Drop the explicit KVM_SEV_LAUNCH_UPDATE_VMSA call when creating an SEV-ES
VM in the SEV migration test, as sev_vm_create() automatically updates the
VMSA pages for SEV-ES guests. The only reason the duplicate call doesn't
cause visible problems is because the test doesn't actually try to run the
vCPUs. That will change when KVM adds a check to prevent userspace from
re-launching a VMSA (which corrupts the VMSA page due to KVM writing
encrypted private memory).
Fixes: 69f8e15ab61f ("KVM: selftests: Use the SEV library APIs in the intra-host migration test")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
tools/testing/selftests/kvm/x86/sev_migrate_tests.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/tools/testing/selftests/kvm/x86/sev_migrate_tests.c b/tools/testing/selftests/kvm/x86/sev_migrate_tests.c
index 0a6dfba3905b..6b0928e69051 100644
--- a/tools/testing/selftests/kvm/x86/sev_migrate_tests.c
+++ b/tools/testing/selftests/kvm/x86/sev_migrate_tests.c
@@ -36,8 +36,6 @@ static struct kvm_vm *sev_vm_create(bool es)
sev_vm_launch(vm, es ? SEV_POLICY_ES : 0);
- if (es)
- vm_sev_ioctl(vm, KVM_SEV_LAUNCH_UPDATE_VMSA, NULL);
return vm;
}
--
2.53.0.473.g4a7958ca14-goog