diff options
| -rw-r--r-- | cpu-all.h | 4 | ||||
| -rw-r--r-- | cpu-exec.c | 4 | ||||
| -rw-r--r-- | monitor.c | 46 | ||||
| -rw-r--r-- | qemu-monitor.hx | 8 | ||||
| -rw-r--r-- | target-i386/cpu.h | 24 | ||||
| -rw-r--r-- | target-i386/helper.c | 70 | ||||
| -rw-r--r-- | target-i386/machine.c | 29 | ||||
| -rw-r--r-- | target-i386/op_helper.c | 34 |
8 files changed, 217 insertions, 2 deletions
@@ -770,6 +770,7 @@ extern int use_icount; #define CPU_INTERRUPT_NMI 0x200 /* NMI pending. */ #define CPU_INTERRUPT_INIT 0x400 /* INIT pending. */ #define CPU_INTERRUPT_SIPI 0x800 /* SIPI pending. */ +#define CPU_INTERRUPT_MCE 0x1000 /* (x86 only) MCE pending. */ void cpu_interrupt(CPUState *s, int mask); void cpu_reset_interrupt(CPUState *env, int mask); @@ -1071,4 +1072,7 @@ extern int64_t kqemu_ret_excp_count; extern int64_t kqemu_ret_intr_count; #endif +void cpu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status, + uint64_t mcg_status, uint64_t addr, uint64_t misc); + #endif /* CPU_ALL_H */ diff --git a/cpu-exec.c b/cpu-exec.c index db5cb5730e..38335f8b4f 100644 --- a/cpu-exec.c +++ b/cpu-exec.c @@ -400,6 +400,10 @@ int cpu_exec(CPUState *env1) env->hflags2 |= HF2_NMI_MASK; do_interrupt(EXCP02_NMI, 0, 0, 0, 1); next_tb = 0; + } else if (interrupt_request & CPU_INTERRUPT_MCE) { + env->interrupt_request &= ~CPU_INTERRUPT_MCE; + do_interrupt(EXCP12_MCHK, 0, 0, 0, 0); + next_tb = 0; } else if ((interrupt_request & CPU_INTERRUPT_HARD) && (((env->hflags2 & HF2_VINTR_MASK) && (env->hflags2 & HF2_HIF_MASK)) || @@ -1677,6 +1677,28 @@ static void do_acl_remove(Monitor *mon, const char *aclname, const char *match) } } +#if defined(TARGET_I386) +static void do_inject_mce(Monitor *mon, + int cpu_index, int bank, + unsigned status_hi, unsigned status_lo, + unsigned mcg_status_hi, unsigned mcg_status_lo, + unsigned addr_hi, unsigned addr_lo, + unsigned misc_hi, unsigned misc_lo) +{ + CPUState *cenv; + uint64_t status = ((uint64_t)status_hi << 32) | status_lo; + uint64_t mcg_status = ((uint64_t)mcg_status_hi << 32) | mcg_status_lo; + uint64_t addr = ((uint64_t)addr_hi << 32) | addr_lo; + uint64_t misc = ((uint64_t)misc_hi << 32) | misc_lo; + + for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu) + if (cenv->cpu_index == cpu_index && cenv->mcg_cap) { + cpu_inject_x86_mce(cenv, bank, status, mcg_status, addr, misc); + break; + } +} +#endif + static const mon_cmd_t mon_cmds[] = { #include "qemu-monitor.h" { NULL, NULL, }, @@ -2451,6 +2473,15 @@ static void monitor_handle_command(Monitor *mon, const char *cmdline) void *arg3, void *arg4, void *arg5); void (*handler_7)(Monitor *mon, void *arg0, void *arg1, void *arg2, void *arg3, void *arg4, void *arg5, void *arg6); + void (*handler_8)(Monitor *mon, void *arg0, void *arg1, void *arg2, + void *arg3, void *arg4, void *arg5, void *arg6, + void *arg7); + void (*handler_9)(Monitor *mon, void *arg0, void *arg1, void *arg2, + void *arg3, void *arg4, void *arg5, void *arg6, + void *arg7, void *arg8); + void (*handler_10)(Monitor *mon, void *arg0, void *arg1, void *arg2, + void *arg3, void *arg4, void *arg5, void *arg6, + void *arg7, void *arg8, void *arg9); #ifdef DEBUG monitor_printf(mon, "command='%s'\n", cmdline); @@ -2739,6 +2770,21 @@ static void monitor_handle_command(Monitor *mon, const char *cmdline) handler_7(mon, args[0], args[1], args[2], args[3], args[4], args[5], args[6]); break; + case 8: + handler_8 = cmd->handler; + handler_8(mon, args[0], args[1], args[2], args[3], args[4], args[5], + args[6], args[7]); + break; + case 9: + handler_9 = cmd->handler; + handler_9(mon, args[0], args[1], args[2], args[3], args[4], args[5], + args[6], args[7], args[8]); + break; + case 10: + handler_10 = cmd->handler; + handler_10(mon, args[0], args[1], args[2], args[3], args[4], args[5], + args[6], args[7], args[8], args[9]); + break; default: monitor_printf(mon, "unsupported number of arguments: %d\n", nb_args); goto fail; diff --git a/qemu-monitor.hx b/qemu-monitor.hx index dc10b7589b..62edbcde75 100644 --- a/qemu-monitor.hx +++ b/qemu-monitor.hx @@ -615,6 +615,14 @@ Remove all matches from the access control list, and set the default policy back to @code{deny}. ETEXI +#if defined(TARGET_I386) + { "mce", "iillll", do_inject_mce, "cpu bank status mcgstatus addr misc", "inject a MCE on the given CPU"}, +#endif +STEXI +@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc} +Inject an MCE on the given CPU (x86 only). +ETEXI + STEXI @end table ETEXI diff --git a/target-i386/cpu.h b/target-i386/cpu.h index 4a8608e0ce..6f7478a711 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -204,6 +204,7 @@ #define CR4_DE_MASK (1 << 3) #define CR4_PSE_MASK (1 << 4) #define CR4_PAE_MASK (1 << 5) +#define CR4_MCE_MASK (1 << 6) #define CR4_PGE_MASK (1 << 7) #define CR4_PCE_MASK (1 << 8) #define CR4_OSFXSR_SHIFT 9 @@ -250,6 +251,17 @@ #define PG_ERROR_RSVD_MASK 0x08 #define PG_ERROR_I_D_MASK 0x10 +#define MCG_CTL_P (1UL<<8) /* MCG_CAP register available */ + +#define MCE_CAP_DEF MCG_CTL_P +#define MCE_BANKS_DEF 10 + +#define MCG_STATUS_MCIP (1UL<<2) /* machine check in progress */ + +#define MCI_STATUS_VAL (1UL<<63) /* valid error */ +#define MCI_STATUS_OVER (1UL<<62) /* previous errors lost */ +#define MCI_STATUS_UC (1UL<<61) /* uncorrected error */ + #define MSR_IA32_TSC 0x10 #define MSR_IA32_APICBASE 0x1b #define MSR_IA32_APICBASE_BSP (1<<8) @@ -290,6 +302,11 @@ #define MSR_MTRRdefType 0x2ff +#define MSR_MC0_CTL 0x400 +#define MSR_MC0_STATUS 0x401 +#define MSR_MC0_ADDR 0x402 +#define MSR_MC0_MISC 0x403 + #define MSR_EFER 0xc0000080 #define MSR_EFER_SCE (1 << 0) @@ -678,6 +695,11 @@ typedef struct CPUX86State { /* in order to simplify APIC support, we leave this pointer to the user */ struct APICState *apic_state; + + uint64 mcg_cap; + uint64 mcg_status; + uint64 mcg_ctl; + uint64 *mce_banks; } CPUX86State; CPUX86State *cpu_x86_init(const char *cpu_model); @@ -842,7 +864,7 @@ static inline int cpu_get_time_fast(void) #define cpu_signal_handler cpu_x86_signal_handler #define cpu_list x86_cpu_list -#define CPU_SAVE_VERSION 9 +#define CPU_SAVE_VERSION 10 /* MMU modes definitions */ #define MMU_MODE0_SUFFIX _kernel diff --git a/target-i386/helper.c b/target-i386/helper.c index 82e1ff114c..ce5346c317 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -1496,8 +1496,77 @@ static void breakpoint_handler(CPUState *env) if (prev_debug_excp_handler) prev_debug_excp_handler(env); } + +/* This should come from sysemu.h - if we could include it here... */ +void qemu_system_reset_request(void); + +void cpu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status, + uint64_t mcg_status, uint64_t addr, uint64_t misc) +{ + uint64_t mcg_cap = cenv->mcg_cap; + unsigned bank_num = mcg_cap & 0xff; + uint64_t *banks = cenv->mce_banks; + + if (bank >= bank_num || !(status & MCI_STATUS_VAL)) + return; + + /* + * if MSR_MCG_CTL is not all 1s, the uncorrected error + * reporting is disabled + */ + if ((status & MCI_STATUS_UC) && (mcg_cap & MCG_CTL_P) && + cenv->mcg_ctl != ~(uint64_t)0) + return; + banks += 4 * bank; + /* + * if MSR_MCi_CTL is not all 1s, the uncorrected error + * reporting is disabled for the bank + */ + if ((status & MCI_STATUS_UC) && banks[0] != ~(uint64_t)0) + return; + if (status & MCI_STATUS_UC) { + if ((cenv->mcg_status & MCG_STATUS_MCIP) || + !(cenv->cr[4] & CR4_MCE_MASK)) { + fprintf(stderr, "injects mce exception while previous " + "one is in progress!\n"); + qemu_log_mask(CPU_LOG_RESET, "Triple fault\n"); + qemu_system_reset_request(); + return; + } + if (banks[1] & MCI_STATUS_VAL) + status |= MCI_STATUS_OVER; + banks[2] = addr; + banks[3] = misc; + cenv->mcg_status = mcg_status; + banks[1] = status; + cpu_interrupt(cenv, CPU_INTERRUPT_MCE); + } else if (!(banks[1] & MCI_STATUS_VAL) + || !(banks[1] & MCI_STATUS_UC)) { + if (banks[1] & MCI_STATUS_VAL) + status |= MCI_STATUS_OVER; + banks[2] = addr; + banks[3] = misc; + banks[1] = status; + } else + banks[1] |= MCI_STATUS_OVER; +} #endif /* !CONFIG_USER_ONLY */ +static void mce_init(CPUX86State *cenv) +{ + unsigned int bank, bank_num; + + if (((cenv->cpuid_version >> 8)&0xf) >= 6 + && (cenv->cpuid_features&(CPUID_MCE|CPUID_MCA)) == (CPUID_MCE|CPUID_MCA)) { + cenv->mcg_cap = MCE_CAP_DEF | MCE_BANKS_DEF; + cenv->mcg_ctl = ~(uint64_t)0; + bank_num = cenv->mcg_cap & 0xff; + cenv->mce_banks = qemu_mallocz(bank_num * sizeof(uint64_t) * 4); + for (bank = 0; bank < bank_num; bank++) + cenv->mce_banks[bank*4] = ~(uint64_t)0; + } +} + static void host_cpuid(uint32_t function, uint32_t count, uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx) @@ -1735,6 +1804,7 @@ CPUX86State *cpu_x86_init(const char *cpu_model) cpu_x86_close(env); return NULL; } + mce_init(env); cpu_reset(env); #ifdef CONFIG_KQEMU kqemu_init(env); diff --git a/target-i386/machine.c b/target-i386/machine.c index 2a72b017f0..8bf13cce83 100644 --- a/target-i386/machine.c +++ b/target-i386/machine.c @@ -158,7 +158,20 @@ void cpu_save(QEMUFile *f, void *opaque) qemu_put_sbe32s(f, &pending_irq); qemu_put_be32s(f, &env->mp_state); qemu_put_be64s(f, &env->tsc); -} + + /* MCE */ + qemu_put_be64s(f, &env->mcg_cap); + if (env->mcg_cap) { + qemu_put_be64s(f, &env->mcg_status); + qemu_put_be64s(f, &env->mcg_ctl); + for (i = 0; i < (env->mcg_cap & 0xff); i++) { + qemu_put_be64s(f, &env->mce_banks[4*i]); + qemu_put_be64s(f, &env->mce_banks[4*i + 1]); + qemu_put_be64s(f, &env->mce_banks[4*i + 2]); + qemu_put_be64s(f, &env->mce_banks[4*i + 3]); + } + } + } #ifdef USE_X86LDOUBLE /* XXX: add that in a FPU generic layer */ @@ -349,6 +362,20 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id) qemu_get_be64s(f, &env->tsc); } + if (version_id >= 10) { + qemu_get_be64s(f, &env->mcg_cap); + if (env->mcg_cap) { + qemu_get_be64s(f, &env->mcg_status); + qemu_get_be64s(f, &env->mcg_ctl); + for (i = 0; i < (env->mcg_cap & 0xff); i++) { + qemu_get_be64s(f, &env->mce_banks[4*i]); + qemu_get_be64s(f, &env->mce_banks[4*i + 1]); + qemu_get_be64s(f, &env->mce_banks[4*i + 2]); + qemu_get_be64s(f, &env->mce_banks[4*i + 3]); + } + } + } + /* XXX: ensure compatiblity for halted bit ? */ /* XXX: compute redundant hflags bits */ env->hflags = hflags; diff --git a/target-i386/op_helper.c b/target-i386/op_helper.c index bd1769c528..ed22c7a650 100644 --- a/target-i386/op_helper.c +++ b/target-i386/op_helper.c @@ -3133,7 +3133,23 @@ void helper_wrmsr(void) case MSR_MTRRdefType: env->mtrr_deftype = val; break; + case MSR_MCG_STATUS: + env->mcg_status = val; + break; + case MSR_MCG_CTL: + if ((env->mcg_cap & MCG_CTL_P) + && (val == 0 || val == ~(uint64_t)0)) + env->mcg_ctl = val; + break; default: + if ((uint32_t)ECX >= MSR_MC0_CTL + && (uint32_t)ECX < MSR_MC0_CTL + (4 * env->mcg_cap & 0xff)) { + uint32_t offset = (uint32_t)ECX - MSR_MC0_CTL; + if ((offset & 0x3) != 0 + || (val == 0 || val == ~(uint64_t)0)) + env->mce_banks[offset] = val; + break; + } /* XXX: exception ? */ break; } @@ -3252,7 +3268,25 @@ void helper_rdmsr(void) /* XXX: exception ? */ val = 0; break; + case MSR_MCG_CAP: + val = env->mcg_cap; + break; + case MSR_MCG_CTL: + if (env->mcg_cap & MCG_CTL_P) + val = env->mcg_ctl; + else + val = 0; + break; + case MSR_MCG_STATUS: + val = env->mcg_status; + break; default: + if ((uint32_t)ECX >= MSR_MC0_CTL + && (uint32_t)ECX < MSR_MC0_CTL + (4 * env->mcg_cap & 0xff)) { + uint32_t offset = (uint32_t)ECX - MSR_MC0_CTL; + val = env->mce_banks[offset]; + break; + } /* XXX: exception ? */ val = 0; break; |