linux-kernel - Re: [PATCH v1 3/6] soc: mediatek: virt: geniezone: Introduce GenieZone hypervisor support

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Message-ID: <1aa701cc-92ca-71be-0663-df4bfae66c2f@linaro.org>
Date:   Thu, 13 Apr 2023 14:55:42 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Yi-De Wu <yi-de.wu@...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>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Yingshiuan Pan <yingshiuan.pan@...iatek.com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Jades 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>,
        Ze-Yu Wang <ze-yu.wang@...iatek.com>,
        Liju Chen <liju-clr.chen@...iatek.com>
Subject: Re: [PATCH v1 3/6] soc: mediatek: virt: geniezone: Introduce
 GenieZone hypervisor support

On 13/04/2023 11:07, Yi-De Wu wrote:
> From: "Yingshiuan Pan" <yingshiuan.pan@...iatek.com>
> 
> GenieZone is MediaTek proprietary hypervisor solution, and it is running
> in EL2 stand alone as a type-I hypervisor. This patch exports a set of
> ioctl interfaces for userspace VMM (e.g., crosvm) to operate guest VMs
> lifecycle (creation, running, and destroy) on GenieZone.
> 
> Signed-off-by: Yingshiuan Pan <yingshiuan.pan@...iatek.com>
> Signed-off-by: Yi-De Wu <yi-de.wu@...iatek.com>
> ---
>  arch/arm64/include/uapi/asm/gzvm_arch.h       |  79 ++++
>  drivers/soc/mediatek/Kconfig                  |   2 +
>  drivers/soc/mediatek/Makefile                 |   1 +
>  drivers/soc/mediatek/virt/geniezone/Kconfig   |  17 +

Hypervisor drivers do not go to soc. Stop shoving there everything from
your downstream. Find appropriate directory, e.g. maybe drivers/virt.
See:
https://lore.kernel.org/all/20230304010632.2127470-1-quic_eberman@quicinc.com/

You should follow that discussion as well and be sure that all concerns
raised for Gunyah are solved also here.

Best regards,
Krzysztof