linux-kernel - Re: [PATCH v2 1/7] docs: geniezone: Introduce GenieZone hypervisor

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Message-ID: <ZF5ud9CedwBnWXBN@localhost>
Date:   Fri, 12 May 2023 18:51:03 +0200
From:   Pavel Machek <pavel@....cz>
To:     Yi-De Wu <yi-de.wu@...iatek.com>
Cc:     Yingshiuan Pan <yingshiuan.pan@...iatek.com>,
        Ze-Yu Wang <ze-yu.wang@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jonathan Corbet <corbet@....net>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arch@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        David Bradil <dbrazdil@...gle.com>,
        Trilok Soni <quic_tsoni@...cinc.com>,
        Jade Shih <jades.shih@...iatek.com>,
        Miles Chen <miles.chen@...iatek.com>,
        Ivan Tseng <ivan.tseng@...iatek.com>,
        My Chuang <my.chuang@...iatek.com>,
        Shawn Hsiao <shawn.hsiao@...iatek.com>,
        PeiLun Suei <peilun.suei@...iatek.com>,
        Liju Chen <liju-clr.chen@...iatek.com>
Subject: Re: [PATCH v2 1/7] docs: geniezone: Introduce GenieZone hypervisor

Hi!

> GenieZone is MediaTek proprietary hypervisor solution, and it is running
> in EL2 stand alone as a type-I hypervisor. It is a pure EL2
> implementation which implies it does not rely any specific host VM, and
> this behavior improves GenieZone's security as it limits its interface.

> +++ b/Documentation/virt/geniezone/introduction.rst
> @@ -0,0 +1,34 @@

> +Platform Virtualization
> +=======================
> +We leverages arm64's timer virtualization and gic virtualization for timer and
> +interrupts controller.

'interrupt'.

> +Device Virtualizaton
> +====================
> +We adopts VMM's virtio devices emulations by passing io trap to
> VMM, and virtio

'adopt', 'device emulation'

> +is a well-known and widely used virtual device implementation.
> +

Plus, I'd expect documentation to be more detailed or have pointer
where
to learn more.

BR,							Pavel

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