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/*
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* i386 helpers (without register variable usage)
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "cpu.h" |
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#include "kvm.h" |
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#ifndef CONFIG_USER_ONLY
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#include "sysemu.h" |
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#include "monitor.h" |
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#endif
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|
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//#define DEBUG_MMU
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static void cpu_x86_version(CPUX86State *env, int *family, int *model) |
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{ |
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int cpuver = env->cpuid_version;
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if (family == NULL || model == NULL) { |
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return;
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} |
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*family = (cpuver >> 8) & 0x0f; |
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*model = ((cpuver >> 12) & 0xf0) + ((cpuver >> 4) & 0x0f); |
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} |
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/* Broadcast MCA signal for processor version 06H_EH and above */
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int cpu_x86_support_mca_broadcast(CPUX86State *env)
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{ |
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int family = 0; |
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int model = 0; |
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cpu_x86_version(env, &family, &model); |
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if ((family == 6 && model >= 14) || family > 6) { |
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return 1; |
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} |
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|
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return 0; |
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} |
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/***********************************************************/
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/* x86 debug */
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static const char *cc_op_str[] = { |
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"DYNAMIC",
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"EFLAGS",
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"MULB",
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"MULW",
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"MULL",
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"MULQ",
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"ADDB",
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"ADDW",
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"ADDL",
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"ADDQ",
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"ADCB",
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"ADCW",
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"ADCL",
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"ADCQ",
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"SUBB",
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"SUBW",
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"SUBL",
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"SUBQ",
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"SBBB",
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"SBBW",
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"SBBL",
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"SBBQ",
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"LOGICB",
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"LOGICW",
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"LOGICL",
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"LOGICQ",
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"INCB",
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"INCW",
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"INCL",
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"INCQ",
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"DECB",
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"DECW",
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"DECL",
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"DECQ",
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"SHLB",
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"SHLW",
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"SHLL",
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"SHLQ",
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"SARB",
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"SARW",
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"SARL",
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"SARQ",
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}; |
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static void |
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cpu_x86_dump_seg_cache(CPUX86State *env, FILE *f, fprintf_function cpu_fprintf, |
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const char *name, struct SegmentCache *sc) |
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{ |
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#ifdef TARGET_X86_64
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if (env->hflags & HF_CS64_MASK) {
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cpu_fprintf(f, "%-3s=%04x %016" PRIx64 " %08x %08x", name, |
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sc->selector, sc->base, sc->limit, sc->flags & 0x00ffff00);
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} else
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#endif
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{ |
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cpu_fprintf(f, "%-3s=%04x %08x %08x %08x", name, sc->selector,
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(uint32_t)sc->base, sc->limit, sc->flags & 0x00ffff00);
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} |
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if (!(env->hflags & HF_PE_MASK) || !(sc->flags & DESC_P_MASK))
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goto done;
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cpu_fprintf(f, " DPL=%d ", (sc->flags & DESC_DPL_MASK) >> DESC_DPL_SHIFT);
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if (sc->flags & DESC_S_MASK) {
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if (sc->flags & DESC_CS_MASK) {
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cpu_fprintf(f, (sc->flags & DESC_L_MASK) ? "CS64" :
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((sc->flags & DESC_B_MASK) ? "CS32" : "CS16")); |
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cpu_fprintf(f, " [%c%c", (sc->flags & DESC_C_MASK) ? 'C' : '-', |
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(sc->flags & DESC_R_MASK) ? 'R' : '-'); |
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} else {
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cpu_fprintf(f, (sc->flags & DESC_B_MASK) ? "DS " : "DS16"); |
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cpu_fprintf(f, " [%c%c", (sc->flags & DESC_E_MASK) ? 'E' : '-', |
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(sc->flags & DESC_W_MASK) ? 'W' : '-'); |
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} |
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cpu_fprintf(f, "%c]", (sc->flags & DESC_A_MASK) ? 'A' : '-'); |
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} else {
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static const char *sys_type_name[2][16] = { |
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{ /* 32 bit mode */
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"Reserved", "TSS16-avl", "LDT", "TSS16-busy", |
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"CallGate16", "TaskGate", "IntGate16", "TrapGate16", |
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"Reserved", "TSS32-avl", "Reserved", "TSS32-busy", |
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"CallGate32", "Reserved", "IntGate32", "TrapGate32" |
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}, |
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{ /* 64 bit mode */
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"<hiword>", "Reserved", "LDT", "Reserved", "Reserved", |
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"Reserved", "Reserved", "Reserved", "Reserved", |
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"TSS64-avl", "Reserved", "TSS64-busy", "CallGate64", |
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"Reserved", "IntGate64", "TrapGate64" |
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} |
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}; |
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cpu_fprintf(f, "%s",
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sys_type_name[(env->hflags & HF_LMA_MASK) ? 1 : 0] |
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[(sc->flags & DESC_TYPE_MASK) |
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>> DESC_TYPE_SHIFT]); |
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} |
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done:
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cpu_fprintf(f, "\n");
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} |
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#define DUMP_CODE_BYTES_TOTAL 50 |
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#define DUMP_CODE_BYTES_BACKWARD 20 |
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void cpu_dump_state(CPUX86State *env, FILE *f, fprintf_function cpu_fprintf,
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int flags)
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{ |
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int eflags, i, nb;
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char cc_op_name[32]; |
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static const char *seg_name[6] = { "ES", "CS", "SS", "DS", "FS", "GS" }; |
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cpu_synchronize_state(env); |
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eflags = env->eflags; |
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#ifdef TARGET_X86_64
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if (env->hflags & HF_CS64_MASK) {
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cpu_fprintf(f, |
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"RAX=%016" PRIx64 " RBX=%016" PRIx64 " RCX=%016" PRIx64 " RDX=%016" PRIx64 "\n" |
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"RSI=%016" PRIx64 " RDI=%016" PRIx64 " RBP=%016" PRIx64 " RSP=%016" PRIx64 "\n" |
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"R8 =%016" PRIx64 " R9 =%016" PRIx64 " R10=%016" PRIx64 " R11=%016" PRIx64 "\n" |
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"R12=%016" PRIx64 " R13=%016" PRIx64 " R14=%016" PRIx64 " R15=%016" PRIx64 "\n" |
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"RIP=%016" PRIx64 " RFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n", |
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env->regs[R_EAX], |
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env->regs[R_EBX], |
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env->regs[R_ECX], |
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env->regs[R_EDX], |
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env->regs[R_ESI], |
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env->regs[R_EDI], |
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env->regs[R_EBP], |
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env->regs[R_ESP], |
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env->regs[8],
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env->regs[9],
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env->regs[10],
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env->regs[11],
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env->regs[12],
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env->regs[13],
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env->regs[14],
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env->regs[15],
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env->eip, eflags, |
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eflags & DF_MASK ? 'D' : '-', |
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eflags & CC_O ? 'O' : '-', |
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eflags & CC_S ? 'S' : '-', |
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eflags & CC_Z ? 'Z' : '-', |
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eflags & CC_A ? 'A' : '-', |
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eflags & CC_P ? 'P' : '-', |
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eflags & CC_C ? 'C' : '-', |
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env->hflags & HF_CPL_MASK, |
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(env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
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(env->a20_mask >> 20) & 1, |
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(env->hflags >> HF_SMM_SHIFT) & 1,
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env->halted); |
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} else
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#endif
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{ |
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cpu_fprintf(f, "EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
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"ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n"
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"EIP=%08x EFL=%08x [%c%c%c%c%c%c%c] CPL=%d II=%d A20=%d SMM=%d HLT=%d\n",
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(uint32_t)env->regs[R_EAX], |
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(uint32_t)env->regs[R_EBX], |
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(uint32_t)env->regs[R_ECX], |
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(uint32_t)env->regs[R_EDX], |
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(uint32_t)env->regs[R_ESI], |
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(uint32_t)env->regs[R_EDI], |
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(uint32_t)env->regs[R_EBP], |
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(uint32_t)env->regs[R_ESP], |
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(uint32_t)env->eip, eflags, |
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eflags & DF_MASK ? 'D' : '-', |
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eflags & CC_O ? 'O' : '-', |
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eflags & CC_S ? 'S' : '-', |
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eflags & CC_Z ? 'Z' : '-', |
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eflags & CC_A ? 'A' : '-', |
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eflags & CC_P ? 'P' : '-', |
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eflags & CC_C ? 'C' : '-', |
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env->hflags & HF_CPL_MASK, |
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(env->hflags >> HF_INHIBIT_IRQ_SHIFT) & 1,
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(env->a20_mask >> 20) & 1, |
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(env->hflags >> HF_SMM_SHIFT) & 1,
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env->halted); |
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} |
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for(i = 0; i < 6; i++) { |
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cpu_x86_dump_seg_cache(env, f, cpu_fprintf, seg_name[i], |
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&env->segs[i]); |
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} |
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cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "LDT", &env->ldt);
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cpu_x86_dump_seg_cache(env, f, cpu_fprintf, "TR", &env->tr);
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|
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#ifdef TARGET_X86_64
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if (env->hflags & HF_LMA_MASK) {
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cpu_fprintf(f, "GDT= %016" PRIx64 " %08x\n", |
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env->gdt.base, env->gdt.limit); |
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cpu_fprintf(f, "IDT= %016" PRIx64 " %08x\n", |
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env->idt.base, env->idt.limit); |
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cpu_fprintf(f, "CR0=%08x CR2=%016" PRIx64 " CR3=%016" PRIx64 " CR4=%08x\n", |
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(uint32_t)env->cr[0],
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env->cr[2],
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env->cr[3],
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(uint32_t)env->cr[4]);
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for(i = 0; i < 4; i++) |
266 |
cpu_fprintf(f, "DR%d=%016" PRIx64 " ", i, env->dr[i]); |
267 |
cpu_fprintf(f, "\nDR6=%016" PRIx64 " DR7=%016" PRIx64 "\n", |
268 |
env->dr[6], env->dr[7]); |
269 |
} else
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#endif
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{ |
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cpu_fprintf(f, "GDT= %08x %08x\n",
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(uint32_t)env->gdt.base, env->gdt.limit); |
274 |
cpu_fprintf(f, "IDT= %08x %08x\n",
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(uint32_t)env->idt.base, env->idt.limit); |
276 |
cpu_fprintf(f, "CR0=%08x CR2=%08x CR3=%08x CR4=%08x\n",
|
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(uint32_t)env->cr[0],
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(uint32_t)env->cr[2],
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(uint32_t)env->cr[3],
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(uint32_t)env->cr[4]);
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for(i = 0; i < 4; i++) { |
282 |
cpu_fprintf(f, "DR%d=" TARGET_FMT_lx " ", i, env->dr[i]); |
283 |
} |
284 |
cpu_fprintf(f, "\nDR6=" TARGET_FMT_lx " DR7=" TARGET_FMT_lx "\n", |
285 |
env->dr[6], env->dr[7]); |
286 |
} |
287 |
if (flags & X86_DUMP_CCOP) {
|
288 |
if ((unsigned)env->cc_op < CC_OP_NB) |
289 |
snprintf(cc_op_name, sizeof(cc_op_name), "%s", cc_op_str[env->cc_op]); |
290 |
else
|
291 |
snprintf(cc_op_name, sizeof(cc_op_name), "[%d]", env->cc_op); |
292 |
#ifdef TARGET_X86_64
|
293 |
if (env->hflags & HF_CS64_MASK) {
|
294 |
cpu_fprintf(f, "CCS=%016" PRIx64 " CCD=%016" PRIx64 " CCO=%-8s\n", |
295 |
env->cc_src, env->cc_dst, |
296 |
cc_op_name); |
297 |
} else
|
298 |
#endif
|
299 |
{ |
300 |
cpu_fprintf(f, "CCS=%08x CCD=%08x CCO=%-8s\n",
|
301 |
(uint32_t)env->cc_src, (uint32_t)env->cc_dst, |
302 |
cc_op_name); |
303 |
} |
304 |
} |
305 |
cpu_fprintf(f, "EFER=%016" PRIx64 "\n", env->efer); |
306 |
if (flags & X86_DUMP_FPU) {
|
307 |
int fptag;
|
308 |
fptag = 0;
|
309 |
for(i = 0; i < 8; i++) { |
310 |
fptag |= ((!env->fptags[i]) << i); |
311 |
} |
312 |
cpu_fprintf(f, "FCW=%04x FSW=%04x [ST=%d] FTW=%02x MXCSR=%08x\n",
|
313 |
env->fpuc, |
314 |
(env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11, |
315 |
env->fpstt, |
316 |
fptag, |
317 |
env->mxcsr); |
318 |
for(i=0;i<8;i++) { |
319 |
CPU_LDoubleU u; |
320 |
u.d = env->fpregs[i].d; |
321 |
cpu_fprintf(f, "FPR%d=%016" PRIx64 " %04x", |
322 |
i, u.l.lower, u.l.upper); |
323 |
if ((i & 1) == 1) |
324 |
cpu_fprintf(f, "\n");
|
325 |
else
|
326 |
cpu_fprintf(f, " ");
|
327 |
} |
328 |
if (env->hflags & HF_CS64_MASK)
|
329 |
nb = 16;
|
330 |
else
|
331 |
nb = 8;
|
332 |
for(i=0;i<nb;i++) { |
333 |
cpu_fprintf(f, "XMM%02d=%08x%08x%08x%08x",
|
334 |
i, |
335 |
env->xmm_regs[i].XMM_L(3),
|
336 |
env->xmm_regs[i].XMM_L(2),
|
337 |
env->xmm_regs[i].XMM_L(1),
|
338 |
env->xmm_regs[i].XMM_L(0));
|
339 |
if ((i & 1) == 1) |
340 |
cpu_fprintf(f, "\n");
|
341 |
else
|
342 |
cpu_fprintf(f, " ");
|
343 |
} |
344 |
} |
345 |
if (flags & CPU_DUMP_CODE) {
|
346 |
target_ulong base = env->segs[R_CS].base + env->eip; |
347 |
target_ulong offs = MIN(env->eip, DUMP_CODE_BYTES_BACKWARD); |
348 |
uint8_t code; |
349 |
char codestr[3]; |
350 |
|
351 |
cpu_fprintf(f, "Code=");
|
352 |
for (i = 0; i < DUMP_CODE_BYTES_TOTAL; i++) { |
353 |
if (cpu_memory_rw_debug(env, base - offs + i, &code, 1, 0) == 0) { |
354 |
snprintf(codestr, sizeof(codestr), "%02x", code); |
355 |
} else {
|
356 |
snprintf(codestr, sizeof(codestr), "??"); |
357 |
} |
358 |
cpu_fprintf(f, "%s%s%s%s", i > 0 ? " " : "", |
359 |
i == offs ? "<" : "", codestr, i == offs ? ">" : ""); |
360 |
} |
361 |
cpu_fprintf(f, "\n");
|
362 |
} |
363 |
} |
364 |
|
365 |
/***********************************************************/
|
366 |
/* x86 mmu */
|
367 |
/* XXX: add PGE support */
|
368 |
|
369 |
void cpu_x86_set_a20(CPUX86State *env, int a20_state) |
370 |
{ |
371 |
a20_state = (a20_state != 0);
|
372 |
if (a20_state != ((env->a20_mask >> 20) & 1)) { |
373 |
#if defined(DEBUG_MMU)
|
374 |
printf("A20 update: a20=%d\n", a20_state);
|
375 |
#endif
|
376 |
/* if the cpu is currently executing code, we must unlink it and
|
377 |
all the potentially executing TB */
|
378 |
cpu_interrupt(env, CPU_INTERRUPT_EXITTB); |
379 |
|
380 |
/* when a20 is changed, all the MMU mappings are invalid, so
|
381 |
we must flush everything */
|
382 |
tlb_flush(env, 1);
|
383 |
env->a20_mask = ~(1 << 20) | (a20_state << 20); |
384 |
} |
385 |
} |
386 |
|
387 |
void cpu_x86_update_cr0(CPUX86State *env, uint32_t new_cr0)
|
388 |
{ |
389 |
int pe_state;
|
390 |
|
391 |
#if defined(DEBUG_MMU)
|
392 |
printf("CR0 update: CR0=0x%08x\n", new_cr0);
|
393 |
#endif
|
394 |
if ((new_cr0 & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK)) !=
|
395 |
(env->cr[0] & (CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK))) {
|
396 |
tlb_flush(env, 1);
|
397 |
} |
398 |
|
399 |
#ifdef TARGET_X86_64
|
400 |
if (!(env->cr[0] & CR0_PG_MASK) && (new_cr0 & CR0_PG_MASK) && |
401 |
(env->efer & MSR_EFER_LME)) { |
402 |
/* enter in long mode */
|
403 |
/* XXX: generate an exception */
|
404 |
if (!(env->cr[4] & CR4_PAE_MASK)) |
405 |
return;
|
406 |
env->efer |= MSR_EFER_LMA; |
407 |
env->hflags |= HF_LMA_MASK; |
408 |
} else if ((env->cr[0] & CR0_PG_MASK) && !(new_cr0 & CR0_PG_MASK) && |
409 |
(env->efer & MSR_EFER_LMA)) { |
410 |
/* exit long mode */
|
411 |
env->efer &= ~MSR_EFER_LMA; |
412 |
env->hflags &= ~(HF_LMA_MASK | HF_CS64_MASK); |
413 |
env->eip &= 0xffffffff;
|
414 |
} |
415 |
#endif
|
416 |
env->cr[0] = new_cr0 | CR0_ET_MASK;
|
417 |
|
418 |
/* update PE flag in hidden flags */
|
419 |
pe_state = (env->cr[0] & CR0_PE_MASK);
|
420 |
env->hflags = (env->hflags & ~HF_PE_MASK) | (pe_state << HF_PE_SHIFT); |
421 |
/* ensure that ADDSEG is always set in real mode */
|
422 |
env->hflags |= ((pe_state ^ 1) << HF_ADDSEG_SHIFT);
|
423 |
/* update FPU flags */
|
424 |
env->hflags = (env->hflags & ~(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK)) | |
425 |
((new_cr0 << (HF_MP_SHIFT - 1)) & (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK));
|
426 |
} |
427 |
|
428 |
/* XXX: in legacy PAE mode, generate a GPF if reserved bits are set in
|
429 |
the PDPT */
|
430 |
void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3)
|
431 |
{ |
432 |
env->cr[3] = new_cr3;
|
433 |
if (env->cr[0] & CR0_PG_MASK) { |
434 |
#if defined(DEBUG_MMU)
|
435 |
printf("CR3 update: CR3=" TARGET_FMT_lx "\n", new_cr3); |
436 |
#endif
|
437 |
tlb_flush(env, 0);
|
438 |
} |
439 |
} |
440 |
|
441 |
void cpu_x86_update_cr4(CPUX86State *env, uint32_t new_cr4)
|
442 |
{ |
443 |
#if defined(DEBUG_MMU)
|
444 |
printf("CR4 update: CR4=%08x\n", (uint32_t)env->cr[4]); |
445 |
#endif
|
446 |
if ((new_cr4 & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK)) !=
|
447 |
(env->cr[4] & (CR4_PGE_MASK | CR4_PAE_MASK | CR4_PSE_MASK))) {
|
448 |
tlb_flush(env, 1);
|
449 |
} |
450 |
/* SSE handling */
|
451 |
if (!(env->cpuid_features & CPUID_SSE))
|
452 |
new_cr4 &= ~CR4_OSFXSR_MASK; |
453 |
if (new_cr4 & CR4_OSFXSR_MASK)
|
454 |
env->hflags |= HF_OSFXSR_MASK; |
455 |
else
|
456 |
env->hflags &= ~HF_OSFXSR_MASK; |
457 |
|
458 |
env->cr[4] = new_cr4;
|
459 |
} |
460 |
|
461 |
#if defined(CONFIG_USER_ONLY)
|
462 |
|
463 |
int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
|
464 |
int is_write, int mmu_idx) |
465 |
{ |
466 |
/* user mode only emulation */
|
467 |
is_write &= 1;
|
468 |
env->cr[2] = addr;
|
469 |
env->error_code = (is_write << PG_ERROR_W_BIT); |
470 |
env->error_code |= PG_ERROR_U_MASK; |
471 |
env->exception_index = EXCP0E_PAGE; |
472 |
return 1; |
473 |
} |
474 |
|
475 |
#else
|
476 |
|
477 |
/* XXX: This value should match the one returned by CPUID
|
478 |
* and in exec.c */
|
479 |
# if defined(TARGET_X86_64)
|
480 |
# define PHYS_ADDR_MASK 0xfffffff000LL |
481 |
# else
|
482 |
# define PHYS_ADDR_MASK 0xffffff000LL |
483 |
# endif
|
484 |
|
485 |
/* return value:
|
486 |
-1 = cannot handle fault
|
487 |
0 = nothing more to do
|
488 |
1 = generate PF fault
|
489 |
*/
|
490 |
int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
|
491 |
int is_write1, int mmu_idx) |
492 |
{ |
493 |
uint64_t ptep, pte; |
494 |
target_ulong pde_addr, pte_addr; |
495 |
int error_code, is_dirty, prot, page_size, is_write, is_user;
|
496 |
target_phys_addr_t paddr; |
497 |
uint32_t page_offset; |
498 |
target_ulong vaddr, virt_addr; |
499 |
|
500 |
is_user = mmu_idx == MMU_USER_IDX; |
501 |
#if defined(DEBUG_MMU)
|
502 |
printf("MMU fault: addr=" TARGET_FMT_lx " w=%d u=%d eip=" TARGET_FMT_lx "\n", |
503 |
addr, is_write1, is_user, env->eip); |
504 |
#endif
|
505 |
is_write = is_write1 & 1;
|
506 |
|
507 |
if (!(env->cr[0] & CR0_PG_MASK)) { |
508 |
pte = addr; |
509 |
virt_addr = addr & TARGET_PAGE_MASK; |
510 |
prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; |
511 |
page_size = 4096;
|
512 |
goto do_mapping;
|
513 |
} |
514 |
|
515 |
if (env->cr[4] & CR4_PAE_MASK) { |
516 |
uint64_t pde, pdpe; |
517 |
target_ulong pdpe_addr; |
518 |
|
519 |
#ifdef TARGET_X86_64
|
520 |
if (env->hflags & HF_LMA_MASK) {
|
521 |
uint64_t pml4e_addr, pml4e; |
522 |
int32_t sext; |
523 |
|
524 |
/* test virtual address sign extension */
|
525 |
sext = (int64_t)addr >> 47;
|
526 |
if (sext != 0 && sext != -1) { |
527 |
env->error_code = 0;
|
528 |
env->exception_index = EXCP0D_GPF; |
529 |
return 1; |
530 |
} |
531 |
|
532 |
pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) & |
533 |
env->a20_mask; |
534 |
pml4e = ldq_phys(pml4e_addr); |
535 |
if (!(pml4e & PG_PRESENT_MASK)) {
|
536 |
error_code = 0;
|
537 |
goto do_fault;
|
538 |
} |
539 |
if (!(env->efer & MSR_EFER_NXE) && (pml4e & PG_NX_MASK)) {
|
540 |
error_code = PG_ERROR_RSVD_MASK; |
541 |
goto do_fault;
|
542 |
} |
543 |
if (!(pml4e & PG_ACCESSED_MASK)) {
|
544 |
pml4e |= PG_ACCESSED_MASK; |
545 |
stl_phys_notdirty(pml4e_addr, pml4e); |
546 |
} |
547 |
ptep = pml4e ^ PG_NX_MASK; |
548 |
pdpe_addr = ((pml4e & PHYS_ADDR_MASK) + (((addr >> 30) & 0x1ff) << 3)) & |
549 |
env->a20_mask; |
550 |
pdpe = ldq_phys(pdpe_addr); |
551 |
if (!(pdpe & PG_PRESENT_MASK)) {
|
552 |
error_code = 0;
|
553 |
goto do_fault;
|
554 |
} |
555 |
if (!(env->efer & MSR_EFER_NXE) && (pdpe & PG_NX_MASK)) {
|
556 |
error_code = PG_ERROR_RSVD_MASK; |
557 |
goto do_fault;
|
558 |
} |
559 |
ptep &= pdpe ^ PG_NX_MASK; |
560 |
if (!(pdpe & PG_ACCESSED_MASK)) {
|
561 |
pdpe |= PG_ACCESSED_MASK; |
562 |
stl_phys_notdirty(pdpe_addr, pdpe); |
563 |
} |
564 |
} else
|
565 |
#endif
|
566 |
{ |
567 |
/* XXX: load them when cr3 is loaded ? */
|
568 |
pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) & |
569 |
env->a20_mask; |
570 |
pdpe = ldq_phys(pdpe_addr); |
571 |
if (!(pdpe & PG_PRESENT_MASK)) {
|
572 |
error_code = 0;
|
573 |
goto do_fault;
|
574 |
} |
575 |
ptep = PG_NX_MASK | PG_USER_MASK | PG_RW_MASK; |
576 |
} |
577 |
|
578 |
pde_addr = ((pdpe & PHYS_ADDR_MASK) + (((addr >> 21) & 0x1ff) << 3)) & |
579 |
env->a20_mask; |
580 |
pde = ldq_phys(pde_addr); |
581 |
if (!(pde & PG_PRESENT_MASK)) {
|
582 |
error_code = 0;
|
583 |
goto do_fault;
|
584 |
} |
585 |
if (!(env->efer & MSR_EFER_NXE) && (pde & PG_NX_MASK)) {
|
586 |
error_code = PG_ERROR_RSVD_MASK; |
587 |
goto do_fault;
|
588 |
} |
589 |
ptep &= pde ^ PG_NX_MASK; |
590 |
if (pde & PG_PSE_MASK) {
|
591 |
/* 2 MB page */
|
592 |
page_size = 2048 * 1024; |
593 |
ptep ^= PG_NX_MASK; |
594 |
if ((ptep & PG_NX_MASK) && is_write1 == 2) |
595 |
goto do_fault_protect;
|
596 |
if (is_user) {
|
597 |
if (!(ptep & PG_USER_MASK))
|
598 |
goto do_fault_protect;
|
599 |
if (is_write && !(ptep & PG_RW_MASK))
|
600 |
goto do_fault_protect;
|
601 |
} else {
|
602 |
if ((env->cr[0] & CR0_WP_MASK) && |
603 |
is_write && !(ptep & PG_RW_MASK)) |
604 |
goto do_fault_protect;
|
605 |
} |
606 |
is_dirty = is_write && !(pde & PG_DIRTY_MASK); |
607 |
if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
|
608 |
pde |= PG_ACCESSED_MASK; |
609 |
if (is_dirty)
|
610 |
pde |= PG_DIRTY_MASK; |
611 |
stl_phys_notdirty(pde_addr, pde); |
612 |
} |
613 |
/* align to page_size */
|
614 |
pte = pde & ((PHYS_ADDR_MASK & ~(page_size - 1)) | 0xfff); |
615 |
virt_addr = addr & ~(page_size - 1);
|
616 |
} else {
|
617 |
/* 4 KB page */
|
618 |
if (!(pde & PG_ACCESSED_MASK)) {
|
619 |
pde |= PG_ACCESSED_MASK; |
620 |
stl_phys_notdirty(pde_addr, pde); |
621 |
} |
622 |
pte_addr = ((pde & PHYS_ADDR_MASK) + (((addr >> 12) & 0x1ff) << 3)) & |
623 |
env->a20_mask; |
624 |
pte = ldq_phys(pte_addr); |
625 |
if (!(pte & PG_PRESENT_MASK)) {
|
626 |
error_code = 0;
|
627 |
goto do_fault;
|
628 |
} |
629 |
if (!(env->efer & MSR_EFER_NXE) && (pte & PG_NX_MASK)) {
|
630 |
error_code = PG_ERROR_RSVD_MASK; |
631 |
goto do_fault;
|
632 |
} |
633 |
/* combine pde and pte nx, user and rw protections */
|
634 |
ptep &= pte ^ PG_NX_MASK; |
635 |
ptep ^= PG_NX_MASK; |
636 |
if ((ptep & PG_NX_MASK) && is_write1 == 2) |
637 |
goto do_fault_protect;
|
638 |
if (is_user) {
|
639 |
if (!(ptep & PG_USER_MASK))
|
640 |
goto do_fault_protect;
|
641 |
if (is_write && !(ptep & PG_RW_MASK))
|
642 |
goto do_fault_protect;
|
643 |
} else {
|
644 |
if ((env->cr[0] & CR0_WP_MASK) && |
645 |
is_write && !(ptep & PG_RW_MASK)) |
646 |
goto do_fault_protect;
|
647 |
} |
648 |
is_dirty = is_write && !(pte & PG_DIRTY_MASK); |
649 |
if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
|
650 |
pte |= PG_ACCESSED_MASK; |
651 |
if (is_dirty)
|
652 |
pte |= PG_DIRTY_MASK; |
653 |
stl_phys_notdirty(pte_addr, pte); |
654 |
} |
655 |
page_size = 4096;
|
656 |
virt_addr = addr & ~0xfff;
|
657 |
pte = pte & (PHYS_ADDR_MASK | 0xfff);
|
658 |
} |
659 |
} else {
|
660 |
uint32_t pde; |
661 |
|
662 |
/* page directory entry */
|
663 |
pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & |
664 |
env->a20_mask; |
665 |
pde = ldl_phys(pde_addr); |
666 |
if (!(pde & PG_PRESENT_MASK)) {
|
667 |
error_code = 0;
|
668 |
goto do_fault;
|
669 |
} |
670 |
/* if PSE bit is set, then we use a 4MB page */
|
671 |
if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) { |
672 |
page_size = 4096 * 1024; |
673 |
if (is_user) {
|
674 |
if (!(pde & PG_USER_MASK))
|
675 |
goto do_fault_protect;
|
676 |
if (is_write && !(pde & PG_RW_MASK))
|
677 |
goto do_fault_protect;
|
678 |
} else {
|
679 |
if ((env->cr[0] & CR0_WP_MASK) && |
680 |
is_write && !(pde & PG_RW_MASK)) |
681 |
goto do_fault_protect;
|
682 |
} |
683 |
is_dirty = is_write && !(pde & PG_DIRTY_MASK); |
684 |
if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
|
685 |
pde |= PG_ACCESSED_MASK; |
686 |
if (is_dirty)
|
687 |
pde |= PG_DIRTY_MASK; |
688 |
stl_phys_notdirty(pde_addr, pde); |
689 |
} |
690 |
|
691 |
pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */ |
692 |
ptep = pte; |
693 |
virt_addr = addr & ~(page_size - 1);
|
694 |
} else {
|
695 |
if (!(pde & PG_ACCESSED_MASK)) {
|
696 |
pde |= PG_ACCESSED_MASK; |
697 |
stl_phys_notdirty(pde_addr, pde); |
698 |
} |
699 |
|
700 |
/* page directory entry */
|
701 |
pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & |
702 |
env->a20_mask; |
703 |
pte = ldl_phys(pte_addr); |
704 |
if (!(pte & PG_PRESENT_MASK)) {
|
705 |
error_code = 0;
|
706 |
goto do_fault;
|
707 |
} |
708 |
/* combine pde and pte user and rw protections */
|
709 |
ptep = pte & pde; |
710 |
if (is_user) {
|
711 |
if (!(ptep & PG_USER_MASK))
|
712 |
goto do_fault_protect;
|
713 |
if (is_write && !(ptep & PG_RW_MASK))
|
714 |
goto do_fault_protect;
|
715 |
} else {
|
716 |
if ((env->cr[0] & CR0_WP_MASK) && |
717 |
is_write && !(ptep & PG_RW_MASK)) |
718 |
goto do_fault_protect;
|
719 |
} |
720 |
is_dirty = is_write && !(pte & PG_DIRTY_MASK); |
721 |
if (!(pte & PG_ACCESSED_MASK) || is_dirty) {
|
722 |
pte |= PG_ACCESSED_MASK; |
723 |
if (is_dirty)
|
724 |
pte |= PG_DIRTY_MASK; |
725 |
stl_phys_notdirty(pte_addr, pte); |
726 |
} |
727 |
page_size = 4096;
|
728 |
virt_addr = addr & ~0xfff;
|
729 |
} |
730 |
} |
731 |
/* the page can be put in the TLB */
|
732 |
prot = PAGE_READ; |
733 |
if (!(ptep & PG_NX_MASK))
|
734 |
prot |= PAGE_EXEC; |
735 |
if (pte & PG_DIRTY_MASK) {
|
736 |
/* only set write access if already dirty... otherwise wait
|
737 |
for dirty access */
|
738 |
if (is_user) {
|
739 |
if (ptep & PG_RW_MASK)
|
740 |
prot |= PAGE_WRITE; |
741 |
} else {
|
742 |
if (!(env->cr[0] & CR0_WP_MASK) || |
743 |
(ptep & PG_RW_MASK)) |
744 |
prot |= PAGE_WRITE; |
745 |
} |
746 |
} |
747 |
do_mapping:
|
748 |
pte = pte & env->a20_mask; |
749 |
|
750 |
/* Even if 4MB pages, we map only one 4KB page in the cache to
|
751 |
avoid filling it too fast */
|
752 |
page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
|
753 |
paddr = (pte & TARGET_PAGE_MASK) + page_offset; |
754 |
vaddr = virt_addr + page_offset; |
755 |
|
756 |
tlb_set_page(env, vaddr, paddr, prot, mmu_idx, page_size); |
757 |
return 0; |
758 |
do_fault_protect:
|
759 |
error_code = PG_ERROR_P_MASK; |
760 |
do_fault:
|
761 |
error_code |= (is_write << PG_ERROR_W_BIT); |
762 |
if (is_user)
|
763 |
error_code |= PG_ERROR_U_MASK; |
764 |
if (is_write1 == 2 && |
765 |
(env->efer & MSR_EFER_NXE) && |
766 |
(env->cr[4] & CR4_PAE_MASK))
|
767 |
error_code |= PG_ERROR_I_D_MASK; |
768 |
if (env->intercept_exceptions & (1 << EXCP0E_PAGE)) { |
769 |
/* cr2 is not modified in case of exceptions */
|
770 |
stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
|
771 |
addr); |
772 |
} else {
|
773 |
env->cr[2] = addr;
|
774 |
} |
775 |
env->error_code = error_code; |
776 |
env->exception_index = EXCP0E_PAGE; |
777 |
return 1; |
778 |
} |
779 |
|
780 |
target_phys_addr_t cpu_get_phys_page_debug(CPUX86State *env, target_ulong addr) |
781 |
{ |
782 |
target_ulong pde_addr, pte_addr; |
783 |
uint64_t pte; |
784 |
target_phys_addr_t paddr; |
785 |
uint32_t page_offset; |
786 |
int page_size;
|
787 |
|
788 |
if (env->cr[4] & CR4_PAE_MASK) { |
789 |
target_ulong pdpe_addr; |
790 |
uint64_t pde, pdpe; |
791 |
|
792 |
#ifdef TARGET_X86_64
|
793 |
if (env->hflags & HF_LMA_MASK) {
|
794 |
uint64_t pml4e_addr, pml4e; |
795 |
int32_t sext; |
796 |
|
797 |
/* test virtual address sign extension */
|
798 |
sext = (int64_t)addr >> 47;
|
799 |
if (sext != 0 && sext != -1) |
800 |
return -1; |
801 |
|
802 |
pml4e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 39) & 0x1ff) << 3)) & |
803 |
env->a20_mask; |
804 |
pml4e = ldq_phys(pml4e_addr); |
805 |
if (!(pml4e & PG_PRESENT_MASK))
|
806 |
return -1; |
807 |
|
808 |
pdpe_addr = ((pml4e & ~0xfff & ~(PG_NX_MASK | PG_HI_USER_MASK)) +
|
809 |
(((addr >> 30) & 0x1ff) << 3)) & env->a20_mask; |
810 |
pdpe = ldq_phys(pdpe_addr); |
811 |
if (!(pdpe & PG_PRESENT_MASK))
|
812 |
return -1; |
813 |
} else
|
814 |
#endif
|
815 |
{ |
816 |
pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) & |
817 |
env->a20_mask; |
818 |
pdpe = ldq_phys(pdpe_addr); |
819 |
if (!(pdpe & PG_PRESENT_MASK))
|
820 |
return -1; |
821 |
} |
822 |
|
823 |
pde_addr = ((pdpe & ~0xfff & ~(PG_NX_MASK | PG_HI_USER_MASK)) +
|
824 |
(((addr >> 21) & 0x1ff) << 3)) & env->a20_mask; |
825 |
pde = ldq_phys(pde_addr); |
826 |
if (!(pde & PG_PRESENT_MASK)) {
|
827 |
return -1; |
828 |
} |
829 |
if (pde & PG_PSE_MASK) {
|
830 |
/* 2 MB page */
|
831 |
page_size = 2048 * 1024; |
832 |
pte = pde & ~( (page_size - 1) & ~0xfff); /* align to page_size */ |
833 |
} else {
|
834 |
/* 4 KB page */
|
835 |
pte_addr = ((pde & ~0xfff & ~(PG_NX_MASK | PG_HI_USER_MASK)) +
|
836 |
(((addr >> 12) & 0x1ff) << 3)) & env->a20_mask; |
837 |
page_size = 4096;
|
838 |
pte = ldq_phys(pte_addr); |
839 |
} |
840 |
pte &= ~(PG_NX_MASK | PG_HI_USER_MASK); |
841 |
if (!(pte & PG_PRESENT_MASK))
|
842 |
return -1; |
843 |
} else {
|
844 |
uint32_t pde; |
845 |
|
846 |
if (!(env->cr[0] & CR0_PG_MASK)) { |
847 |
pte = addr; |
848 |
page_size = 4096;
|
849 |
} else {
|
850 |
/* page directory entry */
|
851 |
pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask; |
852 |
pde = ldl_phys(pde_addr); |
853 |
if (!(pde & PG_PRESENT_MASK))
|
854 |
return -1; |
855 |
if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) { |
856 |
pte = pde & ~0x003ff000; /* align to 4MB */ |
857 |
page_size = 4096 * 1024; |
858 |
} else {
|
859 |
/* page directory entry */
|
860 |
pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask; |
861 |
pte = ldl_phys(pte_addr); |
862 |
if (!(pte & PG_PRESENT_MASK))
|
863 |
return -1; |
864 |
page_size = 4096;
|
865 |
} |
866 |
} |
867 |
pte = pte & env->a20_mask; |
868 |
} |
869 |
|
870 |
page_offset = (addr & TARGET_PAGE_MASK) & (page_size - 1);
|
871 |
paddr = (pte & TARGET_PAGE_MASK) + page_offset; |
872 |
return paddr;
|
873 |
} |
874 |
|
875 |
void hw_breakpoint_insert(CPUX86State *env, int index) |
876 |
{ |
877 |
int type, err = 0; |
878 |
|
879 |
switch (hw_breakpoint_type(env->dr[7], index)) { |
880 |
case 0: |
881 |
if (hw_breakpoint_enabled(env->dr[7], index)) |
882 |
err = cpu_breakpoint_insert(env, env->dr[index], BP_CPU, |
883 |
&env->cpu_breakpoint[index]); |
884 |
break;
|
885 |
case 1: |
886 |
type = BP_CPU | BP_MEM_WRITE; |
887 |
goto insert_wp;
|
888 |
case 2: |
889 |
/* No support for I/O watchpoints yet */
|
890 |
break;
|
891 |
case 3: |
892 |
type = BP_CPU | BP_MEM_ACCESS; |
893 |
insert_wp:
|
894 |
err = cpu_watchpoint_insert(env, env->dr[index], |
895 |
hw_breakpoint_len(env->dr[7], index),
|
896 |
type, &env->cpu_watchpoint[index]); |
897 |
break;
|
898 |
} |
899 |
if (err)
|
900 |
env->cpu_breakpoint[index] = NULL;
|
901 |
} |
902 |
|
903 |
void hw_breakpoint_remove(CPUX86State *env, int index) |
904 |
{ |
905 |
if (!env->cpu_breakpoint[index])
|
906 |
return;
|
907 |
switch (hw_breakpoint_type(env->dr[7], index)) { |
908 |
case 0: |
909 |
if (hw_breakpoint_enabled(env->dr[7], index)) |
910 |
cpu_breakpoint_remove_by_ref(env, env->cpu_breakpoint[index]); |
911 |
break;
|
912 |
case 1: |
913 |
case 3: |
914 |
cpu_watchpoint_remove_by_ref(env, env->cpu_watchpoint[index]); |
915 |
break;
|
916 |
case 2: |
917 |
/* No support for I/O watchpoints yet */
|
918 |
break;
|
919 |
} |
920 |
} |
921 |
|
922 |
int check_hw_breakpoints(CPUX86State *env, int force_dr6_update) |
923 |
{ |
924 |
target_ulong dr6; |
925 |
int reg, type;
|
926 |
int hit_enabled = 0; |
927 |
|
928 |
dr6 = env->dr[6] & ~0xf; |
929 |
for (reg = 0; reg < 4; reg++) { |
930 |
type = hw_breakpoint_type(env->dr[7], reg);
|
931 |
if ((type == 0 && env->dr[reg] == env->eip) || |
932 |
((type & 1) && env->cpu_watchpoint[reg] &&
|
933 |
(env->cpu_watchpoint[reg]->flags & BP_WATCHPOINT_HIT))) { |
934 |
dr6 |= 1 << reg;
|
935 |
if (hw_breakpoint_enabled(env->dr[7], reg)) |
936 |
hit_enabled = 1;
|
937 |
} |
938 |
} |
939 |
if (hit_enabled || force_dr6_update)
|
940 |
env->dr[6] = dr6;
|
941 |
return hit_enabled;
|
942 |
} |
943 |
|
944 |
static CPUDebugExcpHandler *prev_debug_excp_handler;
|
945 |
|
946 |
static void breakpoint_handler(CPUX86State *env) |
947 |
{ |
948 |
CPUBreakpoint *bp; |
949 |
|
950 |
if (env->watchpoint_hit) {
|
951 |
if (env->watchpoint_hit->flags & BP_CPU) {
|
952 |
env->watchpoint_hit = NULL;
|
953 |
if (check_hw_breakpoints(env, 0)) |
954 |
raise_exception(env, EXCP01_DB); |
955 |
else
|
956 |
cpu_resume_from_signal(env, NULL);
|
957 |
} |
958 |
} else {
|
959 |
QTAILQ_FOREACH(bp, &env->breakpoints, entry) |
960 |
if (bp->pc == env->eip) {
|
961 |
if (bp->flags & BP_CPU) {
|
962 |
check_hw_breakpoints(env, 1);
|
963 |
raise_exception(env, EXCP01_DB); |
964 |
} |
965 |
break;
|
966 |
} |
967 |
} |
968 |
if (prev_debug_excp_handler)
|
969 |
prev_debug_excp_handler(env); |
970 |
} |
971 |
|
972 |
typedef struct MCEInjectionParams { |
973 |
Monitor *mon; |
974 |
CPUX86State *env; |
975 |
int bank;
|
976 |
uint64_t status; |
977 |
uint64_t mcg_status; |
978 |
uint64_t addr; |
979 |
uint64_t misc; |
980 |
int flags;
|
981 |
} MCEInjectionParams; |
982 |
|
983 |
static void do_inject_x86_mce(void *data) |
984 |
{ |
985 |
MCEInjectionParams *params = data; |
986 |
CPUX86State *cenv = params->env; |
987 |
uint64_t *banks = cenv->mce_banks + 4 * params->bank;
|
988 |
|
989 |
cpu_synchronize_state(cenv); |
990 |
|
991 |
/*
|
992 |
* If there is an MCE exception being processed, ignore this SRAO MCE
|
993 |
* unless unconditional injection was requested.
|
994 |
*/
|
995 |
if (!(params->flags & MCE_INJECT_UNCOND_AO)
|
996 |
&& !(params->status & MCI_STATUS_AR) |
997 |
&& (cenv->mcg_status & MCG_STATUS_MCIP)) { |
998 |
return;
|
999 |
} |
1000 |
|
1001 |
if (params->status & MCI_STATUS_UC) {
|
1002 |
/*
|
1003 |
* if MSR_MCG_CTL is not all 1s, the uncorrected error
|
1004 |
* reporting is disabled
|
1005 |
*/
|
1006 |
if ((cenv->mcg_cap & MCG_CTL_P) && cenv->mcg_ctl != ~(uint64_t)0) { |
1007 |
monitor_printf(params->mon, |
1008 |
"CPU %d: Uncorrected error reporting disabled\n",
|
1009 |
cenv->cpu_index); |
1010 |
return;
|
1011 |
} |
1012 |
|
1013 |
/*
|
1014 |
* if MSR_MCi_CTL is not all 1s, the uncorrected error
|
1015 |
* reporting is disabled for the bank
|
1016 |
*/
|
1017 |
if (banks[0] != ~(uint64_t)0) { |
1018 |
monitor_printf(params->mon, |
1019 |
"CPU %d: Uncorrected error reporting disabled for"
|
1020 |
" bank %d\n",
|
1021 |
cenv->cpu_index, params->bank); |
1022 |
return;
|
1023 |
} |
1024 |
|
1025 |
if ((cenv->mcg_status & MCG_STATUS_MCIP) ||
|
1026 |
!(cenv->cr[4] & CR4_MCE_MASK)) {
|
1027 |
monitor_printf(params->mon, |
1028 |
"CPU %d: Previous MCE still in progress, raising"
|
1029 |
" triple fault\n",
|
1030 |
cenv->cpu_index); |
1031 |
qemu_log_mask(CPU_LOG_RESET, "Triple fault\n");
|
1032 |
qemu_system_reset_request(); |
1033 |
return;
|
1034 |
} |
1035 |
if (banks[1] & MCI_STATUS_VAL) { |
1036 |
params->status |= MCI_STATUS_OVER; |
1037 |
} |
1038 |
banks[2] = params->addr;
|
1039 |
banks[3] = params->misc;
|
1040 |
cenv->mcg_status = params->mcg_status; |
1041 |
banks[1] = params->status;
|
1042 |
cpu_interrupt(cenv, CPU_INTERRUPT_MCE); |
1043 |
} else if (!(banks[1] & MCI_STATUS_VAL) |
1044 |
|| !(banks[1] & MCI_STATUS_UC)) {
|
1045 |
if (banks[1] & MCI_STATUS_VAL) { |
1046 |
params->status |= MCI_STATUS_OVER; |
1047 |
} |
1048 |
banks[2] = params->addr;
|
1049 |
banks[3] = params->misc;
|
1050 |
banks[1] = params->status;
|
1051 |
} else {
|
1052 |
banks[1] |= MCI_STATUS_OVER;
|
1053 |
} |
1054 |
} |
1055 |
|
1056 |
void cpu_x86_inject_mce(Monitor *mon, CPUX86State *cenv, int bank, |
1057 |
uint64_t status, uint64_t mcg_status, uint64_t addr, |
1058 |
uint64_t misc, int flags)
|
1059 |
{ |
1060 |
MCEInjectionParams params = { |
1061 |
.mon = mon, |
1062 |
.env = cenv, |
1063 |
.bank = bank, |
1064 |
.status = status, |
1065 |
.mcg_status = mcg_status, |
1066 |
.addr = addr, |
1067 |
.misc = misc, |
1068 |
.flags = flags, |
1069 |
}; |
1070 |
unsigned bank_num = cenv->mcg_cap & 0xff; |
1071 |
CPUX86State *env; |
1072 |
|
1073 |
if (!cenv->mcg_cap) {
|
1074 |
monitor_printf(mon, "MCE injection not supported\n");
|
1075 |
return;
|
1076 |
} |
1077 |
if (bank >= bank_num) {
|
1078 |
monitor_printf(mon, "Invalid MCE bank number\n");
|
1079 |
return;
|
1080 |
} |
1081 |
if (!(status & MCI_STATUS_VAL)) {
|
1082 |
monitor_printf(mon, "Invalid MCE status code\n");
|
1083 |
return;
|
1084 |
} |
1085 |
if ((flags & MCE_INJECT_BROADCAST)
|
1086 |
&& !cpu_x86_support_mca_broadcast(cenv)) { |
1087 |
monitor_printf(mon, "Guest CPU does not support MCA broadcast\n");
|
1088 |
return;
|
1089 |
} |
1090 |
|
1091 |
run_on_cpu(cenv, do_inject_x86_mce, ¶ms); |
1092 |
if (flags & MCE_INJECT_BROADCAST) {
|
1093 |
params.bank = 1;
|
1094 |
params.status = MCI_STATUS_VAL | MCI_STATUS_UC; |
1095 |
params.mcg_status = MCG_STATUS_MCIP | MCG_STATUS_RIPV; |
1096 |
params.addr = 0;
|
1097 |
params.misc = 0;
|
1098 |
for (env = first_cpu; env != NULL; env = env->next_cpu) { |
1099 |
if (cenv == env) {
|
1100 |
continue;
|
1101 |
} |
1102 |
params.env = env; |
1103 |
run_on_cpu(cenv, do_inject_x86_mce, ¶ms); |
1104 |
} |
1105 |
} |
1106 |
} |
1107 |
|
1108 |
void cpu_report_tpr_access(CPUX86State *env, TPRAccess access)
|
1109 |
{ |
1110 |
TranslationBlock *tb; |
1111 |
|
1112 |
if (kvm_enabled()) {
|
1113 |
env->tpr_access_type = access; |
1114 |
|
1115 |
cpu_interrupt(env, CPU_INTERRUPT_TPR); |
1116 |
} else {
|
1117 |
tb = tb_find_pc(env->mem_io_pc); |
1118 |
cpu_restore_state(tb, env, env->mem_io_pc); |
1119 |
|
1120 |
apic_handle_tpr_access_report(env->apic_state, env->eip, access); |
1121 |
} |
1122 |
} |
1123 |
#endif /* !CONFIG_USER_ONLY */ |
1124 |
|
1125 |
int cpu_x86_get_descr_debug(CPUX86State *env, unsigned int selector, |
1126 |
target_ulong *base, unsigned int *limit, |
1127 |
unsigned int *flags) |
1128 |
{ |
1129 |
SegmentCache *dt; |
1130 |
target_ulong ptr; |
1131 |
uint32_t e1, e2; |
1132 |
int index;
|
1133 |
|
1134 |
if (selector & 0x4) |
1135 |
dt = &env->ldt; |
1136 |
else
|
1137 |
dt = &env->gdt; |
1138 |
index = selector & ~7;
|
1139 |
ptr = dt->base + index; |
1140 |
if ((index + 7) > dt->limit |
1141 |
|| cpu_memory_rw_debug(env, ptr, (uint8_t *)&e1, sizeof(e1), 0) != 0 |
1142 |
|| cpu_memory_rw_debug(env, ptr+4, (uint8_t *)&e2, sizeof(e2), 0) != 0) |
1143 |
return 0; |
1144 |
|
1145 |
*base = ((e1 >> 16) | ((e2 & 0xff) << 16) | (e2 & 0xff000000)); |
1146 |
*limit = (e1 & 0xffff) | (e2 & 0x000f0000); |
1147 |
if (e2 & DESC_G_MASK)
|
1148 |
*limit = (*limit << 12) | 0xfff; |
1149 |
*flags = e2; |
1150 |
|
1151 |
return 1; |
1152 |
} |
1153 |
|
1154 |
X86CPU *cpu_x86_init(const char *cpu_model) |
1155 |
{ |
1156 |
X86CPU *cpu; |
1157 |
CPUX86State *env; |
1158 |
static int inited; |
1159 |
|
1160 |
cpu = X86_CPU(object_new(TYPE_X86_CPU)); |
1161 |
env = &cpu->env; |
1162 |
env->cpu_model_str = cpu_model; |
1163 |
|
1164 |
/* init various static tables used in TCG mode */
|
1165 |
if (tcg_enabled() && !inited) {
|
1166 |
inited = 1;
|
1167 |
optimize_flags_init(); |
1168 |
#ifndef CONFIG_USER_ONLY
|
1169 |
prev_debug_excp_handler = |
1170 |
cpu_set_debug_excp_handler(breakpoint_handler); |
1171 |
#endif
|
1172 |
} |
1173 |
if (cpu_x86_register(cpu, cpu_model) < 0) { |
1174 |
object_delete(OBJECT(cpu)); |
1175 |
return NULL; |
1176 |
} |
1177 |
|
1178 |
x86_cpu_realize(OBJECT(cpu), NULL);
|
1179 |
|
1180 |
return cpu;
|
1181 |
} |
1182 |
|
1183 |
#if !defined(CONFIG_USER_ONLY)
|
1184 |
void do_cpu_init(X86CPU *cpu)
|
1185 |
{ |
1186 |
CPUX86State *env = &cpu->env; |
1187 |
int sipi = env->interrupt_request & CPU_INTERRUPT_SIPI;
|
1188 |
uint64_t pat = env->pat; |
1189 |
|
1190 |
cpu_reset(CPU(cpu)); |
1191 |
env->interrupt_request = sipi; |
1192 |
env->pat = pat; |
1193 |
apic_init_reset(env->apic_state); |
1194 |
env->halted = !cpu_is_bsp(env); |
1195 |
} |
1196 |
|
1197 |
void do_cpu_sipi(X86CPU *cpu)
|
1198 |
{ |
1199 |
CPUX86State *env = &cpu->env; |
1200 |
|
1201 |
apic_sipi(env->apic_state); |
1202 |
} |
1203 |
#else
|
1204 |
void do_cpu_init(X86CPU *cpu)
|
1205 |
{ |
1206 |
} |
1207 |
void do_cpu_sipi(X86CPU *cpu)
|
1208 |
{ |
1209 |
} |
1210 |
#endif
|