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 88023C61DD6 for ; Wed, 2 Sep 2026 15:34:08 +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:Message-ID:References:In-Reply-To:Subject:CC:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=xWRL/71/13sRML0I9ovZkoTukFA4K4ZgczCX4kTAUHM=; b=YjX/mXyVz35iDUe2U7muoeB5MY ix5p/oRU0sFkl5uVdRtdwZtEcmH75Q3xWMYIuLc6tsvZG9lDQ/UpN1OlBRvc++OscJrDVNvt35yNw 6FcZ8CcHQJetqByO/f+uSGTirM0GFXvbTQT03m+F8tPaa8BI6laxotxVIOry2RbcdZa7priQ29/tK hI/qpb9LjSaCpf6XgvDWBDvVtc4Hj/eCczYJ88tMXH2RC7+l+AicrAas2bqAfEfR+c9CjtwnLbiQC CnUxhPj+FGLCFDLxa9KAEK3Mt8ahbG+rSU6Qq2ad0fap3E+RpGidhpfF9b5ILP1KvsshmMHf+rnum /re1Tmpg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x1myL-0000000F66L-2pnh; Wed, 02 Sep 2026 15:33:57 +0000 Received: from mail.mainlining.org ([5.75.144.95]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x1myI-0000000F65S-1q1l for linux-arm-kernel@lists.infradead.org; Wed, 02 Sep 2026 15:33:55 +0000 DKIM-Signature: v=1; a=rsa-sha256; s=202507r; d=mainlining.org; c=relaxed/relaxed; h=Message-ID:Subject:To:From:Date; t=1788363226; bh=xWRL/71/13sRML0I9ovZkoT ukFA4K4ZgczCX4kTAUHM=; b=rbKPC77vUfF7kgqDP0bQ14Yyc50qS9IY5FDi29X2YtCxerVmb6 OhszGvV0m1cDuCQiQEy7lbLxI3P30Rz3eJVlcr7oKMyM3LHLZfpfhu5kS7w3NqX8Q5n+zAyomZ2 evENZxMjHV8FfHIZyuxdP7ZJng70CSqDzQYPcyjpeddoWBqmCy9lf/tZCps8rcg7wGLEDpGfGZf HOc9CD+tvsN++LZIPapo0gyuiBBWY7FSQww1XvfwH4L+iVdYc5olR5pMGSgu6Vx0xRwsnYNHFbv 6k+Me0xHxc/L7okxSzNGuuHmJwOU9cpz7EnUw0tE03gEhekJ57LHTz0n1oj6KbdUvfQ==; DKIM-Signature: v=1; a=ed25519-sha256; s=202507e; d=mainlining.org; c=relaxed/relaxed; h=Message-ID:Subject:To:From:Date; t=1788363226; bh=xWRL/71/13sRML0I9ovZkoT ukFA4K4ZgczCX4kTAUHM=; b=UDczQYdejHqmtWnBE38qWpkfPEAkkly+/2hD+zOq3V96lQIWjO IkFb8gcLMvw4tVmhB8trHom/X4gqyJhOEQDA==; Date: Wed, 02 Sep 2026 16:33:43 +0100 From: Bradley Morgan To: Fuad Tabba CC: xry111@xry111.site, ben.horgan@arm.com, catalin.marinas@arm.com, james.morse@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, maz@kernel.org, will@kernel.org Subject: =?US-ASCII?Q?Re=3A_arm64=3A_MPAM2=5FEL2_and_MPAMHCR=5FEL2?= =?US-ASCII?Q?_are_left_UNKNOWN_under_arm64=2Enompam?= In-Reply-To: References: <2368f72ea9a447057456eb37450e1c25f4bdddff.camel@xry111.site> <452D9DEB-606C-4B54-B8B6-27E03573A9DE@mainlining.org> Message-ID: <22876BF5-AAA3-4ABE-9BD0-E4D3D97B123D@mainlining.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260902_083354_643240_16294313 X-CRM114-Status: GOOD ( 11.54 ) 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 2 September 2026 16:31:02 BST, Fuad Tabba wrote: >On Wed, 2 Sept 2026 at 16:29, Bradley Morgan wrote: >> >> On 2 September 2026 16:26:55 BST, Xi Ruoyao wrote: >> >On Thu, 2026-08-27 at 09:41 +0100, Ben Horgan wrote: >> >> > not, could the caveat go the other way round: arm64.nompam is for >> >> > systems where firmware ignores MPAM, and should only be set on a >> >> > machine that does not boot without it? >> >> >> >> Yes, seems fine. >> > >> >Sorry for the late reply. This is indeed the original purpose for >> >arm64.nompam, a dirty hack when we have no other ways to make the >system >> >boot. If you think it causes an inconsistent state I'd not complain >> >against adding a loud warning or something. >> >> Sorry to impede in the discussion, would you like me to submit a patch >for >> that? > >No, thanks. It's written already in the form Ben suggested. Will send it >soon. > >/fuad > >> >> > >> > >> >> --- Thanks! >> >https://lore.kernel.org/all/EE579805-42F2-4C58-B752-F28779EEB717@grrlz.net/ Ok, could you cc me in it? --- Thanks! https://lore.kernel.org/all/EE579805-42F2-4C58-B752-F28779EEB717@grrlz.net/