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 7D279C4345F for ; Sat, 27 Apr 2024 07:28:15 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s0cTQ-00032j-2Y; Sat, 27 Apr 2024 03:27:52 -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 1s0cTN-00032U-Fv for qemu-devel@nongnu.org; Sat, 27 Apr 2024 03:27:50 -0400 Received: from mail-ot1-x333.google.com ([2607:f8b0:4864:20::333]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1s0cTD-0006El-5j for qemu-devel@nongnu.org; Sat, 27 Apr 2024 03:27:40 -0400 Received: by mail-ot1-x333.google.com with SMTP id 46e09a7af769-6eb658ca1ceso2077538a34.2 for ; Sat, 27 Apr 2024 00:27:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=daynix-com.20230601.gappssmtp.com; s=20230601; t=1714202858; x=1714807658; darn=nongnu.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=5LRrKLDHx8VtTDLL6dBug/YSiX5Rr4VjwdESRVOVz8E=; b=CxkvrZzVq8zfExpE2RngY4yvA4ax/R6VsLp77lNjK46Refjq1ng+c1HCb2XxwJcu+/ BpNs9k0wdhyOCL1rerPB8iAJkxyYAv1OouXJybJQ+BtiQFVpqrplW25oAzV/JcAplh+l zo+vlBXaE06gzNMI+uoRc+ujU2BfqqoS+dgFmbRb7Y7SMh07MGRVjAAS5jiJ/9fkFj5M rZeICDf8wRgC+idGqEzb2DNctCGOXDZ7SBCOHIs0VzmSnx4cZnaDY7K9EGyyqA/5FgyA anDH+PdKMj0DqrtGUsOBAgM7e2Rf6EhpYDYWrfKp3F0z0Al+QeLR87tbKJB9uVc7gRJg 0Lgw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714202858; x=1714807658; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=5LRrKLDHx8VtTDLL6dBug/YSiX5Rr4VjwdESRVOVz8E=; b=wTj+gHFplexthg9THubqyAJmitgwxErpSRxzvbMLyUQEm9bscM5sAhA6i/LWQrhMw/ 20h9Lf+GxocC6uMX1aUhCSPtHI1VXWJALtYOtLatthE6fpFHb4kCoKxglsd/WqanGjug Dzt9eY7ekkWouaoC/on/JkWelebkTjyl77nmJwOcjTD1ayKWefZ0js8Gi2sI3LUiemsw GbOB020zNakE3NKyvSyISHcc8JOoT4JdaQZC2oGw4Rm1yjEr8zi3q657qR0lc8tCLGue 0kT60SAcABVAupVSVyA86noDKJqcQIWA1g3yRO+4YosF5/ZonkTNYYPyj4vn8EhoCwIq 7wYQ== X-Gm-Message-State: AOJu0YyQnL/3kWbvj1mKuFu6S2xnNUmdogRnvzoolXrFrvngP5qbHRLh 4GyZ1GoWVdBNCOFjEy6o2bS6mWz/Vfos4+XhxoXqMqhUZe/cSRMfyTynCydn9yM= X-Google-Smtp-Source: AGHT+IHKEeM4mG6PSgGm7m1mzKSw8F8A5zfB2Z1z55LnsJpBcwlMkm85rZ5Y2o+cut+lLbFVDd5jIQ== X-Received: by 2002:a54:4e8e:0:b0:3c7:85f:7f22 with SMTP id c14-20020a544e8e000000b003c7085f7f22mr1904636oiy.30.1714202857706; Sat, 27 Apr 2024 00:27:37 -0700 (PDT) Received: from [157.82.202.162] ([157.82.202.162]) by smtp.gmail.com with ESMTPSA id 17-20020a056a00073100b006eadc87233dsm15861771pfm.165.2024.04.27.00.27.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 27 Apr 2024 00:27:37 -0700 (PDT) Message-ID: Date: Sat, 27 Apr 2024 16:27:31 +0900 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v9 11/11] migration/virtio: Add virtio-gpu section Content-Language: en-US To: Dmitry Osipenko , Huang Rui , =?UTF-8?Q?Marc-Andr=C3=A9_Lureau?= , =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= , Gerd Hoffmann , "Michael S . Tsirkin" , Stefano Stabellini , Anthony PERARD , Antonio Caggiano , "Dr . David Alan Gilbert" , Robert Beckett , Gert Wollny , =?UTF-8?Q?Alex_Benn=C3=A9e?= Cc: qemu-devel@nongnu.org, Gurchetan Singh , ernunes@redhat.com, Alyssa Ross , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= , Alex Deucher , Stefano Stabellini , =?UTF-8?Q?Christian_K=C3=B6nig?= , Xenia Ragiadakou , Pierre-Eric Pelloux-Prayer , Honglei Huang , Julia Zhang , Chen Jiqian , Yiwei Zhang References: <20240425154539.2680550-1-dmitry.osipenko@collabora.com> <20240425154539.2680550-12-dmitry.osipenko@collabora.com> From: Akihiko Odaki In-Reply-To: <20240425154539.2680550-12-dmitry.osipenko@collabora.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: none client-ip=2607:f8b0:4864:20::333; envelope-from=akihiko.odaki@daynix.com; helo=mail-ot1-x333.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=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 On 2024/04/26 0:45, Dmitry Osipenko wrote: > Document virtio-gpu migration specifics. > > Suggested-by: Akihiko Odaki > Signed-off-by: Dmitry Osipenko > --- > docs/devel/migration/virtio.rst | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/docs/devel/migration/virtio.rst b/docs/devel/migration/virtio.rst > index 611a18b82151..67f5fcfed196 100644 > --- a/docs/devel/migration/virtio.rst > +++ b/docs/devel/migration/virtio.rst > @@ -113,3 +113,10 @@ virtio_load() returned (like e.g. code depending on features). > Any extension of the state being migrated should be done in subsections > added to the core for compatibility reasons. If transport or device specific > state is added, core needs to invoke a callback from the new subsection. > + > +VirtIO-GPU migration > +==================== > +VirtIO-GPU doesn't adhere to a common virtio migration scheme. It doesn't > +support save/loading of virtio device state, instead it uses generic device > +migration management on top of the virtio core to save/load GPU state. > +Migration of virgl and rutabaga states not supported. Sorry for confusion, but I didn't mean to add a subsection to the documentation. I intended to refer to a terminology of migration data structure named subsection, which is documented at: docs/devel/migration/main.rst A device-specific information is not worth to describe here.