When I do a test that try to enable hint-dedicated for one VM, but qemu says "warning: host doesn't support requested feature: CPUID.40000001H:EDX.kvm-hint-dedicated [bit 0]". It seems the kernel hasn't expose this ability even when supporting it; So expose it. Signed-off-by: Aili Yao <yaoaili@xxxxxxxxxxxx> --- arch/x86/kvm/cpuid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index 739be5da3bca..2153014742d7 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -917,7 +917,7 @@ static inline int __do_cpuid_func(struct kvm_cpuid_array *array, u32 function) entry->ebx = 0; entry->ecx = 0; - entry->edx = 0; + entry->edx = (1 << KVM_HINTS_REALTIME); break; case 0x80000000: entry->eax = min(entry->eax, 0x8000001f); -- 2.25.1
