Let the guest read the IA32_TSC MSR with the generic RDMSR instruction as well as the specific RDTSC(P) instructions. Note that the hardware applies the TSC multiplier and offset (when applicable) to the result of RDMSR(IA32_TSC), just as it does to the result of RDTSC(P). Signed-off-by: Jim Mattson <jmattson@xxxxxxxxxx> Reviewed-by: Peter Shier <pshier@xxxxxxxxxx> Reviewed-by: Marc Orr <marcorr@xxxxxxxxxx> --- arch/x86/kvm/vmx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index ccc6a01eb4f4..b9602d000fbf 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -11521,6 +11521,7 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id) goto free_msrs; msr_bitmap = vmx->vmcs01.msr_bitmap; + vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_TSC, MSR_TYPE_R); vmx_disable_intercept_for_msr(msr_bitmap, MSR_FS_BASE, MSR_TYPE_RW); vmx_disable_intercept_for_msr(msr_bitmap, MSR_GS_BASE, MSR_TYPE_RW); vmx_disable_intercept_for_msr(msr_bitmap, MSR_KERNEL_GS_BASE, MSR_TYPE_RW); -- 2.19.1.930.g4563a0d9d0-goog
