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 D8283C87FDA for ; Fri, 8 Aug 2025 12:55:12 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=RcOspRrvRv34l0RIdRro9uMbAPmtUQwp1m1TAhCOtQA=; b=RWdymSF3pMpLR+TsOJcRSsoBrG 8LtkgOs9Vg+WjA9ooxcHR25e8YE7BQbMY4m1fM0Hcg9C0Fn1TvFdYVfY94H2RijQ0sedZ8vQG8MaF 2fYEE0RstILEMU2ldlgwand+oboacn+cbWMrZVM7aalR3KWnuVtOs6v1kN4hhZBHokPgE1tF6ELrX Vc0zU6vvJb/tJfsbwGGUVKKIN3MstE68vGxM7Zxifqgm72FjlJIhns279+H14SOp2hxPX6Fne1S9i 08E20BqQSI0BkM/0ziFRRmCrId5ijf40fjai/LGR1ZMLj5ddrwKoixhpNGSjg0+w5smGizU5ZQXaV 91XjgCBQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1ukMcl-00000002qoj-1b8y; Fri, 08 Aug 2025 12:55:07 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ukMPS-00000002pUB-2CYr for linux-arm-kernel@lists.infradead.org; Fri, 08 Aug 2025 12:41:23 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 958FCA55E2F; Fri, 8 Aug 2025 12:41:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2220EC4CEF4; Fri, 8 Aug 2025 12:41:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754656881; bh=zlgu9JSVlseeLyVrq6HQ3TQhoDjjj/5JeROwbBJkVLo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=GxSs+j5ft/UKaggtneb1Y+z4+vN3e+LSz3cz+zbyVrW5boZXsOxE+cbnxfX3HQwT8 7PH6nay715b1YnyU66BVfb4FXTAf39zoaj/CmtElLTUmgzMdqRxmtUx7hXZI+nMdTp iu4eMTQDTGR6ZMHSfMx7RFwGKeH84QQPfEXKnNnLPTvUWnhijvSsLDTXX/yf2lFy2y agqiFdLEJWZC21Q84CdXd7ebBcWrNJpH5NazkrF7ca0DJeEYZX0m+CsIqUOTJkM6AI jVsWYUw7BMmc7giBmlVy7AWxXBDM9ssqvVzAPbzsDUyzIzZ3a1LlSFxz0l0xwjg9+e 0V5esqtG6Balg== Date: Fri, 8 Aug 2025 13:41:14 +0100 From: Will Deacon To: perlarsen@google.com Cc: Marc Zyngier , Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Sudeep Holla , 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 v9 4/6] KVM: arm64: Mark optional FF-A 1.2 interfaces as unsupported Message-ID: References: <20250730-virtio-msg-ffa-v9-0-7f1b55c8d149@google.com> <20250730-virtio-msg-ffa-v9-4-7f1b55c8d149@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250730-virtio-msg-ffa-v9-4-7f1b55c8d149@google.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250808_054122_626113_FF60D106 X-CRM114-Status: GOOD ( 13.86 ) 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, Jul 30, 2025 at 09:15:07PM +0000, Per Larsen via B4 Relay wrote: > From: Per Larsen > > Mark FF-A 1.2 interfaces as unsupported lest they get proxied. Also mark > FFA_EL3_INTR_HANDLE as unsupported as it is only valid for physical > instances. > > Signed-off-by: Per Larsen > --- > arch/arm64/kvm/hyp/nvhe/ffa.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c > index 48183fa78014e420372c4fb5e489519bc652bf53..7fe96fe626d630a9009551e8dec1683617acafbd 100644 > --- a/arch/arm64/kvm/hyp/nvhe/ffa.c > +++ b/arch/arm64/kvm/hyp/nvhe/ffa.c > @@ -674,6 +674,13 @@ static bool ffa_call_supported(u64 func_id) > case FFA_NOTIFICATION_SET: > case FFA_NOTIFICATION_GET: > case FFA_NOTIFICATION_INFO_GET: > + /* Optional interfaces added in FF-A 1.2 */ > + case FFA_MSG_SEND_DIRECT_REQ2: /* Optional per 7.5.1 */ > + case FFA_MSG_SEND_DIRECT_RESP2: /* Optional per 7.5.1 */ > + case FFA_CONSOLE_LOG: /* Optional per 13.1: not in Table 13.1 */ > + case FFA_PARTITION_INFO_GET_REGS: /* Optional for virtual instances per 13.1 */ > + /* Unsupported interfaces added in FF-A 1.2 */ > + case FFA_EL3_INTR_HANDLE: /* Only valid for secure physical instances */ Shouldn't the secure side be rejecting that one for us, then? > return false; > } Regardless, Acked-by: Will Deacon Will