Alexander Graf wrote:
Hyper-V uses some MSRs, some of which are actually reserved for BIOS usage.But let's be nice today and have it its way, because otherwise it fails terribly. v2 changes: - remove the 0x40000081 MSR definition - add pr_unimpl() on unimplemented writes Signed-off-by: Alexander Graf <ag...@suse.de> --- arch/x86/kvm/svm.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index ef43a18..4b4eadd 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2034,6 +2034,11 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data) case MSR_VM_HSAVE_PA: svm->hsave_msr = data; break; + case MSR_VM_CR: + case MSR_VM_IGNNE: + case MSR_K8_HWCR: + pr_unimpl(vcpu, "unimplemented wrmsr: 0x%x data 0x%llx\n", ecx, data); + break;
We can be nicer, if the write doesn't set bits which we don't implement, we can let it proceed silently. See for example MSR_IA32_DEBUGCTLMSR. Most likely the values written are already correctly implemented (by doing nothing).
-- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
