--- /dev/null
+/*
+ * i386 helpers (without register variable usage)
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "cpu.h"
+#include "sysemu/kvm.h"
+#include "kvm_i386.h"
+#ifndef CONFIG_USER_ONLY
+#include "sysemu/sysemu.h"
+#include "monitor/monitor.h"
+#endif
+
+static void cpu_x86_version(CPUX86State *env, int *family, int *model)
+{
+ int cpuver = env->cpuid_version;
+
+ if (family == NULL || model == NULL) {
+ return;
+ }
+
+ *family = (cpuver >> 8) & 0x0f;
+ *model = ((cpuver >> 12) & 0xf0) + ((cpuver >> 4) & 0x0f);
+}
+
+/* Broadcast MCA signal for processor version 06H_EH and above */
+int cpu_x86_support_mca_broadcast(CPUX86State *env)
+{
+ int family = 0;
+ int model = 0;
+
+ cpu_x86_version(env, &family, &model);
+ if ((family == 6 && model >= 14) || family > 6) {
+ return 1;
+ }
+
+ return 0;
+}
+
+/***********************************************************/
+/* x86 debug */
+
+static const char *cc_op_str[CC_OP_NB] = {
+ "DYNAMIC",
+ "EFLAGS",
+
+ "MULB",
+ "MULW",
+ "MULL",
+ "MULQ",
+
+ "ADDB",
+ "ADDW",
+ "ADDL",
+ "ADDQ",
+
+ "ADCB",
+ "ADCW",
+ "ADCL",
+ "ADCQ",
+
+ "SUBB",
+ "SUBW",
+ "SUBL",
+ "SUBQ",
+
+ "SBBB",
+ "SBBW",
+ "SBBL",
+ "SBBQ",
+
+ "LOGICB",
+ "LOGICW",
+ "LOGICL",
+ "LOGICQ",
+
+ "INCB",
+ "INCW",
+ "INCL",
+ "INCQ",
+
+ "DECB",
+ "DECW",
+ "DECL",
+ "DECQ",
+
+ "SHLB",
+ "SHLW",
+ "SHLL",
+ "SHLQ",
+
+ "SARB",
+ "SARW",
+ "SARL",
+ "SARQ",
+
+ "BMILGB",
+ "BMILGW",
+ "BMILGL",
+ "BMILGQ",
+
+ "ADCX",
+ "ADOX",
+ "ADCOX",
+
+ "CLR",
+};
+
+static void
+cpu_x86_dump_seg_cache(CPUX86State *env, FILE *f, fprintf_function cpu_fprintf,
+ const char *name, struct SegmentCache *sc)
+{
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_CS64_MASK) {
+ cpu_fprintf(f, "%-3s=%04x %016" PRIx64 " %08x %08x", name,
+ sc->selector, sc->base, sc->limit, sc->flags & 0x00ffff00);
+ } else
+#endif
+ {
+ cpu_fprintf(f, "%-3s=%04x %08x %08x %08x", name, sc->selector,
+ (uint32_t)sc->base, sc->limit, sc->flags & 0x00ffff00);
+ }
+
+ if (!(env->hflags & HF_PE_MASK) || !(sc->flags & DESC_P_MASK))
+ goto done;
+
+ cpu_fprintf(f, " DPL=%d ", (sc->flags & DESC_DPL_MASK) >> DESC_DPL_SHIFT);
+ if (sc->flags & DESC_S_MASK) {
+ if (sc->flags & DESC_CS_MASK) {
+ cpu_fprintf(f, (sc->flags & DESC_L_MASK) ? "CS64" :
+ ((sc->flags & DESC_B_MASK) ? "CS32" : "CS16"));
+ cpu_fprintf(f, " [%c%c", (sc->flags & DESC_C_MASK) ? 'C' : '-',
+ (sc->flags & DESC_R_MASK) ? 'R' : '-');
+ } else {
+ cpu_fprintf(f,
+ (sc->flags & DESC_B_MASK || env->hflags & HF_LMA_MASK)
+ ? "DS " : "DS16");
+ cpu_fprintf(f, " [%c%c", (sc->flags & DESC_E_MASK) ? 'E' : '-',
+ (sc->flags & DESC_W_MASK) ? 'W' : '-');
+ }
+ cpu_fprintf(f, "%c]", (sc->flags & DESC_A_MASK) ? 'A' : '-');
+ } else {
+ static const char *sys_type_name[2][16] = {
+ { /* 32 bit mode */
+ "Reserved", "TSS16-avl", "LDT", "TSS16-busy",
+ "CallGate16", "TaskGate", "IntGate16", "TrapGate16",
+ "Reserved", "TSS32-avl", "Reserved", "TSS32-busy",
+ "CallGate32", "Reserved", "IntGate32", "TrapGate32"
+ },
+ { /* 64 bit mode */
+ "<hiword>", "Reserved", "LDT", "Reserved", "Reserved",
+ "Reserved", "Reserved", "Reserved", "Reserved",
+ "TSS64-avl", "Reserved", "TSS64-busy", "CallGate64",
+ "Reserved", "IntGate64", "TrapGate64"
+ }
+ };
+ cpu_fprintf(f, "%s",
+ sys_type_name[(env->hflags & HF_LMA_MASK) ? 1 : 0]
+ [(sc->flags & DESC_TYPE_MASK)
+ >> DESC_TYPE_SHIFT]);
+ }
+done:
+ cpu_fprintf(f, "\n");
+}
+
+#define DUMP_CODE_BYTES_TOTAL 50
+#define DUMP_CODE_BYTES_BACKWARD 20
+
+void x86_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
+ int flags)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+ int eflags, i, nb;
+ char cc_op_name[32];
+ static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" };
+
+ eflags = cpu_compute_eflags(env);
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_CS64_MASK) {
+ cpu_fprintf(f,
+ "RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n"
+ "RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n"
+ "R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n"
+ "R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n"
+ "RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
+ env->regs[R_EAX],
+ env->regs[R_EBX],
+ env->regs[R_ECX],
+ env->regs[R_EDX],
+ env->regs[R_ESI],
+ env->regs[R_EDI],
+ env->regs[R_EBP],
+ env->regs[R_ESP],
+ env->regs[8],
+ env->regs[9],
+ env->regs[10],
+ env->regs[11],
+ env->regs[12],
+ env->regs[13],
+ env->regs[14],
+ env->regs[15],
+ env->eip, eflags,
+ eflags & DF_MASK ? 'D' : '-',
+ eflags & CC_O ? 'O' : '-',
+ eflags & CC_S ? 'S' : '-',
+ eflags & CC_Z ? 'Z' : '-',
+ eflags & CC_A ? 'A' : '-',
+ eflags & CC_P ? 'P' : '-',
+ eflags & CC_C ? 'C' : '-',
+ env->hflags & HF_CPL_MASK,
+ (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
+ (env->a20_mask >> 20) & 1,
+ (env->hflags >> HF_SMM_SHIFT) & 1,
+ cs->halted);
+ } else
+#endif
+ {
+ cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
+ "ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
+ "EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
+ (uint32_t)env->regs[R_EAX],
+ (uint32_t)env->regs[R_EBX],
+ (uint32_t)env->regs[R_ECX],
+ (uint32_t)env->regs[R_EDX],
+ (uint32_t)env->regs[R_ESI],
+ (uint32_t)env->regs[R_EDI],
+ (uint32_t)env->regs[R_EBP],
+ (uint32_t)env->regs[R_ESP],
+ (uint32_t)env->eip, eflags,
+ eflags & DF_MASK ? 'D' : '-',
+ eflags & CC_O ? 'O' : '-',
+ eflags & CC_S ? 'S' : '-',
+ eflags & CC_Z ? 'Z' : '-',
+ eflags & CC_A ? 'A' : '-',
+ eflags & CC_P ? 'P' : '-',
+ eflags & CC_C ? 'C' : '-',
+ env->hflags & HF_CPL_MASK,
+ (env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
+ (env->a20_mask >> 20) & 1,
+ (env->hflags >> HF_SMM_SHIFT) & 1,
+ cs->halted);
+ }
+
+ for(i = 0; i < 6; i++) {
+ cpu_x86_dump_seg_cache(env, f, cpu_fprintf, seg_name[i],
+ &env->segs[i]);
+ }
+ cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "LDT", &env->ldt);
+ cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "TR", &env->tr);
+
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n",
+ env->gdt.base, env->gdt.limit);
+ cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n",
+ env->idt.base, env->idt.limit);
+ cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n",
+ (uint32_t)env->cr[0],
+ env->cr[2],
+ env->cr[3],
+ (uint32_t)env->cr[4]);
+ for(i = 0; i < 4; i++)
+ cpu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]);
+ cpu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n",
+ env->dr[6], env->dr[7]);
+ } else
+#endif
+ {
+ cpu_fprintf(f, "GDT= %08x %08x\n",
+ (uint32_t)env->gdt.base, env->gdt.limit);
+ cpu_fprintf(f, "IDT= %08x %08x\n",
+ (uint32_t)env->idt.base, env->idt.limit);
+ cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
+ (uint32_t)env->cr[0],
+ (uint32_t)env->cr[2],
+ (uint32_t)env->cr[3],
+ (uint32_t)env->cr[4]);
+ for(i = 0; i < 4; i++) {
+ cpu_fprintf(f, "DR%d=" TARGET_FMT_lx " ", i, env->dr[i]);
+ }
+ cpu_fprintf(f, "\nDR6=" TARGET_FMT_lx " DR7=" TARGET_FMT_lx "\n",
+ env->dr[6], env->dr[7]);
+ }
+ if (flags & CPU_DUMP_CCOP) {
+ if ((unsigned)env->cc_op < CC_OP_NB)
+ snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]);
+ else
+ snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op);
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_CS64_MASK) {
+ cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n",
+ env->cc_src, env->cc_dst,
+ cc_op_name);
+ } else
+#endif
+ {
+ cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
+ (uint32_t)env->cc_src, (uint32_t)env->cc_dst,
+ cc_op_name);
+ }
+ }
+ cpu_fprintf(f, "EFER=%016" PRIx64 "\n", env->efer);
+ if (flags & CPU_DUMP_FPU) {
+ int fptag;
+ fptag = 0;
+ for(i = 0; i < 8; i++) {
+ fptag |= ((!env->fptags[i]) << i);
+ }
+ cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
+ env->fpuc,
+ (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11,
+ env->fpstt,
+ fptag,
+ env->mxcsr);
+ for(i=0;i<8;i++) {
+ CPU_LDoubleU u;
+ u.d = env->fpregs[i].d;
+ cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x",
+ i, u.l.lower, u.l.upper);
+ if ((i & 1) == 1)
+ cpu_fprintf(f, "\n");
+ else
+ cpu_fprintf(f, " ");
+ }
+ if (env->hflags & HF_CS64_MASK)
+ nb = 16;
+ else
+ nb = 8;
+ for(i=0;i<nb;i++) {
+ cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
+ i,
+ env->xmm_regs[i].XMM_L(3),
+ env->xmm_regs[i].XMM_L(2),
+ env->xmm_regs[i].XMM_L(1),
+ env->xmm_regs[i].XMM_L(0));
+ if ((i & 1) == 1)
+ cpu_fprintf(f, "\n");
+ else
+ cpu_fprintf(f, " ");
+ }
+ }
+ if (flags & CPU_DUMP_CODE) {
+ target_ulong base = env->segs[R_CS].base + env->eip;
+ target_ulong offs = MIN(env->eip, DUMP_CODE_BYTES_BACKWARD);
+ uint8_t code;
+ char codestr[3];
+
+ cpu_fprintf(f, "Code=");
+ for (i = 0; i < DUMP_CODE_BYTES_TOTAL; i++) {
+ if (cpu_memory_rw_debug(cs, base - offs + i, &code, 1, 0) == 0) {
+ snprintf(codestr, sizeof(codestr), "%02x", code);
+ } else {
+ snprintf(codestr, sizeof(codestr), "??");
+ }
+ cpu_fprintf(f, "%s%s%s%s", i > 0 ? " " : "",
+ i == offs ? "<" : "", codestr, i == offs ? ">" : "");
+ }
+ cpu_fprintf(f, "\n");
+ }
+}
+
+/***********************************************************/
+/* x86 mmu */
+/* XXX: add PGE support */
+
+void x86_cpu_set_a20(X86CPU *cpu, int a20_state)
+{
+ CPUX86State *env = &cpu->env;
+
+ a20_state = (a20_state != 0);
+ if (a20_state != ((env->a20_mask >> 20) & 1)) {
+ CPUState *cs = CPU(cpu);
+
+ qemu_log_mask(CPU_LOG_MMU, "A20 update: a20=%d\n", a20_state);
+ /* if the cpu is currently executing code, we must unlink it and
+ all the potentially executing TB */
+ cpu_interrupt(cs, CPU_INTERRUPT_EXITTB);
+
+ /* when a20 is changed, all the MMU mappings are invalid, so
+ we must flush everything */
+ tlb_flush(cs, 1);
+ env->a20_mask = ~(1 << 20) | (a20_state << 20);
+ }
+}
+
+void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
+{
+ X86CPU *cpu = x86_env_get_cpu(env);
+ int pe_state;
+
+ qemu_log_mask(CPU_LOG_MMU, "CR0 update: CR0=0x%08x\n", new_cr0);
+ if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
+ (env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
+ tlb_flush(CPU(cpu), 1);
+ }
+
+#ifdef TARGET_X86_64
+ if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) &&
+ (env->efer & MSR_EFER_LME)) {
+ /* enter in long mode */
+ /* XXX: generate an exception */
+ if (!(env->cr[4] & CR4_PAE_MASK))
+ return;
+ env->efer |= MSR_EFER_LMA;
+ env->hflags |= HF_LMA_MASK;
+ } else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) &&
+ (env->efer & MSR_EFER_LMA)) {
+ /* exit long mode */
+ env->efer &= ~MSR_EFER_LMA;
+ env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK);
+ env->eip &= 0xffffffff;
+ }
+#endif
+ env->cr[0] = new_cr0 | CR0_ET_MASK;
+
+ /* update PE flag in hidden flags */
+ pe_state = (env->cr[0] & CR0_PE_MASK);
+ env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT);
+ /* ensure that ADDSEG is always set in real mode */
+ env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
+ /* update FPU flags */
+ env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) |
+ ((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
+}
+
+/* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
+ the PDPT */
+void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
+{
+ X86CPU *cpu = x86_env_get_cpu(env);
+
+ env->cr[3] = new_cr3;
+ if (env->cr[0] & CR0_PG_MASK) {
+ qemu_log_mask(CPU_LOG_MMU,
+ "CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3);
+ tlb_flush(CPU(cpu), 0);
+ }
+}
+
+void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
+{
+ X86CPU *cpu = x86_env_get_cpu(env);
+
+#if defined(DEBUG_MMU)
+ printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]);
+#endif
+ if ((new_cr4 ^ env->cr[4]) &
+ (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK |
+ CR4_SMEP_MASK | CR4_SMAP_MASK)) {
+ tlb_flush(CPU(cpu), 1);
+ }
+ /* SSE handling */
+ if (!(env->features[FEAT_1_EDX] & CPUID_SSE)) {
+ new_cr4 &= ~CR4_OSFXSR_MASK;
+ }
+ env->hflags &= ~HF_OSFXSR_MASK;
+ if (new_cr4 & CR4_OSFXSR_MASK) {
+ env->hflags |= HF_OSFXSR_MASK;
+ }
+
+ if (!(env->features[FEAT_7_0_EBX] & CPUID_7_0_EBX_SMAP)) {
+ new_cr4 &= ~CR4_SMAP_MASK;
+ }
+ env->hflags &= ~HF_SMAP_MASK;
+ if (new_cr4 & CR4_SMAP_MASK) {
+ env->hflags |= HF_SMAP_MASK;
+ }
+
+ env->cr[4] = new_cr4;
+}
+
+#if defined(CONFIG_USER_ONLY)
+
+int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
+ int is_write, int mmu_idx)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ /* user mode only emulation */
+ is_write &= 1;
+ env->cr[2] = addr;
+ env->error_code = (is_write << PG_ERROR_W_BIT);
+ env->error_code |= PG_ERROR_U_MASK;
+ cs->exception_index = EXCP0E_PAGE;
+ return 1;
+}
+
+#else
+
+/* return value:
+ * -1 = cannot handle fault
+ * 0 = nothing more to do
+ * 1 = generate PF fault
+ */
+int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
+ int is_write1, int mmu_idx)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+ uint64_t ptep, pte;
+ target_ulong pde_addr, pte_addr;
+ int error_code = 0;
+ int is_dirty, prot, page_size, is_write, is_user;
+ hwaddr paddr;
+ uint64_t rsvd_mask = PG_HI_RSVD_MASK;
+ uint32_t page_offset;
+ target_ulong vaddr;
+
+ is_user = mmu_idx == MMU_USER_IDX;
+#if defined(DEBUG_MMU)
+ printf("MMU fault: addr=%" VADDR_PRIx " w=%d u=%d eip=" TARGET_FMT_lx "\n",
+ addr, is_write1, is_user, env->eip);
+#endif
+ is_write = is_write1 & 1;
+
+ if (!(env->cr[0] & CR0_PG_MASK)) {
+ pte = addr;
+#ifdef TARGET_X86_64
+ if (!(env->hflags & HF_LMA_MASK)) {
+ /* Without long mode we can only address 32bits in real mode */
+ pte = (uint32_t)pte;
+ }
+#endif
+ prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
+ page_size = 4096;
+ goto do_mapping;
+ }
+
+ if (!(env->efer & MSR_EFER_NXE)) {
+ rsvd_mask |= PG_NX_MASK;
+ }
+
+ if (env->cr[4] & CR4_PAE_MASK) {
+ uint64_t pde, pdpe;
+ target_ulong pdpe_addr;
+
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ uint64_t pml4e_addr, pml4e;
+ int32_t sext;
+
+ /* test virtual address sign extension */
+ sext = (int64_t)addr >> 47;
+ if (sext != 0 && sext != -1) {
+ env->error_code = 0;
+ cs->exception_index = EXCP0D_GPF;
+ return 1;
+ }
+
+ pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pml4e = x86_ldq_phys(cs, pml4e_addr);
+ if (!(pml4e & PG_PRESENT_MASK)) {
+ goto do_fault;
+ }
+ if (pml4e & (rsvd_mask | PG_PSE_MASK)) {
+ goto do_fault_rsvd;
+ }
+ if (!(pml4e & PG_ACCESSED_MASK)) {
+ pml4e |= PG_ACCESSED_MASK;
+ x86_stl_phys_notdirty(cs, pml4e_addr, pml4e);
+ }
+ ptep = pml4e ^ PG_NX_MASK;
+ pdpe_addr = ((pml4e & PG_ADDRESS_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pdpe = x86_ldq_phys(cs, pdpe_addr);
+ if (!(pdpe & PG_PRESENT_MASK)) {
+ goto do_fault;
+ }
+ if (pdpe & rsvd_mask) {
+ goto do_fault_rsvd;
+ }
+ ptep &= pdpe ^ PG_NX_MASK;
+ if (!(pdpe & PG_ACCESSED_MASK)) {
+ pdpe |= PG_ACCESSED_MASK;
+ x86_stl_phys_notdirty(cs, pdpe_addr, pdpe);
+ }
+ if (pdpe & PG_PSE_MASK) {
+ /* 1 GB page */
+ page_size = 1024 * 1024 * 1024;
+ pte_addr = pdpe_addr;
+ pte = pdpe;
+ goto do_check_protect;
+ }
+ } else
+#endif
+ {
+ /* XXX: load them when cr3 is loaded ? */
+ pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
+ env->a20_mask;
+ pdpe = x86_ldq_phys(cs, pdpe_addr);
+ if (!(pdpe & PG_PRESENT_MASK)) {
+ goto do_fault;
+ }
+ rsvd_mask |= PG_HI_USER_MASK;
+ if (pdpe & (rsvd_mask | PG_NX_MASK)) {
+ goto do_fault_rsvd;
+ }
+ ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK;
+ }
+
+ pde_addr = ((pdpe & PG_ADDRESS_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pde = x86_ldq_phys(cs, pde_addr);
+ if (!(pde & PG_PRESENT_MASK)) {
+ goto do_fault;
+ }
+ if (pde & rsvd_mask) {
+ goto do_fault_rsvd;
+ }
+ ptep &= pde ^ PG_NX_MASK;
+ if (pde & PG_PSE_MASK) {
+ /* 2 MB page */
+ page_size = 2048 * 1024;
+ pte_addr = pde_addr;
+ pte = pde;
+ goto do_check_protect;
+ }
+ /* 4 KB page */
+ if (!(pde & PG_ACCESSED_MASK)) {
+ pde |= PG_ACCESSED_MASK;
+ x86_stl_phys_notdirty(cs, pde_addr, pde);
+ }
+ pte_addr = ((pde & PG_ADDRESS_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pte = x86_ldq_phys(cs, pte_addr);
+ if (!(pte & PG_PRESENT_MASK)) {
+ goto do_fault;
+ }
+ if (pte & rsvd_mask) {
+ goto do_fault_rsvd;
+ }
+ /* combine pde and pte nx, user and rw protections */
+ ptep &= pte ^ PG_NX_MASK;
+ page_size = 4096;
+ } else {
+ uint32_t pde;
+
+ /* page directory entry */
+ pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
+ env->a20_mask;
+ pde = x86_ldl_phys(cs, pde_addr);
+ if (!(pde & PG_PRESENT_MASK)) {
+ goto do_fault;
+ }
+ ptep = pde | PG_NX_MASK;
+
+ /* if PSE bit is set, then we use a 4MB page */
+ if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
+ page_size = 4096 * 1024;
+ pte_addr = pde_addr;
+
+ /* Bits 20-13 provide bits 39-32 of the address, bit 21 is reserved.
+ * Leave bits 20-13 in place for setting accessed/dirty bits below.
+ */
+ pte = pde | ((pde & 0x1fe000) << (32 - 13));
+ rsvd_mask = 0x200000;
+ goto do_check_protect_pse36;
+ }
+
+ if (!(pde & PG_ACCESSED_MASK)) {
+ pde |= PG_ACCESSED_MASK;
+ x86_stl_phys_notdirty(cs, pde_addr, pde);
+ }
+
+ /* page directory entry */
+ pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
+ env->a20_mask;
+ pte = x86_ldl_phys(cs, pte_addr);
+ if (!(pte & PG_PRESENT_MASK)) {
+ goto do_fault;
+ }
+ /* combine pde and pte user and rw protections */
+ ptep &= pte | PG_NX_MASK;
+ page_size = 4096;
+ rsvd_mask = 0;
+ }
+
+do_check_protect:
+ rsvd_mask |= (page_size - 1) & PG_ADDRESS_MASK & ~PG_PSE_PAT_MASK;
+do_check_protect_pse36:
+ if (pte & rsvd_mask) {
+ goto do_fault_rsvd;
+ }
+ ptep ^= PG_NX_MASK;
+ if ((ptep & PG_NX_MASK) && is_write1 == 2) {
+ goto do_fault_protect;
+ }
+ switch (mmu_idx) {
+ case MMU_USER_IDX:
+ if (!(ptep & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
+ if (is_write && !(ptep & PG_RW_MASK)) {
+ goto do_fault_protect;
+ }
+ break;
+
+ case MMU_KSMAP_IDX:
+ if (is_write1 != 2 && (ptep & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
+ /* fall through */
+ case MMU_KNOSMAP_IDX:
+ if (is_write1 == 2 && (env->cr[4] & CR4_SMEP_MASK) &&
+ (ptep & PG_USER_MASK)) {
+ goto do_fault_protect;
+ }
+ if ((env->cr[0] & CR0_WP_MASK) &&
+ is_write && !(ptep & PG_RW_MASK)) {
+ goto do_fault_protect;
+ }
+ break;
+
+ default: /* cannot happen */
+ break;
+ }
+ is_dirty = is_write && !(pte & PG_DIRTY_MASK);
+ if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
+ pte |= PG_ACCESSED_MASK;
+ if (is_dirty) {
+ pte |= PG_DIRTY_MASK;
+ }
+ x86_stl_phys_notdirty(cs, pte_addr, pte);
+ }
+
+ /* the page can be put in the TLB */
+ prot = PAGE_READ;
+ if (!(ptep & PG_NX_MASK) &&
+ (mmu_idx == MMU_USER_IDX ||
+ !((env->cr[4] & CR4_SMEP_MASK) && (ptep & PG_USER_MASK)))) {
+ prot |= PAGE_EXEC;
+ }
+ if (pte & PG_DIRTY_MASK) {
+ /* only set write access if already dirty... otherwise wait
+ for dirty access */
+ if (is_user) {
+ if (ptep & PG_RW_MASK)
+ prot |= PAGE_WRITE;
+ } else {
+ if (!(env->cr[0] & CR0_WP_MASK) ||
+ (ptep & PG_RW_MASK))
+ prot |= PAGE_WRITE;
+ }
+ }
+ do_mapping:
+ pte = pte & env->a20_mask;
+
+ /* align to page_size */
+ pte &= PG_ADDRESS_MASK & ~(page_size - 1);
+
+ /* Even if 4MB pages, we map only one 4KB page in the cache to
+ avoid filling it too fast */
+ vaddr = addr & TARGET_PAGE_MASK;
+ page_offset = vaddr & (page_size - 1);
+ paddr = pte + page_offset;
+
+ tlb_set_page_with_attrs(cs, vaddr, paddr, cpu_get_mem_attrs(env),
+ prot, mmu_idx, page_size);
+ return 0;
+ do_fault_rsvd:
+ error_code |= PG_ERROR_RSVD_MASK;
+ do_fault_protect:
+ error_code |= PG_ERROR_P_MASK;
+ do_fault:
+ error_code |= (is_write << PG_ERROR_W_BIT);
+ if (is_user)
+ error_code |= PG_ERROR_U_MASK;
+ if (is_write1 == 2 &&
+ (((env->efer & MSR_EFER_NXE) &&
+ (env->cr[4] & CR4_PAE_MASK)) ||
+ (env->cr[4] & CR4_SMEP_MASK)))
+ error_code |= PG_ERROR_I_D_MASK;
+ if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) {
+ /* cr2 is not modified in case of exceptions */
+ x86_stq_phys(cs,
+ env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
+ addr);
+ } else {
+ env->cr[2] = addr;
+ }
+ env->error_code = error_code;
+ cs->exception_index = EXCP0E_PAGE;
+ return 1;
+}
+
+hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+ target_ulong pde_addr, pte_addr;
+ uint64_t pte;
+ uint32_t page_offset;
+ int page_size;
+
+ if (!(env->cr[0] & CR0_PG_MASK)) {
+ pte = addr & env->a20_mask;
+ page_size = 4096;
+ } else if (env->cr[4] & CR4_PAE_MASK) {
+ target_ulong pdpe_addr;
+ uint64_t pde, pdpe;
+
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ uint64_t pml4e_addr, pml4e;
+ int32_t sext;
+
+ /* test virtual address sign extension */
+ sext = (int64_t)addr >> 47;
+ if (sext != 0 && sext != -1) {
+ return -1;
+ }
+ pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) &
+ env->a20_mask;
+ pml4e = x86_ldq_phys(cs, pml4e_addr);
+ if (!(pml4e & PG_PRESENT_MASK)) {
+ return -1;
+ }
+ pdpe_addr = ((pml4e & PG_ADDRESS_MASK) +
+ (((addr >> 30) & 0x1ff) << 3)) & env->a20_mask;
+ pdpe = x86_ldq_phys(cs, pdpe_addr);
+ if (!(pdpe & PG_PRESENT_MASK)) {
+ return -1;
+ }
+ if (pdpe & PG_PSE_MASK) {
+ page_size = 1024 * 1024 * 1024;
+ pte = pdpe;
+ goto out;
+ }
+
+ } else
+#endif
+ {
+ pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
+ env->a20_mask;
+ pdpe = x86_ldq_phys(cs, pdpe_addr);
+ if (!(pdpe & PG_PRESENT_MASK))
+ return -1;
+ }
+
+ pde_addr = ((pdpe & PG_ADDRESS_MASK) +
+ (((addr >> 21) & 0x1ff) << 3)) & env->a20_mask;
+ pde = x86_ldq_phys(cs, pde_addr);
+ if (!(pde & PG_PRESENT_MASK)) {
+ return -1;
+ }
+ if (pde & PG_PSE_MASK) {
+ /* 2 MB page */
+ page_size = 2048 * 1024;
+ pte = pde;
+ } else {
+ /* 4 KB page */
+ pte_addr = ((pde & PG_ADDRESS_MASK) +
+ (((addr >> 12) & 0x1ff) << 3)) & env->a20_mask;
+ page_size = 4096;
+ pte = x86_ldq_phys(cs, pte_addr);
+ }
+ if (!(pte & PG_PRESENT_MASK)) {
+ return -1;
+ }
+ } else {
+ uint32_t pde;
+
+ /* page directory entry */
+ pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
+ pde = x86_ldl_phys(cs, pde_addr);
+ if (!(pde & PG_PRESENT_MASK))
+ return -1;
+ if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
+ pte = pde | ((pde & 0x1fe000) << (32 - 13));
+ page_size = 4096 * 1024;
+ } else {
+ /* page directory entry */
+ pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
+ pte = x86_ldl_phys(cs, pte_addr);
+ if (!(pte & PG_PRESENT_MASK)) {
+ return -1;
+ }
+ page_size = 4096;
+ }
+ pte = pte & env->a20_mask;
+ }
+
+#ifdef TARGET_X86_64
+out:
+#endif
+ pte &= PG_ADDRESS_MASK & ~(page_size - 1);
+ page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
+ return pte | page_offset;
+}
+
+void hw_breakpoint_insert(CPUX86State *env, int index)
+{
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ int type = 0, err = 0;
+
+ switch (hw_breakpoint_type(env->dr[7], index)) {
+ case DR7_TYPE_BP_INST:
+ if (hw_breakpoint_enabled(env->dr[7], index)) {
+ err = cpu_breakpoint_insert(cs, env->dr[index], BP_CPU,
+ &env->cpu_breakpoint[index]);
+ }
+ break;
+ case DR7_TYPE_DATA_WR:
+ type = BP_CPU | BP_MEM_WRITE;
+ break;
+ case DR7_TYPE_IO_RW:
+ /* No support for I/O watchpoints yet */
+ break;
+ case DR7_TYPE_DATA_RW:
+ type = BP_CPU | BP_MEM_ACCESS;
+ break;
+ }
+
+ if (type != 0) {
+ err = cpu_watchpoint_insert(cs, env->dr[index],
+ hw_breakpoint_len(env->dr[7], index),
+ type, &env->cpu_watchpoint[index]);
+ }
+
+ if (err) {
+ env->cpu_breakpoint[index] = NULL;
+ }
+}
+
+void hw_breakpoint_remove(CPUX86State *env, int index)
+{
+ CPUState *cs;
+
+ if (!env->cpu_breakpoint[index]) {
+ return;
+ }
+ cs = CPU(x86_env_get_cpu(env));
+ switch (hw_breakpoint_type(env->dr[7], index)) {
+ case DR7_TYPE_BP_INST:
+ if (hw_breakpoint_enabled(env->dr[7], index)) {
+ cpu_breakpoint_remove_by_ref(cs, env->cpu_breakpoint[index]);
+ }
+ break;
+ case DR7_TYPE_DATA_WR:
+ case DR7_TYPE_DATA_RW:
+ cpu_watchpoint_remove_by_ref(cs, env->cpu_watchpoint[index]);
+ break;
+ case DR7_TYPE_IO_RW:
+ /* No support for I/O watchpoints yet */
+ break;
+ }
+}
+
+bool check_hw_breakpoints(CPUX86State *env, bool force_dr6_update)
+{
+ target_ulong dr6;
+ int reg;
+ bool hit_enabled = false;
+
+ dr6 = env->dr[6] & ~0xf;
+ for (reg = 0; reg < DR7_MAX_BP; reg++) {
+ bool bp_match = false;
+ bool wp_match = false;
+
+ switch (hw_breakpoint_type(env->dr[7], reg)) {
+ case DR7_TYPE_BP_INST:
+ if (env->dr[reg] == env->eip) {
+ bp_match = true;
+ }
+ break;
+ case DR7_TYPE_DATA_WR:
+ case DR7_TYPE_DATA_RW:
+ if (env->cpu_watchpoint[reg] &&
+ env->cpu_watchpoint[reg]->flags & BP_WATCHPOINT_HIT) {
+ wp_match = true;
+ }
+ break;
+ case DR7_TYPE_IO_RW:
+ break;
+ }
+ if (bp_match || wp_match) {
+ dr6 |= 1 << reg;
+ if (hw_breakpoint_enabled(env->dr[7], reg)) {
+ hit_enabled = true;
+ }
+ }
+ }
+
+ if (hit_enabled || force_dr6_update) {
+ env->dr[6] = dr6;
+ }
+
+ return hit_enabled;
+}
+
+void breakpoint_handler(CPUState *cs)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+ CPUBreakpoint *bp;
+
+ if (cs->watchpoint_hit) {
+ if (cs->watchpoint_hit->flags & BP_CPU) {
+ cs->watchpoint_hit = NULL;
+ if (check_hw_breakpoints(env, false)) {
+ raise_exception(env, EXCP01_DB);
+ } else {
+ cpu_resume_from_signal(cs, NULL);
+ }
+ }
+ } else {
+ QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
+ if (bp->pc == env->eip) {
+ if (bp->flags & BP_CPU) {
+ check_hw_breakpoints(env, true);
+ raise_exception(env, EXCP01_DB);
+ }
+ break;
+ }
+ }
+ }
+}
+
+typedef struct MCEInjectionParams {
+ Monitor *mon;
+ X86CPU *cpu;
+ int bank;
+ uint64_t status;
+ uint64_t mcg_status;
+ uint64_t addr;
+ uint64_t misc;
+ int flags;
+} MCEInjectionParams;
+
+static void do_inject_x86_mce(void *data)
+{
+ MCEInjectionParams *params = data;
+ CPUX86State *cenv = ¶ms->cpu->env;
+ CPUState *cpu = CPU(params->cpu);
+ uint64_t *banks = cenv->mce_banks + 4 * params->bank;
+
+ cpu_synchronize_state(cpu);
+
+ /*
+ * If there is an MCE exception being processed, ignore this SRAO MCE
+ * unless unconditional injection was requested.
+ */
+ if (!(params->flags & MCE_INJECT_UNCOND_AO)
+ && !(params->status & MCI_STATUS_AR)
+ && (cenv->mcg_status & MCG_STATUS_MCIP)) {
+ return;
+ }
+
+ if (params->status & MCI_STATUS_UC) {
+ /*
+ * if MSR_MCG_CTL is not all 1s, the uncorrected error
+ * reporting is disabled
+ */
+ if ((cenv->mcg_cap & MCG_CTL_P) && cenv->mcg_ctl != ~(uint64_t)0) {
+ monitor_printf(params->mon,
+ "CPU %d: Uncorrected error reporting disabled\n",
+ cpu->cpu_index);
+ return;
+ }
+
+ /*
+ * if MSR_MCi_CTL is not all 1s, the uncorrected error
+ * reporting is disabled for the bank
+ */
+ if (banks[0] != ~(uint64_t)0) {
+ monitor_printf(params->mon,
+ "CPU %d: Uncorrected error reporting disabled for"
+ " bank %d\n",
+ cpu->cpu_index, params->bank);
+ return;
+ }
+
+ if ((cenv->mcg_status & MCG_STATUS_MCIP) ||
+ !(cenv->cr[4] & CR4_MCE_MASK)) {
+ monitor_printf(params->mon,
+ "CPU %d: Previous MCE still in progress, raising"
+ " triple fault\n",
+ cpu->cpu_index);
+ qemu_log_mask(CPU_LOG_RESET, "Triple fault\n");
+ qemu_system_reset_request();
+ return;
+ }
+ if (banks[1] & MCI_STATUS_VAL) {
+ params->status |= MCI_STATUS_OVER;
+ }
+ banks[2] = params->addr;
+ banks[3] = params->misc;
+ cenv->mcg_status = params->mcg_status;
+ banks[1] = params->status;
+ cpu_interrupt(cpu, CPU_INTERRUPT_MCE);
+ } else if (!(banks[1] & MCI_STATUS_VAL)
+ || !(banks[1] & MCI_STATUS_UC)) {
+ if (banks[1] & MCI_STATUS_VAL) {
+ params->status |= MCI_STATUS_OVER;
+ }
+ banks[2] = params->addr;
+ banks[3] = params->misc;
+ banks[1] = params->status;
+ } else {
+ banks[1] |= MCI_STATUS_OVER;
+ }
+}
+
+void cpu_x86_inject_mce(Monitor *mon, X86CPU *cpu, int bank,
+ uint64_t status, uint64_t mcg_status, uint64_t addr,
+ uint64_t misc, int flags)
+{
+ CPUState *cs = CPU(cpu);
+ CPUX86State *cenv = &cpu->env;
+ MCEInjectionParams params = {
+ .mon = mon,
+ .cpu = cpu,
+ .bank = bank,
+ .status = status,
+ .mcg_status = mcg_status,
+ .addr = addr,
+ .misc = misc,
+ .flags = flags,
+ };
+ unsigned bank_num = cenv->mcg_cap & 0xff;
+
+ if (!cenv->mcg_cap) {
+ monitor_printf(mon, "MCE injection not supported\n");
+ return;
+ }
+ if (bank >= bank_num) {
+ monitor_printf(mon, "Invalid MCE bank number\n");
+ return;
+ }
+ if (!(status & MCI_STATUS_VAL)) {
+ monitor_printf(mon, "Invalid MCE status code\n");
+ return;
+ }
+ if ((flags & MCE_INJECT_BROADCAST)
+ && !cpu_x86_support_mca_broadcast(cenv)) {
+ monitor_printf(mon, "Guest CPU does not support MCA broadcast\n");
+ return;
+ }
+
+ run_on_cpu(cs, do_inject_x86_mce, ¶ms);
+ if (flags & MCE_INJECT_BROADCAST) {
+ CPUState *other_cs;
+
+ params.bank = 1;
+ params.status = MCI_STATUS_VAL | MCI_STATUS_UC;
+ params.mcg_status = MCG_STATUS_MCIP | MCG_STATUS_RIPV;
+ params.addr = 0;
+ params.misc = 0;
+ CPU_FOREACH(other_cs) {
+ if (other_cs == cs) {
+ continue;
+ }
+ params.cpu = X86_CPU(other_cs);
+ run_on_cpu(other_cs, do_inject_x86_mce, ¶ms);
+ }
+ }
+}
+
+void cpu_report_tpr_access(CPUX86State *env, TPRAccess access)
+{
+ X86CPU *cpu = x86_env_get_cpu(env);
+ CPUState *cs = CPU(cpu);
+
+ if (kvm_enabled()) {
+ env->tpr_access_type = access;
+
+ cpu_interrupt(cs, CPU_INTERRUPT_TPR);
+ } else {
+ cpu_restore_state(cs, cs->mem_io_pc);
+
+ apic_handle_tpr_access_report(cpu->apic_state, env->eip, access);
+ }
+}
+#endif /* !CONFIG_USER_ONLY */
+
+int cpu_x86_get_descr_debug(CPUX86State *env, unsigned int selector,
+ target_ulong *base, unsigned int *limit,
+ unsigned int *flags)
+{
+ X86CPU *cpu = x86_env_get_cpu(env);
+ CPUState *cs = CPU(cpu);
+ SegmentCache *dt;
+ target_ulong ptr;
+ uint32_t e1, e2;
+ int index;
+
+ if (selector & 0x4)
+ dt = &env->ldt;
+ else
+ dt = &env->gdt;
+ index = selector & ~7;
+ ptr = dt->base + index;
+ if ((index + 7) > dt->limit
+ || cpu_memory_rw_debug(cs, ptr, (uint8_t *)&e1, sizeof(e1), 0) != 0
+ || cpu_memory_rw_debug(cs, ptr+4, (uint8_t *)&e2, sizeof(e2), 0) != 0)
+ return 0;
+
+ *base = ((e1 >> 16) | ((e2 & 0xff) << 16) | (e2 & 0xff000000));
+ *limit = (e1 & 0xffff) | (e2 & 0x000f0000);
+ if (e2 & DESC_G_MASK)
+ *limit = (*limit << 12) | 0xfff;
+ *flags = e2;
+
+ return 1;
+}
+
+#if !defined(CONFIG_USER_ONLY)
+void do_cpu_init(X86CPU *cpu)
+{
+ CPUState *cs = CPU(cpu);
+ CPUX86State *env = &cpu->env;
+ CPUX86State *save = g_new(CPUX86State, 1);
+ int sipi = cs->interrupt_request & CPU_INTERRUPT_SIPI;
+
+ *save = *env;
+
+ cpu_reset(cs);
+ cs->interrupt_request = sipi;
+ memcpy(&env->start_init_save, &save->start_init_save,
+ offsetof(CPUX86State, end_init_save) -
+ offsetof(CPUX86State, start_init_save));
+ g_free(save);
+
+ if (kvm_enabled()) {
+ kvm_arch_do_init_vcpu(cpu);
+ }
+ apic_init_reset(cpu->apic_state);
+}
+
+void do_cpu_sipi(X86CPU *cpu)
+{
+ apic_sipi(cpu->apic_state);
+}
+#else
+void do_cpu_init(X86CPU *cpu)
+{
+}
+void do_cpu_sipi(X86CPU *cpu)
+{
+}
+#endif
+
+/* Frob eflags into and out of the CPU temporary format. */
+
+void x86_cpu_exec_enter(CPUState *cs)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ CC_SRC = env->eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+ env->df = 1 - (2 * ((env->eflags >> 10) & 1));
+ CC_OP = CC_OP_EFLAGS;
+ env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+}
+
+void x86_cpu_exec_exit(CPUState *cs)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ env->eflags = cpu_compute_eflags(env);
+}
+
+#ifndef CONFIG_USER_ONLY
+uint8_t x86_ldub_phys(CPUState *cs, hwaddr addr)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ return address_space_ldub(cs->as, addr,
+ cpu_get_mem_attrs(env),
+ NULL);
+}
+
+uint32_t x86_lduw_phys(CPUState *cs, hwaddr addr)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ return address_space_lduw(cs->as, addr,
+ cpu_get_mem_attrs(env),
+ NULL);
+}
+
+uint32_t x86_ldl_phys(CPUState *cs, hwaddr addr)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ return address_space_ldl(cs->as, addr,
+ cpu_get_mem_attrs(env),
+ NULL);
+}
+
+uint64_t x86_ldq_phys(CPUState *cs, hwaddr addr)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ return address_space_ldq(cs->as, addr,
+ cpu_get_mem_attrs(env),
+ NULL);
+}
+
+void x86_stb_phys(CPUState *cs, hwaddr addr, uint8_t val)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ address_space_stb(cs->as, addr, val,
+ cpu_get_mem_attrs(env),
+ NULL);
+}
+
+void x86_stl_phys_notdirty(CPUState *cs, hwaddr addr, uint32_t val)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ address_space_stl_notdirty(cs->as, addr, val,
+ cpu_get_mem_attrs(env),
+ NULL);
+}
+
+void x86_stw_phys(CPUState *cs, hwaddr addr, uint32_t val)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ address_space_stw(cs->as, addr, val,
+ cpu_get_mem_attrs(env),
+ NULL);
+}
+
+void x86_stl_phys(CPUState *cs, hwaddr addr, uint32_t val)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ address_space_stl(cs->as, addr, val,
+ cpu_get_mem_attrs(env),
+ NULL);
+}
+
+void x86_stq_phys(CPUState *cs, hwaddr addr, uint64_t val)
+{
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
+
+ address_space_stq(cs->as, addr, val,
+ cpu_get_mem_attrs(env),
+ NULL);
+}
+#endif
Code Review / kvmfornfv.git / blobdiff