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Subject[PATCH 06/35] KVM: Implement dummy values for MSR_PERF_STATUS
Date
From: Alexander Graf <alex@csgraf.de>

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>
---
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 cf6261e..0dd038e 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;
--
1.5.4.5


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