diff options
| -rw-r--r-- | monitor.c | 4 | ||||
| -rw-r--r-- | qemu-common.h | 6 | ||||
| -rw-r--r-- | target-i386/cpu.h | 6 | ||||
| -rw-r--r-- | target-i386/helper.c | 79 |
4 files changed, 54 insertions, 41 deletions
@@ -2712,8 +2712,8 @@ static void do_inject_mce(Monitor *mon, const QDict *qdict) int broadcast = qdict_get_try_bool(qdict, "broadcast", 0); for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu) { - if (cenv->cpu_index == cpu_index && cenv->mcg_cap) { - cpu_x86_inject_mce(cenv, bank, status, mcg_status, addr, misc, + if (cenv->cpu_index == cpu_index) { + cpu_x86_inject_mce(mon, cenv, bank, status, mcg_status, addr, misc, broadcast); break; } diff --git a/qemu-common.h b/qemu-common.h index 3fe1719..7a96dd1 100644 --- a/qemu-common.h +++ b/qemu-common.h @@ -18,6 +18,9 @@ typedef struct QEMUFile QEMUFile; typedef struct QEMUBH QEMUBH; typedef struct DeviceState DeviceState; +struct Monitor; +typedef struct Monitor Monitor; + /* we put basic includes here to avoid repeating them in device drivers */ #include <stdlib.h> #include <stdio.h> @@ -327,9 +330,6 @@ void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count); void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count, size_t skip); -struct Monitor; -typedef struct Monitor Monitor; - /* Convert a byte between binary and BCD. */ static inline uint8_t to_bcd(uint8_t val) { diff --git a/target-i386/cpu.h b/target-i386/cpu.h index 52bb48e..486af1d 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -987,8 +987,8 @@ static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc, void do_cpu_init(CPUState *env); void do_cpu_sipi(CPUState *env); -void cpu_x86_inject_mce(CPUState *cenv, int bank, uint64_t status, - uint64_t mcg_status, uint64_t addr, uint64_t misc, - int broadcast); +void cpu_x86_inject_mce(Monitor *mon, CPUState *cenv, int bank, + uint64_t status, uint64_t mcg_status, uint64_t addr, + uint64_t misc, int broadcast); #endif /* CPU_I386_H */ diff --git a/target-i386/helper.c b/target-i386/helper.c index ba3bed9..462d332 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -30,6 +30,7 @@ #include "kvm_x86.h" #ifndef CONFIG_USER_ONLY #include "sysemu.h" +#include "monitor.h" #endif //#define DEBUG_MMU @@ -1067,33 +1068,38 @@ static void breakpoint_handler(CPUState *env) } static void -qemu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status, +qemu_inject_x86_mce(Monitor *mon, CPUState *cenv, int bank, uint64_t status, uint64_t mcg_status, uint64_t addr, uint64_t misc) { uint64_t mcg_cap = cenv->mcg_cap; - uint64_t *banks = cenv->mce_banks; - - /* - * 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; - } + uint64_t *banks = cenv->mce_banks + 4 * bank; + if (status & MCI_STATUS_UC) { + /* + * if MSR_MCG_CTL is not all 1s, the uncorrected error + * reporting is disabled + */ + if ((mcg_cap & MCG_CTL_P) && cenv->mcg_ctl != ~(uint64_t)0) { + monitor_printf(mon, + "CPU %d: Uncorrected error reporting disabled\n", + cenv->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(mon, "CPU %d: Uncorrected error reporting disabled " + "for bank %d\n", cenv->cpu_index, bank); + return; + } + 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"); + monitor_printf(mon, "CPU %d: Previous MCE still in progress, " + "raising triple fault\n", cenv->cpu_index); qemu_log_mask(CPU_LOG_RESET, "Triple fault\n"); qemu_system_reset_request(); return; @@ -1119,23 +1125,29 @@ qemu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status, } } -void cpu_x86_inject_mce(CPUState *cenv, int bank, uint64_t status, - uint64_t mcg_status, uint64_t addr, uint64_t misc, - int broadcast) +void cpu_x86_inject_mce(Monitor *mon, CPUState *cenv, int bank, + uint64_t status, uint64_t mcg_status, uint64_t addr, + uint64_t misc, int broadcast) { unsigned bank_num = cenv->mcg_cap & 0xff; CPUState *env; int flag = 0; - if (bank >= bank_num || !(status & MCI_STATUS_VAL)) { + if (!cenv->mcg_cap) { + monitor_printf(mon, "MCE injection not supported\n"); return; } - - if (broadcast) { - if (!cpu_x86_support_mca_broadcast(cenv)) { - fprintf(stderr, "Current CPU does not support broadcast\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 (broadcast && !cpu_x86_support_mca_broadcast(cenv)) { + monitor_printf(mon, "Guest CPU does not support MCA broadcast\n"); + return; } if (kvm_enabled()) { @@ -1145,13 +1157,14 @@ void cpu_x86_inject_mce(CPUState *cenv, int bank, uint64_t status, kvm_inject_x86_mce(cenv, bank, status, mcg_status, addr, misc, flag); } else { - qemu_inject_x86_mce(cenv, bank, status, mcg_status, addr, misc); + qemu_inject_x86_mce(mon, cenv, bank, status, mcg_status, addr, misc); if (broadcast) { for (env = first_cpu; env != NULL; env = env->next_cpu) { if (cenv == env) { continue; } - qemu_inject_x86_mce(env, 1, MCI_STATUS_VAL | MCI_STATUS_UC, + qemu_inject_x86_mce(mon, env, 1, + MCI_STATUS_VAL | MCI_STATUS_UC, MCG_STATUS_MCIP | MCG_STATUS_RIPV, 0, 0); } } |