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| author | Alexander Graf <alex@csgraf.de> | 2008-02-21 12:11:01 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-04-27 11:53:25 +0300 |
| commit | 847f0ad8cbfa70c1af6948025836dfbd9ed6da1e (patch) | |
| tree | d3e1f91b460648189922cbb27b6a9571beb312cf /arch/x86/kvm/x86.c | |
| parent | 14af3f3c56103d8c3bb173c255ef5d89fb0c9350 (diff) | |
| download | lwn-847f0ad8cbfa70c1af6948025836dfbd9ed6da1e.tar.gz lwn-847f0ad8cbfa70c1af6948025836dfbd9ed6da1e.zip | |
KVM: Implement dummy values for MSR_PERF_STATUS
Darwin relies on this and ceases to work without.
Signed-off-by: Alexander Graf <alex@csgraf.de>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index cf6261e3d928..0dd038e7392b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -426,6 +426,7 @@ static u32 msrs_to_save[] = { MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR, #endif MSR_IA32_TIME_STAMP_COUNTER, MSR_KVM_SYSTEM_TIME, MSR_KVM_WALL_CLOCK, + MSR_IA32_PERF_STATUS, }; static unsigned num_msrs_to_save; @@ -653,7 +654,6 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_IA32_MC0_MISC+12: case MSR_IA32_MC0_MISC+16: case MSR_IA32_UCODE_REV: - case MSR_IA32_PERF_STATUS: case MSR_IA32_EBL_CR_POWERON: /* MTRR registers */ case 0xfe: @@ -669,6 +669,12 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_IA32_MISC_ENABLE: data = vcpu->arch.ia32_misc_enable_msr; break; + case MSR_IA32_PERF_STATUS: + /* TSC increment by tick */ + data = 1000ULL; + /* CPU multiplier */ + data |= (((uint64_t)4ULL) << 40); + break; case MSR_EFER: data = vcpu->arch.shadow_efer; break; |