On 7/23/24 11:31, Christoph Schlameuss wrote:
Add test case running code interacting with registers within a ucontrol VM.
- Add uc_gprs test case
The test uses the same VM setup using the fixture and debug macros introduced in earlier patches in this series.
Signed-off-by: Christoph Schlameuss schlameuss@linux.ibm.com
.../selftests/kvm/s390x/ucontrol_test.c | 132 ++++++++++++++++++ 1 file changed, 132 insertions(+)
diff --git a/tools/testing/selftests/kvm/s390x/ucontrol_test.c b/tools/testing/selftests/kvm/s390x/ucontrol_test.c index 527c431a9758..c98d5a3a315b 100644 --- a/tools/testing/selftests/kvm/s390x/ucontrol_test.c +++ b/tools/testing/selftests/kvm/s390x/ucontrol_test.c @@ -43,6 +43,23 @@ void require_ucontrol_admin(void) TEST_REQUIRE(kvm_has_cap(KVM_CAP_S390_UCONTROL)); } +/* Test program setting some registers and looping */ +extern char test_gprs_pgm[]; +asm("test_gprs_pgm:\n"
- "xgr %r0, %r0\n"
- "lgfi %r1,1\n"
[...]
Naming something PGM for handling anything else than Program Exceptions is not recommendable. PGM has been a stable name on s390 for code related to PGM exceptions
When first reading this I expected to find some kind of exception code.