When passthrough the Intel GPU Device (igd) to windows guest, the idg driver of the guest will read three MSRs: MSR_NHM_TURBO_RATIO_LIMIT MSR_PLATFORM_INFO MSR_PKG_POWER_LIMIT Windows guest os will crash as kvm will inject a #GP into the guest if that tries to access unhandled MSRs, so add this three MSRS to the list of ignored MSRs. Signed-off-by: Shuai Ruan <shuai.ruan@xxxxxxxxxxxxxxx> --- arch/x86/kvm/x86.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 9b7798c..f00a58e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2301,6 +2301,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) case MSR_IA32_LASTBRANCHTOIP: case MSR_IA32_LASTINTFROMIP: case MSR_IA32_LASTINTTOIP: + case MSR_NHM_TURBO_RATIO_LIMIT: + case MSR_PLATFORM_INFO: + case MSR_PKG_POWER_LIMIT: case MSR_K8_SYSCFG: case MSR_K8_TSEG_ADDR: case MSR_K8_TSEG_MASK: -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
