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 "sysemu/sysemu.h"
29 #include "sysemu/numa.h"
31 #include "hw/fw-path-provider.h"
34 #include "sysemu/device_tree.h"
35 #include "sysemu/block-backend.h"
36 #include "sysemu/cpus.h"
37 #include "sysemu/kvm.h"
38 #include "sysemu/device_tree.h"
40 #include "migration/migration.h"
41 #include "mmu-hash64.h"
44 #include "hw/boards.h"
45 #include "hw/ppc/ppc.h"
46 #include "hw/loader.h"
48 #include "hw/ppc/spapr.h"
49 #include "hw/ppc/spapr_vio.h"
50 #include "hw/pci-host/spapr.h"
51 #include "hw/ppc/xics.h"
52 #include "hw/pci/msi.h"
54 #include "hw/pci/pci.h"
55 #include "hw/scsi/scsi.h"
56 #include "hw/virtio/virtio-scsi.h"
58 #include "exec/address-spaces.h"
60 #include "qemu/config-file.h"
61 #include "qemu/error-report.h"
65 #include "hw/compat.h"
66 #include "qemu-common.h"
70 /* SLOF memory layout:
72 * SLOF raw image loaded at 0, copies its romfs right below the flat
73 * device-tree, then position SLOF itself 31M below that
75 * So we set FW_OVERHEAD to 40MB which should account for all of that
78 * We load our kernel at 4M, leaving space for SLOF initial image
80 #define FDT_MAX_SIZE 0x100000
81 #define RTAS_MAX_SIZE 0x10000
82 #define RTAS_MAX_ADDR 0x80000000 /* RTAS must stay below that */
83 #define FW_MAX_SIZE 0x400000
84 #define FW_FILE_NAME "slof.bin"
85 #define FW_OVERHEAD 0x2800000
86 #define KERNEL_LOAD_ADDR FW_MAX_SIZE
88 #define MIN_RMA_SLOF 128UL
90 #define TIMEBASE_FREQ 512000000ULL
92 #define PHANDLE_XICP 0x00001111
94 #define HTAB_SIZE(spapr) (1ULL << ((spapr)->htab_shift))
96 static XICSState
*try_create_xics(const char *type
, int nr_servers
,
97 int nr_irqs
, Error
**errp
)
102 dev
= qdev_create(NULL
, type
);
103 qdev_prop_set_uint32(dev
, "nr_servers", nr_servers
);
104 qdev_prop_set_uint32(dev
, "nr_irqs", nr_irqs
);
105 object_property_set_bool(OBJECT(dev
), true, "realized", &err
);
107 error_propagate(errp
, err
);
108 object_unparent(OBJECT(dev
));
111 return XICS_COMMON(dev
);
114 static XICSState
*xics_system_init(MachineState
*machine
,
115 int nr_servers
, int nr_irqs
)
117 XICSState
*icp
= NULL
;
122 if (machine_kernel_irqchip_allowed(machine
)) {
123 icp
= try_create_xics(TYPE_KVM_XICS
, nr_servers
, nr_irqs
, &err
);
125 if (machine_kernel_irqchip_required(machine
) && !icp
) {
126 error_reportf_err(err
,
127 "kernel_irqchip requested but unavailable: ");
134 icp
= try_create_xics(TYPE_XICS
, nr_servers
, nr_irqs
, &error_abort
);
140 static int spapr_fixup_cpu_smt_dt(void *fdt
, int offset
, PowerPCCPU
*cpu
,
144 uint32_t servers_prop
[smt_threads
];
145 uint32_t gservers_prop
[smt_threads
* 2];
146 int index
= ppc_get_vcpu_dt_id(cpu
);
148 if (cpu
->cpu_version
) {
149 ret
= fdt_setprop_cell(fdt
, offset
, "cpu-version", cpu
->cpu_version
);
155 /* Build interrupt servers and gservers properties */
156 for (i
= 0; i
< smt_threads
; i
++) {
157 servers_prop
[i
] = cpu_to_be32(index
+ i
);
158 /* Hack, direct the group queues back to cpu 0 */
159 gservers_prop
[i
*2] = cpu_to_be32(index
+ i
);
160 gservers_prop
[i
*2 + 1] = 0;
162 ret
= fdt_setprop(fdt
, offset
, "ibm,ppc-interrupt-server#s",
163 servers_prop
, sizeof(servers_prop
));
167 ret
= fdt_setprop(fdt
, offset
, "ibm,ppc-interrupt-gserver#s",
168 gservers_prop
, sizeof(gservers_prop
));
173 static int spapr_fixup_cpu_numa_dt(void *fdt
, int offset
, CPUState
*cs
)
176 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
177 int index
= ppc_get_vcpu_dt_id(cpu
);
178 uint32_t associativity
[] = {cpu_to_be32(0x5),
182 cpu_to_be32(cs
->numa_node
),
185 /* Advertise NUMA via ibm,associativity */
186 if (nb_numa_nodes
> 1) {
187 ret
= fdt_setprop(fdt
, offset
, "ibm,associativity", associativity
,
188 sizeof(associativity
));
194 static int spapr_fixup_cpu_dt(void *fdt
, sPAPRMachineState
*spapr
)
196 int ret
= 0, offset
, cpus_offset
;
199 int smt
= kvmppc_smt_threads();
200 uint32_t pft_size_prop
[] = {0, cpu_to_be32(spapr
->htab_shift
)};
203 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
204 DeviceClass
*dc
= DEVICE_GET_CLASS(cs
);
205 int index
= ppc_get_vcpu_dt_id(cpu
);
207 if ((index
% smt
) != 0) {
211 snprintf(cpu_model
, 32, "%s@%x", dc
->fw_name
, index
);
213 cpus_offset
= fdt_path_offset(fdt
, "/cpus");
214 if (cpus_offset
< 0) {
215 cpus_offset
= fdt_add_subnode(fdt
, fdt_path_offset(fdt
, "/"),
217 if (cpus_offset
< 0) {
221 offset
= fdt_subnode_offset(fdt
, cpus_offset
, cpu_model
);
223 offset
= fdt_add_subnode(fdt
, cpus_offset
, cpu_model
);
229 ret
= fdt_setprop(fdt
, offset
, "ibm,pft-size",
230 pft_size_prop
, sizeof(pft_size_prop
));
235 ret
= spapr_fixup_cpu_numa_dt(fdt
, offset
, cs
);
240 ret
= spapr_fixup_cpu_smt_dt(fdt
, offset
, cpu
,
241 ppc_get_compat_smt_threads(cpu
));
250 static size_t create_page_sizes_prop(CPUPPCState
*env
, uint32_t *prop
,
253 size_t maxcells
= maxsize
/ sizeof(uint32_t);
257 for (i
= 0; i
< PPC_PAGE_SIZES_MAX_SZ
; i
++) {
258 struct ppc_one_seg_page_size
*sps
= &env
->sps
.sps
[i
];
260 if (!sps
->page_shift
) {
263 for (count
= 0; count
< PPC_PAGE_SIZES_MAX_SZ
; count
++) {
264 if (sps
->enc
[count
].page_shift
== 0) {
268 if ((p
- prop
) >= (maxcells
- 3 - count
* 2)) {
271 *(p
++) = cpu_to_be32(sps
->page_shift
);
272 *(p
++) = cpu_to_be32(sps
->slb_enc
);
273 *(p
++) = cpu_to_be32(count
);
274 for (j
= 0; j
< count
; j
++) {
275 *(p
++) = cpu_to_be32(sps
->enc
[j
].page_shift
);
276 *(p
++) = cpu_to_be32(sps
->enc
[j
].pte_enc
);
280 return (p
- prop
) * sizeof(uint32_t);
283 static hwaddr
spapr_node0_size(void)
285 MachineState
*machine
= MACHINE(qdev_get_machine());
289 for (i
= 0; i
< nb_numa_nodes
; ++i
) {
290 if (numa_info
[i
].node_mem
) {
291 return MIN(pow2floor(numa_info
[i
].node_mem
),
296 return machine
->ram_size
;
303 fprintf(stderr, "qemu: error creating device tree: %s: %s\n", \
304 #exp, fdt_strerror(ret)); \
309 static void add_str(GString
*s
, const gchar
*s1
)
311 g_string_append_len(s
, s1
, strlen(s1
) + 1);
314 static void *spapr_create_fdt_skel(hwaddr initrd_base
,
318 const char *kernel_cmdline
,
322 uint32_t start_prop
= cpu_to_be32(initrd_base
);
323 uint32_t end_prop
= cpu_to_be32(initrd_base
+ initrd_size
);
324 GString
*hypertas
= g_string_sized_new(256);
325 GString
*qemu_hypertas
= g_string_sized_new(256);
326 uint32_t refpoints
[] = {cpu_to_be32(0x4), cpu_to_be32(0x4)};
327 uint32_t interrupt_server_ranges_prop
[] = {0, cpu_to_be32(max_cpus
)};
328 unsigned char vec5
[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x80};
331 add_str(hypertas
, "hcall-pft");
332 add_str(hypertas
, "hcall-term");
333 add_str(hypertas
, "hcall-dabr");
334 add_str(hypertas
, "hcall-interrupt");
335 add_str(hypertas
, "hcall-tce");
336 add_str(hypertas
, "hcall-vio");
337 add_str(hypertas
, "hcall-splpar");
338 add_str(hypertas
, "hcall-bulk");
339 add_str(hypertas
, "hcall-set-mode");
340 add_str(qemu_hypertas
, "hcall-memop1");
342 fdt
= g_malloc0(FDT_MAX_SIZE
);
343 _FDT((fdt_create(fdt
, FDT_MAX_SIZE
)));
346 _FDT((fdt_add_reservemap_entry(fdt
, KERNEL_LOAD_ADDR
, kernel_size
)));
349 _FDT((fdt_add_reservemap_entry(fdt
, initrd_base
, initrd_size
)));
351 _FDT((fdt_finish_reservemap(fdt
)));
354 _FDT((fdt_begin_node(fdt
, "")));
355 _FDT((fdt_property_string(fdt
, "device_type", "chrp")));
356 _FDT((fdt_property_string(fdt
, "model", "IBM pSeries (emulated by qemu)")));
357 _FDT((fdt_property_string(fdt
, "compatible", "qemu,pseries")));
360 * Add info to guest to indentify which host is it being run on
361 * and what is the uuid of the guest
363 if (kvmppc_get_host_model(&buf
)) {
364 _FDT((fdt_property_string(fdt
, "host-model", buf
)));
367 if (kvmppc_get_host_serial(&buf
)) {
368 _FDT((fdt_property_string(fdt
, "host-serial", buf
)));
372 buf
= g_strdup_printf(UUID_FMT
, qemu_uuid
[0], qemu_uuid
[1],
373 qemu_uuid
[2], qemu_uuid
[3], qemu_uuid
[4],
374 qemu_uuid
[5], qemu_uuid
[6], qemu_uuid
[7],
375 qemu_uuid
[8], qemu_uuid
[9], qemu_uuid
[10],
376 qemu_uuid
[11], qemu_uuid
[12], qemu_uuid
[13],
377 qemu_uuid
[14], qemu_uuid
[15]);
379 _FDT((fdt_property_string(fdt
, "vm,uuid", buf
)));
381 _FDT((fdt_property_string(fdt
, "system-id", buf
)));
385 if (qemu_get_vm_name()) {
386 _FDT((fdt_property_string(fdt
, "ibm,partition-name",
387 qemu_get_vm_name())));
390 _FDT((fdt_property_cell(fdt
, "#address-cells", 0x2)));
391 _FDT((fdt_property_cell(fdt
, "#size-cells", 0x2)));
394 _FDT((fdt_begin_node(fdt
, "chosen")));
396 /* Set Form1_affinity */
397 _FDT((fdt_property(fdt
, "ibm,architecture-vec-5", vec5
, sizeof(vec5
))));
399 _FDT((fdt_property_string(fdt
, "bootargs", kernel_cmdline
)));
400 _FDT((fdt_property(fdt
, "linux,initrd-start",
401 &start_prop
, sizeof(start_prop
))));
402 _FDT((fdt_property(fdt
, "linux,initrd-end",
403 &end_prop
, sizeof(end_prop
))));
405 uint64_t kprop
[2] = { cpu_to_be64(KERNEL_LOAD_ADDR
),
406 cpu_to_be64(kernel_size
) };
408 _FDT((fdt_property(fdt
, "qemu,boot-kernel", &kprop
, sizeof(kprop
))));
410 _FDT((fdt_property(fdt
, "qemu,boot-kernel-le", NULL
, 0)));
414 _FDT((fdt_property_cell(fdt
, "qemu,boot-menu", boot_menu
)));
416 _FDT((fdt_property_cell(fdt
, "qemu,graphic-width", graphic_width
)));
417 _FDT((fdt_property_cell(fdt
, "qemu,graphic-height", graphic_height
)));
418 _FDT((fdt_property_cell(fdt
, "qemu,graphic-depth", graphic_depth
)));
420 _FDT((fdt_end_node(fdt
)));
423 _FDT((fdt_begin_node(fdt
, "rtas")));
425 if (!kvm_enabled() || kvmppc_spapr_use_multitce()) {
426 add_str(hypertas
, "hcall-multi-tce");
428 _FDT((fdt_property(fdt
, "ibm,hypertas-functions", hypertas
->str
,
430 g_string_free(hypertas
, TRUE
);
431 _FDT((fdt_property(fdt
, "qemu,hypertas-functions", qemu_hypertas
->str
,
432 qemu_hypertas
->len
)));
433 g_string_free(qemu_hypertas
, TRUE
);
435 _FDT((fdt_property(fdt
, "ibm,associativity-reference-points",
436 refpoints
, sizeof(refpoints
))));
438 _FDT((fdt_property_cell(fdt
, "rtas-error-log-max", RTAS_ERROR_LOG_MAX
)));
439 _FDT((fdt_property_cell(fdt
, "rtas-event-scan-rate",
440 RTAS_EVENT_SCAN_RATE
)));
443 _FDT((fdt_property(fdt
, "ibm,change-msix-capable", NULL
, 0)));
447 * According to PAPR, rtas ibm,os-term does not guarantee a return
448 * back to the guest cpu.
450 * While an additional ibm,extended-os-term property indicates that
451 * rtas call return will always occur. Set this property.
453 _FDT((fdt_property(fdt
, "ibm,extended-os-term", NULL
, 0)));
455 _FDT((fdt_end_node(fdt
)));
457 /* interrupt controller */
458 _FDT((fdt_begin_node(fdt
, "interrupt-controller")));
460 _FDT((fdt_property_string(fdt
, "device_type",
461 "PowerPC-External-Interrupt-Presentation")));
462 _FDT((fdt_property_string(fdt
, "compatible", "IBM,ppc-xicp")));
463 _FDT((fdt_property(fdt
, "interrupt-controller", NULL
, 0)));
464 _FDT((fdt_property(fdt
, "ibm,interrupt-server-ranges",
465 interrupt_server_ranges_prop
,
466 sizeof(interrupt_server_ranges_prop
))));
467 _FDT((fdt_property_cell(fdt
, "#interrupt-cells", 2)));
468 _FDT((fdt_property_cell(fdt
, "linux,phandle", PHANDLE_XICP
)));
469 _FDT((fdt_property_cell(fdt
, "phandle", PHANDLE_XICP
)));
471 _FDT((fdt_end_node(fdt
)));
474 _FDT((fdt_begin_node(fdt
, "vdevice")));
476 _FDT((fdt_property_string(fdt
, "device_type", "vdevice")));
477 _FDT((fdt_property_string(fdt
, "compatible", "IBM,vdevice")));
478 _FDT((fdt_property_cell(fdt
, "#address-cells", 0x1)));
479 _FDT((fdt_property_cell(fdt
, "#size-cells", 0x0)));
480 _FDT((fdt_property_cell(fdt
, "#interrupt-cells", 0x2)));
481 _FDT((fdt_property(fdt
, "interrupt-controller", NULL
, 0)));
483 _FDT((fdt_end_node(fdt
)));
486 spapr_events_fdt_skel(fdt
, epow_irq
);
488 /* /hypervisor node */
490 uint8_t hypercall
[16];
492 /* indicate KVM hypercall interface */
493 _FDT((fdt_begin_node(fdt
, "hypervisor")));
494 _FDT((fdt_property_string(fdt
, "compatible", "linux,kvm")));
495 if (kvmppc_has_cap_fixup_hcalls()) {
497 * Older KVM versions with older guest kernels were broken with the
498 * magic page, don't allow the guest to map it.
500 kvmppc_get_hypercall(first_cpu
->env_ptr
, hypercall
,
502 _FDT((fdt_property(fdt
, "hcall-instructions", hypercall
,
503 sizeof(hypercall
))));
505 _FDT((fdt_end_node(fdt
)));
508 _FDT((fdt_end_node(fdt
))); /* close root node */
509 _FDT((fdt_finish(fdt
)));
514 static int spapr_populate_memory_node(void *fdt
, int nodeid
, hwaddr start
,
517 uint32_t associativity
[] = {
518 cpu_to_be32(0x4), /* length */
519 cpu_to_be32(0x0), cpu_to_be32(0x0),
520 cpu_to_be32(0x0), cpu_to_be32(nodeid
)
523 uint64_t mem_reg_property
[2];
526 mem_reg_property
[0] = cpu_to_be64(start
);
527 mem_reg_property
[1] = cpu_to_be64(size
);
529 sprintf(mem_name
, "memory@" TARGET_FMT_lx
, start
);
530 off
= fdt_add_subnode(fdt
, 0, mem_name
);
532 _FDT((fdt_setprop_string(fdt
, off
, "device_type", "memory")));
533 _FDT((fdt_setprop(fdt
, off
, "reg", mem_reg_property
,
534 sizeof(mem_reg_property
))));
535 _FDT((fdt_setprop(fdt
, off
, "ibm,associativity", associativity
,
536 sizeof(associativity
))));
540 static int spapr_populate_memory(sPAPRMachineState
*spapr
, void *fdt
)
542 MachineState
*machine
= MACHINE(spapr
);
543 hwaddr mem_start
, node_size
;
544 int i
, nb_nodes
= nb_numa_nodes
;
545 NodeInfo
*nodes
= numa_info
;
548 /* No NUMA nodes, assume there is just one node with whole RAM */
549 if (!nb_numa_nodes
) {
551 ramnode
.node_mem
= machine
->ram_size
;
555 for (i
= 0, mem_start
= 0; i
< nb_nodes
; ++i
) {
556 if (!nodes
[i
].node_mem
) {
559 if (mem_start
>= machine
->ram_size
) {
562 node_size
= nodes
[i
].node_mem
;
563 if (node_size
> machine
->ram_size
- mem_start
) {
564 node_size
= machine
->ram_size
- mem_start
;
568 /* ppc_spapr_init() checks for rma_size <= node0_size already */
569 spapr_populate_memory_node(fdt
, i
, 0, spapr
->rma_size
);
570 mem_start
+= spapr
->rma_size
;
571 node_size
-= spapr
->rma_size
;
573 for ( ; node_size
; ) {
574 hwaddr sizetmp
= pow2floor(node_size
);
576 /* mem_start != 0 here */
577 if (ctzl(mem_start
) < ctzl(sizetmp
)) {
578 sizetmp
= 1ULL << ctzl(mem_start
);
581 spapr_populate_memory_node(fdt
, i
, mem_start
, sizetmp
);
582 node_size
-= sizetmp
;
583 mem_start
+= sizetmp
;
590 static void spapr_populate_cpu_dt(CPUState
*cs
, void *fdt
, int offset
,
591 sPAPRMachineState
*spapr
)
593 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
594 CPUPPCState
*env
= &cpu
->env
;
595 PowerPCCPUClass
*pcc
= POWERPC_CPU_GET_CLASS(cs
);
596 int index
= ppc_get_vcpu_dt_id(cpu
);
597 uint32_t segs
[] = {cpu_to_be32(28), cpu_to_be32(40),
598 0xffffffff, 0xffffffff};
599 uint32_t tbfreq
= kvm_enabled() ? kvmppc_get_tbfreq() : TIMEBASE_FREQ
;
600 uint32_t cpufreq
= kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;
601 uint32_t page_sizes_prop
[64];
602 size_t page_sizes_prop_size
;
603 uint32_t vcpus_per_socket
= smp_threads
* smp_cores
;
604 uint32_t pft_size_prop
[] = {0, cpu_to_be32(spapr
->htab_shift
)};
606 /* Note: we keep CI large pages off for now because a 64K capable guest
607 * provisioned with large pages might otherwise try to map a qemu
608 * framebuffer (or other kind of memory mapped PCI BAR) using 64K pages
609 * even if that qemu runs on a 4k host.
611 * We can later add this bit back when we are confident this is not
612 * an issue (!HV KVM or 64K host)
614 uint8_t pa_features_206
[] = { 6, 0,
615 0xf6, 0x1f, 0xc7, 0x00, 0x80, 0xc0 };
616 uint8_t pa_features_207
[] = { 24, 0,
617 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0,
618 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
619 0x00, 0x00, 0x00, 0x00, 0x80, 0x00,
620 0x80, 0x00, 0x80, 0x00, 0x80, 0x00 };
621 uint8_t *pa_features
;
624 _FDT((fdt_setprop_cell(fdt
, offset
, "reg", index
)));
625 _FDT((fdt_setprop_string(fdt
, offset
, "device_type", "cpu")));
627 _FDT((fdt_setprop_cell(fdt
, offset
, "cpu-version", env
->spr
[SPR_PVR
])));
628 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-block-size",
629 env
->dcache_line_size
)));
630 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-line-size",
631 env
->dcache_line_size
)));
632 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-block-size",
633 env
->icache_line_size
)));
634 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-line-size",
635 env
->icache_line_size
)));
637 if (pcc
->l1_dcache_size
) {
638 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-size",
639 pcc
->l1_dcache_size
)));
641 fprintf(stderr
, "Warning: Unknown L1 dcache size for cpu\n");
643 if (pcc
->l1_icache_size
) {
644 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-size",
645 pcc
->l1_icache_size
)));
647 fprintf(stderr
, "Warning: Unknown L1 icache size for cpu\n");
650 _FDT((fdt_setprop_cell(fdt
, offset
, "timebase-frequency", tbfreq
)));
651 _FDT((fdt_setprop_cell(fdt
, offset
, "clock-frequency", cpufreq
)));
652 _FDT((fdt_setprop_cell(fdt
, offset
, "slb-size", env
->slb_nr
)));
653 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,slb-size", env
->slb_nr
)));
654 _FDT((fdt_setprop_string(fdt
, offset
, "status", "okay")));
655 _FDT((fdt_setprop(fdt
, offset
, "64-bit", NULL
, 0)));
657 if (env
->spr_cb
[SPR_PURR
].oea_read
) {
658 _FDT((fdt_setprop(fdt
, offset
, "ibm,purr", NULL
, 0)));
661 if (env
->mmu_model
& POWERPC_MMU_1TSEG
) {
662 _FDT((fdt_setprop(fdt
, offset
, "ibm,processor-segment-sizes",
663 segs
, sizeof(segs
))));
666 /* Advertise VMX/VSX (vector extensions) if available
667 * 0 / no property == no vector extensions
668 * 1 == VMX / Altivec available
669 * 2 == VSX available */
670 if (env
->insns_flags
& PPC_ALTIVEC
) {
671 uint32_t vmx
= (env
->insns_flags2
& PPC2_VSX
) ? 2 : 1;
673 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,vmx", vmx
)));
676 /* Advertise DFP (Decimal Floating Point) if available
677 * 0 / no property == no DFP
678 * 1 == DFP available */
679 if (env
->insns_flags2
& PPC2_DFP
) {
680 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,dfp", 1)));
683 page_sizes_prop_size
= create_page_sizes_prop(env
, page_sizes_prop
,
684 sizeof(page_sizes_prop
));
685 if (page_sizes_prop_size
) {
686 _FDT((fdt_setprop(fdt
, offset
, "ibm,segment-page-sizes",
687 page_sizes_prop
, page_sizes_prop_size
)));
690 /* Do the ibm,pa-features property, adjust it for ci-large-pages */
691 if (env
->mmu_model
== POWERPC_MMU_2_06
) {
692 pa_features
= pa_features_206
;
693 pa_size
= sizeof(pa_features_206
);
694 } else /* env->mmu_model == POWERPC_MMU_2_07 */ {
695 pa_features
= pa_features_207
;
696 pa_size
= sizeof(pa_features_207
);
698 if (env
->ci_large_pages
) {
699 pa_features
[3] |= 0x20;
701 _FDT((fdt_setprop(fdt
, offset
, "ibm,pa-features", pa_features
, pa_size
)));
703 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,chip-id",
704 cs
->cpu_index
/ vcpus_per_socket
)));
706 _FDT((fdt_setprop(fdt
, offset
, "ibm,pft-size",
707 pft_size_prop
, sizeof(pft_size_prop
))));
709 _FDT(spapr_fixup_cpu_numa_dt(fdt
, offset
, cs
));
711 _FDT(spapr_fixup_cpu_smt_dt(fdt
, offset
, cpu
,
712 ppc_get_compat_smt_threads(cpu
)));
715 static void spapr_populate_cpus_dt_node(void *fdt
, sPAPRMachineState
*spapr
)
720 int smt
= kvmppc_smt_threads();
722 cpus_offset
= fdt_add_subnode(fdt
, 0, "cpus");
724 _FDT((fdt_setprop_cell(fdt
, cpus_offset
, "#address-cells", 0x1)));
725 _FDT((fdt_setprop_cell(fdt
, cpus_offset
, "#size-cells", 0x0)));
728 * We walk the CPUs in reverse order to ensure that CPU DT nodes
729 * created by fdt_add_subnode() end up in the right order in FDT
730 * for the guest kernel the enumerate the CPUs correctly.
732 CPU_FOREACH_REVERSE(cs
) {
733 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
734 int index
= ppc_get_vcpu_dt_id(cpu
);
735 DeviceClass
*dc
= DEVICE_GET_CLASS(cs
);
738 if ((index
% smt
) != 0) {
742 nodename
= g_strdup_printf("%s@%x", dc
->fw_name
, index
);
743 offset
= fdt_add_subnode(fdt
, cpus_offset
, nodename
);
746 spapr_populate_cpu_dt(cs
, fdt
, offset
, spapr
);
752 * Adds ibm,dynamic-reconfiguration-memory node.
753 * Refer to docs/specs/ppc-spapr-hotplug.txt for the documentation
754 * of this device tree node.
756 static int spapr_populate_drconf_memory(sPAPRMachineState
*spapr
, void *fdt
)
758 MachineState
*machine
= MACHINE(spapr
);
760 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
761 uint32_t prop_lmb_size
[] = {0, cpu_to_be32(lmb_size
)};
762 uint32_t nr_lmbs
= (machine
->maxram_size
- machine
->ram_size
)/lmb_size
;
763 uint32_t *int_buf
, *cur_index
, buf_len
;
764 int nr_nodes
= nb_numa_nodes
? nb_numa_nodes
: 1;
767 * Don't create the node if there are no DR LMBs.
774 * Allocate enough buffer size to fit in ibm,dynamic-memory
775 * or ibm,associativity-lookup-arrays
777 buf_len
= MAX(nr_lmbs
* SPAPR_DR_LMB_LIST_ENTRY_SIZE
+ 1, nr_nodes
* 4 + 2)
779 cur_index
= int_buf
= g_malloc0(buf_len
);
781 offset
= fdt_add_subnode(fdt
, 0, "ibm,dynamic-reconfiguration-memory");
783 ret
= fdt_setprop(fdt
, offset
, "ibm,lmb-size", prop_lmb_size
,
784 sizeof(prop_lmb_size
));
789 ret
= fdt_setprop_cell(fdt
, offset
, "ibm,memory-flags-mask", 0xff);
794 ret
= fdt_setprop_cell(fdt
, offset
, "ibm,memory-preservation-time", 0x0);
799 /* ibm,dynamic-memory */
800 int_buf
[0] = cpu_to_be32(nr_lmbs
);
802 for (i
= 0; i
< nr_lmbs
; i
++) {
803 sPAPRDRConnector
*drc
;
804 sPAPRDRConnectorClass
*drck
;
805 uint64_t addr
= i
* lmb_size
+ spapr
->hotplug_memory
.base
;;
806 uint32_t *dynamic_memory
= cur_index
;
808 drc
= spapr_dr_connector_by_id(SPAPR_DR_CONNECTOR_TYPE_LMB
,
811 drck
= SPAPR_DR_CONNECTOR_GET_CLASS(drc
);
813 dynamic_memory
[0] = cpu_to_be32(addr
>> 32);
814 dynamic_memory
[1] = cpu_to_be32(addr
& 0xffffffff);
815 dynamic_memory
[2] = cpu_to_be32(drck
->get_index(drc
));
816 dynamic_memory
[3] = cpu_to_be32(0); /* reserved */
817 dynamic_memory
[4] = cpu_to_be32(numa_get_node(addr
, NULL
));
818 if (addr
< machine
->ram_size
||
819 memory_region_present(get_system_memory(), addr
)) {
820 dynamic_memory
[5] = cpu_to_be32(SPAPR_LMB_FLAGS_ASSIGNED
);
822 dynamic_memory
[5] = cpu_to_be32(0);
825 cur_index
+= SPAPR_DR_LMB_LIST_ENTRY_SIZE
;
827 ret
= fdt_setprop(fdt
, offset
, "ibm,dynamic-memory", int_buf
, buf_len
);
832 /* ibm,associativity-lookup-arrays */
834 int_buf
[0] = cpu_to_be32(nr_nodes
);
835 int_buf
[1] = cpu_to_be32(4); /* Number of entries per associativity list */
837 for (i
= 0; i
< nr_nodes
; i
++) {
838 uint32_t associativity
[] = {
844 memcpy(cur_index
, associativity
, sizeof(associativity
));
847 ret
= fdt_setprop(fdt
, offset
, "ibm,associativity-lookup-arrays", int_buf
,
848 (cur_index
- int_buf
) * sizeof(uint32_t));
854 int spapr_h_cas_compose_response(sPAPRMachineState
*spapr
,
855 target_ulong addr
, target_ulong size
,
856 bool cpu_update
, bool memory_update
)
858 void *fdt
, *fdt_skel
;
859 sPAPRDeviceTreeUpdateHeader hdr
= { .version_id
= 1 };
860 sPAPRMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(qdev_get_machine());
864 /* Create sceleton */
865 fdt_skel
= g_malloc0(size
);
866 _FDT((fdt_create(fdt_skel
, size
)));
867 _FDT((fdt_begin_node(fdt_skel
, "")));
868 _FDT((fdt_end_node(fdt_skel
)));
869 _FDT((fdt_finish(fdt_skel
)));
870 fdt
= g_malloc0(size
);
871 _FDT((fdt_open_into(fdt_skel
, fdt
, size
)));
874 /* Fixup cpu nodes */
876 _FDT((spapr_fixup_cpu_dt(fdt
, spapr
)));
879 /* Generate ibm,dynamic-reconfiguration-memory node if required */
880 if (memory_update
&& smc
->dr_lmb_enabled
) {
881 _FDT((spapr_populate_drconf_memory(spapr
, fdt
)));
884 /* Pack resulting tree */
885 _FDT((fdt_pack(fdt
)));
887 if (fdt_totalsize(fdt
) + sizeof(hdr
) > size
) {
888 trace_spapr_cas_failed(size
);
892 cpu_physical_memory_write(addr
, &hdr
, sizeof(hdr
));
893 cpu_physical_memory_write(addr
+ sizeof(hdr
), fdt
, fdt_totalsize(fdt
));
894 trace_spapr_cas_continue(fdt_totalsize(fdt
) + sizeof(hdr
));
900 static void spapr_finalize_fdt(sPAPRMachineState
*spapr
,
905 MachineState
*machine
= MACHINE(qdev_get_machine());
906 sPAPRMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
907 const char *boot_device
= machine
->boot_order
;
914 fdt
= g_malloc(FDT_MAX_SIZE
);
916 /* open out the base tree into a temp buffer for the final tweaks */
917 _FDT((fdt_open_into(spapr
->fdt_skel
, fdt
, FDT_MAX_SIZE
)));
919 ret
= spapr_populate_memory(spapr
, fdt
);
921 fprintf(stderr
, "couldn't setup memory nodes in fdt\n");
925 ret
= spapr_populate_vdevice(spapr
->vio_bus
, fdt
);
927 fprintf(stderr
, "couldn't setup vio devices in fdt\n");
931 if (object_resolve_path_type("", TYPE_SPAPR_RNG
, NULL
)) {
932 ret
= spapr_rng_populate_dt(fdt
);
934 fprintf(stderr
, "could not set up rng device in the fdt\n");
939 QLIST_FOREACH(phb
, &spapr
->phbs
, list
) {
940 ret
= spapr_populate_pci_dt(phb
, PHANDLE_XICP
, fdt
);
944 fprintf(stderr
, "couldn't setup PCI devices in fdt\n");
949 ret
= spapr_rtas_device_tree_setup(fdt
, rtas_addr
, rtas_size
);
951 fprintf(stderr
, "Couldn't set up RTAS device tree properties\n");
955 spapr_populate_cpus_dt_node(fdt
, spapr
);
957 bootlist
= get_boot_devices_list(&cb
, true);
958 if (cb
&& bootlist
) {
959 int offset
= fdt_path_offset(fdt
, "/chosen");
963 for (i
= 0; i
< cb
; i
++) {
964 if (bootlist
[i
] == '\n') {
969 ret
= fdt_setprop_string(fdt
, offset
, "qemu,boot-list", bootlist
);
972 if (boot_device
&& strlen(boot_device
)) {
973 int offset
= fdt_path_offset(fdt
, "/chosen");
978 fdt_setprop_string(fdt
, offset
, "qemu,boot-device", boot_device
);
981 if (!spapr
->has_graphics
) {
982 spapr_populate_chosen_stdout(fdt
, spapr
->vio_bus
);
985 if (smc
->dr_lmb_enabled
) {
986 _FDT(spapr_drc_populate_dt(fdt
, 0, NULL
, SPAPR_DR_CONNECTOR_TYPE_LMB
));
989 _FDT((fdt_pack(fdt
)));
991 if (fdt_totalsize(fdt
) > FDT_MAX_SIZE
) {
992 error_report("FDT too big ! 0x%x bytes (max is 0x%x)",
993 fdt_totalsize(fdt
), FDT_MAX_SIZE
);
997 qemu_fdt_dumpdtb(fdt
, fdt_totalsize(fdt
));
998 cpu_physical_memory_write(fdt_addr
, fdt
, fdt_totalsize(fdt
));
1004 static uint64_t translate_kernel_address(void *opaque
, uint64_t addr
)
1006 return (addr
& 0x0fffffff) + KERNEL_LOAD_ADDR
;
1009 static void emulate_spapr_hypercall(PowerPCCPU
*cpu
)
1011 CPUPPCState
*env
= &cpu
->env
;
1014 hcall_dprintf("Hypercall made with MSR[PR]=1\n");
1015 env
->gpr
[3] = H_PRIVILEGE
;
1017 env
->gpr
[3] = spapr_hypercall(cpu
, env
->gpr
[3], &env
->gpr
[4]);
1021 #define HPTE(_table, _i) (void *)(((uint64_t *)(_table)) + ((_i) * 2))
1022 #define HPTE_VALID(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_VALID)
1023 #define HPTE_DIRTY(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_HPTE_DIRTY)
1024 #define CLEAN_HPTE(_hpte) ((*(uint64_t *)(_hpte)) &= tswap64(~HPTE64_V_HPTE_DIRTY))
1025 #define DIRTY_HPTE(_hpte) ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY))
1027 static void spapr_alloc_htab(sPAPRMachineState
*spapr
)
1032 /* allocate hash page table. For now we always make this 16mb,
1033 * later we should probably make it scale to the size of guest
1036 shift
= kvmppc_reset_htab(spapr
->htab_shift
);
1039 * For HV KVM, host kernel will return -ENOMEM when requested
1040 * HTAB size can't be allocated.
1042 error_setg(&error_abort
, "Failed to allocate HTAB of requested size, try with smaller maxmem");
1043 } else if (shift
> 0) {
1045 * Kernel handles htab, we don't need to allocate one
1047 * Older kernels can fall back to lower HTAB shift values,
1048 * but we don't allow booting of such guests.
1050 if (shift
!= spapr
->htab_shift
) {
1051 error_setg(&error_abort
, "Failed to allocate HTAB of requested size, try with smaller maxmem");
1054 spapr
->htab_shift
= shift
;
1055 kvmppc_kern_htab
= true;
1058 spapr
->htab
= qemu_memalign(HTAB_SIZE(spapr
), HTAB_SIZE(spapr
));
1061 memset(spapr
->htab
, 0, HTAB_SIZE(spapr
));
1063 for (index
= 0; index
< HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
; index
++) {
1064 DIRTY_HPTE(HPTE(spapr
->htab
, index
));
1070 * Clear HTAB entries during reset.
1072 * If host kernel has allocated HTAB, KVM_PPC_ALLOCATE_HTAB ioctl is
1073 * used to clear HTAB. Otherwise QEMU-allocated HTAB is cleared manually.
1075 static void spapr_reset_htab(sPAPRMachineState
*spapr
)
1080 shift
= kvmppc_reset_htab(spapr
->htab_shift
);
1082 error_setg(&error_abort
, "Failed to reset HTAB");
1083 } else if (shift
> 0) {
1084 if (shift
!= spapr
->htab_shift
) {
1085 error_setg(&error_abort
, "Requested HTAB allocation failed during reset");
1088 /* Tell readers to update their file descriptor */
1089 if (spapr
->htab_fd
>= 0) {
1090 spapr
->htab_fd_stale
= true;
1093 memset(spapr
->htab
, 0, HTAB_SIZE(spapr
));
1095 for (index
= 0; index
< HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
; index
++) {
1096 DIRTY_HPTE(HPTE(spapr
->htab
, index
));
1100 /* Update the RMA size if necessary */
1101 if (spapr
->vrma_adjust
) {
1102 spapr
->rma_size
= kvmppc_rma_size(spapr_node0_size(),
1107 static int find_unknown_sysbus_device(SysBusDevice
*sbdev
, void *opaque
)
1109 bool matched
= false;
1111 if (object_dynamic_cast(OBJECT(sbdev
), TYPE_SPAPR_PCI_HOST_BRIDGE
)) {
1116 error_report("Device %s is not supported by this machine yet.",
1117 qdev_fw_name(DEVICE(sbdev
)));
1125 * A guest reset will cause spapr->htab_fd to become stale if being used.
1126 * Reopen the file descriptor to make sure the whole HTAB is properly read.
1128 static int spapr_check_htab_fd(sPAPRMachineState
*spapr
)
1132 if (spapr
->htab_fd_stale
) {
1133 close(spapr
->htab_fd
);
1134 spapr
->htab_fd
= kvmppc_get_htab_fd(false);
1135 if (spapr
->htab_fd
< 0) {
1136 error_report("Unable to open fd for reading hash table from KVM: "
1137 "%s", strerror(errno
));
1140 spapr
->htab_fd_stale
= false;
1146 static void ppc_spapr_reset(void)
1148 sPAPRMachineState
*spapr
= SPAPR_MACHINE(qdev_get_machine());
1149 PowerPCCPU
*first_ppc_cpu
;
1150 uint32_t rtas_limit
;
1152 /* Check for unknown sysbus devices */
1153 foreach_dynamic_sysbus_device(find_unknown_sysbus_device
, NULL
);
1155 /* Reset the hash table & recalc the RMA */
1156 spapr_reset_htab(spapr
);
1158 qemu_devices_reset();
1161 * We place the device tree and RTAS just below either the top of the RMA,
1162 * or just below 2GB, whichever is lowere, so that it can be
1163 * processed with 32-bit real mode code if necessary
1165 rtas_limit
= MIN(spapr
->rma_size
, RTAS_MAX_ADDR
);
1166 spapr
->rtas_addr
= rtas_limit
- RTAS_MAX_SIZE
;
1167 spapr
->fdt_addr
= spapr
->rtas_addr
- FDT_MAX_SIZE
;
1170 spapr_finalize_fdt(spapr
, spapr
->fdt_addr
, spapr
->rtas_addr
,
1173 /* Copy RTAS over */
1174 cpu_physical_memory_write(spapr
->rtas_addr
, spapr
->rtas_blob
,
1177 /* Set up the entry state */
1178 first_ppc_cpu
= POWERPC_CPU(first_cpu
);
1179 first_ppc_cpu
->env
.gpr
[3] = spapr
->fdt_addr
;
1180 first_ppc_cpu
->env
.gpr
[5] = 0;
1181 first_cpu
->halted
= 0;
1182 first_ppc_cpu
->env
.nip
= SPAPR_ENTRY_POINT
;
1186 static void spapr_cpu_reset(void *opaque
)
1188 sPAPRMachineState
*spapr
= SPAPR_MACHINE(qdev_get_machine());
1189 PowerPCCPU
*cpu
= opaque
;
1190 CPUState
*cs
= CPU(cpu
);
1191 CPUPPCState
*env
= &cpu
->env
;
1195 /* All CPUs start halted. CPU0 is unhalted from the machine level
1196 * reset code and the rest are explicitly started up by the guest
1197 * using an RTAS call */
1200 env
->spr
[SPR_HIOR
] = 0;
1202 env
->external_htab
= (uint8_t *)spapr
->htab
;
1203 if (kvm_enabled() && !env
->external_htab
) {
1205 * HV KVM, set external_htab to 1 so our ppc_hash64_load_hpte*
1206 * functions do the right thing.
1208 env
->external_htab
= (void *)1;
1210 env
->htab_base
= -1;
1212 * htab_mask is the mask used to normalize hash value to PTEG index.
1213 * htab_shift is log2 of hash table size.
1214 * We have 8 hpte per group, and each hpte is 16 bytes.
1215 * ie have 128 bytes per hpte entry.
1217 env
->htab_mask
= (1ULL << (spapr
->htab_shift
- 7)) - 1;
1218 env
->spr
[SPR_SDR1
] = (target_ulong
)(uintptr_t)spapr
->htab
|
1219 (spapr
->htab_shift
- 18);
1222 static void spapr_create_nvram(sPAPRMachineState
*spapr
)
1224 DeviceState
*dev
= qdev_create(&spapr
->vio_bus
->bus
, "spapr-nvram");
1225 DriveInfo
*dinfo
= drive_get(IF_PFLASH
, 0, 0);
1228 qdev_prop_set_drive(dev
, "drive", blk_by_legacy_dinfo(dinfo
),
1232 qdev_init_nofail(dev
);
1234 spapr
->nvram
= (struct sPAPRNVRAM
*)dev
;
1237 static void spapr_rtc_create(sPAPRMachineState
*spapr
)
1239 DeviceState
*dev
= qdev_create(NULL
, TYPE_SPAPR_RTC
);
1241 qdev_init_nofail(dev
);
1244 object_property_add_alias(qdev_get_machine(), "rtc-time",
1245 OBJECT(spapr
->rtc
), "date", NULL
);
1248 /* Returns whether we want to use VGA or not */
1249 static int spapr_vga_init(PCIBus
*pci_bus
)
1251 switch (vga_interface_type
) {
1258 return pci_vga_init(pci_bus
) != NULL
;
1260 fprintf(stderr
, "This vga model is not supported,"
1261 "currently it only supports -vga std\n");
1266 static int spapr_post_load(void *opaque
, int version_id
)
1268 sPAPRMachineState
*spapr
= (sPAPRMachineState
*)opaque
;
1271 /* In earlier versions, there was no separate qdev for the PAPR
1272 * RTC, so the RTC offset was stored directly in sPAPREnvironment.
1273 * So when migrating from those versions, poke the incoming offset
1274 * value into the RTC device */
1275 if (version_id
< 3) {
1276 err
= spapr_rtc_import_offset(spapr
->rtc
, spapr
->rtc_offset
);
1282 static bool version_before_3(void *opaque
, int version_id
)
1284 return version_id
< 3;
1287 static const VMStateDescription vmstate_spapr
= {
1290 .minimum_version_id
= 1,
1291 .post_load
= spapr_post_load
,
1292 .fields
= (VMStateField
[]) {
1293 /* used to be @next_irq */
1294 VMSTATE_UNUSED_BUFFER(version_before_3
, 0, 4),
1297 VMSTATE_UINT64_TEST(rtc_offset
, sPAPRMachineState
, version_before_3
),
1299 VMSTATE_PPC_TIMEBASE_V(tb
, sPAPRMachineState
, 2),
1300 VMSTATE_END_OF_LIST()
1304 static int htab_save_setup(QEMUFile
*f
, void *opaque
)
1306 sPAPRMachineState
*spapr
= opaque
;
1308 /* "Iteration" header */
1309 qemu_put_be32(f
, spapr
->htab_shift
);
1312 spapr
->htab_save_index
= 0;
1313 spapr
->htab_first_pass
= true;
1315 assert(kvm_enabled());
1317 spapr
->htab_fd
= kvmppc_get_htab_fd(false);
1318 spapr
->htab_fd_stale
= false;
1319 if (spapr
->htab_fd
< 0) {
1320 fprintf(stderr
, "Unable to open fd for reading hash table from KVM: %s\n",
1330 static void htab_save_first_pass(QEMUFile
*f
, sPAPRMachineState
*spapr
,
1333 int htabslots
= HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
;
1334 int index
= spapr
->htab_save_index
;
1335 int64_t starttime
= qemu_clock_get_ns(QEMU_CLOCK_REALTIME
);
1337 assert(spapr
->htab_first_pass
);
1342 /* Consume invalid HPTEs */
1343 while ((index
< htabslots
)
1344 && !HPTE_VALID(HPTE(spapr
->htab
, index
))) {
1346 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
1349 /* Consume valid HPTEs */
1351 while ((index
< htabslots
) && (index
- chunkstart
< USHRT_MAX
)
1352 && HPTE_VALID(HPTE(spapr
->htab
, index
))) {
1354 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
1357 if (index
> chunkstart
) {
1358 int n_valid
= index
- chunkstart
;
1360 qemu_put_be32(f
, chunkstart
);
1361 qemu_put_be16(f
, n_valid
);
1362 qemu_put_be16(f
, 0);
1363 qemu_put_buffer(f
, HPTE(spapr
->htab
, chunkstart
),
1364 HASH_PTE_SIZE_64
* n_valid
);
1366 if ((qemu_clock_get_ns(QEMU_CLOCK_REALTIME
) - starttime
) > max_ns
) {
1370 } while ((index
< htabslots
) && !qemu_file_rate_limit(f
));
1372 if (index
>= htabslots
) {
1373 assert(index
== htabslots
);
1375 spapr
->htab_first_pass
= false;
1377 spapr
->htab_save_index
= index
;
1380 static int htab_save_later_pass(QEMUFile
*f
, sPAPRMachineState
*spapr
,
1383 bool final
= max_ns
< 0;
1384 int htabslots
= HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
;
1385 int examined
= 0, sent
= 0;
1386 int index
= spapr
->htab_save_index
;
1387 int64_t starttime
= qemu_clock_get_ns(QEMU_CLOCK_REALTIME
);
1389 assert(!spapr
->htab_first_pass
);
1392 int chunkstart
, invalidstart
;
1394 /* Consume non-dirty HPTEs */
1395 while ((index
< htabslots
)
1396 && !HPTE_DIRTY(HPTE(spapr
->htab
, index
))) {
1402 /* Consume valid dirty HPTEs */
1403 while ((index
< htabslots
) && (index
- chunkstart
< USHRT_MAX
)
1404 && HPTE_DIRTY(HPTE(spapr
->htab
, index
))
1405 && HPTE_VALID(HPTE(spapr
->htab
, index
))) {
1406 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
1411 invalidstart
= index
;
1412 /* Consume invalid dirty HPTEs */
1413 while ((index
< htabslots
) && (index
- invalidstart
< USHRT_MAX
)
1414 && HPTE_DIRTY(HPTE(spapr
->htab
, index
))
1415 && !HPTE_VALID(HPTE(spapr
->htab
, index
))) {
1416 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
1421 if (index
> chunkstart
) {
1422 int n_valid
= invalidstart
- chunkstart
;
1423 int n_invalid
= index
- invalidstart
;
1425 qemu_put_be32(f
, chunkstart
);
1426 qemu_put_be16(f
, n_valid
);
1427 qemu_put_be16(f
, n_invalid
);
1428 qemu_put_buffer(f
, HPTE(spapr
->htab
, chunkstart
),
1429 HASH_PTE_SIZE_64
* n_valid
);
1430 sent
+= index
- chunkstart
;
1432 if (!final
&& (qemu_clock_get_ns(QEMU_CLOCK_REALTIME
) - starttime
) > max_ns
) {
1437 if (examined
>= htabslots
) {
1441 if (index
>= htabslots
) {
1442 assert(index
== htabslots
);
1445 } while ((examined
< htabslots
) && (!qemu_file_rate_limit(f
) || final
));
1447 if (index
>= htabslots
) {
1448 assert(index
== htabslots
);
1452 spapr
->htab_save_index
= index
;
1454 return (examined
>= htabslots
) && (sent
== 0) ? 1 : 0;
1457 #define MAX_ITERATION_NS 5000000 /* 5 ms */
1458 #define MAX_KVM_BUF_SIZE 2048
1460 static int htab_save_iterate(QEMUFile
*f
, void *opaque
)
1462 sPAPRMachineState
*spapr
= opaque
;
1465 /* Iteration header */
1466 qemu_put_be32(f
, 0);
1469 assert(kvm_enabled());
1471 rc
= spapr_check_htab_fd(spapr
);
1476 rc
= kvmppc_save_htab(f
, spapr
->htab_fd
,
1477 MAX_KVM_BUF_SIZE
, MAX_ITERATION_NS
);
1481 } else if (spapr
->htab_first_pass
) {
1482 htab_save_first_pass(f
, spapr
, MAX_ITERATION_NS
);
1484 rc
= htab_save_later_pass(f
, spapr
, MAX_ITERATION_NS
);
1488 qemu_put_be32(f
, 0);
1489 qemu_put_be16(f
, 0);
1490 qemu_put_be16(f
, 0);
1495 static int htab_save_complete(QEMUFile
*f
, void *opaque
)
1497 sPAPRMachineState
*spapr
= opaque
;
1499 /* Iteration header */
1500 qemu_put_be32(f
, 0);
1505 assert(kvm_enabled());
1507 rc
= spapr_check_htab_fd(spapr
);
1512 rc
= kvmppc_save_htab(f
, spapr
->htab_fd
, MAX_KVM_BUF_SIZE
, -1);
1516 close(spapr
->htab_fd
);
1517 spapr
->htab_fd
= -1;
1519 htab_save_later_pass(f
, spapr
, -1);
1523 qemu_put_be32(f
, 0);
1524 qemu_put_be16(f
, 0);
1525 qemu_put_be16(f
, 0);
1530 static int htab_load(QEMUFile
*f
, void *opaque
, int version_id
)
1532 sPAPRMachineState
*spapr
= opaque
;
1533 uint32_t section_hdr
;
1536 if (version_id
< 1 || version_id
> 1) {
1537 fprintf(stderr
, "htab_load() bad version\n");
1541 section_hdr
= qemu_get_be32(f
);
1544 /* First section, just the hash shift */
1545 if (spapr
->htab_shift
!= section_hdr
) {
1546 error_report("htab_shift mismatch: source %d target %d",
1547 section_hdr
, spapr
->htab_shift
);
1554 assert(kvm_enabled());
1556 fd
= kvmppc_get_htab_fd(true);
1558 fprintf(stderr
, "Unable to open fd to restore KVM hash table: %s\n",
1565 uint16_t n_valid
, n_invalid
;
1567 index
= qemu_get_be32(f
);
1568 n_valid
= qemu_get_be16(f
);
1569 n_invalid
= qemu_get_be16(f
);
1571 if ((index
== 0) && (n_valid
== 0) && (n_invalid
== 0)) {
1576 if ((index
+ n_valid
+ n_invalid
) >
1577 (HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
)) {
1578 /* Bad index in stream */
1579 fprintf(stderr
, "htab_load() bad index %d (%hd+%hd entries) "
1580 "in htab stream (htab_shift=%d)\n", index
, n_valid
, n_invalid
,
1587 qemu_get_buffer(f
, HPTE(spapr
->htab
, index
),
1588 HASH_PTE_SIZE_64
* n_valid
);
1591 memset(HPTE(spapr
->htab
, index
+ n_valid
), 0,
1592 HASH_PTE_SIZE_64
* n_invalid
);
1599 rc
= kvmppc_load_htab_chunk(f
, fd
, index
, n_valid
, n_invalid
);
1614 static SaveVMHandlers savevm_htab_handlers
= {
1615 .save_live_setup
= htab_save_setup
,
1616 .save_live_iterate
= htab_save_iterate
,
1617 .save_live_complete_precopy
= htab_save_complete
,
1618 .load_state
= htab_load
,
1621 static void spapr_boot_set(void *opaque
, const char *boot_device
,
1624 MachineState
*machine
= MACHINE(qdev_get_machine());
1625 machine
->boot_order
= g_strdup(boot_device
);
1628 static void spapr_cpu_init(sPAPRMachineState
*spapr
, PowerPCCPU
*cpu
,
1631 CPUPPCState
*env
= &cpu
->env
;
1633 /* Set time-base frequency to 512 MHz */
1634 cpu_ppc_tb_init(env
, TIMEBASE_FREQ
);
1636 /* PAPR always has exception vectors in RAM not ROM. To ensure this,
1637 * MSR[IP] should never be set.
1639 env
->msr_mask
&= ~(1 << 6);
1641 /* Tell KVM that we're in PAPR mode */
1642 if (kvm_enabled()) {
1643 kvmppc_set_papr(cpu
);
1646 if (cpu
->max_compat
) {
1647 Error
*local_err
= NULL
;
1649 ppc_set_compat(cpu
, cpu
->max_compat
, &local_err
);
1651 error_propagate(errp
, local_err
);
1656 xics_cpu_setup(spapr
->icp
, cpu
);
1658 qemu_register_reset(spapr_cpu_reset
, cpu
);
1662 * Reset routine for LMB DR devices.
1664 * Unlike PCI DR devices, LMB DR devices explicitly register this reset
1665 * routine. Reset for PCI DR devices will be handled by PHB reset routine
1666 * when it walks all its children devices. LMB devices reset occurs
1667 * as part of spapr_ppc_reset().
1669 static void spapr_drc_reset(void *opaque
)
1671 sPAPRDRConnector
*drc
= opaque
;
1672 DeviceState
*d
= DEVICE(drc
);
1679 static void spapr_create_lmb_dr_connectors(sPAPRMachineState
*spapr
)
1681 MachineState
*machine
= MACHINE(spapr
);
1682 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
1683 uint32_t nr_lmbs
= (machine
->maxram_size
- machine
->ram_size
)/lmb_size
;
1686 for (i
= 0; i
< nr_lmbs
; i
++) {
1687 sPAPRDRConnector
*drc
;
1690 addr
= i
* lmb_size
+ spapr
->hotplug_memory
.base
;
1691 drc
= spapr_dr_connector_new(OBJECT(spapr
), SPAPR_DR_CONNECTOR_TYPE_LMB
,
1693 qemu_register_reset(spapr_drc_reset
, drc
);
1698 * If RAM size, maxmem size and individual node mem sizes aren't aligned
1699 * to SPAPR_MEMORY_BLOCK_SIZE(256MB), then refuse to start the guest
1700 * since we can't support such unaligned sizes with DRCONF_MEMORY.
1702 static void spapr_validate_node_memory(MachineState
*machine
)
1706 if (machine
->maxram_size
% SPAPR_MEMORY_BLOCK_SIZE
||
1707 machine
->ram_size
% SPAPR_MEMORY_BLOCK_SIZE
) {
1708 error_report("Can't support memory configuration where RAM size "
1709 "0x" RAM_ADDR_FMT
" or maxmem size "
1710 "0x" RAM_ADDR_FMT
" isn't aligned to %llu MB",
1711 machine
->ram_size
, machine
->maxram_size
,
1712 SPAPR_MEMORY_BLOCK_SIZE
/M_BYTE
);
1716 for (i
= 0; i
< nb_numa_nodes
; i
++) {
1717 if (numa_info
[i
].node_mem
% SPAPR_MEMORY_BLOCK_SIZE
) {
1718 error_report("Can't support memory configuration where memory size"
1719 " %" PRIx64
" of node %d isn't aligned to %llu MB",
1720 numa_info
[i
].node_mem
, i
,
1721 SPAPR_MEMORY_BLOCK_SIZE
/M_BYTE
);
1727 /* pSeries LPAR / sPAPR hardware init */
1728 static void ppc_spapr_init(MachineState
*machine
)
1730 sPAPRMachineState
*spapr
= SPAPR_MACHINE(machine
);
1731 sPAPRMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
1732 const char *kernel_filename
= machine
->kernel_filename
;
1733 const char *kernel_cmdline
= machine
->kernel_cmdline
;
1734 const char *initrd_filename
= machine
->initrd_filename
;
1738 MemoryRegion
*sysmem
= get_system_memory();
1739 MemoryRegion
*ram
= g_new(MemoryRegion
, 1);
1740 MemoryRegion
*rma_region
;
1742 hwaddr rma_alloc_size
;
1743 hwaddr node0_size
= spapr_node0_size();
1744 uint32_t initrd_base
= 0;
1745 long kernel_size
= 0, initrd_size
= 0;
1746 long load_limit
, fw_size
;
1747 bool kernel_le
= false;
1750 msi_supported
= true;
1752 QLIST_INIT(&spapr
->phbs
);
1754 cpu_ppc_hypercall
= emulate_spapr_hypercall
;
1756 /* Allocate RMA if necessary */
1757 rma_alloc_size
= kvmppc_alloc_rma(&rma
);
1759 if (rma_alloc_size
== -1) {
1760 error_report("Unable to create RMA");
1764 if (rma_alloc_size
&& (rma_alloc_size
< node0_size
)) {
1765 spapr
->rma_size
= rma_alloc_size
;
1767 spapr
->rma_size
= node0_size
;
1769 /* With KVM, we don't actually know whether KVM supports an
1770 * unbounded RMA (PR KVM) or is limited by the hash table size
1771 * (HV KVM using VRMA), so we always assume the latter
1773 * In that case, we also limit the initial allocations for RTAS
1774 * etc... to 256M since we have no way to know what the VRMA size
1775 * is going to be as it depends on the size of the hash table
1776 * isn't determined yet.
1778 if (kvm_enabled()) {
1779 spapr
->vrma_adjust
= 1;
1780 spapr
->rma_size
= MIN(spapr
->rma_size
, 0x10000000);
1784 if (spapr
->rma_size
> node0_size
) {
1785 fprintf(stderr
, "Error: Numa node 0 has to span the RMA (%#08"HWADDR_PRIx
")\n",
1790 /* Setup a load limit for the ramdisk leaving room for SLOF and FDT */
1791 load_limit
= MIN(spapr
->rma_size
, RTAS_MAX_ADDR
) - FW_OVERHEAD
;
1793 /* We aim for a hash table of size 1/128 the size of RAM. The
1794 * normal rule of thumb is 1/64 the size of RAM, but that's much
1795 * more than needed for the Linux guests we support. */
1796 spapr
->htab_shift
= 18; /* Minimum architected size */
1797 while (spapr
->htab_shift
<= 46) {
1798 if ((1ULL << (spapr
->htab_shift
+ 7)) >= machine
->maxram_size
) {
1801 spapr
->htab_shift
++;
1803 spapr_alloc_htab(spapr
);
1805 /* Set up Interrupt Controller before we create the VCPUs */
1806 spapr
->icp
= xics_system_init(machine
,
1807 DIV_ROUND_UP(max_cpus
* kvmppc_smt_threads(),
1811 if (smc
->dr_lmb_enabled
) {
1812 spapr_validate_node_memory(machine
);
1816 if (machine
->cpu_model
== NULL
) {
1817 machine
->cpu_model
= kvm_enabled() ? "host" : "POWER7";
1819 for (i
= 0; i
< smp_cpus
; i
++) {
1820 cpu
= cpu_ppc_init(machine
->cpu_model
);
1822 error_report("Unable to find PowerPC CPU definition");
1825 spapr_cpu_init(spapr
, cpu
, &error_fatal
);
1828 if (kvm_enabled()) {
1829 /* Enable H_LOGICAL_CI_* so SLOF can talk to in-kernel devices */
1830 kvmppc_enable_logical_ci_hcalls();
1831 kvmppc_enable_set_mode_hcall();
1835 memory_region_allocate_system_memory(ram
, NULL
, "ppc_spapr.ram",
1837 memory_region_add_subregion(sysmem
, 0, ram
);
1839 if (rma_alloc_size
&& rma
) {
1840 rma_region
= g_new(MemoryRegion
, 1);
1841 memory_region_init_ram_ptr(rma_region
, NULL
, "ppc_spapr.rma",
1842 rma_alloc_size
, rma
);
1843 vmstate_register_ram_global(rma_region
);
1844 memory_region_add_subregion(sysmem
, 0, rma_region
);
1847 /* initialize hotplug memory address space */
1848 if (machine
->ram_size
< machine
->maxram_size
) {
1849 ram_addr_t hotplug_mem_size
= machine
->maxram_size
- machine
->ram_size
;
1851 if (machine
->ram_slots
> SPAPR_MAX_RAM_SLOTS
) {
1852 error_report("Specified number of memory slots %" PRIu64
1853 " exceeds max supported %d",
1854 machine
->ram_slots
, SPAPR_MAX_RAM_SLOTS
);
1858 spapr
->hotplug_memory
.base
= ROUND_UP(machine
->ram_size
,
1859 SPAPR_HOTPLUG_MEM_ALIGN
);
1860 memory_region_init(&spapr
->hotplug_memory
.mr
, OBJECT(spapr
),
1861 "hotplug-memory", hotplug_mem_size
);
1862 memory_region_add_subregion(sysmem
, spapr
->hotplug_memory
.base
,
1863 &spapr
->hotplug_memory
.mr
);
1866 if (smc
->dr_lmb_enabled
) {
1867 spapr_create_lmb_dr_connectors(spapr
);
1870 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, "spapr-rtas.bin");
1872 error_report("Could not find LPAR rtas '%s'", "spapr-rtas.bin");
1875 spapr
->rtas_size
= get_image_size(filename
);
1876 spapr
->rtas_blob
= g_malloc(spapr
->rtas_size
);
1877 if (load_image_size(filename
, spapr
->rtas_blob
, spapr
->rtas_size
) < 0) {
1878 error_report("Could not load LPAR rtas '%s'", filename
);
1881 if (spapr
->rtas_size
> RTAS_MAX_SIZE
) {
1882 error_report("RTAS too big ! 0x%zx bytes (max is 0x%x)",
1883 (size_t)spapr
->rtas_size
, RTAS_MAX_SIZE
);
1888 /* Set up EPOW events infrastructure */
1889 spapr_events_init(spapr
);
1891 /* Set up the RTC RTAS interfaces */
1892 spapr_rtc_create(spapr
);
1894 /* Set up VIO bus */
1895 spapr
->vio_bus
= spapr_vio_bus_init();
1897 for (i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
1898 if (serial_hds
[i
]) {
1899 spapr_vty_create(spapr
->vio_bus
, serial_hds
[i
]);
1903 /* We always have at least the nvram device on VIO */
1904 spapr_create_nvram(spapr
);
1907 spapr_pci_rtas_init();
1909 phb
= spapr_create_phb(spapr
, 0);
1911 for (i
= 0; i
< nb_nics
; i
++) {
1912 NICInfo
*nd
= &nd_table
[i
];
1915 nd
->model
= g_strdup("ibmveth");
1918 if (strcmp(nd
->model
, "ibmveth") == 0) {
1919 spapr_vlan_create(spapr
->vio_bus
, nd
);
1921 pci_nic_init_nofail(&nd_table
[i
], phb
->bus
, nd
->model
, NULL
);
1925 for (i
= 0; i
<= drive_get_max_bus(IF_SCSI
); i
++) {
1926 spapr_vscsi_create(spapr
->vio_bus
);
1930 if (spapr_vga_init(phb
->bus
)) {
1931 spapr
->has_graphics
= true;
1932 machine
->usb
|= defaults_enabled() && !machine
->usb_disabled
;
1936 if (smc
->use_ohci_by_default
) {
1937 pci_create_simple(phb
->bus
, -1, "pci-ohci");
1939 pci_create_simple(phb
->bus
, -1, "nec-usb-xhci");
1942 if (spapr
->has_graphics
) {
1943 USBBus
*usb_bus
= usb_bus_find(-1);
1945 usb_create_simple(usb_bus
, "usb-kbd");
1946 usb_create_simple(usb_bus
, "usb-mouse");
1950 if (spapr
->rma_size
< (MIN_RMA_SLOF
<< 20)) {
1951 fprintf(stderr
, "qemu: pSeries SLOF firmware requires >= "
1952 "%ldM guest RMA (Real Mode Area memory)\n", MIN_RMA_SLOF
);
1956 if (kernel_filename
) {
1957 uint64_t lowaddr
= 0;
1959 kernel_size
= load_elf(kernel_filename
, translate_kernel_address
, NULL
,
1960 NULL
, &lowaddr
, NULL
, 1, PPC_ELF_MACHINE
, 0);
1961 if (kernel_size
== ELF_LOAD_WRONG_ENDIAN
) {
1962 kernel_size
= load_elf(kernel_filename
,
1963 translate_kernel_address
, NULL
,
1964 NULL
, &lowaddr
, NULL
, 0, PPC_ELF_MACHINE
, 0);
1965 kernel_le
= kernel_size
> 0;
1967 if (kernel_size
< 0) {
1968 fprintf(stderr
, "qemu: error loading %s: %s\n",
1969 kernel_filename
, load_elf_strerror(kernel_size
));
1974 if (initrd_filename
) {
1975 /* Try to locate the initrd in the gap between the kernel
1976 * and the firmware. Add a bit of space just in case
1978 initrd_base
= (KERNEL_LOAD_ADDR
+ kernel_size
+ 0x1ffff) & ~0xffff;
1979 initrd_size
= load_image_targphys(initrd_filename
, initrd_base
,
1980 load_limit
- initrd_base
);
1981 if (initrd_size
< 0) {
1982 fprintf(stderr
, "qemu: could not load initial ram disk '%s'\n",
1992 if (bios_name
== NULL
) {
1993 bios_name
= FW_FILE_NAME
;
1995 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
1997 error_report("Could not find LPAR firmware '%s'", bios_name
);
2000 fw_size
= load_image_targphys(filename
, 0, FW_MAX_SIZE
);
2002 error_report("Could not load LPAR firmware '%s'", filename
);
2007 /* FIXME: Should register things through the MachineState's qdev
2008 * interface, this is a legacy from the sPAPREnvironment structure
2009 * which predated MachineState but had a similar function */
2010 vmstate_register(NULL
, 0, &vmstate_spapr
, spapr
);
2011 register_savevm_live(NULL
, "spapr/htab", -1, 1,
2012 &savevm_htab_handlers
, spapr
);
2014 /* Prepare the device tree */
2015 spapr
->fdt_skel
= spapr_create_fdt_skel(initrd_base
, initrd_size
,
2016 kernel_size
, kernel_le
,
2018 spapr
->check_exception_irq
);
2019 assert(spapr
->fdt_skel
!= NULL
);
2022 QTAILQ_INIT(&spapr
->ccs_list
);
2023 qemu_register_reset(spapr_ccs_reset_hook
, spapr
);
2025 qemu_register_boot_set(spapr_boot_set
, spapr
);
2028 static int spapr_kvm_type(const char *vm_type
)
2034 if (!strcmp(vm_type
, "HV")) {
2038 if (!strcmp(vm_type
, "PR")) {
2042 error_report("Unknown kvm-type specified '%s'", vm_type
);
2047 * Implementation of an interface to adjust firmware path
2048 * for the bootindex property handling.
2050 static char *spapr_get_fw_dev_path(FWPathProvider
*p
, BusState
*bus
,
2053 #define CAST(type, obj, name) \
2054 ((type *)object_dynamic_cast(OBJECT(obj), (name)))
2055 SCSIDevice
*d
= CAST(SCSIDevice
, dev
, TYPE_SCSI_DEVICE
);
2056 sPAPRPHBState
*phb
= CAST(sPAPRPHBState
, dev
, TYPE_SPAPR_PCI_HOST_BRIDGE
);
2059 void *spapr
= CAST(void, bus
->parent
, "spapr-vscsi");
2060 VirtIOSCSI
*virtio
= CAST(VirtIOSCSI
, bus
->parent
, TYPE_VIRTIO_SCSI
);
2061 USBDevice
*usb
= CAST(USBDevice
, bus
->parent
, TYPE_USB_DEVICE
);
2065 * Replace "channel@0/disk@0,0" with "disk@8000000000000000":
2066 * We use SRP luns of the form 8000 | (bus << 8) | (id << 5) | lun
2067 * in the top 16 bits of the 64-bit LUN
2069 unsigned id
= 0x8000 | (d
->id
<< 8) | d
->lun
;
2070 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
2071 (uint64_t)id
<< 48);
2072 } else if (virtio
) {
2074 * We use SRP luns of the form 01000000 | (target << 8) | lun
2075 * in the top 32 bits of the 64-bit LUN
2076 * Note: the quote above is from SLOF and it is wrong,
2077 * the actual binding is:
2078 * swap 0100 or 10 << or 20 << ( target lun-id -- srplun )
2080 unsigned id
= 0x1000000 | (d
->id
<< 16) | d
->lun
;
2081 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
2082 (uint64_t)id
<< 32);
2085 * We use SRP luns of the form 01000000 | (usb-port << 16) | lun
2086 * in the top 32 bits of the 64-bit LUN
2088 unsigned usb_port
= atoi(usb
->port
->path
);
2089 unsigned id
= 0x1000000 | (usb_port
<< 16) | d
->lun
;
2090 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
2091 (uint64_t)id
<< 32);
2096 /* Replace "pci" with "pci@800000020000000" */
2097 return g_strdup_printf("pci@%"PRIX64
, phb
->buid
);
2103 static char *spapr_get_kvm_type(Object
*obj
, Error
**errp
)
2105 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2107 return g_strdup(spapr
->kvm_type
);
2110 static void spapr_set_kvm_type(Object
*obj
, const char *value
, Error
**errp
)
2112 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2114 g_free(spapr
->kvm_type
);
2115 spapr
->kvm_type
= g_strdup(value
);
2118 static void spapr_machine_initfn(Object
*obj
)
2120 object_property_add_str(obj
, "kvm-type",
2121 spapr_get_kvm_type
, spapr_set_kvm_type
, NULL
);
2122 object_property_set_description(obj
, "kvm-type",
2123 "Specifies the KVM virtualization mode (HV, PR)",
2127 static void spapr_machine_finalizefn(Object
*obj
)
2129 sPAPRMachineState
*spapr
= SPAPR_MACHINE(obj
);
2131 g_free(spapr
->kvm_type
);
2134 static void ppc_cpu_do_nmi_on_cpu(void *arg
)
2138 cpu_synchronize_state(cs
);
2139 ppc_cpu_do_system_reset(cs
);
2142 static void spapr_nmi(NMIState
*n
, int cpu_index
, Error
**errp
)
2147 async_run_on_cpu(cs
, ppc_cpu_do_nmi_on_cpu
, cs
);
2151 static void spapr_add_lmbs(DeviceState
*dev
, uint64_t addr
, uint64_t size
,
2152 uint32_t node
, Error
**errp
)
2154 sPAPRDRConnector
*drc
;
2155 sPAPRDRConnectorClass
*drck
;
2156 uint32_t nr_lmbs
= size
/SPAPR_MEMORY_BLOCK_SIZE
;
2157 int i
, fdt_offset
, fdt_size
;
2161 * Check for DRC connectors and send hotplug notification to the
2162 * guest only in case of hotplugged memory. This allows cold plugged
2163 * memory to be specified at boot time.
2165 if (!dev
->hotplugged
) {
2169 for (i
= 0; i
< nr_lmbs
; i
++) {
2170 drc
= spapr_dr_connector_by_id(SPAPR_DR_CONNECTOR_TYPE_LMB
,
2171 addr
/SPAPR_MEMORY_BLOCK_SIZE
);
2174 fdt
= create_device_tree(&fdt_size
);
2175 fdt_offset
= spapr_populate_memory_node(fdt
, node
, addr
,
2176 SPAPR_MEMORY_BLOCK_SIZE
);
2178 drck
= SPAPR_DR_CONNECTOR_GET_CLASS(drc
);
2179 drck
->attach(drc
, dev
, fdt
, fdt_offset
, !dev
->hotplugged
, errp
);
2180 addr
+= SPAPR_MEMORY_BLOCK_SIZE
;
2182 spapr_hotplug_req_add_by_count(SPAPR_DR_CONNECTOR_TYPE_LMB
, nr_lmbs
);
2185 static void spapr_memory_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
2186 uint32_t node
, Error
**errp
)
2188 Error
*local_err
= NULL
;
2189 sPAPRMachineState
*ms
= SPAPR_MACHINE(hotplug_dev
);
2190 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
2191 PCDIMMDeviceClass
*ddc
= PC_DIMM_GET_CLASS(dimm
);
2192 MemoryRegion
*mr
= ddc
->get_memory_region(dimm
);
2193 uint64_t align
= memory_region_get_alignment(mr
);
2194 uint64_t size
= memory_region_size(mr
);
2197 if (size
% SPAPR_MEMORY_BLOCK_SIZE
) {
2198 error_setg(&local_err
, "Hotplugged memory size must be a multiple of "
2199 "%lld MB", SPAPR_MEMORY_BLOCK_SIZE
/M_BYTE
);
2203 pc_dimm_memory_plug(dev
, &ms
->hotplug_memory
, mr
, align
, &local_err
);
2208 addr
= object_property_get_int(OBJECT(dimm
), PC_DIMM_ADDR_PROP
, &local_err
);
2210 pc_dimm_memory_unplug(dev
, &ms
->hotplug_memory
, mr
);
2214 spapr_add_lmbs(dev
, addr
, size
, node
, &error_abort
);
2217 error_propagate(errp
, local_err
);
2220 static void spapr_machine_device_plug(HotplugHandler
*hotplug_dev
,
2221 DeviceState
*dev
, Error
**errp
)
2223 sPAPRMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(qdev_get_machine());
2225 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
2228 if (!smc
->dr_lmb_enabled
) {
2229 error_setg(errp
, "Memory hotplug not supported for this machine");
2232 node
= object_property_get_int(OBJECT(dev
), PC_DIMM_NODE_PROP
, errp
);
2238 * Currently PowerPC kernel doesn't allow hot-adding memory to
2239 * memory-less node, but instead will silently add the memory
2240 * to the first node that has some memory. This causes two
2241 * unexpected behaviours for the user.
2243 * - Memory gets hotplugged to a different node than what the user
2245 * - Since pc-dimm subsystem in QEMU still thinks that memory belongs
2246 * to memory-less node, a reboot will set things accordingly
2247 * and the previously hotplugged memory now ends in the right node.
2248 * This appears as if some memory moved from one node to another.
2250 * So until kernel starts supporting memory hotplug to memory-less
2251 * nodes, just prevent such attempts upfront in QEMU.
2253 if (nb_numa_nodes
&& !numa_info
[node
].node_mem
) {
2254 error_setg(errp
, "Can't hotplug memory to memory-less node %d",
2259 spapr_memory_plug(hotplug_dev
, dev
, node
, errp
);
2263 static void spapr_machine_device_unplug(HotplugHandler
*hotplug_dev
,
2264 DeviceState
*dev
, Error
**errp
)
2266 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
2267 error_setg(errp
, "Memory hot unplug not supported by sPAPR");
2271 static HotplugHandler
*spapr_get_hotpug_handler(MachineState
*machine
,
2274 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
2275 return HOTPLUG_HANDLER(machine
);
2280 static unsigned spapr_cpu_index_to_socket_id(unsigned cpu_index
)
2282 /* Allocate to NUMA nodes on a "socket" basis (not that concept of
2283 * socket means much for the paravirtualized PAPR platform) */
2284 return cpu_index
/ smp_threads
/ smp_cores
;
2287 static void spapr_machine_class_init(ObjectClass
*oc
, void *data
)
2289 MachineClass
*mc
= MACHINE_CLASS(oc
);
2290 sPAPRMachineClass
*smc
= SPAPR_MACHINE_CLASS(oc
);
2291 FWPathProviderClass
*fwc
= FW_PATH_PROVIDER_CLASS(oc
);
2292 NMIClass
*nc
= NMI_CLASS(oc
);
2293 HotplugHandlerClass
*hc
= HOTPLUG_HANDLER_CLASS(oc
);
2295 mc
->desc
= "pSeries Logical Partition (PAPR compliant)";
2298 * We set up the default / latest behaviour here. The class_init
2299 * functions for the specific versioned machine types can override
2300 * these details for backwards compatibility
2302 mc
->init
= ppc_spapr_init
;
2303 mc
->reset
= ppc_spapr_reset
;
2304 mc
->block_default_type
= IF_SCSI
;
2305 mc
->max_cpus
= MAX_CPUMASK_BITS
;
2306 mc
->no_parallel
= 1;
2307 mc
->default_boot_order
= "";
2308 mc
->default_ram_size
= 512 * M_BYTE
;
2309 mc
->kvm_type
= spapr_kvm_type
;
2310 mc
->has_dynamic_sysbus
= true;
2311 mc
->pci_allow_0_address
= true;
2312 mc
->get_hotplug_handler
= spapr_get_hotpug_handler
;
2313 hc
->plug
= spapr_machine_device_plug
;
2314 hc
->unplug
= spapr_machine_device_unplug
;
2315 mc
->cpu_index_to_socket_id
= spapr_cpu_index_to_socket_id
;
2317 smc
->dr_lmb_enabled
= true;
2318 fwc
->get_dev_path
= spapr_get_fw_dev_path
;
2319 nc
->nmi_monitor_handler
= spapr_nmi
;
2322 static const TypeInfo spapr_machine_info
= {
2323 .name
= TYPE_SPAPR_MACHINE
,
2324 .parent
= TYPE_MACHINE
,
2326 .instance_size
= sizeof(sPAPRMachineState
),
2327 .instance_init
= spapr_machine_initfn
,
2328 .instance_finalize
= spapr_machine_finalizefn
,
2329 .class_size
= sizeof(sPAPRMachineClass
),
2330 .class_init
= spapr_machine_class_init
,
2331 .interfaces
= (InterfaceInfo
[]) {
2332 { TYPE_FW_PATH_PROVIDER
},
2334 { TYPE_HOTPLUG_HANDLER
},
2339 #define DEFINE_SPAPR_MACHINE(suffix, verstr, latest) \
2340 static void spapr_machine_##suffix##_class_init(ObjectClass *oc, \
2343 MachineClass *mc = MACHINE_CLASS(oc); \
2344 spapr_machine_##suffix##_class_options(mc); \
2346 mc->alias = "pseries"; \
2347 mc->is_default = 1; \
2350 static void spapr_machine_##suffix##_instance_init(Object *obj) \
2352 MachineState *machine = MACHINE(obj); \
2353 spapr_machine_##suffix##_instance_options(machine); \
2355 static const TypeInfo spapr_machine_##suffix##_info = { \
2356 .name = MACHINE_TYPE_NAME("pseries-" verstr), \
2357 .parent = TYPE_SPAPR_MACHINE, \
2358 .class_init = spapr_machine_##suffix##_class_init, \
2359 .instance_init = spapr_machine_##suffix##_instance_init, \
2361 static void spapr_machine_register_##suffix(void) \
2363 type_register(&spapr_machine_##suffix##_info); \
2365 machine_init(spapr_machine_register_##suffix)
2370 static void spapr_machine_2_6_instance_options(MachineState
*machine
)
2374 static void spapr_machine_2_6_class_options(MachineClass
*mc
)
2376 /* Defaults for the latest behaviour inherited from the base class */
2379 DEFINE_SPAPR_MACHINE(2_6
, "2.6", true);
2384 #define SPAPR_COMPAT_2_5 \
2387 static void spapr_machine_2_5_instance_options(MachineState
*machine
)
2391 static void spapr_machine_2_5_class_options(MachineClass
*mc
)
2393 sPAPRMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
2395 spapr_machine_2_6_class_options(mc
);
2396 smc
->use_ohci_by_default
= true;
2397 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_5
);
2400 DEFINE_SPAPR_MACHINE(2_5
, "2.5", false);
2405 #define SPAPR_COMPAT_2_4 \
2408 static void spapr_machine_2_4_instance_options(MachineState
*machine
)
2410 spapr_machine_2_5_instance_options(machine
);
2413 static void spapr_machine_2_4_class_options(MachineClass
*mc
)
2415 sPAPRMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
2417 spapr_machine_2_5_class_options(mc
);
2418 smc
->dr_lmb_enabled
= false;
2419 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_4
);
2422 DEFINE_SPAPR_MACHINE(2_4
, "2.4", false);
2427 #define SPAPR_COMPAT_2_3 \
2431 .driver = "spapr-pci-host-bridge",\
2432 .property = "dynamic-reconfiguration",\
2436 static void spapr_machine_2_3_instance_options(MachineState
*machine
)
2438 spapr_machine_2_4_instance_options(machine
);
2439 savevm_skip_section_footers();
2440 global_state_set_optional();
2443 static void spapr_machine_2_3_class_options(MachineClass
*mc
)
2445 spapr_machine_2_4_class_options(mc
);
2446 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_3
);
2448 DEFINE_SPAPR_MACHINE(2_3
, "2.3", false);
2454 #define SPAPR_COMPAT_2_2 \
2458 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE,\
2459 .property = "mem_win_size",\
2460 .value = "0x20000000",\
2463 static void spapr_machine_2_2_instance_options(MachineState
*machine
)
2465 spapr_machine_2_3_instance_options(machine
);
2468 static void spapr_machine_2_2_class_options(MachineClass
*mc
)
2470 spapr_machine_2_3_class_options(mc
);
2471 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_2
);
2473 DEFINE_SPAPR_MACHINE(2_2
, "2.2", false);
2478 #define SPAPR_COMPAT_2_1 \
2482 static void spapr_machine_2_1_instance_options(MachineState
*machine
)
2484 spapr_machine_2_2_instance_options(machine
);
2487 static void spapr_machine_2_1_class_options(MachineClass
*mc
)
2489 spapr_machine_2_2_class_options(mc
);
2490 SET_MACHINE_COMPAT(mc
, SPAPR_COMPAT_2_1
);
2492 DEFINE_SPAPR_MACHINE(2_1
, "2.1", false);
2494 static void spapr_machine_register_types(void)
2496 type_register_static(&spapr_machine_info
);
2499 type_init(spapr_machine_register_types
)