From patchwork Thu Apr 28 13:00:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janosch Frank X-Patchwork-Id: 12830657 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 3F675C4332F for ; Thu, 28 Apr 2022 13:05:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346808AbiD1NI4 (ORCPT ); Thu, 28 Apr 2022 09:08:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56928 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346770AbiD1NIt (ORCPT ); Thu, 28 Apr 2022 09:08:49 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2108788784; Thu, 28 Apr 2022 06:05:35 -0700 (PDT) Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 23SBoXvB025250; Thu, 28 Apr 2022 13:05:34 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=D5tgUAeYcHLPfTfUGanjY8nkWCjLROLGmNJIpowKGY8=; b=FY+LVJELE5IHq61jKlnpND+4Jnkejw3YDDWurUt+zUkFpVuq9VEKMi/CuB8z/mOZaJp6 /ZUxxChPRlY7XyWssgpusMX9SZSwenlLYPlm8mQYBhLI3BjrvXLgo0Lh96CMAm1nfeJN RLPyvFKkXDqYuFFi1RH1CLB6Hect2WlcF6MJhvIXCFxp4JaLHzo+Q5t6xr+CaskUlAzA S6Twrm1ox8yykWp7qZ8uqoaLNjTAbpWn6JhB4boMY7J5s4YlukxFCoDyr7se7mYeMnFS 3nUuEz//0xTwq7wvTQ8wk7NxdI9sJA7XzDu/c1KcFDQ7HcCbNFPoJV37HTQY9er7dkgU Hw== Received: from ppma03fra.de.ibm.com (6b.4a.5195.ip4.static.sl-reverse.com [149.81.74.107]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3fqqtmwh8b-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 28 Apr 2022 13:05:34 +0000 Received: from pps.filterd (ppma03fra.de.ibm.com [127.0.0.1]) by ppma03fra.de.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 23SCwoqX027145; Thu, 28 Apr 2022 13:05:32 GMT Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by ppma03fra.de.ibm.com with ESMTP id 3fm938wyk8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 28 Apr 2022 13:05:32 +0000 Received: from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 23SD5TRp50463138 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 28 Apr 2022 13:05:29 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2ED884203F; Thu, 28 Apr 2022 13:05:29 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A679C42042; Thu, 28 Apr 2022 13:05:28 +0000 (GMT) Received: from linux6.. (unknown [9.114.12.104]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 28 Apr 2022 13:05:28 +0000 (GMT) From: Janosch Frank To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, borntraeger@linux.ibm.com, imbrenda@linux.ibm.com Subject: [PATCH 1/9] s390x: Add SE hdr query information Date: Thu, 28 Apr 2022 13:00:54 +0000 Message-Id: <20220428130102.230790-2-frankja@linux.ibm.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220428130102.230790-1-frankja@linux.ibm.com> References: <20220428130102.230790-1-frankja@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 6iL59dmWolnczqVQ-0aPletvhSKUYBN5 X-Proofpoint-GUID: 6iL59dmWolnczqVQ-0aPletvhSKUYBN5 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.858,Hydra:6.0.486,FMLib:17.11.64.514 definitions=2022-04-28_01,2022-04-28_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 bulkscore=0 adultscore=0 impostorscore=0 malwarescore=0 suspectscore=0 phishscore=0 priorityscore=1501 spamscore=0 clxscore=1015 mlxlogscore=999 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2204280081 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org We have information about the supported se header version and pcf bits so let's expose it via the sysfs files. Signed-off-by: Janosch Frank Reviewed-by: Claudio Imbrenda --- arch/s390/boot/uv.c | 2 ++ arch/s390/include/asm/uv.h | 7 ++++++- arch/s390/kernel/uv.c | 20 ++++++++++++++++++++ 3 files changed, 28 insertions(+), 1 deletion(-) diff --git a/arch/s390/boot/uv.c b/arch/s390/boot/uv.c index e6be155ab2e5..b100b57cf15d 100644 --- a/arch/s390/boot/uv.c +++ b/arch/s390/boot/uv.c @@ -41,6 +41,8 @@ void uv_query_info(void) uv_info.max_num_sec_conf = uvcb.max_num_sec_conf; uv_info.max_guest_cpu_id = uvcb.max_guest_cpu_id; uv_info.uv_feature_indications = uvcb.uv_feature_indications; + uv_info.supp_se_hdr_ver = uvcb.supp_se_hdr_versions; + uv_info.supp_se_hdr_pcf = uvcb.supp_se_hdr_pcf; } #ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h index cfea7b77a5b8..46498b8c587b 100644 --- a/arch/s390/include/asm/uv.h +++ b/arch/s390/include/asm/uv.h @@ -110,7 +110,10 @@ struct uv_cb_qui { u8 reserved88[158 - 136]; /* 0x0088 */ u16 max_guest_cpu_id; /* 0x009e */ u64 uv_feature_indications; /* 0x00a0 */ - u8 reserveda8[200 - 168]; /* 0x00a8 */ + u64 reserveda8; /* 0x00a8 */ + u64 supp_se_hdr_versions; /* 0x00b0 */ + u64 supp_se_hdr_pcf; /* 0x00b8 */ + u64 reservedc0; /* 0x00c0 */ } __packed __aligned(8); /* Initialize Ultravisor */ @@ -307,6 +310,8 @@ struct uv_info { unsigned int max_num_sec_conf; unsigned short max_guest_cpu_id; unsigned long uv_feature_indications; + unsigned long supp_se_hdr_ver; + unsigned long supp_se_hdr_pcf; }; extern struct uv_info uv_info; diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c index a5425075dd25..852840384e75 100644 --- a/arch/s390/kernel/uv.c +++ b/arch/s390/kernel/uv.c @@ -392,6 +392,24 @@ static ssize_t uv_query_facilities(struct kobject *kobj, static struct kobj_attribute uv_query_facilities_attr = __ATTR(facilities, 0444, uv_query_facilities, NULL); +static ssize_t uv_query_supp_se_hdr_ver(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "%lx\n", uv_info.supp_se_hdr_ver); +} + +static struct kobj_attribute uv_query_supp_se_hdr_ver_attr = + __ATTR(supp_se_hdr_ver, 0444, uv_query_supp_se_hdr_ver, NULL); + +static ssize_t uv_query_supp_se_hdr_pcf(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "%lx\n", uv_info.supp_se_hdr_pcf); +} + +static struct kobj_attribute uv_query_supp_se_hdr_pcf_attr = + __ATTR(supp_se_hdr_pcf, 0444, uv_query_supp_se_hdr_pcf, NULL); + static ssize_t uv_query_feature_indications(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { @@ -437,6 +455,8 @@ static struct attribute *uv_query_attrs[] = { &uv_query_max_guest_cpus_attr.attr, &uv_query_max_guest_vms_attr.attr, &uv_query_max_guest_addr_attr.attr, + &uv_query_supp_se_hdr_ver_attr.attr, + &uv_query_supp_se_hdr_pcf_attr.attr, NULL, };