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Wed, 8 Jul 2026 10:52:03 +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 6/6] powerpc: Add a panic test Date: Wed, 8 Jul 2026 16:21:22 +0530 Message-ID: <20260708105122.1177210-7-rathc@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260708105122.1177210-1-rathc@linux.ibm.com> References: <20260708105122.1177210-1-rathc@linux.ibm.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-GUID: v-DDk_osieqSnLCExvUN8ugctUkFHcaY X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA4MDEwNSBTYWx0ZWRfX0YZ8TpDVJpei KQu5lFk7DofRufMPWIN/n5H8hL6iWOxW533cUHWZytiUbDxUNAzmvyt07ueSf4qpRYuGk5uQpkH UKwgh2KwAHKCN3W5Lm8Bl/PiE1tOg01V7qVKzQnElR+z080DE0iLPCK6/QvfUBII97neJ2Q5n+1 TXGX6GnR7hD5MU8ujNxt+yhhxIuuwHhqffC8QqAVlf/GQtU46XpB2MUkoX5E2GcXbiXT2NqeImK EUjJBuqd/7vZMhRDPzFFWRdsDsuXK7zieyZtrLGdhWQVLyH3BF7WZcxDb18ZO/wbXkjvhqtxyy8 2ZJ5TZAQWcsfQrVT0yNNq1DtOOeqPvCGr6lZ9MxPZoi2ytclR9VjSo3EFnnzGvzETr1GQnlYJF8 8QPwAke4orbtzWy2CWltKVjejoSe11Mcd/2stsQ4DXKjQcqIq09xbqgkqBBbbvU3rFX+HOuDmHN vSPlEbTvQ7JA0+Bvajg== X-Proofpoint-ORIG-GUID: lCaK8spx5VMHCxhiDy81Lmoi6aoGLHIQ X-Authority-Analysis: v=2.4 cv=FqQ1OWrq c=1 sm=1 tr=0 ts=6a4e2bdc cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=pGLkceISAAAA:8 a=20KFwNOVAAAA:8 a=VnNF1IyMAAAA:8 a=dqXfYlxAYPwuIwgSaMQA:9 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA4MDEwNSBTYWx0ZWRfX/d35rhMGcvgv lMGSTDqshEHIaIRUogyUz3hgeWPeWNc3gYYGlvei3AbgNHvFjZ0nX/hG+BMkPeB/GMx+E4uzPi8 94+yiWWwRWb0T7/IbdP4e3uoOWTeags= 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=2026-07-08_01,2026-07-06_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 clxscore=1015 malwarescore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 suspectscore=0 spamscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607080105 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 b28d1eb5..5b5d6036 100644 --- a/.gitlab-ci.yml +++ b/.gitlab-ci.yml @@ -205,6 +205,7 @@ build-ppc64be: selftest-migration selftest-migration-skip selftest-migration-ci + selftest-panic selftest-setup sieve smp @@ -238,6 +239,7 @@ build-ppc64le: selftest-migration selftest-migration-skip selftest-migration-ci + 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 62630ead..afabb46c 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