On Thu, 2023-03-02 at 15:17 +0800, Chao Gao wrote: > > diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h > > index 9de72586f406..8ec5cc983062 100644 > > --- a/arch/x86/kvm/x86.h > > +++ b/arch/x86/kvm/x86.h > > @@ -475,6 +475,8 @@ bool kvm_msr_allowed(struct kvm_vcpu *vcpu, u32 > > index, u32 type); > > __reserved_bits |= X86_CR4_VMXE; \ > > if (!__cpu_has(__c, X86_FEATURE_PCID)) \ > > __reserved_bits |= X86_CR4_PCIDE; \ > > + if (!__cpu_has(__c, X86_FEATURE_LAM)) \ > > + __reserved_bits |= X86_CR4_LAM_SUP; \ > > __reserved_bits; \ > > }) > > Add X86_CR4_LAM_SUP to cr4_fixed1 in > nested_vmx_cr_fixed1_bits_update() > to indicate CR4.LAM_SUP is allowed to be 0 or 1 in VMX operation. > Is this going to support nested LAM? > With this fixed, > > Reviewed-by: Chao Gao <chao.gao@xxxxxxxxx>
