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i386/cpuid: Decrease cpuid_i when skipping CPUID leaf 1F

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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>
(cherry picked from commit 10f92799af)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Xiaoyao Li 2024-01-24 21:40:14 -05:00 • committed by Michael Tokarev
parent 72c4ef9da0
commit e8d27721cb
1 changed files with 1 additions and 0 deletions
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1
target/i386/kvm/kvm.c
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@ -1914,6 +1914,7 @@ int kvm_arch_init_vcpu(CPUState *cs)
}
case 0x1f:
if (env->nr_dies < 2) {
cpuid_i--;
break;
}
/* fallthrough */