From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 7E1FA2417C4; Tue, 20 May 2025 13:20:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747747237; cv=none; b=Vc1WlkEN5eAHEKH3NblMhcZyok22/kFO1ELcY33pvS5/wJ1t+gweX3LOZwnT/6DFQ3WsF+vmry2IBamRte3+hUFp9CXJs4ysjWclUcdVbkAdgNPzNOGCuVqhHrr+KRGGY0fp7TPLqv270NKHLEcLplLqLDJkGQQlW6WjNP8PXxw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747747237; c=relaxed/simple; bh=1wKCwoSuNTLmdIl6L2iYORx5JdClsy4VfnWhvopqpLA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=qmQ9IRjyIlOrCYa+exh69jtxt2Hjq2fySTiGyy53TWjiPJpgpvc4oOhADuQH17ovP09EMxmNs0q20vPoUnq50O0iWc0X+W0WUmH76KcV6bv4h9XE1IVraCrEy2ztratXOj6u97LRWK+9IQIw0PC931CeC+Pb+ACsW6GE7GSCs2g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 654871516; Tue, 20 May 2025 06:20:22 -0700 (PDT) Received: from [10.1.36.74] (Suzukis-MBP.cambridge.arm.com [10.1.36.74]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 86B1E3F5A1; Tue, 20 May 2025 06:20:32 -0700 (PDT) Message-ID: Date: Tue, 20 May 2025 14:20:31 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 30/43] arm64: RME: Prevent Device mappings for Realms Content-Language: en-GB To: Steven Price , kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: Catalin Marinas , Marc Zyngier , Will Deacon , James Morse , Oliver Upton , 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 , "Aneesh Kumar K . V" References: <20250416134208.383984-1-steven.price@arm.com> <20250416134208.383984-31-steven.price@arm.com> From: Suzuki K Poulose In-Reply-To: <20250416134208.383984-31-steven.price@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 16/04/2025 14:41, Steven Price wrote: > Physical device assignment is not yet supported by the RMM, so it > doesn't make much sense to allow device mappings within the realm. > Prevent them when the guest is a realm. > > Signed-off-by: Steven Price > Reviewed-by: Gavin Shan Reviewed-by: Suzuki K Poulose