diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2020-03-09 16:52:14 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 18:19:31 +0100 |
| commit | 7bcf732e74e740fa1a535088e83d4e36f450e4b2 (patch) | |
| tree | a9e1fd144fbdd8372fac06cbba82d7f5e1cb01e1 /tools/testing/selftests | |
| parent | b6a0653ae2cd71a58f479b46ff20307dd3540d63 (diff) | |
| download | linux-7bcf732e74e740fa1a535088e83d4e36f450e4b2.tar.bz2 | |
KVM: selftests: define and use EVMCS_VERSION
KVM allows to use revision_id from MSR_IA32_VMX_BASIC as eVMCS revision_id
to workaround a bug in genuine Hyper-V (see the comment in
nested_vmx_handle_enlightened_vmptrld()), this shouldn't be used by
default. Switch to using KVM_EVMCS_VERSION(1).
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/testing/selftests')
| -rw-r--r-- | tools/testing/selftests/kvm/include/evmcs.h | 2 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/lib/x86_64/vmx.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/tools/testing/selftests/kvm/include/evmcs.h b/tools/testing/selftests/kvm/include/evmcs.h index 4912d23844bc..d8f4d6bfe05d 100644 --- a/tools/testing/selftests/kvm/include/evmcs.h +++ b/tools/testing/selftests/kvm/include/evmcs.h @@ -16,6 +16,8 @@ #define u32 uint32_t #define u64 uint64_t +#define EVMCS_VERSION 1 + extern bool enable_evmcs; struct hv_vp_assist_page { diff --git a/tools/testing/selftests/kvm/lib/x86_64/vmx.c b/tools/testing/selftests/kvm/lib/x86_64/vmx.c index ff0a657a42d3..6f17f69394be 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/vmx.c +++ b/tools/testing/selftests/kvm/lib/x86_64/vmx.c @@ -191,7 +191,7 @@ bool load_vmcs(struct vmx_pages *vmx) if (evmcs_vmptrld(vmx->enlightened_vmcs_gpa, vmx->enlightened_vmcs)) return false; - current_evmcs->revision_id = vmcs_revision(); + current_evmcs->revision_id = EVMCS_VERSION; } return true; |