From 98f94ce42ac672b2abdcf38cfc0e60fd52e04995 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 17 Feb 2022 12:16:20 -0800 Subject: [PATCH] KVM: selftests: Move KVM_CREATE_DEVICE_TEST code to separate helper Move KVM_CREATE_DEVICE_TEST to its own helper, identifying "real" versus "test" device creation based on a hardcoded boolean buried in the middle of a param list is painful for readers. Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- .../testing/selftests/kvm/aarch64/vgic_init.c | 10 ++++---- .../selftests/kvm/include/kvm_util_base.h | 3 ++- .../testing/selftests/kvm/lib/aarch64/vgic.c | 3 +-- tools/testing/selftests/kvm/lib/kvm_util.c | 23 ++++++++++++++----- 4 files changed, 25 insertions(+), 14 deletions(-) diff --git a/tools/testing/selftests/kvm/aarch64/vgic_init.c b/tools/testing/selftests/kvm/aarch64/vgic_init.c index 4928cb43c8a7..18054b94207f 100644 --- a/tools/testing/selftests/kvm/aarch64/vgic_init.c +++ b/tools/testing/selftests/kvm/aarch64/vgic_init.c @@ -649,24 +649,24 @@ int test_kvm_device(uint32_t gic_dev_type) v.vm = vm_create_default_with_vcpus(NR_VCPUS, 0, 0, guest_code, NULL); /* try to create a non existing KVM device */ - ret = _kvm_create_device(v.vm, 0, true, &fd); + ret = __kvm_test_create_device(v.vm, 0); TEST_ASSERT(ret && errno == ENODEV, "unsupported device"); /* trial mode */ - ret = _kvm_create_device(v.vm, gic_dev_type, true, &fd); + ret = __kvm_test_create_device(v.vm, gic_dev_type); if (ret) return ret; v.gic_fd = kvm_create_device(v.vm, gic_dev_type); - ret = _kvm_create_device(v.vm, gic_dev_type, false, &fd); + ret = __kvm_create_device(v.vm, gic_dev_type, &fd); TEST_ASSERT(ret && errno == EEXIST, "create GIC device twice"); /* try to create the other gic_dev_type */ other = VGIC_DEV_IS_V2(gic_dev_type) ? KVM_DEV_TYPE_ARM_VGIC_V3 : KVM_DEV_TYPE_ARM_VGIC_V2; - if (!_kvm_create_device(v.vm, other, true, &fd)) { - ret = _kvm_create_device(v.vm, other, false, &fd); + if (!__kvm_test_create_device(v.vm, other)) { + ret = __kvm_test_create_device(v.vm, other); TEST_ASSERT(ret && errno == EINVAL, "create GIC device while other version exists"); } diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h index 6e1926abb248..8795f4624c2c 100644 --- a/tools/testing/selftests/kvm/include/kvm_util_base.h +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h @@ -484,7 +484,8 @@ void vcpu_args_set(struct kvm_vm *vm, uint32_t vcpuid, unsigned int num, ...); int _kvm_device_check_attr(int dev_fd, uint32_t group, uint64_t attr); int kvm_device_check_attr(int dev_fd, uint32_t group, uint64_t attr); -int _kvm_create_device(struct kvm_vm *vm, uint64_t type, bool test, int *fd); +int __kvm_test_create_device(struct kvm_vm *vm, uint64_t type); +int __kvm_create_device(struct kvm_vm *vm, uint64_t type, int *fd); int kvm_create_device(struct kvm_vm *vm, uint64_t type); int _kvm_device_access(int dev_fd, uint32_t group, uint64_t attr, void *val, bool write); diff --git a/tools/testing/selftests/kvm/lib/aarch64/vgic.c b/tools/testing/selftests/kvm/lib/aarch64/vgic.c index c34f0f116f39..74b4bcaffcfa 100644 --- a/tools/testing/selftests/kvm/lib/aarch64/vgic.c +++ b/tools/testing/selftests/kvm/lib/aarch64/vgic.c @@ -51,8 +51,7 @@ int vgic_v3_setup(struct kvm_vm *vm, unsigned int nr_vcpus, uint32_t nr_irqs, nr_vcpus, nr_vcpus_created); /* Distributor setup */ - if (_kvm_create_device(vm, KVM_DEV_TYPE_ARM_VGIC_V3, - false, &gic_fd) != 0) + if (__kvm_create_device(vm, KVM_DEV_TYPE_ARM_VGIC_V3, &gic_fd)) return -1; kvm_device_access(gic_fd, KVM_DEV_ARM_VGIC_GRP_NR_IRQS, diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index cb2e42aa1c03..9c0122b0e393 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -1629,14 +1629,25 @@ int kvm_device_check_attr(int dev_fd, uint32_t group, uint64_t attr) return ret; } -int _kvm_create_device(struct kvm_vm *vm, uint64_t type, bool test, int *fd) +int __kvm_test_create_device(struct kvm_vm *vm, uint64_t type) { - struct kvm_create_device create_dev; + struct kvm_create_device create_dev = { + .type = type, + .flags = KVM_CREATE_DEVICE_TEST, + }; + + return __vm_ioctl(vm, KVM_CREATE_DEVICE, &create_dev); +} + +int __kvm_create_device(struct kvm_vm *vm, uint64_t type, int *fd) +{ + struct kvm_create_device create_dev = { + .type = type, + .fd = -1, + .flags = 0, + }; int ret; - create_dev.type = type; - create_dev.fd = -1; - create_dev.flags = test ? KVM_CREATE_DEVICE_TEST : 0; ret = __vm_ioctl(vm, KVM_CREATE_DEVICE, &create_dev); *fd = create_dev.fd; return ret; @@ -1646,7 +1657,7 @@ int kvm_create_device(struct kvm_vm *vm, uint64_t type) { int fd, ret; - ret = _kvm_create_device(vm, type, false, &fd); + ret = __kvm_create_device(vm, type, &fd); TEST_ASSERT(!ret, "KVM_CREATE_DEVICE IOCTL failed, rc: %i errno: %i", ret, errno); return fd;