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target-i386: Enable CPUID[0x8000000A] if SVM is enabled

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SVM needs CPUID[0x8000000A] to be available. So if SVM is enabled
in a CPU model or explicitly in the command-line, adjust CPUID
xlevel to expose the CPUID[0x8000000A] leaf.

Backports commit 0c3d7c0051576d220e6da0a8ac08f2d8482e2f0b from qemu
This commit is contained in:
Eduardo Habkost 2018-02-26 04:05:44 -05:00 committed by Lioncash
parent 37406874ea
commit 74ae087743
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 4 additions and 0 deletions
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qemu/target-i386/cpu.c
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@ -3071,6 +3071,10 @@ static int x86_cpu_realizefn(struct uc_struct *uc, DeviceState *dev, Error **err
x86_cpu_adjust_feat_level(cpu, FEAT_C000_0001_EDX);
x86_cpu_adjust_feat_level(cpu, FEAT_SVM);
x86_cpu_adjust_feat_level(cpu, FEAT_XSAVE);
/* SVM requires CPUID[0x8000000A] */
if (env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_SVM) {
x86_cpu_adjust_level(cpu, &env->cpuid_min_xlevel, 0x8000000A);
}
}
/* Set cpuid_*level* based on cpuid_min_*level, if not explicitly set */