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>

diff --git a/target/i386/hvf/x86_cpuid.c b/target/i386/hvf/x86_cpuid.c
index ac731c2..a684291 100644 (file)
--- a/target/i386/hvf/x86_cpuid.c
+++ b/target/i386/hvf/x86_cpuid.c
@@ -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;