From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793590315; b=3joX9VDq13h9ezjdiJtQ7H4s76xjqUwu2Ik4ZkKFKpipBEdU4S5LvwlQA9GvPATK/8MQ bcGUn8dsMlcTK9jiEwVBl5r7VbbgyZ5pMzJHI3w5zNzIyjkSvq21Ia3uirTXanzeuKCaQ WzwG5ymeSegbCF7aVmG0MMb8+HL5hmollv1GopoFBdblskct3q6A2/rqxCOuxjmFbjcCJ YLw9+dJLNAWa3dQVdR6pcsaeIKtnqvVhM+fdnGIaXN+pcEIFRimWEM4Fcoykl6cqVStwS UrmCMtmdX09iteuJ9Nfa7ZsV1qnymsW8YaVJ65WZUeRAunXTUEbzFns3pjEfVHKy4Fg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793590315; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition: Content-Transfer-Encoding:In-Reply-To; bh=RhYsjUIWG336Hgn0m3bYtEBzvcC0VLP1VHsbp8WPaoY=; b=xn7lM8vo8bDBoIG6EbXb6JSlmUGojldhQI/beKgbcd5CmuCPyT7PnSn+A9EP66PJ1Fla JIYLmj+iO7ebyk5Tje4xvO6Z3QEpjSJ7/Vm10yO+Cabo2pVtimvfBFiR3xXTkV4k+gq/D kUQLlsDFRRwzVp6Tm1RCwMBGf1P8woR9bf/2988nTYCkX7nNo3Pel4EJKFmudsNJIuBZS hlsz1FmMlpml6xcMtCtGZ1ttK4+u5g/k47vWwbsEKxhcXZg3NBC7srPwifZDsPYIIQgD4 hx3Q6Jz4ffNEVh80IuTOX/3Kin2uA709wACXy070Fu++xgHb3wUhBibAvE57hVNKigQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=lRxLj4qk; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 32B95606A324; Mon, 2 Nov 2026 03:31:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=lRxLj4qk Received: by smtp.kernel.org (Postfix) with ESMTPSA id 878211F000C1; Mon, 2 Nov 2026 03:31:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793590314; bh=RhYsjUIWG336Hgn0m3bYtEBzvcC0VLP1VHsbp8WPaoY=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=lRxLj4qkzaK86j72OoHiY9pf2kvEqW47kCfBZeVZv90V98gUJOyc0MXmBNt9Hx01s H8oSTVCITCAkx8sM9aBVJrrpWjMLOzwS0E7lZMlBOKwAJsXYfjW4aRB0d4bhQzgljn bMcc/MC8dNFuMZ4WpdbZPSQkO2Qz499gGHuUNfxXBMZwIxWbEdTVxKXMC0BT5QTrLk esZTmJSf1QVRXG1JRvQGcuE27+FdTz8gwt8vbs4OgDFjc+vbKd5TptgZUrYXltFP1e xqUA+6UKPXGnAiVtgdmrTPDnfoMIyjQ5taPalgdpe0+EQ2VgzSWna51R2p6Wu5ACmh 5Arp4xBevXjYA== Date: Mon, 2 Nov 2026 03:31:51 +0000 From: Tzung-Bi Shih To: =?utf-8?B?TWljaGHFgiBLb3BlxIc=?= Cc: Yidi Lin , Hsin-Te Yuan , Brian Norris , Julius Werner , chrome-platform@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH] firmware: coreboot: Don't skip CBMEM entries outside of known memory Message-ID: References: <20261017090351.1266064-1-michal@nozomi.space> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20261017090351.1266064-1-michal@nozomi.space> On Sat, Oct 17, 2026 at 11:03:51AM +0200, Michał Kopeć wrote: > coreboot leaves CBMEM out of the /memory node of the device tree that it > passes to FIT payloads, e.g. LinuxBoot on arm64 Chromebooks, and only > lists it in the memory reservation block. The kernel has no resource for > that memory, so region_intersects() reports it as neither System RAM nor > Reserved memory, and since commit e31ecda9e3af ("firmware: coreboot: > Skip no-map CBMEM entries") all CBMEM entries are skipped on such boards. > That loses the coreboot log, the TPM event log and everything else that > CBMEM devices expose. > > [...] Applied to https://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git for-firmware-next [1/1] firmware: coreboot: Don't skip CBMEM entries outside of known memory commit: e094fd05defaf0b05774ea1c65fc2d0ab798c809 Thanks!