diff options
| author | Oliver Upton <oupton@google.com> | 2021-09-23 22:00:33 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-09-24 02:32:12 -0400 |
| commit | fbf094ce524113c694acabf3d385883f88372829 (patch) | |
| tree | faa633f9dd1faa5d1820ae48ad1387528791173c | |
| parent | 6bc6db000295332bae2c1e8815d7450b72923d23 (diff) | |
selftests: KVM: Call ucall_init when setting up in rseq_test
While x86 does not require any additional setup to use the ucall
infrastructure, arm64 needs to set up the MMIO address used to signal a
ucall to userspace. rseq_test does not initialize the MMIO address,
resulting in the test spinning indefinitely.
Fix the issue by calling ucall_init() during setup.
Fixes: 61e52f1630f5 ("KVM: selftests: Add a test for KVM_RUN+rseq to detect task migration bugs")
Signed-off-by: Oliver Upton <oupton@google.com>
Message-Id: <20210923220033.4172362-1-oupton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | tools/testing/selftests/kvm/rseq_test.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/rseq_test.c b/tools/testing/selftests/kvm/rseq_test.c index 060538bd405a..c5e0dd664a7b 100644 --- a/tools/testing/selftests/kvm/rseq_test.c +++ b/tools/testing/selftests/kvm/rseq_test.c @@ -180,6 +180,7 @@ int main(int argc, char *argv[]) * CPU affinity. */ vm = vm_create_default(VCPU_ID, 0, guest_code); + ucall_init(vm, NULL); pthread_create(&migration_thread, NULL, migration_worker, 0); |