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Fri, 1 Jul 2022 10:02:11 +0000 (GMT) Received: from a46lp73.lnxne.boe (unknown [9.152.108.100]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 1 Jul 2022 10:02:11 +0000 (GMT) From: Steffen Eiden To: Heiko Carstens , Alexander Gordeev , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Vasily Gorbik , linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: nrb@linux.ibm.com Subject: [PATCH 0/2] s390: Autoload uvdevice module based on CPU feature Date: Fri, 1 Jul 2022 12:02:08 +0200 Message-Id: <20220701100210.5482-1-seiden@linux.ibm.com> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 Content-Type: text/plain; charset=y Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: D9j0uXnVXkJXdnPHltQzj_xFbQg1EXDh X-Proofpoint-ORIG-GUID: D9j0uXnVXkJXdnPHltQzj_xFbQg1EXDh X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-07-01_06,2022-06-28_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 mlxlogscore=948 phishscore=0 spamscore=0 priorityscore=1501 malwarescore=0 bulkscore=0 suspectscore=0 mlxscore=0 adultscore=0 impostorscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2204290000 definitions=main-2207010037 ARC-Seal: i=1; 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dkim=pass header.d=ibm.com header.s=pp1 header.b=omQqgtyO; spf=pass (imf31.hostedemail.com: domain of seiden@linux.ibm.com designates 148.163.156.1 as permitted sender) smtp.mailfrom=seiden@linux.ibm.com; dmarc=pass (policy=none) header.from=ibm.com X-Stat-Signature: kg3hs7e1jwxzz4gfohunocjmowdjprn3 X-Rspamd-Queue-Id: 346D12003C X-HE-Tag: 1656669738-577193 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Currently, the uvdevice (drivers/s390/char/uvdevice) must be loaded manually. We can, however, determine if the Ultravisor is available by observing facility 158.  This series, first, introduces the HWCAP_UV connected to facility 158. And, second, it automatically loads the uvdevice if HWCAP_UV is present. Steffen Eiden (2): s390/hwcaps: Add HWCAP_UV drivers/s390/char/uvdevice: Autoload module based on CPU feature arch/s390/include/asm/elf.h | 2 ++ arch/s390/kernel/processor.c | 5 +++++ drivers/s390/char/uvdevice.c | 5 ++--- 3 files changed, 9 insertions(+), 3 deletions(-) -- 2.35.3