From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lj1-f176.google.com (mail-lj1-f176.google.com [209.85.208.176]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B1E6C14B075 for ; Fri, 12 Apr 2024 16:52:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712940736; cv=none; b=JNDvC4KwvJ+3mdWrGlrKHP7fWLYGq1Uw7n4VryEffkXdN1mepYqr0htADh2Ar+PsGeCg7zYw4qu7WrtaV2bh3GPZv7eYLp4s89b9m/6iLzYriDUzHVRxXHaBMBYMYeLlrgQjUpV0K0xWALynoBsFcsSpUuSvGgLvqncSLwGzmYw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712940736; c=relaxed/simple; bh=JEVa4ex2ZDcngKNJsXDeM2lwaJ7PKNt/9rGEMEiRKOI=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; b=XS9CdBnbOOpjR45eQee6eC1g0WzMrFsA4rjES7/QCPe/NapARhRqDROVSdpdzHCPMKk4mClYPhCuLb3uRveXixQdXj5ErsIs1jRB5wSOubV62kWDGHiKq004iqT0K5XkuyrO4WGBNPZRyS1A7rCQSNUIUBP0nv2G2RGXmf0xWSY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=Rw/V2yri; arc=none smtp.client-ip=209.85.208.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="Rw/V2yri" Received: by mail-lj1-f176.google.com with SMTP id 38308e7fff4ca-2d715638540so12818291fa.3 for ; Fri, 12 Apr 2024 09:52:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1712940733; x=1713545533; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:message-id:subject:cc :to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=F129E/qMOIsRNJvcD537N8BPcYpqI13fs6vRxipyLXs=; b=Rw/V2yriWqv/AZKsihsTM1444GfquRK3pD3IMxStklXaUCWBkkmAhhgjllHSLHw+Lh N1jRhCSmBDqce/2b/2HnsAiQVoSKp0CooFXPJ3FXjl4woU7/GPCV2iI9kvZOT2LrM4Wc HvCUufg9UQE8b7Kp4WjAHD8+MMHbmA9oPl2pE32dVrwhRS8qrOW03oSIlmgT3nroz87u mmMuCtBC8IfIHbPJ4brRHKLMMGVuyRWqvX308q9SdeAFN7CKNRtj8/GOr6cAPwcPq9c0 yqfuYDebKbsxhDvWKDjRp+FYXmbsNurAqH7ifDdhbhK2z6pU+9Ks6JxBRcB9abd/mSmw 8vuA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712940733; x=1713545533; h=in-reply-to:content-disposition:mime-version:message-id:subject:cc :to:from:date:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=F129E/qMOIsRNJvcD537N8BPcYpqI13fs6vRxipyLXs=; b=wCak7fTakLzEkvAQQJnSpeAKMHJb88h5YxRGUD+S6LdVt3ENm9DRhFYK5rCdvI/E7E W9HlVDe4K6wvZ0FYfqxevhJYxy3BwTqObC2UCzmz0v/cEE8LoY03iq7xfsfQ1gNicTNi bMAhP+Qtcl++u4P8wVUHkseD8YxeIKnZnhLjI3WxGomo155EiJTbux0KOihLqLADR8hT zm6+HLu7/Bm9eKYG7fG0ULvmDpk/tjEW2LjaPAPyI0HXwu/iyd3XlU6JId/YKBFI5eFL E43OKVzAH9FiFWStYHg7uLzbZFPtBjJNZqHEHKQB3C1+Hw/nVbupSxYl1lOUX08SLGwP DYbg== X-Gm-Message-State: AOJu0Yz0zGe9Nr7WFd9UNSaASGdMRdjKrDF4H3/mj1C2OSgyMFb1Ot+E r/V88Rg3KXndQC63A1oKoVE7plk8tYrIVQBT52jYN1aJI0vjA4RpK7KeEacQc5w= X-Google-Smtp-Source: AGHT+IFM2/dXuGXELLLfc+flbBb9xsmkA1SIJGRaZWidPMq1PtFsBq8OiGD0hOU+ZU8oOVk804e3sg== X-Received: by 2002:a05:651c:93:b0:2d8:3e60:b9c9 with SMTP id 19-20020a05651c009300b002d83e60b9c9mr1767624ljq.33.1712940732768; Fri, 12 Apr 2024 09:52:12 -0700 (PDT) Received: from myrica ([2.221.137.100]) by smtp.gmail.com with ESMTPSA id fc18-20020a05600c525200b0041563096e15sm9497631wmb.5.2024.04.12.09.52.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Apr 2024 09:52:12 -0700 (PDT) Date: Fri, 12 Apr 2024 17:52:24 +0100 From: Jean-Philippe Brucker To: Steven Price Cc: kvm@vger.kernel.org, kvmarm@lists.linux.dev, Catalin Marinas , 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 , Mathieu Poirier , Thomas Fossati , Kevin Zhao , Leonardo Augusto =?utf-8?Q?Guimar=C3=A3es?= Garcia Subject: Re: [v2] Support for Arm CCA VMs on Linux Message-ID: <20240412165224.GA357251@myrica> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240412084056.1733704-1-steven.price@arm.com> On Fri, Apr 12, 2024 at 09:40:56AM +0100, Steven Price wrote: > We are happy to announce the second version of the Arm Confidential > Compute Architecture (CCA) support for the Linux stack. The intention is > to seek early feedback in the following areas: > * KVM integration of the Arm CCA; > * KVM UABI for managing the Realms, seeking to generalise the > operations where possible with other Confidential Compute solutions; > * Linux Guest support for Realms. > > See the previous RFC[1] for a more detailed overview of Arm's CCA > solution, or visible the Arm CCA Landing page[2]. > > This series is based on the final RMM v1.0 (EAC5) specification[3]. Instructions for building and running the CCA stack on QEMU, both as system emulation and VMM, are available here: https://linaro.atlassian.net/wiki/spaces/QEMU/pages/29051027459/Building+an+RME+stack+for+QEMU I'll send out the QEMU VMM patches shortly: https://git.codelinaro.org/linaro/dcap/qemu.git branch cca/v2 Thanks, Jean > [1] Previous RFC > https://lore.kernel.org/r/20230127112248.136810-1-suzuki.poulose%40arm.com > [2] Arm CCA Landing page (See Key Resources section for various documentation) > https://www.arm.com/architecture/security-features/arm-confidential-compute-architecture > [3] RMM v1.0-EAC5 specification > https://developer.arm.com/documentation/den0137/1-0eac5/ > [4] Shrinkwrap > https://git.gitlab.arm.com/tooling/shrinkwrap > [5] Linux support for Arm CCA RMM v1.0-EAC5 > https://lore.kernel.org/r/fb259449-026e-4083-a02b-f8a4ebea1f87%40arm.com >