int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr) { #if defined(KVM_CAP_MCE) struct kvm_x86_mce mce = { .bank = 9, }; void *vaddr; ram_addr_t ram_addr; target_phys_addr_t paddr; int r; if ((env->mcg_cap & MCG_SER_P) && addr && (code == BUS_MCEERR_AR || code == BUS_MCEERR_AO)) { if (code == BUS_MCEERR_AR) { /* Fake an Intel architectural Data Load SRAR UCR */ mce.status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | MCI_STATUS_MISCV | MCI_STATUS_ADDRV | MCI_STATUS_S | MCI_STATUS_AR | 0x134; mce.misc = (MCM_ADDR_PHYS << 6) | 0xc; mce.mcg_status = MCG_STATUS_MCIP | MCG_STATUS_EIPV; } else { /* * If there is an MCE excpetion being processed, ignore * this SRAO MCE */ if (kvm_mce_in_progress(env)) { return 0; } /* Fake an Intel architectural Memory scrubbing UCR */ mce.status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | MCI_STATUS_MISCV | MCI_STATUS_ADDRV | MCI_STATUS_S | 0xc0; mce.misc = (MCM_ADDR_PHYS << 6) | 0xc; mce.mcg_status = MCG_STATUS_MCIP | MCG_STATUS_RIPV; } vaddr = (void *)addr; if (qemu_ram_addr_from_host(vaddr, &ram_addr) || !kvm_physical_memory_addr_from_ram(env->kvm_state, ram_addr, &paddr)) { fprintf(stderr, "Hardware memory error for memory used by " "QEMU itself instead of guest system!\n"); /* Hope we are lucky for AO MCE */ if (code == BUS_MCEERR_AO) { return 0; } else { hardware_memory_error(); } } mce.addr = paddr; r = kvm_set_mce(env, &mce); if (r < 0) { fprintf(stderr, "kvm_set_mce: %s\n", strerror(errno)); abort(); } kvm_mce_broadcast_rest(env); } else #endif { if (code == BUS_MCEERR_AO) { return 0; } else if (code == BUS_MCEERR_AR) { hardware_memory_error(); } else { return 1; } } return 0; }
int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr) { #if defined(KVM_CAP_MCE) struct kvm_x86_mce mce = { .bank = 9, }; void *vaddr; ram_addr_t ram_addr; target_phys_addr_t paddr; int r; if ((env->mcg_cap & MCG_SER_P) && addr && (code == BUS_MCEERR_AR || code == BUS_MCEERR_AO)) { if (code == BUS_MCEERR_AR) {   mce.status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | MCI_STATUS_MISCV | MCI_STATUS_ADDRV | MCI_STATUS_S | MCI_STATUS_AR | 0x134; mce.misc = (MCM_ADDR_PHYS << 6) | 0xc; mce.mcg_status = MCG_STATUS_MCIP | MCG_STATUS_EIPV; } else {   if (kvm_mce_in_progress(env)) { return 0; }   mce.status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | MCI_STATUS_MISCV | MCI_STATUS_ADDRV | MCI_STATUS_S | 0xc0; mce.misc = (MCM_ADDR_PHYS << 6) | 0xc; mce.mcg_status = MCG_STATUS_MCIP | MCG_STATUS_RIPV; } vaddr = (void *)addr; if (qemu_ram_addr_from_host(vaddr, &ram_addr) || !kvm_physical_memory_addr_from_ram(env->kvm_state, ram_addr, &paddr)) { fprintf(stderr, "Hardware memory error for memory used by " "QEMU itself instead of guest system!\n");   if (code == BUS_MCEERR_AO) { return 0; } else { hardware_memory_error(); } } mce.addr = paddr; r = kvm_set_mce(env, &mce); if (r < 0) { fprintf(stderr, "kvm_set_mce: %s\n", strerror(errno)); abort(); } kvm_mce_broadcast_rest(env); } else #endif { if (code == BUS_MCEERR_AO) { return 0; } else if (code == BUS_MCEERR_AR) { hardware_memory_error(); } else { return 1; } } return 0; }