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-rw-r--r--hw/i386/Makefile.objs17
-rw-r--r--hw/i386/kvmvapic.c822
-rw-r--r--hw/i386/multiboot.c349
-rw-r--r--hw/i386/pc.c1161
-rw-r--r--hw/i386/pc_piix.c717
-rw-r--r--hw/i386/pc_q35.c239
-rw-r--r--hw/i386/smbios.c241
-rw-r--r--hw/i386/xen_domainbuild.c299
-rw-r--r--hw/i386/xen_machine_pv.c126
9 files changed, 3965 insertions, 6 deletions
diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs
index 025803aa66..a78c0b2921 100644
--- a/hw/i386/Makefile.objs
+++ b/hw/i386/Makefile.objs
@@ -1,12 +1,11 @@
-obj-y += mc146818rtc.o pc.o
-obj-y += apic_common.o apic.o kvmvapic.o
+obj-y += mc146818rtc.o
+obj-y += apic_common.o apic.o
obj-y += sga.o ioapic_common.o ioapic.o piix_pci.o
obj-y += vmport.o
-obj-y += pci/pci-hotplug.o smbios.o wdt_ib700.o
-obj-y += debugcon.o debugexit.o multiboot.o
-obj-y += pc_piix.o
+obj-y += pci/pci-hotplug.o wdt_ib700.o
+obj-y += debugcon.o debugexit.o
obj-y += pc_sysfw.o
-obj-y += lpc_ich9.o q35.o pc_q35.o
+obj-y += lpc_ich9.o q35.o
obj-$(CONFIG_XEN) += xen_platform.o xen_apic.o
obj-$(CONFIG_XEN_PCI_PASSTHROUGH) += xen-host-pci-device.o
obj-$(CONFIG_XEN_PCI_PASSTHROUGH) += xen_pt.o xen_pt_config_init.o xen_pt_msi.o
@@ -15,3 +14,9 @@ obj-$(CONFIG_SPICE) += qxl.o qxl-logger.o qxl-render.o
obj-y += pc-testdev.o
obj-y := $(addprefix ../,$(obj-y))
+
+obj-y += multiboot.o smbios.o
+obj-y += pc.o pc_piix.o pc_q35.o
+obj-$(CONFIG_XEN) += xen_domainbuild.o xen_machine_pv.o
+
+obj-y += kvmvapic.o
diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c
new file mode 100644
index 0000000000..c151c95c3e
--- /dev/null
+++ b/hw/i386/kvmvapic.c
@@ -0,0 +1,822 @@
+/*
+ * TPR optimization for 32-bit Windows guests (XP and Server 2003)
+ *
+ * Copyright (C) 2007-2008 Qumranet Technologies
+ * Copyright (C) 2012 Jan Kiszka, Siemens AG
+ *
+ * This work is licensed under the terms of the GNU GPL version 2, or
+ * (at your option) any later version. See the COPYING file in the
+ * top-level directory.
+ */
+#include "sysemu/sysemu.h"
+#include "sysemu/cpus.h"
+#include "sysemu/kvm.h"
+#include "hw/apic_internal.h"
+
+#define APIC_DEFAULT_ADDRESS 0xfee00000
+
+#define VAPIC_IO_PORT 0x7e
+
+#define VAPIC_CPU_SHIFT 7
+
+#define ROM_BLOCK_SIZE 512
+#define ROM_BLOCK_MASK (~(ROM_BLOCK_SIZE - 1))
+
+typedef enum VAPICMode {
+ VAPIC_INACTIVE = 0,
+ VAPIC_ACTIVE = 1,
+ VAPIC_STANDBY = 2,
+} VAPICMode;
+
+typedef struct VAPICHandlers {
+ uint32_t set_tpr;
+ uint32_t set_tpr_eax;
+ uint32_t get_tpr[8];
+ uint32_t get_tpr_stack;
+} QEMU_PACKED VAPICHandlers;
+
+typedef struct GuestROMState {
+ char signature[8];
+ uint32_t vaddr;
+ uint32_t fixup_start;
+ uint32_t fixup_end;
+ uint32_t vapic_vaddr;
+ uint32_t vapic_size;
+ uint32_t vcpu_shift;
+ uint32_t real_tpr_addr;
+ VAPICHandlers up;
+ VAPICHandlers mp;
+} QEMU_PACKED GuestROMState;
+
+typedef struct VAPICROMState {
+ SysBusDevice busdev;
+ MemoryRegion io;
+ MemoryRegion rom;
+ uint32_t state;
+ uint32_t rom_state_paddr;
+ uint32_t rom_state_vaddr;
+ uint32_t vapic_paddr;
+ uint32_t real_tpr_addr;
+ GuestROMState rom_state;
+ size_t rom_size;
+ bool rom_mapped_writable;
+} VAPICROMState;
+
+#define TPR_INSTR_ABS_MODRM 0x1
+#define TPR_INSTR_MATCH_MODRM_REG 0x2
+
+typedef struct TPRInstruction {
+ uint8_t opcode;
+ uint8_t modrm_reg;
+ unsigned int flags;
+ TPRAccess access;
+ size_t length;
+ off_t addr_offset;
+} TPRInstruction;
+
+/* must be sorted by length, shortest first */
+static const TPRInstruction tpr_instr[] = {
+ { /* mov abs to eax */
+ .opcode = 0xa1,
+ .access = TPR_ACCESS_READ,
+ .length = 5,
+ .addr_offset = 1,
+ },
+ { /* mov eax to abs */
+ .opcode = 0xa3,
+ .access = TPR_ACCESS_WRITE,
+ .length = 5,
+ .addr_offset = 1,
+ },
+ { /* mov r32 to r/m32 */
+ .opcode = 0x89,
+ .flags = TPR_INSTR_ABS_MODRM,
+ .access = TPR_ACCESS_WRITE,
+ .length = 6,
+ .addr_offset = 2,
+ },
+ { /* mov r/m32 to r32 */
+ .opcode = 0x8b,
+ .flags = TPR_INSTR_ABS_MODRM,
+ .access = TPR_ACCESS_READ,
+ .length = 6,
+ .addr_offset = 2,
+ },
+ { /* push r/m32 */
+ .opcode = 0xff,
+ .modrm_reg = 6,
+ .flags = TPR_INSTR_ABS_MODRM | TPR_INSTR_MATCH_MODRM_REG,
+ .access = TPR_ACCESS_READ,
+ .length = 6,
+ .addr_offset = 2,
+ },
+ { /* mov imm32, r/m32 (c7/0) */
+ .opcode = 0xc7,
+ .modrm_reg = 0,
+ .flags = TPR_INSTR_ABS_MODRM | TPR_INSTR_MATCH_MODRM_REG,
+ .access = TPR_ACCESS_WRITE,
+ .length = 10,
+ .addr_offset = 2,
+ },
+};
+
+static void read_guest_rom_state(VAPICROMState *s)
+{
+ cpu_physical_memory_rw(s->rom_state_paddr, (void *)&s->rom_state,
+ sizeof(GuestROMState), 0);
+}
+
+static void write_guest_rom_state(VAPICROMState *s)
+{
+ cpu_physical_memory_rw(s->rom_state_paddr, (void *)&s->rom_state,
+ sizeof(GuestROMState), 1);
+}
+
+static void update_guest_rom_state(VAPICROMState *s)
+{
+ read_guest_rom_state(s);
+
+ s->rom_state.real_tpr_addr = cpu_to_le32(s->real_tpr_addr);
+ s->rom_state.vcpu_shift = cpu_to_le32(VAPIC_CPU_SHIFT);
+
+ write_guest_rom_state(s);
+}
+
+static int find_real_tpr_addr(VAPICROMState *s, CPUX86State *env)
+{
+ hwaddr paddr;
+ target_ulong addr;
+
+ if (s->state == VAPIC_ACTIVE) {
+ return 0;
+ }
+ /*
+ * If there is no prior TPR access instruction we could analyze (which is
+ * the case after resume from hibernation), we need to scan the possible
+ * virtual address space for the APIC mapping.
+ */
+ for (addr = 0xfffff000; addr >= 0x80000000; addr -= TARGET_PAGE_SIZE) {
+ paddr = cpu_get_phys_page_debug(env, addr);
+ if (paddr != APIC_DEFAULT_ADDRESS) {
+ continue;
+ }
+ s->real_tpr_addr = addr + 0x80;
+ update_guest_rom_state(s);
+ return 0;
+ }
+ return -1;
+}
+
+static uint8_t modrm_reg(uint8_t modrm)
+{
+ return (modrm >> 3) & 7;
+}
+
+static bool is_abs_modrm(uint8_t modrm)
+{
+ return (modrm & 0xc7) == 0x05;
+}
+
+static bool opcode_matches(uint8_t *opcode, const TPRInstruction *instr)
+{
+ return opcode[0] == instr->opcode &&
+ (!(instr->flags & TPR_INSTR_ABS_MODRM) || is_abs_modrm(opcode[1])) &&
+ (!(instr->flags & TPR_INSTR_MATCH_MODRM_REG) ||
+ modrm_reg(opcode[1]) == instr->modrm_reg);
+}
+
+static int evaluate_tpr_instruction(VAPICROMState *s, CPUX86State *env,
+ target_ulong *pip, TPRAccess access)
+{
+ const TPRInstruction *instr;
+ target_ulong ip = *pip;
+ uint8_t opcode[2];
+ uint32_t real_tpr_addr;
+ int i;
+
+ if ((ip & 0xf0000000ULL) != 0x80000000ULL &&
+ (ip & 0xf0000000ULL) != 0xe0000000ULL) {
+ return -1;
+ }
+
+ /*
+ * Early Windows 2003 SMP initialization contains a
+ *
+ * mov imm32, r/m32
+ *
+ * instruction that is patched by TPR optimization. The problem is that
+ * RSP, used by the patched instruction, is zero, so the guest gets a
+ * double fault and dies.
+ */
+ if (env->regs[R_ESP] == 0) {
+ return -1;
+ }
+
+ if (kvm_enabled() && !kvm_irqchip_in_kernel()) {
+ /*
+ * KVM without kernel-based TPR access reporting will pass an IP that
+ * points after the accessing instruction. So we need to look backward
+ * to find the reason.
+ */
+ for (i = 0; i < ARRAY_SIZE(tpr_instr); i++) {
+ instr = &tpr_instr[i];
+ if (instr->access != access) {
+ continue;
+ }
+ if (cpu_memory_rw_debug(env, ip - instr->length, opcode,
+ sizeof(opcode), 0) < 0) {
+ return -1;
+ }
+ if (opcode_matches(opcode, instr)) {
+ ip -= instr->length;
+ goto instruction_ok;
+ }
+ }
+ return -1;
+ } else {
+ if (cpu_memory_rw_debug(env, ip, opcode, sizeof(opcode), 0) < 0) {
+ return -1;
+ }
+ for (i = 0; i < ARRAY_SIZE(tpr_instr); i++) {
+ instr = &tpr_instr[i];
+ if (opcode_matches(opcode, instr)) {
+ goto instruction_ok;
+ }
+ }
+ return -1;
+ }
+
+instruction_ok:
+ /*
+ * Grab the virtual TPR address from the instruction
+ * and update the cached values.
+ */
+ if (cpu_memory_rw_debug(env, ip + instr->addr_offset,
+ (void *)&real_tpr_addr,
+ sizeof(real_tpr_addr), 0) < 0) {
+ return -1;
+ }
+ real_tpr_addr = le32_to_cpu(real_tpr_addr);
+ if ((real_tpr_addr & 0xfff) != 0x80) {
+ return -1;
+ }
+ s->real_tpr_addr = real_tpr_addr;
+ update_guest_rom_state(s);
+
+ *pip = ip;
+ return 0;
+}
+
+static int update_rom_mapping(VAPICROMState *s, CPUX86State *env, target_ulong ip)
+{
+ hwaddr paddr;
+ uint32_t rom_state_vaddr;
+ uint32_t pos, patch, offset;
+
+ /* nothing to do if already activated */
+ if (s->state == VAPIC_ACTIVE) {
+ return 0;
+ }
+
+ /* bail out if ROM init code was not executed (missing ROM?) */
+ if (s->state == VAPIC_INACTIVE) {
+ return -1;
+ }
+
+ /* find out virtual address of the ROM */
+ rom_state_vaddr = s->rom_state_paddr + (ip & 0xf0000000);
+ paddr = cpu_get_phys_page_debug(env, rom_state_vaddr);
+ if (paddr == -1) {
+ return -1;
+ }
+ paddr += rom_state_vaddr & ~TARGET_PAGE_MASK;
+ if (paddr != s->rom_state_paddr) {
+ return -1;
+ }
+ read_guest_rom_state(s);
+ if (memcmp(s->rom_state.signature, "kvm aPiC", 8) != 0) {
+ return -1;
+ }
+ s->rom_state_vaddr = rom_state_vaddr;
+
+ /* fixup addresses in ROM if needed */
+ if (rom_state_vaddr == le32_to_cpu(s->rom_state.vaddr)) {
+ return 0;
+ }
+ for (pos = le32_to_cpu(s->rom_state.fixup_start);
+ pos < le32_to_cpu(s->rom_state.fixup_end);
+ pos += 4) {
+ cpu_physical_memory_rw(paddr + pos - s->rom_state.vaddr,
+ (void *)&offset, sizeof(offset), 0);
+ offset = le32_to_cpu(offset);
+ cpu_physical_memory_rw(paddr + offset, (void *)&patch,
+ sizeof(patch), 0);
+ patch = le32_to_cpu(patch);
+ patch += rom_state_vaddr - le32_to_cpu(s->rom_state.vaddr);
+ patch = cpu_to_le32(patch);
+ cpu_physical_memory_rw(paddr + offset, (void *)&patch,
+ sizeof(patch), 1);
+ }
+ read_guest_rom_state(s);
+ s->vapic_paddr = paddr + le32_to_cpu(s->rom_state.vapic_vaddr) -
+ le32_to_cpu(s->rom_state.vaddr);
+
+ return 0;
+}
+
+/*
+ * Tries to read the unique processor number from the Kernel Processor Control
+ * Region (KPCR) of 32-bit Windows XP and Server 2003. Returns -1 if the KPCR
+ * cannot be accessed or is considered invalid. This also ensures that we are
+ * not patching the wrong guest.
+ */
+static int get_kpcr_number(CPUX86State *env)
+{
+ struct kpcr {
+ uint8_t fill1[0x1c];
+ uint32_t self;
+ uint8_t fill2[0x31];
+ uint8_t number;
+ } QEMU_PACKED kpcr;
+
+ if (cpu_memory_rw_debug(env, env->segs[R_FS].base,
+ (void *)&kpcr, sizeof(kpcr), 0) < 0 ||
+ kpcr.self != env->segs[R_FS].base) {
+ return -1;
+ }
+ return kpcr.number;
+}
+
+static int vapic_enable(VAPICROMState *s, CPUX86State *env)
+{
+ int cpu_number = get_kpcr_number(env);
+ hwaddr vapic_paddr;
+ static const uint8_t enabled = 1;
+
+ if (cpu_number < 0) {
+ return -1;
+ }
+ vapic_paddr = s->vapic_paddr +
+ (((hwaddr)cpu_number) << VAPIC_CPU_SHIFT);
+ cpu_physical_memory_rw(vapic_paddr + offsetof(VAPICState, enabled),
+ (void *)&enabled, sizeof(enabled), 1);
+ apic_enable_vapic(env->apic_state, vapic_paddr);
+
+ s->state = VAPIC_ACTIVE;
+
+ return 0;
+}
+
+static void patch_byte(CPUX86State *env, target_ulong addr, uint8_t byte)
+{
+ cpu_memory_rw_debug(env, addr, &byte, 1, 1);
+}
+
+static void patch_call(VAPICROMState *s, CPUX86State *env, target_ulong ip,
+ uint32_t target)
+{
+ uint32_t offset;
+
+ offset = cpu_to_le32(target - ip - 5);
+ patch_byte(env, ip, 0xe8); /* call near */
+ cpu_memory_rw_debug(env, ip + 1, (void *)&offset, sizeof(offset), 1);
+}
+
+static void patch_instruction(VAPICROMState *s, X86CPU *cpu, target_ulong ip)
+{
+ CPUState *cs = CPU(cpu);
+ CPUX86State *env = &cpu->env;
+ VAPICHandlers *handlers;
+ uint8_t opcode[2];
+ uint32_t imm32;
+ target_ulong current_pc = 0;
+ target_ulong current_cs_base = 0;
+ int current_flags = 0;
+
+ if (smp_cpus == 1) {
+ handlers = &s->rom_state.up;
+ } else {
+ handlers = &s->rom_state.mp;
+ }
+
+ if (!kvm_enabled()) {
+ cpu_restore_state(env, env->mem_io_pc);
+ cpu_get_tb_cpu_state(env, &current_pc, &current_cs_base,
+ &current_flags);
+ }
+
+ pause_all_vcpus();
+
+ cpu_memory_rw_debug(env, ip, opcode, sizeof(opcode), 0);
+
+ switch (opcode[0]) {
+ case 0x89: /* mov r32 to r/m32 */
+ patch_byte(env, ip, 0x50 + modrm_reg(opcode[1])); /* push reg */
+ patch_call(s, env, ip + 1, handlers->set_tpr);
+ break;
+ case 0x8b: /* mov r/m32 to r32 */
+ patch_byte(env, ip, 0x90);
+ patch_call(s, env, ip + 1, handlers->get_tpr[modrm_reg(opcode[1])]);
+ break;
+ case 0xa1: /* mov abs to eax */
+ patch_call(s, env, ip, handlers->get_tpr[0]);
+ break;
+ case 0xa3: /* mov eax to abs */
+ patch_call(s, env, ip, handlers->set_tpr_eax);
+ break;
+ case 0xc7: /* mov imm32, r/m32 (c7/0) */
+ patch_byte(env, ip, 0x68); /* push imm32 */
+ cpu_memory_rw_debug(env, ip + 6, (void *)&imm32, sizeof(imm32), 0);
+ cpu_memory_rw_debug(env, ip + 1, (void *)&imm32, sizeof(imm32), 1);
+ patch_call(s, env, ip + 5, handlers->set_tpr);
+ break;
+ case 0xff: /* push r/m32 */
+ patch_byte(env, ip, 0x50); /* push eax */
+ patch_call(s, env, ip + 1, handlers->get_tpr_stack);
+ break;
+ default:
+ abort();
+ }
+
+ resume_all_vcpus();
+
+ if (!kvm_enabled()) {
+ cs->current_tb = NULL;
+ tb_gen_code(env, current_pc, current_cs_base, current_flags, 1);
+ cpu_resume_from_signal(env, NULL);
+ }
+}
+
+void vapic_report_tpr_access(DeviceState *dev, CPUState *cs, target_ulong ip,
+ TPRAccess access)
+{
+ VAPICROMState *s = DO_UPCAST(VAPICROMState, busdev.qdev, dev);
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ cpu_synchronize_state(env);
+
+ if (evaluate_tpr_instruction(s, env, &ip, access) < 0) {
+ if (s->state == VAPIC_ACTIVE) {
+ vapic_enable(s, env);
+ }
+ return;
+ }
+ if (update_rom_mapping(s, env, ip) < 0) {
+ return;
+ }
+ if (vapic_enable(s, env) < 0) {
+ return;
+ }
+ patch_instruction(s, cpu, ip);
+}
+
+typedef struct VAPICEnableTPRReporting {
+ DeviceState *apic;
+ bool enable;
+} VAPICEnableTPRReporting;
+
+static void vapic_do_enable_tpr_reporting(void *data)
+{
+ VAPICEnableTPRReporting *info = data;
+
+ apic_enable_tpr_access_reporting(info->apic, info->enable);
+}
+
+static void vapic_enable_tpr_reporting(bool enable)
+{
+ VAPICEnableTPRReporting info = {
+ .enable = enable,
+ };
+ X86CPU *cpu;
+ CPUX86State *env;
+
+ for (env = first_cpu; env != NULL; env = env->next_cpu) {
+ cpu = x86_env_get_cpu(env);
+ info.apic = env->apic_state;
+ run_on_cpu(CPU(cpu), vapic_do_enable_tpr_reporting, &info);
+ }
+}
+
+static void vapic_reset(DeviceState *dev)
+{
+ VAPICROMState *s = DO_UPCAST(VAPICROMState, busdev.qdev, dev);
+
+ if (s->state == VAPIC_ACTIVE) {
+ s->state = VAPIC_STANDBY;
+ }
+ vapic_enable_tpr_reporting(false);
+}
+
+/*
+ * Set the IRQ polling hypercalls to the supported variant:
+ * - vmcall if using KVM in-kernel irqchip
+ * - 32-bit VAPIC port write otherwise
+ */
+static int patch_hypercalls(VAPICROMState *s)
+{
+ hwaddr rom_paddr = s->rom_state_paddr & ROM_BLOCK_MASK;
+ static const uint8_t vmcall_pattern[] = { /* vmcall */
+ 0xb8, 0x1, 0, 0, 0, 0xf, 0x1, 0xc1
+ };
+ static const uint8_t outl_pattern[] = { /* nop; outl %eax,0x7e */
+ 0xb8, 0x1, 0, 0, 0, 0x90, 0xe7, 0x7e
+ };
+ uint8_t alternates[2];
+ const uint8_t *pattern;
+ const uint8_t *patch;
+ int patches = 0;
+ off_t pos;
+ uint8_t *rom;
+
+ rom = g_malloc(s->rom_size);
+ cpu_physical_memory_rw(rom_paddr, rom, s->rom_size, 0);
+
+ for (pos = 0; pos < s->rom_size - sizeof(vmcall_pattern); pos++) {
+ if (kvm_irqchip_in_kernel()) {
+ pattern = outl_pattern;
+ alternates[0] = outl_pattern[7];
+ alternates[1] = outl_pattern[7];
+ patch = &vmcall_pattern[5];
+ } else {
+ pattern = vmcall_pattern;
+ alternates[0] = vmcall_pattern[7];
+ alternates[1] = 0xd9; /* AMD's VMMCALL */
+ patch = &outl_pattern[5];
+ }
+ if (memcmp(rom + pos, pattern, 7) == 0 &&
+ (rom[pos + 7] == alternates[0] || rom[pos + 7] == alternates[1])) {
+ cpu_physical_memory_rw(rom_paddr + pos + 5, (uint8_t *)patch,
+ 3, 1);
+ /*
+ * Don't flush the tb here. Under ordinary conditions, the patched
+ * calls are miles away from the current IP. Under malicious
+ * conditions, the guest could trick us to crash.
+ */
+ }
+ }
+
+ g_free(rom);
+
+ if (patches != 0 && patches != 2) {
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * For TCG mode or the time KVM honors read-only memory regions, we need to
+ * enable write access to the option ROM so that variables can be updated by
+ * the guest.
+ */
+static void vapic_map_rom_writable(VAPICROMState *s)
+{
+ hwaddr rom_paddr = s->rom_state_paddr & ROM_BLOCK_MASK;
+ MemoryRegionSection section;
+ MemoryRegion *as;
+ size_t rom_size;
+ uint8_t *ram;
+
+ as = sysbus_address_space(&s->busdev);
+
+ if (s->rom_mapped_writable) {
+ memory_region_del_subregion(as, &s->rom);
+ memory_region_destroy(&s->rom);
+ }
+
+ /* grab RAM memory region (region @rom_paddr may still be pc.rom) */
+ section = memory_region_find(as, 0, 1);
+
+ /* read ROM size from RAM region */
+ ram = memory_region_get_ram_ptr(section.mr);
+ rom_size = ram[rom_paddr + 2] * ROM_BLOCK_SIZE;
+ s->rom_size = rom_size;
+
+ /* We need to round to avoid creating subpages
+ * from which we cannot run code. */
+ rom_size += rom_paddr & ~TARGET_PAGE_MASK;
+ rom_paddr &= TARGET_PAGE_MASK;
+ rom_size = TARGET_PAGE_ALIGN(rom_size);
+
+ memory_region_init_alias(&s->rom, "kvmvapic-rom", section.mr, rom_paddr,
+ rom_size);
+ memory_region_add_subregion_overlap(as, rom_paddr, &s->rom, 1000);
+ s->rom_mapped_writable = true;
+}
+
+static int vapic_prepare(VAPICROMState *s)
+{
+ vapic_map_rom_writable(s);
+
+ if (patch_hypercalls(s) < 0) {
+ return -1;
+ }
+
+ vapic_enable_tpr_reporting(true);
+
+ return 0;
+}
+
+static void vapic_write(void *opaque, hwaddr addr, uint64_t data,
+ unsigned int size)
+{
+ CPUX86State *env = cpu_single_env;
+ hwaddr rom_paddr;
+ VAPICROMState *s = opaque;
+
+ cpu_synchronize_state(env);
+
+ /*
+ * The VAPIC supports two PIO-based hypercalls, both via port 0x7E.
+ * o 16-bit write access:
+ * Reports the option ROM initialization to the hypervisor. Written
+ * value is the offset of the state structure in the ROM.
+ * o 8-bit write access:
+ * Reactivates the VAPIC after a guest hibernation, i.e. after the
+ * option ROM content has been re-initialized by a guest power cycle.
+ * o 32-bit write access:
+ * Poll for pending IRQs, considering the current VAPIC state.
+ */
+ switch (size) {
+ case 2:
+ if (s->state == VAPIC_INACTIVE) {
+ rom_paddr = (env->segs[R_CS].base + env->eip) & ROM_BLOCK_MASK;
+ s->rom_state_paddr = rom_paddr + data;
+
+ s->state = VAPIC_STANDBY;
+ }
+ if (vapic_prepare(s) < 0) {
+ s->state = VAPIC_INACTIVE;
+ break;
+ }
+ break;
+ case 1:
+ if (kvm_enabled()) {
+ /*
+ * Disable triggering instruction in ROM by writing a NOP.
+ *
+ * We cannot do this in TCG mode as the reported IP is not
+ * accurate.
+ */
+ pause_all_vcpus();
+ patch_byte(env, env->eip - 2, 0x66);
+ patch_byte(env, env->eip - 1, 0x90);
+ resume_all_vcpus();
+ }
+
+ if (s->state == VAPIC_ACTIVE) {
+ break;
+ }
+ if (update_rom_mapping(s, env, env->eip) < 0) {
+ break;
+ }
+ if (find_real_tpr_addr(s, env) < 0) {
+ break;
+ }
+ vapic_enable(s, env);
+ break;
+ default:
+ case 4:
+ if (!kvm_irqchip_in_kernel()) {
+ apic_poll_irq(env->apic_state);
+ }
+ break;
+ }
+}
+
+static const MemoryRegionOps vapic_ops = {
+ .write = vapic_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static int vapic_init(SysBusDevice *dev)
+{
+ VAPICROMState *s = FROM_SYSBUS(VAPICROMState, dev);
+
+ memory_region_init_io(&s->io, &vapic_ops, s, "kvmvapic", 2);
+ sysbus_add_io(dev, VAPIC_IO_PORT, &s->io);
+ sysbus_init_ioports(dev, VAPIC_IO_PORT, 2);
+
+ option_rom[nb_option_roms].name = "kvmvapic.bin";
+ option_rom[nb_option_roms].bootindex = -1;
+ nb_option_roms++;
+
+ return 0;
+}
+
+static void do_vapic_enable(void *data)
+{
+ VAPICROMState *s = data;
+
+ vapic_enable(s, first_cpu);
+}
+
+static int vapic_post_load(void *opaque, int version_id)
+{
+ VAPICROMState *s = opaque;
+ uint8_t *zero;
+
+ /*
+ * The old implementation of qemu-kvm did not provide the state
+ * VAPIC_STANDBY. Reconstruct it.
+ */
+ if (s->state == VAPIC_INACTIVE && s->rom_state_paddr != 0) {
+ s->state = VAPIC_STANDBY;
+ }
+
+ if (s->state != VAPIC_INACTIVE) {
+ if (vapic_prepare(s) < 0) {
+ return -1;
+ }
+ }
+ if (s->state == VAPIC_ACTIVE) {
+ if (smp_cpus == 1) {
+ run_on_cpu(ENV_GET_CPU(first_cpu), do_vapic_enable, s);
+ } else {
+ zero = g_malloc0(s->rom_state.vapic_size);
+ cpu_physical_memory_rw(s->vapic_paddr, zero,
+ s->rom_state.vapic_size, 1);
+ g_free(zero);
+ }
+ }
+
+ return 0;
+}
+
+static const VMStateDescription vmstate_handlers = {
+ .name = "kvmvapic-handlers",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(set_tpr, VAPICHandlers),
+ VMSTATE_UINT32(set_tpr_eax, VAPICHandlers),
+ VMSTATE_UINT32_ARRAY(get_tpr, VAPICHandlers, 8),
+ VMSTATE_UINT32(get_tpr_stack, VAPICHandlers),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_guest_rom = {
+ .name = "kvmvapic-guest-rom",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UNUSED(8), /* signature */
+ VMSTATE_UINT32(vaddr, GuestROMState),
+ VMSTATE_UINT32(fixup_start, GuestROMState),
+ VMSTATE_UINT32(fixup_end, GuestROMState),
+ VMSTATE_UINT32(vapic_vaddr, GuestROMState),
+ VMSTATE_UINT32(vapic_size, GuestROMState),
+ VMSTATE_UINT32(vcpu_shift, GuestROMState),
+ VMSTATE_UINT32(real_tpr_addr, GuestROMState),
+ VMSTATE_STRUCT(up, GuestROMState, 0, vmstate_handlers, VAPICHandlers),
+ VMSTATE_STRUCT(mp, GuestROMState, 0, vmstate_handlers, VAPICHandlers),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_vapic = {
+ .name = "kvm-tpr-opt", /* compatible with qemu-kvm VAPIC */
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .post_load = vapic_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_STRUCT(rom_state, VAPICROMState, 0, vmstate_guest_rom,
+ GuestROMState),
+ VMSTATE_UINT32(state, VAPICROMState),
+ VMSTATE_UINT32(real_tpr_addr, VAPICROMState),
+ VMSTATE_UINT32(rom_state_vaddr, VAPICROMState),
+ VMSTATE_UINT32(vapic_paddr, VAPICROMState),
+ VMSTATE_UINT32(rom_state_paddr, VAPICROMState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void vapic_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *sc = SYS_BUS_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->no_user = 1;
+ dc->reset = vapic_reset;
+ dc->vmsd = &vmstate_vapic;
+ sc->init = vapic_init;
+}
+
+static const TypeInfo vapic_type = {
+ .name = "kvmvapic",
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(VAPICROMState),
+ .class_init = vapic_class_init,
+};
+
+static void vapic_register(void)
+{
+ type_register_static(&vapic_type);
+}
+
+type_init(vapic_register);
diff --git a/hw/i386/multiboot.c b/hw/i386/multiboot.c
new file mode 100644
index 0000000000..3cb228f0ca
--- /dev/null
+++ b/hw/i386/multiboot.c
@@ -0,0 +1,349 @@
+/*
+ * QEMU PC System Emulator
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * 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 "hw/hw.h"
+#include "hw/fw_cfg.h"
+#include "hw/multiboot.h"
+#include "hw/loader.h"
+#include "elf.h"
+#include "sysemu/sysemu.h"
+
+/* Show multiboot debug output */
+//#define DEBUG_MULTIBOOT
+
+#ifdef DEBUG_MULTIBOOT
+#define mb_debug(a...) fprintf(stderr, ## a)
+#else
+#define mb_debug(a...)
+#endif
+
+#define MULTIBOOT_STRUCT_ADDR 0x9000
+
+#if MULTIBOOT_STRUCT_ADDR > 0xf0000
+#error multiboot struct needs to fit in 16 bit real mode
+#endif
+
+enum {
+ /* Multiboot info */
+ MBI_FLAGS = 0,
+ MBI_MEM_LOWER = 4,
+ MBI_MEM_UPPER = 8,
+ MBI_BOOT_DEVICE = 12,
+ MBI_CMDLINE = 16,
+ MBI_MODS_COUNT = 20,
+ MBI_MODS_ADDR = 24,
+ MBI_MMAP_ADDR = 48,
+
+ MBI_SIZE = 88,
+
+ /* Multiboot modules */
+ MB_MOD_START = 0,
+ MB_MOD_END = 4,
+ MB_MOD_CMDLINE = 8,
+
+ MB_MOD_SIZE = 16,
+
+ /* Region offsets */
+ ADDR_E820_MAP = MULTIBOOT_STRUCT_ADDR + 0,
+ ADDR_MBI = ADDR_E820_MAP + 0x500,
+
+ /* Multiboot flags */
+ MULTIBOOT_FLAGS_MEMORY = 1 << 0,
+ MULTIBOOT_FLAGS_BOOT_DEVICE = 1 << 1,
+ MULTIBOOT_FLAGS_CMDLINE = 1 << 2,
+ MULTIBOOT_FLAGS_MODULES = 1 << 3,
+ MULTIBOOT_FLAGS_MMAP = 1 << 6,
+};
+
+typedef struct {
+ /* buffer holding kernel, cmdlines and mb_infos */
+ void *mb_buf;
+ /* address in target */
+ hwaddr mb_buf_phys;
+ /* size of mb_buf in bytes */
+ unsigned mb_buf_size;
+ /* offset of mb-info's in bytes */
+ hwaddr offset_mbinfo;
+ /* offset in buffer for cmdlines in bytes */
+ hwaddr offset_cmdlines;
+ /* offset of modules in bytes */
+ hwaddr offset_mods;
+ /* available slots for mb modules infos */
+ int mb_mods_avail;
+ /* currently used slots of mb modules */
+ int mb_mods_count;
+} MultibootState;
+
+static uint32_t mb_add_cmdline(MultibootState *s, const char *cmdline)
+{
+ hwaddr p = s->offset_cmdlines;
+ char *b = (char *)s->mb_buf + p;
+
+ get_opt_value(b, strlen(cmdline) + 1, cmdline);
+ s->offset_cmdlines += strlen(b) + 1;
+ return s->mb_buf_phys + p;
+}
+
+static void mb_add_mod(MultibootState *s,
+ hwaddr start, hwaddr end,
+ hwaddr cmdline_phys)
+{
+ char *p;
+ assert(s->mb_mods_count < s->mb_mods_avail);
+
+ p = (char *)s->mb_buf + s->offset_mbinfo + MB_MOD_SIZE * s->mb_mods_count;
+
+ stl_p(p + MB_MOD_START, start);
+ stl_p(p + MB_MOD_END, end);
+ stl_p(p + MB_MOD_CMDLINE, cmdline_phys);
+
+ mb_debug("mod%02d: "TARGET_FMT_plx" - "TARGET_FMT_plx"\n",
+ s->mb_mods_count, start, end);
+
+ s->mb_mods_count++;
+}
+
+int load_multiboot(void *fw_cfg,
+ FILE *f,
+ const char *kernel_filename,
+ const char *initrd_filename,
+ const char *kernel_cmdline,
+ int kernel_file_size,
+ uint8_t *header)
+{
+ int i, is_multiboot = 0;
+ uint32_t flags = 0;
+ uint32_t mh_entry_addr;
+ uint32_t mh_load_addr;
+ uint32_t mb_kernel_size;
+ MultibootState mbs;
+ uint8_t bootinfo[MBI_SIZE];
+ uint8_t *mb_bootinfo_data;
+
+ /* Ok, let's see if it is a multiboot image.
+ The header is 12x32bit long, so the latest entry may be 8192 - 48. */
+ for (i = 0; i < (8192 - 48); i += 4) {
+ if (ldl_p(header+i) == 0x1BADB002) {
+ uint32_t checksum = ldl_p(header+i+8);
+ flags = ldl_p(header+i+4);
+ checksum += flags;
+ checksum += (uint32_t)0x1BADB002;
+ if (!checksum) {
+ is_multiboot = 1;
+ break;
+ }
+ }
+ }
+
+ if (!is_multiboot)
+ return 0; /* no multiboot */
+
+ mb_debug("qemu: I believe we found a multiboot image!\n");
+ memset(bootinfo, 0, sizeof(bootinfo));
+ memset(&mbs, 0, sizeof(mbs));
+
+ if (flags & 0x00000004) { /* MULTIBOOT_HEADER_HAS_VBE */
+ fprintf(stderr, "qemu: multiboot knows VBE. we don't.\n");
+ }
+ if (!(flags & 0x00010000)) { /* MULTIBOOT_HEADER_HAS_ADDR */
+ uint64_t elf_entry;
+ uint64_t elf_low, elf_high;
+ int kernel_size;
+ fclose(f);
+
+ if (((struct elf64_hdr*)header)->e_machine == EM_X86_64) {
+ fprintf(stderr, "Cannot load x86-64 image, give a 32bit one.\n");
+ exit(1);
+ }
+
+ kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry,
+ &elf_low, &elf_high, 0, ELF_MACHINE, 0);
+ if (kernel_size < 0) {
+ fprintf(stderr, "Error while loading elf kernel\n");
+ exit(1);
+ }
+ mh_load_addr = elf_low;
+ mb_kernel_size = elf_high - elf_low;
+ mh_entry_addr = elf_entry;
+
+ mbs.mb_buf = g_malloc(mb_kernel_size);
+ if (rom_copy(mbs.mb_buf, mh_load_addr, mb_kernel_size) != mb_kernel_size) {
+ fprintf(stderr, "Error while fetching elf kernel from rom\n");
+ exit(1);
+ }
+
+ mb_debug("qemu: loading multiboot-elf kernel (%#x bytes) with entry %#zx\n",
+ mb_kernel_size, (size_t)mh_entry_addr);
+ } else {
+ /* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_ADDR. */
+ uint32_t mh_header_addr = ldl_p(header+i+12);
+ uint32_t mh_load_end_addr = ldl_p(header+i+20);
+ uint32_t mh_bss_end_addr = ldl_p(header+i+24);
+ mh_load_addr = ldl_p(header+i+16);
+ uint32_t mb_kernel_text_offset = i - (mh_header_addr - mh_load_addr);
+ uint32_t mb_load_size = 0;
+ mh_entry_addr = ldl_p(header+i+28);
+
+ if (mh_load_end_addr) {
+ mb_kernel_size = mh_bss_end_addr - mh_load_addr;
+ mb_load_size = mh_load_end_addr - mh_load_addr;
+ } else {
+ mb_kernel_size = kernel_file_size - mb_kernel_text_offset;
+ mb_load_size = mb_kernel_size;
+ }
+
+ /* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_VBE.
+ uint32_t mh_mode_type = ldl_p(header+i+32);
+ uint32_t mh_width = ldl_p(header+i+36);
+ uint32_t mh_height = ldl_p(header+i+40);
+ uint32_t mh_depth = ldl_p(header+i+44); */
+
+ mb_debug("multiboot: mh_header_addr = %#x\n", mh_header_addr);
+ mb_debug("multiboot: mh_load_addr = %#x\n", mh_load_addr);
+ mb_debug("multiboot: mh_load_end_addr = %#x\n", mh_load_end_addr);
+ mb_debug("multiboot: mh_bss_end_addr = %#x\n", mh_bss_end_addr);
+ mb_debug("qemu: loading multiboot kernel (%#x bytes) at %#x\n",
+ mb_load_size, mh_load_addr);
+
+ mbs.mb_buf = g_malloc(mb_kernel_size);
+ fseek(f, mb_kernel_text_offset, SEEK_SET);
+ if (fread(mbs.mb_buf, 1, mb_load_size, f) != mb_load_size) {
+ fprintf(stderr, "fread() failed\n");
+ exit(1);
+ }
+ memset(mbs.mb_buf + mb_load_size, 0, mb_kernel_size - mb_load_size);
+ fclose(f);
+ }
+
+ mbs.mb_buf_phys = mh_load_addr;
+
+ mbs.mb_buf_size = TARGET_PAGE_ALIGN(mb_kernel_size);
+ mbs.offset_mbinfo = mbs.mb_buf_size;
+
+ /* Calculate space for cmdlines and mb_mods */
+ mbs.mb_buf_size += strlen(kernel_filename) + 1;
+ mbs.mb_buf_size += strlen(kernel_cmdline) + 1;
+ if (initrd_filename) {
+ const char *r = initrd_filename;
+ mbs.mb_buf_size += strlen(r) + 1;
+ mbs.mb_mods_avail = 1;
+ while (*(r = get_opt_value(NULL, 0, r))) {
+ mbs.mb_mods_avail++;
+ r++;
+ }
+ mbs.mb_buf_size += MB_MOD_SIZE * mbs.mb_mods_avail;
+ }
+
+ mbs.mb_buf_size = TARGET_PAGE_ALIGN(mbs.mb_buf_size);
+
+ /* enlarge mb_buf to hold cmdlines and mb-info structs */
+ mbs.mb_buf = g_realloc(mbs.mb_buf, mbs.mb_buf_size);
+ mbs.offset_cmdlines = mbs.offset_mbinfo + mbs.mb_mods_avail * MB_MOD_SIZE;
+
+ if (initrd_filename) {
+ char *next_initrd, not_last;
+
+ mbs.offset_mods = mbs.mb_buf_size;
+
+ do {
+ char *next_space;
+ int mb_mod_length;
+ uint32_t offs = mbs.mb_buf_size;
+
+ next_initrd = (char *)get_opt_value(NULL, 0, initrd_filename);
+ not_last = *next_initrd;
+ *next_initrd = '\0';
+ /* if a space comes after the module filename, treat everything
+ after that as parameters */
+ hwaddr c = mb_add_cmdline(&mbs, initrd_filename);
+ if ((next_space = strchr(initrd_filename, ' ')))
+ *next_space = '\0';
+ mb_debug("multiboot loading module: %s\n", initrd_filename);
+ mb_mod_length = get_image_size(initrd_filename);
+ if (mb_mod_length < 0) {
+ fprintf(stderr, "Failed to open file '%s'\n", initrd_filename);
+ exit(1);
+ }
+
+ mbs.mb_buf_size = TARGET_PAGE_ALIGN(mb_mod_length + mbs.mb_buf_size);
+ mbs.mb_buf = g_realloc(mbs.mb_buf, mbs.mb_buf_size);
+
+ load_image(initrd_filename, (unsigned char *)mbs.mb_buf + offs);
+ mb_add_mod(&mbs, mbs.mb_buf_phys + offs,
+ mbs.mb_buf_phys + offs + mb_mod_length, c);
+
+ mb_debug("mod_start: %p\nmod_end: %p\n cmdline: "TARGET_FMT_plx"\n",
+ (char *)mbs.mb_buf + offs,
+ (char *)mbs.mb_buf + offs + mb_mod_length, c);
+ initrd_filename = next_initrd+1;
+ } while (not_last);
+ }
+
+ /* Commandline support */
+ char kcmdline[strlen(kernel_filename) + strlen(kernel_cmdline) + 2];
+ snprintf(kcmdline, sizeof(kcmdline), "%s %s",
+ kernel_filename, kernel_cmdline);
+ stl_p(bootinfo + MBI_CMDLINE, mb_add_cmdline(&mbs, kcmdline));
+
+ stl_p(bootinfo + MBI_MODS_ADDR, mbs.mb_buf_phys + mbs.offset_mbinfo);
+ stl_p(bootinfo + MBI_MODS_COUNT, mbs.mb_mods_count); /* mods_count */
+
+ /* the kernel is where we want it to be now */
+ stl_p(bootinfo + MBI_FLAGS, MULTIBOOT_FLAGS_MEMORY
+ | MULTIBOOT_FLAGS_BOOT_DEVICE
+ | MULTIBOOT_FLAGS_CMDLINE
+ | MULTIBOOT_FLAGS_MODULES
+ | MULTIBOOT_FLAGS_MMAP);
+ stl_p(bootinfo + MBI_MEM_LOWER, 640);
+ stl_p(bootinfo + MBI_MEM_UPPER, (ram_size / 1024) - 1024);
+ stl_p(bootinfo + MBI_BOOT_DEVICE, 0x8000ffff); /* XXX: use the -boot switch? */
+ stl_p(bootinfo + MBI_MMAP_ADDR, ADDR_E820_MAP);
+
+ mb_debug("multiboot: mh_entry_addr = %#x\n", mh_entry_addr);
+ mb_debug(" mb_buf_phys = "TARGET_FMT_plx"\n", mbs.mb_buf_phys);
+ mb_debug(" mod_start = "TARGET_FMT_plx"\n", mbs.mb_buf_phys + mbs.offset_mods);
+ mb_debug(" mb_mods_count = %d\n", mbs.mb_mods_count);
+
+ /* save bootinfo off the stack */
+ mb_bootinfo_data = g_malloc(sizeof(bootinfo));
+ memcpy(mb_bootinfo_data, bootinfo, sizeof(bootinfo));
+
+ /* Pass variables to option rom */
+ fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ENTRY, mh_entry_addr);
+ fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, mh_load_addr);
+ fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, mbs.mb_buf_size);
+ fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA,
+ mbs.mb_buf, mbs.mb_buf_size);
+
+ fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, ADDR_MBI);
+ fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, sizeof(bootinfo));
+ fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, mb_bootinfo_data,
+ sizeof(bootinfo));
+
+ option_rom[nb_option_roms].name = "multiboot.bin";
+ option_rom[nb_option_roms].bootindex = 0;
+ nb_option_roms++;
+
+ return 1; /* yes, we are multiboot */
+}
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
new file mode 100644
index 0000000000..309bb83cab
--- /dev/null
+++ b/hw/i386/pc.c
@@ -0,0 +1,1161 @@
+/*
+ * QEMU PC System Emulator
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * 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 "hw/hw.h"
+#include "hw/pc.h"
+#include "hw/serial.h"
+#include "hw/apic.h"
+#include "hw/fdc.h"
+#include "hw/ide.h"
+#include "hw/pci/pci.h"
+#include "monitor/monitor.h"
+#include "hw/fw_cfg.h"
+#include "hw/hpet_emul.h"
+#include "hw/smbios.h"
+#include "hw/loader.h"
+#include "elf.h"
+#include "hw/multiboot.h"
+#include "hw/mc146818rtc.h"
+#include "hw/i8254.h"
+#include "hw/pcspk.h"
+#include "hw/pci/msi.h"
+#include "hw/sysbus.h"
+#include "sysemu/sysemu.h"
+#include "sysemu/kvm.h"
+#include "kvm_i386.h"
+#include "hw/xen.h"
+#include "sysemu/blockdev.h"
+#include "hw/block-common.h"
+#include "ui/qemu-spice.h"
+#include "exec/memory.h"
+#include "exec/address-spaces.h"
+#include "sysemu/arch_init.h"
+#include "qemu/bitmap.h"
+
+/* debug PC/ISA interrupts */
+//#define DEBUG_IRQ
+
+#ifdef DEBUG_IRQ
+#define DPRINTF(fmt, ...) \
+ do { printf("CPUIRQ: " fmt , ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF(fmt, ...)
+#endif
+
+/* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
+#define ACPI_DATA_SIZE 0x10000
+#define BIOS_CFG_IOPORT 0x510
+#define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
+#define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
+#define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2)
+#define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3)
+#define FW_CFG_HPET (FW_CFG_ARCH_LOCAL + 4)
+
+#define E820_NR_ENTRIES 16
+
+struct e820_entry {
+ uint64_t address;
+ uint64_t length;
+ uint32_t type;
+} QEMU_PACKED __attribute((__aligned__(4)));
+
+struct e820_table {
+ uint32_t count;
+ struct e820_entry entry[E820_NR_ENTRIES];
+} QEMU_PACKED __attribute((__aligned__(4)));
+
+static struct e820_table e820_table;
+struct hpet_fw_config hpet_cfg = {.count = UINT8_MAX};
+
+void gsi_handler(void *opaque, int n, int level)
+{
+ GSIState *s = opaque;
+
+ DPRINTF("pc: %s GSI %d\n", level ? "raising" : "lowering", n);
+ if (n < ISA_NUM_IRQS) {
+ qemu_set_irq(s->i8259_irq[n], level);
+ }
+ qemu_set_irq(s->ioapic_irq[n], level);
+}
+
+static void ioport80_write(void *opaque, hwaddr addr, uint64_t data,
+ unsigned size)
+{
+}
+
+static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size)
+{
+ return 0xffffffffffffffffULL;
+}
+
+/* MSDOS compatibility mode FPU exception support */
+static qemu_irq ferr_irq;
+
+void pc_register_ferr_irq(qemu_irq irq)
+{
+ ferr_irq = irq;
+}
+
+/* XXX: add IGNNE support */
+void cpu_set_ferr(CPUX86State *s)
+{
+ qemu_irq_raise(ferr_irq);
+}
+
+static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data,
+ unsigned size)
+{
+ qemu_irq_lower(ferr_irq);
+}
+
+static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)
+{
+ return 0xffffffffffffffffULL;
+}
+
+/* TSC handling */
+uint64_t cpu_get_tsc(CPUX86State *env)
+{
+ return cpu_get_ticks();
+}
+
+/* SMM support */
+
+static cpu_set_smm_t smm_set;
+static void *smm_arg;
+
+void cpu_smm_register(cpu_set_smm_t callback, void *arg)
+{
+ assert(smm_set == NULL);
+ assert(smm_arg == NULL);
+ smm_set = callback;
+ smm_arg = arg;
+}
+
+void cpu_smm_update(CPUX86State *env)
+{
+ if (smm_set && smm_arg && env == first_cpu)
+ smm_set(!!(env->hflags & HF_SMM_MASK), smm_arg);
+}
+
+
+/* IRQ handling */
+int cpu_get_pic_interrupt(CPUX86State *env)
+{
+ int intno;
+
+ intno = apic_get_interrupt(env->apic_state);
+ if (intno >= 0) {
+ return intno;
+ }
+ /* read the irq from the PIC */
+ if (!apic_accept_pic_intr(env->apic_state)) {
+ return -1;
+ }
+
+ intno = pic_read_irq(isa_pic);
+ return intno;
+}
+
+static void pic_irq_request(void *opaque, int irq, int level)
+{
+ CPUX86State *env = first_cpu;
+
+ DPRINTF("pic_irqs: %s irq %d\n", level? "raise" : "lower", irq);
+ if (env->apic_state) {
+ while (env) {
+ if (apic_accept_pic_intr(env->apic_state)) {
+ apic_deliver_pic_intr(env->apic_state, level);
+ }
+ env = env->next_cpu;
+ }
+ } else {
+ if (level)
+ cpu_interrupt(env, CPU_INTERRUPT_HARD);
+ else
+ cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
+ }
+}
+
+/* PC cmos mappings */
+
+#define REG_EQUIPMENT_BYTE 0x14
+
+static int cmos_get_fd_drive_type(FDriveType fd0)
+{
+ int val;
+
+ switch (fd0) {
+ case FDRIVE_DRV_144:
+ /* 1.44 Mb 3"5 drive */
+ val = 4;
+ break;
+ case FDRIVE_DRV_288:
+ /* 2.88 Mb 3"5 drive */
+ val = 5;
+ break;
+ case FDRIVE_DRV_120:
+ /* 1.2 Mb 5"5 drive */
+ val = 2;
+ break;
+ case FDRIVE_DRV_NONE:
+ default:
+ val = 0;
+ break;
+ }
+ return val;
+}
+
+static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs,
+ int16_t cylinders, int8_t heads, int8_t sectors)
+{
+ rtc_set_memory(s, type_ofs, 47);
+ rtc_set_memory(s, info_ofs, cylinders);
+ rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
+ rtc_set_memory(s, info_ofs + 2, heads);
+ rtc_set_memory(s, info_ofs + 3, 0xff);
+ rtc_set_memory(s, info_ofs + 4, 0xff);
+ rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
+ rtc_set_memory(s, info_ofs + 6, cylinders);
+ rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
+ rtc_set_memory(s, info_ofs + 8, sectors);
+}
+
+/* convert boot_device letter to something recognizable by the bios */
+static int boot_device2nibble(char boot_device)
+{
+ switch(boot_device) {
+ case 'a':
+ case 'b':
+ return 0x01; /* floppy boot */
+ case 'c':
+ return 0x02; /* hard drive boot */
+ case 'd':
+ return 0x03; /* CD-ROM boot */
+ case 'n':
+ return 0x04; /* Network boot */
+ }
+ return 0;
+}
+
+static int set_boot_dev(ISADevice *s, const char *boot_device, int fd_bootchk)
+{
+#define PC_MAX_BOOT_DEVICES 3
+ int nbds, bds[3] = { 0, };
+ int i;
+
+ nbds = strlen(boot_device);
+ if (nbds > PC_MAX_BOOT_DEVICES) {
+ error_report("Too many boot devices for PC");
+ return(1);
+ }
+ for (i = 0; i < nbds; i++) {
+ bds[i] = boot_device2nibble(boot_device[i]);
+ if (bds[i] == 0) {
+ error_report("Invalid boot device for PC: '%c'",
+ boot_device[i]);
+ return(1);
+ }
+ }
+ rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
+ rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
+ return(0);
+}
+
+static int pc_boot_set(void *opaque, const char *boot_device)
+{
+ return set_boot_dev(opaque, boot_device, 0);
+}
+
+typedef struct pc_cmos_init_late_arg {
+ ISADevice *rtc_state;
+ BusState *idebus[2];
+} pc_cmos_init_late_arg;
+
+static void pc_cmos_init_late(void *opaque)
+{
+ pc_cmos_init_late_arg *arg = opaque;
+ ISADevice *s = arg->rtc_state;
+ int16_t cylinders;
+ int8_t heads, sectors;
+ int val;
+ int i, trans;
+
+ val = 0;
+ if (ide_get_geometry(arg->idebus[0], 0,
+ &cylinders, &heads, &sectors) >= 0) {
+ cmos_init_hd(s, 0x19, 0x1b, cylinders, heads, sectors);
+ val |= 0xf0;
+ }
+ if (ide_get_geometry(arg->idebus[0], 1,
+ &cylinders, &heads, &sectors) >= 0) {
+ cmos_init_hd(s, 0x1a, 0x24, cylinders, heads, sectors);
+ val |= 0x0f;
+ }
+ rtc_set_memory(s, 0x12, val);
+
+ val = 0;
+ for (i = 0; i < 4; i++) {
+ /* NOTE: ide_get_geometry() returns the physical
+ geometry. It is always such that: 1 <= sects <= 63, 1
+ <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
+ geometry can be different if a translation is done. */
+ if (ide_get_geometry(arg->idebus[i / 2], i % 2,
+ &cylinders, &heads, &sectors) >= 0) {
+ trans = ide_get_bios_chs_trans(arg->idebus[i / 2], i % 2) - 1;
+ assert((trans & ~3) == 0);
+ val |= trans << (i * 2);
+ }
+ }
+ rtc_set_memory(s, 0x39, val);
+
+ qemu_unregister_reset(pc_cmos_init_late, opaque);
+}
+
+void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
+ const char *boot_device,
+ ISADevice *floppy, BusState *idebus0, BusState *idebus1,
+ ISADevice *s)
+{
+ int val, nb, i;
+ FDriveType fd_type[2] = { FDRIVE_DRV_NONE, FDRIVE_DRV_NONE };
+ static pc_cmos_init_late_arg arg;
+
+ /* various important CMOS locations needed by PC/Bochs bios */
+
+ /* memory size */
+ /* base memory (first MiB) */
+ val = MIN(ram_size / 1024, 640);
+ rtc_set_memory(s, 0x15, val);
+ rtc_set_memory(s, 0x16, val >> 8);
+ /* extended memory (next 64MiB) */
+ if (ram_size > 1024 * 1024) {
+ val = (ram_size - 1024 * 1024) / 1024;
+ } else {
+ val = 0;
+ }
+ if (val > 65535)
+ val = 65535;
+ rtc_set_memory(s, 0x17, val);
+ rtc_set_memory(s, 0x18, val >> 8);
+ rtc_set_memory(s, 0x30, val);
+ rtc_set_memory(s, 0x31, val >> 8);
+ /* memory between 16MiB and 4GiB */
+ if (ram_size > 16 * 1024 * 1024) {
+ val = (ram_size - 16 * 1024 * 1024) / 65536;
+ } else {
+ val = 0;
+ }
+ if (val > 65535)
+ val = 65535;
+ rtc_set_memory(s, 0x34, val);
+ rtc_set_memory(s, 0x35, val >> 8);
+ /* memory above 4GiB */
+ val = above_4g_mem_size / 65536;
+ rtc_set_memory(s, 0x5b, val);
+ rtc_set_memory(s, 0x5c, val >> 8);
+ rtc_set_memory(s, 0x5d, val >> 16);
+
+ /* set the number of CPU */
+ rtc_set_memory(s, 0x5f, smp_cpus - 1);
+
+ /* set boot devices, and disable floppy signature check if requested */
+ if (set_boot_dev(s, boot_device, fd_bootchk)) {
+ exit(1);
+ }
+
+ /* floppy type */
+ if (floppy) {
+ for (i = 0; i < 2; i++) {
+ fd_type[i] = isa_fdc_get_drive_type(floppy, i);
+ }
+ }
+ val = (cmos_get_fd_drive_type(fd_type[0]) << 4) |
+ cmos_get_fd_drive_type(fd_type[1]);
+ rtc_set_memory(s, 0x10, val);
+
+ val = 0;
+ nb = 0;
+ if (fd_type[0] < FDRIVE_DRV_NONE) {
+ nb++;
+ }
+ if (fd_type[1] < FDRIVE_DRV_NONE) {
+ nb++;
+ }
+ switch (nb) {
+ case 0:
+ break;
+ case 1:
+ val |= 0x01; /* 1 drive, ready for boot */
+ break;
+ case 2:
+ val |= 0x41; /* 2 drives, ready for boot */
+ break;
+ }
+ val |= 0x02; /* FPU is there */
+ val |= 0x04; /* PS/2 mouse installed */
+ rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
+
+ /* hard drives */
+ arg.rtc_state = s;
+ arg.idebus[0] = idebus0;
+ arg.idebus[1] = idebus1;
+ qemu_register_reset(pc_cmos_init_late, &arg);
+}
+
+/* port 92 stuff: could be split off */
+typedef struct Port92State {
+ ISADevice dev;
+ MemoryRegion io;
+ uint8_t outport;
+ qemu_irq *a20_out;
+} Port92State;
+
+static void port92_write(void *opaque, hwaddr addr, uint64_t val,
+ unsigned size)
+{
+ Port92State *s = opaque;
+
+ DPRINTF("port92: write 0x%02x\n", val);
+ s->outport = val;
+ qemu_set_irq(*s->a20_out, (val >> 1) & 1);
+ if (val & 1) {
+ qemu_system_reset_request();
+ }
+}
+
+static uint64_t port92_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ Port92State *s = opaque;
+ uint32_t ret;
+
+ ret = s->outport;
+ DPRINTF("port92: read 0x%02x\n", ret);
+ return ret;
+}
+
+static void port92_init(ISADevice *dev, qemu_irq *a20_out)
+{
+ Port92State *s = DO_UPCAST(Port92State, dev, dev);
+
+ s->a20_out = a20_out;
+}
+
+static const VMStateDescription vmstate_port92_isa = {
+ .name = "port92",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField []) {
+ VMSTATE_UINT8(outport, Port92State),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void port92_reset(DeviceState *d)
+{
+ Port92State *s = container_of(d, Port92State, dev.qdev);
+
+ s->outport &= ~1;
+}
+
+static const MemoryRegionOps port92_ops = {
+ .read = port92_read,
+ .write = port92_write,
+ .impl = {
+ .min_access_size = 1,
+ .max_access_size = 1,
+ },
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static int port92_initfn(ISADevice *dev)
+{
+ Port92State *s = DO_UPCAST(Port92State, dev, dev);
+
+ memory_region_init_io(&s->io, &port92_ops, s, "port92", 1);
+ isa_register_ioport(dev, &s->io, 0x92);
+
+ s->outport = 0;
+ return 0;
+}
+
+static void port92_class_initfn(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ ISADeviceClass *ic = ISA_DEVICE_CLASS(klass);
+ ic->init = port92_initfn;
+ dc->no_user = 1;
+ dc->reset = port92_reset;
+ dc->vmsd = &vmstate_port92_isa;
+}
+
+static const TypeInfo port92_info = {
+ .name = "port92",
+ .parent = TYPE_ISA_DEVICE,
+ .instance_size = sizeof(Port92State),
+ .class_init = port92_class_initfn,
+};
+
+static void port92_register_types(void)
+{
+ type_register_static(&port92_info);
+}
+
+type_init(port92_register_types)
+
+static void handle_a20_line_change(void *opaque, int irq, int level)
+{
+ X86CPU *cpu = opaque;
+
+ /* XXX: send to all CPUs ? */
+ /* XXX: add logic to handle multiple A20 line sources */
+ x86_cpu_set_a20(cpu, level);
+}
+
+int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
+{
+ int index = le32_to_cpu(e820_table.count);
+ struct e820_entry *entry;
+
+ if (index >= E820_NR_ENTRIES)
+ return -EBUSY;
+ entry = &e820_table.entry[index++];
+
+ entry->address = cpu_to_le64(address);
+ entry->length = cpu_to_le64(length);
+ entry->type = cpu_to_le32(type);
+
+ e820_table.count = cpu_to_le32(index);
+ return index;
+}
+
+/* Calculates the limit to CPU APIC ID values
+ *
+ * This function returns the limit for the APIC ID value, so that all
+ * CPU APIC IDs are < pc_apic_id_limit().
+ *
+ * This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
+ */
+static unsigned int pc_apic_id_limit(unsigned int max_cpus)
+{
+ return x86_cpu_apic_id_from_index(max_cpus - 1) + 1;
+}
+
+static void *bochs_bios_init(void)
+{
+ void *fw_cfg;
+ uint8_t *smbios_table;
+ size_t smbios_len;
+ uint64_t *numa_fw_cfg;
+ int i, j;
+ unsigned int apic_id_limit = pc_apic_id_limit(max_cpus);
+
+ fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
+ /* FW_CFG_MAX_CPUS is a bit confusing/problematic on x86:
+ *
+ * SeaBIOS needs FW_CFG_MAX_CPUS for CPU hotplug, but the CPU hotplug
+ * QEMU<->SeaBIOS interface is not based on the "CPU index", but on the APIC
+ * ID of hotplugged CPUs[1]. This means that FW_CFG_MAX_CPUS is not the
+ * "maximum number of CPUs", but the "limit to the APIC ID values SeaBIOS
+ * may see".
+ *
+ * So, this means we must not use max_cpus, here, but the maximum possible
+ * APIC ID value, plus one.
+ *
+ * [1] The only kind of "CPU identifier" used between SeaBIOS and QEMU is
+ * the APIC ID, not the "CPU index"
+ */
+ fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)apic_id_limit);
+ fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
+ fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
+ fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES,
+ acpi_tables, acpi_tables_len);
+ fw_cfg_add_i32(fw_cfg, FW_CFG_IRQ0_OVERRIDE, kvm_allows_irq0_override());
+
+ smbios_table = smbios_get_table(&smbios_len);
+ if (smbios_table)
+ fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES,
+ smbios_table, smbios_len);
+ fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE,
+ &e820_table, sizeof(e820_table));
+
+ fw_cfg_add_bytes(fw_cfg, FW_CFG_HPET, &hpet_cfg, sizeof(hpet_cfg));
+ /* allocate memory for the NUMA channel: one (64bit) word for the number
+ * of nodes, one word for each VCPU->node and one word for each node to
+ * hold the amount of memory.
+ */
+ numa_fw_cfg = g_new0(uint64_t, 1 + apic_id_limit + nb_numa_nodes);
+ numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
+ for (i = 0; i < max_cpus; i++) {
+ unsigned int apic_id = x86_cpu_apic_id_from_index(i);
+ assert(apic_id < apic_id_limit);
+ for (j = 0; j < nb_numa_nodes; j++) {
+ if (test_bit(i, node_cpumask[j])) {
+ numa_fw_cfg[apic_id + 1] = cpu_to_le64(j);
+ break;
+ }
+ }
+ }
+ for (i = 0; i < nb_numa_nodes; i++) {
+ numa_fw_cfg[apic_id_limit + 1 + i] = cpu_to_le64(node_mem[i]);
+ }
+ fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, numa_fw_cfg,
+ (1 + apic_id_limit + nb_numa_nodes) *
+ sizeof(*numa_fw_cfg));
+
+ return fw_cfg;
+}
+
+static long get_file_size(FILE *f)
+{
+ long where, size;
+
+ /* XXX: on Unix systems, using fstat() probably makes more sense */
+
+ where = ftell(f);
+ fseek(f, 0, SEEK_END);
+ size = ftell(f);
+ fseek(f, where, SEEK_SET);
+
+ return size;
+}
+
+static void load_linux(void *fw_cfg,
+ const char *kernel_filename,
+ const char *initrd_filename,
+ const char *kernel_cmdline,
+ hwaddr max_ram_size)
+{
+ uint16_t protocol;
+ int setup_size, kernel_size, initrd_size = 0, cmdline_size;
+ uint32_t initrd_max;
+ uint8_t header[8192], *setup, *kernel, *initrd_data;
+ hwaddr real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
+ FILE *f;
+ char *vmode;
+
+ /* Align to 16 bytes as a paranoia measure */
+ cmdline_size = (strlen(kernel_cmdline)+16) & ~15;
+
+ /* load the kernel header */
+ f = fopen(kernel_filename, "rb");
+ if (!f || !(kernel_size = get_file_size(f)) ||
+ fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) !=
+ MIN(ARRAY_SIZE(header), kernel_size)) {
+ fprintf(stderr, "qemu: could not load kernel '%s': %s\n",
+ kernel_filename, strerror(errno));
+ exit(1);
+ }
+
+ /* kernel protocol version */
+#if 0
+ fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
+#endif
+ if (ldl_p(header+0x202) == 0x53726448)
+ protocol = lduw_p(header+0x206);
+ else {
+ /* This looks like a multiboot kernel. If it is, let's stop
+ treating it like a Linux kernel. */
+ if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
+ kernel_cmdline, kernel_size, header))
+ return;
+ protocol = 0;
+ }
+
+ if (protocol < 0x200 || !(header[0x211] & 0x01)) {
+ /* Low kernel */
+ real_addr = 0x90000;
+ cmdline_addr = 0x9a000 - cmdline_size;
+ prot_addr = 0x10000;
+ } else if (protocol < 0x202) {
+ /* High but ancient kernel */
+ real_addr = 0x90000;
+ cmdline_addr = 0x9a000 - cmdline_size;
+ prot_addr = 0x100000;
+ } else {
+ /* High and recent kernel */
+ real_addr = 0x10000;
+ cmdline_addr = 0x20000;
+ prot_addr = 0x100000;
+ }
+
+#if 0
+ fprintf(stderr,
+ "qemu: real_addr = 0x" TARGET_FMT_plx "\n"
+ "qemu: cmdline_addr = 0x" TARGET_FMT_plx "\n"
+ "qemu: prot_addr = 0x" TARGET_FMT_plx "\n",
+ real_addr,
+ cmdline_addr,
+ prot_addr);
+#endif
+
+ /* highest address for loading the initrd */
+ if (protocol >= 0x203)
+ initrd_max = ldl_p(header+0x22c);
+ else
+ initrd_max = 0x37ffffff;
+
+ if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
+ initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
+
+ fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr);
+ fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
+ fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, kernel_cmdline);
+
+ if (protocol >= 0x202) {
+ stl_p(header+0x228, cmdline_addr);
+ } else {
+ stw_p(header+0x20, 0xA33F);
+ stw_p(header+0x22, cmdline_addr-real_addr);
+ }
+
+ /* handle vga= parameter */
+ vmode = strstr(kernel_cmdline, "vga=");
+ if (vmode) {
+ unsigned int video_mode;
+ /* skip "vga=" */
+ vmode += 4;
+ if (!strncmp(vmode, "normal", 6)) {
+ video_mode = 0xffff;
+ } else if (!strncmp(vmode, "ext", 3)) {
+ video_mode = 0xfffe;
+ } else if (!strncmp(vmode, "ask", 3)) {
+ video_mode = 0xfffd;
+ } else {
+ video_mode = strtol(vmode, NULL, 0);
+ }
+ stw_p(header+0x1fa, video_mode);
+ }
+
+ /* loader type */
+ /* High nybble = B reserved for QEMU; low nybble is revision number.
+ If this code is substantially changed, you may want to consider
+ incrementing the revision. */
+ if (protocol >= 0x200)
+ header[0x210] = 0xB0;
+
+ /* heap */
+ if (protocol >= 0x201) {
+ header[0x211] |= 0x80; /* CAN_USE_HEAP */
+ stw_p(header+0x224, cmdline_addr-real_addr-0x200);
+ }
+
+ /* load initrd */
+ if (initrd_filename) {
+ if (protocol < 0x200) {
+ fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
+ exit(1);
+ }
+
+ initrd_size = get_image_size(initrd_filename);
+ if (initrd_size < 0) {
+ fprintf(stderr, "qemu: error reading initrd %s\n",
+ initrd_filename);
+ exit(1);
+ }
+
+ initrd_addr = (initrd_max-initrd_size) & ~4095;
+
+ initrd_data = g_malloc(initrd_size);
+ load_image(initrd_filename, initrd_data);
+
+ fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
+ fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
+ fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size);
+
+ stl_p(header+0x218, initrd_addr);
+ stl_p(header+0x21c, initrd_size);
+ }
+
+ /* load kernel and setup */
+ setup_size = header[0x1f1];
+ if (setup_size == 0)
+ setup_size = 4;
+ setup_size = (setup_size+1)*512;
+ kernel_size -= setup_size;
+
+ setup = g_malloc(setup_size);
+ kernel = g_malloc(kernel_size);
+ fseek(f, 0, SEEK_SET);
+ if (fread(setup, 1, setup_size, f) != setup_size) {
+ fprintf(stderr, "fread() failed\n");
+ exit(1);
+ }
+ if (fread(kernel, 1, kernel_size, f) != kernel_size) {
+ fprintf(stderr, "fread() failed\n");
+ exit(1);
+ }
+ fclose(f);
+ memcpy(setup, header, MIN(sizeof(header), setup_size));
+
+ fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr);
+ fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
+ fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size);
+
+ fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr);
+ fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size);
+ fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size);
+
+ option_rom[nb_option_roms].name = "linuxboot.bin";
+ option_rom[nb_option_roms].bootindex = 0;
+ nb_option_roms++;
+}
+
+#define NE2000_NB_MAX 6
+
+static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360,
+ 0x280, 0x380 };
+static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
+
+static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
+static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
+
+void pc_init_ne2k_isa(ISABus *bus, NICInfo *nd)
+{
+ static int nb_ne2k = 0;
+
+ if (nb_ne2k == NE2000_NB_MAX)
+ return;
+ isa_ne2000_init(bus, ne2000_io[nb_ne2k],
+ ne2000_irq[nb_ne2k], nd);
+ nb_ne2k++;
+}
+
+DeviceState *cpu_get_current_apic(void)
+{
+ if (cpu_single_env) {
+ return cpu_single_env->apic_state;
+ } else {
+ return NULL;
+ }
+}
+
+void pc_acpi_smi_interrupt(void *opaque, int irq, int level)
+{
+ CPUX86State *s = opaque;
+
+ if (level) {
+ cpu_interrupt(s, CPU_INTERRUPT_SMI);
+ }
+}
+
+void pc_cpus_init(const char *cpu_model)
+{
+ int i;
+
+ /* init CPUs */
+ if (cpu_model == NULL) {
+#ifdef TARGET_X86_64
+ cpu_model = "qemu64";
+#else
+ cpu_model = "qemu32";
+#endif
+ }
+
+ for (i = 0; i < smp_cpus; i++) {
+ if (!cpu_x86_init(cpu_model)) {
+ exit(1);
+ }
+ }
+}
+
+void pc_acpi_init(const char *default_dsdt)
+{
+ char *filename = NULL, *arg = NULL;
+
+ if (acpi_tables != NULL) {
+ /* manually set via -acpitable, leave it alone */
+ return;
+ }
+
+ filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, default_dsdt);
+ if (filename == NULL) {
+ fprintf(stderr, "WARNING: failed to find %s\n", default_dsdt);
+ return;
+ }
+
+ arg = g_strdup_printf("file=%s", filename);
+ if (acpi_table_add(arg) != 0) {
+ fprintf(stderr, "WARNING: failed to load %s\n", filename);
+ }
+ g_free(arg);
+ g_free(filename);
+}
+
+void *pc_memory_init(MemoryRegion *system_memory,
+ const char *kernel_filename,
+ const char *kernel_cmdline,
+ const char *initrd_filename,
+ ram_addr_t below_4g_mem_size,
+ ram_addr_t above_4g_mem_size,
+ MemoryRegion *rom_memory,
+ MemoryRegion **ram_memory)
+{
+ int linux_boot, i;
+ MemoryRegion *ram, *option_rom_mr;
+ MemoryRegion *ram_below_4g, *ram_above_4g;
+ void *fw_cfg;
+
+ linux_boot = (kernel_filename != NULL);
+
+ /* Allocate RAM. We allocate it as a single memory region and use
+ * aliases to address portions of it, mostly for backwards compatibility
+ * with older qemus that used qemu_ram_alloc().
+ */
+ ram = g_malloc(sizeof(*ram));
+ memory_region_init_ram(ram, "pc.ram",
+ below_4g_mem_size + above_4g_mem_size);
+ vmstate_register_ram_global(ram);
+ *ram_memory = ram;
+ ram_below_4g = g_malloc(sizeof(*ram_below_4g));
+ memory_region_init_alias(ram_below_4g, "ram-below-4g", ram,
+ 0, below_4g_mem_size);
+ memory_region_add_subregion(system_memory, 0, ram_below_4g);
+ if (above_4g_mem_size > 0) {
+ ram_above_4g = g_malloc(sizeof(*ram_above_4g));
+ memory_region_init_alias(ram_above_4g, "ram-above-4g", ram,
+ below_4g_mem_size, above_4g_mem_size);
+ memory_region_add_subregion(system_memory, 0x100000000ULL,
+ ram_above_4g);
+ }
+
+
+ /* Initialize PC system firmware */
+ pc_system_firmware_init(rom_memory);
+
+ option_rom_mr = g_malloc(sizeof(*option_rom_mr));
+ memory_region_init_ram(option_rom_mr, "pc.rom", PC_ROM_SIZE);
+ vmstate_register_ram_global(option_rom_mr);
+ memory_region_add_subregion_overlap(rom_memory,
+ PC_ROM_MIN_VGA,
+ option_rom_mr,
+ 1);
+
+ fw_cfg = bochs_bios_init();
+ rom_set_fw(fw_cfg);
+
+ if (linux_boot) {
+ load_linux(fw_cfg, kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size);
+ }
+
+ for (i = 0; i < nb_option_roms; i++) {
+ rom_add_option(option_rom[i].name, option_rom[i].bootindex);
+ }
+ return fw_cfg;
+}
+
+qemu_irq *pc_allocate_cpu_irq(void)
+{
+ return qemu_allocate_irqs(pic_irq_request, NULL, 1);
+}
+
+DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus)
+{
+ DeviceState *dev = NULL;
+
+ if (pci_bus) {
+ PCIDevice *pcidev = pci_vga_init(pci_bus);
+ dev = pcidev ? &pcidev->qdev : NULL;
+ } else if (isa_bus) {
+ ISADevice *isadev = isa_vga_init(isa_bus);
+ dev = isadev ? &isadev->qdev : NULL;
+ }
+ return dev;
+}
+
+static void cpu_request_exit(void *opaque, int irq, int level)
+{
+ CPUX86State *env = cpu_single_env;
+
+ if (env && level) {
+ cpu_exit(env);
+ }
+}
+
+static const MemoryRegionOps ioport80_io_ops = {
+ .write = ioport80_write,
+ .read = ioport80_read,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .impl = {
+ .min_access_size = 1,
+ .max_access_size = 1,
+ },
+};
+
+static const MemoryRegionOps ioportF0_io_ops = {
+ .write = ioportF0_write,
+ .read = ioportF0_read,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .impl = {
+ .min_access_size = 1,
+ .max_access_size = 1,
+ },
+};
+
+void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
+ ISADevice **rtc_state,
+ ISADevice **floppy,
+ bool no_vmport)
+{
+ int i;
+ DriveInfo *fd[MAX_FD];
+ DeviceState *hpet = NULL;
+ int pit_isa_irq = 0;
+ qemu_irq pit_alt_irq = NULL;
+ qemu_irq rtc_irq = NULL;
+ qemu_irq *a20_line;
+ ISADevice *i8042, *port92, *vmmouse, *pit = NULL;
+ qemu_irq *cpu_exit_irq;
+ MemoryRegion *ioport80_io = g_new(MemoryRegion, 1);
+ MemoryRegion *ioportF0_io = g_new(MemoryRegion, 1);
+
+ memory_region_init_io(ioport80_io, &ioport80_io_ops, NULL, "ioport80", 1);
+ memory_region_add_subregion(isa_bus->address_space_io, 0x80, ioport80_io);
+
+ memory_region_init_io(ioportF0_io, &ioportF0_io_ops, NULL, "ioportF0", 1);
+ memory_region_add_subregion(isa_bus->address_space_io, 0xf0, ioportF0_io);
+
+ /*
+ * Check if an HPET shall be created.
+ *
+ * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT
+ * when the HPET wants to take over. Thus we have to disable the latter.
+ */
+ if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) {
+ hpet = sysbus_try_create_simple("hpet", HPET_BASE, NULL);
+
+ if (hpet) {
+ for (i = 0; i < GSI_NUM_PINS; i++) {
+ sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]);
+ }
+ pit_isa_irq = -1;
+ pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT);
+ rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT);
+ }
+ }
+ *rtc_state = rtc_init(isa_bus, 2000, rtc_irq);
+
+ qemu_register_boot_set(pc_boot_set, *rtc_state);
+
+ if (!xen_enabled()) {
+ if (kvm_irqchip_in_kernel()) {
+ pit = kvm_pit_init(isa_bus, 0x40);
+ } else {
+ pit = pit_init(isa_bus, 0x40, pit_isa_irq, pit_alt_irq);
+ }
+ if (hpet) {
+ /* connect PIT to output control line of the HPET */
+ qdev_connect_gpio_out(hpet, 0, qdev_get_gpio_in(&pit->qdev, 0));
+ }
+ pcspk_init(isa_bus, pit);
+ }
+
+ for(i = 0; i < MAX_SERIAL_PORTS; i++) {
+ if (serial_hds[i]) {
+ serial_isa_init(isa_bus, i, serial_hds[i]);
+ }
+ }
+
+ for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
+ if (parallel_hds[i]) {
+ parallel_init(isa_bus, i, parallel_hds[i]);
+ }
+ }
+
+ a20_line = qemu_allocate_irqs(handle_a20_line_change,
+ x86_env_get_cpu(first_cpu), 2);
+ i8042 = isa_create_simple(isa_bus, "i8042");
+ i8042_setup_a20_line(i8042, &a20_line[0]);
+ if (!no_vmport) {
+ vmport_init(isa_bus);
+ vmmouse = isa_try_create(isa_bus, "vmmouse");
+ } else {
+ vmmouse = NULL;
+ }
+ if (vmmouse) {
+ qdev_prop_set_ptr(&vmmouse->qdev, "ps2_mouse", i8042);
+ qdev_init_nofail(&vmmouse->qdev);
+ }
+ port92 = isa_create_simple(isa_bus, "port92");
+ port92_init(port92, &a20_line[1]);
+
+ cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
+ DMA_init(0, cpu_exit_irq);
+
+ for(i = 0; i < MAX_FD; i++) {
+ fd[i] = drive_get(IF_FLOPPY, 0, i);
+ }
+ *floppy = fdctrl_init_isa(isa_bus, fd);
+}
+
+void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus)
+{
+ int i;
+
+ for (i = 0; i < nb_nics; i++) {
+ NICInfo *nd = &nd_table[i];
+
+ if (!pci_bus || (nd->model && strcmp(nd->model, "ne2k_isa") == 0)) {
+ pc_init_ne2k_isa(isa_bus, nd);
+ } else {
+ pci_nic_init_nofail(nd, "e1000", NULL);
+ }
+ }
+}
+
+void pc_pci_device_init(PCIBus *pci_bus)
+{
+ int max_bus;
+ int bus;
+
+ max_bus = drive_get_max_bus(IF_SCSI);
+ for (bus = 0; bus <= max_bus; bus++) {
+ pci_create_simple(pci_bus, -1, "lsi53c895a");
+ }
+}
+
+void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name)
+{
+ DeviceState *dev;
+ SysBusDevice *d;
+ unsigned int i;
+
+ if (kvm_irqchip_in_kernel()) {
+ dev = qdev_create(NULL, "kvm-ioapic");
+ } else {
+ dev = qdev_create(NULL, "ioapic");
+ }
+ if (parent_name) {
+ object_property_add_child(object_resolve_path(parent_name, NULL),
+ "ioapic", OBJECT(dev), NULL);
+ }
+ qdev_init_nofail(dev);
+ d = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(d, 0, 0xfec00000);
+
+ for (i = 0; i < IOAPIC_NUM_PINS; i++) {
+ gsi_state->ioapic_irq[i] = qdev_get_gpio_in(dev, i);
+ }
+}
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
new file mode 100644
index 0000000000..0ee3b3b806
--- /dev/null
+++ b/hw/i386/pc_piix.c
@@ -0,0 +1,717 @@
+/*
+ * QEMU PC System Emulator
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * 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 <glib.h>
+
+#include "hw/hw.h"
+#include "hw/pc.h"
+#include "hw/apic.h"
+#include "hw/pci/pci.h"
+#include "hw/pci/pci_ids.h"
+#include "hw/usb.h"
+#include "net/net.h"
+#include "hw/boards.h"
+#include "hw/ide.h"
+#include "sysemu/kvm.h"
+#include "hw/kvm/clock.h"
+#include "sysemu/sysemu.h"
+#include "hw/sysbus.h"
+#include "sysemu/arch_init.h"
+#include "sysemu/blockdev.h"
+#include "hw/smbus.h"
+#include "hw/xen.h"
+#include "exec/memory.h"
+#include "exec/address-spaces.h"
+#include "cpu.h"
+#ifdef CONFIG_XEN
+# include <xen/hvm/hvm_info_table.h>
+#endif
+
+#define MAX_IDE_BUS 2
+
+static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
+static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
+static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
+
+/* PC hardware initialisation */
+static void pc_init1(MemoryRegion *system_memory,
+ MemoryRegion *system_io,
+ 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,
+ int pci_enabled,
+ int kvmclock_enabled)
+{
+ int i;
+ ram_addr_t below_4g_mem_size, above_4g_mem_size;
+ PCIBus *pci_bus;
+ ISABus *isa_bus;
+ PCII440FXState *i440fx_state;
+ int piix3_devfn = -1;
+ qemu_irq *cpu_irq;
+ qemu_irq *gsi;
+ qemu_irq *i8259;
+ qemu_irq *smi_irq;
+ GSIState *gsi_state;
+ DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
+ BusState *idebus[MAX_IDE_BUS];
+ ISADevice *rtc_state;
+ ISADevice *floppy;
+ MemoryRegion *ram_memory;
+ MemoryRegion *pci_memory;
+ MemoryRegion *rom_memory;
+ void *fw_cfg = NULL;
+
+ pc_cpus_init(cpu_model);
+ pc_acpi_init("acpi-dsdt.aml");
+
+ if (kvmclock_enabled) {
+ kvmclock_create();
+ }
+
+ if (ram_size >= 0xe0000000 ) {
+ above_4g_mem_size = ram_size - 0xe0000000;
+ below_4g_mem_size = 0xe0000000;
+ } else {
+ above_4g_mem_size = 0;
+ below_4g_mem_size = ram_size;
+ }
+
+ if (pci_enabled) {
+ pci_memory = g_new(MemoryRegion, 1);
+ memory_region_init(pci_memory, "pci", INT64_MAX);
+ rom_memory = pci_memory;
+ } else {
+ pci_memory = NULL;
+ rom_memory = system_memory;
+ }
+
+ /* allocate ram and load rom/bios */
+ if (!xen_enabled()) {
+ fw_cfg = pc_memory_init(system_memory,
+ kernel_filename, kernel_cmdline, initrd_filename,
+ below_4g_mem_size, above_4g_mem_size,
+ rom_memory, &ram_memory);
+ }
+
+ gsi_state = g_malloc0(sizeof(*gsi_state));
+ if (kvm_irqchip_in_kernel()) {
+ kvm_pc_setup_irq_routing(pci_enabled);
+ gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
+ GSI_NUM_PINS);
+ } else {
+ gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
+ }
+
+ if (pci_enabled) {
+ pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, &isa_bus, gsi,
+ system_memory, system_io, ram_size,
+ below_4g_mem_size,
+ 0x100000000ULL - below_4g_mem_size,
+ 0x100000000ULL + above_4g_mem_size,
+ (sizeof(hwaddr) == 4
+ ? 0
+ : ((uint64_t)1 << 62)),
+ pci_memory, ram_memory);
+ } else {
+ pci_bus = NULL;
+ i440fx_state = NULL;
+ isa_bus = isa_bus_new(NULL, system_io);
+ no_hpet = 1;
+ }
+ isa_bus_irqs(isa_bus, gsi);
+
+ if (kvm_irqchip_in_kernel()) {
+ i8259 = kvm_i8259_init(isa_bus);
+ } else if (xen_enabled()) {
+ i8259 = xen_interrupt_controller_init();
+ } else {
+ cpu_irq = pc_allocate_cpu_irq();
+ i8259 = i8259_init(isa_bus, cpu_irq[0]);
+ }
+
+ for (i = 0; i < ISA_NUM_IRQS; i++) {
+ gsi_state->i8259_irq[i] = i8259[i];
+ }
+ if (pci_enabled) {
+ ioapic_init_gsi(gsi_state, "i440fx");
+ }
+
+ pc_register_ferr_irq(gsi[13]);
+
+ pc_vga_init(isa_bus, pci_enabled ? pci_bus : NULL);
+ if (xen_enabled()) {
+ pci_create_simple(pci_bus, -1, "xen-platform");
+ }
+
+ /* init basic PC hardware */
+ pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, xen_enabled());
+
+ pc_nic_init(isa_bus, pci_bus);
+
+ ide_drive_get(hd, MAX_IDE_BUS);
+ if (pci_enabled) {
+ PCIDevice *dev;
+ if (xen_enabled()) {
+ dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1);
+ } else {
+ dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
+ }
+ idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
+ idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
+ } else {
+ for(i = 0; i < MAX_IDE_BUS; i++) {
+ ISADevice *dev;
+ dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i],
+ ide_irq[i],
+ hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
+ idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
+ }
+ }
+
+ audio_init(isa_bus, pci_enabled ? pci_bus : NULL);
+
+ pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
+ floppy, idebus[0], idebus[1], rtc_state);
+
+ if (pci_enabled && usb_enabled(false)) {
+ pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci");
+ }
+
+ if (pci_enabled && acpi_enabled) {
+ i2c_bus *smbus;
+
+ smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
+ /* TODO: Populate SPD eeprom data. */
+ smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
+ gsi[9], *smi_irq,
+ kvm_enabled(), fw_cfg);
+ smbus_eeprom_init(smbus, 8, NULL, 0);
+ }
+
+ if (pci_enabled) {
+ pc_pci_device_init(pci_bus);
+ }
+}
+
+static void pc_init_pci(QEMUMachineInitArgs *args)
+{
+ ram_addr_t ram_size = args->ram_size;
+ const char *cpu_model = args->cpu_model;
+ const char *kernel_filename = args->kernel_filename;
+ const char *kernel_cmdline = args->kernel_cmdline;
+ const char *initrd_filename = args->initrd_filename;
+ const char *boot_device = args->boot_device;
+ pc_init1(get_system_memory(),
+ get_system_io(),
+ ram_size, boot_device,
+ kernel_filename, kernel_cmdline,
+ initrd_filename, cpu_model, 1, 1);
+}
+
+static void pc_init_pci_1_3(QEMUMachineInitArgs *args)
+{
+ enable_compat_apic_id_mode();
+ pc_init_pci(args);
+}
+
+/* PC machine init function for pc-0.14 to pc-1.2 */
+static void pc_init_pci_1_2(QEMUMachineInitArgs *args)
+{
+ disable_kvm_pv_eoi();
+ pc_init_pci_1_3(args);
+}
+
+/* PC init function for pc-0.10 to pc-0.13, and reused by xenfv */
+static void pc_init_pci_no_kvmclock(QEMUMachineInitArgs *args)
+{
+ ram_addr_t ram_size = args->ram_size;
+ const char *cpu_model = args->cpu_model;
+ const char *kernel_filename = args->kernel_filename;
+ const char *kernel_cmdline = args->kernel_cmdline;
+ const char *initrd_filename = args->initrd_filename;
+ const char *boot_device = args->boot_device;
+ disable_kvm_pv_eoi();
+ enable_compat_apic_id_mode();
+ pc_init1(get_system_memory(),
+ get_system_io(),
+ ram_size, boot_device,
+ kernel_filename, kernel_cmdline,
+ initrd_filename, cpu_model, 1, 0);
+}
+
+static void pc_init_isa(QEMUMachineInitArgs *args)
+{
+ ram_addr_t ram_size = args->ram_size;
+ const char *cpu_model = args->cpu_model;
+ const char *kernel_filename = args->kernel_filename;
+ const char *kernel_cmdline = args->kernel_cmdline;
+ const char *initrd_filename = args->initrd_filename;
+ const char *boot_device = args->boot_device;
+ if (cpu_model == NULL)
+ cpu_model = "486";
+ disable_kvm_pv_eoi();
+ enable_compat_apic_id_mode();
+ pc_init1(get_system_memory(),
+ get_system_io(),
+ ram_size, boot_device,
+ kernel_filename, kernel_cmdline,
+ initrd_filename, cpu_model, 0, 1);
+}
+
+#ifdef CONFIG_XEN
+static void pc_xen_hvm_init(QEMUMachineInitArgs *args)
+{
+ if (xen_hvm_init() != 0) {
+ hw_error("xen hardware virtual machine initialisation failed");
+ }
+ pc_init_pci_no_kvmclock(args);
+ xen_vcpu_init();
+}
+#endif
+
+static QEMUMachine pc_i440fx_machine_v1_5 = {
+ .name = "pc-i440fx-1.5",
+ .alias = "pc",
+ .desc = "Standard PC (i440FX + PIIX, 1996)",
+ .init = pc_init_pci,
+ .max_cpus = 255,
+ .is_default = 1,
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static QEMUMachine pc_i440fx_machine_v1_4 = {
+ .name = "pc-i440fx-1.4",
+ .desc = "Standard PC (i440FX + PIIX, 1996)",
+ .init = pc_init_pci,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_1_4,
+ { /* end of list */ }
+ },
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+#define PC_COMPAT_1_3 \
+ PC_COMPAT_1_4, \
+ {\
+ .driver = "usb-tablet",\
+ .property = "usb_version",\
+ .value = stringify(1),\
+ },{\
+ .driver = "virtio-net-pci",\
+ .property = "ctrl_mac_addr",\
+ .value = "off", \
+ },{ \
+ .driver = "virtio-net-pci", \
+ .property = "mq", \
+ .value = "off", \
+ }, {\
+ .driver = "e1000",\
+ .property = "autonegotiation",\
+ .value = "off",\
+ }
+
+static QEMUMachine pc_machine_v1_3 = {
+ .name = "pc-1.3",
+ .desc = "Standard PC",
+ .init = pc_init_pci_1_3,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_1_3,
+ { /* end of list */ }
+ },
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+#define PC_COMPAT_1_2 \
+ PC_COMPAT_1_3,\
+ {\
+ .driver = "nec-usb-xhci",\
+ .property = "msi",\
+ .value = "off",\
+ },{\
+ .driver = "nec-usb-xhci",\
+ .property = "msix",\
+ .value = "off",\
+ },{\
+ .driver = "ivshmem",\
+ .property = "use64",\
+ .value = "0",\
+ },{\
+ .driver = "qxl",\
+ .property = "revision",\
+ .value = stringify(3),\
+ },{\
+ .driver = "qxl-vga",\
+ .property = "revision",\
+ .value = stringify(3),\
+ },{\
+ .driver = "VGA",\
+ .property = "mmio",\
+ .value = "off",\
+ }
+
+static QEMUMachine pc_machine_v1_2 = {
+ .name = "pc-1.2",
+ .desc = "Standard PC",
+ .init = pc_init_pci_1_2,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_1_2,
+ { /* end of list */ }
+ },
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+#define PC_COMPAT_1_1 \
+ PC_COMPAT_1_2,\
+ {\
+ .driver = "virtio-scsi-pci",\
+ .property = "hotplug",\
+ .value = "off",\
+ },{\
+ .driver = "virtio-scsi-pci",\
+ .property = "param_change",\
+ .value = "off",\
+ },{\
+ .driver = "VGA",\
+ .property = "vgamem_mb",\
+ .value = stringify(8),\
+ },{\
+ .driver = "vmware-svga",\
+ .property = "vgamem_mb",\
+ .value = stringify(8),\
+ },{\
+ .driver = "qxl-vga",\
+ .property = "vgamem_mb",\
+ .value = stringify(8),\
+ },{\
+ .driver = "qxl",\
+ .property = "vgamem_mb",\
+ .value = stringify(8),\
+ },{\
+ .driver = "virtio-blk-pci",\
+ .property = "config-wce",\
+ .value = "off",\
+ }
+
+static QEMUMachine pc_machine_v1_1 = {
+ .name = "pc-1.1",
+ .desc = "Standard PC",
+ .init = pc_init_pci_1_2,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_1_1,
+ { /* end of list */ }
+ },
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+#define PC_COMPAT_1_0 \
+ PC_COMPAT_1_1,\
+ {\
+ .driver = "pc-sysfw",\
+ .property = "rom_only",\
+ .value = stringify(1),\
+ }, {\
+ .driver = "isa-fdc",\
+ .property = "check_media_rate",\
+ .value = "off",\
+ }, {\
+ .driver = "virtio-balloon-pci",\
+ .property = "class",\
+ .value = stringify(PCI_CLASS_MEMORY_RAM),\
+ },{\
+ .driver = "apic",\
+ .property = "vapic",\
+ .value = "off",\
+ },{\
+ .driver = TYPE_USB_DEVICE,\
+ .property = "full-path",\
+ .value = "no",\
+ }
+
+static QEMUMachine pc_machine_v1_0 = {
+ .name = "pc-1.0",
+ .desc = "Standard PC",
+ .init = pc_init_pci_1_2,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_1_0,
+ { /* end of list */ }
+ },
+ .hw_version = "1.0",
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+#define PC_COMPAT_0_15 \
+ PC_COMPAT_1_0
+
+static QEMUMachine pc_machine_v0_15 = {
+ .name = "pc-0.15",
+ .desc = "Standard PC",
+ .init = pc_init_pci_1_2,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_15,
+ { /* end of list */ }
+ },
+ .hw_version = "0.15",
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+#define PC_COMPAT_0_14 \
+ PC_COMPAT_0_15,\
+ {\
+ .driver = "virtio-blk-pci",\
+ .property = "event_idx",\
+ .value = "off",\
+ },{\
+ .driver = "virtio-serial-pci",\
+ .property = "event_idx",\
+ .value = "off",\
+ },{\
+ .driver = "virtio-net-pci",\
+ .property = "event_idx",\
+ .value = "off",\
+ },{\
+ .driver = "virtio-balloon-pci",\
+ .property = "event_idx",\
+ .value = "off",\
+ }
+
+static QEMUMachine pc_machine_v0_14 = {
+ .name = "pc-0.14",
+ .desc = "Standard PC",
+ .init = pc_init_pci_1_2,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_14,
+ {
+ .driver = "qxl",
+ .property = "revision",
+ .value = stringify(2),
+ },{
+ .driver = "qxl-vga",
+ .property = "revision",
+ .value = stringify(2),
+ },
+ { /* end of list */ }
+ },
+ .hw_version = "0.14",
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+#define PC_COMPAT_0_13 \
+ PC_COMPAT_0_14,\
+ {\
+ .driver = TYPE_PCI_DEVICE,\
+ .property = "command_serr_enable",\
+ .value = "off",\
+ },{\
+ .driver = "AC97",\
+ .property = "use_broken_id",\
+ .value = stringify(1),\
+ }
+
+static QEMUMachine pc_machine_v0_13 = {
+ .name = "pc-0.13",
+ .desc = "Standard PC",
+ .init = pc_init_pci_no_kvmclock,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_13,
+ {
+ .driver = "virtio-9p-pci",
+ .property = "vectors",
+ .value = stringify(0),
+ },{
+ .driver = "VGA",
+ .property = "rombar",
+ .value = stringify(0),
+ },{
+ .driver = "vmware-svga",
+ .property = "rombar",
+ .value = stringify(0),
+ },
+ { /* end of list */ }
+ },
+ .hw_version = "0.13",
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+#define PC_COMPAT_0_12 \
+ PC_COMPAT_0_13,\
+ {\
+ .driver = "virtio-serial-pci",\
+ .property = "max_ports",\
+ .value = stringify(1),\
+ },{\
+ .driver = "virtio-serial-pci",\
+ .property = "vectors",\
+ .value = stringify(0),\
+ }
+
+static QEMUMachine pc_machine_v0_12 = {
+ .name = "pc-0.12",
+ .desc = "Standard PC",
+ .init = pc_init_pci_no_kvmclock,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_12,
+ {
+ .driver = "VGA",
+ .property = "rombar",
+ .value = stringify(0),
+ },{
+ .driver = "vmware-svga",
+ .property = "rombar",
+ .value = stringify(0),
+ },
+ { /* end of list */ }
+ },
+ .hw_version = "0.12",
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+#define PC_COMPAT_0_11 \
+ PC_COMPAT_0_12,\
+ {\
+ .driver = "virtio-blk-pci",\
+ .property = "vectors",\
+ .value = stringify(0),\
+ },{\
+ .driver = TYPE_PCI_DEVICE,\
+ .property = "rombar",\
+ .value = stringify(0),\
+ }
+
+static QEMUMachine pc_machine_v0_11 = {
+ .name = "pc-0.11",
+ .desc = "Standard PC, qemu 0.11",
+ .init = pc_init_pci_no_kvmclock,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_11,
+ {
+ .driver = "ide-drive",
+ .property = "ver",
+ .value = "0.11",
+ },{
+ .driver = "scsi-disk",
+ .property = "ver",
+ .value = "0.11",
+ },
+ { /* end of list */ }
+ },
+ .hw_version = "0.11",
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static QEMUMachine pc_machine_v0_10 = {
+ .name = "pc-0.10",
+ .desc = "Standard PC, qemu 0.10",
+ .init = pc_init_pci_no_kvmclock,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_11,
+ {
+ .driver = "virtio-blk-pci",
+ .property = "class",
+ .value = stringify(PCI_CLASS_STORAGE_OTHER),
+ },{
+ .driver = "virtio-serial-pci",
+ .property = "class",
+ .value = stringify(PCI_CLASS_DISPLAY_OTHER),
+ },{
+ .driver = "virtio-net-pci",
+ .property = "vectors",
+ .value = stringify(0),
+ },{
+ .driver = "ide-drive",
+ .property = "ver",
+ .value = "0.10",
+ },{
+ .driver = "scsi-disk",
+ .property = "ver",
+ .value = "0.10",
+ },
+ { /* end of list */ }
+ },
+ .hw_version = "0.10",
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static QEMUMachine isapc_machine = {
+ .name = "isapc",
+ .desc = "ISA-only PC",
+ .init = pc_init_isa,
+ .max_cpus = 1,
+ .compat_props = (GlobalProperty[]) {
+ {
+ .driver = "pc-sysfw",
+ .property = "rom_only",
+ .value = stringify(1),
+ },
+ { /* end of list */ }
+ },
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+#ifdef CONFIG_XEN
+static QEMUMachine xenfv_machine = {
+ .name = "xenfv",
+ .desc = "Xen Fully-virtualized PC",
+ .init = pc_xen_hvm_init,
+ .max_cpus = HVM_MAX_VCPUS,
+ .default_machine_opts = "accel=xen",
+ DEFAULT_MACHINE_OPTIONS,
+};
+#endif
+
+static void pc_machine_init(void)
+{
+ qemu_register_machine(&pc_i440fx_machine_v1_5);
+ qemu_register_machine(&pc_i440fx_machine_v1_4);
+ qemu_register_machine(&pc_machine_v1_3);
+ qemu_register_machine(&pc_machine_v1_2);
+ qemu_register_machine(&pc_machine_v1_1);
+ qemu_register_machine(&pc_machine_v1_0);
+ qemu_register_machine(&pc_machine_v0_15);
+ qemu_register_machine(&pc_machine_v0_14);
+ qemu_register_machine(&pc_machine_v0_13);
+ qemu_register_machine(&pc_machine_v0_12);
+ qemu_register_machine(&pc_machine_v0_11);
+ qemu_register_machine(&pc_machine_v0_10);
+ qemu_register_machine(&isapc_machine);
+#ifdef CONFIG_XEN
+ qemu_register_machine(&xenfv_machine);
+#endif
+}
+
+machine_init(pc_machine_init);
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
new file mode 100644
index 0000000000..4f5f347309
--- /dev/null
+++ b/hw/i386/pc_q35.c
@@ -0,0 +1,239 @@
+/*
+ * Q35 chipset based pc system emulator
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ * Copyright (c) 2009, 2010
+ * Isaku Yamahata <yamahata at valinux co jp>
+ * VA Linux Systems Japan K.K.
+ * Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
+ *
+ * This is based on pc.c, but heavily modified.
+ *
+ * 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 "hw/hw.h"
+#include "sysemu/arch_init.h"
+#include "hw/smbus.h"
+#include "hw/boards.h"
+#include "hw/mc146818rtc.h"
+#include "hw/xen.h"
+#include "sysemu/kvm.h"
+#include "hw/kvm/clock.h"
+#include "hw/q35.h"
+#include "exec/address-spaces.h"
+#include "hw/ich9.h"
+#include "hw/ide/pci.h"
+#include "hw/ide/ahci.h"
+#include "hw/usb.h"
+
+/* ICH9 AHCI has 6 ports */
+#define MAX_SATA_PORTS 6
+
+/* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
+ * BIOS will read it and start S3 resume at POST Entry */
+static void pc_cmos_set_s3_resume(void *opaque, int irq, int level)
+{
+ ISADevice *s = opaque;
+
+ if (level) {
+ rtc_set_memory(s, 0xF, 0xFE);
+ }
+}
+
+/* PC hardware initialisation */
+static void pc_q35_init(QEMUMachineInitArgs *args)
+{
+ ram_addr_t ram_size = args->ram_size;
+ const char *cpu_model = args->cpu_model;
+ const char *kernel_filename = args->kernel_filename;
+ const char *kernel_cmdline = args->kernel_cmdline;
+ const char *initrd_filename = args->initrd_filename;
+ const char *boot_device = args->boot_device;
+ ram_addr_t below_4g_mem_size, above_4g_mem_size;
+ Q35PCIHost *q35_host;
+ PCIBus *host_bus;
+ PCIDevice *lpc;
+ BusState *idebus[MAX_SATA_PORTS];
+ ISADevice *rtc_state;
+ ISADevice *floppy;
+ MemoryRegion *pci_memory;
+ MemoryRegion *rom_memory;
+ MemoryRegion *ram_memory;
+ GSIState *gsi_state;
+ ISABus *isa_bus;
+ int pci_enabled = 1;
+ qemu_irq *cpu_irq;
+ qemu_irq *gsi;
+ qemu_irq *i8259;
+ int i;
+ ICH9LPCState *ich9_lpc;
+ PCIDevice *ahci;
+ qemu_irq *cmos_s3;
+
+ pc_cpus_init(cpu_model);
+ pc_acpi_init("q35-acpi-dsdt.aml");
+
+ kvmclock_create();
+
+ if (ram_size >= 0xb0000000) {
+ above_4g_mem_size = ram_size - 0xb0000000;
+ below_4g_mem_size = 0xb0000000;
+ } else {
+ above_4g_mem_size = 0;
+ below_4g_mem_size = ram_size;
+ }
+
+ /* pci enabled */
+ if (pci_enabled) {
+ pci_memory = g_new(MemoryRegion, 1);
+ memory_region_init(pci_memory, "pci", INT64_MAX);
+ rom_memory = pci_memory;
+ } else {
+ pci_memory = NULL;
+ rom_memory = get_system_memory();
+ }
+
+ /* allocate ram and load rom/bios */
+ if (!xen_enabled()) {
+ pc_memory_init(get_system_memory(), kernel_filename, kernel_cmdline,
+ initrd_filename, below_4g_mem_size, above_4g_mem_size,
+ rom_memory, &ram_memory);
+ }
+
+ /* irq lines */
+ gsi_state = g_malloc0(sizeof(*gsi_state));
+ if (kvm_irqchip_in_kernel()) {
+ kvm_pc_setup_irq_routing(pci_enabled);
+ gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
+ GSI_NUM_PINS);
+ } else {
+ gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
+ }
+
+ /* create pci host bus */
+ q35_host = Q35_HOST_DEVICE(qdev_create(NULL, TYPE_Q35_HOST_DEVICE));
+
+ q35_host->mch.ram_memory = ram_memory;
+ q35_host->mch.pci_address_space = pci_memory;
+ q35_host->mch.system_memory = get_system_memory();
+ q35_host->mch.address_space_io = get_system_io();;
+ q35_host->mch.below_4g_mem_size = below_4g_mem_size;
+ q35_host->mch.above_4g_mem_size = above_4g_mem_size;
+ /* pci */
+ qdev_init_nofail(DEVICE(q35_host));
+ host_bus = q35_host->host.pci.bus;
+ /* create ISA bus */
+ lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV,
+ ICH9_LPC_FUNC), true,
+ TYPE_ICH9_LPC_DEVICE);
+ ich9_lpc = ICH9_LPC_DEVICE(lpc);
+ ich9_lpc->pic = gsi;
+ ich9_lpc->ioapic = gsi_state->ioapic_irq;
+ pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc,
+ ICH9_LPC_NB_PIRQS);
+ pci_bus_set_route_irq_fn(host_bus, ich9_route_intx_pin_to_irq);
+ isa_bus = ich9_lpc->isa_bus;
+
+ /*end early*/
+ isa_bus_irqs(isa_bus, gsi);
+
+ if (kvm_irqchip_in_kernel()) {
+ i8259 = kvm_i8259_init(isa_bus);
+ } else if (xen_enabled()) {
+ i8259 = xen_interrupt_controller_init();
+ } else {
+ cpu_irq = pc_allocate_cpu_irq();
+ i8259 = i8259_init(isa_bus, cpu_irq[0]);
+ }
+
+ for (i = 0; i < ISA_NUM_IRQS; i++) {
+ gsi_state->i8259_irq[i] = i8259[i];
+ }
+ if (pci_enabled) {
+ ioapic_init_gsi(gsi_state, NULL);
+ }
+
+ pc_register_ferr_irq(gsi[13]);
+
+ /* init basic PC hardware */
+ pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, false);
+
+ /* connect pm stuff to lpc */
+ cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
+ ich9_lpc_pm_init(lpc, *cmos_s3);
+
+ /* ahci and SATA device, for q35 1 ahci controller is built-in */
+ ahci = pci_create_simple_multifunction(host_bus,
+ PCI_DEVFN(ICH9_SATA1_DEV,
+ ICH9_SATA1_FUNC),
+ true, "ich9-ahci");
+ idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0");
+ idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1");
+
+ if (usb_enabled(false)) {
+ /* Should we create 6 UHCI according to ich9 spec? */
+ ehci_create_ich9_with_companions(host_bus, 0x1d);
+ }
+
+ /* TODO: Populate SPD eeprom data. */
+ smbus_eeprom_init(ich9_smb_init(host_bus,
+ PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC),
+ 0xb100),
+ 8, NULL, 0);
+
+ pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
+ floppy, idebus[0], idebus[1], rtc_state);
+
+ /* the rest devices to which pci devfn is automatically assigned */
+ pc_vga_init(isa_bus, host_bus);
+ audio_init(isa_bus, host_bus);
+ pc_nic_init(isa_bus, host_bus);
+ if (pci_enabled) {
+ pc_pci_device_init(host_bus);
+ }
+}
+
+static QEMUMachine pc_q35_machine_v1_5 = {
+ .name = "pc-q35-1.5",
+ .alias = "q35",
+ .desc = "Standard PC (Q35 + ICH9, 2009)",
+ .init = pc_q35_init,
+ .max_cpus = 255,
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static QEMUMachine pc_q35_machine_v1_4 = {
+ .name = "pc-q35-1.4",
+ .desc = "Standard PC (Q35 + ICH9, 2009)",
+ .init = pc_q35_init,
+ .max_cpus = 255,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_1_4,
+ { /* end of list */ }
+ },
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static void pc_q35_machine_init(void)
+{
+ qemu_register_machine(&pc_q35_machine_v1_5);
+ qemu_register_machine(&pc_q35_machine_v1_4);
+}
+
+machine_init(pc_q35_machine_init);
diff --git a/hw/i386/smbios.c b/hw/i386/smbios.c
new file mode 100644
index 0000000000..672ee9b0e7
--- /dev/null
+++ b/hw/i386/smbios.c
@@ -0,0 +1,241 @@
+/*
+ * SMBIOS Support
+ *
+ * Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors:
+ * Alex Williamson <alex.williamson@hp.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+
+#include "sysemu/sysemu.h"
+#include "hw/smbios.h"
+#include "hw/loader.h"
+
+/*
+ * Structures shared with the BIOS
+ */
+struct smbios_header {
+ uint16_t length;
+ uint8_t type;
+} QEMU_PACKED;
+
+struct smbios_field {
+ struct smbios_header header;
+ uint8_t type;
+ uint16_t offset;
+ uint8_t data[];
+} QEMU_PACKED;
+
+struct smbios_table {
+ struct smbios_header header;
+ uint8_t data[];
+} QEMU_PACKED;
+
+#define SMBIOS_FIELD_ENTRY 0
+#define SMBIOS_TABLE_ENTRY 1
+
+
+static uint8_t *smbios_entries;
+static size_t smbios_entries_len;
+static int smbios_type4_count = 0;
+
+static void smbios_validate_table(void)
+{
+ if (smbios_type4_count && smbios_type4_count != smp_cpus) {
+ fprintf(stderr,
+ "Number of SMBIOS Type 4 tables must match cpu count.\n");
+ exit(1);
+ }
+}
+
+uint8_t *smbios_get_table(size_t *length)
+{
+ smbios_validate_table();
+ *length = smbios_entries_len;
+ return smbios_entries;
+}
+
+/*
+ * To avoid unresolvable overlaps in data, don't allow both
+ * tables and fields for the same smbios type.
+ */
+static void smbios_check_collision(int type, int entry)
+{
+ uint16_t *num_entries = (uint16_t *)smbios_entries;
+ struct smbios_header *header;
+ char *p;
+ int i;
+
+ if (!num_entries)
+ return;
+
+ p = (char *)(num_entries + 1);
+
+ for (i = 0; i < *num_entries; i++) {
+ header = (struct smbios_header *)p;
+ if (entry == SMBIOS_TABLE_ENTRY && header->type == SMBIOS_FIELD_ENTRY) {
+ struct smbios_field *field = (void *)header;
+ if (type == field->type) {
+ fprintf(stderr, "SMBIOS type %d field already defined, "
+ "cannot add table\n", type);
+ exit(1);
+ }
+ } else if (entry == SMBIOS_FIELD_ENTRY &&
+ header->type == SMBIOS_TABLE_ENTRY) {
+ struct smbios_structure_header *table = (void *)(header + 1);
+ if (type == table->type) {
+ fprintf(stderr, "SMBIOS type %d table already defined, "
+ "cannot add field\n", type);
+ exit(1);
+ }
+ }
+ p += le16_to_cpu(header->length);
+ }
+}
+
+void smbios_add_field(int type, int offset, int len, void *data)
+{
+ struct smbios_field *field;
+
+ smbios_check_collision(type, SMBIOS_FIELD_ENTRY);
+
+ if (!smbios_entries) {
+ smbios_entries_len = sizeof(uint16_t);
+ smbios_entries = g_malloc0(smbios_entries_len);
+ }
+ smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
+ sizeof(*field) + len);
+ field = (struct smbios_field *)(smbios_entries + smbios_entries_len);
+ field->header.type = SMBIOS_FIELD_ENTRY;
+ field->header.length = cpu_to_le16(sizeof(*field) + len);
+
+ field->type = type;
+ field->offset = cpu_to_le16(offset);
+ memcpy(field->data, data, len);
+
+ smbios_entries_len += sizeof(*field) + len;
+ (*(uint16_t *)smbios_entries) =
+ cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
+}
+
+static void smbios_build_type_0_fields(const char *t)
+{
+ char buf[1024];
+
+ if (get_param_value(buf, sizeof(buf), "vendor", t))
+ smbios_add_field(0, offsetof(struct smbios_type_0, vendor_str),
+ strlen(buf) + 1, buf);
+ if (get_param_value(buf, sizeof(buf), "version", t))
+ smbios_add_field(0, offsetof(struct smbios_type_0, bios_version_str),
+ strlen(buf) + 1, buf);
+ if (get_param_value(buf, sizeof(buf), "date", t))
+ smbios_add_field(0, offsetof(struct smbios_type_0,
+ bios_release_date_str),
+ strlen(buf) + 1, buf);
+ if (get_param_value(buf, sizeof(buf), "release", t)) {
+ int major, minor;
+ sscanf(buf, "%d.%d", &major, &minor);
+ smbios_add_field(0, offsetof(struct smbios_type_0,
+ system_bios_major_release), 1, &major);
+ smbios_add_field(0, offsetof(struct smbios_type_0,
+ system_bios_minor_release), 1, &minor);
+ }
+}
+
+static void smbios_build_type_1_fields(const char *t)
+{
+ char buf[1024];
+
+ if (get_param_value(buf, sizeof(buf), "manufacturer", t))
+ smbios_add_field(1, offsetof(struct smbios_type_1, manufacturer_str),
+ strlen(buf) + 1, buf);
+ if (get_param_value(buf, sizeof(buf), "product", t))
+ smbios_add_field(1, offsetof(struct smbios_type_1, product_name_str),
+ strlen(buf) + 1, buf);
+ if (get_param_value(buf, sizeof(buf), "version", t))
+ smbios_add_field(1, offsetof(struct smbios_type_1, version_str),
+ strlen(buf) + 1, buf);
+ if (get_param_value(buf, sizeof(buf), "serial", t))
+ smbios_add_field(1, offsetof(struct smbios_type_1, serial_number_str),
+ strlen(buf) + 1, buf);
+ if (get_param_value(buf, sizeof(buf), "uuid", t)) {
+ if (qemu_uuid_parse(buf, qemu_uuid) != 0) {
+ fprintf(stderr, "Invalid SMBIOS UUID string\n");
+ exit(1);
+ }
+ }
+ if (get_param_value(buf, sizeof(buf), "sku", t))
+ smbios_add_field(1, offsetof(struct smbios_type_1, sku_number_str),
+ strlen(buf) + 1, buf);
+ if (get_param_value(buf, sizeof(buf), "family", t))
+ smbios_add_field(1, offsetof(struct smbios_type_1, family_str),
+ strlen(buf) + 1, buf);
+}
+
+int smbios_entry_add(const char *t)
+{
+ char buf[1024];
+
+ if (get_param_value(buf, sizeof(buf), "file", t)) {
+ struct smbios_structure_header *header;
+ struct smbios_table *table;
+ int size = get_image_size(buf);
+
+ if (size == -1 || size < sizeof(struct smbios_structure_header)) {
+ fprintf(stderr, "Cannot read smbios file %s\n", buf);
+ exit(1);
+ }
+
+ if (!smbios_entries) {
+ smbios_entries_len = sizeof(uint16_t);
+ smbios_entries = g_malloc0(smbios_entries_len);
+ }
+
+ smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
+ sizeof(*table) + size);
+ table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
+ table->header.type = SMBIOS_TABLE_ENTRY;
+ table->header.length = cpu_to_le16(sizeof(*table) + size);
+
+ if (load_image(buf, table->data) != size) {
+ fprintf(stderr, "Failed to load smbios file %s", buf);
+ exit(1);
+ }
+
+ header = (struct smbios_structure_header *)(table->data);
+ smbios_check_collision(header->type, SMBIOS_TABLE_ENTRY);
+ if (header->type == 4) {
+ smbios_type4_count++;
+ }
+
+ smbios_entries_len += sizeof(*table) + size;
+ (*(uint16_t *)smbios_entries) =
+ cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
+ return 0;
+ }
+
+ if (get_param_value(buf, sizeof(buf), "type", t)) {
+ unsigned long type = strtoul(buf, NULL, 0);
+ switch (type) {
+ case 0:
+ smbios_build_type_0_fields(t);
+ return 0;
+ case 1:
+ smbios_build_type_1_fields(t);
+ return 0;
+ default:
+ fprintf(stderr, "Don't know how to build fields for SMBIOS type "
+ "%ld\n", type);
+ exit(1);
+ }
+ }
+
+ fprintf(stderr, "smbios: must specify type= or file=\n");
+ return -1;
+}
diff --git a/hw/i386/xen_domainbuild.c b/hw/i386/xen_domainbuild.c
new file mode 100644
index 0000000000..d477061545
--- /dev/null
+++ b/hw/i386/xen_domainbuild.c
@@ -0,0 +1,299 @@
+#include <signal.h>
+#include "hw/xen_backend.h"
+#include "hw/xen_domainbuild.h"
+#include "qemu/timer.h"
+#include "qemu/log.h"
+
+#include <xenguest.h>
+
+static int xenstore_domain_mkdir(char *path)
+{
+ struct xs_permissions perms_ro[] = {{
+ .id = 0, /* set owner: dom0 */
+ },{
+ .id = xen_domid,
+ .perms = XS_PERM_READ,
+ }};
+ struct xs_permissions perms_rw[] = {{
+ .id = 0, /* set owner: dom0 */
+ },{
+ .id = xen_domid,
+ .perms = XS_PERM_READ | XS_PERM_WRITE,
+ }};
+ const char *writable[] = { "device", "control", "error", NULL };
+ char subpath[256];
+ int i;
+
+ if (!xs_mkdir(xenstore, 0, path)) {
+ fprintf(stderr, "%s: xs_mkdir %s: failed\n", __FUNCTION__, path);
+ return -1;
+ }
+ if (!xs_set_permissions(xenstore, 0, path, perms_ro, 2)) {
+ fprintf(stderr, "%s: xs_set_permissions failed\n", __FUNCTION__);
+ return -1;
+ }
+
+ for (i = 0; writable[i]; i++) {
+ snprintf(subpath, sizeof(subpath), "%s/%s", path, writable[i]);
+ if (!xs_mkdir(xenstore, 0, subpath)) {
+ fprintf(stderr, "%s: xs_mkdir %s: failed\n", __FUNCTION__, subpath);
+ return -1;
+ }
+ if (!xs_set_permissions(xenstore, 0, subpath, perms_rw, 2)) {
+ fprintf(stderr, "%s: xs_set_permissions failed\n", __FUNCTION__);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+int xenstore_domain_init1(const char *kernel, const char *ramdisk,
+ const char *cmdline)
+{
+ char *dom, uuid_string[42], vm[256], path[256];
+ int i;
+
+ snprintf(uuid_string, sizeof(uuid_string), UUID_FMT,
+ qemu_uuid[0], qemu_uuid[1], qemu_uuid[2], qemu_uuid[3],
+ qemu_uuid[4], qemu_uuid[5], qemu_uuid[6], qemu_uuid[7],
+ qemu_uuid[8], qemu_uuid[9], qemu_uuid[10], qemu_uuid[11],
+ qemu_uuid[12], qemu_uuid[13], qemu_uuid[14], qemu_uuid[15]);
+ dom = xs_get_domain_path(xenstore, xen_domid);
+ snprintf(vm, sizeof(vm), "/vm/%s", uuid_string);
+
+ xenstore_domain_mkdir(dom);
+
+ xenstore_write_str(vm, "image/ostype", "linux");
+ if (kernel)
+ xenstore_write_str(vm, "image/kernel", kernel);
+ if (ramdisk)
+ xenstore_write_str(vm, "image/ramdisk", ramdisk);
+ if (cmdline)
+ xenstore_write_str(vm, "image/cmdline", cmdline);
+
+ /* name + id */
+ xenstore_write_str(vm, "name", qemu_name ? qemu_name : "no-name");
+ xenstore_write_str(vm, "uuid", uuid_string);
+ xenstore_write_str(dom, "name", qemu_name ? qemu_name : "no-name");
+ xenstore_write_int(dom, "domid", xen_domid);
+ xenstore_write_str(dom, "vm", vm);
+
+ /* memory */
+ xenstore_write_int(dom, "memory/target", ram_size >> 10); // kB
+ xenstore_write_int(vm, "memory", ram_size >> 20); // MB
+ xenstore_write_int(vm, "maxmem", ram_size >> 20); // MB
+
+ /* cpus */
+ for (i = 0; i < smp_cpus; i++) {
+ snprintf(path, sizeof(path), "cpu/%d/availability",i);
+ xenstore_write_str(dom, path, "online");
+ }
+ xenstore_write_int(vm, "vcpu_avail", smp_cpus);
+ xenstore_write_int(vm, "vcpus", smp_cpus);
+
+ /* vnc password */
+ xenstore_write_str(vm, "vncpassword", "" /* FIXME */);
+
+ free(dom);
+ return 0;
+}
+
+int xenstore_domain_init2(int xenstore_port, int xenstore_mfn,
+ int console_port, int console_mfn)
+{
+ char *dom;
+
+ dom = xs_get_domain_path(xenstore, xen_domid);
+
+ /* signal new domain */
+ xs_introduce_domain(xenstore,
+ xen_domid,
+ xenstore_mfn,
+ xenstore_port);
+
+ /* xenstore */
+ xenstore_write_int(dom, "store/ring-ref", xenstore_mfn);
+ xenstore_write_int(dom, "store/port", xenstore_port);
+
+ /* console */
+ xenstore_write_str(dom, "console/type", "ioemu");
+ xenstore_write_int(dom, "console/limit", 128 * 1024);
+ xenstore_write_int(dom, "console/ring-ref", console_mfn);
+ xenstore_write_int(dom, "console/port", console_port);
+ xen_config_dev_console(0);
+
+ free(dom);
+ return 0;
+}
+
+/* ------------------------------------------------------------- */
+
+static QEMUTimer *xen_poll;
+
+/* check domain state once per second */
+static void xen_domain_poll(void *opaque)
+{
+ struct xc_dominfo info;
+ int rc;
+
+ rc = xc_domain_getinfo(xen_xc, xen_domid, 1, &info);
+ if ((rc != 1) || (info.domid != xen_domid)) {
+ qemu_log("xen: domain %d is gone\n", xen_domid);
+ goto quit;
+ }
+ if (info.dying) {
+ qemu_log("xen: domain %d is dying (%s%s)\n", xen_domid,
+ info.crashed ? "crashed" : "",
+ info.shutdown ? "shutdown" : "");
+ goto quit;
+ }
+
+ qemu_mod_timer(xen_poll, qemu_get_clock_ms(rt_clock) + 1000);
+ return;
+
+quit:
+ qemu_system_shutdown_request();
+}
+
+static int xen_domain_watcher(void)
+{
+ int qemu_running = 1;
+ int fd[2], i, n, rc;
+ char byte;
+
+ if (pipe(fd) != 0) {
+ qemu_log("%s: Huh? pipe error: %s\n", __FUNCTION__, strerror(errno));
+ return -1;
+ }
+ if (fork() != 0)
+ return 0; /* not child */
+
+ /* close all file handles, except stdio/out/err,
+ * our watch pipe and the xen interface handle */
+ n = getdtablesize();
+ for (i = 3; i < n; i++) {
+ if (i == fd[0])
+ continue;
+ if (i == xc_fd(xen_xc)) {
+ continue;
+ }
+ close(i);
+ }
+
+ /* ignore term signals */
+ signal(SIGINT, SIG_IGN);
+ signal(SIGTERM, SIG_IGN);
+
+ /* wait for qemu exiting */
+ while (qemu_running) {
+ rc = read(fd[0], &byte, 1);
+ switch (rc) {
+ case -1:
+ if (errno == EINTR)
+ continue;
+ qemu_log("%s: Huh? read error: %s\n", __FUNCTION__, strerror(errno));
+ qemu_running = 0;
+ break;
+ case 0:
+ /* EOF -> qemu exited */
+ qemu_running = 0;
+ break;
+ default:
+ qemu_log("%s: Huh? data on the watch pipe?\n", __FUNCTION__);
+ break;
+ }
+ }
+
+ /* cleanup */
+ qemu_log("%s: destroy domain %d\n", __FUNCTION__, xen_domid);
+ xc_domain_destroy(xen_xc, xen_domid);
+ _exit(0);
+}
+
+/* normal cleanup */
+static void xen_domain_cleanup(void)
+{
+ char *dom;
+
+ dom = xs_get_domain_path(xenstore, xen_domid);
+ if (dom) {
+ xs_rm(xenstore, 0, dom);
+ free(dom);
+ }
+ xs_release_domain(xenstore, xen_domid);
+}
+
+int xen_domain_build_pv(const char *kernel, const char *ramdisk,
+ const char *cmdline)
+{
+ uint32_t ssidref = 0;
+ uint32_t flags = 0;
+ xen_domain_handle_t uuid;
+ unsigned int xenstore_port = 0, console_port = 0;
+ unsigned long xenstore_mfn = 0, console_mfn = 0;
+ int rc;
+
+ memcpy(uuid, qemu_uuid, sizeof(uuid));
+ rc = xc_domain_create(xen_xc, ssidref, uuid, flags, &xen_domid);
+ if (rc < 0) {
+ fprintf(stderr, "xen: xc_domain_create() failed\n");
+ goto err;
+ }
+ qemu_log("xen: created domain %d\n", xen_domid);
+ atexit(xen_domain_cleanup);
+ if (xen_domain_watcher() == -1) {
+ goto err;
+ }
+
+ xenstore_domain_init1(kernel, ramdisk, cmdline);
+
+ rc = xc_domain_max_vcpus(xen_xc, xen_domid, smp_cpus);
+ if (rc < 0) {
+ fprintf(stderr, "xen: xc_domain_max_vcpus() failed\n");
+ goto err;
+ }
+
+#if 0
+ rc = xc_domain_setcpuweight(xen_xc, xen_domid, 256);
+ if (rc < 0) {
+ fprintf(stderr, "xen: xc_domain_setcpuweight() failed\n");
+ goto err;
+ }
+#endif
+
+ rc = xc_domain_setmaxmem(xen_xc, xen_domid, ram_size >> 10);
+ if (rc < 0) {
+ fprintf(stderr, "xen: xc_domain_setmaxmem() failed\n");
+ goto err;
+ }
+
+ xenstore_port = xc_evtchn_alloc_unbound(xen_xc, xen_domid, 0);
+ console_port = xc_evtchn_alloc_unbound(xen_xc, xen_domid, 0);
+
+ rc = xc_linux_build(xen_xc, xen_domid, ram_size >> 20,
+ kernel, ramdisk, cmdline,
+ 0, flags,
+ xenstore_port, &xenstore_mfn,
+ console_port, &console_mfn);
+ if (rc < 0) {
+ fprintf(stderr, "xen: xc_linux_build() failed\n");
+ goto err;
+ }
+
+ xenstore_domain_init2(xenstore_port, xenstore_mfn,
+ console_port, console_mfn);
+
+ qemu_log("xen: unpausing domain %d\n", xen_domid);
+ rc = xc_domain_unpause(xen_xc, xen_domid);
+ if (rc < 0) {
+ fprintf(stderr, "xen: xc_domain_unpause() failed\n");
+ goto err;
+ }
+
+ xen_poll = qemu_new_timer_ms(rt_clock, xen_domain_poll, NULL);
+ qemu_mod_timer(xen_poll, qemu_get_clock_ms(rt_clock) + 1000);
+ return 0;
+
+err:
+ return -1;
+}
diff --git a/hw/i386/xen_machine_pv.c b/hw/i386/xen_machine_pv.c
new file mode 100644
index 0000000000..a8177b6340
--- /dev/null
+++ b/hw/i386/xen_machine_pv.c
@@ -0,0 +1,126 @@
+/*
+ * QEMU Xen PV Machine
+ *
+ * Copyright (c) 2007 Red Hat
+ *
+ * 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 "hw/hw.h"
+#include "hw/pc.h"
+#include "hw/boards.h"
+#include "hw/xen_backend.h"
+#include "hw/xen_domainbuild.h"
+#include "sysemu/blockdev.h"
+
+static void xen_init_pv(QEMUMachineInitArgs *args)
+{
+ const char *cpu_model = args->cpu_model;
+ const char *kernel_filename = args->kernel_filename;
+ const char *kernel_cmdline = args->kernel_cmdline;
+ const char *initrd_filename = args->initrd_filename;
+ X86CPU *cpu;
+ CPUX86State *env;
+ DriveInfo *dinfo;
+ int i;
+
+ /* Initialize a dummy CPU */
+ if (cpu_model == NULL) {
+#ifdef TARGET_X86_64
+ cpu_model = "qemu64";
+#else
+ cpu_model = "qemu32";
+#endif
+ }
+ cpu = cpu_x86_init(cpu_model);
+ env = &cpu->env;
+ env->halted = 1;
+
+ /* Initialize backend core & drivers */
+ if (xen_be_init() != 0) {
+ fprintf(stderr, "%s: xen backend core setup failed\n", __FUNCTION__);
+ exit(1);
+ }
+
+ switch (xen_mode) {
+ case XEN_ATTACH:
+ /* nothing to do, xend handles everything */
+ break;
+ case XEN_CREATE:
+ if (xen_domain_build_pv(kernel_filename, initrd_filename,
+ kernel_cmdline) < 0) {
+ fprintf(stderr, "xen pv domain creation failed\n");
+ exit(1);
+ }
+ break;
+ case XEN_EMULATE:
+ fprintf(stderr, "xen emulation not implemented (yet)\n");
+ exit(1);
+ break;
+ }
+
+ xen_be_register("console", &xen_console_ops);
+ xen_be_register("vkbd", &xen_kbdmouse_ops);
+ xen_be_register("vfb", &xen_framebuffer_ops);
+ xen_be_register("qdisk", &xen_blkdev_ops);
+ xen_be_register("qnic", &xen_netdev_ops);
+
+ /* configure framebuffer */
+ if (xenfb_enabled) {
+ xen_config_dev_vfb(0, "vnc");
+ xen_config_dev_vkbd(0);
+ }
+
+ /* configure disks */
+ for (i = 0; i < 16; i++) {
+ dinfo = drive_get(IF_XEN, 0, i);
+ if (!dinfo)
+ continue;
+ xen_config_dev_blk(dinfo);
+ }
+
+ /* configure nics */
+ for (i = 0; i < nb_nics; i++) {
+ if (!nd_table[i].model || 0 != strcmp(nd_table[i].model, "xen"))
+ continue;
+ xen_config_dev_nic(nd_table + i);
+ }
+
+ /* config cleanup hook */
+ atexit(xen_config_cleanup);
+
+ /* setup framebuffer */
+ xen_init_display(xen_domid);
+}
+
+static QEMUMachine xenpv_machine = {
+ .name = "xenpv",
+ .desc = "Xen Para-virtualized PC",
+ .init = xen_init_pv,
+ .max_cpus = 1,
+ .default_machine_opts = "accel=xen",
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static void xenpv_machine_init(void)
+{
+ qemu_register_machine(&xenpv_machine);
+}
+
+machine_init(xenpv_machine_init);
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-24 22:57:20 +0000