| From | Jim Mattson <> | Date | Tue, 26 Feb 2019 11:48:59 -0800 | Subject | Re: [PATCH v3 2/8] KVM:CPUID: Define CET CPUID bits and CR4.CET master enable bit. |
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On Mon, Feb 25, 2019 at 10:32 PM Yang Weijiang <weijiang.yang@intel.com> wrote: > > Guest queries CET SHSTK and IBT support by CPUID.(EAX=0x7,ECX=0), > in return, ECX[bit 7] corresponds to SHSTK feature, and EDX[bit 20] > corresponds to IBT feature. > CR4.CET[bit 23] is CET master enable bit, it controls CET feature > availability in guest OS. > > Note: Although SHSTK or IBT can be enabled independently, > either of the features is controlled by CR4.CET. > > Signed-off-by: Zhang Yi Z <yi.z.zhang@linux.intel.com> > Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
Am I missing something? X86_CR4_CET and X86_FEATURE_SHSTK and X86_FEATURE_IBT don't appear to be defined in Linus' tree.
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