From patchwork Thu Jan 24 12:59:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Mueller X-Patchwork-Id: 10778903 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4DF6F746 for ; Thu, 24 Jan 2019 13:00:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 171AA2EBB1 for ; Thu, 24 Jan 2019 13:00:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1536C2EBE3; Thu, 24 Jan 2019 13:00:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 610D92EBB1 for ; Thu, 24 Jan 2019 13:00:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728044AbfAXNAQ (ORCPT ); Thu, 24 Jan 2019 08:00:16 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:37618 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728031AbfAXNAO (ORCPT ); Thu, 24 Jan 2019 08:00:14 -0500 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x0OCsR4g025491 for ; Thu, 24 Jan 2019 08:00:13 -0500 Received: from e06smtp07.uk.ibm.com (e06smtp07.uk.ibm.com [195.75.94.103]) by mx0a-001b2d01.pphosted.com with ESMTP id 2q7cpqkwev-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 24 Jan 2019 08:00:12 -0500 Received: from localhost by e06smtp07.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 24 Jan 2019 13:00:07 -0000 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x0OD05HD30474396 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 24 Jan 2019 13:00:05 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 42A865205A; Thu, 24 Jan 2019 13:00:05 +0000 (GMT) Received: from s38lp84.lnxne.boe (unknown [9.152.108.100]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTP id EE48552051; Thu, 24 Jan 2019 13:00:04 +0000 (GMT) From: Michael Mueller To: KVM Mailing List Cc: Linux-S390 Mailing List , linux-kernel@vger.kernel.org, Martin Schwidefsky , Heiko Carstens , Christian Borntraeger , Janosch Frank , David Hildenbrand , Cornelia Huck , Halil Pasic , Pierre Morel , Michael Mueller Subject: [PATCH v6 08/13] s390/cio: add function chsc_sgib() Date: Thu, 24 Jan 2019 13:59:34 +0100 X-Mailer: git-send-email 2.13.4 In-Reply-To: <20190124125939.130763-1-mimu@linux.ibm.com> References: <20190124125939.130763-1-mimu@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 19012413-0028-0000-0000-0000033D851A X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19012413-0029-0000-0000-000023FAC6C5 Message-Id: <20190124125939.130763-9-mimu@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-01-24_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=702 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1901240095 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch implements the Set Guest Information Block operation to request association or disassociation of a Guest Information Block (GIB) with the Adapter Interruption Facility. The operation is required to receive GIB alert interrupts for guest adapters in conjunction with AIV and GISA. Signed-off-by: Michael Mueller Reviewed-by: Sebastian Ott Reviewed-by: Pierre Morel Reviewed-by: Christian Borntraeger Acked-by: Halil Pasic Acked-by: Janosch Frank Acked-by: Cornelia Huck --- arch/s390/include/asm/cio.h | 1 + drivers/s390/cio/chsc.c | 37 +++++++++++++++++++++++++++++++++++++ drivers/s390/cio/chsc.h | 1 + 3 files changed, 39 insertions(+) diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index 225667652069..1727180e8ca1 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -331,5 +331,6 @@ extern void css_schedule_reprobe(void); /* Function from drivers/s390/cio/chsc.c */ int chsc_sstpc(void *page, unsigned int op, u16 ctrl, u64 *clock_delta); int chsc_sstpi(void *page, void *result, size_t size); +int chsc_sgib(u32 origin); #endif diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index a0baee25134c..4159c63a5fd2 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -1382,3 +1382,40 @@ int chsc_pnso_brinfo(struct subchannel_id schid, return chsc_error_from_response(brinfo_area->response.code); } EXPORT_SYMBOL_GPL(chsc_pnso_brinfo); + +int chsc_sgib(u32 origin) +{ + struct { + struct chsc_header request; + u16 op; + u8 reserved01[2]; + u8 reserved02:4; + u8 fmt:4; + u8 reserved03[7]; + /* operation data area begin */ + u8 reserved04[4]; + u32 gib_origin; + u8 reserved05[10]; + u8 aix; + u8 reserved06[4029]; + struct chsc_header response; + u8 reserved07[4]; + } *sgib_area; + int ret; + + spin_lock_irq(&chsc_page_lock); + memset(chsc_page, 0, PAGE_SIZE); + sgib_area = chsc_page; + sgib_area->request.length = 0x0fe0; + sgib_area->request.code = 0x0021; + sgib_area->op = 0x1; + sgib_area->gib_origin = origin; + + ret = chsc(sgib_area); + if (ret == 0) + ret = chsc_error_from_response(sgib_area->response.code); + spin_unlock_irq(&chsc_page_lock); + + return ret; +} +EXPORT_SYMBOL_GPL(chsc_sgib); diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h index 78aba8d94eec..e57d68e325a3 100644 --- a/drivers/s390/cio/chsc.h +++ b/drivers/s390/cio/chsc.h @@ -164,6 +164,7 @@ int chsc_get_channel_measurement_chars(struct channel_path *chp); int chsc_ssqd(struct subchannel_id schid, struct chsc_ssqd_area *ssqd); int chsc_sadc(struct subchannel_id schid, struct chsc_scssc_area *scssc, u64 summary_indicator_addr, u64 subchannel_indicator_addr); +int chsc_sgib(u32 origin); int chsc_error_from_response(int response); int chsc_siosl(struct subchannel_id schid);