diff options
| -rw-r--r-- | tools/testing/selftests/kvm/arm64/vgic_init.c | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/tools/testing/selftests/kvm/arm64/vgic_init.c b/tools/testing/selftests/kvm/arm64/vgic_init.c index b3b5fb0ff0a9..743351aa998e 100644 --- a/tools/testing/selftests/kvm/arm64/vgic_init.c +++ b/tools/testing/selftests/kvm/arm64/vgic_init.c @@ -13,13 +13,12 @@ #include "kvm_util.h" #include "processor.h" #include "vgic.h" +#include "gic_v3.h" #define NR_VCPUS 4 #define REG_OFFSET(vcpu, offset) (((uint64_t)vcpu << 32) | offset) -#define GICR_TYPER 0x8 - #define VGIC_DEV_IS_V2(_d) ((_d) == KVM_DEV_TYPE_ARM_VGIC_V2) #define VGIC_DEV_IS_V3(_d) ((_d) == KVM_DEV_TYPE_ARM_VGIC_V3) @@ -675,6 +674,44 @@ static void test_v3_its_region(void) vm_gic_destroy(&v); } +static void test_v3_nassgicap(void) +{ + struct kvm_vcpu *vcpus[NR_VCPUS]; + bool has_nassgicap; + struct vm_gic vm; + u32 typer2; + int ret; + + vm = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS, vcpus); + kvm_device_attr_get(vm.gic_fd, KVM_DEV_ARM_VGIC_GRP_DIST_REGS, + GICD_TYPER2, &typer2); + has_nassgicap = typer2 & GICD_TYPER2_nASSGIcap; + + typer2 |= GICD_TYPER2_nASSGIcap; + ret = __kvm_device_attr_set(vm.gic_fd, KVM_DEV_ARM_VGIC_GRP_DIST_REGS, + GICD_TYPER2, &typer2); + if (has_nassgicap) + TEST_ASSERT(!ret, KVM_IOCTL_ERROR(KVM_DEVICE_ATTR_SET, ret)); + else + TEST_ASSERT(ret && errno == EINVAL, + "Enabled nASSGIcap even though it's unavailable"); + + typer2 &= ~GICD_TYPER2_nASSGIcap; + kvm_device_attr_set(vm.gic_fd, KVM_DEV_ARM_VGIC_GRP_DIST_REGS, + GICD_TYPER2, &typer2); + + kvm_device_attr_set(vm.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL, + KVM_DEV_ARM_VGIC_CTRL_INIT, NULL); + + typer2 ^= GICD_TYPER2_nASSGIcap; + ret = __kvm_device_attr_set(vm.gic_fd, KVM_DEV_ARM_VGIC_GRP_DIST_REGS, + GICD_TYPER2, &typer2); + TEST_ASSERT(ret && errno == EBUSY, + "Changed nASSGIcap after initializing the VGIC"); + + vm_gic_destroy(&vm); +} + /* * Returns 0 if it's possible to create GIC device of a given type (V2 or V3). */ @@ -730,6 +767,7 @@ void run_tests(uint32_t gic_dev_type) test_v3_last_bit_single_rdist(); test_v3_redist_ipa_range_check_at_vcpu_run(); test_v3_its_region(); + test_v3_nassgicap(); } } |