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 ws5-mx01.kavi.com (ws5-mx01.kavi.com [34.193.7.191]) (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 C7F1DCDB465 for ; Thu, 19 Oct 2023 09:53:33 +0000 (UTC) Received: from lists.oasis-open.org (oasis.ws5.connectedcommunity.org [10.110.1.242]) by ws5-mx01.kavi.com (Postfix) with ESMTP id 22B75109D08 for ; Thu, 19 Oct 2023 09:53:33 +0000 (UTC) Received: from lists.oasis-open.org (oasis-open.org [10.110.1.242]) by lists.oasis-open.org (Postfix) with ESMTP id 088209868E0 for ; Thu, 19 Oct 2023 09:53:33 +0000 (UTC) Received: from host09.ws5.connectedcommunity.org (host09.ws5.connectedcommunity.org [10.110.1.97]) by lists.oasis-open.org (Postfix) with QMQP id E9C6F9868D9; Thu, 19 Oct 2023 09:53:32 +0000 (UTC) Mailing-List: contact virtio-comment-help@lists.oasis-open.org; run by ezmlm List-ID: Sender: Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: Received: from lists.oasis-open.org (oasis-open.org [10.110.1.242]) by lists.oasis-open.org (Postfix) with ESMTP id DADFF9868DA for ; Thu, 19 Oct 2023 09:53:32 +0000 (UTC) X-Virus-Scanned: amavisd-new at kavi.com X-MC-Unique: 3WUf6fxaMIyDpryxzEzmEA-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697709210; x=1698314010; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=VAhpKnxgzKPOy8lun1wRyGF3a7Woxaefb/iBAl6+KfU=; b=u8W5t4Viuf3WVw0/HDk+bGAv892EAKL+r/jPK5V1nKCChKtX6Tm3zgy84/fsISefKN g1Y14lJbrb8IU+AdBPYU9MbZo4FRmnQZbuDo/vlkZ/1NO6IjoKfUOYcKgcMs4BMqc5+t IbIpAIO45fXf3fdz2spiti9joMPZ2lbGF7Ty2NJ64XTRFCaE8g2uKP1LTg+vZUpBlygH K/jTswc4lnXxW/3iYCVesfjPseRlLv3BxzEtSpyKwWnRYoExZ69rvXV1MCQabPsdN/VT GMSqTipRYpzFArPR8C0DRgTeflrm5bl2MQrIWIWkHrkUAbsMobWjuppUnzdxLyJHM5Q3 xYAg== X-Gm-Message-State: AOJu0Ywx+jDokE3B+csJl/3WAUPqXifpK0Q57bl3GF6jT2iNQkmifhF6 Fnq5Z4PplO97sf58iAuTUnl7+nyQcFD0oOwhW0u9nfkWnP1mODHPnau6jZQXkKwxaqlLwb/o8AB nLfjYQPixx0vxtmRtBlmEck6qrOH9u57AOA== X-Received: by 2002:a05:6402:34d3:b0:53e:b8e2:1d58 with SMTP id w19-20020a05640234d300b0053eb8e21d58mr1203282edc.13.1697709209934; Thu, 19 Oct 2023 02:53:29 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEAC2irYnq3GZIExw2O4bN4pqs4vZz2U+WpPWMilCRPa9sHSahsLqXGw5ySbna3p9pLCNgBqw== X-Received: by 2002:a05:6402:34d3:b0:53e:b8e2:1d58 with SMTP id w19-20020a05640234d300b0053eb8e21d58mr1203263edc.13.1697709209584; Thu, 19 Oct 2023 02:53:29 -0700 (PDT) Date: Thu, 19 Oct 2023 05:53:23 -0400 From: "Michael S. Tsirkin" To: Parav Pandit Cc: Jason Wang , "Zhu, Lingshan" , "virtio-comment@lists.oasis-open.org" , "cohuck@redhat.com" , "sburla@marvell.com" , Shahaf Shuler , Maor Gottlieb , Yishai Hadas Message-ID: <20231019055251-mutt-send-email-mst@kernel.org> References: <20231019020413-mutt-send-email-mst@kernel.org> <20231019041629-mutt-send-email-mst@kernel.org> <20231019050553-mutt-send-email-mst@kernel.org> <20231019052328-mutt-send-email-mst@kernel.org> <20231019052725-mutt-send-email-mst@kernel.org> MIME-Version: 1.0 In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Subject: Re: [virtio-comment] [PATCH v1 1/8] admin: Add theory of operation for device migration On Thu, Oct 19, 2023 at 09:41:46AM +0000, Parav Pandit wrote: > > > From: Michael S. Tsirkin > > Sent: Thursday, October 19, 2023 3:03 PM > > > > > With a capability you can discover it without poking at features. > > > > > > > > > It is discouraged by pci spec. > > > > Pci caps for mostly doing very small init time sort of config. > > > > Not to run frequent commands. > > > > > > Interesting. where in the spec exactly? > > > > And the reason I ask is because I'd like to understand the exact limitation. > > > > In any case, we should still maybe look for ways to separate it from config. > > Maybe a capability points at a BAR and that is where we have this stuff? > > > Yes, I replied in your previous email, a similar suggestion. > Lets first agree that it is drafted for non-passthrough mode. I could see passthrough use it too if there, why not. -- MST This publicly archived list offers a means to provide input to the OASIS Virtual I/O Device (VIRTIO) TC. 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