From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30E79CCA479 for ; Fri, 1 Jul 2022 10:02:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235425AbiGAKCa (ORCPT ); Fri, 1 Jul 2022 06:02:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235300AbiGAKCV (ORCPT ); Fri, 1 Jul 2022 06:02:21 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E31B573916; Fri, 1 Jul 2022 03:02:20 -0700 (PDT) Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 2619k8df030154; Fri, 1 Jul 2022 10:02:19 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=G2k7CkRhM4+bJHIwrEHXUCSfbTcAi9U5SGI1kEbWwv8=; b=iRIo6+tjWNPnCxEH4T9xFky+AR+20GdKytIn8RmporNrmjZdnLwC6kmr4Vjw+0SQBtCs sCSitwZQsaMEkrEuDdOswRkD659PReTnRMmvmnIMiIGTbJe7u2NqwjdNbiYMVlDWjMsB TU/ryzX+8g+bypahyAF30SRDUelJMZiU8kbxPS6IhjbvG6UZXfaIyrBBusPARstZqG0b cED72jCU9nsrHhTtOVihlI3SFOrLLQQCnQ4wYpWSO4I3oAvmB5IjZ81I+rUiH1Fl13Yo pAfTHjwD2HQ1EWRlJD7nU0I5Lvaqg6jmCo4X/eSTV2rMjvt/5ynpaKJhyBGe86VFQ5fV zg== Received: from ppma06ams.nl.ibm.com (66.31.33a9.ip4.static.sl-reverse.com [169.51.49.102]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3h1xk68cbq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 01 Jul 2022 10:02:18 +0000 Received: from pps.filterd (ppma06ams.nl.ibm.com [127.0.0.1]) by ppma06ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 2619pPJN003780; Fri, 1 Jul 2022 10:02:16 GMT Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by ppma06ams.nl.ibm.com with ESMTP id 3gwsmj9j1k-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 01 Jul 2022 10:02:16 +0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 261A2DoA21299496 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 1 Jul 2022 10:02:13 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 36716AE051; Fri, 1 Jul 2022 10:02:13 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 65036AE04D; Fri, 1 Jul 2022 10:02:12 +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 10:02:12 +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 1/2] s390/hwcaps: Add HWCAP_UV Date: Fri, 1 Jul 2022 12:02:09 +0200 Message-Id: <20220701100210.5482-2-seiden@linux.ibm.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220701100210.5482-1-seiden@linux.ibm.com> References: <20220701100210.5482-1-seiden@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: fmjAmGq8XuR83ncT_rG7F7RUoS35Nhoq X-Proofpoint-GUID: fmjAmGq8XuR83ncT_rG7F7RUoS35Nhoq 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 malwarescore=0 adultscore=0 lowpriorityscore=0 spamscore=0 bulkscore=0 mlxlogscore=962 mlxscore=0 clxscore=1015 priorityscore=1501 phishscore=0 suspectscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2204290000 definitions=main-2207010037 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds a hardware capability for the Ultravisor. This capability will be present if facility 158 is enabled. Signed-off-by: Steffen Eiden --- arch/s390/include/asm/elf.h | 2 ++ arch/s390/kernel/processor.c | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index 70a30ae258b7..3a5e89ce4fd0 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -115,6 +115,7 @@ enum { HWCAP_NR_NNPA = 20, HWCAP_NR_PCI_MIO = 21, HWCAP_NR_SIE = 22, + HWCAP_NR_UV = 23, HWCAP_NR_MAX }; @@ -142,6 +143,7 @@ enum { #define HWCAP_NNPA BIT(HWCAP_NR_NNPA) #define HWCAP_PCI_MIO BIT(HWCAP_NR_PCI_MIO) #define HWCAP_SIE BIT(HWCAP_NR_SIE) +#define HWCAP_UV BIT(HWCAP_NR_UV) /* * These are used to set parameters in the core dumps. diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index aa0e0e7fc773..80ccd57a2b00 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -141,6 +141,7 @@ static void show_cpu_summary(struct seq_file *m, void *v) [HWCAP_NR_NNPA] = "nnpa", [HWCAP_NR_PCI_MIO] = "pcimio", [HWCAP_NR_SIE] = "sie", + [HWCAP_NR_UV] = "uv", }; int i, cpu; @@ -249,6 +250,10 @@ static int __init setup_hwcaps(void) if (sclp.has_sief2) elf_hwcap |= HWCAP_SIE; + /* ultravisor-call (secure execution) */ + if (test_facility(158)) + elf_hwcap |= HWCAP_UV; + return 0; } arch_initcall(setup_hwcaps); -- 2.35.3