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Thu, 24 Mar 2022 17:41:00 +0000 (GMT) Received: from osiris (unknown [9.145.160.180]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Thu, 24 Mar 2022 17:41:00 +0000 (GMT) Date: Thu, 24 Mar 2022 18:40:59 +0100 From: Heiko Carstens To: Nico Boehr Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org, frankja@linux.ibm.com, imbrenda@linux.ibm.com, thuth@redhat.com, david@redhat.com, farman@linux.ibm.com Subject: Re: [kvm-unit-tests PATCH v2 3/9] s390x: gs: move to new header file Message-ID: References: <20220323170325.220848-1-nrb@linux.ibm.com> <20220323170325.220848-4-nrb@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220323170325.220848-4-nrb@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: B5zd9KHDrlc8CLpy3tAXgV-whoXC0NBZ X-Proofpoint-ORIG-GUID: GXWUFWsxk3lmYa1BvweaGJ3khnnimVgl X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.850,Hydra:6.0.425,FMLib:17.11.64.514 definitions=2022-03-24_06,2022-03-24_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 malwarescore=0 suspectscore=0 mlxlogscore=899 bulkscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 phishscore=0 mlxscore=0 lowpriorityscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2203240097 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Wed, Mar 23, 2022 at 06:03:19PM +0100, Nico Boehr wrote: ... > +static inline unsigned long load_guarded(unsigned long *p) > +{ > + unsigned long v; > + > + asm(".insn rxy,0xe3000000004c, %0,%1" > + : "=d" (v) > + : "m" (*p) > + : "r14", "memory"); > + return v; > +} It was like that before, but why is r14 within the clobber list? That doesn't make sense.