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i386: remove the new CPUID 'PCONFIG' from Icelake-Server CPU model

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PCONFIG is not available to guests; it must be specifically enabled
using the PCONFIG_ENABLE execution control. Disable it, because
no one can ever use it.

Backports commit 76e5a4d58357b9d077afccf7f7c82e17f733b722 from qemu
This commit is contained in:
Robert Hoo 2019-02-07 08:54:01 -05:00 committed by Lioncash
parent 04676ed074
commit 2c61060ecb
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 1 additions and 2 deletions
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3
qemu/target/i386/cpu.c
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@ -3211,8 +3211,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_7_0_ECX_AVX512VNNI | CPUID_7_0_ECX_AVX512BITALG |
CPUID_7_0_ECX_AVX512_VPOPCNTDQ | CPUID_7_0_ECX_LA57,
.features[FEAT_7_0_EDX] =
CPUID_7_0_EDX_PCONFIG | CPUID_7_0_EDX_SPEC_CTRL |
CPUID_7_0_EDX_SPEC_CTRL_SSBD,
CPUID_7_0_EDX_SPEC_CTRL | CPUID_7_0_EDX_SPEC_CTRL_SSBD,
/* Missing: XSAVES (not supported by some Linux versions,
* including v4.1 to v4.12).
* KVM doesn't yet expose any XSAVES state save component,