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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 2F91CCAC598 for ; Mon, 15 Sep 2025 09:53:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5ZaILaYfbJ8GDRoZ7gL3Tu9ugKxR1JKb/or6/5DZvqo=; b=OW7lY/OCiIHsihs24tQJWZ1wDn j8TrcH7u3/rYEXv8Bo8jJrv1HZWKusw5LTNGZsCNuXosh8j96XPqfXU7D6hUYC1SuDaB0d/dOYp4/ 8l9IXc3RmVKGsj5DqNcCiH1ip6CUN0MGAJIjo56zWgBh9uTkoIAuYEkKWaqgKkGtgb1QqUbZAg/xm 7icF2g5ODJzT/yN6BMulX9ofXJN+7ziRdXruFgDu8qOByzxRi8IkLwIbDW5dHpHGfVVjVz6VVRISz bhkcgbr2vY271eafcQIVXFcHdQNmctHNPs2j7Rsi8hPbazFmMnXh4IkUyEaie7jqPsAQe+GNcRlRP btfGGqqw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uy5tk-00000003XHo-2VaP; Mon, 15 Sep 2025 09:53:24 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uy5ti-00000003XHZ-39hR for linux-arm-kernel@lists.infradead.org; Mon, 15 Sep 2025 09:53:22 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 30DEC60195; Mon, 15 Sep 2025 09:53:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CE44EC4CEFD; Mon, 15 Sep 2025 09:53:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757930001; bh=VExY4NPjfZpQJf4u88T+AAZWTi12kWN4VPC1o7qUEXw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RES8IUpKVfB5x16IQm0LsH7FrmzAiJ9MaEDjeyYnhqxUaoFMiK0ThEZjsKxZKt74N aVk8YTlUo8EdOQn2ZYfbWndt+xwj5VNKDvkIcEr/KHFzLLTwaed5LbIRXNR9ycLMo2 kLdS2sRjlSo+57MYDpf4r7COwQwh9+Q43U2miybm581sJtWtn/AFo8IAP+25hbJnmR E5OFPVOWKgSuF/BCb6xXS1qGh8u9RG5F16/UvLYd64fjURUNuXfKLXS1bmdI52gxtw D1xoT8jaUZRp3fG5qZbSdMxkZyH2C6VXJJN6Bl0u9vhVuGh+LyX3de5uxujrFrMhTR HpI8L/uUnLLPw== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1uy5tf-00000006JZO-2xh4; Mon, 15 Sep 2025 09:53:19 +0000 From: Marc Zyngier To: Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , Sudeep Holla , Per Larsen Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, ahomescu@google.com, armellel@google.com, arve@android.com, ayrton@google.com, qperret@google.com, sebastianene@google.com, qwandor@google.com Subject: Re: [PATCH v11 0/6] KVM: arm64: Support FF-A 1.2 Date: Mon, 15 Sep 2025 10:53:15 +0100 Message-Id: <175792995612.521593.7894673693279210618.b4-ty@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250820-virtio-msg-ffa-v11-0-497ef43550a3@google.com> References: <20250820-virtio-msg-ffa-v11-0-497ef43550a3@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: oliver.upton@linux.dev, joey.gouly@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, catalin.marinas@arm.com, will@kernel.org, sudeep.holla@arm.com, perlarsen@google.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, ahomescu@google.com, armellel@google.com, arve@android.com, ayrton@google.com, qperret@google.com, sebastianene@google.com, qwandor@google.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 20 Aug 2025 01:10:04 +0000, Per Larsen wrote: > The FF-A 1.2 specification introduces a new SEND_DIRECT2 ABI which > allows registers x4-x17 to be used for the message payload. This patch > set prevents the host from using a lower FF-A version than what has > already been negotiated with the hypervisor. This is necessary because > the hypervisor does not have the necessary compatibility paths to > translate from the hypervisor FF-A version to a previous version. > > [...] Applied to next, thanks! [1/6] KVM: arm64: Correct return value on host version downgrade attempt commit: f414269392443f666bd8bef0cb3f0b53d5147be3 [2/6] KVM: arm64: Use SMCCC 1.2 for FF-A initialization and in host handler commit: 6f4c348b1d5c08f1105e645700962cc4353a8ac9 [3/6] KVM: arm64: Mark FFA_NOTIFICATION_* calls as unsupported commit: 79195f342417ff773048515964707aba3bfe0e41 [4/6] KVM: arm64: Mark optional FF-A 1.2 interfaces as unsupported commit: 8d24683e3e0f93b4bfdb558df50923514042817b [5/6] KVM: arm64: Mask response to FFA_FEATURE call commit: 3f5952917498e7bb9d227812d4349668f62c413b [6/6] KVM: arm64: Bump the supported version of FF-A to 1.2 commit: 162190f2ccdc5964efa2a26e9fc3e56cf80fc29b Cheers, M. -- Without deviation from the norm, progress is not possible.