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Tue, 02 Jun 2026 06:49:09 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 6526n6vY50331912 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 2 Jun 2026 06:49:06 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8311820043; Tue, 2 Jun 2026 06:49:06 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A4D9520040; Tue, 2 Jun 2026 06:49:03 +0000 (GMT) Received: from li-18a0a34c-33fc-11b2-a85c-d9f1631c5692.bl1-in.ibm.com (unknown [9.123.8.229]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 2 Jun 2026 06:49:03 +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 RFC PATCH 6/6] powerpc: Add a panic test Date: Tue, 2 Jun 2026 12:18:06 +0530 Message-ID: <20260602064806.3101025-7-rathc@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260602064806.3101025-1-rathc@linux.ibm.com> References: <20260602064806.3101025-1-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-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjAyMDA1OSBTYWx0ZWRfXxcVHmJT7C1Cy ZjNR8hRtuWl7MfFo5R+9n3ov14AOjLOv7M3zNt7DnYpnfq/JOnSFI6wukbaa4g6oYRZ/lMAIhEn VFmdb1wcwWnmDqBgomu8L+DGLKKx4Rqti1Bb6tKTyOZSRVg+3MSQpkJqGEkqoJC94aX4mTqXmb1 c+u0vXPpaNSNZ1Ni5GGGewzejs3VkCc8v7tqNfyZie4PwRO5/vDomEV95b4e+ZmY08fOGpFPtO5 sQEWIz2gonrqk3HaqPKlhn/A+Mlw1Uwi/hRBSLz0cm/DQ935AGPBXktM/xREzsa+Vgu3Ck7Zfuf o67vFLkSY2YEEXQa+okglCgncgHY6ILg8I61tUF/9Rz1pMgjPrqxzJqEV47Wbs8rzaO9U6OZ66U 8ykSlNngJAhCQeuz2DRgxMzy9cs+6zV79DdKr80Wb1umPbMp8kownknafdlkrzWrReeQPTJn+Cx pCBaFoUjlRbQO10GGaA== X-Proofpoint-ORIG-GUID: qjLoDP_gsXm6Alr-SGRxPn_65a74ShpF X-Authority-Analysis: v=2.4 cv=cOzQdFeN c=1 sm=1 tr=0 ts=6a1e7ce7 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=pGLkceISAAAA:8 a=20KFwNOVAAAA:8 a=VnNF1IyMAAAA:8 a=8EgYE67y1SrcKmc73U4A:9 X-Proofpoint-GUID: cbsenqb9khnex6cEo2_jhblo8datPq5U X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-01_07,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 spamscore=0 bulkscore=0 malwarescore=0 phishscore=0 suspectscore=0 priorityscore=1501 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606020059 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 --- lib/powerpc/asm/rtas.h | 1 + lib/powerpc/rtas.c | 16 ++++++++++++++++ powerpc/run | 2 +- powerpc/selftest.c | 17 ++++++++++++++++- powerpc/unittests.cfg | 5 +++++ 5 files changed, 39 insertions(+), 2 deletions(-) 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 168af206..d1395464 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 gitlab-ci +[selftest-panic] +file = selftest.elf +extra_params = -append 'panic' +groups = selftest panic gitlab-ci + [selftest-migration] file = selftest-migration.elf machine = pseries -- 2.53.0