From: Jim Mattson <jmattson@google.com>
Date: Tue, 24 Sep 2019 13:51:08 -0700
Subject: kvm: x86: Enumerate support for CLZERO instruction
Git-commit: 40bc47b08b6efc8b64fef77cb46974f634215425
Patch-mainline: v5.4-rc2
References: jsc#SLE-13573
CLZERO is available to the guest if it is supported on the
host. Therefore, enumerate support for the instruction in
KVM_GET_SUPPORTED_CPUID whenever it is supported on the host.
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Dario Faggioli <dfaggioli@suse.com>
---
arch/x86/kvm/cpuid.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index ce4a1b3cc3e8..34d9f9f481a3 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -485,8 +485,9 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function,
/* cpuid 0x80000008.ebx */
const u32 kvm_cpuid_8000_0008_ebx_x86_features =
- F(WBNOINVD) | F(AMD_IBPB) | F(AMD_IBRS) | F(AMD_SSBD) | F(VIRT_SSBD) |
- F(AMD_SSB_NO) | F(AMD_STIBP) | F(AMD_STIBP_ALWAYS_ON);
+ F(CLZERO) | F(WBNOINVD) | F(AMD_IBPB) | F(AMD_IBRS) |
+ F(AMD_STIBP) | F(AMD_STIBP_ALWAYS_ON) | F(AMD_SSBD) |
+ F(VIRT_SSBD) | F(AMD_SSB_NO);
/* cpuid 0xC0000001.edx */
const u32 kvm_cpuid_C000_0001_edx_x86_features =