diff options
Diffstat (limited to 'sys/amd64/vmm/vmm_msr.c')
| -rw-r--r-- | sys/amd64/vmm/vmm_msr.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/sys/amd64/vmm/vmm_msr.c b/sys/amd64/vmm/vmm_msr.c index d97c819..0ccd7af 100644 --- a/sys/amd64/vmm/vmm_msr.c +++ b/sys/amd64/vmm/vmm_msr.c @@ -57,6 +57,7 @@ static struct vmm_msr vmm_msr[] = { { MSR_PAT, VMM_MSR_F_EMULATE | VMM_MSR_F_INVALID }, { MSR_BIOS_SIGN,VMM_MSR_F_EMULATE }, { MSR_MCG_CAP, VMM_MSR_F_EMULATE | VMM_MSR_F_READONLY }, + { MSR_IA32_MISC_ENABLE, VMM_MSR_F_EMULATE | VMM_MSR_F_READONLY }, }; #define vmm_msr_num (sizeof(vmm_msr) / sizeof(vmm_msr[0])) @@ -91,7 +92,7 @@ void guest_msrs_init(struct vm *vm, int cpu) { int i; - uint64_t *guest_msrs; + uint64_t *guest_msrs, misc; guest_msrs = vm_guest_msrs(vm, cpu); @@ -115,6 +116,20 @@ guest_msrs_init(struct vm *vm, int cpu) PAT_VALUE(6, PAT_UNCACHED) | PAT_VALUE(7, PAT_UNCACHEABLE); break; + case MSR_IA32_MISC_ENABLE: + misc = rdmsr(MSR_IA32_MISC_ENABLE); + /* + * Set mandatory bits + * 11: branch trace disabled + * 12: PEBS unavailable + * Clear unsupported features + * 16: SpeedStep enable + * 18: enable MONITOR FSM + */ + misc |= (1 << 12) | (1 << 11); + misc &= ~((1 << 18) | (1 << 16)); + guest_msrs[i] = misc; + break; default: panic("guest_msrs_init: missing initialization for msr " "0x%0x", vmm_msr[i].num); |
