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[PATCH v2 3/3] i386/cpuid: Move leaf 7 to correct group


From: Xiaoyao Li
Subject: [PATCH v2 3/3] i386/cpuid: Move leaf 7 to correct group
Date: Tue, 13 Jun 2023 09:19:29 -0400

CPUID leaf 7 was grouped together with SGX leaf 0x12 by commit
b9edbadefb9e ("i386: Propagate SGX CPUID sub-leafs to KVM") by mistake.

SGX leaf 0x12 has its specific logic to check if subleaf (starting from 2)
is valid or not by checking the bit 0:3 of corresponding EAX is 1 or
not.

Leaf 7 follows the logic that EAX of subleaf 0 enumerates the maximum
valid subleaf.

Fixes: b9edbadefb9e ("i386: Propagate SGX CPUID sub-leafs to KVM")
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
 target/i386/kvm/kvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index d7e235ce35a6..86aab9ca4ba2 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -1993,7 +1993,6 @@ int kvm_arch_init_vcpu(CPUState *cs)
                 c = &cpuid_data.entries[cpuid_i++];
             }
             break;
-        case 0x7:
         case 0x12:
             for (j = 0; ; j++) {
                 c->function = i;
@@ -2013,6 +2012,7 @@ int kvm_arch_init_vcpu(CPUState *cs)
                 c = &cpuid_data.entries[cpuid_i++];
             }
             break;
+        case 0x7:
         case 0x14:
         case 0x1d:
         case 0x1e: {
-- 
2.34.1




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