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ivshmem: Plug leaks on unplug, fix peer disconnect
[qemu/ar7.git] / hw / ppc / spapr.c
blobd0bb42305bc9a17e347896694cdc7b9eedf10d4b
1 /*
2 * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
3 *
4 * Copyright (c) 2004-2007 Fabrice Bellard
5 * Copyright (c) 2007 Jocelyn Mayer
6 * Copyright (c) 2010 David Gibson, IBM Corporation.
7 *
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:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
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
24 * THE SOFTWARE.
25 *
26 */
27 #include "qemu/osdep.h"
28 #include "sysemu/sysemu.h"
29 #include "sysemu/numa.h"
30 #include "hw/hw.h"
31 #include "hw/fw-path-provider.h"
32 #include "elf.h"
33 #include "net/net.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"
39 #include "kvm_ppc.h"
40 #include "migration/migration.h"
41 #include "mmu-hash64.h"
42 #include "qom/cpu.h"
43
44 #include "hw/boards.h"
45 #include "hw/ppc/ppc.h"
46 #include "hw/loader.h"
47
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"
53
54 #include "hw/pci/pci.h"
55 #include "hw/scsi/scsi.h"
56 #include "hw/virtio/virtio-scsi.h"
57
58 #include "exec/address-spaces.h"
59 #include "hw/usb.h"
60 #include "qemu/config-file.h"
61 #include "qemu/error-report.h"
62 #include "trace.h"
63 #include "hw/nmi.h"
64
65 #include "hw/compat.h"
66 #include "qemu-common.h"
67
68 #include <libfdt.h>
69
70 /* SLOF memory layout:
71 *
72 * SLOF raw image loaded at 0, copies its romfs right below the flat
73 * device-tree, then position SLOF itself 31M below that
74 *
75 * So we set FW_OVERHEAD to 40MB which should account for all of that
76 * and more
77 *
78 * We load our kernel at 4M, leaving space for SLOF initial image
79 */
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
87
88 #define MIN_RMA_SLOF 128UL
89
90 #define TIMEBASE_FREQ 512000000ULL
91
92 #define PHANDLE_XICP 0x00001111
93
94 #define HTAB_SIZE(spapr) (1ULL << ((spapr)->htab_shift))
95
96 static XICSState *try_create_xics(const char *type, int nr_servers,
97 int nr_irqs, Error **errp)
98 {
99 Error *err = NULL;
100 DeviceState *dev;
101
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);
106 if (err) {
107 error_propagate(errp, err);
108 object_unparent(OBJECT(dev));
109 return NULL;
110 }
111 return XICS_COMMON(dev);
112 }
113
114 static XICSState *xics_system_init(MachineState *machine,
115 int nr_servers, int nr_irqs, Error **errp)
116 {
117 XICSState *icp = NULL;
118
119 if (kvm_enabled()) {
120 Error *err = NULL;
121
122 if (machine_kernel_irqchip_allowed(machine)) {
123 icp = try_create_xics(TYPE_KVM_XICS, nr_servers, nr_irqs, &err);
124 }
125 if (machine_kernel_irqchip_required(machine) && !icp) {
126 error_reportf_err(err,
127 "kernel_irqchip requested but unavailable: ");
128 } else {
129 error_free(err);
130 }
131 }
132
133 if (!icp) {
134 icp = try_create_xics(TYPE_XICS, nr_servers, nr_irqs, errp);
135 }
136
137 return icp;
138 }
139
140 static int spapr_fixup_cpu_smt_dt(void *fdt, int offset, PowerPCCPU *cpu,
141 int smt_threads)
142 {
143 int i, ret = 0;
144 uint32_t servers_prop[smt_threads];
145 uint32_t gservers_prop[smt_threads * 2];
146 int index = ppc_get_vcpu_dt_id(cpu);
147
148 if (cpu->cpu_version) {
149 ret = fdt_setprop_cell(fdt, offset, "cpu-version", cpu->cpu_version);
150 if (ret < 0) {
151 return ret;
152 }
153 }
154
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;
161 }
162 ret = fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s",
163 servers_prop, sizeof(servers_prop));
164 if (ret < 0) {
165 return ret;
166 }
167 ret = fdt_setprop(fdt, offset, "ibm,ppc-interrupt-gserver#s",
168 gservers_prop, sizeof(gservers_prop));
169
170 return ret;
171 }
172
173 static int spapr_fixup_cpu_numa_dt(void *fdt, int offset, CPUState *cs)
174 {
175 int ret = 0;
176 PowerPCCPU *cpu = POWERPC_CPU(cs);
177 int index = ppc_get_vcpu_dt_id(cpu);
178 uint32_t associativity[] = {cpu_to_be32(0x5),
179 cpu_to_be32(0x0),
180 cpu_to_be32(0x0),
181 cpu_to_be32(0x0),
182 cpu_to_be32(cs->numa_node),
183 cpu_to_be32(index)};
184
185 /* Advertise NUMA via ibm,associativity */
186 if (nb_numa_nodes > 1) {
187 ret = fdt_setprop(fdt, offset, "ibm,associativity", associativity,
188 sizeof(associativity));
189 }
190
191 return ret;
192 }
193
194 static int spapr_fixup_cpu_dt(void *fdt, sPAPRMachineState *spapr)
195 {
196 int ret = 0, offset, cpus_offset;
197 CPUState *cs;
198 char cpu_model[32];
199 int smt = kvmppc_smt_threads();
200 uint32_t pft_size_prop[] = {0, cpu_to_be32(spapr->htab_shift)};
201
202 CPU_FOREACH(cs) {
203 PowerPCCPU *cpu = POWERPC_CPU(cs);
204 DeviceClass *dc = DEVICE_GET_CLASS(cs);
205 int index = ppc_get_vcpu_dt_id(cpu);
206
207 if ((index % smt) != 0) {
208 continue;
209 }
210
211 snprintf(cpu_model, 32, "%s@%x", dc->fw_name, index);
212
213 cpus_offset = fdt_path_offset(fdt, "/cpus");
214 if (cpus_offset < 0) {
215 cpus_offset = fdt_add_subnode(fdt, fdt_path_offset(fdt, "/"),
216 "cpus");
217 if (cpus_offset < 0) {
218 return cpus_offset;
219 }
220 }
221 offset = fdt_subnode_offset(fdt, cpus_offset, cpu_model);
222 if (offset < 0) {
223 offset = fdt_add_subnode(fdt, cpus_offset, cpu_model);
224 if (offset < 0) {
225 return offset;
226 }
227 }
228
229 ret = fdt_setprop(fdt, offset, "ibm,pft-size",
230 pft_size_prop, sizeof(pft_size_prop));
231 if (ret < 0) {
232 return ret;
233 }
234
235 ret = spapr_fixup_cpu_numa_dt(fdt, offset, cs);
236 if (ret < 0) {
237 return ret;
238 }
239
240 ret = spapr_fixup_cpu_smt_dt(fdt, offset, cpu,
241 ppc_get_compat_smt_threads(cpu));
242 if (ret < 0) {
243 return ret;
244 }
245 }
246 return ret;
247 }
248
249
250 static size_t create_page_sizes_prop(CPUPPCState *env, uint32_t *prop,
251 size_t maxsize)
252 {
253 size_t maxcells = maxsize / sizeof(uint32_t);
254 int i, j, count;
255 uint32_t *p = prop;
256
257 for (i = 0; i < PPC_PAGE_SIZES_MAX_SZ; i++) {
258 struct ppc_one_seg_page_size *sps = &env->sps.sps[i];
259
260 if (!sps->page_shift) {
261 break;
262 }
263 for (count = 0; count < PPC_PAGE_SIZES_MAX_SZ; count++) {
264 if (sps->enc[count].page_shift == 0) {
265 break;
266 }
267 }
268 if ((p - prop) >= (maxcells - 3 - count * 2)) {
269 break;
270 }
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);
277 }
278 }
279
280 return (p - prop) * sizeof(uint32_t);
281 }
282
283 static hwaddr spapr_node0_size(void)
284 {
285 MachineState *machine = MACHINE(qdev_get_machine());
286
287 if (nb_numa_nodes) {
288 int i;
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),
292 machine->ram_size);
293 }
294 }
295 }
296 return machine->ram_size;
297 }
298
299 #define _FDT(exp) \
300 do { \
301 int ret = (exp); \
302 if (ret < 0) { \
303 fprintf(stderr, "qemu: error creating device tree: %s: %s\n", \
304 #exp, fdt_strerror(ret)); \
305 exit(1); \
306 } \
307 } while (0)
308
309 static void add_str(GString *s, const gchar *s1)
310 {
311 g_string_append_len(s, s1, strlen(s1) + 1);
312 }
313
314 static void *spapr_create_fdt_skel(hwaddr initrd_base,
315 hwaddr initrd_size,
316 hwaddr kernel_size,
317 bool little_endian,
318 const char *kernel_cmdline,
319 uint32_t epow_irq)
320 {
321 void *fdt;
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};
329 char *buf;
330
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");
341
342 fdt = g_malloc0(FDT_MAX_SIZE);
343 _FDT((fdt_create(fdt, FDT_MAX_SIZE)));
344
345 if (kernel_size) {
346 _FDT((fdt_add_reservemap_entry(fdt, KERNEL_LOAD_ADDR, kernel_size)));
347 }
348 if (initrd_size) {
349 _FDT((fdt_add_reservemap_entry(fdt, initrd_base, initrd_size)));
350 }
351 _FDT((fdt_finish_reservemap(fdt)));
352
353 /* Root node */
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")));
358
359 /*
360 * Add info to guest to indentify which host is it being run on
361 * and what is the uuid of the guest
362 */
363 if (kvmppc_get_host_model(&buf)) {
364 _FDT((fdt_property_string(fdt, "host-model", buf)));
365 g_free(buf);
366 }
367 if (kvmppc_get_host_serial(&buf)) {
368 _FDT((fdt_property_string(fdt, "host-serial", buf)));
369 g_free(buf);
370 }
371
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]);
378
379 _FDT((fdt_property_string(fdt, "vm,uuid", buf)));
380 if (qemu_uuid_set) {
381 _FDT((fdt_property_string(fdt, "system-id", buf)));
382 }
383 g_free(buf);
384
385 if (qemu_get_vm_name()) {
386 _FDT((fdt_property_string(fdt, "ibm,partition-name",
387 qemu_get_vm_name())));
388 }
389
390 _FDT((fdt_property_cell(fdt, "#address-cells", 0x2)));
391 _FDT((fdt_property_cell(fdt, "#size-cells", 0x2)));
392
393 /* /chosen */
394 _FDT((fdt_begin_node(fdt, "chosen")));
395
396 /* Set Form1_affinity */
397 _FDT((fdt_property(fdt, "ibm,architecture-vec-5", vec5, sizeof(vec5))));
398
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))));
404 if (kernel_size) {
405 uint64_t kprop[2] = { cpu_to_be64(KERNEL_LOAD_ADDR),
406 cpu_to_be64(kernel_size) };
407
408 _FDT((fdt_property(fdt, "qemu,boot-kernel", &kprop, sizeof(kprop))));
409 if (little_endian) {
410 _FDT((fdt_property(fdt, "qemu,boot-kernel-le", NULL, 0)));
411 }
412 }
413 if (boot_menu) {
414 _FDT((fdt_property_cell(fdt, "qemu,boot-menu", boot_menu)));
415 }
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)));
419
420 _FDT((fdt_end_node(fdt)));
421
422 /* RTAS */
423 _FDT((fdt_begin_node(fdt, "rtas")));
424
425 if (!kvm_enabled() || kvmppc_spapr_use_multitce()) {
426 add_str(hypertas, "hcall-multi-tce");
427 }
428 _FDT((fdt_property(fdt, "ibm,hypertas-functions", hypertas->str,
429 hypertas->len)));
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);
434
435 _FDT((fdt_property(fdt, "ibm,associativity-reference-points",
436 refpoints, sizeof(refpoints))));
437
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)));
441
442 if (msi_nonbroken) {
443 _FDT((fdt_property(fdt, "ibm,change-msix-capable", NULL, 0)));
444 }
445
446 /*
447 * According to PAPR, rtas ibm,os-term does not guarantee a return
448 * back to the guest cpu.
449 *
450 * While an additional ibm,extended-os-term property indicates that
451 * rtas call return will always occur. Set this property.
452 */
453 _FDT((fdt_property(fdt, "ibm,extended-os-term", NULL, 0)));
454
455 _FDT((fdt_end_node(fdt)));
456
457 /* interrupt controller */
458 _FDT((fdt_begin_node(fdt, "interrupt-controller")));
459
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)));
470
471 _FDT((fdt_end_node(fdt)));
472
473 /* vdevice */
474 _FDT((fdt_begin_node(fdt, "vdevice")));
475
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)));
482
483 _FDT((fdt_end_node(fdt)));
484
485 /* event-sources */
486 spapr_events_fdt_skel(fdt, epow_irq);
487
488 /* /hypervisor node */
489 if (kvm_enabled()) {
490 uint8_t hypercall[16];
491
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()) {
496 /*
497 * Older KVM versions with older guest kernels were broken with the
498 * magic page, don't allow the guest to map it.
499 */
500 kvmppc_get_hypercall(first_cpu->env_ptr, hypercall,
501 sizeof(hypercall));
502 _FDT((fdt_property(fdt, "hcall-instructions", hypercall,
503 sizeof(hypercall))));
504 }
505 _FDT((fdt_end_node(fdt)));
506 }
507
508 _FDT((fdt_end_node(fdt))); /* close root node */
509 _FDT((fdt_finish(fdt)));
510
511 return fdt;
512 }
513
514 static int spapr_populate_memory_node(void *fdt, int nodeid, hwaddr start,
515 hwaddr size)
516 {
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)
521 };
522 char mem_name[32];
523 uint64_t mem_reg_property[2];
524 int off;
525
526 mem_reg_property[0] = cpu_to_be64(start);
527 mem_reg_property[1] = cpu_to_be64(size);
528
529 sprintf(mem_name, "memory@" TARGET_FMT_lx, start);
530 off = fdt_add_subnode(fdt, 0, mem_name);
531 _FDT(off);
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))));
537 return off;
538 }
539
540 static int spapr_populate_memory(sPAPRMachineState *spapr, void *fdt)
541 {
542 MachineState *machine = MACHINE(spapr);
543 hwaddr mem_start, node_size;
544 int i, nb_nodes = nb_numa_nodes;
545 NodeInfo *nodes = numa_info;
546 NodeInfo ramnode;
547
548 /* No NUMA nodes, assume there is just one node with whole RAM */
549 if (!nb_numa_nodes) {
550 nb_nodes = 1;
551 ramnode.node_mem = machine->ram_size;
552 nodes = &ramnode;
553 }
554
555 for (i = 0, mem_start = 0; i < nb_nodes; ++i) {
556 if (!nodes[i].node_mem) {
557 continue;
558 }
559 if (mem_start >= machine->ram_size) {
560 node_size = 0;
561 } else {
562 node_size = nodes[i].node_mem;
563 if (node_size > machine->ram_size - mem_start) {
564 node_size = machine->ram_size - mem_start;
565 }
566 }
567 if (!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;
572 }
573 for ( ; node_size; ) {
574 hwaddr sizetmp = pow2floor(node_size);
575
576 /* mem_start != 0 here */
577 if (ctzl(mem_start) < ctzl(sizetmp)) {
578 sizetmp = 1ULL << ctzl(mem_start);
579 }
580
581 spapr_populate_memory_node(fdt, i, mem_start, sizetmp);
582 node_size -= sizetmp;
583 mem_start += sizetmp;
584 }
585 }
586
587 return 0;
588 }
589
590 static void spapr_populate_cpu_dt(CPUState *cs, void *fdt, int offset,
591 sPAPRMachineState *spapr)
592 {
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)};
605
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.
610 *
611 * We can later add this bit back when we are confident this is not
612 * an issue (!HV KVM or 64K host)
613 */
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;
622 size_t pa_size;
623
624 _FDT((fdt_setprop_cell(fdt, offset, "reg", index)));
625 _FDT((fdt_setprop_string(fdt, offset, "device_type", "cpu")));
626
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)));
636
637 if (pcc->l1_dcache_size) {
638 _FDT((fdt_setprop_cell(fdt, offset, "d-cache-size",
639 pcc->l1_dcache_size)));
640 } else {
641 fprintf(stderr, "Warning: Unknown L1 dcache size for cpu\n");
642 }
643 if (pcc->l1_icache_size) {
644 _FDT((fdt_setprop_cell(fdt, offset, "i-cache-size",
645 pcc->l1_icache_size)));
646 } else {
647 fprintf(stderr, "Warning: Unknown L1 icache size for cpu\n");
648 }
649
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)));
656
657 if (env->spr_cb[SPR_PURR].oea_read) {
658 _FDT((fdt_setprop(fdt, offset, "ibm,purr", NULL, 0)));
659 }
660
661 if (env->mmu_model & POWERPC_MMU_1TSEG) {
662 _FDT((fdt_setprop(fdt, offset, "ibm,processor-segment-sizes",
663 segs, sizeof(segs))));
664 }
665
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;
672
673 _FDT((fdt_setprop_cell(fdt, offset, "ibm,vmx", vmx)));
674 }
675
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)));
681 }
682
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)));
688 }
689
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);
697 }
698 if (env->ci_large_pages) {
699 pa_features[3] |= 0x20;
700 }
701 _FDT((fdt_setprop(fdt, offset, "ibm,pa-features", pa_features, pa_size)));
702
703 _FDT((fdt_setprop_cell(fdt, offset, "ibm,chip-id",
704 cs->cpu_index / vcpus_per_socket)));
705
706 _FDT((fdt_setprop(fdt, offset, "ibm,pft-size",
707 pft_size_prop, sizeof(pft_size_prop))));
708
709 _FDT(spapr_fixup_cpu_numa_dt(fdt, offset, cs));
710
711 _FDT(spapr_fixup_cpu_smt_dt(fdt, offset, cpu,
712 ppc_get_compat_smt_threads(cpu)));
713 }
714
715 static void spapr_populate_cpus_dt_node(void *fdt, sPAPRMachineState *spapr)
716 {
717 CPUState *cs;
718 int cpus_offset;
719 char *nodename;
720 int smt = kvmppc_smt_threads();
721
722 cpus_offset = fdt_add_subnode(fdt, 0, "cpus");
723 _FDT(cpus_offset);
724 _FDT((fdt_setprop_cell(fdt, cpus_offset, "#address-cells", 0x1)));
725 _FDT((fdt_setprop_cell(fdt, cpus_offset, "#size-cells", 0x0)));
726
727 /*
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.
731 */
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);
736 int offset;
737
738 if ((index % smt) != 0) {
739 continue;
740 }
741
742 nodename = g_strdup_printf("%s@%x", dc->fw_name, index);
743 offset = fdt_add_subnode(fdt, cpus_offset, nodename);
744 g_free(nodename);
745 _FDT(offset);
746 spapr_populate_cpu_dt(cs, fdt, offset, spapr);
747 }
748
749 }
750
751 /*
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.
755 */
756 static int spapr_populate_drconf_memory(sPAPRMachineState *spapr, void *fdt)
757 {
758 MachineState *machine = MACHINE(spapr);
759 int ret, i, offset;
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;
765
766 /*
767 * Don't create the node if there are no DR LMBs.
768 */
769 if (!nr_lmbs) {
770 return 0;
771 }
772
773 /*
774 * Allocate enough buffer size to fit in ibm,dynamic-memory
775 * or ibm,associativity-lookup-arrays
776 */
777 buf_len = MAX(nr_lmbs * SPAPR_DR_LMB_LIST_ENTRY_SIZE + 1, nr_nodes * 4 + 2)
778 * sizeof(uint32_t);
779 cur_index = int_buf = g_malloc0(buf_len);
780
781 offset = fdt_add_subnode(fdt, 0, "ibm,dynamic-reconfiguration-memory");
782
783 ret = fdt_setprop(fdt, offset, "ibm,lmb-size", prop_lmb_size,
784 sizeof(prop_lmb_size));
785 if (ret < 0) {
786 goto out;
787 }
788
789 ret = fdt_setprop_cell(fdt, offset, "ibm,memory-flags-mask", 0xff);
790 if (ret < 0) {
791 goto out;
792 }
793
794 ret = fdt_setprop_cell(fdt, offset, "ibm,memory-preservation-time", 0x0);
795 if (ret < 0) {
796 goto out;
797 }
798
799 /* ibm,dynamic-memory */
800 int_buf[0] = cpu_to_be32(nr_lmbs);
801 cur_index++;
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;
807
808 drc = spapr_dr_connector_by_id(SPAPR_DR_CONNECTOR_TYPE_LMB,
809 addr/lmb_size);
810 g_assert(drc);
811 drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
812
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);
821 } else {
822 dynamic_memory[5] = cpu_to_be32(0);
823 }
824
825 cur_index += SPAPR_DR_LMB_LIST_ENTRY_SIZE;
826 }
827 ret = fdt_setprop(fdt, offset, "ibm,dynamic-memory", int_buf, buf_len);
828 if (ret < 0) {
829 goto out;
830 }
831
832 /* ibm,associativity-lookup-arrays */
833 cur_index = int_buf;
834 int_buf[0] = cpu_to_be32(nr_nodes);
835 int_buf[1] = cpu_to_be32(4); /* Number of entries per associativity list */
836 cur_index += 2;
837 for (i = 0; i < nr_nodes; i++) {
838 uint32_t associativity[] = {
839 cpu_to_be32(0x0),
840 cpu_to_be32(0x0),
841 cpu_to_be32(0x0),
842 cpu_to_be32(i)
843 };
844 memcpy(cur_index, associativity, sizeof(associativity));
845 cur_index += 4;
846 }
847 ret = fdt_setprop(fdt, offset, "ibm,associativity-lookup-arrays", int_buf,
848 (cur_index - int_buf) * sizeof(uint32_t));
849 out:
850 g_free(int_buf);
851 return ret;
852 }
853
854 int spapr_h_cas_compose_response(sPAPRMachineState *spapr,
855 target_ulong addr, target_ulong size,
856 bool cpu_update, bool memory_update)
857 {
858 void *fdt, *fdt_skel;
859 sPAPRDeviceTreeUpdateHeader hdr = { .version_id = 1 };
860 sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(qdev_get_machine());
861
862 size -= sizeof(hdr);
863
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)));
872 g_free(fdt_skel);
873
874 /* Fixup cpu nodes */
875 if (cpu_update) {
876 _FDT((spapr_fixup_cpu_dt(fdt, spapr)));
877 }
878
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)));
882 }
883
884 /* Pack resulting tree */
885 _FDT((fdt_pack(fdt)));
886
887 if (fdt_totalsize(fdt) + sizeof(hdr) > size) {
888 trace_spapr_cas_failed(size);
889 return -1;
890 }
891
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));
895 g_free(fdt);
896
897 return 0;
898 }
899
900 static void spapr_finalize_fdt(sPAPRMachineState *spapr,
901 hwaddr fdt_addr,
902 hwaddr rtas_addr,
903 hwaddr rtas_size)
904 {
905 MachineState *machine = MACHINE(qdev_get_machine());
906 sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine);
907 const char *boot_device = machine->boot_order;
908 int ret, i;
909 size_t cb = 0;
910 char *bootlist;
911 void *fdt;
912 sPAPRPHBState *phb;
913
914 fdt = g_malloc(FDT_MAX_SIZE);
915
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)));
918
919 ret = spapr_populate_memory(spapr, fdt);
920 if (ret < 0) {
921 fprintf(stderr, "couldn't setup memory nodes in fdt\n");
922 exit(1);
923 }
924
925 ret = spapr_populate_vdevice(spapr->vio_bus, fdt);
926 if (ret < 0) {
927 fprintf(stderr, "couldn't setup vio devices in fdt\n");
928 exit(1);
929 }
930
931 if (object_resolve_path_type("", TYPE_SPAPR_RNG, NULL)) {
932 ret = spapr_rng_populate_dt(fdt);
933 if (ret < 0) {
934 fprintf(stderr, "could not set up rng device in the fdt\n");
935 exit(1);
936 }
937 }
938
939 QLIST_FOREACH(phb, &spapr->phbs, list) {
940 ret = spapr_populate_pci_dt(phb, PHANDLE_XICP, fdt);
941 }
942
943 if (ret < 0) {
944 fprintf(stderr, "couldn't setup PCI devices in fdt\n");
945 exit(1);
946 }
947
948 /* RTAS */
949 ret = spapr_rtas_device_tree_setup(fdt, rtas_addr, rtas_size);
950 if (ret < 0) {
951 fprintf(stderr, "Couldn't set up RTAS device tree properties\n");
952 }
953
954 /* cpus */
955 spapr_populate_cpus_dt_node(fdt, spapr);
956
957 bootlist = get_boot_devices_list(&cb, true);
958 if (cb && bootlist) {
959 int offset = fdt_path_offset(fdt, "/chosen");
960 if (offset < 0) {
961 exit(1);
962 }
963 for (i = 0; i < cb; i++) {
964 if (bootlist[i] == '\n') {
965 bootlist[i] = ' ';
966 }
967
968 }
969 ret = fdt_setprop_string(fdt, offset, "qemu,boot-list", bootlist);
970 }
971
972 if (boot_device && strlen(boot_device)) {
973 int offset = fdt_path_offset(fdt, "/chosen");
974
975 if (offset < 0) {
976 exit(1);
977 }
978 fdt_setprop_string(fdt, offset, "qemu,boot-device", boot_device);
979 }
980
981 if (!spapr->has_graphics) {
982 spapr_populate_chosen_stdout(fdt, spapr->vio_bus);
983 }
984
985 if (smc->dr_lmb_enabled) {
986 _FDT(spapr_drc_populate_dt(fdt, 0, NULL, SPAPR_DR_CONNECTOR_TYPE_LMB));
987 }
988
989 _FDT((fdt_pack(fdt)));
990
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);
994 exit(1);
995 }
996
997 qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt));
998 cpu_physical_memory_write(fdt_addr, fdt, fdt_totalsize(fdt));
999
1000 g_free(bootlist);
1001 g_free(fdt);
1002 }
1003
1004 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
1005 {
1006 return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
1007 }
1008
1009 static void emulate_spapr_hypercall(PowerPCCPU *cpu)
1010 {
1011 CPUPPCState *env = &cpu->env;
1012
1013 if (msr_pr) {
1014 hcall_dprintf("Hypercall made with MSR[PR]=1\n");
1015 env->gpr[3] = H_PRIVILEGE;
1016 } else {
1017 env->gpr[3] = spapr_hypercall(cpu, env->gpr[3], &env->gpr[4]);
1018 }
1019 }
1020
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))
1026
1027 /*
1028 * Get the fd to access the kernel htab, re-opening it if necessary
1029 */
1030 static int get_htab_fd(sPAPRMachineState *spapr)
1031 {
1032 if (spapr->htab_fd >= 0) {
1033 return spapr->htab_fd;
1034 }
1035
1036 spapr->htab_fd = kvmppc_get_htab_fd(false);
1037 if (spapr->htab_fd < 0) {
1038 error_report("Unable to open fd for reading hash table from KVM: %s",
1039 strerror(errno));
1040 }
1041
1042 return spapr->htab_fd;
1043 }
1044
1045 static void close_htab_fd(sPAPRMachineState *spapr)
1046 {
1047 if (spapr->htab_fd >= 0) {
1048 close(spapr->htab_fd);
1049 }
1050 spapr->htab_fd = -1;
1051 }
1052
1053 static int spapr_hpt_shift_for_ramsize(uint64_t ramsize)
1054 {
1055 int shift;
1056
1057 /* We aim for a hash table of size 1/128 the size of RAM (rounded
1058 * up). The PAPR recommendation is actually 1/64 of RAM size, but
1059 * that's much more than is needed for Linux guests */
1060 shift = ctz64(pow2ceil(ramsize)) - 7;
1061 shift = MAX(shift, 18); /* Minimum architected size */
1062 shift = MIN(shift, 46); /* Maximum architected size */
1063 return shift;
1064 }
1065
1066 static void spapr_reallocate_hpt(sPAPRMachineState *spapr, int shift,
1067 Error **errp)
1068 {
1069 long rc;
1070
1071 /* Clean up any HPT info from a previous boot */
1072 g_free(spapr->htab);
1073 spapr->htab = NULL;
1074 spapr->htab_shift = 0;
1075 close_htab_fd(spapr);
1076
1077 rc = kvmppc_reset_htab(shift);
1078 if (rc < 0) {
1079 /* kernel-side HPT needed, but couldn't allocate one */
1080 error_setg_errno(errp, errno,
1081 "Failed to allocate KVM HPT of order %d (try smaller maxmem?)",
1082 shift);
1083 /* This is almost certainly fatal, but if the caller really
1084 * wants to carry on with shift == 0, it's welcome to try */
1085 } else if (rc > 0) {
1086 /* kernel-side HPT allocated */
1087 if (rc != shift) {
1088 error_setg(errp,
1089 "Requested order %d HPT, but kernel allocated order %ld (try smaller maxmem?)",
1090 shift, rc);
1091 }
1092
1093 spapr->htab_shift = shift;
1094 spapr->htab = NULL;
1095 } else {
1096 /* kernel-side HPT not needed, allocate in userspace instead */
1097 size_t size = 1ULL << shift;
1098 int i;
1099
1100 spapr->htab = qemu_memalign(size, size);
1101 if (!spapr->htab) {
1102 error_setg_errno(errp, errno,
1103 "Could not allocate HPT of order %d", shift);
1104 return;
1105 }
1106
1107 memset(spapr->htab, 0, size);
1108 spapr->htab_shift = shift;
1109
1110 for (i = 0; i < size / HASH_PTE_SIZE_64; i++) {
1111 DIRTY_HPTE(HPTE(spapr->htab, i));
1112 }
1113 }
1114 }
1115
1116 static int find_unknown_sysbus_device(SysBusDevice *sbdev, void *opaque)
1117 {
1118 bool matched = false;
1119
1120 if (object_dynamic_cast(OBJECT(sbdev), TYPE_SPAPR_PCI_HOST_BRIDGE)) {
1121 matched = true;
1122 }
1123
1124 if (!matched) {
1125 error_report("Device %s is not supported by this machine yet.",
1126 qdev_fw_name(DEVICE(sbdev)));
1127 exit(1);
1128 }
1129
1130 return 0;
1131 }
1132
1133 static void ppc_spapr_reset(void)
1134 {
1135 MachineState *machine = MACHINE(qdev_get_machine());
1136 sPAPRMachineState *spapr = SPAPR_MACHINE(machine);
1137 PowerPCCPU *first_ppc_cpu;
1138 uint32_t rtas_limit;
1139
1140 /* Check for unknown sysbus devices */
1141 foreach_dynamic_sysbus_device(find_unknown_sysbus_device, NULL);
1142
1143 /* Allocate and/or reset the hash page table */
1144 spapr_reallocate_hpt(spapr,
1145 spapr_hpt_shift_for_ramsize(machine->maxram_size),
1146 &error_fatal);
1147
1148 /* Update the RMA size if necessary */
1149 if (spapr->vrma_adjust) {
1150 spapr->rma_size = kvmppc_rma_size(spapr_node0_size(),
1151 spapr->htab_shift);
1152 }
1153
1154 qemu_devices_reset();
1155
1156 /*
1157 * We place the device tree and RTAS just below either the top of the RMA,
1158 * or just below 2GB, whichever is lowere, so that it can be
1159 * processed with 32-bit real mode code if necessary
1160 */
1161 rtas_limit = MIN(spapr->rma_size, RTAS_MAX_ADDR);
1162 spapr->rtas_addr = rtas_limit - RTAS_MAX_SIZE;
1163 spapr->fdt_addr = spapr->rtas_addr - FDT_MAX_SIZE;
1164
1165 /* Load the fdt */
1166 spapr_finalize_fdt(spapr, spapr->fdt_addr, spapr->rtas_addr,
1167 spapr->rtas_size);
1168
1169 /* Copy RTAS over */
1170 cpu_physical_memory_write(spapr->rtas_addr, spapr->rtas_blob,
1171 spapr->rtas_size);
1172
1173 /* Set up the entry state */
1174 first_ppc_cpu = POWERPC_CPU(first_cpu);
1175 first_ppc_cpu->env.gpr[3] = spapr->fdt_addr;
1176 first_ppc_cpu->env.gpr[5] = 0;
1177 first_cpu->halted = 0;
1178 first_ppc_cpu->env.nip = SPAPR_ENTRY_POINT;
1179
1180 }
1181
1182 static void spapr_cpu_reset(void *opaque)
1183 {
1184 sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
1185 PowerPCCPU *cpu = opaque;
1186 CPUState *cs = CPU(cpu);
1187 CPUPPCState *env = &cpu->env;
1188
1189 cpu_reset(cs);
1190
1191 /* All CPUs start halted. CPU0 is unhalted from the machine level
1192 * reset code and the rest are explicitly started up by the guest
1193 * using an RTAS call */
1194 cs->halted = 1;
1195
1196 env->spr[SPR_HIOR] = 0;
1197
1198 ppc_hash64_set_external_hpt(cpu, spapr->htab, spapr->htab_shift,
1199 &error_fatal);
1200 }
1201
1202 static void spapr_create_nvram(sPAPRMachineState *spapr)
1203 {
1204 DeviceState *dev = qdev_create(&spapr->vio_bus->bus, "spapr-nvram");
1205 DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0);
1206
1207 if (dinfo) {
1208 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(dinfo),
1209 &error_fatal);
1210 }
1211
1212 qdev_init_nofail(dev);
1213
1214 spapr->nvram = (struct sPAPRNVRAM *)dev;
1215 }
1216
1217 static void spapr_rtc_create(sPAPRMachineState *spapr)
1218 {
1219 DeviceState *dev = qdev_create(NULL, TYPE_SPAPR_RTC);
1220
1221 qdev_init_nofail(dev);
1222 spapr->rtc = dev;
1223
1224 object_property_add_alias(qdev_get_machine(), "rtc-time",
1225 OBJECT(spapr->rtc), "date", NULL);
1226 }
1227
1228 /* Returns whether we want to use VGA or not */
1229 static bool spapr_vga_init(PCIBus *pci_bus, Error **errp)
1230 {
1231 switch (vga_interface_type) {
1232 case VGA_NONE:
1233 return false;
1234 case VGA_DEVICE:
1235 return true;
1236 case VGA_STD:
1237 case VGA_VIRTIO:
1238 return pci_vga_init(pci_bus) != NULL;
1239 default:
1240 error_setg(errp,
1241 "Unsupported VGA mode, only -vga std or -vga virtio is supported");
1242 return false;
1243 }
1244 }
1245
1246 static int spapr_post_load(void *opaque, int version_id)
1247 {
1248 sPAPRMachineState *spapr = (sPAPRMachineState *)opaque;
1249 int err = 0;
1250
1251 /* In earlier versions, there was no separate qdev for the PAPR
1252 * RTC, so the RTC offset was stored directly in sPAPREnvironment.
1253 * So when migrating from those versions, poke the incoming offset
1254 * value into the RTC device */
1255 if (version_id < 3) {
1256 err = spapr_rtc_import_offset(spapr->rtc, spapr->rtc_offset);
1257 }
1258
1259 return err;
1260 }
1261
1262 static bool version_before_3(void *opaque, int version_id)
1263 {
1264 return version_id < 3;
1265 }
1266
1267 static const VMStateDescription vmstate_spapr = {
1268 .name = "spapr",
1269 .version_id = 3,
1270 .minimum_version_id = 1,
1271 .post_load = spapr_post_load,
1272 .fields = (VMStateField[]) {
1273 /* used to be @next_irq */
1274 VMSTATE_UNUSED_BUFFER(version_before_3, 0, 4),
1275
1276 /* RTC offset */
1277 VMSTATE_UINT64_TEST(rtc_offset, sPAPRMachineState, version_before_3),
1278
1279 VMSTATE_PPC_TIMEBASE_V(tb, sPAPRMachineState, 2),
1280 VMSTATE_END_OF_LIST()
1281 },
1282 };
1283
1284 static int htab_save_setup(QEMUFile *f, void *opaque)
1285 {
1286 sPAPRMachineState *spapr = opaque;
1287
1288 /* "Iteration" header */
1289 qemu_put_be32(f, spapr->htab_shift);
1290
1291 if (spapr->htab) {
1292 spapr->htab_save_index = 0;
1293 spapr->htab_first_pass = true;
1294 } else {
1295 assert(kvm_enabled());
1296 }
1297
1298
1299 return 0;
1300 }
1301
1302 static void htab_save_first_pass(QEMUFile *f, sPAPRMachineState *spapr,
1303 int64_t max_ns)
1304 {
1305 bool has_timeout = max_ns != -1;
1306 int htabslots = HTAB_SIZE(spapr) / HASH_PTE_SIZE_64;
1307 int index = spapr->htab_save_index;
1308 int64_t starttime = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
1309
1310 assert(spapr->htab_first_pass);
1311
1312 do {
1313 int chunkstart;
1314
1315 /* Consume invalid HPTEs */
1316 while ((index < htabslots)
1317 && !HPTE_VALID(HPTE(spapr->htab, index))) {
1318 index++;
1319 CLEAN_HPTE(HPTE(spapr->htab, index));
1320 }
1321
1322 /* Consume valid HPTEs */
1323 chunkstart = index;
1324 while ((index < htabslots) && (index - chunkstart < USHRT_MAX)
1325 && HPTE_VALID(HPTE(spapr->htab, index))) {
1326 index++;
1327 CLEAN_HPTE(HPTE(spapr->htab, index));
1328 }
1329
1330 if (index > chunkstart) {
1331 int n_valid = index - chunkstart;
1332
1333 qemu_put_be32(f, chunkstart);
1334 qemu_put_be16(f, n_valid);
1335 qemu_put_be16(f, 0);
1336 qemu_put_buffer(f, HPTE(spapr->htab, chunkstart),
1337 HASH_PTE_SIZE_64 * n_valid);
1338
1339 if (has_timeout &&
1340 (qemu_clock_get_ns(QEMU_CLOCK_REALTIME) - starttime) > max_ns) {
1341 break;
1342 }
1343 }
1344 } while ((index < htabslots) && !qemu_file_rate_limit(f));
1345
1346 if (index >= htabslots) {
1347 assert(index == htabslots);
1348 index = 0;
1349 spapr->htab_first_pass = false;
1350 }
1351 spapr->htab_save_index = index;
1352 }
1353
1354 static int htab_save_later_pass(QEMUFile *f, sPAPRMachineState *spapr,
1355 int64_t max_ns)
1356 {
1357 bool final = max_ns < 0;
1358 int htabslots = HTAB_SIZE(spapr) / HASH_PTE_SIZE_64;
1359 int examined = 0, sent = 0;
1360 int index = spapr->htab_save_index;
1361 int64_t starttime = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
1362
1363 assert(!spapr->htab_first_pass);
1364
1365 do {
1366 int chunkstart, invalidstart;
1367
1368 /* Consume non-dirty HPTEs */
1369 while ((index < htabslots)
1370 && !HPTE_DIRTY(HPTE(spapr->htab, index))) {
1371 index++;
1372 examined++;
1373 }
1374
1375 chunkstart = index;
1376 /* Consume valid dirty HPTEs */
1377 while ((index < htabslots) && (index - chunkstart < USHRT_MAX)
1378 && HPTE_DIRTY(HPTE(spapr->htab, index))
1379 && HPTE_VALID(HPTE(spapr->htab, index))) {
1380 CLEAN_HPTE(HPTE(spapr->htab, index));
1381 index++;
1382 examined++;
1383 }
1384
1385 invalidstart = index;
1386 /* Consume invalid dirty HPTEs */
1387 while ((index < htabslots) && (index - invalidstart < USHRT_MAX)
1388 && HPTE_DIRTY(HPTE(spapr->htab, index))
1389 && !HPTE_VALID(HPTE(spapr->htab, index))) {
1390 CLEAN_HPTE(HPTE(spapr->htab, index));
1391 index++;
1392 examined++;
1393 }
1394
1395 if (index > chunkstart) {
1396 int n_valid = invalidstart - chunkstart;
1397 int n_invalid = index - invalidstart;
1398
1399 qemu_put_be32(f, chunkstart);
1400 qemu_put_be16(f, n_valid);
1401 qemu_put_be16(f, n_invalid);
1402 qemu_put_buffer(f, HPTE(spapr->htab, chunkstart),
1403 HASH_PTE_SIZE_64 * n_valid);
1404 sent += index - chunkstart;
1405
1406 if (!final && (qemu_clock_get_ns(QEMU_CLOCK_REALTIME) - starttime) > max_ns) {
1407 break;
1408 }
1409 }
1410
1411 if (examined >= htabslots) {
1412 break;
1413 }
1414
1415 if (index >= htabslots) {
1416 assert(index == htabslots);
1417 index = 0;
1418 }
1419 } while ((examined < htabslots) && (!qemu_file_rate_limit(f) || final));
1420
1421 if (index >= htabslots) {
1422 assert(index == htabslots);
1423 index = 0;
1424 }
1425
1426 spapr->htab_save_index = index;
1427
1428 return (examined >= htabslots) && (sent == 0) ? 1 : 0;
1429 }
1430
1431 #define MAX_ITERATION_NS 5000000 /* 5 ms */
1432 #define MAX_KVM_BUF_SIZE 2048
1433
1434 static int htab_save_iterate(QEMUFile *f, void *opaque)
1435 {
1436 sPAPRMachineState *spapr = opaque;
1437 int fd;
1438 int rc = 0;
1439
1440 /* Iteration header */
1441 qemu_put_be32(f, 0);
1442
1443 if (!spapr->htab) {
1444 assert(kvm_enabled());
1445
1446 fd = get_htab_fd(spapr);
1447 if (fd < 0) {
1448 return fd;
1449 }
1450
1451 rc = kvmppc_save_htab(f, fd, MAX_KVM_BUF_SIZE, MAX_ITERATION_NS);
1452 if (rc < 0) {
1453 return rc;
1454 }
1455 } else if (spapr->htab_first_pass) {
1456 htab_save_first_pass(f, spapr, MAX_ITERATION_NS);
1457 } else {
1458 rc = htab_save_later_pass(f, spapr, MAX_ITERATION_NS);
1459 }
1460
1461 /* End marker */
1462 qemu_put_be32(f, 0);
1463 qemu_put_be16(f, 0);
1464 qemu_put_be16(f, 0);
1465
1466 return rc;
1467 }
1468
1469 static int htab_save_complete(QEMUFile *f, void *opaque)
1470 {
1471 sPAPRMachineState *spapr = opaque;
1472 int fd;
1473
1474 /* Iteration header */
1475 qemu_put_be32(f, 0);
1476
1477 if (!spapr->htab) {
1478 int rc;
1479
1480 assert(kvm_enabled());
1481
1482 fd = get_htab_fd(spapr);
1483 if (fd < 0) {
1484 return fd;
1485 }
1486
1487 rc = kvmppc_save_htab(f, fd, MAX_KVM_BUF_SIZE, -1);
1488 if (rc < 0) {
1489 return rc;
1490 }
1491 close_htab_fd(spapr);
1492 } else {
1493 if (spapr->htab_first_pass) {
1494 htab_save_first_pass(f, spapr, -1);
1495 }
1496 htab_save_later_pass(f, spapr, -1);
1497 }
1498
1499 /* End marker */
1500 qemu_put_be32(f, 0);
1501 qemu_put_be16(f, 0);
1502 qemu_put_be16(f, 0);
1503
1504 return 0;
1505 }
1506
1507 static int htab_load(QEMUFile *f, void *opaque, int version_id)
1508 {
1509 sPAPRMachineState *spapr = opaque;
1510 uint32_t section_hdr;
1511 int fd = -1;
1512
1513 if (version_id < 1 || version_id > 1) {
1514 error_report("htab_load() bad version");
1515 return -EINVAL;
1516 }
1517
1518 section_hdr = qemu_get_be32(f);
1519
1520 if (section_hdr) {
1521 Error *local_err = NULL;
1522
1523 /* First section gives the htab size */
1524 spapr_reallocate_hpt(spapr, section_hdr, &local_err);
1525 if (local_err) {
1526 error_report_err(local_err);
1527 return -EINVAL;
1528 }
1529 return 0;
1530 }
1531
1532 if (!spapr->htab) {
1533 assert(kvm_enabled());
1534
1535 fd = kvmppc_get_htab_fd(true);
1536 if (fd < 0) {
1537 error_report("Unable to open fd to restore KVM hash table: %s",
1538 strerror(errno));
1539 }
1540 }
1541
1542 while (true) {
1543 uint32_t index;
1544 uint16_t n_valid, n_invalid;
1545
1546 index = qemu_get_be32(f);
1547 n_valid = qemu_get_be16(f);
1548 n_invalid = qemu_get_be16(f);
1549
1550 if ((index == 0) && (n_valid == 0) && (n_invalid == 0)) {
1551 /* End of Stream */
1552 break;
1553 }
1554
1555 if ((index + n_valid + n_invalid) >
1556 (HTAB_SIZE(spapr) / HASH_PTE_SIZE_64)) {
1557 /* Bad index in stream */
1558 error_report(
1559 "htab_load() bad index %d (%hd+%hd entries) in htab stream (htab_shift=%d)",
1560 index, n_valid, n_invalid, spapr->htab_shift);
1561 return -EINVAL;
1562 }
1563
1564 if (spapr->htab) {
1565 if (n_valid) {
1566 qemu_get_buffer(f, HPTE(spapr->htab, index),
1567 HASH_PTE_SIZE_64 * n_valid);
1568 }
1569 if (n_invalid) {
1570 memset(HPTE(spapr->htab, index + n_valid), 0,
1571 HASH_PTE_SIZE_64 * n_invalid);
1572 }
1573 } else {
1574 int rc;
1575
1576 assert(fd >= 0);
1577
1578 rc = kvmppc_load_htab_chunk(f, fd, index, n_valid, n_invalid);
1579 if (rc < 0) {
1580 return rc;
1581 }
1582 }
1583 }
1584
1585 if (!spapr->htab) {
1586 assert(fd >= 0);
1587 close(fd);
1588 }
1589
1590 return 0;
1591 }
1592
1593 static SaveVMHandlers savevm_htab_handlers = {
1594 .save_live_setup = htab_save_setup,
1595 .save_live_iterate = htab_save_iterate,
1596 .save_live_complete_precopy = htab_save_complete,
1597 .load_state = htab_load,
1598 };
1599
1600 static void spapr_boot_set(void *opaque, const char *boot_device,
1601 Error **errp)
1602 {
1603 MachineState *machine = MACHINE(qdev_get_machine());
1604 machine->boot_order = g_strdup(boot_device);
1605 }
1606
1607 static void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu,
1608 Error **errp)
1609 {
1610 CPUPPCState *env = &cpu->env;
1611
1612 /* Set time-base frequency to 512 MHz */
1613 cpu_ppc_tb_init(env, TIMEBASE_FREQ);
1614
1615 /* PAPR always has exception vectors in RAM not ROM. To ensure this,
1616 * MSR[IP] should never be set.
1617 */
1618 env->msr_mask &= ~(1 << 6);
1619
1620 /* Tell KVM that we're in PAPR mode */
1621 if (kvm_enabled()) {
1622 kvmppc_set_papr(cpu);
1623 }
1624
1625 if (cpu->max_compat) {
1626 Error *local_err = NULL;
1627
1628 ppc_set_compat(cpu, cpu->max_compat, &local_err);
1629 if (local_err) {
1630 error_propagate(errp, local_err);
1631 return;
1632 }
1633 }
1634
1635 xics_cpu_setup(spapr->icp, cpu);
1636
1637 qemu_register_reset(spapr_cpu_reset, cpu);
1638 }
1639
1640 /*
1641 * Reset routine for LMB DR devices.
1642 *
1643 * Unlike PCI DR devices, LMB DR devices explicitly register this reset
1644 * routine. Reset for PCI DR devices will be handled by PHB reset routine
1645 * when it walks all its children devices. LMB devices reset occurs
1646 * as part of spapr_ppc_reset().
1647 */
1648 static void spapr_drc_reset(void *opaque)
1649 {
1650 sPAPRDRConnector *drc = opaque;
1651 DeviceState *d = DEVICE(drc);
1652
1653 if (d) {
1654 device_reset(d);
1655 }
1656 }
1657
1658 static void spapr_create_lmb_dr_connectors(sPAPRMachineState *spapr)
1659 {
1660 MachineState *machine = MACHINE(spapr);
1661 uint64_t lmb_size = SPAPR_MEMORY_BLOCK_SIZE;
1662 uint32_t nr_lmbs = (machine->maxram_size - machine->ram_size)/lmb_size;
1663 int i;
1664
1665 for (i = 0; i < nr_lmbs; i++) {
1666 sPAPRDRConnector *drc;
1667 uint64_t addr;
1668
1669 addr = i * lmb_size + spapr->hotplug_memory.base;
1670 drc = spapr_dr_connector_new(OBJECT(spapr), SPAPR_DR_CONNECTOR_TYPE_LMB,
1671 addr/lmb_size);
1672 qemu_register_reset(spapr_drc_reset, drc);
1673 }
1674 }
1675
1676 /*
1677 * If RAM size, maxmem size and individual node mem sizes aren't aligned
1678 * to SPAPR_MEMORY_BLOCK_SIZE(256MB), then refuse to start the guest
1679 * since we can't support such unaligned sizes with DRCONF_MEMORY.
1680 */
1681 static void spapr_validate_node_memory(MachineState *machine, Error **errp)
1682 {
1683 int i;
1684
1685 if (machine->ram_size % SPAPR_MEMORY_BLOCK_SIZE) {
1686 error_setg(errp, "Memory size 0x" RAM_ADDR_FMT
1687 " is not aligned to %llu MiB",
1688 machine->ram_size,
1689 SPAPR_MEMORY_BLOCK_SIZE / M_BYTE);
1690 return;
1691 }
1692
1693 if (machine->maxram_size % SPAPR_MEMORY_BLOCK_SIZE) {
1694 error_setg(errp, "Maximum memory size 0x" RAM_ADDR_FMT
1695 " is not aligned to %llu MiB",
1696 machine->ram_size,
1697 SPAPR_MEMORY_BLOCK_SIZE / M_BYTE);
1698 return;
1699 }
1700
1701 for (i = 0; i < nb_numa_nodes; i++) {
1702 if (numa_info[i].node_mem % SPAPR_MEMORY_BLOCK_SIZE) {
1703 error_setg(errp,
1704 "Node %d memory size 0x%" PRIx64
1705 " is not aligned to %llu MiB",
1706 i, numa_info[i].node_mem,
1707 SPAPR_MEMORY_BLOCK_SIZE / M_BYTE);
1708 return;
1709 }
1710 }
1711 }
1712
1713 /* pSeries LPAR / sPAPR hardware init */
1714 static void ppc_spapr_init(MachineState *machine)
1715 {
1716 sPAPRMachineState *spapr = SPAPR_MACHINE(machine);
1717 sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine);
1718 const char *kernel_filename = machine->kernel_filename;
1719 const char *kernel_cmdline = machine->kernel_cmdline;
1720 const char *initrd_filename = machine->initrd_filename;
1721 PowerPCCPU *cpu;
1722 PCIHostState *phb;
1723 int i;
1724 MemoryRegion *sysmem = get_system_memory();
1725 MemoryRegion *ram = g_new(MemoryRegion, 1);
1726 MemoryRegion *rma_region;
1727 void *rma = NULL;
1728 hwaddr rma_alloc_size;
1729 hwaddr node0_size = spapr_node0_size();
1730 uint32_t initrd_base = 0;
1731 long kernel_size = 0, initrd_size = 0;
1732 long load_limit, fw_size;
1733 bool kernel_le = false;
1734 char *filename;
1735
1736 msi_nonbroken = true;
1737
1738 QLIST_INIT(&spapr->phbs);
1739
1740 cpu_ppc_hypercall = emulate_spapr_hypercall;
1741
1742 /* Allocate RMA if necessary */
1743 rma_alloc_size = kvmppc_alloc_rma(&rma);
1744
1745 if (rma_alloc_size == -1) {
1746 error_report("Unable to create RMA");
1747 exit(1);
1748 }
1749
1750 if (rma_alloc_size && (rma_alloc_size < node0_size)) {
1751 spapr->rma_size = rma_alloc_size;
1752 } else {
1753 spapr->rma_size = node0_size;
1754
1755 /* With KVM, we don't actually know whether KVM supports an
1756 * unbounded RMA (PR KVM) or is limited by the hash table size
1757 * (HV KVM using VRMA), so we always assume the latter
1758 *
1759 * In that case, we also limit the initial allocations for RTAS
1760 * etc... to 256M since we have no way to know what the VRMA size
1761 * is going to be as it depends on the size of the hash table
1762 * isn't determined yet.
1763 */
1764 if (kvm_enabled()) {
1765 spapr->vrma_adjust = 1;
1766 spapr->rma_size = MIN(spapr->rma_size, 0x10000000);
1767 }
1768 }
1769
1770 if (spapr->rma_size > node0_size) {
1771 error_report("Numa node 0 has to span the RMA (%#08"HWADDR_PRIx")",
1772 spapr->rma_size);
1773 exit(1);
1774 }
1775
1776 /* Setup a load limit for the ramdisk leaving room for SLOF and FDT */
1777 load_limit = MIN(spapr->rma_size, RTAS_MAX_ADDR) - FW_OVERHEAD;
1778
1779 /* Set up Interrupt Controller before we create the VCPUs */
1780 spapr->icp = xics_system_init(machine,
1781 DIV_ROUND_UP(max_cpus * kvmppc_smt_threads(),
1782 smp_threads),
1783 XICS_IRQS, &error_fatal);
1784
1785 if (smc->dr_lmb_enabled) {
1786 spapr_validate_node_memory(machine, &error_fatal);
1787 }
1788
1789 /* init CPUs */
1790 if (machine->cpu_model == NULL) {
1791 machine->cpu_model = kvm_enabled() ? "host" : "POWER7";
1792 }
1793 for (i = 0; i < smp_cpus; i++) {
1794 cpu = cpu_ppc_init(machine->cpu_model);
1795 if (cpu == NULL) {
1796 error_report("Unable to find PowerPC CPU definition");
1797 exit(1);
1798 }
1799 spapr_cpu_init(spapr, cpu, &error_fatal);
1800 }
1801
1802 if (kvm_enabled()) {
1803 /* Enable H_LOGICAL_CI_* so SLOF can talk to in-kernel devices */
1804 kvmppc_enable_logical_ci_hcalls();
1805 kvmppc_enable_set_mode_hcall();
1806 }
1807
1808 /* allocate RAM */
1809 memory_region_allocate_system_memory(ram, NULL, "ppc_spapr.ram",
1810 machine->ram_size);
1811 memory_region_add_subregion(sysmem, 0, ram);
1812
1813 if (rma_alloc_size && rma) {
1814 rma_region = g_new(MemoryRegion, 1);
1815 memory_region_init_ram_ptr(rma_region, NULL, "ppc_spapr.rma",
1816 rma_alloc_size, rma);
1817 vmstate_register_ram_global(rma_region);
1818 memory_region_add_subregion(sysmem, 0, rma_region);
1819 }
1820
1821 /* initialize hotplug memory address space */
1822 if (machine->ram_size < machine->maxram_size) {
1823 ram_addr_t hotplug_mem_size = machine->maxram_size - machine->ram_size;
1824
1825 if (machine->ram_slots > SPAPR_MAX_RAM_SLOTS) {
1826 error_report("Specified number of memory slots %"
1827 PRIu64" exceeds max supported %d",
1828 machine->ram_slots, SPAPR_MAX_RAM_SLOTS);
1829 exit(1);
1830 }
1831
1832 spapr->hotplug_memory.base = ROUND_UP(machine->ram_size,
1833 SPAPR_HOTPLUG_MEM_ALIGN);
1834 memory_region_init(&spapr->hotplug_memory.mr, OBJECT(spapr),
1835 "hotplug-memory", hotplug_mem_size);
1836 memory_region_add_subregion(sysmem, spapr->hotplug_memory.base,
1837 &spapr->hotplug_memory.mr);
1838 }
1839
1840 if (smc->dr_lmb_enabled) {
1841 spapr_create_lmb_dr_connectors(spapr);
1842 }
1843
1844 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "spapr-rtas.bin");
1845 if (!filename) {
1846 error_report("Could not find LPAR rtas '%s'", "spapr-rtas.bin");
1847 exit(1);
1848 }
1849 spapr->rtas_size = get_image_size(filename);
1850 spapr->rtas_blob = g_malloc(spapr->rtas_size);
1851 if (load_image_size(filename, spapr->rtas_blob, spapr->rtas_size) < 0) {
1852 error_report("Could not load LPAR rtas '%s'", filename);
1853 exit(1);
1854 }
1855 if (spapr->rtas_size > RTAS_MAX_SIZE) {
1856 error_report("RTAS too big ! 0x%zx bytes (max is 0x%x)",
1857 (size_t)spapr->rtas_size, RTAS_MAX_SIZE);
1858 exit(1);
1859 }
1860 g_free(filename);
1861
1862 /* Set up EPOW events infrastructure */
1863 spapr_events_init(spapr);
1864
1865 /* Set up the RTC RTAS interfaces */
1866 spapr_rtc_create(spapr);
1867
1868 /* Set up VIO bus */
1869 spapr->vio_bus = spapr_vio_bus_init();
1870
1871 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
1872 if (serial_hds[i]) {
1873 spapr_vty_create(spapr->vio_bus, serial_hds[i]);
1874 }
1875 }
1876
1877 /* We always have at least the nvram device on VIO */
1878 spapr_create_nvram(spapr);
1879
1880 /* Set up PCI */
1881 spapr_pci_rtas_init();
1882
1883 phb = spapr_create_phb(spapr, 0);
1884
1885 for (i = 0; i < nb_nics; i++) {
1886 NICInfo *nd = &nd_table[i];
1887
1888 if (!nd->model) {
1889 nd->model = g_strdup("ibmveth");
1890 }
1891
1892 if (strcmp(nd->model, "ibmveth") == 0) {
1893 spapr_vlan_create(spapr->vio_bus, nd);
1894 } else {
1895 pci_nic_init_nofail(&nd_table[i], phb->bus, nd->model, NULL);
1896 }
1897 }
1898
1899 for (i = 0; i <= drive_get_max_bus(IF_SCSI); i++) {
1900 spapr_vscsi_create(spapr->vio_bus);
1901 }
1902
1903 /* Graphics */
1904 if (spapr_vga_init(phb->bus, &error_fatal)) {
1905 spapr->has_graphics = true;
1906 machine->usb |= defaults_enabled() && !machine->usb_disabled;
1907 }
1908
1909 if (machine->usb) {
1910 if (smc->use_ohci_by_default) {
1911 pci_create_simple(phb->bus, -1, "pci-ohci");
1912 } else {
1913 pci_create_simple(phb->bus, -1, "nec-usb-xhci");
1914 }
1915
1916 if (spapr->has_graphics) {
1917 USBBus *usb_bus = usb_bus_find(-1);
1918
1919 usb_create_simple(usb_bus, "usb-kbd");
1920 usb_create_simple(usb_bus, "usb-mouse");
1921 }
1922 }
1923
1924 if (spapr->rma_size < (MIN_RMA_SLOF << 20)) {
1925 error_report(
1926 "pSeries SLOF firmware requires >= %ldM guest RMA (Real Mode Area memory)",
1927 MIN_RMA_SLOF);
1928 exit(1);
1929 }
1930
1931 if (kernel_filename) {
1932 uint64_t lowaddr = 0;
1933
1934 kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
1935 NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE,
1936 0, 0);
1937 if (kernel_size == ELF_LOAD_WRONG_ENDIAN) {
1938 kernel_size = load_elf(kernel_filename,
1939 translate_kernel_address, NULL,
1940 NULL, &lowaddr, NULL, 0, PPC_ELF_MACHINE,
1941 0, 0);
1942 kernel_le = kernel_size > 0;
1943 }
1944 if (kernel_size < 0) {
1945 error_report("error loading %s: %s",
1946 kernel_filename, load_elf_strerror(kernel_size));
1947 exit(1);
1948 }
1949
1950 /* load initrd */
1951 if (initrd_filename) {
1952 /* Try to locate the initrd in the gap between the kernel
1953 * and the firmware. Add a bit of space just in case
1954 */
1955 initrd_base = (KERNEL_LOAD_ADDR + kernel_size + 0x1ffff) & ~0xffff;
1956 initrd_size = load_image_targphys(initrd_filename, initrd_base,
1957 load_limit - initrd_base);
1958 if (initrd_size < 0) {
1959 error_report("could not load initial ram disk '%s'",
1960 initrd_filename);
1961 exit(1);
1962 }
1963 } else {
1964 initrd_base = 0;
1965 initrd_size = 0;
1966 }
1967 }
1968
1969 if (bios_name == NULL) {
1970 bios_name = FW_FILE_NAME;
1971 }
1972 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
1973 if (!filename) {
1974 error_report("Could not find LPAR firmware '%s'", bios_name);
1975 exit(1);
1976 }
1977 fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE);
1978 if (fw_size <= 0) {
1979 error_report("Could not load LPAR firmware '%s'", filename);
1980 exit(1);
1981 }
1982 g_free(filename);
1983
1984 /* FIXME: Should register things through the MachineState's qdev
1985 * interface, this is a legacy from the sPAPREnvironment structure
1986 * which predated MachineState but had a similar function */
1987 vmstate_register(NULL, 0, &vmstate_spapr, spapr);
1988 register_savevm_live(NULL, "spapr/htab", -1, 1,
1989 &savevm_htab_handlers, spapr);
1990
1991 /* Prepare the device tree */
1992 spapr->fdt_skel = spapr_create_fdt_skel(initrd_base, initrd_size,
1993 kernel_size, kernel_le,
1994 kernel_cmdline,
1995 spapr->check_exception_irq);
1996 assert(spapr->fdt_skel != NULL);
1997
1998 /* used by RTAS */
1999 QTAILQ_INIT(&spapr->ccs_list);
2000 qemu_register_reset(spapr_ccs_reset_hook, spapr);
2001
2002 qemu_register_boot_set(spapr_boot_set, spapr);
2003 }
2004
2005 static int spapr_kvm_type(const char *vm_type)
2006 {
2007 if (!vm_type) {
2008 return 0;
2009 }
2010
2011 if (!strcmp(vm_type, "HV")) {
2012 return 1;
2013 }
2014
2015 if (!strcmp(vm_type, "PR")) {
2016 return 2;
2017 }
2018
2019 error_report("Unknown kvm-type specified '%s'", vm_type);
2020 exit(1);
2021 }
2022
2023 /*
2024 * Implementation of an interface to adjust firmware path
2025 * for the bootindex property handling.
2026 */
2027 static char *spapr_get_fw_dev_path(FWPathProvider *p, BusState *bus,
2028 DeviceState *dev)
2029 {
2030 #define CAST(type, obj, name) \
2031 ((type *)object_dynamic_cast(OBJECT(obj), (name)))
2032 SCSIDevice *d = CAST(SCSIDevice, dev, TYPE_SCSI_DEVICE);
2033 sPAPRPHBState *phb = CAST(sPAPRPHBState, dev, TYPE_SPAPR_PCI_HOST_BRIDGE);
2034
2035 if (d) {
2036 void *spapr = CAST(void, bus->parent, "spapr-vscsi");
2037 VirtIOSCSI *virtio = CAST(VirtIOSCSI, bus->parent, TYPE_VIRTIO_SCSI);
2038 USBDevice *usb = CAST(USBDevice, bus->parent, TYPE_USB_DEVICE);
2039
2040 if (spapr) {
2041 /*
2042 * Replace "channel@0/disk@0,0" with "disk@8000000000000000":
2043 * We use SRP luns of the form 8000 | (bus << 8) | (id << 5) | lun
2044 * in the top 16 bits of the 64-bit LUN
2045 */
2046 unsigned id = 0x8000 | (d->id << 8) | d->lun;
2047 return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev),
2048 (uint64_t)id << 48);
2049 } else if (virtio) {
2050 /*
2051 * We use SRP luns of the form 01000000 | (target << 8) | lun
2052 * in the top 32 bits of the 64-bit LUN
2053 * Note: the quote above is from SLOF and it is wrong,
2054 * the actual binding is:
2055 * swap 0100 or 10 << or 20 << ( target lun-id -- srplun )
2056 */
2057 unsigned id = 0x1000000 | (d->id << 16) | d->lun;
2058 return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev),
2059 (uint64_t)id << 32);
2060 } else if (usb) {
2061 /*
2062 * We use SRP luns of the form 01000000 | (usb-port << 16) | lun
2063 * in the top 32 bits of the 64-bit LUN
2064 */
2065 unsigned usb_port = atoi(usb->port->path);
2066 unsigned id = 0x1000000 | (usb_port << 16) | d->lun;
2067 return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev),
2068 (uint64_t)id << 32);
2069 }
2070 }
2071
2072 if (phb) {
2073 /* Replace "pci" with "pci@800000020000000" */
2074 return g_strdup_printf("pci@%"PRIX64, phb->buid);
2075 }
2076
2077 return NULL;
2078 }
2079
2080 static char *spapr_get_kvm_type(Object *obj, Error **errp)
2081 {
2082 sPAPRMachineState *spapr = SPAPR_MACHINE(obj);
2083
2084 return g_strdup(spapr->kvm_type);
2085 }
2086
2087 static void spapr_set_kvm_type(Object *obj, const char *value, Error **errp)
2088 {
2089 sPAPRMachineState *spapr = SPAPR_MACHINE(obj);
2090
2091 g_free(spapr->kvm_type);
2092 spapr->kvm_type = g_strdup(value);
2093 }
2094
2095 static void spapr_machine_initfn(Object *obj)
2096 {
2097 sPAPRMachineState *spapr = SPAPR_MACHINE(obj);
2098
2099 spapr->htab_fd = -1;
2100 object_property_add_str(obj, "kvm-type",
2101 spapr_get_kvm_type, spapr_set_kvm_type, NULL);
2102 object_property_set_description(obj, "kvm-type",
2103 "Specifies the KVM virtualization mode (HV, PR)",
2104 NULL);
2105 }
2106
2107 static void spapr_machine_finalizefn(Object *obj)
2108 {
2109 sPAPRMachineState *spapr = SPAPR_MACHINE(obj);
2110
2111 g_free(spapr->kvm_type);
2112 }
2113
2114 static void ppc_cpu_do_nmi_on_cpu(void *arg)
2115 {
2116 CPUState *cs = arg;
2117
2118 cpu_synchronize_state(cs);
2119 ppc_cpu_do_system_reset(cs);
2120 }
2121
2122 static void spapr_nmi(NMIState *n, int cpu_index, Error **errp)
2123 {
2124 CPUState *cs;
2125
2126 CPU_FOREACH(cs) {
2127 async_run_on_cpu(cs, ppc_cpu_do_nmi_on_cpu, cs);
2128 }
2129 }
2130
2131 static void spapr_add_lmbs(DeviceState *dev, uint64_t addr, uint64_t size,
2132 uint32_t node, Error **errp)
2133 {
2134 sPAPRDRConnector *drc;
2135 sPAPRDRConnectorClass *drck;
2136 uint32_t nr_lmbs = size/SPAPR_MEMORY_BLOCK_SIZE;
2137 int i, fdt_offset, fdt_size;
2138 void *fdt;
2139
2140 /*
2141 * Check for DRC connectors and send hotplug notification to the
2142 * guest only in case of hotplugged memory. This allows cold plugged
2143 * memory to be specified at boot time.
2144 */
2145 if (!dev->hotplugged) {
2146 return;
2147 }
2148
2149 for (i = 0; i < nr_lmbs; i++) {
2150 drc = spapr_dr_connector_by_id(SPAPR_DR_CONNECTOR_TYPE_LMB,
2151 addr/SPAPR_MEMORY_BLOCK_SIZE);
2152 g_assert(drc);
2153
2154 fdt = create_device_tree(&fdt_size);
2155 fdt_offset = spapr_populate_memory_node(fdt, node, addr,
2156 SPAPR_MEMORY_BLOCK_SIZE);
2157
2158 drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
2159 drck->attach(drc, dev, fdt, fdt_offset, !dev->hotplugged, errp);
2160 addr += SPAPR_MEMORY_BLOCK_SIZE;
2161 }
2162 spapr_hotplug_req_add_by_count(SPAPR_DR_CONNECTOR_TYPE_LMB, nr_lmbs);
2163 }
2164
2165 static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
2166 uint32_t node, Error **errp)
2167 {
2168 Error *local_err = NULL;
2169 sPAPRMachineState *ms = SPAPR_MACHINE(hotplug_dev);
2170 PCDIMMDevice *dimm = PC_DIMM(dev);
2171 PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
2172 MemoryRegion *mr = ddc->get_memory_region(dimm);
2173 uint64_t align = memory_region_get_alignment(mr);
2174 uint64_t size = memory_region_size(mr);
2175 uint64_t addr;
2176
2177 if (size % SPAPR_MEMORY_BLOCK_SIZE) {
2178 error_setg(&local_err, "Hotplugged memory size must be a multiple of "
2179 "%lld MB", SPAPR_MEMORY_BLOCK_SIZE/M_BYTE);
2180 goto out;
2181 }
2182
2183 pc_dimm_memory_plug(dev, &ms->hotplug_memory, mr, align, &local_err);
2184 if (local_err) {
2185 goto out;
2186 }
2187
2188 addr = object_property_get_int(OBJECT(dimm), PC_DIMM_ADDR_PROP, &local_err);
2189 if (local_err) {
2190 pc_dimm_memory_unplug(dev, &ms->hotplug_memory, mr);
2191 goto out;
2192 }
2193
2194 spapr_add_lmbs(dev, addr, size, node, &error_abort);
2195
2196 out:
2197 error_propagate(errp, local_err);
2198 }
2199
2200 static void spapr_machine_device_plug(HotplugHandler *hotplug_dev,
2201 DeviceState *dev, Error **errp)
2202 {
2203 sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(qdev_get_machine());
2204
2205 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
2206 int node;
2207
2208 if (!smc->dr_lmb_enabled) {
2209 error_setg(errp, "Memory hotplug not supported for this machine");
2210 return;
2211 }
2212 node = object_property_get_int(OBJECT(dev), PC_DIMM_NODE_PROP, errp);
2213 if (*errp) {
2214 return;
2215 }
2216
2217 /*
2218 * Currently PowerPC kernel doesn't allow hot-adding memory to
2219 * memory-less node, but instead will silently add the memory
2220 * to the first node that has some memory. This causes two
2221 * unexpected behaviours for the user.
2222 *
2223 * - Memory gets hotplugged to a different node than what the user
2224 * specified.
2225 * - Since pc-dimm subsystem in QEMU still thinks that memory belongs
2226 * to memory-less node, a reboot will set things accordingly
2227 * and the previously hotplugged memory now ends in the right node.
2228 * This appears as if some memory moved from one node to another.
2229 *
2230 * So until kernel starts supporting memory hotplug to memory-less
2231 * nodes, just prevent such attempts upfront in QEMU.
2232 */
2233 if (nb_numa_nodes && !numa_info[node].node_mem) {
2234 error_setg(errp, "Can't hotplug memory to memory-less node %d",
2235 node);
2236 return;
2237 }
2238
2239 spapr_memory_plug(hotplug_dev, dev, node, errp);
2240 }
2241 }
2242
2243 static void spapr_machine_device_unplug(HotplugHandler *hotplug_dev,
2244 DeviceState *dev, Error **errp)
2245 {
2246 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
2247 error_setg(errp, "Memory hot unplug not supported by sPAPR");
2248 }
2249 }
2250
2251 static HotplugHandler *spapr_get_hotpug_handler(MachineState *machine,
2252 DeviceState *dev)
2253 {
2254 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
2255 return HOTPLUG_HANDLER(machine);
2256 }
2257 return NULL;
2258 }
2259
2260 static unsigned spapr_cpu_index_to_socket_id(unsigned cpu_index)
2261 {
2262 /* Allocate to NUMA nodes on a "socket" basis (not that concept of
2263 * socket means much for the paravirtualized PAPR platform) */
2264 return cpu_index / smp_threads / smp_cores;
2265 }
2266
2267 static void spapr_machine_class_init(ObjectClass *oc, void *data)
2268 {
2269 MachineClass *mc = MACHINE_CLASS(oc);
2270 sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(oc);
2271 FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
2272 NMIClass *nc = NMI_CLASS(oc);
2273 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
2274
2275 mc->desc = "pSeries Logical Partition (PAPR compliant)";
2276
2277 /*
2278 * We set up the default / latest behaviour here. The class_init
2279 * functions for the specific versioned machine types can override
2280 * these details for backwards compatibility
2281 */
2282 mc->init = ppc_spapr_init;
2283 mc->reset = ppc_spapr_reset;
2284 mc->block_default_type = IF_SCSI;
2285 mc->max_cpus = MAX_CPUMASK_BITS;
2286 mc->no_parallel = 1;
2287 mc->default_boot_order = "";
2288 mc->default_ram_size = 512 * M_BYTE;
2289 mc->kvm_type = spapr_kvm_type;
2290 mc->has_dynamic_sysbus = true;
2291 mc->pci_allow_0_address = true;
2292 mc->get_hotplug_handler = spapr_get_hotpug_handler;
2293 hc->plug = spapr_machine_device_plug;
2294 hc->unplug = spapr_machine_device_unplug;
2295 mc->cpu_index_to_socket_id = spapr_cpu_index_to_socket_id;
2296
2297 smc->dr_lmb_enabled = true;
2298 fwc->get_dev_path = spapr_get_fw_dev_path;
2299 nc->nmi_monitor_handler = spapr_nmi;
2300 }
2301
2302 static const TypeInfo spapr_machine_info = {
2303 .name = TYPE_SPAPR_MACHINE,
2304 .parent = TYPE_MACHINE,
2305 .abstract = true,
2306 .instance_size = sizeof(sPAPRMachineState),
2307 .instance_init = spapr_machine_initfn,
2308 .instance_finalize = spapr_machine_finalizefn,
2309 .class_size = sizeof(sPAPRMachineClass),
2310 .class_init = spapr_machine_class_init,
2311 .interfaces = (InterfaceInfo[]) {
2312 { TYPE_FW_PATH_PROVIDER },
2313 { TYPE_NMI },
2314 { TYPE_HOTPLUG_HANDLER },
2315 { }
2316 },
2317 };
2318
2319 #define DEFINE_SPAPR_MACHINE(suffix, verstr, latest) \
2320 static void spapr_machine_##suffix##_class_init(ObjectClass *oc, \
2321 void *data) \
2322 { \
2323 MachineClass *mc = MACHINE_CLASS(oc); \
2324 spapr_machine_##suffix##_class_options(mc); \
2325 if (latest) { \
2326 mc->alias = "pseries"; \
2327 mc->is_default = 1; \
2328 } \
2329 } \
2330 static void spapr_machine_##suffix##_instance_init(Object *obj) \
2331 { \
2332 MachineState *machine = MACHINE(obj); \
2333 spapr_machine_##suffix##_instance_options(machine); \
2334 } \
2335 static const TypeInfo spapr_machine_##suffix##_info = { \
2336 .name = MACHINE_TYPE_NAME("pseries-" verstr), \
2337 .parent = TYPE_SPAPR_MACHINE, \
2338 .class_init = spapr_machine_##suffix##_class_init, \
2339 .instance_init = spapr_machine_##suffix##_instance_init, \
2340 }; \
2341 static void spapr_machine_register_##suffix(void) \
2342 { \
2343 type_register(&spapr_machine_##suffix##_info); \
2344 } \
2345 type_init(spapr_machine_register_##suffix)
2346
2347 /*
2348 * pseries-2.6
2349 */
2350 static void spapr_machine_2_6_instance_options(MachineState *machine)
2351 {
2352 }
2353
2354 static void spapr_machine_2_6_class_options(MachineClass *mc)
2355 {
2356 /* Defaults for the latest behaviour inherited from the base class */
2357 }
2358
2359 DEFINE_SPAPR_MACHINE(2_6, "2.6", true);
2360
2361 /*
2362 * pseries-2.5
2363 */
2364 #define SPAPR_COMPAT_2_5 \
2365 HW_COMPAT_2_5
2366
2367 static void spapr_machine_2_5_instance_options(MachineState *machine)
2368 {
2369 }
2370
2371 static void spapr_machine_2_5_class_options(MachineClass *mc)
2372 {
2373 sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
2374
2375 spapr_machine_2_6_class_options(mc);
2376 smc->use_ohci_by_default = true;
2377 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_5);
2378 }
2379
2380 DEFINE_SPAPR_MACHINE(2_5, "2.5", false);
2381
2382 /*
2383 * pseries-2.4
2384 */
2385 #define SPAPR_COMPAT_2_4 \
2386 SPAPR_COMPAT_2_5 \
2387 HW_COMPAT_2_4
2388
2389 static void spapr_machine_2_4_instance_options(MachineState *machine)
2390 {
2391 spapr_machine_2_5_instance_options(machine);
2392 }
2393
2394 static void spapr_machine_2_4_class_options(MachineClass *mc)
2395 {
2396 sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
2397
2398 spapr_machine_2_5_class_options(mc);
2399 smc->dr_lmb_enabled = false;
2400 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_4);
2401 }
2402
2403 DEFINE_SPAPR_MACHINE(2_4, "2.4", false);
2404
2405 /*
2406 * pseries-2.3
2407 */
2408 #define SPAPR_COMPAT_2_3 \
2409 SPAPR_COMPAT_2_4 \
2410 HW_COMPAT_2_3 \
2411 {\
2412 .driver = "spapr-pci-host-bridge",\
2413 .property = "dynamic-reconfiguration",\
2414 .value = "off",\
2415 },
2416
2417 static void spapr_machine_2_3_instance_options(MachineState *machine)
2418 {
2419 spapr_machine_2_4_instance_options(machine);
2420 savevm_skip_section_footers();
2421 global_state_set_optional();
2422 savevm_skip_configuration();
2423 }
2424
2425 static void spapr_machine_2_3_class_options(MachineClass *mc)
2426 {
2427 spapr_machine_2_4_class_options(mc);
2428 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_3);
2429 }
2430 DEFINE_SPAPR_MACHINE(2_3, "2.3", false);
2431
2432 /*
2433 * pseries-2.2
2434 */
2435
2436 #define SPAPR_COMPAT_2_2 \
2437 SPAPR_COMPAT_2_3 \
2438 HW_COMPAT_2_2 \
2439 {\
2440 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE,\
2441 .property = "mem_win_size",\
2442 .value = "0x20000000",\
2443 },
2444
2445 static void spapr_machine_2_2_instance_options(MachineState *machine)
2446 {
2447 spapr_machine_2_3_instance_options(machine);
2448 machine->suppress_vmdesc = true;
2449 }
2450
2451 static void spapr_machine_2_2_class_options(MachineClass *mc)
2452 {
2453 spapr_machine_2_3_class_options(mc);
2454 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_2);
2455 }
2456 DEFINE_SPAPR_MACHINE(2_2, "2.2", false);
2457
2458 /*
2459 * pseries-2.1
2460 */
2461 #define SPAPR_COMPAT_2_1 \
2462 SPAPR_COMPAT_2_2 \
2463 HW_COMPAT_2_1
2464
2465 static void spapr_machine_2_1_instance_options(MachineState *machine)
2466 {
2467 spapr_machine_2_2_instance_options(machine);
2468 }
2469
2470 static void spapr_machine_2_1_class_options(MachineClass *mc)
2471 {
2472 spapr_machine_2_2_class_options(mc);
2473 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_1);
2474 }
2475 DEFINE_SPAPR_MACHINE(2_1, "2.1", false);
2476
2477 static void spapr_machine_register_types(void)
2478 {
2479 type_register_static(&spapr_machine_info);
2480 }
2481
2482 type_init(spapr_machine_register_types)
AR7 emulation for QEMU