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File _service:tar_scm:i386-cpuid-Decrease-cpuid_i-when-skipping-CPUID-leaf.patch of Package qemu
From 576170252c3cbd79ed918f688d088f1ccd15602a Mon Sep 17 00:00:00 2001 From: Xiaoyao Li <xiaoyao.li@intel.com> Date: Wed, 24 Jan 2024 21:40:14 -0500 Subject: [PATCH] i386/cpuid: Decrease cpuid_i when skipping CPUID leaf 1F commit 10f92799af8ba3c3cef2352adcd4780f13fbab31 upstream. Existing code misses a decrement of cpuid_i when skip leaf 0x1F. There's a blank CPUID entry(with leaf, subleaf as 0, and all fields stuffed 0s) left in the CPUID array. It conflicts with correct CPUID leaf 0. Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com> Reviewed-by:Yang Weijiang <weijiang.yang@intel.com> Message-ID: <20240125024016.2521244-2-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 | 1 + 1 file changed, 1 insertion(+) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 4ce80555b4..e68eb8f5e6 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -1914,6 +1914,7 @@ int kvm_arch_init_vcpu(CPUState *cs) } case 0x1f: if (env->nr_dies < 2) { + cpuid_i--; break; } /* fallthrough */ -- 2.27.0
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