From patchwork Mon Jun 21 09:58:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 12334487 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 781BBC4743C for ; Mon, 21 Jun 2021 10:32:45 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 31C6C6113E for ; Mon, 21 Jun 2021 10:32:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 31C6C6113E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:41590 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lvHES-0005bb-BD for qemu-devel@archiver.kernel.org; Mon, 21 Jun 2021 06:32:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35812) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lvGjF-0000X7-Nt for qemu-devel@nongnu.org; Mon, 21 Jun 2021 06:00:29 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:57541) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lvGjB-0007TR-Rc for qemu-devel@nongnu.org; Mon, 21 Jun 2021 06:00:29 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1624269625; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=a619Oxq7VM/K+Gf9mzcS/8TX4Z3nCJmWLWVBWZawoIk=; b=gyq8Dbb8cL96ZYmWvwGuqLHyStiI7wXp6vuJgDhRrbsD8n//boHfJTHZVNoVFramaQBojy bz2rTYIp9V97w+d+QY/tc/b5qD9QnVl4AgF5aBCDvR+CmnN/hZTMicawkBbrwDqaQzdWmW Zx+HWLI3/4vW6oIfoVoXWxOiNDXb6Rc= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-229-pZQdMX_ONFScUke1fb6eXQ-1; Mon, 21 Jun 2021 06:00:21 -0400 X-MC-Unique: pZQdMX_ONFScUke1fb6eXQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2D3F2100CEC0; Mon, 21 Jun 2021 10:00:20 +0000 (UTC) Received: from gondolin.fritz.box (ovpn-113-141.ams2.redhat.com [10.36.113.141]) by smtp.corp.redhat.com (Postfix) with ESMTP id E02003AC1; Mon, 21 Jun 2021 10:00:18 +0000 (UTC) From: Cornelia Huck To: Peter Maydell Subject: [PULL 34/37] s390x/css: Introduce an ESW struct Date: Mon, 21 Jun 2021 11:58:39 +0200 Message-Id: <20210621095842.335162-35-cohuck@redhat.com> In-Reply-To: <20210621095842.335162-1-cohuck@redhat.com> References: <20210621095842.335162-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=cohuck@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=cohuck@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.299, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eric Farman , qemu-s390x@nongnu.org, Cornelia Huck , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Eric Farman The Interrupt Response Block is comprised of several other structures concatenated together, but only the 12-byte Subchannel-Status Word (SCSW) is defined as a proper struct. Everything else is a simple array of 32-bit words. Let's define a proper struct for the 20-byte Extended-Status Word (ESW) so that we can make good decisions about the sense data that would go into the ECW area for virtual vs passthrough devices. [CH: adapted ESW definition to build with mingw, as discussed] Signed-off-by: Eric Farman Message-Id: <20210617232537.1337506-2-farman@linux.ibm.com> Signed-off-by: Cornelia Huck --- hw/s390x/css.c | 19 +++++++++++++------ include/hw/s390x/ioinst.h | 12 +++++++++++- 2 files changed, 24 insertions(+), 7 deletions(-) diff --git a/hw/s390x/css.c b/hw/s390x/css.c index bed46f5ec3a2..2025507eddc1 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -1335,6 +1335,14 @@ static void copy_schib_to_guest(SCHIB *dest, const SCHIB *src) } } +static void copy_esw_to_guest(ESW *dest, const ESW *src) +{ + dest->word0 = cpu_to_be32(src->word0); + dest->erw = cpu_to_be32(src->erw); + dest->word2 = cpu_to_be64(src->word2); + dest->word4 = cpu_to_be32(src->word4); +} + IOInstEnding css_do_stsch(SubchDev *sch, SCHIB *schib) { int ret; @@ -1604,9 +1612,8 @@ static void copy_irb_to_guest(IRB *dest, const IRB *src, const PMCW *pmcw, copy_scsw_to_guest(&dest->scsw, &src->scsw); - for (i = 0; i < ARRAY_SIZE(dest->esw); i++) { - dest->esw[i] = cpu_to_be32(src->esw[i]); - } + copy_esw_to_guest(&dest->esw, &src->esw); + for (i = 0; i < ARRAY_SIZE(dest->ecw); i++) { dest->ecw[i] = cpu_to_be32(src->ecw[i]); } @@ -1655,9 +1662,9 @@ int css_do_tsch_get_irb(SubchDev *sch, IRB *target_irb, int *irb_len) SCSW_CSTAT_CHN_CTRL_CHK | SCSW_CSTAT_INTF_CTRL_CHK)) { irb.scsw.flags |= SCSW_FLAGS_MASK_ESWF; - irb.esw[0] = 0x04804000; + irb.esw.word0 = 0x04804000; } else { - irb.esw[0] = 0x00800000; + irb.esw.word0 = 0x00800000; } /* If a unit check is pending, copy sense data. */ if ((schib->scsw.dstat & SCSW_DSTAT_UNIT_CHECK) && @@ -1670,7 +1677,7 @@ int css_do_tsch_get_irb(SubchDev *sch, IRB *target_irb, int *irb_len) for (i = 0; i < ARRAY_SIZE(irb.ecw); i++) { irb.ecw[i] = be32_to_cpu(irb.ecw[i]); } - irb.esw[1] = 0x01000000 | (sizeof(sch->sense_data) << 8); + irb.esw.erw = ESW_ERW_SENSE | (sizeof(sch->sense_data) << 8); } } /* Store the irb to the guest. */ diff --git a/include/hw/s390x/ioinst.h b/include/hw/s390x/ioinst.h index c6737a30d447..3771fff9d44d 100644 --- a/include/hw/s390x/ioinst.h +++ b/include/hw/s390x/ioinst.h @@ -123,10 +123,20 @@ typedef struct SCHIB { uint8_t mda[4]; } QEMU_PACKED SCHIB; +/* format-0 extended-status word */ +typedef struct ESW { + uint32_t word0; /* subchannel logout for format 0 */ + uint32_t erw; + uint64_t word2; /* failing-storage address for format 0 */ + uint32_t word4; /* secondary-CCW address for format 0 */ +} QEMU_PACKED ESW; + +#define ESW_ERW_SENSE 0x01000000 + /* interruption response block */ typedef struct IRB { SCSW scsw; - uint32_t esw[5]; + ESW esw; uint32_t ecw[8]; uint32_t emw[8]; } IRB;