[PATCH 02/16] KVM: selftests: Allow arm64 tests to create protected VMs

[Fuad Tabba]

On arm64, the VM type passed to KVM_CREATE_VM carries the IPA size,
which the selftest library fills in. The library rejects any type a test
provides in vm_shape.type. A protected VM is created by setting
KVM_VM_TYPE_ARM_PROTECTED in that type, so a test can't create one.

Accept KVM_VM_TYPE_ARM_PROTECTED from the test, and add the IPA size to
it as for any other VM.

Signed-off-by: Fuad Tabba <fuad.tabba at linux.dev>
---
 tools/testing/selftests/kvm/lib/kvm_util.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index d42e201eba763..96c1e70dba3d3 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -400,9 +400,10 @@ struct kvm_vm *____vm_create(struct vm_shape shape)
 	}
 
 #ifdef __aarch64__
-	TEST_ASSERT(!vm->type, "ARM doesn't support test-provided types");
+	TEST_ASSERT(!(vm->type & ~KVM_VM_TYPE_ARM_PROTECTED),
+		    "ARM supports only KVM_VM_TYPE_ARM_PROTECTED as a test-provided type");
 	if (vm->pa_bits != 40)
-		vm->type = KVM_VM_TYPE_ARM_IPA_SIZE(vm->pa_bits);
+		vm->type |= KVM_VM_TYPE_ARM_IPA_SIZE(vm->pa_bits);
 #endif
 
 	vm_open(vm);
-- 
2.47.3