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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5FF0CC433FE for ; Wed, 16 Nov 2022 17:07:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238470AbiKPRHl (ORCPT ); Wed, 16 Nov 2022 12:07:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233296AbiKPRHL (ORCPT ); Wed, 16 Nov 2022 12:07:11 -0500 Received: from mail-ej1-x635.google.com (mail-ej1-x635.google.com [IPv6:2a00:1450:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC3D258024 for ; Wed, 16 Nov 2022 09:06:50 -0800 (PST) Received: by mail-ej1-x635.google.com with SMTP id k2so45686261ejr.2 for ; Wed, 16 Nov 2022 09:06:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=ntvWgXmyJ+ykqZ+C7I8wJwNPUjVuwRNNvjO3LgHYeZQ=; b=ijm23BXVpC91ubga8PZXme39BcIbxyQVTExxRKXLSvZDwSo1X0uMeKsr7Af4VNMN5F 3NheMhsqE43RygVDM/jqGXonihzTc9MNVlqK3YiBbqPGVwkBhqeJxKrh3IDLPdbivdbI 5UF69y2Xsi16bX6JXRDlIbeGzG+NFKuoa1rTjK5uI3yc98PJ8r/C7knt4fsZiZaPbBEu C+nUdfI+n3I89DEqDmtzg89PBhJJuF2Dzei+N7FTHK2b76i7PNqem+0Dv9w4cD2XuUjs tPnFZNspYuymVCs3upZV9M8kNEsHnbByVfWFQGI1a07rLlebliWtUZeAmqqUJl7ny9QT lKgA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=ntvWgXmyJ+ykqZ+C7I8wJwNPUjVuwRNNvjO3LgHYeZQ=; b=M1KbD+cJoawtZ76tFMiNbkBbl1PNZraFLeanpG8YQSwTsGIXdV4fDPHtzcVY2LHd0l PmJi09f7LPoFxrMwsOMzaBch9JWUoFwJzznC0UJRYvid7CtxuegB2jAcWiIuVIww7Ht/ 7tjVkotonFC6XwtD2v+JuFIL3tfNPKbta+qL7DZERFoIhkmLPZ9yPMhaPo6xsTAvk86i Q0mgCRbewKCmVGZpS2fhMsdTnD2Dw92dExnGXVT7cGb78D/GlXOHDvonKuNHQIfVOe6p HFwvk5Rfb95TjcNqqiXSnuI7rWpQvUDe6Gp4g0kt7XxCQvJW3Vk0DRi/YAw0N4RYLcsA 1eHg== X-Gm-Message-State: ANoB5pkjlOC4LG5fCMSmHFrHvm72tQpvecl5MoynHVWz1ywstWhWX87F iy9ZKELd3ixabhWjB8fqSUv0pg== X-Google-Smtp-Source: AA0mqf7OUgDhaAkgf87o1aEoAM3GV5pr2cWK1jkNVYywr1xdXN9du8Ug6c89/kiZd1oJFyyfqrOXQw== X-Received: by 2002:a17:906:a2d4:b0:7ac:db70:2f90 with SMTP id by20-20020a170906a2d400b007acdb702f90mr18116893ejb.297.1668618409178; Wed, 16 Nov 2022 09:06:49 -0800 (PST) Received: from google.com (64.227.90.34.bc.googleusercontent.com. [34.90.227.64]) by smtp.gmail.com with ESMTPSA id r18-20020a1709061bb200b0077d37a5d401sm7115248ejg.33.2022.11.16.09.06.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Nov 2022 09:06:48 -0800 (PST) Date: Wed, 16 Nov 2022 17:06:44 +0000 From: Quentin Perret To: Marc Zyngier , James Morse , Alexandru Elisei , Suzuki K Poulose , Oliver Upton , Catalin Marinas , Will Deacon , Sudeep Holla , Andrew Walbran Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, kernel-team@android.com Subject: Re: [PATCH 12/12] ANDROID: KVM: arm64: pkvm: Add support for fragmented FF-A descriptors Message-ID: References: <20221116170335.2341003-1-qperret@google.com> <20221116170335.2341003-13-qperret@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221116170335.2341003-13-qperret@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 16 Nov 2022 at 17:03:35 (+0000), Quentin Perret wrote: > FF-A memory descriptors may need to be sent in fragments when they don't > fit in the mailboxes. Doing so involves using the FRAG_TX and FRAG_RX > primitives defined in the FF-A protocol. > > Add support in the pKVM FF-A relayer for fragmented descriptors by > monitoring outgoing FRAG_TX transactions and by buffering large > descriptors on the reclaim path. And it seems that I have forgotten to remove the ANDROID: tag from this patch prior to posting ... Please ignore, it'll be gone in v2. Cheers, Quentin