tools/testing/selftests/kvm/arm64/at.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/kvm/arm64/at.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/kvm/arm64/at.c
Extension
.c
Size
3787 bytes
Lines
157
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

switch (get_ucall(vcpu, &uc)) {
		case UCALL_DONE:
			return;
		case UCALL_SYNC:
			handle_sync(vcpu, &uc);
			continue;
		case UCALL_ABORT:
			REPORT_GUEST_ASSERT(uc);
			return;
		default:
			TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
		}
	}
}

int main(void)
{
	struct kvm_vcpu_init init;
	struct kvm_vcpu *vcpu;
	struct kvm_vm *vm;

	TEST_REQUIRE(kvm_check_cap(KVM_CAP_ARM_EL2));

	vm = vm_create(1);

	kvm_get_default_vcpu_target(vm, &init);
	init.features[0] |= BIT(KVM_ARM_VCPU_HAS_EL2);
	vcpu = aarch64_vcpu_add(vm, 0, &init, guest_code);
	kvm_arch_vm_finalize_vcpus(vm);

	virt_map(vm, TEST_ADDR, TEST_ADDR, 1);
	ptep_hva = virt_get_pte_hva_at_level(vm, TEST_ADDR, 3);
	run_test(vcpu);

	kvm_vm_free(vm);
	return 0;
}

Annotation

Implementation Notes