On 1/21/22 14:28, Vitaly Kuznetsov wrote:
To support comparing CPUID data update with what's already set for a vCPU all mangling needs to happen in __kvm_update_cpuid_runtime(), before 'vcpu->arch.cpuid_entries' is updated. CPUID.(EAX=0x12,ECX=1) is currently being mangled in kvm_vcpu_after_set_cpuid(), move it to __kvm_update_cpuid_runtime(). Split off cpuid_get_supported_xcr0() helper as 'vcpu->arch.guest_supported_xcr0' update needs (logically) to stay in kvm_vcpu_after_set_cpuid(). No functional change intended.
Since v3 is already on its way to Linus, I'll merge this patch next week. Paolo
