1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 644bfe828ce1..8a80737ee6e6 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -464,6 +464,8 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
                 u64 supported = kvm_supported_xcr0();
 
                 entry->eax &= supported;
+                entry->ebx = xstate_required_size(supported, false);
+                entry->ecx = entry->ebx;
                 entry->edx &= supported >> 32;
                 entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
                 if (!supported)