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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-04-10 16:17:05 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-04-15 12:08:45 -0400 |
| commit | 8cc2dd637b890d75613387daf57af7e8f3a32e33 (patch) | |
| tree | 2684d4c5e2f22e196a845b925179b1d88c83bae8 /tools/testing/selftests/kvm | |
| parent | 4cd94d125df531f9f569478eb3e025f08bc180f2 (diff) | |
| download | linux-8cc2dd637b890d75613387daf57af7e8f3a32e33.tar.bz2 | |
KVM: selftests: Add "zero" testcase to set_memory_region_test
Add a testcase for running a guest with no memslots to the memory region
test. The expected result on x86_64 is that the guest will trigger an
internal KVM error due to the initial code fetch encountering a
non-existent memslot and resulting in an emulation failure.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200410231707.7128-9-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/testing/selftests/kvm')
| -rw-r--r-- | tools/testing/selftests/kvm/x86_64/set_memory_region_test.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/x86_64/set_memory_region_test.c b/tools/testing/selftests/kvm/x86_64/set_memory_region_test.c index b556024af683..c274ce6b4ba2 100644 --- a/tools/testing/selftests/kvm/x86_64/set_memory_region_test.c +++ b/tools/testing/selftests/kvm/x86_64/set_memory_region_test.c @@ -289,6 +289,28 @@ static void test_delete_memory_region(void) kvm_vm_free(vm); } +static void test_zero_memory_regions(void) +{ + struct kvm_run *run; + struct kvm_vm *vm; + + pr_info("Testing KVM_RUN with zero added memory regions\n"); + + vm = vm_create(VM_MODE_DEFAULT, 0, O_RDWR); + vm_vcpu_add(vm, VCPU_ID); + + TEST_ASSERT(!ioctl(vm_get_fd(vm), KVM_SET_NR_MMU_PAGES, 64), + "KVM_SET_NR_MMU_PAGES failed, errno = %d\n", errno); + + vcpu_run(vm, VCPU_ID); + + run = vcpu_state(vm, VCPU_ID); + TEST_ASSERT(run->exit_reason == KVM_EXIT_INTERNAL_ERROR, + "Unexpected exit_reason = %u\n", run->exit_reason); + + kvm_vm_free(vm); +} + int main(int argc, char *argv[]) { int i, loops; @@ -296,6 +318,8 @@ int main(int argc, char *argv[]) /* Tell stdout not to buffer its content */ setbuf(stdout, NULL); + test_zero_memory_regions(); + if (argc > 1) loops = atoi(argv[1]); else |