linux-kernel - Re: [RFC] Support for Arm CCA VMs on Linux

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Message-ID: <Y9PtKJ3Wicc19JF1@myrica>
Date:   Fri, 27 Jan 2023 15:26:32 +0000
From:   Jean-Philippe Brucker <jean-philippe@...aro.org>
To:     Suzuki K Poulose <suzuki.poulose@....com>
Cc:     linux-coco@...ts.linux.dev, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, kvmarm@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org,
        Alexandru Elisei <alexandru.elisei@....com>,
        Andrew Jones <andrew.jones@...ux.dev>,
        Catalin Marinas <catalin.marinas@....com>,
        Chao Peng <chao.p.peng@...ux.intel.com>,
        Christoffer Dall <christoffer.dall@....com>,
        Fuad Tabba <tabba@...gle.com>,
        James Morse <james.morse@....com>,
        Joey Gouly <Joey.Gouly@....com>, Marc Zyngier <maz@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Oliver Upton <oliver.upton@...ux.dev>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Quentin Perret <qperret@...gle.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Steven Price <steven.price@....com>,
        Thomas Huth <thuth@...hat.com>, Will Deacon <will@...nel.org>,
        Zenghui Yu <yuzenghui@...wei.com>, kvmarm@...ts.cs.columbia.edu
Subject: Re: [RFC] Support for Arm CCA VMs on Linux

On Fri, Jan 27, 2023 at 11:22:48AM +0000, Suzuki K Poulose wrote:
> We are happy to announce the early RFC 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
>    wherever possible with other Confidential Compute solutions.

A prototype for launching Realm VMs with QEMU is available at:
https://lore.kernel.org/qemu-devel/20230127150727.612594-1-jean-philippe@linaro.org/

Thanks,
Jean