CET MSRs pass through Guest directly to enhance performance.
CET runtime control settings are stored in MSR_IA32_{U,S}_CET,
Shadow Stack Pointer(SSP) are stored in MSR_IA32_PL{0,1,2,3}_SSP,
SSP table base address is stored in MSR_IA32_INT_SSP_TAB,
these MSRs are defined in kernel and re-used here.
On Thu, Sep 26, 2019 at 7:17 PM Yang Weijiang wrote:
>
> CET MSRs pass through Guest directly to enhance performance.
> CET runtime control settings are stored in MSR_IA32_{U,S}_CET,
> Shadow Stack Pointer(SSP) are stored in MSR_IA32_PL{0,1,2,3}_SSP,
> SSP table base address is stored in MSR_IA32_
On Wed, Oct 02, 2019 at 11:18:32AM -0700, Jim Mattson wrote:
> On Thu, Sep 26, 2019 at 7:17 PM Yang Weijiang wrote:
> >
> > CET MSRs pass through Guest directly to enhance performance.
> > CET runtime control settings are stored in MSR_IA32_{U,S}_CET,
> > Shadow Stack Pointer(SSP) are stored in MS
On Tue, Oct 8, 2019 at 11:13 PM Yang Weijiang wrote:
>
> On Wed, Oct 02, 2019 at 11:18:32AM -0700, Jim Mattson wrote:
> > On Thu, Sep 26, 2019 at 7:17 PM Yang Weijiang
> > wrote:
> > >
> > > CET MSRs pass through Guest directly to enhance performance.
> > > CET runtime control settings are store
On Thu, Oct 10, 2019 at 12:04:40PM -0700, Jim Mattson wrote:
> On Tue, Oct 8, 2019 at 11:13 PM Yang Weijiang wrote:
> >
> > On Wed, Oct 02, 2019 at 11:18:32AM -0700, Jim Mattson wrote:
> > > On Thu, Sep 26, 2019 at 7:17 PM Yang Weijiang
> > > wrote:
> > > >
> > > > CET MSRs pass through Guest di
On Wed, Oct 09, 2019 at 02:15:09PM +0800, Yang Weijiang wrote:
> On Wed, Oct 02, 2019 at 11:18:32AM -0700, Jim Mattson wrote:
> > > + kvm_xss = kvm_supported_xss();
> > > + cet_en = guest_cpuid_has(vcpu, X86_FEATURE_SHSTK) ||
> > > +guest_cpuid_has(vcpu, X86_FEATURE_IBT)
On Thu, Oct 17, 2019 at 01:04:11PM -0700, Sean Christopherson wrote:
> On Wed, Oct 09, 2019 at 02:15:09PM +0800, Yang Weijiang wrote:
> > On Wed, Oct 02, 2019 at 11:18:32AM -0700, Jim Mattson wrote:
> > > > + kvm_xss = kvm_supported_xss();
> > > > + cet_en = guest_cpuid_has(vcpu, X86_FE
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