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Mon, 12 Oct 2026 12:50:23 +0000 (GMT) Received: from [0.0.0.0] (unknown [9.87.157.242]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 12 Oct 2026 12:50:23 +0000 (GMT) Message-ID: <84bf6d68-ae70-4f11-a617-349cee297170@linux.ibm.com> Date: Mon, 12 Oct 2026 14:50:22 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 06/32] s390/tools: Generate bitmap of nullified program checks To: Heiko Carstens , Alexander Gordeev , Sven Schnelle , Vasily Gorbik , Christian Borntraeger , Niklas Schnelle , Matthew Rosato , Gerald Schaefer , Vineeth Vijayan , Peter Oberparleiter , Harald Freudenberger , Holger Dengler , Stefan Haberland , Jan Hoeppner , Janosch Frank , Claudio Imbrenda Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org References: <20261001103247.1989111-1-hca@linux.ibm.com> <20261001103247.1989111-7-hca@linux.ibm.com> Content-Language: en-US From: Ilya Leoshkevich In-Reply-To: <20261001103247.1989111-7-hca@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDEyMDA1MCBTYWx0ZWRfX+lVryioic1ZN UyiuzR2s7xRDmCJy+Y/u145JNBrbGDJ+eQ8rBmHW/reN39QIBDRGtrWLat/1pgJI4XHTfk19TI2 iqtI+58m+JuctVpoVSIy6lEKjhwkyEI4dpriQ8OGDPavOjuy/yURJcajvL0EpdsvhuqqZFqwYfw u44Y8vFUnZQuvY0A8adF1+dOvTUBD+lPdoLhuFbr5r0GkhG83V/0aQH2oBREt7XN38dfglV14/p TQsoY04wLFMF5QzQ+v0+xJfKxN1p8tv20h/BzCGGA3Jl40C10U3hBtZJvkJA2pffiEJwrrABI/p zlkajHGicaX8O7tT3U4ItRE3Gc/sPHfqznNmWJ2tKYccTf8Rz8/bAdtSFjoCd3kKNvqscV2NEHU GDcE8F1CdLDjnIPmS+WDFw1h/EEf7IIOHDqZMOeZ852m61YobzZzkJJFIh45Oxv0QrCx16OOf3C AcND6PGKupWu89/E4lw== X-Proofpoint-Spam-Info: AW1haW4tMjYxMDEyMDA1MCBTYWx0ZWRfXxj29mxTTKF2x rwazyMvthxXRTrpAApwc7xi4uMRTj5/z0xpK9lda7hVPdxwgBGkkJUaaW8bXFMM/8SrpeX9wwEV Lc/zwxRTaPgBGul2oP1gc3ceIuAluuc= X-Proofpoint-ORIG-GUID: T63PF53TqjifaJ9kMGQ8cbC4sWYsgDQw X-Authority-Analysis: v=2.4 cv=a6KlZkSF c=1 sm=1 tr=0 ts=6accd795 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=VnNF1IyMAAAA:8 a=gSfIQeQyo1-bQS2XZOAA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: T63PF53TqjifaJ9kMGQ8cbC4sWYsgDQw 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=2026-10-12_04,2026-10-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 malwarescore=0 spamscore=0 suspectscore=0 clxscore=1015 phishscore=0 priorityscore=1501 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610120050 On 10/1/26 12:32, Heiko Carstens wrote: > Add PGM_CHECKS_NULLIFIED bitmap to gen_bitmaps and add a --pgmcheck > command line option to generate the pgmcheck-defs.h header file. The > bitmap specifies which program checks are nullified, and will be used > with future changes. > > Change gen_bitmaps.c so it can create bitmaps with different bit > numbering: MSB0 bit numbering like before (most significant bit is > bit 0), and LSB0 bit numbering (least significant bit is bit 0), > which is used for the new bitmap. > > Signed-off-by: Heiko Carstens > --- > arch/s390/include/asm/Kbuild | 1 + > arch/s390/tools/Makefile | 8 +++++- > arch/s390/tools/gen_bitmaps.c | 54 +++++++++++++++++++++++++++++++++-- > 3 files changed, 59 insertions(+), 4 deletions(-) [...] > +static struct bitmap_def pgm_check_defs[] = { > + { > + .name = "PGM_CHECKS_NULLIFIED", > + .inverted = 0, > + .maxbit = 127, > + .bits = (int[]){ > + 0x10, /* Segment Translation */ > + 0x11, /* Page Translation */ > + 0x16, /* Trace Table */ > + 0x20, /* AFX Translation */ > + 0x21, /* ASX Translation */ > + 0x22, /* LX Translation */ > + 0x23, /* EX Translation */ > + 0x24, /* Primary Authority */ > + 0x25, /* Secondary Authority */ > + 0x26, /* LFX Translation */ > + 0x27, /* LSX Translation */ > + 0x29, /* ALEN Translation */ > + 0x2a, /* ALE Sequence */ > + 0x2b, /* ASTE Validity */ > + 0x2c, /* ASTE Sequence */ > + 0x2d, /* Extended Authority */ > + 0x2e, /* LSTE Sequence */ > + 0x2f, /* ASTE Instance */ > + 0x30, /* Stack Full */ > + 0x31, /* Stack Empty */ > + 0x32, /* Stack Specification */ > + 0x33, /* Stack Type */ > + 0x34, /* Stack Operation */ > + 0x38, /* ASCE Type */ > + 0x39, /* Region First Translation */ > + 0x3a, /* Region Second Translation */ > + 0x3b, /* Region Third Translation */ > + 0x3d, /* Secure Storage Access */ > + -1 /* END */ > + } > + }, > +}; Do we want Crypto-Operation Exception (0x119) here? In any case: Reviewed-by: Ilya Leoshkevich