From nobody Wed Nov 27 04:33:19 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=suse.de ARC-Seal: i=1; a=rsa-sha256; t=1701116985; cv=none; d=zohomail.com; s=zohoarc; b=LxwPJBzOetZAA6l96W+VOgJeML6mjeMAlMwob9cQo5PIT5mMcZFy63uaH+E+dnMPkjorSnW36/4ANpQWWwHOe7FXKPF1viGp+xmAdwh0tggUjoRV8ASQYYoJEO1kySxq6PakzPr3SOoer2iAeqPvgPCWE54LyP7UCUlCSADC0BE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1701116985; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=Ka60Ny7VzSASvob+/kR6dtngsegYM7LZ1xk+kD+azpo=; b=cj+hmVbbxKOioIr36Ffk3GvEwUnLkVOf9TpHfN6YWWPWksgnTSPmZIEvhYMZUFDlZZh9JDgnviou6UuvAk/AzSe80FPjkZu6PHutCQm9rOOt4ziuSKWac04HCvLz+Hf1FpXSU501Yp7Wkf0xWLzNrwA7u57Uj635oGAF3ebJevU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1701116985272287.85638193229863; Mon, 27 Nov 2023 12:29:45 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r7iBr-0002Vq-P9; Mon, 27 Nov 2023 15:26:47 -0500 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 1r7iBk-0002TP-0A for qemu-devel@nongnu.org; Mon, 27 Nov 2023 15:26:40 -0500 Received: from smtp-out2.suse.de ([195.135.223.131]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1r7iBh-0002kg-IM for qemu-devel@nongnu.org; Mon, 27 Nov 2023 15:26:38 -0500 Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id E45101FB54; Mon, 27 Nov 2023 20:26:35 +0000 (UTC) Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id CF8541379A; Mon, 27 Nov 2023 20:26:33 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap1.dmz-prg2.suse.org with ESMTPSA id SPUGJXn7ZGVfIQAAD6G6ig (envelope-from ); Mon, 27 Nov 2023 20:26:33 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1701116795; h=from:from:reply-to: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=Ka60Ny7VzSASvob+/kR6dtngsegYM7LZ1xk+kD+azpo=; b=w4IbmlLfcIs82i+6RzE2AOPmQYhQz1dKPnRCGTMuyNWN/qnIye8suskCYpuREQcVOz1NFe V2AXYzbwmZn7w1lhqBlGeKF4KUN+EKM6BKdr0WMqAdcoKv8B3SZqMlFNjmf2/U88Tgt1u8 Z3ZV/n32uehyTXuS018ykPGGn4a6RNA= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1701116795; h=from:from:reply-to: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=Ka60Ny7VzSASvob+/kR6dtngsegYM7LZ1xk+kD+azpo=; b=rHjMVFDMEzk5bJVQkdUrN5VhqP5FPrPAF5NQYtcNFPJpE3STOPNIYHWNBcGYvR3PeNhMFF AxyL2GSvI4SoCwAw== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: berrange@redhat.com, armbru@redhat.com, Juan Quintela , Peter Xu , Leonardo Bras , Claudio Fontana Subject: [RFC PATCH v3 07/30] migration: Add fixed-ram URI compatibility check Date: Mon, 27 Nov 2023 17:25:49 -0300 Message-Id: <20231127202612.23012-8-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20231127202612.23012-1-farosas@suse.de> References: <20231127202612.23012-1-farosas@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Authentication-Results: smtp-out2.suse.de; none X-Spam-Score: -2.98 X-Spamd-Result: default: False [-2.98 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RCPT_COUNT_SEVEN(0.00)[7]; MID_CONTAINS_FROM(1.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-2.88)[99.47%] Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=195.135.223.131; envelope-from=farosas@suse.de; helo=smtp-out2.suse.de 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @suse.de) X-ZM-MESSAGEID: 1701116986451000003 The fixed-ram migration format needs a channel that supports seeking to be able to write each page to an arbitrary offset in the migration stream. Signed-off-by: Fabiano Rosas Reviewed-by: Daniel P. Berrang=C3=A9 --- - avoided overwriting errp in compatibility check --- migration/migration.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/migration/migration.c b/migration/migration.c index 28a34c9068..897ed1db67 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -135,10 +135,26 @@ static bool transport_supports_multi_channels(SocketA= ddress *saddr) saddr->type =3D=3D SOCKET_ADDRESS_TYPE_VSOCK; } =20 +static bool migration_needs_seekable_channel(void) +{ + return migrate_fixed_ram(); +} + +static bool transport_supports_seeking(MigrationAddress *addr) +{ + return addr->transport =3D=3D MIGRATION_ADDRESS_TYPE_FILE; +} + static bool migration_channels_and_transport_compatible(MigrationAddress *addr, Error **errp) { + if (migration_needs_seekable_channel() && + !transport_supports_seeking(addr)) { + error_setg(errp, "Migration requires seekable transport (e.g. file= )"); + return false; + } + if (migration_needs_multiple_sockets() && (addr->transport =3D=3D MIGRATION_ADDRESS_TYPE_SOCKET) && !transport_supports_multi_channels(&addr->u.socket)) { --=20 2.35.3