diff options
| author | Oliver Upton <oliver.upton@linux.dev> | 2025-09-26 15:44:54 -0700 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2025-10-13 14:17:03 +0100 |
| commit | 890c608b4d5e6a616693da92a2d4e7de4ab9e6c5 (patch) | |
| tree | e1dbae856763258c44c5ce954f4a322134b12ac4 /tools/testing/selftests/kvm/include | |
| parent | a46c09b382eea3f9e3d16576096b987a2171fcca (diff) | |
KVM: arm64: selftests: Test effective value of HCR_EL2.AMO
A defect against the architecture now allows an implementation to treat
AMO as 1 when HCR_EL2.{E2H, TGE} = {1, 0}. KVM now takes advantage of
this interpretation to address a quality of emulation issue w.r.t.
SError injection.
Add a corresponding test case and expect a pending SError to be taken.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'tools/testing/selftests/kvm/include')
| -rw-r--r-- | tools/testing/selftests/kvm/include/arm64/processor.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/tools/testing/selftests/kvm/include/arm64/processor.h b/tools/testing/selftests/kvm/include/arm64/processor.h index 6f481475c135..ff928716574d 100644 --- a/tools/testing/selftests/kvm/include/arm64/processor.h +++ b/tools/testing/selftests/kvm/include/arm64/processor.h @@ -305,7 +305,17 @@ void test_wants_mte(void); void test_disable_default_vgic(void); bool vm_supports_el2(struct kvm_vm *vm); -static bool vcpu_has_el2(struct kvm_vcpu *vcpu) + +static inline bool test_supports_el2(void) +{ + struct kvm_vm *vm = vm_create(1); + bool supported = vm_supports_el2(vm); + + kvm_vm_free(vm); + return supported; +} + +static inline bool vcpu_has_el2(struct kvm_vcpu *vcpu) { return vcpu->init.features[0] & BIT(KVM_ARM_VCPU_HAS_EL2); } |