From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:58283) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hJeJq-00036W-FU for qemu-devel@nongnu.org; Thu, 25 Apr 2019 09:21:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hJeJp-0003ae-Jc for qemu-devel@nongnu.org; Thu, 25 Apr 2019 09:21:42 -0400 From: Cornelia Huck Date: Thu, 25 Apr 2019 15:21:17 +0200 Message-Id: <20190425132134.2839-3-cohuck@redhat.com> In-Reply-To: <20190425132134.2839-1-cohuck@redhat.com> References: <20190425132134.2839-1-cohuck@redhat.com> Subject: [Qemu-devel] [PULL 02/19] s390-bios: decouple cio setup from virtio List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: qemu-s390x@nongnu.org, qemu-devel@nongnu.org, "Jason J. Herne" , Thomas Huth From: "Jason J. Herne" Move channel i/o setup code out to a separate function. This decouples cio setup from the virtio code path and allows us to make use of it for booting dasd devices. Signed-off-by: Jason J. Herne Acked-by: Halil Pasic Reviewed-by: Collin Walling Reviewed-by: Farhan Ali Reviewed-by: Thomas Huth Reviewed-by: Cornelia Huck Message-Id: <1554388475-18329-3-git-send-email-jjherne@linux.ibm.com> Signed-off-by: Thomas Huth --- pc-bios/s390-ccw/main.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c index 544851d672d8..e82fe2ce2315 100644 --- a/pc-bios/s390-ccw/main.c +++ b/pc-bios/s390-ccw/main.c @@ -99,6 +99,18 @@ static void menu_setup(void) } } +/* + * Initialize the channel I/O subsystem so we can talk to our ipl/boot device. + */ +static void css_setup(void) +{ + /* + * Unconditionally enable mss support. In every sane configuration this + * will succeed; and even if it doesn't, stsch_err() can handle it. + */ + enable_mss_facility(); +} + static void virtio_setup(void) { Schib schib; @@ -109,13 +121,6 @@ static void virtio_setup(void) VDev *vdev = virtio_get_device(); QemuIplParameters *early_qipl = (QemuIplParameters *)QIPL_ADDRESS; - /* - * We unconditionally enable mss support. In every sane configuration, - * this will succeed; and even if it doesn't, stsch_err() can deal - * with the consequences. - */ - enable_mss_facility(); - sclp_get_loadparm_ascii(loadparm_str); memcpy(ldp + 10, loadparm_str, LOADPARM_LEN); sclp_print(ldp); @@ -168,6 +173,7 @@ static void virtio_setup(void) int main(void) { sclp_setup(); + css_setup(); virtio_setup(); zipl_load(); /* no return */ -- 2.17.2 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 X-Spam-Level: X-Spam-Status: No, score=-6.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 0148AC004C9 for ; Thu, 25 Apr 2019 13:27:14 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 98F6A20B7C for ; Thu, 25 Apr 2019 13:26:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 98F6A20B7C 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 ([127.0.0.1]:57129 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hJeOC-0006bo-Uk for qemu-devel@archiver.kernel.org; Thu, 25 Apr 2019 09:26:13 -0400 Received: from eggs.gnu.org ([209.51.188.92]:58283) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hJeJq-00036W-FU for qemu-devel@nongnu.org; Thu, 25 Apr 2019 09:21:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hJeJp-0003ae-Jc for qemu-devel@nongnu.org; Thu, 25 Apr 2019 09:21:42 -0400 Received: from mx1.redhat.com ([209.132.183.28]:35576) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hJeJp-0003aL-ER; Thu, 25 Apr 2019 09:21:41 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9E1A886671; Thu, 25 Apr 2019 13:21:40 +0000 (UTC) Received: from localhost (dhcp-192-187.str.redhat.com [10.33.192.187]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 48282600C5; Thu, 25 Apr 2019 13:21:40 +0000 (UTC) From: Cornelia Huck To: Peter Maydell Date: Thu, 25 Apr 2019 15:21:17 +0200 Message-Id: <20190425132134.2839-3-cohuck@redhat.com> In-Reply-To: <20190425132134.2839-1-cohuck@redhat.com> References: <20190425132134.2839-1-cohuck@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Thu, 25 Apr 2019 13:21:40 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 02/19] s390-bios: decouple cio setup from virtio X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Jason J. Herne" , qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Thomas Huth Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="UTF-8" Message-ID: <20190425132117.o8vYvHcIc-j34t6FiSJFcPmZfzABg_Y3-_ZbiuOtxRY@z> From: "Jason J. Herne" Move channel i/o setup code out to a separate function. This decouples cio setup from the virtio code path and allows us to make use of it for booting dasd devices. Signed-off-by: Jason J. Herne Acked-by: Halil Pasic Reviewed-by: Collin Walling Reviewed-by: Farhan Ali Reviewed-by: Thomas Huth Reviewed-by: Cornelia Huck Message-Id: <1554388475-18329-3-git-send-email-jjherne@linux.ibm.com> Signed-off-by: Thomas Huth --- pc-bios/s390-ccw/main.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c index 544851d672d8..e82fe2ce2315 100644 --- a/pc-bios/s390-ccw/main.c +++ b/pc-bios/s390-ccw/main.c @@ -99,6 +99,18 @@ static void menu_setup(void) } } +/* + * Initialize the channel I/O subsystem so we can talk to our ipl/boot device. + */ +static void css_setup(void) +{ + /* + * Unconditionally enable mss support. In every sane configuration this + * will succeed; and even if it doesn't, stsch_err() can handle it. + */ + enable_mss_facility(); +} + static void virtio_setup(void) { Schib schib; @@ -109,13 +121,6 @@ static void virtio_setup(void) VDev *vdev = virtio_get_device(); QemuIplParameters *early_qipl = (QemuIplParameters *)QIPL_ADDRESS; - /* - * We unconditionally enable mss support. In every sane configuration, - * this will succeed; and even if it doesn't, stsch_err() can deal - * with the consequences. - */ - enable_mss_facility(); - sclp_get_loadparm_ascii(loadparm_str); memcpy(ldp + 10, loadparm_str, LOADPARM_LEN); sclp_print(ldp); @@ -168,6 +173,7 @@ static void virtio_setup(void) int main(void) { sclp_setup(); + css_setup(); virtio_setup(); zipl_load(); /* no return */ -- 2.17.2