KVM: selftests: enlightened VMPTRLD with an incorrect GPA (6d05a965) · Commits · 戴 / test

Check that guest doesn't hang when an invalid eVMCS GPA is specified. Testing that #UD is injected would probably be better but selftests lack the infrastructure currently. Signed-off-by:

Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by:

Paolo Bonzini <pbonzini@redhat.com>

tools/testing/selftests/kvm/x86_64/evmcs_test.c

+10 −2

Original line number	Diff line number	Diff line
		@@ -72,6 +72,10 @@ void guest_code(struct vmx_pages *vmx_pages)
		l1_guest_code(vmx_pages);

		GUEST_DONE();

		/* Try enlightened vmptrld with an incorrect GPA */
		evmcs_vmptrld(0xdeadbeef, vmx_pages->enlightened_vmcs);
		GUEST_ASSERT(vmlaunch());
		}

		int main(int argc, char *argv[])
		@@ -120,7 +124,7 @@ int main(int argc, char *argv[])
		case UCALL_SYNC:
		break;
		case UCALL_DONE:
		goto done;
		goto part1_done;
		default:
		TEST_FAIL("Unknown ucall %lu", uc.cmd);
		}
		@@ -152,6 +156,10 @@ int main(int argc, char *argv[])
		(ulong) regs2.rdi, (ulong) regs2.rsi);
		}

		done:
		part1_done:
		_vcpu_run(vm, VCPU_ID);
		TEST_ASSERT(run->exit_reason == KVM_EXIT_SHUTDOWN,
		"Unexpected successful VMEnter with invalid eVMCS pointer!");

		kvm_vm_free(vm);
		}

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