linux-kernel - Re: [RFC PATCH 0/4] Support for out-of-tree hypervisor modules in i915/gvt

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Message-ID: <20200114091807.GA12664@infradead.org>
Date:   Tue, 14 Jan 2020 01:18:07 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Julian Stecklina <julian.stecklina@...erus-technology.de>
Cc:     intel-gvt-dev@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        zhiyuan.lv@...el.com, hang.yuan@...el.com,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [RFC PATCH 0/4] Support for out-of-tree hypervisor modules in
 i915/gvt

On Thu, Jan 09, 2020 at 07:13:53PM +0200, Julian Stecklina wrote:
> These patch series removes the dependency of i915/gvt hypervisor
> backends on the driver internals of the i915 driver. Instead, we add a
> small public API that hypervisor backends can use.
> 
> This enables out-of-tree hypervisor backends for the Intel graphics
> virtualization and simplifies development. At the same time, it
> creates at least a bit of a barrier to including more i915 internals
> into kvmgt, which is nice in itself.

Err, hell no.  This is not how Linux kernel development works.