On 10/24/2025 2:56 PM, Zhao Liu wrote:
From: Yang Weijiang <[email protected]>
Add CET_U/S bits in xstate area and report support in xstate
feature mask.
MSR_XSS[bit 11] corresponds to CET user mode states.
MSR_XSS[bit 12] corresponds to CET supervisor mode states.
CET Shadow Stack(SHSTK) and Indirect Branch Tracking(IBT) features
are enumerated via CPUID.(EAX=07H,ECX=0H):ECX[7] and EDX[20]
respectively, two features share the same state bits in XSS, so
if either of the features is enabled, set CET_U and CET_S bits
together.
Tested-by: Farrah Chen <[email protected]>
Signed-off-by: Yang Weijiang <[email protected]>
Co-developed-by: Chao Gao <[email protected]>
Signed-off-by: Chao Gao <[email protected]>
Co-developed-by: Zhao Liu <[email protected]>
Signed-off-by: Zhao Liu <[email protected]>
Reviewed-by: Xiaoyao Li <[email protected]>
