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Thu, 6 Aug 2026 08:38:33 +0000 (GMT) Date: Thu, 6 Aug 2026 10:38:29 +0200 From: Claudio Imbrenda To: Janosch Frank Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org, nrb@linux.ibm.com Subject: Re: [kvm-unit-tests 2/2] s390x: skey: Fence TCG protection checks Message-ID: <20260806103829.4265e613@p-imbrenda> In-Reply-To: <20260804142133.1745878-3-frankja@linux.ibm.com> References: <20260804142133.1745878-1-frankja@linux.ibm.com> <20260804142133.1745878-3-frankja@linux.ibm.com> Organization: IBM X-Mailer: Claws Mail 4.4.0 (GTK 3.24.52; x86_64-redhat-linux-gnu) Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODA2MDA2MyBTYWx0ZWRfX1QkS9J2aQ8ot hXRsnI0vif2LUM146t4IhY8KqawgDcJfDgj13AlhcYS/Xq9YJ88Z5btu9hauD049aIm+l6SnxQ+ 4ibe6itIcgV/NRj52jniFRjlSVfwA32lEhUpXfS2WqSShIy2ZyfYE4rL7o+xDwa5N08pyv7cNgO 9pbBEIItPEVy2AAz7KpIbTItff7bcskPSZ1BtQ3YJNqThyjZ5GT7Mg2kWQ35tRIOUvlGFNZdHJJ s6F/AJA3m+xx/u8mkw6JEh7r1YfzBbj18TaqWcgYM+cRQoHRNo9x4JKNftYnUocqxvTh+eyzDMh gyw8FDmUe/HBzVMJyf0LMwBZSMygFBg5lEHz+xVvV5IjDxIbyFCKPf01OJ5QA873VxTvueik4Dq MB1XmvPbm9uArwcFtJpA0Dlq+gNFk3dFO8ghXP32+wXchFo4VdbMokjABkBrfBYHuJKaLphvIN6 dngY3RInLCxDcn304VA== X-Authority-Analysis: v=2.4 cv=WIFPmHsR c=1 sm=1 tr=0 ts=6a74480f cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=kj9zAlcOel0A:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=VnNF1IyMAAAA:8 a=CllH9XaH7VEC85Y1ppIA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-GUID: W7dbGzFksX2j7EGznZtwiuarPEtGYZro X-Proofpoint-ORIG-GUID: W7dbGzFksX2j7EGznZtwiuarPEtGYZro X-Proofpoint-Spam-Info: AW1haW4tMjYwODA2MDA2MyBTYWx0ZWRfX3GNzh8wbXQqv cvEpLz+0ka7PyrFp5kz4m61TXsCd7ZHGliHNw/J6lDV3KopxqvZeyIXylGbHLJa+T1EW5f/Ti1R mgjQYsFEs3WZqmQJj9OY/SPUVRvVfz0= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-05_06,2026-08-05_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 malwarescore=0 suspectscore=0 clxscore=1015 impostorscore=0 bulkscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608060063 On Tue, 4 Aug 2026 14:16:29 +0000 Janosch Frank wrote: > TCG does not implement the skey memory protection, skip those tests > under TCG instead of filtering them in the CI logs. > > This way the test will PASS when run by humans and there's no > confusion why it fails anymore. > > Signed-off-by: Janosch Frank Reviewed-by: Claudio Imbrenda > --- > s390x/skey.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/s390x/skey.c b/s390x/skey.c > index bb769730..1fc95857 100644 > --- a/s390x/skey.c > +++ b/s390x/skey.c > @@ -14,6 +14,7 @@ > #include > #include > #include > +#include > #include > #include > #include > @@ -736,6 +737,13 @@ int main(void) > test_set(); > test_set_mb(); > test_chg(); > + > + if (detect_host() == HOST_IS_TCG) { > + report_skip("No actual access protection in TCG for skeys."); > + report_prefix_pop(); > + return report_summary(); > + } > + > test_test_protection(); > test_store_cpu_address(); > test_diag_308();