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File _service:tar_scm:i386-cpuid-Move-leaf-7-to-correct-group.patch of Package qemu
From bf3d3ecf9ff5808d1f03e83a363c8295f7abad76 Mon Sep 17 00:00:00 2001 From: Xiaoyao Li <xiaoyao.li@intel.com> Date: Wed, 24 Jan 2024 21:40:16 -0500 Subject: [PATCH] i386/cpuid: Move leaf 7 to correct group commit 0729857c707535847d7fe31d3d91eb8b2a118e3c upstream. 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> Message-ID: <20240125024016.2521244-4-xiaoyao.li@intel.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Jason Zeng <jason.zeng@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 e68eb8f5e6..a0bc9ea7b1 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -1955,7 +1955,6 @@ 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; @@ -1975,6 +1974,7 @@ int kvm_arch_init_vcpu(CPUState *cs) c = &cpuid_data.entries[cpuid_i++]; } break; + case 0x7: case 0x14: case 0x1d: case 0x1e: { -- 2.27.0
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