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 CADCD14659D; Mon, 26 Aug 2024 10:04:06 +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=1724666646; cv=none; b=sAoQHJqTElLCIEkSMQAYvZAqFKf+ec9v1M0YXowlBytHyB0Q78xK3x3ZVnvFRLk4LlK+izGP4MI8khAJdQJjxs0mkKAG2Mpz3Y3kybCcK9xDpRS7kenltPlni0HqRr0+lXJeQJ3MXwjo4GTUyoHEErF1b527+xFKiHO8fM2sRWI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724666646; c=relaxed/simple; bh=zS8SgeyNNZ4AWDI5F0SR1SAYt3Oa/Ux2Hq26yQcI/t8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Db+Hb2cblRMUN1UB7YzIbAekb0+vNtq6AMHVjfedkQJPLbh/Vca4r4GwyeOo15Wy7yRkTz0IPo6rN/4u4Ozf/mxUVhlIwTqVEp1l4/stSkV+zhXJ1ej+VprvuyRg/aCedXpisMz02cHB8QSwhhOcDJA0atGDoWn4vR7e3IYagq0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 44513C51407; Mon, 26 Aug 2024 10:04:02 +0000 (UTC) Date: Mon, 26 Aug 2024 13:04:11 +0300 From: Catalin Marinas To: Steven Price Cc: kvm@vger.kernel.org, kvmarm@lists.linux.dev, Marc Zyngier , Will Deacon , James Morse , Oliver Upton , Suzuki K Poulose , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Joey Gouly , Alexandru Elisei , Christoffer Dall , Fuad Tabba , linux-coco@lists.linux.dev, Ganapatrao Kulkarni , Gavin Shan , Shanker Donthineni , Alper Gun Subject: Re: [PATCH v5 06/19] arm64: realm: Query IPA size from the RMM Message-ID: References: <20240819131924.372366-1-steven.price@arm.com> <20240819131924.372366-7-steven.price@arm.com> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240819131924.372366-7-steven.price@arm.com> On Mon, Aug 19, 2024 at 02:19:11PM +0100, Steven Price wrote: > The top bit of the configured IPA size is used as an attribute to > control whether the address is protected or shared. Query the > configuration from the RMM to assertain which bit this is. > > Co-developed-by: Suzuki K Poulose > Signed-off-by: Suzuki K Poulose > Signed-off-by: Steven Price Reviewed-by: Catalin Marinas