KVM: selftests: define and use EVMCS_VERSION (7bcf732e) · Commits · 戴 / test

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>

tools/testing/selftests/kvm/include/evmcs.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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 {

tools/testing/selftests/kvm/lib/x86_64/vmx.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;

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