && !spapr
->ics
) {
195 error_prepend(errp
, "kernel_irqchip requested but unavailable: ");
201 xics_spapr_init(spapr
);
202 spapr
->icp_type
= TYPE_ICP
;
203 spapr
->ics
= spapr_ics_create(spapr
, TYPE_ICS_SIMPLE
, nr_irqs
, errp
);
209 if (smc
->pre_2_10_has_unused_icps
) {
212 for (i
= 0; i
< xics_max_server_number(spapr
); i
++) {
213 /* Dummy entries get deregistered when real ICPState objects
214 * are registered during CPU core hotplug.
216 pre_2_10_vmstate_register_dummy_icp(i
);
221 static int spapr_fixup_cpu_smt_dt(void *fdt
, int offset
, PowerPCCPU
*cpu
,
225 uint32_t servers_prop
[smt_threads
];
226 uint32_t gservers_prop
[smt_threads
* 2];
227 int index
= spapr_get_vcpu_id(cpu
);
229 if (cpu
->compat_pvr
) {
230 ret
= fdt_setprop_cell(fdt
, offset
, "cpu-version", cpu
->compat_pvr
);
236 /* Build interrupt servers and gservers properties */
237 for (i
= 0; i
< smt_threads
; i
++) {
238 servers_prop
[i
] = cpu_to_be32(index
+ i
);
239 /* Hack, direct the group queues back to cpu 0 */
240 gservers_prop
[i
*2] = cpu_to_be32(index
+ i
);
241 gservers_prop
[i
*2 + 1] = 0;
243 ret
= fdt_setprop(fdt
, offset
, "ibm,ppc-interrupt-server#s",
244 servers_prop
, sizeof(servers_prop
));
248 ret
= fdt_setprop(fdt
, offset
, "ibm,ppc-interrupt-gserver#s",
249 gservers_prop
, sizeof(gservers_prop
));
254 static int spapr_fixup_cpu_numa_dt(void *fdt
, int offset
, PowerPCCPU
*cpu
)
256 int index
= spapr_get_vcpu_id(cpu
);
257 uint32_t associativity
[] = {cpu_to_be32(0x5),
261 cpu_to_be32(cpu
->node_id
),
264 /* Advertise NUMA via ibm,associativity */
265 return fdt_setprop(fdt
, offset
, "ibm,associativity", associativity
,
266 sizeof(associativity
));
269 /* Populate the "ibm,pa-features" property */
270 static void spapr_populate_pa_features(sPAPRMachineState
*spapr
,
272 void *fdt
, int offset
,
275 CPUPPCState
*env
= &cpu
->env
;
276 uint8_t pa_features_206
[] = { 6, 0,
277 0xf6, 0x1f, 0xc7, 0x00, 0x80, 0xc0 };
278 uint8_t pa_features_207
[] = { 24, 0,
279 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0,
280 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
281 0x00, 0x00, 0x00, 0x00, 0x80, 0x00,
282 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 };
283 uint8_t pa_features_300
[] = { 66, 0,
284 /* 0: MMU|FPU|SLB|RUN|DABR|NX, 1: fri[nzpm]|DABRX|SPRG3|SLB0|PP110 */
285 /* 2: VPM|DS205|PPR|DS202|DS206, 3: LSD|URG, SSO, 5: LE|CFAR|EB|LSQ */
286 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0, /* 0 - 5 */
288 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, /* 6 - 11 */
290 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, /* 12 - 17 */
291 /* 18: Vec. Scalar, 20: Vec. XOR, 22: HTM */
292 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, /* 18 - 23 */
293 /* 24: Ext. Dec, 26: 64 bit ftrs, 28: PM ftrs */
294 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 24 - 29 */
295 /* 30: MMR, 32: LE atomic, 34: EBB + ext EBB */
296 0x80, 0x00, 0x80, 0x00, 0xC0, 0x00, /* 30 - 35 */
297 /* 36: SPR SO, 38: Copy/Paste, 40: Radix MMU */
298 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 36 - 41 */
299 /* 42: PM, 44: PC RA, 46: SC vec'd */
300 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 42 - 47 */
301 /* 48: SIMD, 50: QP BFP, 52: String */
302 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 48 - 53 */
303 /* 54: DecFP, 56: DecI, 58: SHA */
304 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 54 - 59 */
305 /* 60: NM atomic, 62: RNG */
306 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, /* 60 - 65 */
308 uint8_t *pa_features
= NULL
;
311 if (ppc_check_compat(cpu
, CPU_POWERPC_LOGICAL_2_06
, 0, cpu
->compat_pvr
)) {
312 pa_features
= pa_features_206
;
313 pa_size
= sizeof(pa_features_206
);
315 if (ppc_check_compat(cpu
, CPU_POWERPC_LOGICAL_2_07
, 0, cpu
->compat_pvr
)) {
316 pa_features
= pa_features_207
;
317 pa_size
= sizeof(pa_features_207
);
319 if (ppc_check_compat(cpu
, CPU_POWERPC_LOGICAL_3_00
, 0, cpu
->compat_pvr
)) {
320 pa_features
= pa_features_300
;
321 pa_size
= sizeof(pa_features_300
);
327 if (env
->ci_large_pages
) {
329 * Note: we keep CI large pages off by default because a 64K capable
330 * guest provisioned with large pages might otherwise try to map a qemu
331 * framebuffer (or other kind of memory mapped PCI BAR) using 64K pages
332 * even if that qemu runs on a 4k host.
333 * We dd this bit back here if we are confident this is not an issue
335 pa_features
[3] |= 0x20;
337 if ((spapr_get_cap(spapr
, SPAPR_CAP_HTM
) != 0) && pa_size
> 24) {
338 pa_features
[24] |= 0x80; /* Transactional memory support */
340 if (legacy_guest
&& pa_size
> 40) {
341 /* Workaround for broken kernels that attempt (guest) radix
342 * mode when they can't handle it, if they see the radix bit set
343 * in pa-features. So hide it from them. */
344 pa_features
[40 + 2] &= ~0x80; /* Radix MMU */
347 _FDT((fdt_setprop(fdt
, offset
, "ibm,pa-features", pa_features
, pa_size
)));
350 static int spapr_fixup_cpu_dt(void *fdt
, sPAPRMachineState
*spapr
)
352 int ret
= 0, offset
, cpus_offset
;
355 uint32_t pft_size_prop
[] = {0, cpu_to_be32(spapr
->htab_shift
)};
358 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
359 DeviceClass
*dc
= DEVICE_GET_CLASS(cs
);
360 int index
= spapr_get_vcpu_id(cpu
);
361 int compat_smt
= MIN(smp_threads
, ppc_compat_max_vthreads(cpu
));
363 if (!spapr_is_thread0_in_vcore(spapr
, cpu
)) {
367 snprintf(cpu_model
, 32, "%s@%x", dc
->fw_name
, index
);
369 cpus_offset
= fdt_path_offset(fdt
, "/cpus");
370 if (cpus_offset
< 0) {
371 cpus_offset
= fdt_add_subnode(fdt
, 0, "cpus");
372 if (cpus_offset
< 0) {
376 offset
= fdt_subnode_offset(fdt
, cpus_offset
, cpu_model
);
378 offset
= fdt_add_subnode(fdt
, cpus_offset
, cpu_model
);
384 ret
= fdt_setprop(fdt
, offset
, "ibm,pft-size",
385 pft_size_prop
, sizeof(pft_size_prop
));
390 if (nb_numa_nodes
> 1) {
391 ret
= spapr_fixup_cpu_numa_dt(fdt
, offset
, cpu
);
397 ret
= spapr_fixup_cpu_smt_dt(fdt
, offset
, cpu
, compat_smt
);
402 spapr_populate_pa_features(spapr
, cpu
, fdt
, offset
,
403 spapr
->cas_legacy_guest_workaround
);
408 static hwaddr
spapr_node0_size(MachineState
*machine
)
412 for (i
= 0; i
< nb_numa_nodes
; ++i
) {
413 if (numa_info
[i
].node_mem
) {
414 return MIN(pow2floor(numa_info
[i
].node_mem
),
419 return machine
->ram_size
;
422 static void add_str(GString
*s
, const gchar
*s1
)
424 g_string_append_len(s
, s1
, strlen(s1
) + 1);
427 static int spapr_populate_memory_node(void *fdt
, int nodeid
, hwaddr start
,
430 uint32_t associativity
[] = {
431 cpu_to_be32(0x4), /* length */
432 cpu_to_be32(0x0), cpu_to_be32(0x0),
433 cpu_to_be32(0x0), cpu_to_be32(nodeid
)
436 uint64_t mem_reg_property
[2];
439 mem_reg_property
[0] = cpu_to_be64(start
);
440 mem_reg_property
[1] = cpu_to_be64(size
);
442 sprintf(mem_name
, "memory@" TARGET_FMT_lx
, start
);
443 off
= fdt_add_subnode(fdt
, 0, mem_name
);
445 _FDT((fdt_setprop_string(fdt
, off
, "device_type", "memory")));
446 _FDT((fdt_setprop(fdt
, off
, "reg", mem_reg_property
,
447 sizeof(mem_reg_property
))));
448 _FDT((fdt_setprop(fdt
, off
, "ibm,associativity", associativity
,
449 sizeof(associativity
))));
453 static int spapr_populate_memory(sPAPRMachineState
*spapr
, void *fdt
)
455 MachineState
*machine
= MACHINE(spapr
);
456 hwaddr mem_start
, node_size
;
457 int i
, nb_nodes
= nb_numa_nodes
;
458 NodeInfo
*nodes
= numa_info
;
461 /* No NUMA nodes, assume there is just one node with whole RAM */
462 if (!nb_numa_nodes
) {
464 ramnode
.node_mem
= machine
->ram_size
;
468 for (i
= 0, mem_start
= 0; i
< nb_nodes
; ++i
) {
469 if (!nodes
[i
].node_mem
) {
472 if (mem_start
>= machine
->ram_size
) {
475 node_size
= nodes
[i
].node_mem
;
476 if (node_size
> machine
->ram_size
- mem_start
) {
477 node_size
= machine
->ram_size
- mem_start
;
481 /* spapr_machine_init() checks for rma_size <= node0_size
483 spapr_populate_memory_node(fdt
, i
, 0, spapr
->rma_size
);
484 mem_start
+= spapr
->rma_size
;
485 node_size
-= spapr
->rma_size
;
487 for ( ; node_size
; ) {
488 hwaddr sizetmp
= pow2floor(node_size
);
490 /* mem_start != 0 here */
491 if (ctzl(mem_start
) < ctzl(sizetmp
)) {
492 sizetmp
= 1ULL << ctzl(mem_start
);
495 spapr_populate_memory_node(fdt
, i
, mem_start
, sizetmp
);
496 node_size
-= sizetmp
;
497 mem_start
+= sizetmp
;
504 static void spapr_populate_cpu_dt(CPUState
*cs
, void *fdt
, int offset
,
505 sPAPRMachineState
*spapr
)
507 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
508 CPUPPCState
*env
= &cpu
->env
;
509 PowerPCCPUClass
*pcc
= POWERPC_CPU_GET_CLASS(cs
);
510 int index
= spapr_get_vcpu_id(cpu
);
511 uint32_t segs
[] = {cpu_to_be32(28), cpu_to_be32(40),
512 0xffffffff, 0xffffffff};
513 uint32_t tbfreq
= kvm_enabled() ? kvmppc_get_tbfreq()
514 : SPAPR_TIMEBASE_FREQ
;
515 uint32_t cpufreq
= kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;
516 uint32_t page_sizes_prop
[64];
517 size_t page_sizes_prop_size
;
518 uint32_t vcpus_per_socket
= smp_threads
* smp_cores
;
519 uint32_t pft_size_prop
[] = {0, cpu_to_be32(spapr
->htab_shift
)};
520 int compat_smt
= MIN(smp_threads
, ppc_compat_max_vthreads(cpu
));
521 sPAPRDRConnector
*drc
;
523 uint32_t radix_AP_encodings
[PPC_PAGE_SIZES_MAX_SZ
];
526 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_CPU
, index
);
528 drc_index
= spapr_drc_index(drc
);
529 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,my-drc-index", drc_index
)));
532 _FDT((fdt_setprop_cell(fdt
, offset
, "reg", index
)));
533 _FDT((fdt_setprop_string(fdt
, offset
, "device_type", "cpu")));
535 _FDT((fdt_setprop_cell(fdt
, offset
, "cpu-version", env
->spr
[SPR_PVR
])));
536 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-block-size",
537 env
->dcache_line_size
)));
538 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-line-size",
539 env
->dcache_line_size
)));
540 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-block-size",
541 env
->icache_line_size
)));
542 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-line-size",
543 env
->icache_line_size
)));
545 if (pcc
->l1_dcache_size
) {
546 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-size",
547 pcc
->l1_dcache_size
)));
549 warn_report("Unknown L1 dcache size for cpu");
551 if (pcc
->l1_icache_size
) {
552 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-size",
553 pcc
->l1_icache_size
)));
555 warn_report("Unknown L1 icache size for cpu");
558 _FDT((fdt_setprop_cell(fdt
, offset
, "timebase-frequency", tbfreq
)));
559 _FDT((fdt_setprop_cell(fdt
, offset
, "clock-frequency", cpufreq
)));
560 _FDT((fdt_setprop_cell(fdt
, offset
, "slb-size", env
->slb_nr
)));
561 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,slb-size", env
->slb_nr
)));
562 _FDT((fdt_setprop_string(fdt
, offset
, "status", "okay")));
563 _FDT((fdt_setprop(fdt
, offset
, "64-bit", NULL
, 0)));
565 if (env
->spr_cb
[SPR_PURR
].oea_read
) {
566 _FDT((fdt_setprop(fdt
, offset
, "ibm,purr", NULL
, 0)));
569 if (env
->mmu_model
& POWERPC_MMU_1TSEG
) {
570 _FDT((fdt_setprop(fdt
, offset
, "ibm,processor-segment-sizes",
571 segs
, sizeof(segs
))));
574 /* Advertise VSX (vector extensions) if available
575 * 1 == VMX / Altivec available
578 * Only CPUs for which we create core types in spapr_cpu_core.c
579 * are possible, and all of those have VMX */
580 if (spapr_get_cap(spapr
, SPAPR_CAP_VSX
) != 0) {
581 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,vmx", 2)));
583 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,vmx", 1)));
586 /* Advertise DFP (Decimal Floating Point) if available
587 * 0 / no property == no DFP
588 * 1 == DFP available */
589 if (spapr_get_cap(spapr
, SPAPR_CAP_DFP
) != 0) {
590 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,dfp", 1)));
593 page_sizes_prop_size
= ppc_create_page_sizes_prop(env
, page_sizes_prop
,
594 sizeof(page_sizes_prop
));
595 if (page_sizes_prop_size
) {
596 _FDT((fdt_setprop(fdt
, offset
, "ibm,segment-page-sizes",
597 page_sizes_prop
, page_sizes_prop_size
)));
600 spapr_populate_pa_features(spapr
, cpu
, fdt
, offset
, false);
602 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,chip-id",
603 cs
->cpu_index
/ vcpus_per_socket
)));
605 _FDT((fdt_setprop(fdt
, offset
, "ibm,pft-size",
606 pft_size_prop
, sizeof(pft_size_prop
))));
608 if (nb_numa_nodes
> 1) {
609 _FDT(spapr_fixup_cpu_numa_dt(fdt
, offset
, cpu
));
612 _FDT(spapr_fixup_cpu_smt_dt(fdt
, offset
, cpu
, compat_smt
));
614 if (pcc
->radix_page_info
) {
615 for (i
= 0; i
< pcc
->radix_page_info
->count
; i
++) {
616 radix_AP_encodings
[i
] =
617 cpu_to_be32(pcc
->radix_page_info
->entries
[i
]);
619 _FDT((fdt_setprop(fdt
, offset
, "ibm,processor-radix-AP-encodings",
621 pcc
->radix_page_info
->count
*
622 sizeof(radix_AP_encodings
[0]))));
626 static void spapr_populate_cpus_dt_node(void *fdt
, sPAPRMachineState
*spapr
)
632 cpus_offset
= fdt_add_subnode(fdt
, 0, "cpus");
634 _FDT((fdt_setprop_cell(fdt
, cpus_offset
, "#address-cells", 0x1)));
635 _FDT((fdt_setprop_cell(fdt
, cpus_offset
, "#size-cells", 0x0)));
638 * We walk the CPUs in reverse order to ensure that CPU DT nodes
639 * created by fdt_add_subnode() end up in the right order in FDT
640 * for the guest kernel the enumerate the CPUs correctly.
642 CPU_FOREACH_REVERSE(cs
) {
643 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
644 int index
= spapr_get_vcpu_id(cpu
);
645 DeviceClass
*dc
= DEVICE_GET_CLASS(cs
);
648 if (!spapr_is_thread0_in_vcore(spapr
, cpu
)) {
652 nodename
= g_strdup_printf("%s@%x", dc
->fw_name
, index
);
653 offset
= fdt_add_subnode(fdt
, cpus_offset
, nodename
);
656 spapr_populate_cpu_dt(cs
, fdt
, offset
, spapr
);
661 static uint32_t spapr_pc_dimm_node(MemoryDeviceInfoList
*list
, ram_addr_t addr
)
663 MemoryDeviceInfoList
*info
;
665 for (info
= list
; info
; info
= info
->next
) {
666 MemoryDeviceInfo
*value
= info
->value
;
668 if (value
&& value
->type
== MEMORY_DEVICE_INFO_KIND_DIMM
) {
669 PCDIMMDeviceInfo
*pcdimm_info
= value
->u
.dimm
.data
;
671 if (pcdimm_info
->addr
>= addr
&&
672 addr
< (pcdimm_info
->addr
+ pcdimm_info
->size
)) {
673 return pcdimm_info
->node
;
682 * Adds ibm,dynamic-reconfiguration-memory node.
683 * Refer to docs/specs/ppc-spapr-hotplug.txt for the documentation
684 * of this device tree node.
686 static int spapr_populate_drconf_memory(sPAPRMachineState
*spapr
, void *fdt
)
688 MachineState
*machine
= MACHINE(spapr
);
690 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
691 uint32_t prop_lmb_size
[] = {0, cpu_to_be32(lmb_size
)};
692 uint32_t hotplug_lmb_start
= spapr
->hotplug_memory
.base
/ lmb_size
;
693 uint32_t nr_lmbs
= (spapr
->hotplug_memory
.base
+
694 memory_region_size(&spapr
->hotplug_memory
.mr
)) /
696 uint32_t *int_buf
, *cur_index
, buf_len
;
697 int nr_nodes
= nb_numa_nodes
? nb_numa_nodes
: 1;
698 MemoryDeviceInfoList
*dimms
= NULL
;
701 * Don't create the node if there is no hotpluggable memory
703 if (machine
->ram_size
== machine
->maxram_size
) {
708 * Allocate enough buffer size to fit in ibm,dynamic-memory
709 * or ibm,associativity-lookup-arrays
711 buf_len
= MAX(nr_lmbs
* SPAPR_DR_LMB_LIST_ENTRY_SIZE
+ 1, nr_nodes
* 4 + 2)
713 cur_index
= int_buf
= g_malloc0(buf_len
);
715 offset
= fdt_add_subnode(fdt
, 0, "ibm,dynamic-reconfiguration-memory");
717 ret
= fdt_setprop(fdt
, offset
, "ibm,lmb-size", prop_lmb_size
,
718 sizeof(prop_lmb_size
));
723 ret
= fdt_setprop_cell(fdt
, offset
, "ibm,memory-flags-mask", 0xff);
728 ret
= fdt_setprop_cell(fdt
, offset
, "ibm,memory-preservation-time", 0x0);
733 if (hotplug_lmb_start
) {
734 MemoryDeviceInfoList
**prev
= &dimms
;
735 qmp_pc_dimm_device_list(qdev_get_machine(), &prev
);
738 /* ibm,dynamic-memory */
739 int_buf
[0] = cpu_to_be32(nr_lmbs
);
741 for (i
= 0; i
< nr_lmbs
; i
++) {
742 uint64_t addr
= i
* lmb_size
;
743 uint32_t *dynamic_memory
= cur_index
;
745 if (i
>= hotplug_lmb_start
) {
746 sPAPRDRConnector
*drc
;
748 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
, i
);
751 dynamic_memory
[0] = cpu_to_be32(addr
>> 32);
752 dynamic_memory
[1] = cpu_to_be32(addr
& 0xffffffff);
753 dynamic_memory
[2] = cpu_to_be32(spapr_drc_index(drc
));
754 dynamic_memory
[3] = cpu_to_be32(0); /* reserved */
755 dynamic_memory
[4] = cpu_to_be32(spapr_pc_dimm_node(dimms
, addr
));
756 if (memory_region_present(get_system_memory(), addr
)) {
757 dynamic_memory
[5] = cpu_to_be32(SPAPR_LMB_FLAGS_ASSIGNED
);
759 dynamic_memory
[5] = cpu_to_be32(0);
763 * LMB information for RMA, boot time RAM and gap b/n RAM and
764 * hotplug memory region -- all these are marked as reserved
765 * and as having no valid DRC.
767 dynamic_memory
[0] = cpu_to_be32(addr
>> 32);
768 dynamic_memory
[1] = cpu_to_be32(addr
& 0xffffffff);
769 dynamic_memory
[2] = cpu_to_be32(0);
770 dynamic_memory
[3] = cpu_to_be32(0); /* reserved */
771 dynamic_memory
[4] = cpu_to_be32(-1);
772 dynamic_memory
[5] = cpu_to_be32(SPAPR_LMB_FLAGS_RESERVED
|
773 SPAPR_LMB_FLAGS_DRC_INVALID
);
776 cur_index
+= SPAPR_DR_LMB_LIST_ENTRY_SIZE
;
778 qapi_free_MemoryDeviceInfoList(dimms
);
779 ret
= fdt_setprop(fdt
, offset
, "ibm,dynamic-memory", int_buf
, buf_len
);
784 /* ibm,associativity-lookup-arrays */
786 int_buf
[0] = cpu_to_be32(nr_nodes
);
787 int_buf
[1] = cpu_to_be32(4); /* Number of entries per associativity list */
789 for (i
= 0; i
< nr_nodes
; i
++) {
790 uint32_t associativity
[] = {
796 memcpy(cur_index
, associativity
, sizeof(associativity
));
799 ret
= fdt_setprop(fdt
, offset
, "ibm,associativity-lookup-arrays", int_buf
,
800 (cur_index
- int_buf
) * sizeof(uint32_t));
806 static int spapr_dt_cas_updates(sPAPRMachineState
*spapr
, void *fdt
,
807 sPAPROptionVector
*ov5_updates
)
809 sPAPRMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
812 /* Generate ibm,dynamic-reconfiguration-memory node if required */
813 if (spapr_ovec_test(ov5_updates
, OV5_DRCONF_MEMORY
)) {
814 g_assert(smc
->dr_lmb_enabled
);
815 ret
= spapr_populate_drconf_memory(spapr
, fdt
);
821 offset
= fdt_path_offset(fdt
, "/chosen");
823 offset
= fdt_add_subnode(fdt
, 0, "chosen");
828 ret
= spapr_ovec_populate_dt(fdt
, offset
, spapr
->ov5_cas
,
829 "ibm,architecture-vec-5");
835 static bool spapr_hotplugged_dev_before_cas(void)
837 Object
*drc_container
, *obj
;
838 ObjectProperty
*prop
;
839 ObjectPropertyIterator iter
;
841 drc_container
= container_get(object_get_root(), "/dr-connector");
842 object_property_iter_init(&iter
, drc_container
);
843 while ((prop
= object_property_iter_next(&iter
))) {
844 if (!strstart(prop
->type
, "link<", NULL
)) {
847 obj
= object_property_get_link(drc_container
, prop
->name
, NULL
);
848 if (spapr_drc_needed(obj
)) {
855 int spapr_h_cas_compose_response(sPAPRMachineState
*spapr
,
856 target_ulong addr
, target_ulong size
,
857 sPAPROptionVector
*ov5_updates
)
859 void *fdt
, *fdt_skel
;
860 sPAPRDeviceTreeUpdateHeader hdr
= { .version_id
= 1 };
862 if (spapr_hotplugged_dev_before_cas()) {
866 if (size
< sizeof(hdr
) || size
> FW_MAX_SIZE
) {
867 error_report("SLOF provided an unexpected CAS buffer size "
868 TARGET_FMT_lu
" (min: %zu, max: %u)",
869 size
, sizeof(hdr
), FW_MAX_SIZE
);
875 /* Create skeleton */
876 fdt_skel
= g_malloc0(size
);
877 _FDT((fdt_create(fdt_skel
, size
)));
878 _FDT((fdt_begin_node(fdt_skel
, "")));
879 _FDT((fdt_end_node(fdt_skel
)));
880 _FDT((fdt_finish(fdt_skel
)));
881 fdt
= g_malloc0(size
);
882 _FDT((fdt_open_into(fdt_skel
, fdt
, size
)));
885 /* Fixup cpu nodes */
886 _FDT((spapr_fixup_cpu_dt(fdt
, spapr
)));
888 if (spapr_dt_cas_updates(spapr
, fdt
, ov5_updates
)) {
892 /* Pack resulting tree */
893 _FDT((fdt_pack(fdt
)));
895 if (fdt_totalsize(fdt
) + sizeof(hdr
) > size
) {
896 trace_spapr_cas_failed(size
);
900 cpu_physical_memory_write(addr
, &hdr
, sizeof(hdr
));
901 cpu_physical_memory_write(addr
+ sizeof(hdr
), fdt
, fdt_totalsize(fdt
));
902 trace_spapr_cas_continue(fdt_totalsize(fdt
) + sizeof(hdr
));
908 static void spapr_dt_rtas(sPAPRMachineState
*spapr
, void *fdt
)
911 GString
*hypertas
= g_string_sized_new(256);
912 GString
*qemu_hypertas
= g_string_sized_new(256);
913 uint32_t refpoints
[] = { cpu_to_be32(0x4), cpu_to_be32(0x4) };
914 uint64_t max_hotplug_addr
= spapr
->hotplug_memory
.base
+
915 memory_region_size(&spapr
->hotplug_memory
.mr
);
916 uint32_t lrdr_capacity
[] = {
917 cpu_to_be32(max_hotplug_addr
>> 32),
918 cpu_to_be32(max_hotplug_addr
& 0xffffffff),
919 0, cpu_to_be32(SPAPR_MEMORY_BLOCK_SIZE
),
920 cpu_to_be32(max_cpus
/ smp_threads
),
923 _FDT(rtas
= fdt_add_subnode(fdt
, 0, "rtas"));
926 add_str(hypertas
, "hcall-pft");
927 add_str(hypertas
, "hcall-term");
928 add_str(hypertas
, "hcall-dabr");
929 add_str(hypertas
, "hcall-interrupt");
930 add_str(hypertas
, "hcall-tce");
931 add_str(hypertas
, "hcall-vio");
932 add_str(hypertas
, "hcall-splpar");
933 add_str(hypertas
, "hcall-bulk");
934 add_str(hypertas
, "hcall-set-mode");
935 add_str(hypertas
, "hcall-sprg0");
936 add_str(hypertas
, "hcall-copy");
937 add_str(hypertas
, "hcall-debug");
938 add_str(qemu_hypertas
, "hcall-memop1");
940 if (!kvm_enabled() || kvmppc_spapr_use_multitce()) {
941 add_str(hypertas
, "hcall-multi-tce");
944 if (spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DISABLED
) {
945 add_str(hypertas
, "hcall-hpt-resize");
948 _FDT(fdt_setprop(fdt
, rtas
, "ibm,hypertas-functions",
949 hypertas
->str
, hypertas
->len
));
950 g_string_free(hypertas
, TRUE
);
951 _FDT(fdt_setprop(fdt
, rtas
, "qemu,hypertas-functions",
952 qemu_hypertas
->str
, qemu_hypertas
->len
));
953 g_string_free(qemu_hypertas
, TRUE
);
955 _FDT(fdt_setprop(fdt
, rtas
, "ibm,associativity-reference-points",
956 refpoints
, sizeof(refpoints
)));
958 _FDT(fdt_setprop_cell(fdt
, rtas
, "rtas-error-log-max",
959 RTAS_ERROR_LOG_MAX
));
960 _FDT(fdt_setprop_cell(fdt
, rtas
, "rtas-event-scan-rate",
961 RTAS_EVENT_SCAN_RATE
));
963 g_assert(msi_nonbroken
);
964 _FDT(fdt_setprop(fdt
, rtas
, "ibm,change-msix-capable", NULL
, 0));
967 * According to PAPR, rtas ibm,os-term does not guarantee a return
968 * back to the guest cpu.
970 * While an additional ibm,extended-os-term property indicates
971 * that rtas call return will always occur. Set this property.
973 _FDT(fdt_setprop(fdt
, rtas
, "ibm,extended-os-term", NULL
, 0));
975 _FDT(fdt_setprop(fdt
, rtas
, "ibm,lrdr-capacity",
976 lrdr_capacity
, sizeof(lrdr_capacity
)));
978 spapr_dt_rtas_tokens(fdt
, rtas
);
981 /* Prepare ibm,arch-vec-5-platform-support, which indicates the MMU features
982 * that the guest may request and thus the valid values for bytes 24..26 of
983 * option vector 5: */
984 static void spapr_dt_ov5_platform_support(void *fdt
, int chosen
)
986 PowerPCCPU
*first_ppc_cpu
= POWERPC_CPU(first_cpu
);
989 23, 0x00, /* Xive mode, filled in below. */
990 24, 0x00, /* Hash/Radix, filled in below. */
991 25, 0x00, /* Hash options: Segment Tables == no, GTSE == no. */
992 26, 0x40, /* Radix options: GTSE == yes. */
995 if (!ppc_check_compat(first_ppc_cpu
, CPU_POWERPC_LOGICAL_3_00
, 0,
996 first_ppc_cpu
->compat_pvr
)) {
997 /* If we're in a pre POWER9 compat mode then the guest should do hash */
998 val
[3] = 0x00; /* Hash */
999 } else if (kvm_enabled()) {
1000 if (kvmppc_has_cap_mmu_radix() && kvmppc_has_cap_mmu_hash_v3()) {
1001 val
[3] = 0x80; /* OV5_MMU_BOTH */
1002 } else if (kvmppc_has_cap_mmu_radix()) {
1003 val
[3] = 0x40; /* OV5_MMU_RADIX_300 */
1005 val
[3] = 0x00; /* Hash */
1008 /* V3 MMU supports both hash and radix in tcg (with dynamic switching) */
1011 _FDT(fdt_setprop(fdt
, chosen
, "ibm,arch-vec-5-platform-support",
1015 static void spapr_dt_chosen(sPAPRMachineState
*spapr
, void *fdt
)
1017 MachineState
*machine
= MACHINE(spapr
);
1019 const char *boot_device
= machine
->boot_order
;
1020 char *stdout_path
= spapr_vio_stdout_path(spapr
->vio_bus
);
1022 char *bootlist
= get_boot_devices_list(&cb
, true);
1024 _FDT(chosen
= fdt_add_subnode(fdt
, 0, "chosen"));
1026 _FDT(fdt_setprop_string(fdt
, chosen
, "bootargs", machine
->kernel_cmdline
));
1027 _FDT(fdt_setprop_cell(fdt
, chosen
, "linux,initrd-start",
1028 spapr
->initrd_base
));
1029 _FDT(fdt_setprop_cell(fdt
, chosen
, "linux,initrd-end",
1030 spapr
->initrd_base
+ spapr
->initrd_size
));
1032 if (spapr
->kernel_size
) {
1033 uint64_t kprop
[2] = { cpu_to_be64(KERNEL_LOAD_ADDR
),
1034 cpu_to_be64(spapr
->kernel_size
) };
1036 _FDT(fdt_setprop(fdt
, chosen
, "qemu,boot-kernel",
1037 &kprop
, sizeof(kprop
)));
1038 if (spapr
->kernel_le
) {
1039 _FDT(fdt_setprop(fdt
, chosen
, "qemu,boot-kernel-le", NULL
, 0));
1043 _FDT((fdt_setprop_cell(fdt
, chosen
, "qemu,boot-menu", boot_menu
)));
1045 _FDT(fdt_setprop_cell(fdt
, chosen
, "qemu,graphic-width", graphic_width
));
1046 _FDT(fdt_setprop_cell(fdt
, chosen
, "qemu,graphic-height", graphic_height
));
1047 _FDT(fdt_setprop_cell(fdt
, chosen
, "qemu,graphic-depth", graphic_depth
));
1049 if (cb
&& bootlist
) {
1052 for (i
= 0; i
< cb
; i
++) {
1053 if (bootlist
[i
] == '\n') {
1057 _FDT(fdt_setprop_string(fdt
, chosen
, "qemu,boot-list", bootlist
));
1060 if (boot_device
&& strlen(boot_device
)) {
1061 _FDT(fdt_setprop_string(fdt
, chosen
, "qemu,boot-device", boot_device
));
1064 if (!spapr
->has_graphics
&& stdout_path
) {
1065 _FDT(fdt_setprop_string(fdt
, chosen
, "linux,stdout-path", stdout_path
));
1068 spapr_dt_ov5_platform_support(fdt
, chosen
);
1070 g_free(stdout_path
);
1074 static void spapr_dt_hypervisor(sPAPRMachineState
*spapr
, void *fdt
)
1076 /* The /hypervisor node isn't in PAPR - this is a hack to allow PR
1077 * KVM to work under pHyp with some guest co-operation */
1079 uint8_t hypercall
[16];
1081 _FDT(hypervisor
= fdt_add_subnode(fdt
, 0, "hypervisor"));
1082 /* indicate KVM hypercall interface */
1083 _FDT(fdt_setprop_string(fdt
, hypervisor
, "compatible", "linux,kvm"));
1084 if (kvmppc_has_cap_fixup_hcalls()) {
1086 * Older KVM versions with older guest kernels were broken
1087 * with the magic page, don't allow the guest to map it.
1089 if (!kvmppc_get_hypercall(first_cpu
->env_ptr
, hypercall
,
1090 sizeof(hypercall
))) {
1091 _FDT(fdt_setprop(fdt
, hypervisor
, "hcall-instructions",
1092 hypercall
, sizeof(hypercall
)));
1097 static void *spapr_build_fdt(sPAPRMachineState
*spapr
,
1101 MachineState
*machine
= MACHINE(spapr
);
1102 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1103 sPAPRMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
1109 fdt
= g_malloc0(FDT_MAX_SIZE
);
1110 _FDT((fdt_create_empty_tree(fdt
, FDT_MAX_SIZE
)));
1113 _FDT(fdt_setprop_string(fdt
, 0, "device_type", "chrp"));
1114 _FDT(fdt_setprop_string(fdt
, 0, "model", "IBM pSeries (emulated by qemu)"));
1115 _FDT(fdt_setprop_string(fdt
, 0, "compatible", "qemu,pseries"));
1118 * Add info to guest to indentify which host is it being run on
1119 * and what is the uuid of the guest
1121 if (kvmppc_get_host_model(&buf
)) {
1122 _FDT(fdt_setprop_string(fdt
, 0, "host-model", buf
));
1125 if (kvmppc_get_host_serial(&buf
)) {
1126 _FDT(fdt_setprop_string(fdt
, 0, "host-serial", buf
));
1130 buf
= qemu_uuid_unparse_strdup(&qemu_uuid
);
1132 _FDT(fdt_setprop_string(fdt
, 0, "vm,uuid", buf
));
1133 if (qemu_uuid_set
) {
1134 _FDT(fdt_setprop_string(fdt
, 0, "system-id", buf
));
1138 if (qemu_get_vm_name()) {
1139 _FDT(fdt_setprop_string(fdt
, 0, "ibm,partition-name",
1140 qemu_get_vm_name()));
1143 _FDT(fdt_setprop_cell(fdt
, 0, "#address-cells", 2));
1144 _FDT(fdt_setprop_cell(fdt
, 0, "#size-cells", 2));
1146 /* /interrupt controller */
1147 spapr_dt_xics(xics_max_server_number(spapr
), fdt
, PHANDLE_XICP
);
1149 ret
= spapr_populate_memory(spapr
, fdt
);
1151 error_report("couldn't setup memory nodes in fdt");
1156 spapr_dt_vdevice(spapr
->vio_bus
, fdt
);
1158 if (object_resolve_path_type("", TYPE_SPAPR_RNG
, NULL
)) {
1159 ret
= spapr_rng_populate_dt(fdt
);
1161 error_report("could not set up rng device in the fdt");
1166 QLIST_FOREACH(phb
, &spapr
->phbs
, list
) {
1167 ret
= spapr_populate_pci_dt(phb
, PHANDLE_XICP
, fdt
);
1169 error_report("couldn't setup PCI devices in fdt");
1175 spapr_populate_cpus_dt_node(fdt
, spapr
);
1177 if (smc
->dr_lmb_enabled
) {
1178 _FDT(spapr_drc_populate_dt(fdt
, 0, NULL
, SPAPR_DR_CONNECTOR_TYPE_LMB
));
1181 if (mc
->has_hotpluggable_cpus
) {
1182 int offset
= fdt_path_offset(fdt
, "/cpus");
1183 ret
= spapr_drc_populate_dt(fdt
, offset
, NULL
,
1184 SPAPR_DR_CONNECTOR_TYPE_CPU
);
1186 error_report("Couldn't set up CPU DR device tree properties");
1191 /* /event-sources */
1192 spapr_dt_events(spapr
, fdt
);
1195 spapr_dt_rtas(spapr
, fdt
);
1198 spapr_dt_chosen(spapr
, fdt
);
1201 if (kvm_enabled()) {
1202 spapr_dt_hypervisor(spapr
, fdt
);
1205 /* Build memory reserve map */
1206 if (spapr
->kernel_size
) {
1207 _FDT((fdt_add_mem_rsv(fdt
, KERNEL_LOAD_ADDR
, spapr
->kernel_size
)));
1209 if (spapr
->initrd_size
) {
1210 _FDT((fdt_add_mem_rsv(fdt
, spapr
->initrd_base
, spapr
->initrd_size
)));
1213 /* ibm,client-architecture-support updates */
1214 ret
= spapr_dt_cas_updates(spapr
, fdt
, spapr
->ov5_cas
);
1216 error_report("couldn't setup CAS properties fdt");
1223 static uint64_t translate_kernel_address(void *opaque
, uint64_t addr
)
1225 return (addr
& 0x0fffffff) + KERNEL_LOAD_ADDR
;
1228 static void emulate_spapr_hypercall(PPCVirtualHypervisor
*vhyp
,
1231 CPUPPCState
*env
= &cpu
->env
;
1233 /* The TCG path should also be holding the BQL at this point */
1234 g_assert(qemu_mutex_iothread_locked());
1237 hcall_dprintf("Hypercall made with MSR[PR]=1\n");
1238 env
->gpr
[3] = H_PRIVILEGE
;
1240 env
->gpr
[3] = spapr_hypercall(cpu
, env
->gpr
[3], &env
->gpr
[4]);
1244 static uint64_t spapr_get_patbe(PPCVirtualHypervisor
*vhyp
)
1246 sPAPRMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1248 return spapr
->patb_entry
;
1251 #define HPTE(_table, _i) (void *)(((uint64_t *)(_table)) + ((_i) * 2))
1252 #define HPTE_VALID(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_VALID)
1253 #define HPTE_DIRTY(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_HPTE_DIRTY)
1254 #define CLEAN_HPTE(_hpte) ((*(uint64_t *)(_hpte)) &= tswap64(~HPTE64_V_HPTE_DIRTY))
1255 #define DIRTY_HPTE(_hpte) ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY))
1258 * Get the fd to access the kernel htab, re-opening it if necessary
1260 static int get_htab_fd(sPAPRMachineState
*spapr
)
1262 Error
*local_err
= NULL
;
1264 if (spapr
->htab_fd
>= 0) {
1265 return spapr
->htab_fd
;
1268 spapr
->htab_fd
= kvmppc_get_htab_fd(false, 0, &local_err
);
1269 if (spapr
->htab_fd
< 0) {
1270 error_report_err(local_err
);
1273 return spapr
->htab_fd
;
1276 void close_htab_fd(sPAPRMachineState
*spapr
)
1278 if (spapr
->htab_fd
>= 0) {
1279 close(spapr
->htab_fd
);
1281 spapr
->htab_fd
= -1;
1284 static hwaddr
spapr_hpt_mask(PPCVirtualHypervisor
*vhyp
)
1286 sPAPRMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1288 return HTAB_SIZE(spapr
) / HASH_PTEG_SIZE_64
- 1;
1291 static target_ulong
spapr_encode_hpt_for_kvm_pr(PPCVirtualHypervisor
*vhyp
)
1293 sPAPRMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1295 assert(kvm_enabled());
1301 return (target_ulong
)(uintptr_t)spapr
->htab
| (spapr
->htab_shift
- 18);
1304 static const ppc_hash_pte64_t
*spapr_map_hptes(PPCVirtualHypervisor
*vhyp
,
1307 sPAPRMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1308 hwaddr pte_offset
= ptex
* HASH_PTE_SIZE_64
;
1312 * HTAB is controlled by KVM. Fetch into temporary buffer
1314 ppc_hash_pte64_t
*hptes
= g_malloc(n
* HASH_PTE_SIZE_64
);
1315 kvmppc_read_hptes(hptes
, ptex
, n
);
1320 * HTAB is controlled by QEMU. Just point to the internally
1323 return (const ppc_hash_pte64_t
*)(spapr
->htab
+ pte_offset
);
1326 static void spapr_unmap_hptes(PPCVirtualHypervisor
*vhyp
,
1327 const ppc_hash_pte64_t
*hptes
,
1330 sPAPRMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1333 g_free((void *)hptes
);
1336 /* Nothing to do for qemu managed HPT */
1339 static void spapr_store_hpte(PPCVirtualHypervisor
*vhyp
, hwaddr ptex
,
1340 uint64_t pte0
, uint64_t pte1
)
1342 sPAPRMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1343 hwaddr offset
= ptex
* HASH_PTE_SIZE_64
;
1346 kvmppc_write_hpte(ptex
, pte0
, pte1
);
1348 stq_p(spapr
->htab
+ offset
, pte0
);
1349 stq_p(spapr
->htab
+ offset
+ HASH_PTE_SIZE_64
/ 2, pte1
);
1353 int spapr_hpt_shift_for_ramsize(uint64_t ramsize
)
1357 /* We aim for a hash table of size 1/128 the size of RAM (rounded
1358 * up). The PAPR recommendation is actually 1/64 of RAM size, but
1359 * that's much more than is needed for Linux guests */
1360 shift
= ctz64(pow2ceil(ramsize
)) - 7;
1361 shift
= MAX(shift
, 18); /* Minimum architected size */
1362 shift
= MIN(shift
, 46); /* Maximum architected size */
1366 void spapr_free_hpt(sPAPRMachineState
*spapr
)
1368 g_free(spapr
->htab
);
1370 spapr
->htab_shift
= 0;
1371 close_htab_fd(spapr
);
1374 void spapr_reallocate_hpt(sPAPRMachineState
*spapr
, int shift
,
1379 /* Clean up any HPT info from a previous boot */
1380 spapr_free_hpt(spapr
);
1382 rc
= kvmppc_reset_htab(shift
);
1384 /* kernel-side HPT needed, but couldn't allocate one */
1385 error_setg_errno(errp
, errno
,
1386 "Failed to allocate KVM HPT of order %d (try smaller maxmem?)",
1388 /* This is almost certainly fatal, but if the caller really
1389 * wants to carry on with shift == 0, it's welcome to try */
1390 } else if (rc
> 0) {
1391 /* kernel-side HPT allocated */
1394 "Requested order %d HPT, but kernel allocated order %ld (try smaller maxmem?)",
1398 spapr
->htab_shift
= shift
;
1401 /* kernel-side HPT not needed, allocate in userspace instead */
1402 size_t size
= 1ULL << shift
;
1405 spapr
->htab
= qemu_memalign(size
, size
);
1407 error_setg_errno(errp
, errno
,
1408 "Could not allocate HPT of order %d", shift
);
1412 memset(spapr
->htab
, 0, size
);
1413 spapr
->htab_shift
= shift
;
1415 for (i
= 0; i
< size
/ HASH_PTE_SIZE_64
; i
++) {
1416 DIRTY_HPTE(HPTE(spapr
->htab
, i
));
1419 /* We're setting up a hash table, so that means we're not radix */
1420 spapr
->patb_entry
= 0;
1423 void spapr_setup_hpt_and_vrma(sPAPRMachineState
*spapr
)
1427 if ((spapr
->resize_hpt
== SPAPR_RESIZE_HPT_DISABLED
)
1428 || (spapr
->cas_reboot
1429 && !spapr_ovec_test(spapr
->ov5_cas
, OV5_HPT_RESIZE
))) {
1430 hpt_shift
= spapr_hpt_shift_for_ramsize(MACHINE(spapr
)->maxram_size
);
1432 uint64_t current_ram_size
;
1434 current_ram_size
= MACHINE(spapr
)->ram_size
+ get_plugged_memory_size();
1435 hpt_shift
= spapr_hpt_shift_for_ramsize(current_ram_size
);
1437 spapr_reallocate_hpt(spapr
, hpt_shift
, &error_fatal
);
1439 if (spapr
->vrma_adjust
) {
1440 spapr
->rma_size
= kvmppc_rma_size(spapr_node0_size(MACHINE(spapr
)),
1445 static void find_unknown_sysbus_device(SysBusDevice
*sbdev
, void *opaque
)
1447 bool matched
= false;
1449 if (object_dynamic_cast(OBJECT(sbdev
), TYPE_SPAPR_PCI_HOST_BRIDGE
)) {
1454 error_report("Device %s is not supported by this machine yet.",
1455 qdev_fw_name(DEVICE(sbdev
)));
1460 static int spapr_reset_drcs(Object
*child
, void *opaque
)
1462 sPAPRDRConnector
*drc
=
1463 (sPAPRDRConnector
*) object_dynamic_cast(child
,
1464 TYPE_SPAPR_DR_CONNECTOR
);
1467 spapr_drc_reset(drc
);
1473 static void spapr_machine_reset(void)
1475 MachineState
*machine
= MACHINE(qdev_get_machine());
1476 sPAPRMachineState
*spapr
= SPAPR_MACHINE(machine
);
1477 PowerPCCPU
*first_ppc_cpu
;
1478 uint32_t rtas_limit
;
1479 hwaddr rtas_addr
, fdt_addr
;
1483 /* Check for unknown sysbus devices */
1484 foreach_dynamic_sysbus_device(find_unknown_sysbus_device
, NULL
);
1486 spapr_caps_reset(spapr
);
1488 first_ppc_cpu
= POWERPC_CPU(first_cpu
);
1489 if (kvm_enabled() && kvmppc_has_cap_mmu_radix() &&
1490 ppc_check_compat(first_ppc_cpu
, CPU_POWERPC_LOGICAL_3_00
, 0,
1491 spapr
->max_compat_pvr
)) {
1492 /* If using KVM with radix mode available, VCPUs can be started
1493 * without a HPT because KVM will start them in radix mode.
1494 * Set the GR bit in PATB so that we know there is no HPT. */
1495 spapr
->patb_entry
= PATBE1_GR
;
1497 spapr_setup_hpt_and_vrma(spapr
);
1500 /* if this reset wasn't generated by CAS, we should reset our
1501 * negotiated options and start from scratch */
1502 if (!spapr
->cas_reboot
) {
1503 spapr_ovec_cleanup(spapr
->ov5_cas
);
1504 spapr
->ov5_cas
= spapr_ovec_new();
1506 ppc_set_compat(first_ppc_cpu
, spapr
->max_compat_pvr
, &error_fatal
);
1509 qemu_devices_reset();
1511 /* DRC reset may cause a device to be unplugged. This will cause troubles
1512 * if this device is used by another device (eg, a running vhost backend
1513 * will crash QEMU if the DIMM holding the vring goes away). To avoid such
1514 * situations, we reset DRCs after all devices have been reset.
1516 object_child_foreach_recursive(object_get_root(), spapr_reset_drcs
, NULL
);
1518 spapr_clear_pending_events(spapr
);
1521 * We place the device tree and RTAS just below either the top of the RMA,
1522 * or just below 2GB, whichever is lowere, so that it can be
1523 * processed with 32-bit real mode code if necessary
1525 rtas_limit
= MIN(spapr
->rma_size
, RTAS_MAX_ADDR
);
1526 rtas_addr
= rtas_limit
- RTAS_MAX_SIZE
;
1527 fdt_addr
= rtas_addr
- FDT_MAX_SIZE
;
1529 fdt
= spapr_build_fdt(spapr
, rtas_addr
, spapr
->rtas_size
);
1531 spapr_load_rtas(spapr
, fdt
, rtas_addr
);
1535 /* Should only fail if we've built a corrupted tree */
1538 if (fdt_totalsize(fdt
) > FDT_MAX_SIZE
) {
1539 error_report("FDT too big ! 0x%x bytes (max is 0x%x)",
1540 fdt_totalsize(fdt
), FDT_MAX_SIZE
);
1545 qemu_fdt_dumpdtb(fdt
, fdt_totalsize(fdt
));
1546 cpu_physical_memory_write(fdt_addr
, fdt
, fdt_totalsize(fdt
));
1549 /* Set up the entry state */
1550 first_ppc_cpu
->env
.gpr
[3] = fdt_addr
;
1551 first_ppc_cpu
->env
.gpr
[5] = 0;
1552 first_cpu
->halted
= 0;
1553 first_ppc_cpu
->env
.nip
= SPAPR_ENTRY_POINT
;
1555 spapr
->cas_reboot
= false;
1558 static void spapr_create_nvram(sPAPRMachineState
*spapr
)
1560 DeviceState
*dev
= qdev_create(&spapr
->vio_bus
->bus
, "spapr-nvram");
1561 DriveInfo
*dinfo
= drive_get(IF_PFLASH
, 0, 0);
1564 qdev_prop_set_drive(dev
, "drive", blk_by_legacy_dinfo(dinfo
),
1568 qdev_init_nofail(dev
);
1570 spapr
->nvram
= (struct sPAPRNVRAM
*)dev
;
1573 static void spapr_rtc_create(sPAPRMachineState
*spapr
)
1575 object_initialize(&spapr
->rtc
, sizeof(spapr
->rtc
), TYPE_SPAPR_RTC
);
1576 object_property_add_child(OBJECT(spapr
), "rtc", OBJECT(&spapr
->rtc
),
1578 object_property_set_bool(OBJECT(&spapr
->rtc
), true, "realized",
1580 object_property_add_alias(OBJECT(spapr
), "rtc-time", OBJECT(&spapr
->rtc
),
1581 "date", &error_fatal
);
1584 /* Returns whether we want to use VGA or not */
1585 static bool spapr_vga_init(PCIBus
*pci_bus
, Error
**errp
)
1587 switch (vga_interface_type
) {
1594 return pci_vga_init(pci_bus
) != NULL
;
1597 "Unsupported VGA mode, only -vga std or -vga virtio is supported");
1602 static int spapr_pre_load(void *opaque
)
1606 rc
= spapr_caps_pre_load(opaque
);
1614 static int spapr_post_load(void *opaque
, int version_id
)
1616 sPAPRMachineState
*spapr
= (sPAPRMachineState
*)opaque
;
1619 err
= spapr_caps_post_migration(spapr
);
1624 if (!object_dynamic_cast(OBJECT(spapr
->ics
), TYPE_ICS_KVM
)) {
1627 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
1628 icp_resend(ICP(cpu
->intc
));
1632 /* In earlier versions, there was no separate qdev for the PAPR
1633 * RTC, so the RTC offset was stored directly in sPAPREnvironment.
1634 * So when migrating from those versions, poke the incoming offset
1635 * value into the RTC device */
1636 if (version_id
< 3) {
1637 err
= spapr_rtc_import_offset(&spapr
->rtc
, spapr
->rtc_offset
);
1640 if (kvm_enabled() && spapr
->patb_entry
) {
1641 PowerPCCPU
*cpu
= POWERPC_CPU(first_cpu
);
1642 bool radix
= !!(spapr
->patb_entry
& PATBE1_GR
);
1643 bool gtse
= !!(cpu
->env
.spr
[SPR_LPCR
] & LPCR_GTSE
);
1645 err
= kvmppc_configure_v3_mmu(cpu
, radix
, gtse
, spapr
->patb_entry
);
1647 error_report("Process table config unsupported by the host");
1655 static int spapr_pre_save(void *opaque
)
1659 rc
= spapr_caps_pre_save(opaque
);
1667 static bool version_before_3(void *opaque
, int version_id
)
1669 return version_id
< 3;
1672 static bool spapr_pending_events_needed(void *opaque
)
1674 sPAPRMachineState
*spapr
= (sPAPRMachineState
*)opaque
;
1675 return !QTAILQ_EMPTY(&spapr
->pending_events
);
1678 static const VMStateDescription vmstate_spapr_event_entry
= {
1679 .name
= "spapr_event_log_entry",
1681 .minimum_version_id
= 1,
1682 .fields
= (VMStateField
[]) {
1683 VMSTATE_UINT32(summary
, sPAPREventLogEntry
),
1684 VMSTATE_UINT32(extended_length
, sPAPREventLogEntry
),
1685 VMSTATE_VBUFFER_ALLOC_UINT32(extended_log
, sPAPREventLogEntry
, 0,
1686 NULL
, extended_length
),
1687 VMSTATE_END_OF_LIST()
1691 static const VMStateDescription vmstate_spapr_pending_events
= {
1692 .name
= "spapr_pending_events",
1694 .minimum_version_id
= 1,
1695 .needed
= spapr_pending_events_needed
,
1696 .fields
= (VMStateField
[]) {
1697 VMSTATE_QTAILQ_V(pending_events
, sPAPRMachineState
, 1,
1698 vmstate_spapr_event_entry
, sPAPREventLogEntry
, next
),
1699 VMSTATE_END_OF_LIST()
1703 static bool spapr_ov5_cas_needed(void *opaque
)
1705 sPAPRMachineState
*spapr
= opaque
;
1706 sPAPROptionVector
*ov5_mask
= spapr_ovec_new();
1707 sPAPROptionVector
*ov5_legacy
= spapr_ovec_new();
1708 sPAPROptionVector
*ov5_removed
= spapr_ovec_new();
1711 /* Prior to the introduction of sPAPROptionVector, we had two option
1712 * vectors we dealt with: OV5_FORM1_AFFINITY, and OV5_DRCONF_MEMORY.
1713 * Both of these options encode machine topology into the device-tree
1714 * in such a way that the now-booted OS should still be able to interact
1715 * appropriately with QEMU regardless of what options were actually
1716 * negotiatied on the source side.
1718 * As such, we can avoid migrating the CAS-negotiated options if these
1719 * are the only options available on the current machine/platform.
1720 * Since these are the only options available for pseries-2.7 and
1721 * earlier, this allows us to maintain old->new/new->old migration
1724 * For QEMU 2.8+, there are additional CAS-negotiatable options available
1725 * via default pseries-2.8 machines and explicit command-line parameters.
1726 * Some of these options, like OV5_HP_EVT, *do* require QEMU to be aware
1727 * of the actual CAS-negotiated values to continue working properly. For
1728 * example, availability of memory unplug depends on knowing whether
1729 * OV5_HP_EVT was negotiated via CAS.
1731 * Thus, for any cases where the set of available CAS-negotiatable
1732 * options extends beyond OV5_FORM1_AFFINITY and OV5_DRCONF_MEMORY, we
1733 * include the CAS-negotiated options in the migration stream.
1735 spapr_ovec_set(ov5_mask
, OV5_FORM1_AFFINITY
);
1736 spapr_ovec_set(ov5_mask
, OV5_DRCONF_MEMORY
);
1738 /* spapr_ovec_diff returns true if bits were removed. we avoid using
1739 * the mask itself since in the future it's possible "legacy" bits may be
1740 * removed via machine options, which could generate a false positive
1741 * that breaks migration.
1743 spapr_ovec_intersect(ov5_legacy
, spapr
->ov5
, ov5_mask
);
1744 cas_needed
= spapr_ovec_diff(ov5_removed
, spapr
->ov5
, ov5_legacy
);
1746 spapr_ovec_cleanup(ov5_mask
);
1747 spapr_ovec_cleanup(ov5_legacy
);
1748 spapr_ovec_cleanup(ov5_removed
);
1753 static const VMStateDescription vmstate_spapr_ov5_cas
= {
1754 .name
= "spapr_option_vector_ov5_cas",
1756 .minimum_version_id
= 1,
1757 .needed
= spapr_ov5_cas_needed
,
1758 .fields
= (VMStateField
[]) {
1759 VMSTATE_STRUCT_POINTER_V(ov5_cas
, sPAPRMachineState
, 1,
1760 vmstate_spapr_ovec
, sPAPROptionVector
),
1761 VMSTATE_END_OF_LIST()
1765 static bool spapr_patb_entry_needed(void *opaque
)
1767 sPAPRMachineState
*spapr
= opaque
;
1769 return !!spapr
->patb_entry
;
1772 static const VMStateDescription vmstate_spapr_patb_entry
= {
1773 .name
= "spapr_patb_entry",
1775 .minimum_version_id
= 1,
1776 .needed
= spapr_patb_entry_needed
,
1777 .fields
= (VMStateField
[]) {
1778 VMSTATE_UINT64(patb_entry
, sPAPRMachineState
),
1779 VMSTATE_END_OF_LIST()
1783 static const VMStateDescription vmstate_spapr
= {
1786 .minimum_version_id
= 1,
1787 .pre_load
= spapr_pre_load
,
1788 .post_load
= spapr_post_load
,
1789 .pre_save
= spapr_pre_save
,
1790 .fields
= (VMStateField
[]) {
1791 /* used to be @next_irq */
1792 VMSTATE_UNUSED_BUFFER(version_before_3
, 0, 4),
1795 VMSTATE_UINT64_TEST(rtc_offset
, sPAPRMachineState
, version_before_3
),
1797 VMSTATE_PPC_TIMEBASE_V(tb
, sPAPRMachineState
, 2),
1798 VMSTATE_END_OF_LIST()
1800 .subsections
= (const VMStateDescription
*[]) {
1801 &vmstate_spapr_ov5_cas
,
1802 &vmstate_spapr_patb_entry
,
1803 &vmstate_spapr_pending_events
,
1804 &vmstate_spapr_cap_htm
,
1805 &vmstate_spapr_cap_vsx
,
1806 &vmstate_spapr_cap_dfp
,
1807 &vmstate_spapr_cap_cfpc
,
1808 &vmstate_spapr_cap_sbbc
,
1809 &vmstate_spapr_cap_ibs
,
1814 static int htab_save_setup(QEMUFile
*f
, void *opaque
)
1816 sPAPRMachineState
*spapr
= opaque
;
1818 /* "Iteration" header */
1819 if (!spapr
->htab_shift
) {
1820 qemu_put_be32(f
, -1);
1822 qemu_put_be32(f
, spapr
->htab_shift
);
1826 spapr
->htab_save_index
= 0;
1827 spapr
->htab_first_pass
= true;
1829 if (spapr
->htab_shift
) {
1830 assert(kvm_enabled());
1838 static void htab_save_chunk(QEMUFile
*f
, sPAPRMachineState
*spapr
,
1839 int chunkstart
, int n_valid
, int n_invalid
)
1841 qemu_put_be32(f
, chunkstart
);
1842 qemu_put_be16(f
, n_valid
);
1843 qemu_put_be16(f
, n_invalid
);
1844 qemu_put_buffer(f
, HPTE(spapr
->htab
, chunkstart
),
1845 HASH_PTE_SIZE_64
* n_valid
);
1848 static void htab_save_end_marker(QEMUFile
*f
)
1850 qemu_put_be32(f
, 0);
1851 qemu_put_be16(f
, 0);
1852 qemu_put_be16(f
, 0);
1855 static void htab_save_first_pass(QEMUFile
*f
, sPAPRMachineState
*spapr
,
1858 bool has_timeout
= max_ns
!= -1;
1859 int htabslots
= HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
;
1860 int index
= spapr
->htab_save_index
;
1861 int64_t starttime
= qemu_clock_get_ns(QEMU_CLOCK_REALTIME
);
1863 assert(spapr
->htab_first_pass
);
1868 /* Consume invalid HPTEs */
1869 while ((index
< htabslots
)
1870 && !HPTE_VALID(HPTE(spapr
->htab
, index
))) {
1871 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
1875 /* Consume valid HPTEs */
1877 while ((index
< htabslots
) && (index
- chunkstart
< USHRT_MAX
)
1878 && HPTE_VALID(HPTE(spapr
->htab
, index
))) {
1879 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
1883 if (index
> chunkstart
) {
1884 int n_valid
= index
- chunkstart
;
1886 htab_save_chunk(f
, spapr
, chunkstart
, n_valid
, 0);
1889 (qemu_clock_get_ns(QEMU_CLOCK_REALTIME
) - starttime
) > max_ns
) {
1893 } while ((index
< htabslots
) && !qemu_file_rate_limit(f
));
1895 if (index
>= htabslots
) {
1896 assert(index
== htabslots
);
1898 spapr
->htab_first_pass
= false;
1900 spapr
->htab_save_index
= index
;
1903 static int htab_save_later_pass(QEMUFile
*f
, sPAPRMachineState
*spapr
,
1906 bool final
= max_ns
< 0;
1907 int htabslots
= HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
;
1908 int examined
= 0, sent
= 0;
1909 int index
= spapr
->htab_save_index
;
1910 int64_t starttime
= qemu_clock_get_ns(QEMU_CLOCK_REALTIME
);
1912 assert(!spapr
->htab_first_pass
);
1915 int chunkstart
, invalidstart
;
1917 /* Consume non-dirty HPTEs */
1918 while ((index
< htabslots
)
1919 && !HPTE_DIRTY(HPTE(spapr
->htab
, index
))) {
1925 /* Consume valid dirty HPTEs */
1926 while ((index
< htabslots
) && (index
- chunkstart
< USHRT_MAX
)
1927 && HPTE_DIRTY(HPTE(spapr
->htab
, index
))
1928 && HPTE_VALID(HPTE(spapr
->htab
, index
))) {
1929 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
1934 invalidstart
= index
;
1935 /* Consume invalid dirty HPTEs */
1936 while ((index
< htabslots
) && (index
- invalidstart
< USHRT_MAX
)
1937 && HPTE_DIRTY(HPTE(spapr
->htab
, index
))
1938 && !HPTE_VALID(HPTE(spapr
->htab
, index
))) {
1939 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
1944 if (index
> chunkstart
) {
1945 int n_valid
= invalidstart
- chunkstart
;
1946 int n_invalid
= index
- invalidstart
;
1948 htab_save_chunk(f
, spapr
, chunkstart
, n_valid
, n_invalid
);
1949 sent
+= index
- chunkstart
;
1951 if (!final
&& (qemu_clock_get_ns(QEMU_CLOCK_REALTIME
) - starttime
) > max_ns
) {
1956 if (examined
>= htabslots
) {
1960 if (index
>= htabslots
) {
1961 assert(index
== htabslots
);
1964 } while ((examined
< htabslots
) && (!qemu_file_rate_limit(f
) || final
));
1966 if (index
>= htabslots
) {
1967 assert(index
== htabslots
);
1971 spapr
->htab_save_index
= index
;
1973 return (examined
>= htabslots
) && (sent
== 0) ? 1 : 0;
1976 #define MAX_ITERATION_NS 5000000 /* 5 ms */
1977 #define MAX_KVM_BUF_SIZE 2048
1979 static int htab_save_iterate(QEMUFile
*f
, void *opaque
)
1981 sPAPRMachineState
*spapr
= opaque
;
1985 /* Iteration header */
1986 if (!spapr
->htab_shift
) {
1987 qemu_put_be32(f
, -1);
1990 qemu_put_be32(f
, 0);
1994 assert(kvm_enabled());
1996 fd
= get_htab_fd(spapr
);
2001 rc
= kvmppc_save_htab(f
, fd
, MAX_KVM_BUF_SIZE
, MAX_ITERATION_NS
);
2005 } else if (spapr
->htab_first_pass
) {
2006 htab_save_first_pass(f
, spapr
, MAX_ITERATION_NS
);
2008 rc
= htab_save_later_pass(f
, spapr
, MAX_ITERATION_NS
);
2011 htab_save_end_marker(f
);
2016 static int htab_save_complete(QEMUFile
*f
, void *opaque
)
2018 sPAPRMachineState
*spapr
= opaque
;
2021 /* Iteration header */
2022 if (!spapr
->htab_shift
) {
2023 qemu_put_be32(f
, -1);
2026 qemu_put_be32(f
, 0);
2032 assert(kvm_enabled());
2034 fd
= get_htab_fd(spapr
);
2039 rc
= kvmppc_save_htab(f
, fd
, MAX_KVM_BUF_SIZE
, -1);
2044 if (spapr
->htab_first_pass
) {
2045 htab_save_first_pass(f
, spapr
, -1);
2047 htab_save_later_pass(f
, spapr
, -1);
2051 htab_save_end_marker(f
);
2056 static int htab_load(QEMUFile
*f
, void *opaque
, int version_id
)
2058 sPAPRMachineState
*spapr
= opaque
;
2059 uint32_t section_hdr
;
2061 Error
*local_err
= NULL
;
2063 if (version_id
< 1 || version_id
> 1) {
2064 error_report("htab_load() bad version");
2068 section_hdr
= qemu_get_be32(f
);
2070 if (section_hdr
== -1) {
2071 spapr_free_hpt(spapr
);
2076 /* First section gives the htab size */
2077 spapr_reallocate_hpt(spapr
, section_hdr
, &local_err
);
2079 error_report_err(local_err
);
2086 assert(kvm_enabled());
2088 fd
= kvmppc_get_htab_fd(true, 0, &local_err
);
2090 error_report_err(local_err
);
2097 uint16_t n_valid
, n_invalid
;
2099 index
= qemu_get_be32(f
);
2100 n_valid
= qemu_get_be16(f
);
2101 n_invalid
= qemu_get_be16(f
);
2103 if ((index
== 0) && (n_valid
== 0) && (n_invalid
== 0)) {
2108 if ((index
+ n_valid
+ n_invalid
) >
2109 (HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
)) {
2110 /* Bad index in stream */
2112 "htab_load() bad index %d (%hd+%hd entries) in htab stream (htab_shift=%d)",
2113 index
, n_valid
, n_invalid
, spapr
->htab_shift
);
2119 qemu_get_buffer(f
, HPTE(spapr
->htab
, index
),
2120 HASH_PTE_SIZE_64
* n_valid
);
2123 memset(HPTE(spapr
->htab
, index
+ n_valid
), 0,
2124 HASH_PTE_SIZE_64
* n_invalid
);
2131 rc
= kvmppc_load_htab_chunk(f
, fd
, index
, n_valid
, n_invalid
);
2146 static void htab_save_cleanup(void *opaque
)
2148 sPAPRMachineState
*spapr
= opaque
;
2150 close_htab_fd(spapr
);
2153 static SaveVMHandlers savevm_htab_handlers
= {
2154 .save_setup
= htab_save_setup
,
2155 .save_live_iterate
= htab_save_iterate
,
2156 .save_live_complete_precopy
= htab_save_complete
,
2157 .save_cleanup
= htab_save_cleanup
,
2158 .load_state
= htab_load
,
2161 static void spapr_boot_set(void *opaque
, const char *boot_device
,
2164 MachineState
*machine
= MACHINE(opaque
);
2165 machine
->boot_order
= g_strdup(boot_device
);
2168 static void spapr_create_lmb_dr_connectors(sPAPRMachineState
*spapr
)
2170 MachineState
*machine
= MACHINE(spapr
);
2171 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
2172 uint32_t nr_lmbs
= (machine
->maxram_size
- machine
->ram_size
)/lmb_size
;
2175 for (i
= 0; i
< nr_lmbs
; i
++) {
2178 addr
= i
* lmb_size
+ spapr
->hotplug_memory
.base
;
2179 spapr_dr_connector_new(OBJECT(spapr
), TYPE_SPAPR_DRC_LMB
,
2185 * If RAM size, maxmem size and individual node mem sizes aren't aligned
2186 * to SPAPR_MEMORY_BLOCK_SIZE(256MB), then refuse to start the guest
2187 * since we can't support such unaligned sizes with DRCONF_MEMORY.
2189 static void spapr_validate_node_memory(MachineState
*machine
, Error
**errp
)
2193 if (machine
->ram_size
% SPAPR_MEMORY_BLOCK_SIZE
) {
2194 error_setg(errp
, "Memory size 0x" RAM_ADDR_FMT
2195 " is not aligned to %llu MiB",
2197 SPAPR_MEMORY_BLOCK_SIZE
/ M_BYTE
);
2201 if (machine
->maxram_size
% SPAPR_MEMORY_BLOCK_SIZE
) {
2202 error_setg(errp
, "Maximum memory size 0x" RAM_ADDR_FMT
2203 " is not aligned to %llu MiB",
2205 SPAPR_MEMORY_BLOCK_SIZE
/ M_BYTE
);
2209 for (i
= 0; i
< nb_numa_nodes
; i
++) {
2210 if (numa_info
[i
].node_mem
% SPAPR_MEMORY_BLOCK_SIZE
) {
2212 "Node %d memory size 0x%" PRIx64
2213 " is not aligned to %llu MiB",
2214 i
, numa_info
[i
].node_mem
,
2215 SPAPR_MEMORY_BLOCK_SIZE
/ M_BYTE
);
2221 /* find cpu slot in machine->possible_cpus by core_id */
2222 static CPUArchId
*spapr_find_cpu_slot(MachineState
*ms
, uint32_t id
, int *idx
)
2224 int index
= id
/ smp_threads
;
2226 if (index
>= ms
->possible_cpus
->len
) {
2232 return &ms
->possible_cpus
->cpus
[index
];
2235 static void spapr_init_cpus(sPAPRMachineState
*spapr
)
2237 MachineState
*machine
= MACHINE(spapr
);
2238 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
2239 const char *type
= spapr_get_cpu_core_type(machine
->cpu_type
);
2240 const CPUArchIdList
*possible_cpus
;
2241 int boot_cores_nr
= smp_cpus
/ smp_threads
;
2244 possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
2245 if (mc
->has_hotpluggable_cpus
) {
2246 if (smp_cpus
% smp_threads
) {
2247 error_report("smp_cpus (%u) must be multiple of threads (%u)",
2248 smp_cpus
, smp_threads
);
2251 if (max_cpus
% smp_threads
) {
2252 error_report("max_cpus (%u) must be multiple of threads (%u)",
2253 max_cpus
, smp_threads
);
2257 if (max_cpus
!= smp_cpus
) {
2258 error_report("This machine version does not support CPU hotplug");
2261 boot_cores_nr
= possible_cpus
->len
;
2264 for (i
= 0; i
< possible_cpus
->len
; i
++) {
2265 int core_id
= i
* smp_threads
;
2267 if (mc
->has_hotpluggable_cpus
) {
2268 spapr_dr_connector_new(OBJECT(spapr
), TYPE_SPAPR_DRC_CPU
,
2269 spapr_vcpu_id(spapr
, core_id
));
2272 if (i
< boot_cores_nr
) {
2273 Object
*core
= object_new(type
);
2274 int nr_threads
= smp_threads
;
2276 /* Handle the partially filled core for older machine types */
2277 if ((i
+ 1) * smp_threads
>= smp_cpus
) {
2278 nr_threads
= smp_cpus
- i
* smp_threads
;
2281 object_property_set_int(core
, nr_threads
, "nr-threads",
2283 object_property_set_int(core
, core_id
, CPU_CORE_PROP_CORE_ID
,
2285 object_property_set_bool(core
, true, "realized", &error_fatal
);
2290 static void spapr_set_vsmt_mode(sPAPRMachineState
*spapr
, Error
**errp
)
2292 Error
*local_err
= NULL
;
2293 bool vsmt_user
= !!spapr
->vsmt
;
2294 int kvm_smt
= kvmppc_smt_threads();
2297 if (!kvm_enabled() && (smp_threads
> 1)) {
2298 error_setg(&local_err
, "TCG cannot support more than 1 thread/core "
2299 "on a pseries machine");
2302 if (!is_power_of_2(smp_threads
)) {
2303 error_setg(&local_err
, "Cannot support %d threads/core on a pseries "
2304 "machine because it must be a power of 2", smp_threads
);
2308 /* Detemine the VSMT mode to use: */
2310 if (spapr
->vsmt
< smp_threads
) {
2311 error_setg(&local_err
, "Cannot support VSMT mode %d"
2312 " because it must be >= threads/core (%d)",
2313 spapr
->vsmt
, smp_threads
);
2316 /* In this case, spapr->vsmt has been set by the command line */
2319 * Default VSMT value is tricky, because we need it to be as
2320 * consistent as possible (for migration), but this requires
2321 * changing it for at least some existing cases. We pick 8 as
2322 * the value that we'd get with KVM on POWER8, the
2323 * overwhelmingly common case in production systems.
2325 spapr
->vsmt
= MAX(8, smp_threads
);
2328 /* KVM: If necessary, set the SMT mode: */
2329 if (kvm_enabled() && (spapr
->vsmt
!= kvm_smt
)) {
2330 ret
= kvmppc_set_smt_threads(spapr
->vsmt
);
2332 /* Looks like KVM isn't able to change VSMT mode */
2333 error_setg(&local_err
,
2334 "Failed to set KVM's VSMT mode to %d (errno %d)",
2336 /* We can live with that if the default one is big enough
2337 * for the number of threads, and a submultiple of the one
2338 * we want. In this case we'll waste some vcpu ids, but
2339 * behaviour will be correct */
2340 if ((kvm_smt
>= smp_threads
) && ((spapr
->vsmt
% kvm_smt
) == 0)) {
2341 warn_report_err(local_err
);
2346 error_append_hint(&local_err
,
2347 "On PPC, a VM with %d threads/core"
2348 " on a host with %d threads/core"
2349 " requires the use of VSMT mode %d.\n",
2350 smp_threads
, kvm_smt
, spapr
->vsmt
);
2352 kvmppc_hint_smt_possible(&local_err
);
2357 /* else TCG: nothing to do currently */
2359 error_propagate(errp
, local_err
);
2362 /* pSeries LPAR / sPAPR hardware init */
2363 static void spapr_machine_init(MachineState
*machine
)
2365 sPAPRMachineState
*spapr
= SPAPR_MACHINE(machine
);
2366 sPAPRMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
2367 const char *kernel_filename
= machine
->kernel_filename
;
2368 const char *initrd_filename
= machine
->initrd_filename
;
2371 MemoryRegion
*sysmem
= get_system_memory();
2372 MemoryRegion
*ram
= g_new(MemoryRegion
, 1);
2373 MemoryRegion
*rma_region
;
2375 hwaddr rma_alloc_size
;
2376 hwaddr node0_size
= spapr_node0_size(machine
);
2377 long load_limit
, fw_size
;
2379 Error
*resize_hpt_err
= NULL
;
2381 msi_nonbroken
= true;
2383 QLIST_INIT(&spapr
->phbs
);
2384 QTAILQ_INIT(&spapr
->pending_dimm_unplugs
);
2386 /* Check HPT resizing availability */
2387 kvmppc_check_papr_resize_hpt(&resize_hpt_err
);
2388 if (spapr
->resize_hpt
== SPAPR_RESIZE_HPT_DEFAULT
) {
2390 * If the user explicitly requested a mode we should either
2391 * supply it, or fail completely (which we do below). But if
2392 * it's not set explicitly, we reset our mode to something
2395 if (resize_hpt_err
) {
2396 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_DISABLED
;
2397 error_free(resize_hpt_err
);
2398 resize_hpt_err
= NULL
;
2400 spapr
->resize_hpt
= smc
->resize_hpt_default
;
2404 assert(spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DEFAULT
);
2406 if ((spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DISABLED
) && resize_hpt_err
) {
2408 * User requested HPT resize, but this host can't supply it. Bail out
2410 error_report_err(resize_hpt_err
);
2414 /* Allocate RMA if necessary */
2415 rma_alloc_size
= kvmppc_alloc_rma(&rma
);
2417 if (rma_alloc_size
== -1) {
2418 error_report("Unable to create RMA");
2422 if (rma_alloc_size
&& (rma_alloc_size
< node0_size
)) {
2423 spapr
->rma_size
= rma_alloc_size
;
2425 spapr
->rma_size
= node0_size
;
2427 /* With KVM, we don't actually know whether KVM supports an
2428 * unbounded RMA (PR KVM) or is limited by the hash table size
2429 * (HV KVM using VRMA), so we always assume the latter
2431 * In that case, we also limit the initial allocations for RTAS
2432 * etc... to 256M since we have no way to know what the VRMA size
2433 * is going to be as it depends on the size of the hash table
2434 * isn't determined yet.
2436 if (kvm_enabled()) {
2437 spapr
->vrma_adjust
= 1;
2438 spapr
->rma_size
= MIN(spapr
->rma_size
, 0x10000000);
2441 /* Actually we don't support unbounded RMA anymore since we
2442 * added proper emulation of HV mode. The max we can get is
2443 * 16G which also happens to be what we configure for PAPR
2444 * mode so make sure we don't do anything bigger than that
2446 spapr
->rma_size
= MIN(spapr
->rma_size
, 0x400000000ull
);
2449 if (spapr
->rma_size
> node0_size
) {
2450 error_report("Numa node 0 has to span the RMA (%#08"HWADDR_PRIx
")",
2455 /* Setup a load limit for the ramdisk leaving room for SLOF and FDT */
2456 load_limit
= MIN(spapr
->rma_size
, RTAS_MAX_ADDR
) - FW_OVERHEAD
;
2458 /* Set up Interrupt Controller before we create the VCPUs */
2459 xics_system_init(machine
, XICS_IRQS_SPAPR
, &error_fatal
);
2461 /* Set up containers for ibm,client-architecture-support negotiated options
2463 spapr
->ov5
= spapr_ovec_new();
2464 spapr
->ov5_cas
= spapr_ovec_new();
2466 if (smc
->dr_lmb_enabled
) {
2467 spapr_ovec_set(spapr
->ov5
, OV5_DRCONF_MEMORY
);
2468 spapr_validate_node_memory(machine
, &error_fatal
);
2471 spapr_ovec_set(spapr
->ov5
, OV5_FORM1_AFFINITY
);
2472 if (!kvm_enabled() || kvmppc_has_cap_mmu_radix()) {
2473 /* KVM and TCG always allow GTSE with radix... */
2474 spapr_ovec_set(spapr
->ov5
, OV5_MMU_RADIX_GTSE
);
2476 /* ... but not with hash (currently). */
2478 /* advertise support for dedicated HP event source to guests */
2479 if (spapr
->use_hotplug_event_source
) {
2480 spapr_ovec_set(spapr
->ov5
, OV5_HP_EVT
);
2483 /* advertise support for HPT resizing */
2484 if (spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DISABLED
) {
2485 spapr_ovec_set(spapr
->ov5
, OV5_HPT_RESIZE
);
2489 spapr_set_vsmt_mode(spapr
, &error_fatal
);
2491 spapr_init_cpus(spapr
);
2493 if (kvm_enabled()) {
2494 /* Enable H_LOGICAL_CI_* so SLOF can talk to in-kernel devices */
2495 kvmppc_enable_logical_ci_hcalls();
2496 kvmppc_enable_set_mode_hcall();
2498 /* H_CLEAR_MOD/_REF are mandatory in PAPR, but off by default */
2499 kvmppc_enable_clear_ref_mod_hcalls();
2503 memory_region_allocate_system_memory(ram
, NULL
, "ppc_spapr.ram",
2505 memory_region_add_subregion(sysmem
, 0, ram
);
2507 if (rma_alloc_size
&& rma
) {
2508 rma_region
= g_new(MemoryRegion
, 1);
2509 memory_region_init_ram_ptr(rma_region
, NULL
, "ppc_spapr.rma",
2510 rma_alloc_size
, rma
);
2511 vmstate_register_ram_global(rma_region
);
2512 memory_region_add_subregion(sysmem
, 0, rma_region
);
2515 /* initialize hotplug memory address space */
2516 if (machine
->ram_size
< machine
->maxram_size
) {
2517 ram_addr_t hotplug_mem_size
= machine
->maxram_size
- machine
->ram_size
;
2519 * Limit the number of hotpluggable memory slots to half the number
2520 * slots that KVM supports, leaving the other half for PCI and other
2521 * devices. However ensure that number of slots doesn't drop below 32.
2523 int max_memslots
= kvm_enabled() ? kvm_get_max_memslots() / 2 :
2524 SPAPR_MAX_RAM_SLOTS
;
2526 if (max_memslots
< SPAPR_MAX_RAM_SLOTS
) {
2527 max_memslots
= SPAPR_MAX_RAM_SLOTS
;
2529 if (machine
->ram_slots
> max_memslots
) {
2530 error_report("Specified number of memory slots %"
2531 PRIu64
" exceeds max supported %d",
2532 machine
->ram_slots
, max_memslots
);
2536 spapr
->hotplug_memory
.base
= ROUND_UP(machine
->ram_size
,
2537 SPAPR_HOTPLUG_MEM_ALIGN
);
2538 memory_region_init(&spapr
->hotplug_memory
.mr
, OBJECT(spapr
),
2539 "hotplug-memory", hotplug_mem_size
);
2540 memory_region_add_subregion(sysmem
, spapr
->hotplug_memory
.base
,
2541 &spapr
->hotplug_memory
.mr
);
2544 if (smc
->dr_lmb_enabled
) {
2545 spapr_create_lmb_dr_connectors(spapr
);
2548 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, "spapr-rtas.bin");
2550 error_report("Could not find LPAR rtas '%s'", "spapr-rtas.bin");
2553 spapr
->rtas_size
= get_image_size(filename
);
2554 if (spapr
->rtas_size
< 0) {
2555 error_report("Could not get size of LPAR rtas '%s'", filename
);
2558 spapr
->rtas_blob
= g_malloc(spapr
->rtas_size
);
2559 if (load_image_size(filename
, spapr
->rtas_blob
, spapr
->rtas_size
) < 0) {
2560 error_report("Could not load LPAR rtas '%s'", filename
);
2563 if (spapr
->rtas_size
> RTAS_MAX_SIZE
) {
2564 error_report("RTAS too big ! 0x%zx bytes (max is 0x%x)",
2565 (size_t)spapr
->rtas_size
, RTAS_MAX_SIZE
);
2570 /* Set up RTAS event infrastructure */
2571 spapr_events_init(spapr
);
2573 /* Set up the RTC RTAS interfaces */
2574 spapr_rtc_create(spapr
);
2576 /* Set up VIO bus */
2577 spapr
->vio_bus
= spapr_vio_bus_init();
2579 for (i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
2580 if (serial_hds
[i
]) {
2581 spapr_vty_create(spapr
->vio_bus
, serial_hds
[i
]);
2585 /* We always have at least the nvram device on VIO */
2586 spapr_create_nvram(spapr
);
2589 spapr_pci_rtas_init();
2591 phb
= spapr_create_phb(spapr
, 0);
2593 for (i
= 0; i
< nb_nics
; i
++) {
2594 NICInfo
*nd
= &nd_table
[i
];
2597 nd
->model
= g_strdup("ibmveth");
2600 if (strcmp(nd
->model
, "ibmveth") == 0) {
2601 spapr_vlan_create(spapr
->vio_bus
, nd
);
2603 pci_nic_init_nofail(&nd_table
[i
], phb
->bus
, nd
->model
, NULL
);
2607 for (i
= 0; i
<= drive_get_max_bus(IF_SCSI
); i
++) {
2608 spapr_vscsi_create(spapr
->vio_bus
);
2612 if (spapr_vga_init(phb
->bus
, &error_fatal
)) {
2613 spapr
->has_graphics
= true;
2614 machine
->usb
|= defaults_enabled() && !machine
->usb_disabled
;
2618 if (smc
->use_ohci_by_default
) {
2619 pci_create_simple(phb
->bus
, -1, "pci-ohci");
2621 pci_create_simple(phb
->bus
, -1, "nec-usb-xhci");
2624 if (spapr
->has_graphics
) {
2625 USBBus
*usb_bus
= usb_bus_find(-1);
2627 usb_create_simple(usb_bus
, "usb-kbd");
2628 usb_create_simple(usb_bus
, "usb-mouse");
2632 if (spapr
->rma_size
< (MIN_RMA_SLOF
<< 20)) {
2634 "pSeries SLOF firmware requires >= %ldM guest RMA (Real Mode Area memory)",
2639 if (kernel_filename
) {
2640 uint64_t lowaddr
= 0;
2642 spapr
->kernel_size
= load_elf(kernel_filename
, translate_kernel_address
,
2643 NULL
, NULL
, &lowaddr
, NULL
, 1,
2644 PPC_ELF_MACHINE
, 0, 0);
2645 if (spapr
->kernel_size
== ELF_LOAD_WRONG_ENDIAN
) {
2646 spapr
->kernel_size
= load_elf(kernel_filename
,
2647 translate_kernel_address
, NULL
, NULL
,
2648 &lowaddr
, NULL
, 0, PPC_ELF_MACHINE
,
2650 spapr
->kernel_le
= spapr
->kernel_size
> 0;
2652 if (spapr
->kernel_size
< 0) {
2653 error_report("error loading %s: %s", kernel_filename
,
2654 load_elf_strerror(spapr
->kernel_size
));
2659 if (initrd_filename
) {
2660 /* Try to locate the initrd in the gap between the kernel
2661 * and the firmware. Add a bit of space just in case
2663 spapr
->initrd_base
= (KERNEL_LOAD_ADDR
+ spapr
->kernel_size
2664 + 0x1ffff) & ~0xffff;
2665 spapr
->initrd_size
= load_image_targphys(initrd_filename
,
2668 - spapr
->initrd_base
);
2669 if (spapr
->initrd_size
< 0) {
2670 error_report("could not load initial ram disk '%s'",
2677 if (bios_name
== NULL
) {
2678 bios_name
= FW_FILE_NAME
;
2680 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
2682 error_report("Could not find LPAR firmware '%s'", bios_name
);
2685 fw_size
= load_image_targphys(filename
, 0, FW_MAX_SIZE
);
2687 error_report("Could not load LPAR firmware '%s'", filename
);
2692 /* FIXME: Should register things through the MachineState's qdev
2693 * interface, this is a legacy from the sPAPREnvironment structure
2694 * which predated MachineState but had a similar function */
2695 vmstate_register(NULL
, 0, &vmstate_spapr
, spapr
);
2696 register_savevm_live(NULL
, "spapr/htab", -1, 1,
2697 &savevm_htab_handlers
, spapr
);
2699 qemu_register_boot_set(spapr_boot_set
, spapr
);
2701 if (kvm_enabled()) {
2702 /* to stop and start vmclock */
2703 qemu_add_vm_change_state_handler(cpu_ppc_clock_vm_state_change
,
2706 kvmppc_spapr_enable_inkernel_multitce();
2710 static int spapr_kvm_type(const char *vm_type
)
2716 if (!strcmp(vm_type
, "HV")) {
2720 if (!strcmp(vm_type
, "PR")) {
2724 error_report("Unknown kvm-type specified '%s'", vm_type
);
2729 * Implementation of an interface to adjust firmware path
2730 * for the bootindex property handling.
2732 static char *spapr_get_fw_dev_path(FWPathProvider
*p
, BusState
*bus
,
2735 #define CAST(type, obj, name) \
2736 ((type *)object_dynamic_cast(OBJECT(obj), (name)))
2737 SCSIDevice
*d
= CAST(SCSIDevice
, dev
, TYPE_SCSI_DEVICE
);
2738 sPAPRPHBState
*phb
= CAST(sPAPRPHBState
, dev
, TYPE_SPAPR_PCI_HOST_BRIDGE
);
2739 VHostSCSICommon
*vsc
= CAST(VHostSCSICommon
, dev
, TYPE_VHOST_SCSI_COMMON
);
2742 void *spapr
= CAST(void, bus
->parent
, "spapr-vscsi");
2743 VirtIOSCSI
*virtio
= CAST(VirtIOSCSI
, bus
->parent
, TYPE_VIRTIO_SCSI
);
2744 USBDevice
*usb
= CAST(USBDevice
, bus
->parent
, TYPE_USB_DEVICE
);
2748 * Replace "channel@0/disk@0,0" with "disk@8000000000000000":
2749 * We use SRP luns of the form 8000 | (bus << 8) | (id << 5) | lun
2750 * in the top 16 bits of the 64-bit LUN
2752 unsigned id
= 0x8000 | (d
->id
<< 8) | d
->lun
;
2753 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
2754 (uint64_t)id
<< 48);
2755 } else if (virtio
) {
2757 * We use SRP luns of the form 01000000 | (target << 8) | lun
2758 * in the top 32 bits of the 64-bit LUN
2759 * Note: the quote above is from SLOF and it is wrong,
2760 * the actual binding is:
2761 * swap 0100 or 10 << or 20 << ( target lun-id -- srplun )
2763 unsigned id
= 0x1000000 | (d
->id
<< 16) | d
->lun
;
2764 if (d
->lun
>= 256) {
2765 /* Use the LUN "flat space addressing method" */
2768 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
2769 (uint64_t)id
<< 32);
2772 * We use SRP luns of the form 01000000 | (usb-port << 16) | lun
2773 * in the top 32 bits of the 64-bit LUN
2775 unsigned usb_port
= atoi(usb
->port
->path
);
2776 unsigned id
= 0x1000000 | (usb_port
<< 16) | d
->lun
;
2777 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
2778 (uint64_t)id
<< 32);
2783 * SLOF probes the USB devices, and if it recognizes that the device is a
2784 * storage device, it changes its name to "storage" instead of "usb-host",
2785 * and additionally adds a child node for the SCSI LUN, so the correct
2786 * boot path in SLOF is something like .../storage@1/disk@xxx" instead.
2788 if (strcmp("usb-host", qdev_fw_name(dev
)) == 0) {
2789 USBDevice
*usbdev
= CAST(USBDevice
, dev
, TYPE_USB_DEVICE
);
2790 if (usb_host_dev_is_scsi_storage(usbdev
)) {
2791 return g_strdup_printf("storage@%s/disk", usbdev
->port
->path
);
2796 /* Replace "pci" with "pci@800000020000000" */
2797 return g_strdup_printf("pci@%"PRIX64
, phb
->buid
);
2801 /* Same logic as virtio above */
2802 unsigned id
= 0x1000000 | (vsc
->target
<< 16) | vsc
->lun
;
2803 return g_strdup_printf("disk@%"PRIX64
, (uint64_t)id
<< 32);
2806 if (g_str_equal("pci-bridge", qdev_fw_name(dev
))) {
2807 /* SLOF uses "pci" instead of "pci-bridge" for PCI bridges */
2808 PCIDevice
*pcidev
= CAST(PCIDevice
, dev
, TYPE_PCI_DEVICE
);
2809 return g_strdup_printf("pci@%x", PCI_SLOT(pcidev
->devfn
));
2815 static char *spapr_get_kvm_type(Object
*obj
, Error
**errp
)
2817 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2819 return g_strdup(spapr
->kvm_type
);
2822 static void spapr_set_kvm_type(Object
*obj
, const char *value
, Error
**errp
)
2824 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2826 g_free(spapr
->kvm_type
);
2827 spapr
->kvm_type
= g_strdup(value
);
2830 static bool spapr_get_modern_hotplug_events(Object
*obj
, Error
**errp
)
2832 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2834 return spapr
->use_hotplug_event_source
;
2837 static void spapr_set_modern_hotplug_events(Object
*obj
, bool value
,
2840 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2842 spapr
->use_hotplug_event_source
= value
;
2845 static char *spapr_get_resize_hpt(Object
*obj
, Error
**errp
)
2847 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2849 switch (spapr
->resize_hpt
) {
2850 case SPAPR_RESIZE_HPT_DEFAULT
:
2851 return g_strdup("default");
2852 case SPAPR_RESIZE_HPT_DISABLED
:
2853 return g_strdup("disabled");
2854 case SPAPR_RESIZE_HPT_ENABLED
:
2855 return g_strdup("enabled");
2856 case SPAPR_RESIZE_HPT_REQUIRED
:
2857 return g_strdup("required");
2859 g_assert_not_reached();
2862 static void spapr_set_resize_hpt(Object
*obj
, const char *value
, Error
**errp
)
2864 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2866 if (strcmp(value
, "default") == 0) {
2867 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_DEFAULT
;
2868 } else if (strcmp(value
, "disabled") == 0) {
2869 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_DISABLED
;
2870 } else if (strcmp(value
, "enabled") == 0) {
2871 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_ENABLED
;
2872 } else if (strcmp(value
, "required") == 0) {
2873 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_REQUIRED
;
2875 error_setg(errp
, "Bad value for \"resize-hpt\" property");
2879 static void spapr_get_vsmt(Object
*obj
, Visitor
*v
, const char *name
,
2880 void *opaque
, Error
**errp
)
2882 visit_type_uint32(v
, name
, (uint32_t *)opaque
, errp
);
2885 static void spapr_set_vsmt(Object
*obj
, Visitor
*v
, const char *name
,
2886 void *opaque
, Error
**errp
)
2888 visit_type_uint32(v
, name
, (uint32_t *)opaque
, errp
);
2891 static void spapr_instance_init(Object
*obj
)
2893 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2895 spapr
->htab_fd
= -1;
2896 spapr
->use_hotplug_event_source
= true;
2897 object_property_add_str(obj
, "kvm-type",
2898 spapr_get_kvm_type
, spapr_set_kvm_type
, NULL
);
2899 object_property_set_description(obj
, "kvm-type",
2900 "Specifies the KVM virtualization mode (HV, PR)",
2902 object_property_add_bool(obj
, "modern-hotplug-events",
2903 spapr_get_modern_hotplug_events
,
2904 spapr_set_modern_hotplug_events
,
2906 object_property_set_description(obj
, "modern-hotplug-events",
2907 "Use dedicated hotplug event mechanism in"
2908 " place of standard EPOW events when possible"
2909 " (required for memory hot-unplug support)",
2912 ppc_compat_add_property(obj
, "max-cpu-compat", &spapr
->max_compat_pvr
,
2913 "Maximum permitted CPU compatibility mode",
2916 object_property_add_str(obj
, "resize-hpt",
2917 spapr_get_resize_hpt
, spapr_set_resize_hpt
, NULL
);
2918 object_property_set_description(obj
, "resize-hpt",
2919 "Resizing of the Hash Page Table (enabled, disabled, required)",
2921 object_property_add(obj
, "vsmt", "uint32", spapr_get_vsmt
,
2922 spapr_set_vsmt
, NULL
, &spapr
->vsmt
, &error_abort
);
2923 object_property_set_description(obj
, "vsmt",
2924 "Virtual SMT: KVM behaves as if this were"
2925 " the host's SMT mode", &error_abort
);
2928 static void spapr_machine_finalizefn(Object
*obj
)
2930 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2932 g_free(spapr
->kvm_type
);
2935 void spapr_do_system_reset_on_cpu(CPUState
*cs
, run_on_cpu_data arg
)
2937 cpu_synchronize_state(cs
);
2938 ppc_cpu_do_system_reset(cs
);
2941 static void spapr_nmi(NMIState
*n
, int cpu_index
, Error
**errp
)
2946 async_run_on_cpu(cs
, spapr_do_system_reset_on_cpu
, RUN_ON_CPU_NULL
);
2950 static void spapr_add_lmbs(DeviceState
*dev
, uint64_t addr_start
, uint64_t size
,
2951 uint32_t node
, bool dedicated_hp_event_source
,
2954 sPAPRDRConnector
*drc
;
2955 uint32_t nr_lmbs
= size
/SPAPR_MEMORY_BLOCK_SIZE
;
2956 int i
, fdt_offset
, fdt_size
;
2958 uint64_t addr
= addr_start
;
2959 bool hotplugged
= spapr_drc_hotplugged(dev
);
2960 Error
*local_err
= NULL
;
2962 for (i
= 0; i
< nr_lmbs
; i
++) {
2963 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
2964 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
2967 fdt
= create_device_tree(&fdt_size
);
2968 fdt_offset
= spapr_populate_memory_node(fdt
, node
, addr
,
2969 SPAPR_MEMORY_BLOCK_SIZE
);
2971 spapr_drc_attach(drc
, dev
, fdt
, fdt_offset
, &local_err
);
2973 while (addr
> addr_start
) {
2974 addr
-= SPAPR_MEMORY_BLOCK_SIZE
;
2975 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
2976 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
2977 spapr_drc_detach(drc
);
2980 error_propagate(errp
, local_err
);
2984 spapr_drc_reset(drc
);
2986 addr
+= SPAPR_MEMORY_BLOCK_SIZE
;
2988 /* send hotplug notification to the
2989 * guest only in case of hotplugged memory
2992 if (dedicated_hp_event_source
) {
2993 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
2994 addr_start
/ SPAPR_MEMORY_BLOCK_SIZE
);
2995 spapr_hotplug_req_add_by_count_indexed(SPAPR_DR_CONNECTOR_TYPE_LMB
,
2997 spapr_drc_index(drc
));
2999 spapr_hotplug_req_add_by_count(SPAPR_DR_CONNECTOR_TYPE_LMB
,
3005 static void spapr_memory_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3006 uint32_t node
, Error
**errp
)
3008 Error
*local_err
= NULL
;
3009 sPAPRMachineState
*ms
= SPAPR_MACHINE(hotplug_dev
);
3010 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
3011 PCDIMMDeviceClass
*ddc
= PC_DIMM_GET_CLASS(dimm
);
3013 uint64_t align
, size
, addr
;
3015 mr
= ddc
->get_memory_region(dimm
, &local_err
);
3019 align
= memory_region_get_alignment(mr
);
3020 size
= memory_region_size(mr
);
3022 pc_dimm_memory_plug(dev
, &ms
->hotplug_memory
, mr
, align
, &local_err
);
3027 addr
= object_property_get_uint(OBJECT(dimm
),
3028 PC_DIMM_ADDR_PROP
, &local_err
);
3033 spapr_add_lmbs(dev
, addr
, size
, node
,
3034 spapr_ovec_test(ms
->ov5_cas
, OV5_HP_EVT
),
3043 pc_dimm_memory_unplug(dev
, &ms
->hotplug_memory
, mr
);
3045 error_propagate(errp
, local_err
);
3048 static void spapr_memory_pre_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3051 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
3052 PCDIMMDeviceClass
*ddc
= PC_DIMM_GET_CLASS(dimm
);
3057 mr
= ddc
->get_memory_region(dimm
, errp
);
3061 size
= memory_region_size(mr
);
3063 if (size
% SPAPR_MEMORY_BLOCK_SIZE
) {
3064 error_setg(errp
, "Hotplugged memory size must be a multiple of "
3065 "%lld MB", SPAPR_MEMORY_BLOCK_SIZE
/ M_BYTE
);
3069 mem_dev
= object_property_get_str(OBJECT(dimm
), PC_DIMM_MEMDEV_PROP
, NULL
);
3070 if (mem_dev
&& !kvmppc_is_mem_backend_page_size_ok(mem_dev
)) {
3071 error_setg(errp
, "Memory backend has bad page size. "
3072 "Use 'memory-backend-file' with correct mem-path.");
3080 struct sPAPRDIMMState
{
3083 QTAILQ_ENTRY(sPAPRDIMMState
) next
;
3086 static sPAPRDIMMState
*spapr_pending_dimm_unplugs_find(sPAPRMachineState
*s
,
3089 sPAPRDIMMState
*dimm_state
= NULL
;
3091 QTAILQ_FOREACH(dimm_state
, &s
->pending_dimm_unplugs
, next
) {
3092 if (dimm_state
->dimm
== dimm
) {
3099 static sPAPRDIMMState
*spapr_pending_dimm_unplugs_add(sPAPRMachineState
*spapr
,
3103 sPAPRDIMMState
*ds
= NULL
;
3106 * If this request is for a DIMM whose removal had failed earlier
3107 * (due to guest's refusal to remove the LMBs), we would have this
3108 * dimm already in the pending_dimm_unplugs list. In that
3109 * case don't add again.
3111 ds
= spapr_pending_dimm_unplugs_find(spapr
, dimm
);
3113 ds
= g_malloc0(sizeof(sPAPRDIMMState
));
3114 ds
->nr_lmbs
= nr_lmbs
;
3116 QTAILQ_INSERT_HEAD(&spapr
->pending_dimm_unplugs
, ds
, next
);
3121 static void spapr_pending_dimm_unplugs_remove(sPAPRMachineState
*spapr
,
3122 sPAPRDIMMState
*dimm_state
)
3124 QTAILQ_REMOVE(&spapr
->pending_dimm_unplugs
, dimm_state
, next
);
3128 static sPAPRDIMMState
*spapr_recover_pending_dimm_state(sPAPRMachineState
*ms
,
3131 sPAPRDRConnector
*drc
;
3132 PCDIMMDeviceClass
*ddc
= PC_DIMM_GET_CLASS(dimm
);
3133 MemoryRegion
*mr
= ddc
->get_memory_region(dimm
, &error_abort
);
3134 uint64_t size
= memory_region_size(mr
);
3135 uint32_t nr_lmbs
= size
/ SPAPR_MEMORY_BLOCK_SIZE
;
3136 uint32_t avail_lmbs
= 0;
3137 uint64_t addr_start
, addr
;
3140 addr_start
= object_property_get_int(OBJECT(dimm
), PC_DIMM_ADDR_PROP
,
3144 for (i
= 0; i
< nr_lmbs
; i
++) {
3145 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3146 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
3151 addr
+= SPAPR_MEMORY_BLOCK_SIZE
;
3154 return spapr_pending_dimm_unplugs_add(ms
, avail_lmbs
, dimm
);
3157 /* Callback to be called during DRC release. */
3158 void spapr_lmb_release(DeviceState
*dev
)
3160 sPAPRMachineState
*spapr
= SPAPR_MACHINE(qdev_get_hotplug_handler(dev
));
3161 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
3162 PCDIMMDeviceClass
*ddc
= PC_DIMM_GET_CLASS(dimm
);
3163 MemoryRegion
*mr
= ddc
->get_memory_region(dimm
, &error_abort
);
3164 sPAPRDIMMState
*ds
= spapr_pending_dimm_unplugs_find(spapr
, PC_DIMM(dev
));
3166 /* This information will get lost if a migration occurs
3167 * during the unplug process. In this case recover it. */
3169 ds
= spapr_recover_pending_dimm_state(spapr
, PC_DIMM(dev
));
3171 /* The DRC being examined by the caller at least must be counted */
3172 g_assert(ds
->nr_lmbs
);
3175 if (--ds
->nr_lmbs
) {
3180 * Now that all the LMBs have been removed by the guest, call the
3181 * pc-dimm unplug handler to cleanup up the pc-dimm device.
3183 pc_dimm_memory_unplug(dev
, &spapr
->hotplug_memory
, mr
);
3184 object_unparent(OBJECT(dev
));
3185 spapr_pending_dimm_unplugs_remove(spapr
, ds
);
3188 static void spapr_memory_unplug_request(HotplugHandler
*hotplug_dev
,
3189 DeviceState
*dev
, Error
**errp
)
3191 sPAPRMachineState
*spapr
= SPAPR_MACHINE(hotplug_dev
);
3192 Error
*local_err
= NULL
;
3193 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
3194 PCDIMMDeviceClass
*ddc
= PC_DIMM_GET_CLASS(dimm
);
3197 uint64_t size
, addr_start
, addr
;
3199 sPAPRDRConnector
*drc
;
3201 mr
= ddc
->get_memory_region(dimm
, &local_err
);
3205 size
= memory_region_size(mr
);
3206 nr_lmbs
= size
/ SPAPR_MEMORY_BLOCK_SIZE
;
3208 addr_start
= object_property_get_uint(OBJECT(dimm
), PC_DIMM_ADDR_PROP
,
3215 * An existing pending dimm state for this DIMM means that there is an
3216 * unplug operation in progress, waiting for the spapr_lmb_release
3217 * callback to complete the job (BQL can't cover that far). In this case,
3218 * bail out to avoid detaching DRCs that were already released.
3220 if (spapr_pending_dimm_unplugs_find(spapr
, dimm
)) {
3221 error_setg(&local_err
,
3222 "Memory unplug already in progress for device %s",
3227 spapr_pending_dimm_unplugs_add(spapr
, nr_lmbs
, dimm
);
3230 for (i
= 0; i
< nr_lmbs
; i
++) {
3231 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3232 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
3235 spapr_drc_detach(drc
);
3236 addr
+= SPAPR_MEMORY_BLOCK_SIZE
;
3239 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3240 addr_start
/ SPAPR_MEMORY_BLOCK_SIZE
);
3241 spapr_hotplug_req_remove_by_count_indexed(SPAPR_DR_CONNECTOR_TYPE_LMB
,
3242 nr_lmbs
, spapr_drc_index(drc
));
3244 error_propagate(errp
, local_err
);
3247 static void *spapr_populate_hotplug_cpu_dt(CPUState
*cs
, int *fdt_offset
,
3248 sPAPRMachineState
*spapr
)
3250 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
3251 DeviceClass
*dc
= DEVICE_GET_CLASS(cs
);
3252 int id
= spapr_get_vcpu_id(cpu
);
3254 int offset
, fdt_size
;
3257 fdt
= create_device_tree(&fdt_size
);
3258 nodename
= g_strdup_printf("%s@%x", dc
->fw_name
, id
);
3259 offset
= fdt_add_subnode(fdt
, 0, nodename
);
3261 spapr_populate_cpu_dt(cs
, fdt
, offset
, spapr
);
3264 *fdt_offset
= offset
;
3268 /* Callback to be called during DRC release. */
3269 void spapr_core_release(DeviceState
*dev
)
3271 MachineState
*ms
= MACHINE(qdev_get_hotplug_handler(dev
));
3272 sPAPRMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(ms
);
3273 CPUCore
*cc
= CPU_CORE(dev
);
3274 CPUArchId
*core_slot
= spapr_find_cpu_slot(ms
, cc
->core_id
, NULL
);
3276 if (smc
->pre_2_10_has_unused_icps
) {
3277 sPAPRCPUCore
*sc
= SPAPR_CPU_CORE(OBJECT(dev
));
3280 for (i
= 0; i
< cc
->nr_threads
; i
++) {
3281 CPUState
*cs
= CPU(sc
->threads
[i
]);
3283 pre_2_10_vmstate_register_dummy_icp(cs
->cpu_index
);
3288 core_slot
->cpu
= NULL
;
3289 object_unparent(OBJECT(dev
));
3293 void spapr_core_unplug_request(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3296 sPAPRMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
3298 sPAPRDRConnector
*drc
;
3299 CPUCore
*cc
= CPU_CORE(dev
);
3301 if (!spapr_find_cpu_slot(MACHINE(hotplug_dev
), cc
->core_id
, &index
)) {
3302 error_setg(errp
, "Unable to find CPU core with core-id: %d",
3307 error_setg(errp
, "Boot CPU core may not be unplugged");
3311 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_CPU
,
3312 spapr_vcpu_id(spapr
, cc
->core_id
));
3315 spapr_drc_detach(drc
);
3317 spapr_hotplug_req_remove_by_index(drc
);
3320 static void spapr_core_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3323 sPAPRMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
3324 MachineClass
*mc
= MACHINE_GET_CLASS(spapr
);
3325 sPAPRMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
3326 sPAPRCPUCore
*core
= SPAPR_CPU_CORE(OBJECT(dev
));
3327 CPUCore
*cc
= CPU_CORE(dev
);
3328 CPUState
*cs
= CPU(core
->threads
[0]);
3329 sPAPRDRConnector
*drc
;
3330 Error
*local_err
= NULL
;
3331 CPUArchId
*core_slot
;
3333 bool hotplugged
= spapr_drc_hotplugged(dev
);
3335 core_slot
= spapr_find_cpu_slot(MACHINE(hotplug_dev
), cc
->core_id
, &index
);
3337 error_setg(errp
, "Unable to find CPU core with core-id: %d",
3341 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_CPU
,
3342 spapr_vcpu_id(spapr
, cc
->core_id
));
3344 g_assert(drc
|| !mc
->has_hotpluggable_cpus
);
3350 fdt
= spapr_populate_hotplug_cpu_dt(cs
, &fdt_offset
, spapr
);
3352 spapr_drc_attach(drc
, dev
, fdt
, fdt_offset
, &local_err
);
3355 error_propagate(errp
, local_err
);
3361 * Send hotplug notification interrupt to the guest only
3362 * in case of hotplugged CPUs.
3364 spapr_hotplug_req_add_by_index(drc
);
3366 spapr_drc_reset(drc
);
3370 core_slot
->cpu
= OBJECT(dev
);
3372 if (smc
->pre_2_10_has_unused_icps
) {
3375 for (i
= 0; i
< cc
->nr_threads
; i
++) {
3376 cs
= CPU(core
->threads
[i
]);
3377 pre_2_10_vmstate_unregister_dummy_icp(cs
->cpu_index
);
3382 static void spapr_core_pre_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3385 MachineState
*machine
= MACHINE(OBJECT(hotplug_dev
));
3386 MachineClass
*mc
= MACHINE_GET_CLASS(hotplug_dev
);
3387 Error
*local_err
= NULL
;
3388 CPUCore
*cc
= CPU_CORE(dev
);
3389 const char *base_core_type
= spapr_get_cpu_core_type(machine
->cpu_type
);
3390 const char *type
= object_get_typename(OBJECT(dev
));
3391 CPUArchId
*core_slot
;
3394 if (dev
->hotplugged
&& !mc
->has_hotpluggable_cpus
) {
3395 error_setg(&local_err
, "CPU hotplug not supported for this machine");
3399 if (strcmp(base_core_type
, type
)) {
3400 error_setg(&local_err
, "CPU core type should be %s", base_core_type
);
3404 if (cc
->core_id
% smp_threads
) {
3405 error_setg(&local_err
, "invalid core id %d", cc
->core_id
);
3410 * In general we should have homogeneous threads-per-core, but old
3411 * (pre hotplug support) machine types allow the last core to have
3412 * reduced threads as a compatibility hack for when we allowed
3413 * total vcpus not a multiple of threads-per-core.
3415 if (mc
->has_hotpluggable_cpus
&& (cc
->nr_threads
!= smp_threads
)) {
3416 error_setg(&local_err
, "invalid nr-threads %d, must be %d",
3417 cc
->nr_threads
, smp_threads
);
3421 core_slot
= spapr_find_cpu_slot(MACHINE(hotplug_dev
), cc
->core_id
, &index
);
3423 error_setg(&local_err
, "core id %d out of range", cc
->core_id
);
3427 if (core_slot
->cpu
) {
3428 error_setg(&local_err
, "core %d already populated", cc
->core_id
);
3432 numa_cpu_pre_plug(core_slot
, dev
, &local_err
);
3435 error_propagate(errp
, local_err
);
3438 static void spapr_machine_device_plug(HotplugHandler
*hotplug_dev
,
3439 DeviceState
*dev
, Error
**errp
)
3441 MachineState
*ms
= MACHINE(hotplug_dev
);
3442 sPAPRMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(ms
);
3444 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
3447 if (!smc
->dr_lmb_enabled
) {
3448 error_setg(errp
, "Memory hotplug not supported for this machine");
3451 node
= object_property_get_uint(OBJECT(dev
), PC_DIMM_NODE_PROP
, errp
);
3455 if (node
< 0 || node
>= MAX_NODES
) {
3456 error_setg(errp
, "Invaild node %d", node
);
3461 * Currently PowerPC kernel doesn't allow hot-adding memory to
3462 * memory-less node, but instead will silently add the memory
3463 * to the first node that has some memory. This causes two
3464 * unexpected behaviours for the user.
3466 * - Memory gets hotplugged to a different node than what the user
3468 * - Since pc-dimm subsystem in QEMU still thinks that memory belongs
3469 * to memory-less node, a reboot will set things accordingly
3470 * and the previously hotplugged memory now ends in the right node.
3471 * This appears as if some memory moved from one node to another.
3473 * So until kernel starts supporting memory hotplug to memory-less
3474 * nodes, just prevent such attempts upfront in QEMU.
3476 if (nb_numa_nodes
&& !numa_info
[node
].node_mem
) {
3477 error_setg(errp
, "Can't hotplug memory to memory-less node %d",
3482 spapr_memory_plug(hotplug_dev
, dev
, node
, errp
);
3483 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
3484 spapr_core_plug(hotplug_dev
, dev
, errp
);
3488 static void spapr_machine_device_unplug_request(HotplugHandler
*hotplug_dev
,
3489 DeviceState
*dev
, Error
**errp
)
3491 sPAPRMachineState
*sms
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
3492 MachineClass
*mc
= MACHINE_GET_CLASS(sms
);
3494 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
3495 if (spapr_ovec_test(sms
->ov5_cas
, OV5_HP_EVT
)) {
3496 spapr_memory_unplug_request(hotplug_dev
, dev
, errp
);
3498 /* NOTE: this means there is a window after guest reset, prior to
3499 * CAS negotiation, where unplug requests will fail due to the
3500 * capability not being detected yet. This is a bit different than
3501 * the case with PCI unplug, where the events will be queued and
3502 * eventually handled by the guest after boot
3504 error_setg(errp
, "Memory hot unplug not supported for this guest");
3506 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
3507 if (!mc
->has_hotpluggable_cpus
) {
3508 error_setg(errp
, "CPU hot unplug not supported on this machine");
3511 spapr_core_unplug_request(hotplug_dev
, dev
, errp
);
3515 static void spapr_machine_device_pre_plug(HotplugHandler
*hotplug_dev
,
3516 DeviceState
*dev
, Error
**errp
)
3518 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
3519 spapr_memory_pre_plug(hotplug_dev
, dev
, errp
);
3520 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
3521 spapr_core_pre_plug(hotplug_dev
, dev
, errp
);
3525 static HotplugHandler
*spapr_get_hotplug_handler(MachineState
*machine
,
3528 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
) ||
3529 object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
3530 return HOTPLUG_HANDLER(machine
);
3535 static CpuInstanceProperties
3536 spapr_cpu_index_to_props(MachineState
*machine
, unsigned cpu_index
)
3538 CPUArchId
*core_slot
;
3539 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
3541 /* make sure possible_cpu are intialized */
3542 mc
->possible_cpu_arch_ids(machine
);
3543 /* get CPU core slot containing thread that matches cpu_index */
3544 core_slot
= spapr_find_cpu_slot(machine
, cpu_index
, NULL
);
3546 return core_slot
->props
;
3549 static int64_t spapr_get_default_cpu_node_id(const MachineState
*ms
, int idx
)
3551 return idx
/ smp_cores
% nb_numa_nodes
;
3554 static const CPUArchIdList
*spapr_possible_cpu_arch_ids(MachineState
*machine
)
3557 const char *core_type
;
3558 int spapr_max_cores
= max_cpus
/ smp_threads
;
3559 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
3561 if (!mc
->has_hotpluggable_cpus
) {
3562 spapr_max_cores
= QEMU_ALIGN_UP(smp_cpus
, smp_threads
) / smp_threads
;
3564 if (machine
->possible_cpus
) {
3565 assert(machine
->possible_cpus
->len
== spapr_max_cores
);
3566 return machine
->possible_cpus
;
3569 core_type
= spapr_get_cpu_core_type(machine
->cpu_type
);
3571 error_report("Unable to find sPAPR CPU Core definition");
3575 machine
->possible_cpus
= g_malloc0(sizeof(CPUArchIdList
) +
3576 sizeof(CPUArchId
) * spapr_max_cores
);
3577 machine
->possible_cpus
->len
= spapr_max_cores
;
3578 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
3579 int core_id
= i
* smp_threads
;
3581 machine
->possible_cpus
->cpus
[i
].type
= core_type
;
3582 machine
->possible_cpus
->cpus
[i
].vcpus_count
= smp_threads
;
3583 machine
->possible_cpus
->cpus
[i
].arch_id
= core_id
;
3584 machine
->possible_cpus
->cpus
[i
].props
.has_core_id
= true;
3585 machine
->possible_cpus
->cpus
[i
].props
.core_id
= core_id
;
3587 return machine
->possible_cpus
;
3590 static void spapr_phb_placement(sPAPRMachineState
*spapr
, uint32_t index
,
3591 uint64_t *buid
, hwaddr
*pio
,
3592 hwaddr
*mmio32
, hwaddr
*mmio64
,
3593 unsigned n_dma
, uint32_t *liobns
, Error
**errp
)
3596 * New-style PHB window placement.
3598 * Goals: Gives large (1TiB), naturally aligned 64-bit MMIO window
3599 * for each PHB, in addition to 2GiB 32-bit MMIO and 64kiB PIO
3602 * Some guest kernels can't work with MMIO windows above 1<<46
3603 * (64TiB), so we place up to 31 PHBs in the area 32TiB..64TiB
3605 * 32TiB..(33TiB+1984kiB) contains the 64kiB PIO windows for each
3606 * PHB stacked together. (32TiB+2GiB)..(32TiB+64GiB) contains the
3607 * 2GiB 32-bit MMIO windows for each PHB. Then 33..64TiB has the
3608 * 1TiB 64-bit MMIO windows for each PHB.
3610 const uint64_t base_buid
= 0x800000020000000ULL
;
3611 #define SPAPR_MAX_PHBS ((SPAPR_PCI_LIMIT - SPAPR_PCI_BASE) / \
3612 SPAPR_PCI_MEM64_WIN_SIZE - 1)
3615 /* Sanity check natural alignments */
3616 QEMU_BUILD_BUG_ON((SPAPR_PCI_BASE
% SPAPR_PCI_MEM64_WIN_SIZE
) != 0);
3617 QEMU_BUILD_BUG_ON((SPAPR_PCI_LIMIT
% SPAPR_PCI_MEM64_WIN_SIZE
) != 0);
3618 QEMU_BUILD_BUG_ON((SPAPR_PCI_MEM64_WIN_SIZE
% SPAPR_PCI_MEM32_WIN_SIZE
) != 0);
3619 QEMU_BUILD_BUG_ON((SPAPR_PCI_MEM32_WIN_SIZE
% SPAPR_PCI_IO_WIN_SIZE
) != 0);
3620 /* Sanity check bounds */
3621 QEMU_BUILD_BUG_ON((SPAPR_MAX_PHBS
* SPAPR_PCI_IO_WIN_SIZE
) >
3622 SPAPR_PCI_MEM32_WIN_SIZE
);
3623 QEMU_BUILD_BUG_ON((SPAPR_MAX_PHBS
* SPAPR_PCI_MEM32_WIN_SIZE
) >
3624 SPAPR_PCI_MEM64_WIN_SIZE
);
3626 if (index
>= SPAPR_MAX_PHBS
) {
3627 error_setg(errp
, "\"index\" for PAPR PHB is too large (max %llu)",
3628 SPAPR_MAX_PHBS
- 1);
3632 *buid
= base_buid
+ index
;
3633 for (i
= 0; i
< n_dma
; ++i
) {
3634 liobns
[i
] = SPAPR_PCI_LIOBN(index
, i
);
3637 *pio
= SPAPR_PCI_BASE
+ index
* SPAPR_PCI_IO_WIN_SIZE
;
3638 *mmio32
= SPAPR_PCI_BASE
+ (index
+ 1) * SPAPR_PCI_MEM32_WIN_SIZE
;
3639 *mmio64
= SPAPR_PCI_BASE
+ (index
+ 1) * SPAPR_PCI_MEM64_WIN_SIZE
;
3642 static ICSState
*spapr_ics_get(XICSFabric
*dev
, int irq
)
3644 sPAPRMachineState
*spapr
= SPAPR_MACHINE(dev
);
3646 return ics_valid_irq(spapr
->ics
, irq
) ? spapr
->ics
: NULL
;
3649 static void spapr_ics_resend(XICSFabric
*dev
)
3651 sPAPRMachineState
*spapr
= SPAPR_MACHINE(dev
);
3653 ics_resend(spapr
->ics
);
3656 static ICPState
*spapr_icp_get(XICSFabric
*xi
, int vcpu_id
)
3658 PowerPCCPU
*cpu
= spapr_find_cpu(vcpu_id
);
3660 return cpu
? ICP(cpu
->intc
) : NULL
;
3663 #define ICS_IRQ_FREE(ics, srcno) \
3664 (!((ics)->irqs[(srcno)].flags & (XICS_FLAGS_IRQ_MASK)))
3666 static int ics_find_free_block(ICSState
*ics
, int num
, int alignnum
)
3670 for (first
= 0; first
< ics
->nr_irqs
; first
+= alignnum
) {
3671 if (num
> (ics
->nr_irqs
- first
)) {
3674 for (i
= first
; i
< first
+ num
; ++i
) {
3675 if (!ICS_IRQ_FREE(ics
, i
)) {
3679 if (i
== (first
+ num
)) {
3688 * Allocate the IRQ number and set the IRQ type, LSI or MSI
3690 static void spapr_irq_set_lsi(sPAPRMachineState
*spapr
, int irq
, bool lsi
)
3692 ics_set_irq_type(spapr
->ics
, irq
- spapr
->ics
->offset
, lsi
);
3695 int spapr_irq_alloc(sPAPRMachineState
*spapr
, int irq_hint
, bool lsi
,
3698 ICSState
*ics
= spapr
->ics
;
3705 if (!ICS_IRQ_FREE(ics
, irq_hint
- ics
->offset
)) {
3706 error_setg(errp
, "can't allocate IRQ %d: already in use", irq_hint
);
3711 irq
= ics_find_free_block(ics
, 1, 1);
3713 error_setg(errp
, "can't allocate IRQ: no IRQ left");
3719 spapr_irq_set_lsi(spapr
, irq
, lsi
);
3720 trace_spapr_irq_alloc(irq
);
3726 * Allocate block of consecutive IRQs, and return the number of the first IRQ in
3727 * the block. If align==true, aligns the first IRQ number to num.
3729 int spapr_irq_alloc_block(sPAPRMachineState
*spapr
, int num
, bool lsi
,
3730 bool align
, Error
**errp
)
3732 ICSState
*ics
= spapr
->ics
;
3740 * MSIMesage::data is used for storing VIRQ so
3741 * it has to be aligned to num to support multiple
3742 * MSI vectors. MSI-X is not affected by this.
3743 * The hint is used for the first IRQ, the rest should
3744 * be allocated continuously.
3747 assert((num
== 1) || (num
== 2) || (num
== 4) ||
3748 (num
== 8) || (num
== 16) || (num
== 32));
3749 first
= ics_find_free_block(ics
, num
, num
);
3751 first
= ics_find_free_block(ics
, num
, 1);
3754 error_setg(errp
, "can't find a free %d-IRQ block", num
);
3758 first
+= ics
->offset
;
3759 for (i
= first
; i
< first
+ num
; ++i
) {
3760 spapr_irq_set_lsi(spapr
, i
, lsi
);
3763 trace_spapr_irq_alloc_block(first
, num
, lsi
, align
);
3768 void spapr_irq_free(sPAPRMachineState
*spapr
, int irq
, int num
)
3770 ICSState
*ics
= spapr
->ics
;
3771 int srcno
= irq
- ics
->offset
;
3774 if (ics_valid_irq(ics
, irq
)) {
3775 trace_spapr_irq_free(0, irq
, num
);
3776 for (i
= srcno
; i
< srcno
+ num
; ++i
) {
3777 if (ICS_IRQ_FREE(ics
, i
)) {
3778 trace_spapr_irq_free_warn(0, i
+ ics
->offset
);
3780 memset(&ics
->irqs
[i
], 0, sizeof(ICSIRQState
));
3785 qemu_irq
spapr_qirq(sPAPRMachineState
*spapr
, int irq
)
3787 ICSState
*ics
= spapr
->ics
;
3789 if (ics_valid_irq(ics
, irq
)) {
3790 return ics
->qirqs
[irq
- ics
->offset
];
3796 static void spapr_pic_print_info(InterruptStatsProvider
*obj
,
3799 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
3803 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
3805 icp_pic_print_info(ICP(cpu
->intc
), mon
);
3808 ics_pic_print_info(spapr
->ics
, mon
);
3811 int spapr_get_vcpu_id(PowerPCCPU
*cpu
)
3813 CPUState
*cs
= CPU(cpu
);
3815 if (kvm_enabled()) {
3816 return kvm_arch_vcpu_id(cs
);
3818 return cs
->cpu_index
;
3822 void spapr_set_vcpu_id(PowerPCCPU
*cpu
, int cpu_index
, Error
**errp
)
3824 sPAPRMachineState
*spapr
= SPAPR_MACHINE(qdev_get_machine());
3827 vcpu_id
= spapr_vcpu_id(spapr
, cpu_index
);
3829 if (kvm_enabled() && !kvm_vcpu_id_is_valid(vcpu_id
)) {
3830 error_setg(errp
, "Can't create CPU with id %d in KVM", vcpu_id
);
3831 error_append_hint(errp
, "Adjust the number of cpus to %d "
3832 "or try to raise the number of threads per core\n",
3833 vcpu_id
* smp_threads
/ spapr
->vsmt
);
3837 cpu
->vcpu_id
= vcpu_id
;
3840 PowerPCCPU
*spapr_find_cpu(int vcpu_id
)
3845 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
3847 if (spapr_get_vcpu_id(cpu
) == vcpu_id
) {
3855 static void spapr_machine_class_init(ObjectClass
*oc
, void *data
)
3857 MachineClass
*mc
= MACHINE_CLASS(oc
);
3858 sPAPRMachineClass
*smc
= SPAPR_MACHINE_CLASS(oc
);
3859 FWPathProviderClass
*fwc
= FW_PATH_PROVIDER_CLASS(oc
);
3860 NMIClass
*nc
= NMI_CLASS(oc
);
3861 HotplugHandlerClass
*hc
= HOTPLUG_HANDLER_CLASS(oc
);
3862 PPCVirtualHypervisorClass
*vhc
= PPC_VIRTUAL_HYPERVISOR_CLASS(oc
);
3863 XICSFabricClass
*xic
= XICS_FABRIC_CLASS(oc
);
3864 InterruptStatsProviderClass
*ispc
= INTERRUPT_STATS_PROVIDER_CLASS(oc
);
3866 mc
->desc
= "pSeries Logical Partition (PAPR compliant)";
3869 * We set up the default / latest behaviour here. The class_init
3870 * functions for the specific versioned machine types can override
3871 * these details for backwards compatibility
3873 mc
->init
= spapr_machine_init
;
3874 mc
->reset
= spapr_machine_reset
;
3875 mc
->block_default_type
= IF_SCSI
;
3876 mc
->max_cpus
= 1024;
3877 mc
->no_parallel
= 1;
3878 mc
->default_boot_order
= "";
3879 mc
->default_ram_size
= 512 * M_BYTE
;
3880 mc
->kvm_type
= spapr_kvm_type
;
3881 machine_class_allow_dynamic_sysbus_dev(mc
, TYPE_SPAPR_PCI_HOST_BRIDGE
);
3882 mc
->pci_allow_0_address
= true;
3883 mc
->get_hotplug_handler
= spapr_get_hotplug_handler
;
3884 hc
->pre_plug
= spapr_machine_device_pre_plug
;
3885 hc
->plug
= spapr_machine_device_plug
;
3886 mc
->cpu_index_to_instance_props
= spapr_cpu_index_to_props
;
3887 mc
->get_default_cpu_node_id
= spapr_get_default_cpu_node_id
;
3888 mc
->possible_cpu_arch_ids
= spapr_possible_cpu_arch_ids
;
3889 hc
->unplug_request
= spapr_machine_device_unplug_request
;
3891 smc
->dr_lmb_enabled
= true;
3892 mc
->default_cpu_type
= POWERPC_CPU_TYPE_NAME("power8_v2.0");
3893 mc
->has_hotpluggable_cpus
= true;
3894 smc
->resize_hpt_default
= SPAPR_RESIZE_HPT_ENABLED
;
3895 fwc
->get_dev_path
= spapr_get_fw_dev_path
;
3896 nc
->nmi_monitor_handler
= spapr_nmi
;
3897 smc
->phb_placement
= spapr_phb_placement
;
3898 vhc
->hypercall
= emulate_spapr_hypercall
;
3899 vhc
->hpt_mask
= spapr_hpt_mask
;
3900 vhc
->map_hptes
= spapr_map_hptes
;
3901 vhc
->unmap_hptes
= spapr_unmap_hptes
;
3902 vhc
->store_hpte
= spapr_store_hpte
;
3903 vhc
->get_patbe
= spapr_get_patbe
;
3904 vhc
->encode_hpt_for_kvm_pr
= spapr_encode_hpt_for_kvm_pr
;
3905 xic
->ics_get
= spapr_ics_get
;
3906 xic
->ics_resend
= spapr_ics_resend
;
3907 xic
->icp_get
= spapr_icp_get
;
3908 ispc
->print_info
= spapr_pic_print_info
;
3909 /* Force NUMA node memory size to be a multiple of
3910 * SPAPR_MEMORY_BLOCK_SIZE (256M) since that's the granularity
3911 * in which LMBs are represented and hot-added
3913 mc
->numa_mem_align_shift
= 28;
3915 smc
->default_caps
.caps
[SPAPR_CAP_HTM
] = SPAPR_CAP_OFF
;
3916 smc
->default_caps
.caps
[SPAPR_CAP_VSX
] = SPAPR_CAP_ON
;
3917 smc
->default_caps
.caps
[SPAPR_CAP_DFP
] = SPAPR_CAP_ON
;
3918 smc
->default_caps
.caps
[SPAPR_CAP_CFPC
] = SPAPR_CAP_BROKEN
;
3919 smc
->default_caps
.caps
[SPAPR_CAP_SBBC
] = SPAPR_CAP_BROKEN
;
3920 smc
->default_caps
.caps
[SPAPR_CAP_IBS
] = SPAPR_CAP_BROKEN
;
3921 spapr_caps_add_properties(smc
, &error_abort
);
3924 static const TypeInfo spapr_machine_info
= {
3925 .name
= TYPE_SPAPR_MACHINE
,
3926 .parent
= TYPE_MACHINE
,
3928 .instance_size
= sizeof(sPAPRMachineState
),
3929 .instance_init
= spapr_instance_init
,
3930 .instance_finalize
= spapr_machine_finalizefn
,
3931 .class_size
= sizeof(sPAPRMachineClass
),
3932 .class_init
= spapr_machine_class_init
,
3933 .interfaces
= (InterfaceInfo
[]) {
3934 { TYPE_FW_PATH_PROVIDER
},
3936 { TYPE_HOTPLUG_HANDLER
},
3937 { TYPE_PPC_VIRTUAL_HYPERVISOR
},
3938 { TYPE_XICS_FABRIC
},
3939 { TYPE_INTERRUPT_STATS_PROVIDER
},
3944 #define DEFINE_SPAPR_MACHINE(suffix, verstr, latest) \
3945 static void spapr_machine_##suffix##_class_init(ObjectClass *oc, \
3948 MachineClass *mc = MACHINE_CLASS(oc); \
3949 spapr_machine_##suffix##_class_options(mc); \
3951 mc->alias = "pseries"; \
3952 mc->is_default = 1; \
3955 static void spapr_machine_##suffix##_instance_init(Object *obj) \
3957 MachineState *machine = MACHINE(obj); \
3958 spapr_machine_##suffix##_instance_options(machine); \
3960 static const TypeInfo spapr_machine_##suffix##_info = { \
3961 .name = MACHINE_TYPE_NAME("pseries-" verstr), \
3962 .parent = TYPE_SPAPR_MACHINE, \
3963 .class_init = spapr_machine_##suffix##_class_init, \
3964 .instance_init = spapr_machine_##suffix##_instance_init, \
3966 static void spapr_machine_register_##suffix(void) \
3968 type_register(&spapr_machine_##suffix##_info); \
3970 type_init(spapr_machine_register_##suffix)
3975 static void spapr_machine_2_12_instance_options(MachineState
*machine
)
3979 static void spapr_machine_2_12_class_options(MachineClass
*mc
)
3981 /* Defaults for the latest behaviour inherited from the base class */
3984 DEFINE_SPAPR_MACHINE(2_12
, "2.12", true);
3989 #define SPAPR_COMPAT_2_11 \
3992 static void spapr_machine_2_11_instance_options(MachineState
*machine
)
3994 spapr_machine_2_12_instance_options(machine
);
3997 static void spapr_machine_2_11_class_options(MachineClass
*mc
)
3999 sPAPRMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4001 spapr_machine_2_12_class_options(mc
);
4002 smc
->default_caps
.caps
[SPAPR_CAP_HTM
] = SPAPR_CAP_ON
;
4003 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_11
);
4006 DEFINE_SPAPR_MACHINE(2_11
, "2.11", false);
4011 #define SPAPR_COMPAT_2_10 \
4014 static void spapr_machine_2_10_instance_options(MachineState
*machine
)
4016 spapr_machine_2_11_instance_options(machine
);
4019 static void spapr_machine_2_10_class_options(MachineClass
*mc
)
4021 spapr_machine_2_11_class_options(mc
);
4022 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_10
);
4025 DEFINE_SPAPR_MACHINE(2_10
, "2.10", false);
4030 #define SPAPR_COMPAT_2_9 \
4033 .driver = TYPE_POWERPC_CPU, \
4034 .property = "pre-2.10-migration", \
4038 static void spapr_machine_2_9_instance_options(MachineState *machine)
4040 spapr_machine_2_10_instance_options(machine
);
4043 static void spapr_machine_2_9_class_options(MachineClass
*mc
)
4045 sPAPRMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4047 spapr_machine_2_10_class_options(mc
);
4048 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_9
);
4049 mc
->numa_auto_assign_ram
= numa_legacy_auto_assign_ram
;
4050 smc
->pre_2_10_has_unused_icps
= true;
4051 smc
->resize_hpt_default
= SPAPR_RESIZE_HPT_DISABLED
;
4054 DEFINE_SPAPR_MACHINE(2_9
, "2.9", false);
4059 #define SPAPR_COMPAT_2_8 \
4062 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE, \
4063 .property = "pcie-extended-configuration-space", \
4067 static void spapr_machine_2_8_instance_options(MachineState
*machine
)
4069 spapr_machine_2_9_instance_options(machine
);
4072 static void spapr_machine_2_8_class_options(MachineClass
*mc
)
4074 spapr_machine_2_9_class_options(mc
);
4075 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_8
);
4076 mc
->numa_mem_align_shift
= 23;
4079 DEFINE_SPAPR_MACHINE(2_8
, "2.8", false);
4084 #define SPAPR_COMPAT_2_7 \
4087 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE, \
4088 .property = "mem_win_size", \
4089 .value = stringify(SPAPR_PCI_2_7_MMIO_WIN_SIZE),\
4092 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE, \
4093 .property = "mem64_win_size", \
4097 .driver = TYPE_POWERPC_CPU, \
4098 .property = "pre-2.8-migration", \
4102 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE, \
4103 .property = "pre-2.8-migration", \
4107 static void phb_placement_2_7(sPAPRMachineState
*spapr
, uint32_t index
,
4108 uint64_t *buid
, hwaddr
*pio
,
4109 hwaddr
*mmio32
, hwaddr
*mmio64
,
4110 unsigned n_dma
, uint32_t *liobns
, Error
**errp
)
4112 /* Legacy PHB placement for pseries-2.7 and earlier machine types */
4113 const uint64_t base_buid
= 0x800000020000000ULL
;
4114 const hwaddr phb_spacing
= 0x1000000000ULL
; /* 64 GiB */
4115 const hwaddr mmio_offset
= 0xa0000000; /* 2 GiB + 512 MiB */
4116 const hwaddr pio_offset
= 0x80000000; /* 2 GiB */
4117 const uint32_t max_index
= 255;
4118 const hwaddr phb0_alignment
= 0x10000000000ULL
; /* 1 TiB */
4120 uint64_t ram_top
= MACHINE(spapr
)->ram_size
;
4121 hwaddr phb0_base
, phb_base
;
4124 /* Do we have hotpluggable memory? */
4125 if (MACHINE(spapr
)->maxram_size
> ram_top
) {
4126 /* Can't just use maxram_size, because there may be an
4127 * alignment gap between normal and hotpluggable memory
4129 ram_top
= spapr
->hotplug_memory
.base
+
4130 memory_region_size(&spapr
->hotplug_memory
.mr
);
4133 phb0_base
= QEMU_ALIGN_UP(ram_top
, phb0_alignment
);
4135 if (index
> max_index
) {
4136 error_setg(errp
, "\"index\" for PAPR PHB is too large (max %u)",
4141 *buid
= base_buid
+ index
;
4142 for (i
= 0; i
< n_dma
; ++i
) {
4143 liobns
[i
] = SPAPR_PCI_LIOBN(index
, i
);
4146 phb_base
= phb0_base
+ index
* phb_spacing
;
4147 *pio
= phb_base
+ pio_offset
;
4148 *mmio32
= phb_base
+ mmio_offset
;
4150 * We don't set the 64-bit MMIO window, relying on the PHB's
4151 * fallback behaviour of automatically splitting a large "32-bit"
4152 * window into contiguous 32-bit and 64-bit windows
4156 static void spapr_machine_2_7_instance_options(MachineState
*machine
)
4158 sPAPRMachineState
*spapr
= SPAPR_MACHINE(machine
);
4160 spapr_machine_2_8_instance_options(machine
);
4161 spapr
->use_hotplug_event_source
= false;
4164 static void spapr_machine_2_7_class_options(MachineClass
*mc
)
4166 sPAPRMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4168 spapr_machine_2_8_class_options(mc
);
4169 mc
->default_cpu_type
= POWERPC_CPU_TYPE_NAME("power7_v2.3");
4170 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_7
);
4171 smc
->phb_placement
= phb_placement_2_7
;
4174 DEFINE_SPAPR_MACHINE(2_7
, "2.7", false);
4179 #define SPAPR_COMPAT_2_6 \
4182 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE,\
4184 .value = stringify(off),\
4187 static void spapr_machine_2_6_instance_options(MachineState
*machine
)
4189 spapr_machine_2_7_instance_options(machine
);
4192 static void spapr_machine_2_6_class_options(MachineClass
*mc
)
4194 spapr_machine_2_7_class_options(mc
);
4195 mc
->has_hotpluggable_cpus
= false;
4196 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_6
);
4199 DEFINE_SPAPR_MACHINE(2_6
, "2.6", false);
4204 #define SPAPR_COMPAT_2_5 \
4207 .driver = "spapr-vlan", \
4208 .property = "use-rx-buffer-pools", \
4212 static void spapr_machine_2_5_instance_options(MachineState
*machine
)
4214 spapr_machine_2_6_instance_options(machine
);
4217 static void spapr_machine_2_5_class_options(MachineClass
*mc
)
4219 sPAPRMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4221 spapr_machine_2_6_class_options(mc
);
4222 smc
->use_ohci_by_default
= true;
4223 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_5
);
4226 DEFINE_SPAPR_MACHINE(2_5
, "2.5", false);
4231 #define SPAPR_COMPAT_2_4 \
4234 static void spapr_machine_2_4_instance_options(MachineState
*machine
)
4236 spapr_machine_2_5_instance_options(machine
);
4239 static void spapr_machine_2_4_class_options(MachineClass
*mc
)
4241 sPAPRMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4243 spapr_machine_2_5_class_options(mc
);
4244 smc
->dr_lmb_enabled
= false;
4245 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_4
);
4248 DEFINE_SPAPR_MACHINE(2_4
, "2.4", false);
4253 #define SPAPR_COMPAT_2_3 \
4256 .driver = "spapr-pci-host-bridge",\
4257 .property = "dynamic-reconfiguration",\
4261 static void spapr_machine_2_3_instance_options(MachineState
*machine
)
4263 spapr_machine_2_4_instance_options(machine
);
4266 static void spapr_machine_2_3_class_options(MachineClass
*mc
)
4268 spapr_machine_2_4_class_options(mc
);
4269 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_3
);
4271 DEFINE_SPAPR_MACHINE(2_3
, "2.3", false);
4277 #define SPAPR_COMPAT_2_2 \
4280 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE,\
4281 .property = "mem_win_size",\
4282 .value = "0x20000000",\
4285 static void spapr_machine_2_2_instance_options(MachineState
*machine
)
4287 spapr_machine_2_3_instance_options(machine
);
4288 machine
->suppress_vmdesc
= true;
4291 static void spapr_machine_2_2_class_options(MachineClass
*mc
)
4293 spapr_machine_2_3_class_options(mc
);
4294 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_2
);
4296 DEFINE_SPAPR_MACHINE(2_2
, "2.2", false);
4301 #define SPAPR_COMPAT_2_1 \
4304 static void spapr_machine_2_1_instance_options(MachineState
*machine
)
4306 spapr_machine_2_2_instance_options(machine
);
4309 static void spapr_machine_2_1_class_options(MachineClass
*mc
)
4311 spapr_machine_2_2_class_options(mc
);
4312 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_1
);
4314 DEFINE_SPAPR_MACHINE(2_1
, "2.1", false);
4316 static void spapr_machine_register_types(void)
4318 type_register_static(&spapr_machine_info
);
4321 type_init(spapr_machine_register_types
)