On Wed, Dec 26, 2018 at 12:13 AM Yang Weijiang <weijiang.y...@intel.com> wrote: > > During Guest OS execution, it accesses these MSRs to > configure CET runtime settings. > > Signed-off-by: Zhang Yi Z <yi.z.zh...@linux.intel.com> > Signed-off-by: Yang Weijiang <weijiang.y...@intel.com> > --- > arch/x86/kvm/vmx.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c > index 25fa6bd2fb95..fa2db6248404 100644 > --- a/arch/x86/kvm/vmx.c > +++ b/arch/x86/kvm/vmx.c > @@ -11550,6 +11550,13 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm > *kvm, unsigned int id) > vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_SYSENTER_CS, > MSR_TYPE_RW); > vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_SYSENTER_ESP, > MSR_TYPE_RW); > vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_SYSENTER_EIP, > MSR_TYPE_RW); > + > + vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_U_CET, > MSR_TYPE_RW); > + vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_S_CET, > MSR_TYPE_RW); > + vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_INT_SSP_TAB, > MSR_TYPE_RW); > + vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_PL0_SSP, > MSR_TYPE_RW); > + vmx_disable_intercept_for_msr(msr_bitmap, MSR_IA32_PL3_SSP, > MSR_TYPE_RW); > +
Shouldn't this be conditional on the guest having CET support enumerated in CPUID? > vmx->msr_bitmap_mode = 0; > > vmx->loaded_vmcs = &vmx->vmcs01; > -- > 2.17.1 >
