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 8A1EACCF9FE for ; Thu, 30 Oct 2025 15:49:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To: Content-Transfer-Encoding:Content-Type:MIME-Version:Message-Id:Date:Subject: From:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=+D8anVFuGoYzgZb/9BM5CA5vDzeQQvLAvu+Dom128Io=; b=PukqVtxCrsle45xYPkcqaPT3xB XlfTK7HRdaV4dM50/O5XDml0ilGvFEwVMF1mSX35kHjwJjD272QUeBx+niN9Qt1SmT0vZfeGG842X iM2ZjKB2ji7O9FCEdTzUEOSkCxfkcCHRIvfMQ5oAwYCtLMadu1swY/QiyKazq2Hx84jhULabB5E8t ksnZIbh+7PC78BqKf7BtYx23I7AoeTA5YdPJ7sZwYfUJ0TVL0T9SPpkNgArxeawOm4eK3B5psr6I1 8OyYVz5EDJMETnomLN4KUXliC4nyn2kma3sfNgr0ie0cXc0UUv5pot6EqQ7S7BCKm93et+nkU48pU YO9B3zng==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vEUtz-00000004PmT-3ELE; Thu, 30 Oct 2025 15:49:27 +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 1vEUty-00000004Pm6-2Yzu for linux-arm-kernel@lists.infradead.org; Thu, 30 Oct 2025 15:49:26 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 0ADA9611CB; Thu, 30 Oct 2025 15:49:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id A5E67C4CEF8; Thu, 30 Oct 2025 15:49:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761839365; bh=8s1gw4zxVz4gFDdlU/JyqSmtBI+GywyPiSCpoHCeD+A=; h=From:Subject:Date:To:Cc:Reply-To:From; b=rItTgC//OUg6UGbkjCfoDruFY6dB92CLVOIbktYOV5ydZMLmIH3uwEO1mRcm8ooUY bEqlVIKZHHigKgnZ0NfBj465wditDbSJG7IpivPF8P3QElGYnZAcxG9AoHeoyq8j5v NgPAb7h5OzZVEgk0kx8NxkwMfjQtACPR6tnGnFib1GGLcDrtMLf9vOoLm8YDHNLuVR S1KJPH5D9V3Ern4vkc1I5MNgbMgjcj4y9HFific729i3yJ1zpAWufq1QneN/EeWwm4 CQMeMjRgzn5m6vAQcOr2+Y0rfJscKmD/nl/HvoVXX7owgoMludpJALMfGLQay7a/8s q3BJKDeqT75lw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98697CCF9F8; Thu, 30 Oct 2025 15:49:25 +0000 (UTC) From: Per Larsen via B4 Relay Subject: [PATCH v2 0/2] KVM: arm64: Support FF-A direct messaging interfaces Date: Thu, 30 Oct 2025 15:49:15 +0000 Message-Id: <20251030-host-direct-messages-v2-0-9f27cef36730@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAPuIA2kC/22NQQ6CMBBFr0Jm7Zi2WEFX3sOwwHYokwglHUI0h LtbiUuX7yX//RWEEpPAtVgh0cLCccxgDgW4vh0DIfvMYJSxWpkL9lFm9JzIzTiQSBtI0BqlfdV Z2z485OmUqOPXnr03mXuWOab3/rLor/0FS/U/uGhUeDqXZKu60q7ubiHG8KSjiwM027Z9AFX+C wa5AAAA X-Change-ID: 20251029-host-direct-messages-5201d7f55abd To: Marc Zyngier , Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , Yeoreum Yun , Ben Horgan Cc: Armelle Laine , Sebastien Ene , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, Per Larsen X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1761839364; l=1188; i=perlarsen@google.com; s=20250508; h=from:subject:message-id; bh=8s1gw4zxVz4gFDdlU/JyqSmtBI+GywyPiSCpoHCeD+A=; b=9LSJoD3lZA0ogsX7LA0xU+vNMbRxY6n7pTFWh3e/JFxXdDlXTr4KtfUhi61CMD8w5FrWi1l4E vmPTjkBVwR0B0wYyH1/mV+O0LauiIy68LWToplSP+/9mmOsGl6fa4Jk X-Developer-Key: i=perlarsen@google.com; a=ed25519; pk=jjc/Ta4VmrLRmMoahP6d1mBcKzvWU+nsmdtYe2oS2kQ= X-Endpoint-Received: by B4 Relay for perlarsen@google.com/20250508 with auth_id=402 X-Original-From: Per Larsen 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: , Reply-To: perlarsen@google.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Support FFA_MSG_SEND_DIRECT_REQ unconditionally. Support FFA_MSG_SEND_DIRECT_REQ2 if hypervisor negotiated version 1.2+. The second patch was part of a previous patch set [0] but was dropped since the use case was unclear. A clear use case has now appeared [1]. Tested by booting Android under QEMU. Best Regards, Per [0]: https://lore.kernel.org/all/20250730-virtio-msg-ffa-v9-0-7f1b55c8d149@google.com/ [1]: https://lore.kernel.org/all/20251027191729.1704744-1-yeoreum.yun@arm.com/ Signed-off-by: Per Larsen --- Changes in v2: - 1/2: Drop support for FFA_ID_GET interface in host handler. - Link to v1: https://lore.kernel.org/r/20251030-host-direct-messages-v1-0-463e57871c8f@google.com --- Per Larsen (1): KVM: arm64: Support FFA_MSG_SEND_DIRECT_REQ2 in host handler Sebastian Ene (1): KVM: arm64: Support FFA_MSG_SEND_DIRECT_REQ in host handler arch/arm64/kvm/hyp/nvhe/ffa.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) --- base-commit: e53642b87a4f4b03a8d7e5f8507fc3cd0c595ea6 change-id: 20251029-host-direct-messages-5201d7f55abd Best regards, -- Per Larsen