kvm: x86: Add "significant index" flag to a few CPUID leaves

According to the Intel SDM, volume 2, "CPUID," the index is
significant (or partially significant) for CPUID leaves 0FH, 10H, 12H,
17H, 18H, and 1FH.

Add the corresponding flag to these CPUID leaves in do_host_cpuid().

Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Reviewed-by: Steve Rutherford <srutherford@google.com>
Fixes: a87f2d3a6eadab ("KVM: x86: Add Intel CPUID.1F cpuid emulation support")
Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 4e5a835989d17c19f601df7e59ae548af614e255..63316036f85a01cc22bcadca11fe9301d35f7a65 100644 (file)
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -304,7 +304,13 @@ static void do_host_cpuid(struct kvm_cpuid_entry2 *entry, u32 function,
        case 7:
        case 0xb:
        case 0xd:
+       case 0xf:
+       case 0x10:
+       case 0x12:
        case 0x14:
+       case 0x17:
+       case 0x18:
+       case 0x1f:
        case 0x8000001d:
                entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
                break;