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hvf: Gate RDTSCP on CPU_BASED2_RDTSCP, not just CPU_BASED_TSC_OFFSET 

Buglink: https://bugs.launchpad.net/qemu/+bug/1894836
Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com>
Message-Id: <20201116200319.28138-1-jrtc27@jrtc27.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jessica Clarke 2020-11-16 20:03:19 +00:00 committed by Paolo Bonzini
parent ca31e3072f
commit 65baabca22
1 changed files with 4 additions and 0 deletions
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4
target/i386/hvf/x86_cpuid.c
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@ -122,6 +122,10 @@ uint32_t hvf_get_supported_cpuid(uint32_t func, uint32_t idx,
CPUID_PAT | CPUID_PSE36 | CPUID_EXT2_MMXEXT | CPUID_MMX |
CPUID_FXSR | CPUID_EXT2_FXSR | CPUID_EXT2_PDPE1GB | CPUID_EXT2_3DNOWEXT |
CPUID_EXT2_3DNOW | CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_NX;
hv_vmx_read_capability(HV_VMX_CAP_PROCBASED2, &cap);
if (!(cap & CPU_BASED2_RDTSCP)) {
edx &= ~CPUID_EXT2_RDTSCP;
}
hv_vmx_read_capability(HV_VMX_CAP_PROCBASED, &cap);
if (!(cap & CPU_BASED_TSC_OFFSET)) {
edx &= ~CPUID_EXT2_RDTSCP;