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KVM: selftests: exit with 0 status code when tests cannot be run

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Right now, skipped tests are returning a failure exit code if /dev/kvm does
not exists.  Consistently return a zero status code so that various scripts
over the interwebs do not complain.  Also return a zero status code if
the KVM_CAP_SYNC_REGS capability is not present, and hardcode in the
test the register kinds that are covered (rather than just using whatever
value of KVM_SYNC_X86_VALID_FIELDS is provided by the kernel headers).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
2018-04-18 18:26:45 +02:00
parent 452a68d0ef
commit bcb2b94ae0
5 changed files with 43 additions and 20 deletions
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16
tools/testing/selftests/kvm/lib/kvm_util.c
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@@ -50,8 +50,8 @@ int kvm_check_cap(long cap)
int kvm_fd;
kvm_fd = open(KVM_DEV_PATH, O_RDONLY);
TEST_ASSERT(kvm_fd >= 0, "open %s failed, rc: %i errno: %i",
KVM_DEV_PATH, kvm_fd, errno);
if (kvm_fd < 0)
exit(KSFT_SKIP);
ret = ioctl(kvm_fd, KVM_CHECK_EXTENSION, cap);
TEST_ASSERT(ret != -1, "KVM_CHECK_EXTENSION IOCTL failed,\n"
@@ -91,8 +91,8 @@ struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm)
vm->mode = mode;
kvm_fd = open(KVM_DEV_PATH, perm);
TEST_ASSERT(kvm_fd >= 0, "open %s failed, rc: %i errno: %i",
KVM_DEV_PATH, kvm_fd, errno);
if (kvm_fd < 0)
exit(KSFT_SKIP);
/* Create VM. */
vm->fd = ioctl(kvm_fd, KVM_CREATE_VM, NULL);
@@ -418,8 +418,8 @@ struct kvm_cpuid2 *kvm_get_supported_cpuid(void)
cpuid = allocate_kvm_cpuid2();
kvm_fd = open(KVM_DEV_PATH, O_RDONLY);
TEST_ASSERT(kvm_fd >= 0, "open %s failed, rc: %i errno: %i",
KVM_DEV_PATH, kvm_fd, errno);
if (kvm_fd < 0)
exit(KSFT_SKIP);
ret = ioctl(kvm_fd, KVM_GET_SUPPORTED_CPUID, cpuid);
TEST_ASSERT(ret == 0, "KVM_GET_SUPPORTED_CPUID failed %d %d\n",
@@ -675,8 +675,8 @@ static int vcpu_mmap_sz(void)
int dev_fd, ret;
dev_fd = open(KVM_DEV_PATH, O_RDONLY);
TEST_ASSERT(dev_fd >= 0, "%s open %s failed, rc: %i errno: %i",
__func__, KVM_DEV_PATH, dev_fd, errno);
if (dev_fd < 0)
exit(KSFT_SKIP);
ret = ioctl(dev_fd, KVM_GET_VCPU_MMAP_SIZE, NULL);
TEST_ASSERT(ret >= sizeof(struct kvm_run),