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Fri, 2 Oct 2026 08:24:52 +0000 (GMT) Received: from p-imbrenda (unknown [9.87.132.161]) by smtpav05.fra02v.mail.ibm.com (Postfix) with SMTP; Fri, 2 Oct 2026 08:24:52 +0000 (GMT) Date: Fri, 2 Oct 2026 10:24:51 +0200 From: Claudio Imbrenda To: Heiko Carstens Cc: 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 , Ilya Leoshkevich , Janosch Frank , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Subject: Re: [PATCH 24/32] s390/kvm: Convert inline assembly to EX_TABLE_INSN Message-ID: <20261002102451.7e21e99a@p-imbrenda> In-Reply-To: <20261001103247.1989111-25-hca@linux.ibm.com> References: <20261001103247.1989111-1-hca@linux.ibm.com> <20261001103247.1989111-25-hca@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: linux-kernel@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: AW1haW4tMjYxMDAyMDAzMiBTYWx0ZWRfX5fDOR2mVYqld KS4CSrVJH7FgR2rYqRWW5hW3cUkXlq+uB/N1XFIGNmc3eKtRxapvEyYmxb+Dxiov55Bqr70iXZa akUwcEJYJwyJeqpbDPoWsdPbK2ugqQfkaJFhvp3AOrgs2NzfLbAi2plholCVezwuUoWQrsJVtyO MRzNKtUyvVTR9yTKu8X7OS2R5LRUeQpvOXdc8bDJBcii34KfOVfr23xxyN8bm+A9LiKMPCwxHN6 chuVS8SIznQENzvlE2og8kUYlUY5ql6neg876GLQ24jMrd1R7V+0C8CyZZlUZXMHohwz34PZe0w aiE1/1Nmv7bG9xazUK/vS7TSbLIjxTjLM3xdj4RTfp8+RSDSe0xC89MwdPSSOkIHGyBItFvwu6U ei4ftPitHa/ZyWYBnYlVwzXd/uZd1aH4OHToCEKDmkw0xwbBeBkR7cI2qWhPA3Rw2F77WL6tqDF //pt6UOHde8OF8ukdkg== X-Authority-Analysis: v=2.4 cv=SPbXx+vH c=1 sm=1 tr=0 ts=6abf6a5a cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=kj9zAlcOel0A:10 a=660iZSQnnn4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=J19Xoqk6y7OjH45k9WEA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-ORIG-GUID: 1lj7fbOvbEvDEJbQziOD3c63kY59twUk X-Proofpoint-Spam-Info: AW1haW4tMjYxMDAyMDAzMiBTYWx0ZWRfX3OX4aLH6SxQE iOvmM4giOPqC10PmhRmZiNqj+pqC/XAdGwbFGaD3UHUtNe3UNC1d7TUIzcnFYhZGn9PElT4L71y bxRVXm40b+QmNCo6OFz/P3DBOOBlH+I= X-Proofpoint-GUID: 1lj7fbOvbEvDEJbQziOD3c63kY59twUk 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=2026-10-02_02,2026-10-01_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 clxscore=1015 spamscore=0 lowpriorityscore=0 malwarescore=0 adultscore=0 bulkscore=0 impostorscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610020032 On Thu, 1 Oct 2026 12:32:39 +0200 Heiko Carstens wrote: > Convert the gaccess mvcos exception table entries to use EX_TABLE_INSN. > With EX_TABLE_INSN entries always point to the faulting instruction, > so duplicate entries are removed. > > Signed-off-by: Heiko Carstens Acked-by: Claudio Imbrenda > --- > arch/s390/kvm/s390/gaccess.c | 11 +++++------ > 1 file changed, 5 insertions(+), 6 deletions(-) > > diff --git a/arch/s390/kvm/s390/gaccess.c b/arch/s390/kvm/s390/gaccess.c > index 405345ccc4f1..2d27dcb68002 100644 > --- a/arch/s390/kvm/s390/gaccess.c > +++ b/arch/s390/kvm/s390/gaccess.c > @@ -838,12 +838,11 @@ static int mvcos_key(void *to, const void *from, unsigned long size, u8 dst_key, > int exception = PGM_PROTECTION; > > asm_inline volatile( > - " lr %%r0,%[spec]\n" > - "0: mvcos %[to],%[from],%[size]\n" > - "1: lhi %[exc],0\n" > - "2:\n" > - EX_TABLE(0b, 2b) > - EX_TABLE(1b, 2b) > + " lr %%r0,%[spec]\n" > + "0: mvcos %[to],%[from],%[size]\n" > + " lhi %[exc],0\n" > + "1:\n" > + EX_TABLE_INSN(0b, 1b) > : [size] "+d" (size), [to] "=Q" (*(char *)to), [exc] "+d" (exception) > : [spec] "d" (spec.val), [from] "Q" (*(const char *)from) > : "memory", "cc", "0");