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Commit 847f0ad8 authored by Alexander Graf's avatar Alexander Graf Committed by Avi Kivity
Browse files

KVM: Implement dummy values for MSR_PERF_STATUS 



Darwin relies on this and ceases to work without.

Signed-off-by: default avatarAlexander Graf <alex@csgraf.de>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 14af3f3c

arch/x86/kvm/x86.c

+7 −1
Original line number Diff line number Diff line
@@ -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;