Messages in this thread | | | Subject | Re: [PATCH v2 3/7] KVM:CPUID: Add CPUID support for CET xsaves component query. | From | Paolo Bonzini <> | Date | Fri, 25 Jan 2019 18:57:10 +0100 |
| |
On 22/01/19 21:59, Yang Weijiang wrote: > */ > entry->edx |= F(ARCH_CAPABILITIES); > + /* > + * If host doesn't have CET capability, > + * do not report CET related info. > + */ > + if (!boot_cpu_has(X86_FEATURE_SHSTK)) > + entry->ecx &= ~F(SHSTK); > + > + if (!boot_cpu_has(X86_FEATURE_IBT)) > + entry->edx &= ~F(IBT); > +
This is not needed, it is implied by
cpuid_mask(&entry->ecx, CPUID_7_ECX); cpuid_mask(&entry->edx, CPUID_7_EDX);
earlier in the function.
Paolo
| |