From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F04D2FA0DE; Mon, 15 Sep 2025 09:53:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757930002; cv=none; b=o9iZPmRu4G97UMb2ycr9EQrMq9jCt5Yutb7q0iE8YqERicQTR24OyxRy1pZ+R4Fy5wepYLSkc2hFZFO1plCGXy33p90fNcRnaSYebT710W49NBpWI5zRCjKEpJn9GMnKS61lcE16D60mXhbUM9JnPh2kDWVAzyvsTJBPy3SiFIc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757930002; c=relaxed/simple; bh=VExY4NPjfZpQJf4u88T+AAZWTi12kWN4VPC1o7qUEXw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=PRP+oXdadfqwhsn53J6kpAzXwuDbIVmmnNXIrGH072Mu9xQHM53X1LXn33LsGrYVBtTSgScociLo/aAWdVZsVGhOuO/Of/5xhEWBZeE4prv2DOTGSqTxA/Jm6ASLYKjPNeDTJESNiydt0aIxjHGQYXLQ4n76XZo+wfTHlgpe9B8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RES8IUpK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RES8IUpK" 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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.