On Tue, Sep 20, 2022 at 2:17 PM Borislav Petkov <bp@xxxxxxxxx> wrote: > > On Tue, Sep 20, 2022 at 01:59:19PM -0700, Jim Mattson wrote: > > Jim Mattson (3): > > Revert "KVM: SVM: Allow EFER.LMSLE to be set with nested svm" > > x86/cpufeatures: Introduce X86_FEATURE_NO_LMSLE > > KVM: SVM: Unconditionally enumerate EferLmsleUnsupported > > Why do you need those two if you revert the hack? After the revert, > anything that tries to set LMSLE should get a #GP anyway, no? Reporting that CPUID bit gives us the right to raise #GP. AMD CPUs (going way back) that don't report EferLmsleUnsupported do not raise #GP.
