* 'ppc-next' of git://repo.or.cz/qemu/agraf: PPC: Add description for the Freescale e500mc core. pseries: Check for duplicate addresses on the spapr-vio bus pseries: Populate "/chosen/linux,stdout-path" in the FDT pseries: Add a routine to find a stable "default" vty and use it pseries: Emit device tree nodes in reg order pseries: FDT NUMA extensions to support multi-node guests pseries: Remove hcalls callback kvm-ppc: halt secondary cpus when guest reset console: Fix segfault on screendump without VGA adapter PPC: monitor: add ability to dump SLB entries
707 lines
23 KiB
C
707 lines
23 KiB
C
/*
|
|
* QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
|
|
*
|
|
* Copyright (c) 2004-2007 Fabrice Bellard
|
|
* Copyright (c) 2007 Jocelyn Mayer
|
|
* Copyright (c) 2010 David Gibson, IBM Corporation.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
*/
|
|
#include "sysemu.h"
|
|
#include "hw.h"
|
|
#include "elf.h"
|
|
#include "net.h"
|
|
#include "blockdev.h"
|
|
#include "cpus.h"
|
|
#include "kvm.h"
|
|
#include "kvm_ppc.h"
|
|
|
|
#include "hw/boards.h"
|
|
#include "hw/ppc.h"
|
|
#include "hw/loader.h"
|
|
|
|
#include "hw/spapr.h"
|
|
#include "hw/spapr_vio.h"
|
|
#include "hw/spapr_pci.h"
|
|
#include "hw/xics.h"
|
|
|
|
#include "kvm.h"
|
|
#include "kvm_ppc.h"
|
|
#include "pci.h"
|
|
|
|
#include "exec-memory.h"
|
|
|
|
#include <libfdt.h>
|
|
|
|
#define KERNEL_LOAD_ADDR 0x00000000
|
|
#define INITRD_LOAD_ADDR 0x02800000
|
|
#define FDT_MAX_SIZE 0x10000
|
|
#define RTAS_MAX_SIZE 0x10000
|
|
#define FW_MAX_SIZE 0x400000
|
|
#define FW_FILE_NAME "slof.bin"
|
|
|
|
#define MIN_RMA_SLOF 128UL
|
|
|
|
#define TIMEBASE_FREQ 512000000ULL
|
|
|
|
#define MAX_CPUS 256
|
|
#define XICS_IRQS 1024
|
|
|
|
#define SPAPR_PCI_BUID 0x800000020000001ULL
|
|
#define SPAPR_PCI_MEM_WIN_ADDR (0x10000000000ULL + 0xA0000000)
|
|
#define SPAPR_PCI_MEM_WIN_SIZE 0x20000000
|
|
#define SPAPR_PCI_IO_WIN_ADDR (0x10000000000ULL + 0x80000000)
|
|
|
|
#define PHANDLE_XICP 0x00001111
|
|
|
|
sPAPREnvironment *spapr;
|
|
|
|
qemu_irq spapr_allocate_irq(uint32_t hint, uint32_t *irq_num)
|
|
{
|
|
uint32_t irq;
|
|
qemu_irq qirq;
|
|
|
|
if (hint) {
|
|
irq = hint;
|
|
/* FIXME: we should probably check for collisions somehow */
|
|
} else {
|
|
irq = spapr->next_irq++;
|
|
}
|
|
|
|
qirq = xics_find_qirq(spapr->icp, irq);
|
|
if (!qirq) {
|
|
return NULL;
|
|
}
|
|
|
|
if (irq_num) {
|
|
*irq_num = irq;
|
|
}
|
|
|
|
return qirq;
|
|
}
|
|
|
|
static int spapr_set_associativity(void *fdt, sPAPREnvironment *spapr)
|
|
{
|
|
int ret = 0, offset;
|
|
CPUState *env;
|
|
char cpu_model[32];
|
|
int smt = kvmppc_smt_threads();
|
|
|
|
assert(spapr->cpu_model);
|
|
|
|
for (env = first_cpu; env != NULL; env = env->next_cpu) {
|
|
uint32_t associativity[] = {cpu_to_be32(0x5),
|
|
cpu_to_be32(0x0),
|
|
cpu_to_be32(0x0),
|
|
cpu_to_be32(0x0),
|
|
cpu_to_be32(env->numa_node),
|
|
cpu_to_be32(env->cpu_index)};
|
|
|
|
if ((env->cpu_index % smt) != 0) {
|
|
continue;
|
|
}
|
|
|
|
snprintf(cpu_model, 32, "/cpus/%s@%x", spapr->cpu_model,
|
|
env->cpu_index);
|
|
|
|
offset = fdt_path_offset(fdt, cpu_model);
|
|
if (offset < 0) {
|
|
return offset;
|
|
}
|
|
|
|
ret = fdt_setprop(fdt, offset, "ibm,associativity", associativity,
|
|
sizeof(associativity));
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void *spapr_create_fdt_skel(const char *cpu_model,
|
|
target_phys_addr_t rma_size,
|
|
target_phys_addr_t initrd_base,
|
|
target_phys_addr_t initrd_size,
|
|
const char *boot_device,
|
|
const char *kernel_cmdline,
|
|
long hash_shift)
|
|
{
|
|
void *fdt;
|
|
CPUState *env;
|
|
uint64_t mem_reg_property[2];
|
|
uint32_t start_prop = cpu_to_be32(initrd_base);
|
|
uint32_t end_prop = cpu_to_be32(initrd_base + initrd_size);
|
|
uint32_t pft_size_prop[] = {0, cpu_to_be32(hash_shift)};
|
|
char hypertas_prop[] = "hcall-pft\0hcall-term\0hcall-dabr\0hcall-interrupt"
|
|
"\0hcall-tce\0hcall-vio\0hcall-splpar\0hcall-bulk";
|
|
uint32_t interrupt_server_ranges_prop[] = {0, cpu_to_be32(smp_cpus)};
|
|
int i;
|
|
char *modelname;
|
|
int smt = kvmppc_smt_threads();
|
|
unsigned char vec5[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x80};
|
|
uint32_t refpoints[] = {cpu_to_be32(0x4), cpu_to_be32(0x4)};
|
|
uint32_t associativity[] = {cpu_to_be32(0x4), cpu_to_be32(0x0),
|
|
cpu_to_be32(0x0), cpu_to_be32(0x0),
|
|
cpu_to_be32(0x0)};
|
|
char mem_name[32];
|
|
target_phys_addr_t node0_size, mem_start;
|
|
|
|
#define _FDT(exp) \
|
|
do { \
|
|
int ret = (exp); \
|
|
if (ret < 0) { \
|
|
fprintf(stderr, "qemu: error creating device tree: %s: %s\n", \
|
|
#exp, fdt_strerror(ret)); \
|
|
exit(1); \
|
|
} \
|
|
} while (0)
|
|
|
|
fdt = g_malloc0(FDT_MAX_SIZE);
|
|
_FDT((fdt_create(fdt, FDT_MAX_SIZE)));
|
|
|
|
_FDT((fdt_finish_reservemap(fdt)));
|
|
|
|
/* Root node */
|
|
_FDT((fdt_begin_node(fdt, "")));
|
|
_FDT((fdt_property_string(fdt, "device_type", "chrp")));
|
|
_FDT((fdt_property_string(fdt, "model", "IBM pSeries (emulated by qemu)")));
|
|
|
|
_FDT((fdt_property_cell(fdt, "#address-cells", 0x2)));
|
|
_FDT((fdt_property_cell(fdt, "#size-cells", 0x2)));
|
|
|
|
/* /chosen */
|
|
_FDT((fdt_begin_node(fdt, "chosen")));
|
|
|
|
/* Set Form1_affinity */
|
|
_FDT((fdt_property(fdt, "ibm,architecture-vec-5", vec5, sizeof(vec5))));
|
|
|
|
_FDT((fdt_property_string(fdt, "bootargs", kernel_cmdline)));
|
|
_FDT((fdt_property(fdt, "linux,initrd-start",
|
|
&start_prop, sizeof(start_prop))));
|
|
_FDT((fdt_property(fdt, "linux,initrd-end",
|
|
&end_prop, sizeof(end_prop))));
|
|
_FDT((fdt_property_string(fdt, "qemu,boot-device", boot_device)));
|
|
|
|
/*
|
|
* Because we don't always invoke any firmware, we can't rely on
|
|
* that to do BAR allocation. Long term, we should probably do
|
|
* that ourselves, but for now, this setting (plus advertising the
|
|
* current BARs as 0) causes sufficiently recent kernels to to the
|
|
* BAR assignment themselves */
|
|
_FDT((fdt_property_cell(fdt, "linux,pci-probe-only", 0)));
|
|
|
|
_FDT((fdt_end_node(fdt)));
|
|
|
|
/* memory node(s) */
|
|
node0_size = (nb_numa_nodes > 1) ? node_mem[0] : ram_size;
|
|
if (rma_size > node0_size) {
|
|
rma_size = node0_size;
|
|
}
|
|
|
|
/* RMA */
|
|
mem_reg_property[0] = 0;
|
|
mem_reg_property[1] = cpu_to_be64(rma_size);
|
|
_FDT((fdt_begin_node(fdt, "memory@0")));
|
|
_FDT((fdt_property_string(fdt, "device_type", "memory")));
|
|
_FDT((fdt_property(fdt, "reg", mem_reg_property,
|
|
sizeof(mem_reg_property))));
|
|
_FDT((fdt_property(fdt, "ibm,associativity", associativity,
|
|
sizeof(associativity))));
|
|
_FDT((fdt_end_node(fdt)));
|
|
|
|
/* RAM: Node 0 */
|
|
if (node0_size > rma_size) {
|
|
mem_reg_property[0] = cpu_to_be64(rma_size);
|
|
mem_reg_property[1] = cpu_to_be64(node0_size - rma_size);
|
|
|
|
sprintf(mem_name, "memory@" TARGET_FMT_lx, rma_size);
|
|
_FDT((fdt_begin_node(fdt, mem_name)));
|
|
_FDT((fdt_property_string(fdt, "device_type", "memory")));
|
|
_FDT((fdt_property(fdt, "reg", mem_reg_property,
|
|
sizeof(mem_reg_property))));
|
|
_FDT((fdt_property(fdt, "ibm,associativity", associativity,
|
|
sizeof(associativity))));
|
|
_FDT((fdt_end_node(fdt)));
|
|
}
|
|
|
|
/* RAM: Node 1 and beyond */
|
|
mem_start = node0_size;
|
|
for (i = 1; i < nb_numa_nodes; i++) {
|
|
mem_reg_property[0] = cpu_to_be64(mem_start);
|
|
mem_reg_property[1] = cpu_to_be64(node_mem[i]);
|
|
associativity[3] = associativity[4] = cpu_to_be32(i);
|
|
sprintf(mem_name, "memory@" TARGET_FMT_lx, mem_start);
|
|
_FDT((fdt_begin_node(fdt, mem_name)));
|
|
_FDT((fdt_property_string(fdt, "device_type", "memory")));
|
|
_FDT((fdt_property(fdt, "reg", mem_reg_property,
|
|
sizeof(mem_reg_property))));
|
|
_FDT((fdt_property(fdt, "ibm,associativity", associativity,
|
|
sizeof(associativity))));
|
|
_FDT((fdt_end_node(fdt)));
|
|
mem_start += node_mem[i];
|
|
}
|
|
|
|
/* cpus */
|
|
_FDT((fdt_begin_node(fdt, "cpus")));
|
|
|
|
_FDT((fdt_property_cell(fdt, "#address-cells", 0x1)));
|
|
_FDT((fdt_property_cell(fdt, "#size-cells", 0x0)));
|
|
|
|
modelname = g_strdup(cpu_model);
|
|
|
|
for (i = 0; i < strlen(modelname); i++) {
|
|
modelname[i] = toupper(modelname[i]);
|
|
}
|
|
|
|
/* This is needed during FDT finalization */
|
|
spapr->cpu_model = g_strdup(modelname);
|
|
|
|
for (env = first_cpu; env != NULL; env = env->next_cpu) {
|
|
int index = env->cpu_index;
|
|
uint32_t servers_prop[smp_threads];
|
|
uint32_t gservers_prop[smp_threads * 2];
|
|
char *nodename;
|
|
uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40),
|
|
0xffffffff, 0xffffffff};
|
|
uint32_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TIMEBASE_FREQ;
|
|
uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;
|
|
|
|
if ((index % smt) != 0) {
|
|
continue;
|
|
}
|
|
|
|
if (asprintf(&nodename, "%s@%x", modelname, index) < 0) {
|
|
fprintf(stderr, "Allocation failure\n");
|
|
exit(1);
|
|
}
|
|
|
|
_FDT((fdt_begin_node(fdt, nodename)));
|
|
|
|
free(nodename);
|
|
|
|
_FDT((fdt_property_cell(fdt, "reg", index)));
|
|
_FDT((fdt_property_string(fdt, "device_type", "cpu")));
|
|
|
|
_FDT((fdt_property_cell(fdt, "cpu-version", env->spr[SPR_PVR])));
|
|
_FDT((fdt_property_cell(fdt, "dcache-block-size",
|
|
env->dcache_line_size)));
|
|
_FDT((fdt_property_cell(fdt, "icache-block-size",
|
|
env->icache_line_size)));
|
|
_FDT((fdt_property_cell(fdt, "timebase-frequency", tbfreq)));
|
|
_FDT((fdt_property_cell(fdt, "clock-frequency", cpufreq)));
|
|
_FDT((fdt_property_cell(fdt, "ibm,slb-size", env->slb_nr)));
|
|
_FDT((fdt_property(fdt, "ibm,pft-size",
|
|
pft_size_prop, sizeof(pft_size_prop))));
|
|
_FDT((fdt_property_string(fdt, "status", "okay")));
|
|
_FDT((fdt_property(fdt, "64-bit", NULL, 0)));
|
|
|
|
/* Build interrupt servers and gservers properties */
|
|
for (i = 0; i < smp_threads; i++) {
|
|
servers_prop[i] = cpu_to_be32(index + i);
|
|
/* Hack, direct the group queues back to cpu 0 */
|
|
gservers_prop[i*2] = cpu_to_be32(index + i);
|
|
gservers_prop[i*2 + 1] = 0;
|
|
}
|
|
_FDT((fdt_property(fdt, "ibm,ppc-interrupt-server#s",
|
|
servers_prop, sizeof(servers_prop))));
|
|
_FDT((fdt_property(fdt, "ibm,ppc-interrupt-gserver#s",
|
|
gservers_prop, sizeof(gservers_prop))));
|
|
|
|
if (env->mmu_model & POWERPC_MMU_1TSEG) {
|
|
_FDT((fdt_property(fdt, "ibm,processor-segment-sizes",
|
|
segs, sizeof(segs))));
|
|
}
|
|
|
|
/* Advertise VMX/VSX (vector extensions) if available
|
|
* 0 / no property == no vector extensions
|
|
* 1 == VMX / Altivec available
|
|
* 2 == VSX available */
|
|
if (env->insns_flags & PPC_ALTIVEC) {
|
|
uint32_t vmx = (env->insns_flags2 & PPC2_VSX) ? 2 : 1;
|
|
|
|
_FDT((fdt_property_cell(fdt, "ibm,vmx", vmx)));
|
|
}
|
|
|
|
/* Advertise DFP (Decimal Floating Point) if available
|
|
* 0 / no property == no DFP
|
|
* 1 == DFP available */
|
|
if (env->insns_flags2 & PPC2_DFP) {
|
|
_FDT((fdt_property_cell(fdt, "ibm,dfp", 1)));
|
|
}
|
|
|
|
_FDT((fdt_end_node(fdt)));
|
|
}
|
|
|
|
g_free(modelname);
|
|
|
|
_FDT((fdt_end_node(fdt)));
|
|
|
|
/* RTAS */
|
|
_FDT((fdt_begin_node(fdt, "rtas")));
|
|
|
|
_FDT((fdt_property(fdt, "ibm,hypertas-functions", hypertas_prop,
|
|
sizeof(hypertas_prop))));
|
|
|
|
_FDT((fdt_property(fdt, "ibm,associativity-reference-points",
|
|
refpoints, sizeof(refpoints))));
|
|
|
|
_FDT((fdt_end_node(fdt)));
|
|
|
|
/* interrupt controller */
|
|
_FDT((fdt_begin_node(fdt, "interrupt-controller")));
|
|
|
|
_FDT((fdt_property_string(fdt, "device_type",
|
|
"PowerPC-External-Interrupt-Presentation")));
|
|
_FDT((fdt_property_string(fdt, "compatible", "IBM,ppc-xicp")));
|
|
_FDT((fdt_property(fdt, "interrupt-controller", NULL, 0)));
|
|
_FDT((fdt_property(fdt, "ibm,interrupt-server-ranges",
|
|
interrupt_server_ranges_prop,
|
|
sizeof(interrupt_server_ranges_prop))));
|
|
_FDT((fdt_property_cell(fdt, "#interrupt-cells", 2)));
|
|
_FDT((fdt_property_cell(fdt, "linux,phandle", PHANDLE_XICP)));
|
|
_FDT((fdt_property_cell(fdt, "phandle", PHANDLE_XICP)));
|
|
|
|
_FDT((fdt_end_node(fdt)));
|
|
|
|
/* vdevice */
|
|
_FDT((fdt_begin_node(fdt, "vdevice")));
|
|
|
|
_FDT((fdt_property_string(fdt, "device_type", "vdevice")));
|
|
_FDT((fdt_property_string(fdt, "compatible", "IBM,vdevice")));
|
|
_FDT((fdt_property_cell(fdt, "#address-cells", 0x1)));
|
|
_FDT((fdt_property_cell(fdt, "#size-cells", 0x0)));
|
|
_FDT((fdt_property_cell(fdt, "#interrupt-cells", 0x2)));
|
|
_FDT((fdt_property(fdt, "interrupt-controller", NULL, 0)));
|
|
|
|
_FDT((fdt_end_node(fdt)));
|
|
|
|
_FDT((fdt_end_node(fdt))); /* close root node */
|
|
_FDT((fdt_finish(fdt)));
|
|
|
|
return fdt;
|
|
}
|
|
|
|
static void spapr_finalize_fdt(sPAPREnvironment *spapr,
|
|
target_phys_addr_t fdt_addr,
|
|
target_phys_addr_t rtas_addr,
|
|
target_phys_addr_t rtas_size)
|
|
{
|
|
int ret;
|
|
void *fdt;
|
|
sPAPRPHBState *phb;
|
|
|
|
fdt = g_malloc(FDT_MAX_SIZE);
|
|
|
|
/* open out the base tree into a temp buffer for the final tweaks */
|
|
_FDT((fdt_open_into(spapr->fdt_skel, fdt, FDT_MAX_SIZE)));
|
|
|
|
ret = spapr_populate_vdevice(spapr->vio_bus, fdt);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "couldn't setup vio devices in fdt\n");
|
|
exit(1);
|
|
}
|
|
|
|
QLIST_FOREACH(phb, &spapr->phbs, list) {
|
|
ret = spapr_populate_pci_devices(phb, PHANDLE_XICP, fdt);
|
|
}
|
|
|
|
if (ret < 0) {
|
|
fprintf(stderr, "couldn't setup PCI devices in fdt\n");
|
|
exit(1);
|
|
}
|
|
|
|
/* RTAS */
|
|
ret = spapr_rtas_device_tree_setup(fdt, rtas_addr, rtas_size);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "Couldn't set up RTAS device tree properties\n");
|
|
}
|
|
|
|
/* Advertise NUMA via ibm,associativity */
|
|
if (nb_numa_nodes > 1) {
|
|
ret = spapr_set_associativity(fdt, spapr);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "Couldn't set up NUMA device tree properties\n");
|
|
}
|
|
}
|
|
|
|
spapr_populate_chosen_stdout(fdt, spapr->vio_bus);
|
|
|
|
_FDT((fdt_pack(fdt)));
|
|
|
|
cpu_physical_memory_write(fdt_addr, fdt, fdt_totalsize(fdt));
|
|
|
|
g_free(fdt);
|
|
}
|
|
|
|
static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
|
|
{
|
|
return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
|
|
}
|
|
|
|
static void emulate_spapr_hypercall(CPUState *env)
|
|
{
|
|
env->gpr[3] = spapr_hypercall(env, env->gpr[3], &env->gpr[4]);
|
|
}
|
|
|
|
static void spapr_reset(void *opaque)
|
|
{
|
|
sPAPREnvironment *spapr = (sPAPREnvironment *)opaque;
|
|
|
|
fprintf(stderr, "sPAPR reset\n");
|
|
|
|
/* flush out the hash table */
|
|
memset(spapr->htab, 0, spapr->htab_size);
|
|
|
|
/* Load the fdt */
|
|
spapr_finalize_fdt(spapr, spapr->fdt_addr, spapr->rtas_addr,
|
|
spapr->rtas_size);
|
|
|
|
/* Set up the entry state */
|
|
first_cpu->gpr[3] = spapr->fdt_addr;
|
|
first_cpu->gpr[5] = 0;
|
|
first_cpu->halted = 0;
|
|
first_cpu->nip = spapr->entry_point;
|
|
|
|
}
|
|
|
|
/* pSeries LPAR / sPAPR hardware init */
|
|
static void ppc_spapr_init(ram_addr_t ram_size,
|
|
const char *boot_device,
|
|
const char *kernel_filename,
|
|
const char *kernel_cmdline,
|
|
const char *initrd_filename,
|
|
const char *cpu_model)
|
|
{
|
|
CPUState *env;
|
|
int i;
|
|
MemoryRegion *sysmem = get_system_memory();
|
|
MemoryRegion *ram = g_new(MemoryRegion, 1);
|
|
target_phys_addr_t rma_alloc_size, rma_size;
|
|
uint32_t initrd_base;
|
|
long kernel_size, initrd_size, fw_size;
|
|
long pteg_shift = 17;
|
|
char *filename;
|
|
|
|
spapr = g_malloc0(sizeof(*spapr));
|
|
QLIST_INIT(&spapr->phbs);
|
|
|
|
cpu_ppc_hypercall = emulate_spapr_hypercall;
|
|
|
|
/* Allocate RMA if necessary */
|
|
rma_alloc_size = kvmppc_alloc_rma("ppc_spapr.rma", sysmem);
|
|
|
|
if (rma_alloc_size == -1) {
|
|
hw_error("qemu: Unable to create RMA\n");
|
|
exit(1);
|
|
}
|
|
if (rma_alloc_size && (rma_alloc_size < ram_size)) {
|
|
rma_size = rma_alloc_size;
|
|
} else {
|
|
rma_size = ram_size;
|
|
}
|
|
|
|
/* We place the device tree just below either the top of the RMA,
|
|
* or just below 2GB, whichever is lowere, so that it can be
|
|
* processed with 32-bit real mode code if necessary */
|
|
spapr->fdt_addr = MIN(rma_size, 0x80000000) - FDT_MAX_SIZE;
|
|
spapr->rtas_addr = spapr->fdt_addr - RTAS_MAX_SIZE;
|
|
|
|
/* init CPUs */
|
|
if (cpu_model == NULL) {
|
|
cpu_model = kvm_enabled() ? "host" : "POWER7";
|
|
}
|
|
for (i = 0; i < smp_cpus; i++) {
|
|
env = cpu_init(cpu_model);
|
|
|
|
if (!env) {
|
|
fprintf(stderr, "Unable to find PowerPC CPU definition\n");
|
|
exit(1);
|
|
}
|
|
/* Set time-base frequency to 512 MHz */
|
|
cpu_ppc_tb_init(env, TIMEBASE_FREQ);
|
|
qemu_register_reset((QEMUResetHandler *)&cpu_reset, env);
|
|
|
|
env->hreset_vector = 0x60;
|
|
env->hreset_excp_prefix = 0;
|
|
env->gpr[3] = env->cpu_index;
|
|
}
|
|
|
|
/* allocate RAM */
|
|
spapr->ram_limit = ram_size;
|
|
if (spapr->ram_limit > rma_alloc_size) {
|
|
ram_addr_t nonrma_base = rma_alloc_size;
|
|
ram_addr_t nonrma_size = spapr->ram_limit - rma_alloc_size;
|
|
|
|
memory_region_init_ram(ram, "ppc_spapr.ram", nonrma_size);
|
|
vmstate_register_ram_global(ram);
|
|
memory_region_add_subregion(sysmem, nonrma_base, ram);
|
|
}
|
|
|
|
/* allocate hash page table. For now we always make this 16mb,
|
|
* later we should probably make it scale to the size of guest
|
|
* RAM */
|
|
spapr->htab_size = 1ULL << (pteg_shift + 7);
|
|
spapr->htab = qemu_memalign(spapr->htab_size, spapr->htab_size);
|
|
|
|
for (env = first_cpu; env != NULL; env = env->next_cpu) {
|
|
env->external_htab = spapr->htab;
|
|
env->htab_base = -1;
|
|
env->htab_mask = spapr->htab_size - 1;
|
|
|
|
/* Tell KVM that we're in PAPR mode */
|
|
env->spr[SPR_SDR1] = (unsigned long)spapr->htab |
|
|
((pteg_shift + 7) - 18);
|
|
env->spr[SPR_HIOR] = 0;
|
|
|
|
if (kvm_enabled()) {
|
|
kvmppc_set_papr(env);
|
|
}
|
|
}
|
|
|
|
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "spapr-rtas.bin");
|
|
spapr->rtas_size = load_image_targphys(filename, spapr->rtas_addr,
|
|
ram_size - spapr->rtas_addr);
|
|
if (spapr->rtas_size < 0) {
|
|
hw_error("qemu: could not load LPAR rtas '%s'\n", filename);
|
|
exit(1);
|
|
}
|
|
g_free(filename);
|
|
|
|
/* Set up Interrupt Controller */
|
|
spapr->icp = xics_system_init(XICS_IRQS);
|
|
spapr->next_irq = 16;
|
|
|
|
/* Set up VIO bus */
|
|
spapr->vio_bus = spapr_vio_bus_init();
|
|
|
|
for (i = 0; i < MAX_SERIAL_PORTS; i++) {
|
|
if (serial_hds[i]) {
|
|
spapr_vty_create(spapr->vio_bus, SPAPR_VTY_BASE_ADDRESS + i,
|
|
serial_hds[i]);
|
|
}
|
|
}
|
|
|
|
/* Set up PCI */
|
|
spapr_create_phb(spapr, "pci", SPAPR_PCI_BUID,
|
|
SPAPR_PCI_MEM_WIN_ADDR,
|
|
SPAPR_PCI_MEM_WIN_SIZE,
|
|
SPAPR_PCI_IO_WIN_ADDR);
|
|
|
|
for (i = 0; i < nb_nics; i++) {
|
|
NICInfo *nd = &nd_table[i];
|
|
|
|
if (!nd->model) {
|
|
nd->model = g_strdup("ibmveth");
|
|
}
|
|
|
|
if (strcmp(nd->model, "ibmveth") == 0) {
|
|
spapr_vlan_create(spapr->vio_bus, 0x1000 + i, nd);
|
|
} else {
|
|
pci_nic_init_nofail(&nd_table[i], nd->model, NULL);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i <= drive_get_max_bus(IF_SCSI); i++) {
|
|
spapr_vscsi_create(spapr->vio_bus, 0x2000 + i);
|
|
}
|
|
|
|
if (kernel_filename) {
|
|
uint64_t lowaddr = 0;
|
|
|
|
kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
|
|
NULL, &lowaddr, NULL, 1, ELF_MACHINE, 0);
|
|
if (kernel_size < 0) {
|
|
kernel_size = load_image_targphys(kernel_filename,
|
|
KERNEL_LOAD_ADDR,
|
|
ram_size - KERNEL_LOAD_ADDR);
|
|
}
|
|
if (kernel_size < 0) {
|
|
fprintf(stderr, "qemu: could not load kernel '%s'\n",
|
|
kernel_filename);
|
|
exit(1);
|
|
}
|
|
|
|
/* load initrd */
|
|
if (initrd_filename) {
|
|
initrd_base = INITRD_LOAD_ADDR;
|
|
initrd_size = load_image_targphys(initrd_filename, initrd_base,
|
|
ram_size - initrd_base);
|
|
if (initrd_size < 0) {
|
|
fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
|
|
initrd_filename);
|
|
exit(1);
|
|
}
|
|
} else {
|
|
initrd_base = 0;
|
|
initrd_size = 0;
|
|
}
|
|
|
|
spapr->entry_point = KERNEL_LOAD_ADDR;
|
|
} else {
|
|
if (rma_size < (MIN_RMA_SLOF << 20)) {
|
|
fprintf(stderr, "qemu: pSeries SLOF firmware requires >= "
|
|
"%ldM guest RMA (Real Mode Area memory)\n", MIN_RMA_SLOF);
|
|
exit(1);
|
|
}
|
|
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, FW_FILE_NAME);
|
|
fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE);
|
|
if (fw_size < 0) {
|
|
hw_error("qemu: could not load LPAR rtas '%s'\n", filename);
|
|
exit(1);
|
|
}
|
|
g_free(filename);
|
|
spapr->entry_point = 0x100;
|
|
initrd_base = 0;
|
|
initrd_size = 0;
|
|
|
|
/* SLOF will startup the secondary CPUs using RTAS,
|
|
rather than expecting a kexec() style entry */
|
|
for (env = first_cpu; env != NULL; env = env->next_cpu) {
|
|
env->halted = 1;
|
|
}
|
|
}
|
|
|
|
/* Prepare the device tree */
|
|
spapr->fdt_skel = spapr_create_fdt_skel(cpu_model, rma_size,
|
|
initrd_base, initrd_size,
|
|
boot_device, kernel_cmdline,
|
|
pteg_shift + 7);
|
|
assert(spapr->fdt_skel != NULL);
|
|
|
|
qemu_register_reset(spapr_reset, spapr);
|
|
}
|
|
|
|
static QEMUMachine spapr_machine = {
|
|
.name = "pseries",
|
|
.desc = "pSeries Logical Partition (PAPR compliant)",
|
|
.init = ppc_spapr_init,
|
|
.max_cpus = MAX_CPUS,
|
|
.no_vga = 1,
|
|
.no_parallel = 1,
|
|
.use_scsi = 1,
|
|
};
|
|
|
|
static void spapr_machine_init(void)
|
|
{
|
|
qemu_register_machine(&spapr_machine);
|
|
}
|
|
|
|
machine_init(spapr_machine_init);
|