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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 44F08C83F0A for ; Wed, 9 Jul 2025 08:36:37 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uZQGd-0005If-AR; Wed, 09 Jul 2025 04:35:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uZQGb-0005D6-Hc for qemu-devel@nongnu.org; Wed, 09 Jul 2025 04:35:01 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uZQGZ-0007l4-KM for qemu-devel@nongnu.org; Wed, 09 Jul 2025 04:35:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1752050098; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+Pa/Q8RWLwnchAPhKlcSo7LEhW6Ix9c7AUvXBgQeiIk=; b=UXLtnOg9HjkLmbOd7hPBpp4wIvwszbU1Pxd49FAEIfOG0R8ThwYofgCGtzHFcy40I7T3Vw RUCxS0YVx8EwJ4IBi/PLNoWsfRYR5CO8ygCGN4ELChJXYgFjLcP/EeNU/z2DFKId6ZZyvg zsNfzn8tp6DElDzFIPqVy4H7ufdJW6I= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-251-CQQfrXV8NGKynm9CMMem0g-1; Wed, 09 Jul 2025 04:34:55 -0400 X-MC-Unique: CQQfrXV8NGKynm9CMMem0g-1 X-Mimecast-MFC-AGG-ID: CQQfrXV8NGKynm9CMMem0g_1752050093 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 8B49A18DA5C7; Wed, 9 Jul 2025 08:34:53 +0000 (UTC) Received: from thuth-p1g4.redhat.com (unknown [10.44.32.92]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 54AE218002B3; Wed, 9 Jul 2025 08:34:49 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Jared Rossi , Zhuoying Cai Cc: qemu-s390x@nongnu.org, Christian Borntraeger , Eric Farman , Halil Pasic , Matthew Rosato Subject: [PATCH v2 1/5] pc-bios/s390-ccw: Allow to select a different pxelinux.cfg entry via loadparm Date: Wed, 9 Jul 2025 10:34:39 +0200 Message-ID: <20250709083443.41574-2-thuth@redhat.com> In-Reply-To: <20250709083443.41574-1-thuth@redhat.com> References: <20250709083443.41574-1-thuth@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Thomas Huth Since we're linking the network booting code into the main firmware binary nowadays, we can support the "loadparm" parameter now quite easily for pxelinux.cfg config files that contain multiple entries. Signed-off-by: Thomas Huth --- pc-bios/s390-ccw/netmain.c | 32 ++++++++++++++++++++++++-------- 1 file changed, 24 insertions(+), 8 deletions(-) diff --git a/pc-bios/s390-ccw/netmain.c b/pc-bios/s390-ccw/netmain.c index 719a547ada0..c0aafca22d2 100644 --- a/pc-bios/s390-ccw/netmain.c +++ b/pc-bios/s390-ccw/netmain.c @@ -332,6 +332,27 @@ static int load_kernel_with_initrd(filename_ip_t *fn_ip, return rc; } +static int net_select_and_load_kernel(filename_ip_t *fn_ip, + int num_ent, int selected, + struct pl_cfg_entry *entries) +{ + unsigned int loadparm = get_loadparm_index(); + + if (num_ent <= 0) { + return -1; + } + + IPL_assert(loadparm <= num_ent, + "loadparm is set to an entry that is not available in the " + "pxelinux.cfg file!"); + + if (loadparm > 0) { + selected = loadparm - 1; + } + + return load_kernel_with_initrd(fn_ip, &entries[selected]); +} + #define MAX_PXELINUX_ENTRIES 16 static int net_try_pxelinux_cfg(filename_ip_t *fn_ip) @@ -343,11 +364,8 @@ static int net_try_pxelinux_cfg(filename_ip_t *fn_ip) DEFAULT_TFTP_RETRIES, cfgbuf, sizeof(cfgbuf), entries, MAX_PXELINUX_ENTRIES, &def_ent); - if (num_ent > 0) { - return load_kernel_with_initrd(fn_ip, &entries[def_ent]); - } - return -1; + return net_select_and_load_kernel(fn_ip, num_ent, def_ent, entries); } /** @@ -433,10 +451,8 @@ static int net_try_direct_tftp_load(filename_ip_t *fn_ip) num_ent = pxelinux_parse_cfg(cfgbuf, sizeof(cfgbuf), entries, MAX_PXELINUX_ENTRIES, &def_ent); - if (num_ent <= 0) { - return -1; - } - return load_kernel_with_initrd(fn_ip, &entries[def_ent]); + return net_select_and_load_kernel(fn_ip, num_ent, def_ent, + entries); } } -- 2.50.0