diff options
| author | Sean Christopherson <seanjc@google.com> | 2021-05-04 10:17:20 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-05-07 06:06:15 -0400 |
| commit | 8aec21c04caa2000f91cf8822ae0811e4b0c3971 (patch) | |
| tree | 60f93738d8afd8818c2c47ed8646950b370acc69 /arch/x86/kvm/cpuid.c | |
| parent | 809c79137a192d7e881a517f803ebbf96305f066 (diff) | |
KVM: VMX: Do not advertise RDPID if ENABLE_RDTSCP control is unsupported
Clear KVM's RDPID capability if the ENABLE_RDTSCP secondary exec control is
unsupported. Despite being enumerated in a separate CPUID flag, RDPID is
bundled under the same VMCS control as RDTSCP and will #UD in VMX non-root
if ENABLE_RDTSCP is not enabled.
Fixes: 41cd02c6f7f6 ("kvm: x86: Expose RDPID in KVM_GET_SUPPORTED_CPUID")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210504171734.1434054-2-seanjc@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/cpuid.c')
0 files changed, 0 insertions, 0 deletions