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Sun, 19 Jul 2026 13:03:06 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 66JD32RM33685830 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 19 Jul 2026 13:03:02 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 99AD520043; Sun, 19 Jul 2026 13:03:02 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9B3A420040; Sun, 19 Jul 2026 13:02:58 +0000 (GMT) Received: from li-18a0a34c-33fc-11b2-a85c-d9f1631c5692.ibm.com (unknown [9.124.218.35]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Sun, 19 Jul 2026 13:02:58 +0000 (GMT) From: Chinmay Rath To: thuth@redhat.com Cc: npiggin@gmail.com, harshpb@linux.ibm.com, lvivier@redhat.com, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, andrew.jones@linux.dev, sbhat@linux.ibm.com, Chinmay Rath Subject: [kvm-unit-tests PATCH v2 6/6] powerpc: Add a panic test Date: Sun, 19 Jul 2026 18:30:27 +0530 Message-ID: <20260719130027.2347519-7-rathc@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260719130027.2347519-1-rathc@linux.ibm.com> References: <20260719130027.2347519-1-rathc@linux.ibm.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Authority-Analysis: v=2.4 cv=HJXz0Itv c=1 sm=1 tr=0 ts=6a5ccb0b cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=pGLkceISAAAA:8 a=20KFwNOVAAAA:8 a=VnNF1IyMAAAA:8 a=dqXfYlxAYPwuIwgSaMQA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzE5MDEzOSBTYWx0ZWRfX0fsQN3/LVOpq pvSMpOTfvmTxVeWSgKs/t7zu9bpXmNVxYl3mytV3FU/cpFDpgTHX8TRN7act9jcy+xVzstcxshI HwSIvDsKypp2hYQ8jeua2GsYQ7wR7FBZWJ6fsXH0+fYFEyGIjCnq484OIsmEOGG241eCZM+ZeDz uz6fccZ1E8JnNWHnB03JEjaMaeoFhWbwtimLoS4AVCJVYLiW4OHj+uq5ztngKlTE4c8Ad66YdO7 EPI4uhYdDnn2BJk8vEZEFVGm9n/dLfGZoX8BqGavl2TtCTyqYvTA6ju23eErBVtRutM+orTzIM+ /KukNtWF8IbkB2jqU7dgQOReJeIUMU0Uhr8YrHbgZaIWhnlpfGZQLfEwDUgwlnCNOmKkjlRXiyu MhkTC/oV5xBx9lizdMroCctg43zD7BqzhYMhh51NdT6VQU6fKu1hHauNxqcTTOFHFkYkP+ut1Ml kr0g7EallxAZs4SLnSw== X-Proofpoint-ORIG-GUID: 41SXwHNkjh6DJ4917grMxDrsxWGcU4Ck X-Proofpoint-Spam-Info: AW1haW4tMjYwNzE5MDEzOSBTYWx0ZWRfX53t2CAbN1FZz KPa5zllqql+ps/adHcOOOHeeSXr5j6kb7ghrD8VVEgF78+2wJryt9hm/YXC8gGjtVEx/ZciTgDD OqDlNtCKllbjBRIIBbX5ocHhQLdIY/Q= X-Proofpoint-GUID: -DKkfGVFu4yTCoeG-0bmsDilufLcsW2l X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-19_04,2026-07-17_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 malwarescore=0 impostorscore=0 clxscore=1015 phishscore=0 spamscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607190139 From: Nicholas Piggin This adds a simple panic test for pseries that works with TCG (unlike the s390x panic tests), making it easier to test this part of the harness code. Signed-off-by: Nicholas Piggin Reviewed-by: Thomas Huth Signed-off-by: Chinmay Rath --- .gitlab-ci.yml | 2 ++ lib/powerpc/asm/rtas.h | 1 + lib/powerpc/rtas.c | 16 ++++++++++++++++ powerpc/run | 2 +- powerpc/selftest.c | 17 ++++++++++++++++- powerpc/unittests.cfg | 5 +++++ 6 files changed, 41 insertions(+), 2 deletions(-) diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml index 89329cd3..9d809b13 100644 --- a/.gitlab-ci.yml +++ b/.gitlab-ci.yml @@ -204,6 +204,7 @@ build-ppc64be: rtas-set-time-of-day selftest-migration selftest-migration-skip + selftest-panic selftest-setup sieve smp @@ -235,6 +236,7 @@ build-ppc64le: rtas-set-time-of-day selftest-migration selftest-migration-skip + selftest-panic selftest-setup sieve smp diff --git a/lib/powerpc/asm/rtas.h b/lib/powerpc/asm/rtas.h index 989b21bd..fdb3c544 100644 --- a/lib/powerpc/asm/rtas.h +++ b/lib/powerpc/asm/rtas.h @@ -26,6 +26,7 @@ extern int rtas_call(int token, int nargs, int nret, int *outputs, ...); extern int rtas_call_unlocked(struct rtas_args *args, int token, int nargs, int nret, int *outputs, ...); extern void rtas_power_off(void); +extern void rtas_os_panic(void); extern void rtas_stop_self(void); #endif /* __ASSEMBLER__ */ diff --git a/lib/powerpc/rtas.c b/lib/powerpc/rtas.c index 9c1e0aff..98eee24f 100644 --- a/lib/powerpc/rtas.c +++ b/lib/powerpc/rtas.c @@ -182,3 +182,19 @@ void rtas_power_off(void) ret = rtas_call_unlocked(&args, token, 2, 1, NULL, -1, -1); printf("RTAS power-off returned %d\n", ret); } + +void rtas_os_panic(void) +{ + struct rtas_args args; + uint32_t token; + int ret; + + ret = rtas_token("ibm,os-term", &token); + if (ret) { + puts("RTAS ibm,os-term not available\n"); + return; + } + + ret = rtas_call_unlocked(&args, token, 1, 1, NULL, "rtas_os_panic"); + printf("RTAS ibm,os-term returned %d\n", ret); +} diff --git a/powerpc/run b/powerpc/run index 06657764..718f08cb 100755 --- a/powerpc/run +++ b/powerpc/run @@ -57,7 +57,7 @@ fi command="$qemu -nodefaults $A $M $B $D" command+=" -display none -serial stdio -kernel" -command="$(migration_cmd) $(timeout_cmd) $command" +command="$(panic_cmd) $(migration_cmd) $(timeout_cmd) $command" # powerpc tests currently exit with rtas-poweroff, which exits with 0. # run_test treats that as a failure exit and returns 1, so we need diff --git a/powerpc/selftest.c b/powerpc/selftest.c index 8d1a2c76..f6f24d6a 100644 --- a/powerpc/selftest.c +++ b/powerpc/selftest.c @@ -7,6 +7,7 @@ */ #include #include +#include #include #include @@ -47,6 +48,17 @@ static void check_setup(int argc, char **argv) report_abort("missing input"); } +static void do_panic(void) +{ + if (machine_is_pseries()) { + rtas_os_panic(); + } else { + /* Cause a checkstop with MSR[ME] disabled */ + *((char *)0x10000000000) = 0; + } + report_fail("survived panic"); +} + int main(int argc, char **argv) { report_prefix_push("selftest"); @@ -60,7 +72,10 @@ int main(int argc, char **argv) check_setup(argc-2, &argv[2]); + } else if (strcmp(argv[1], "panic") == 0) { + do_panic(); + } else { + report_abort("unknown test %s", argv[1]); } - return report_summary(); } diff --git a/powerpc/unittests.cfg b/powerpc/unittests.cfg index 60c73086..edd5b3e1 100644 --- a/powerpc/unittests.cfg +++ b/powerpc/unittests.cfg @@ -19,6 +19,11 @@ test_args = 'setup smp=2 mem=1024' qemu_params = -m 1g groups = selftest +[selftest-panic] +file = selftest.elf +extra_params = -append 'panic' +groups = selftest panic + [selftest-migration] file = selftest-migration.elf machine = pseries -- 2.53.0