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 "sysemu/sysemu.h"
31 #include "sysemu/blockdev.h"
32 #include "sysemu/cpus.h"
33 #include "sysemu/kvm.h"
36 #include "hw/boards.h"
38 #include "hw/loader.h"
41 #include "hw/spapr_vio.h"
42 #include "hw/spapr_pci.h"
44 #include "hw/pci/msi.h"
46 #include "sysemu/kvm.h"
50 #include "exec/address-spaces.h"
52 #include "qemu/config-file.h"
56 /* SLOF memory layout:
58 * SLOF raw image loaded at 0, copies its romfs right below the flat
59 * device-tree, then position SLOF itself 31M below that
61 * So we set FW_OVERHEAD to 40MB which should account for all of that
64 * We load our kernel at 4M, leaving space for SLOF initial image
66 #define FDT_MAX_SIZE 0x10000
67 #define RTAS_MAX_SIZE 0x10000
68 #define FW_MAX_SIZE 0x400000
69 #define FW_FILE_NAME "slof.bin"
70 #define FW_OVERHEAD 0x2800000
71 #define KERNEL_LOAD_ADDR FW_MAX_SIZE
73 #define MIN_RMA_SLOF 128UL
75 #define TIMEBASE_FREQ 512000000ULL
78 #define XICS_IRQS 1024
80 #define SPAPR_PCI_BUID 0x800000020000001ULL
81 #define SPAPR_PCI_MEM_WIN_ADDR (0x10000000000ULL + 0xA0000000)
82 #define SPAPR_PCI_MEM_WIN_SIZE 0x20000000
83 #define SPAPR_PCI_IO_WIN_ADDR (0x10000000000ULL + 0x80000000)
84 #define SPAPR_PCI_MSI_WIN_ADDR (0x10000000000ULL + 0x90000000)
86 #define PHANDLE_XICP 0x00001111
88 #define HTAB_SIZE(spapr) (1ULL << ((spapr)->htab_shift))
90 sPAPREnvironment
*spapr
;
92 int spapr_allocate_irq(int hint
, bool lsi
)
98 /* FIXME: we should probably check for collisions somehow */
100 irq
= spapr
->next_irq
++;
103 /* Configure irq type */
104 if (!xics_get_qirq(spapr
->icp
, irq
)) {
108 xics_set_irq_type(spapr
->icp
, irq
, lsi
);
113 /* Allocate block of consequtive IRQs, returns a number of the first */
114 int spapr_allocate_irq_block(int num
, bool lsi
)
119 for (i
= 0; i
< num
; ++i
) {
122 irq
= spapr_allocate_irq(0, lsi
);
131 /* If the above doesn't create a consecutive block then that's
133 assert(irq
== (first
+ i
));
139 static int spapr_fixup_cpu_dt(void *fdt
, sPAPREnvironment
*spapr
)
144 int smt
= kvmppc_smt_threads();
145 uint32_t pft_size_prop
[] = {0, cpu_to_be32(spapr
->htab_shift
)};
147 assert(spapr
->cpu_model
);
149 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
150 uint32_t associativity
[] = {cpu_to_be32(0x5),
154 cpu_to_be32(env
->numa_node
),
155 cpu_to_be32(env
->cpu_index
)};
157 if ((env
->cpu_index
% smt
) != 0) {
161 snprintf(cpu_model
, 32, "/cpus/%s@%x", spapr
->cpu_model
,
164 offset
= fdt_path_offset(fdt
, cpu_model
);
169 if (nb_numa_nodes
> 1) {
170 ret
= fdt_setprop(fdt
, offset
, "ibm,associativity", associativity
,
171 sizeof(associativity
));
177 ret
= fdt_setprop(fdt
, offset
, "ibm,pft-size",
178 pft_size_prop
, sizeof(pft_size_prop
));
187 static size_t create_page_sizes_prop(CPUPPCState
*env
, uint32_t *prop
,
190 size_t maxcells
= maxsize
/ sizeof(uint32_t);
194 for (i
= 0; i
< PPC_PAGE_SIZES_MAX_SZ
; i
++) {
195 struct ppc_one_seg_page_size
*sps
= &env
->sps
.sps
[i
];
197 if (!sps
->page_shift
) {
200 for (count
= 0; count
< PPC_PAGE_SIZES_MAX_SZ
; count
++) {
201 if (sps
->enc
[count
].page_shift
== 0) {
205 if ((p
- prop
) >= (maxcells
- 3 - count
* 2)) {
208 *(p
++) = cpu_to_be32(sps
->page_shift
);
209 *(p
++) = cpu_to_be32(sps
->slb_enc
);
210 *(p
++) = cpu_to_be32(count
);
211 for (j
= 0; j
< count
; j
++) {
212 *(p
++) = cpu_to_be32(sps
->enc
[j
].page_shift
);
213 *(p
++) = cpu_to_be32(sps
->enc
[j
].pte_enc
);
217 return (p
- prop
) * sizeof(uint32_t);
224 fprintf(stderr, "qemu: error creating device tree: %s: %s\n", \
225 #exp, fdt_strerror(ret)); \
231 static void *spapr_create_fdt_skel(const char *cpu_model
,
235 const char *boot_device
,
236 const char *kernel_cmdline
,
241 uint32_t start_prop
= cpu_to_be32(initrd_base
);
242 uint32_t end_prop
= cpu_to_be32(initrd_base
+ initrd_size
);
243 char hypertas_prop
[] = "hcall-pft\0hcall-term\0hcall-dabr\0hcall-interrupt"
244 "\0hcall-tce\0hcall-vio\0hcall-splpar\0hcall-bulk";
245 char qemu_hypertas_prop
[] = "hcall-memop1";
246 uint32_t refpoints
[] = {cpu_to_be32(0x4), cpu_to_be32(0x4)};
247 uint32_t interrupt_server_ranges_prop
[] = {0, cpu_to_be32(smp_cpus
)};
249 int i
, smt
= kvmppc_smt_threads();
250 unsigned char vec5
[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x80};
252 fdt
= g_malloc0(FDT_MAX_SIZE
);
253 _FDT((fdt_create(fdt
, FDT_MAX_SIZE
)));
256 _FDT((fdt_add_reservemap_entry(fdt
, KERNEL_LOAD_ADDR
, kernel_size
)));
259 _FDT((fdt_add_reservemap_entry(fdt
, initrd_base
, initrd_size
)));
261 _FDT((fdt_finish_reservemap(fdt
)));
264 _FDT((fdt_begin_node(fdt
, "")));
265 _FDT((fdt_property_string(fdt
, "device_type", "chrp")));
266 _FDT((fdt_property_string(fdt
, "model", "IBM pSeries (emulated by qemu)")));
268 _FDT((fdt_property_cell(fdt
, "#address-cells", 0x2)));
269 _FDT((fdt_property_cell(fdt
, "#size-cells", 0x2)));
272 _FDT((fdt_begin_node(fdt
, "chosen")));
274 /* Set Form1_affinity */
275 _FDT((fdt_property(fdt
, "ibm,architecture-vec-5", vec5
, sizeof(vec5
))));
277 _FDT((fdt_property_string(fdt
, "bootargs", kernel_cmdline
)));
278 _FDT((fdt_property(fdt
, "linux,initrd-start",
279 &start_prop
, sizeof(start_prop
))));
280 _FDT((fdt_property(fdt
, "linux,initrd-end",
281 &end_prop
, sizeof(end_prop
))));
283 uint64_t kprop
[2] = { cpu_to_be64(KERNEL_LOAD_ADDR
),
284 cpu_to_be64(kernel_size
) };
286 _FDT((fdt_property(fdt
, "qemu,boot-kernel", &kprop
, sizeof(kprop
))));
288 _FDT((fdt_property_string(fdt
, "qemu,boot-device", boot_device
)));
289 _FDT((fdt_property_cell(fdt
, "qemu,graphic-width", graphic_width
)));
290 _FDT((fdt_property_cell(fdt
, "qemu,graphic-height", graphic_height
)));
291 _FDT((fdt_property_cell(fdt
, "qemu,graphic-depth", graphic_depth
)));
293 _FDT((fdt_end_node(fdt
)));
296 _FDT((fdt_begin_node(fdt
, "cpus")));
298 _FDT((fdt_property_cell(fdt
, "#address-cells", 0x1)));
299 _FDT((fdt_property_cell(fdt
, "#size-cells", 0x0)));
301 modelname
= g_strdup(cpu_model
);
303 for (i
= 0; i
< strlen(modelname
); i
++) {
304 modelname
[i
] = toupper(modelname
[i
]);
307 /* This is needed during FDT finalization */
308 spapr
->cpu_model
= g_strdup(modelname
);
310 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
311 int index
= env
->cpu_index
;
312 uint32_t servers_prop
[smp_threads
];
313 uint32_t gservers_prop
[smp_threads
* 2];
315 uint32_t segs
[] = {cpu_to_be32(28), cpu_to_be32(40),
316 0xffffffff, 0xffffffff};
317 uint32_t tbfreq
= kvm_enabled() ? kvmppc_get_tbfreq() : TIMEBASE_FREQ
;
318 uint32_t cpufreq
= kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;
319 uint32_t page_sizes_prop
[64];
320 size_t page_sizes_prop_size
;
322 if ((index
% smt
) != 0) {
326 if (asprintf(&nodename
, "%s@%x", modelname
, index
) < 0) {
327 fprintf(stderr
, "Allocation failure\n");
331 _FDT((fdt_begin_node(fdt
, nodename
)));
335 _FDT((fdt_property_cell(fdt
, "reg", index
)));
336 _FDT((fdt_property_string(fdt
, "device_type", "cpu")));
338 _FDT((fdt_property_cell(fdt
, "cpu-version", env
->spr
[SPR_PVR
])));
339 _FDT((fdt_property_cell(fdt
, "dcache-block-size",
340 env
->dcache_line_size
)));
341 _FDT((fdt_property_cell(fdt
, "icache-block-size",
342 env
->icache_line_size
)));
343 _FDT((fdt_property_cell(fdt
, "timebase-frequency", tbfreq
)));
344 _FDT((fdt_property_cell(fdt
, "clock-frequency", cpufreq
)));
345 _FDT((fdt_property_cell(fdt
, "ibm,slb-size", env
->slb_nr
)));
346 _FDT((fdt_property_string(fdt
, "status", "okay")));
347 _FDT((fdt_property(fdt
, "64-bit", NULL
, 0)));
349 /* Build interrupt servers and gservers properties */
350 for (i
= 0; i
< smp_threads
; i
++) {
351 servers_prop
[i
] = cpu_to_be32(index
+ i
);
352 /* Hack, direct the group queues back to cpu 0 */
353 gservers_prop
[i
*2] = cpu_to_be32(index
+ i
);
354 gservers_prop
[i
*2 + 1] = 0;
356 _FDT((fdt_property(fdt
, "ibm,ppc-interrupt-server#s",
357 servers_prop
, sizeof(servers_prop
))));
358 _FDT((fdt_property(fdt
, "ibm,ppc-interrupt-gserver#s",
359 gservers_prop
, sizeof(gservers_prop
))));
361 if (env
->mmu_model
& POWERPC_MMU_1TSEG
) {
362 _FDT((fdt_property(fdt
, "ibm,processor-segment-sizes",
363 segs
, sizeof(segs
))));
366 /* Advertise VMX/VSX (vector extensions) if available
367 * 0 / no property == no vector extensions
368 * 1 == VMX / Altivec available
369 * 2 == VSX available */
370 if (env
->insns_flags
& PPC_ALTIVEC
) {
371 uint32_t vmx
= (env
->insns_flags2
& PPC2_VSX
) ? 2 : 1;
373 _FDT((fdt_property_cell(fdt
, "ibm,vmx", vmx
)));
376 /* Advertise DFP (Decimal Floating Point) if available
377 * 0 / no property == no DFP
378 * 1 == DFP available */
379 if (env
->insns_flags2
& PPC2_DFP
) {
380 _FDT((fdt_property_cell(fdt
, "ibm,dfp", 1)));
383 page_sizes_prop_size
= create_page_sizes_prop(env
, page_sizes_prop
,
384 sizeof(page_sizes_prop
));
385 if (page_sizes_prop_size
) {
386 _FDT((fdt_property(fdt
, "ibm,segment-page-sizes",
387 page_sizes_prop
, page_sizes_prop_size
)));
390 _FDT((fdt_end_node(fdt
)));
395 _FDT((fdt_end_node(fdt
)));
398 _FDT((fdt_begin_node(fdt
, "rtas")));
400 _FDT((fdt_property(fdt
, "ibm,hypertas-functions", hypertas_prop
,
401 sizeof(hypertas_prop
))));
402 _FDT((fdt_property(fdt
, "qemu,hypertas-functions", qemu_hypertas_prop
,
403 sizeof(qemu_hypertas_prop
))));
405 _FDT((fdt_property(fdt
, "ibm,associativity-reference-points",
406 refpoints
, sizeof(refpoints
))));
408 _FDT((fdt_property_cell(fdt
, "rtas-error-log-max", RTAS_ERROR_LOG_MAX
)));
410 _FDT((fdt_end_node(fdt
)));
412 /* interrupt controller */
413 _FDT((fdt_begin_node(fdt
, "interrupt-controller")));
415 _FDT((fdt_property_string(fdt
, "device_type",
416 "PowerPC-External-Interrupt-Presentation")));
417 _FDT((fdt_property_string(fdt
, "compatible", "IBM,ppc-xicp")));
418 _FDT((fdt_property(fdt
, "interrupt-controller", NULL
, 0)));
419 _FDT((fdt_property(fdt
, "ibm,interrupt-server-ranges",
420 interrupt_server_ranges_prop
,
421 sizeof(interrupt_server_ranges_prop
))));
422 _FDT((fdt_property_cell(fdt
, "#interrupt-cells", 2)));
423 _FDT((fdt_property_cell(fdt
, "linux,phandle", PHANDLE_XICP
)));
424 _FDT((fdt_property_cell(fdt
, "phandle", PHANDLE_XICP
)));
426 _FDT((fdt_end_node(fdt
)));
429 _FDT((fdt_begin_node(fdt
, "vdevice")));
431 _FDT((fdt_property_string(fdt
, "device_type", "vdevice")));
432 _FDT((fdt_property_string(fdt
, "compatible", "IBM,vdevice")));
433 _FDT((fdt_property_cell(fdt
, "#address-cells", 0x1)));
434 _FDT((fdt_property_cell(fdt
, "#size-cells", 0x0)));
435 _FDT((fdt_property_cell(fdt
, "#interrupt-cells", 0x2)));
436 _FDT((fdt_property(fdt
, "interrupt-controller", NULL
, 0)));
438 _FDT((fdt_end_node(fdt
)));
441 spapr_events_fdt_skel(fdt
, epow_irq
);
443 _FDT((fdt_end_node(fdt
))); /* close root node */
444 _FDT((fdt_finish(fdt
)));
449 static int spapr_populate_memory(sPAPREnvironment
*spapr
, void *fdt
)
451 uint32_t associativity
[] = {cpu_to_be32(0x4), cpu_to_be32(0x0),
452 cpu_to_be32(0x0), cpu_to_be32(0x0),
455 hwaddr node0_size
, mem_start
;
456 uint64_t mem_reg_property
[2];
460 node0_size
= (nb_numa_nodes
> 1) ? node_mem
[0] : ram_size
;
461 if (spapr
->rma_size
> node0_size
) {
462 spapr
->rma_size
= node0_size
;
466 mem_reg_property
[0] = 0;
467 mem_reg_property
[1] = cpu_to_be64(spapr
->rma_size
);
468 off
= fdt_add_subnode(fdt
, 0, "memory@0");
470 _FDT((fdt_setprop_string(fdt
, off
, "device_type", "memory")));
471 _FDT((fdt_setprop(fdt
, off
, "reg", mem_reg_property
,
472 sizeof(mem_reg_property
))));
473 _FDT((fdt_setprop(fdt
, off
, "ibm,associativity", associativity
,
474 sizeof(associativity
))));
477 if (node0_size
> spapr
->rma_size
) {
478 mem_reg_property
[0] = cpu_to_be64(spapr
->rma_size
);
479 mem_reg_property
[1] = cpu_to_be64(node0_size
- spapr
->rma_size
);
481 sprintf(mem_name
, "memory@" TARGET_FMT_lx
, spapr
->rma_size
);
482 off
= fdt_add_subnode(fdt
, 0, mem_name
);
484 _FDT((fdt_setprop_string(fdt
, off
, "device_type", "memory")));
485 _FDT((fdt_setprop(fdt
, off
, "reg", mem_reg_property
,
486 sizeof(mem_reg_property
))));
487 _FDT((fdt_setprop(fdt
, off
, "ibm,associativity", associativity
,
488 sizeof(associativity
))));
491 /* RAM: Node 1 and beyond */
492 mem_start
= node0_size
;
493 for (i
= 1; i
< nb_numa_nodes
; i
++) {
494 mem_reg_property
[0] = cpu_to_be64(mem_start
);
495 mem_reg_property
[1] = cpu_to_be64(node_mem
[i
]);
496 associativity
[3] = associativity
[4] = cpu_to_be32(i
);
497 sprintf(mem_name
, "memory@" TARGET_FMT_lx
, mem_start
);
498 off
= fdt_add_subnode(fdt
, 0, mem_name
);
500 _FDT((fdt_setprop_string(fdt
, off
, "device_type", "memory")));
501 _FDT((fdt_setprop(fdt
, off
, "reg", mem_reg_property
,
502 sizeof(mem_reg_property
))));
503 _FDT((fdt_setprop(fdt
, off
, "ibm,associativity", associativity
,
504 sizeof(associativity
))));
505 mem_start
+= node_mem
[i
];
511 static void spapr_finalize_fdt(sPAPREnvironment
*spapr
,
520 fdt
= g_malloc(FDT_MAX_SIZE
);
522 /* open out the base tree into a temp buffer for the final tweaks */
523 _FDT((fdt_open_into(spapr
->fdt_skel
, fdt
, FDT_MAX_SIZE
)));
525 ret
= spapr_populate_memory(spapr
, fdt
);
527 fprintf(stderr
, "couldn't setup memory nodes in fdt\n");
531 ret
= spapr_populate_vdevice(spapr
->vio_bus
, fdt
);
533 fprintf(stderr
, "couldn't setup vio devices in fdt\n");
537 QLIST_FOREACH(phb
, &spapr
->phbs
, list
) {
538 ret
= spapr_populate_pci_dt(phb
, PHANDLE_XICP
, fdt
);
542 fprintf(stderr
, "couldn't setup PCI devices in fdt\n");
547 ret
= spapr_rtas_device_tree_setup(fdt
, rtas_addr
, rtas_size
);
549 fprintf(stderr
, "Couldn't set up RTAS device tree properties\n");
552 /* Advertise NUMA via ibm,associativity */
553 ret
= spapr_fixup_cpu_dt(fdt
, spapr
);
555 fprintf(stderr
, "Couldn't finalize CPU device tree properties\n");
558 if (!spapr
->has_graphics
) {
559 spapr_populate_chosen_stdout(fdt
, spapr
->vio_bus
);
562 _FDT((fdt_pack(fdt
)));
564 if (fdt_totalsize(fdt
) > FDT_MAX_SIZE
) {
565 hw_error("FDT too big ! 0x%x bytes (max is 0x%x)\n",
566 fdt_totalsize(fdt
), FDT_MAX_SIZE
);
570 cpu_physical_memory_write(fdt_addr
, fdt
, fdt_totalsize(fdt
));
575 static uint64_t translate_kernel_address(void *opaque
, uint64_t addr
)
577 return (addr
& 0x0fffffff) + KERNEL_LOAD_ADDR
;
580 static void emulate_spapr_hypercall(PowerPCCPU
*cpu
)
582 CPUPPCState
*env
= &cpu
->env
;
585 hcall_dprintf("Hypercall made with MSR[PR]=1\n");
586 env
->gpr
[3] = H_PRIVILEGE
;
588 env
->gpr
[3] = spapr_hypercall(cpu
, env
->gpr
[3], &env
->gpr
[4]);
592 static void spapr_reset_htab(sPAPREnvironment
*spapr
)
596 /* allocate hash page table. For now we always make this 16mb,
597 * later we should probably make it scale to the size of guest
600 shift
= kvmppc_reset_htab(spapr
->htab_shift
);
603 /* Kernel handles htab, we don't need to allocate one */
604 spapr
->htab_shift
= shift
;
607 /* Allocate an htab if we don't yet have one */
608 spapr
->htab
= qemu_memalign(HTAB_SIZE(spapr
), HTAB_SIZE(spapr
));
612 memset(spapr
->htab
, 0, HTAB_SIZE(spapr
));
615 /* Update the RMA size if necessary */
616 if (spapr
->vrma_adjust
) {
617 spapr
->rma_size
= kvmppc_rma_size(ram_size
, spapr
->htab_shift
);
621 static void ppc_spapr_reset(void)
623 /* Reset the hash table & recalc the RMA */
624 spapr_reset_htab(spapr
);
626 qemu_devices_reset();
629 spapr_finalize_fdt(spapr
, spapr
->fdt_addr
, spapr
->rtas_addr
,
632 /* Set up the entry state */
633 first_cpu
->gpr
[3] = spapr
->fdt_addr
;
634 first_cpu
->gpr
[5] = 0;
635 first_cpu
->halted
= 0;
636 first_cpu
->nip
= spapr
->entry_point
;
640 static void spapr_cpu_reset(void *opaque
)
642 PowerPCCPU
*cpu
= opaque
;
643 CPUPPCState
*env
= &cpu
->env
;
647 /* All CPUs start halted. CPU0 is unhalted from the machine level
648 * reset code and the rest are explicitly started up by the guest
649 * using an RTAS call */
652 env
->spr
[SPR_HIOR
] = 0;
654 env
->external_htab
= spapr
->htab
;
656 env
->htab_mask
= HTAB_SIZE(spapr
) - 1;
657 env
->spr
[SPR_SDR1
] = (unsigned long)spapr
->htab
|
658 (spapr
->htab_shift
- 18);
661 static void spapr_create_nvram(sPAPREnvironment
*spapr
)
663 QemuOpts
*machine_opts
;
666 dev
= qdev_create(&spapr
->vio_bus
->bus
, "spapr-nvram");
668 machine_opts
= qemu_opts_find(qemu_find_opts("machine"), 0);
670 const char *drivename
;
672 drivename
= qemu_opt_get(machine_opts
, "nvram");
674 BlockDriverState
*bs
;
676 bs
= bdrv_find(drivename
);
678 fprintf(stderr
, "No such block device \"%s\" for nvram\n",
682 qdev_prop_set_drive_nofail(dev
, "drive", bs
);
686 qdev_init_nofail(dev
);
688 spapr
->nvram
= (struct sPAPRNVRAM
*)dev
;
691 /* Returns whether we want to use VGA or not */
692 static int spapr_vga_init(PCIBus
*pci_bus
)
694 switch (vga_interface_type
) {
697 return pci_vga_init(pci_bus
) != NULL
;
699 fprintf(stderr
, "This vga model is not supported,"
700 "currently it only supports -vga std\n");
706 /* pSeries LPAR / sPAPR hardware init */
707 static void ppc_spapr_init(QEMUMachineInitArgs
*args
)
709 ram_addr_t ram_size
= args
->ram_size
;
710 const char *cpu_model
= args
->cpu_model
;
711 const char *kernel_filename
= args
->kernel_filename
;
712 const char *kernel_cmdline
= args
->kernel_cmdline
;
713 const char *initrd_filename
= args
->initrd_filename
;
714 const char *boot_device
= args
->boot_device
;
719 MemoryRegion
*sysmem
= get_system_memory();
720 MemoryRegion
*ram
= g_new(MemoryRegion
, 1);
721 hwaddr rma_alloc_size
;
722 uint32_t initrd_base
= 0;
723 long kernel_size
= 0, initrd_size
= 0;
724 long load_limit
, rtas_limit
, fw_size
;
727 msi_supported
= true;
729 spapr
= g_malloc0(sizeof(*spapr
));
730 QLIST_INIT(&spapr
->phbs
);
732 cpu_ppc_hypercall
= emulate_spapr_hypercall
;
734 /* Allocate RMA if necessary */
735 rma_alloc_size
= kvmppc_alloc_rma("ppc_spapr.rma", sysmem
);
737 if (rma_alloc_size
== -1) {
738 hw_error("qemu: Unable to create RMA\n");
742 if (rma_alloc_size
&& (rma_alloc_size
< ram_size
)) {
743 spapr
->rma_size
= rma_alloc_size
;
745 spapr
->rma_size
= ram_size
;
747 /* With KVM, we don't actually know whether KVM supports an
748 * unbounded RMA (PR KVM) or is limited by the hash table size
749 * (HV KVM using VRMA), so we always assume the latter
751 * In that case, we also limit the initial allocations for RTAS
752 * etc... to 256M since we have no way to know what the VRMA size
753 * is going to be as it depends on the size of the hash table
754 * isn't determined yet.
757 spapr
->vrma_adjust
= 1;
758 spapr
->rma_size
= MIN(spapr
->rma_size
, 0x10000000);
762 /* We place the device tree and RTAS just below either the top of the RMA,
763 * or just below 2GB, whichever is lowere, so that it can be
764 * processed with 32-bit real mode code if necessary */
765 rtas_limit
= MIN(spapr
->rma_size
, 0x80000000);
766 spapr
->rtas_addr
= rtas_limit
- RTAS_MAX_SIZE
;
767 spapr
->fdt_addr
= spapr
->rtas_addr
- FDT_MAX_SIZE
;
768 load_limit
= spapr
->fdt_addr
- FW_OVERHEAD
;
770 /* We aim for a hash table of size 1/128 the size of RAM. The
771 * normal rule of thumb is 1/64 the size of RAM, but that's much
772 * more than needed for the Linux guests we support. */
773 spapr
->htab_shift
= 18; /* Minimum architected size */
774 while (spapr
->htab_shift
<= 46) {
775 if ((1ULL << (spapr
->htab_shift
+ 7)) >= ram_size
) {
782 if (cpu_model
== NULL
) {
783 cpu_model
= kvm_enabled() ? "host" : "POWER7";
785 for (i
= 0; i
< smp_cpus
; i
++) {
786 cpu
= cpu_ppc_init(cpu_model
);
788 fprintf(stderr
, "Unable to find PowerPC CPU definition\n");
793 /* Set time-base frequency to 512 MHz */
794 cpu_ppc_tb_init(env
, TIMEBASE_FREQ
);
796 /* PAPR always has exception vectors in RAM not ROM */
797 env
->hreset_excp_prefix
= 0;
799 /* Tell KVM that we're in PAPR mode */
801 kvmppc_set_papr(cpu
);
804 qemu_register_reset(spapr_cpu_reset
, cpu
);
808 spapr
->ram_limit
= ram_size
;
809 if (spapr
->ram_limit
> rma_alloc_size
) {
810 ram_addr_t nonrma_base
= rma_alloc_size
;
811 ram_addr_t nonrma_size
= spapr
->ram_limit
- rma_alloc_size
;
813 memory_region_init_ram(ram
, "ppc_spapr.ram", nonrma_size
);
814 vmstate_register_ram_global(ram
);
815 memory_region_add_subregion(sysmem
, nonrma_base
, ram
);
818 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, "spapr-rtas.bin");
819 spapr
->rtas_size
= load_image_targphys(filename
, spapr
->rtas_addr
,
820 rtas_limit
- spapr
->rtas_addr
);
821 if (spapr
->rtas_size
< 0) {
822 hw_error("qemu: could not load LPAR rtas '%s'\n", filename
);
825 if (spapr
->rtas_size
> RTAS_MAX_SIZE
) {
826 hw_error("RTAS too big ! 0x%lx bytes (max is 0x%x)\n",
827 spapr
->rtas_size
, RTAS_MAX_SIZE
);
833 /* Set up Interrupt Controller */
834 spapr
->icp
= xics_system_init(XICS_IRQS
);
835 spapr
->next_irq
= XICS_IRQ_BASE
;
837 /* Set up EPOW events infrastructure */
838 spapr_events_init(spapr
);
844 spapr
->vio_bus
= spapr_vio_bus_init();
846 for (i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
848 spapr_vty_create(spapr
->vio_bus
, serial_hds
[i
]);
852 /* We always have at least the nvram device on VIO */
853 spapr_create_nvram(spapr
);
856 spapr_pci_rtas_init();
858 spapr_create_phb(spapr
, "pci", SPAPR_PCI_BUID
,
859 SPAPR_PCI_MEM_WIN_ADDR
,
860 SPAPR_PCI_MEM_WIN_SIZE
,
861 SPAPR_PCI_IO_WIN_ADDR
,
862 SPAPR_PCI_MSI_WIN_ADDR
);
863 phb
= PCI_HOST_BRIDGE(QLIST_FIRST(&spapr
->phbs
));
865 for (i
= 0; i
< nb_nics
; i
++) {
866 NICInfo
*nd
= &nd_table
[i
];
869 nd
->model
= g_strdup("ibmveth");
872 if (strcmp(nd
->model
, "ibmveth") == 0) {
873 spapr_vlan_create(spapr
->vio_bus
, nd
);
875 pci_nic_init_nofail(&nd_table
[i
], nd
->model
, NULL
);
879 for (i
= 0; i
<= drive_get_max_bus(IF_SCSI
); i
++) {
880 spapr_vscsi_create(spapr
->vio_bus
);
884 if (spapr_vga_init(phb
->bus
)) {
885 spapr
->has_graphics
= true;
888 if (usb_enabled(spapr
->has_graphics
)) {
889 pci_create_simple(phb
->bus
, -1, "pci-ohci");
890 if (spapr
->has_graphics
) {
891 usbdevice_create("keyboard");
892 usbdevice_create("mouse");
896 if (spapr
->rma_size
< (MIN_RMA_SLOF
<< 20)) {
897 fprintf(stderr
, "qemu: pSeries SLOF firmware requires >= "
898 "%ldM guest RMA (Real Mode Area memory)\n", MIN_RMA_SLOF
);
902 if (kernel_filename
) {
903 uint64_t lowaddr
= 0;
905 kernel_size
= load_elf(kernel_filename
, translate_kernel_address
, NULL
,
906 NULL
, &lowaddr
, NULL
, 1, ELF_MACHINE
, 0);
907 if (kernel_size
< 0) {
908 kernel_size
= load_image_targphys(kernel_filename
,
910 load_limit
- KERNEL_LOAD_ADDR
);
912 if (kernel_size
< 0) {
913 fprintf(stderr
, "qemu: could not load kernel '%s'\n",
919 if (initrd_filename
) {
920 /* Try to locate the initrd in the gap between the kernel
921 * and the firmware. Add a bit of space just in case
923 initrd_base
= (KERNEL_LOAD_ADDR
+ kernel_size
+ 0x1ffff) & ~0xffff;
924 initrd_size
= load_image_targphys(initrd_filename
, initrd_base
,
925 load_limit
- initrd_base
);
926 if (initrd_size
< 0) {
927 fprintf(stderr
, "qemu: could not load initial ram disk '%s'\n",
937 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, FW_FILE_NAME
);
938 fw_size
= load_image_targphys(filename
, 0, FW_MAX_SIZE
);
940 hw_error("qemu: could not load LPAR rtas '%s'\n", filename
);
945 spapr
->entry_point
= 0x100;
947 /* Prepare the device tree */
948 spapr
->fdt_skel
= spapr_create_fdt_skel(cpu_model
,
949 initrd_base
, initrd_size
,
951 boot_device
, kernel_cmdline
,
953 assert(spapr
->fdt_skel
!= NULL
);
956 static QEMUMachine spapr_machine
= {
958 .desc
= "pSeries Logical Partition (PAPR compliant)",
959 .init
= ppc_spapr_init
,
960 .reset
= ppc_spapr_reset
,
961 .block_default_type
= IF_SCSI
,
962 .max_cpus
= MAX_CPUS
,
966 static void spapr_machine_init(void)
968 qemu_register_machine(&spapr_machine
);
971 machine_init(spapr_machine_init
);