linux-kernel - Re: [PATCH] riscv: Add initial Xen guest support for RISC-V

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Message-ID: <CAKp59VGvJ6dOU06BhLVU30ioWTShWyo-0Ngty9MM_aH1rKYoWA@mail.gmail.com>
Date: Wed, 15 Jan 2025 19:08:10 +0100
From: Milan Đokić <milandjokic1995@...il.com>
To: Anup Patel <anup@...infault.org>
Cc: linux-riscv@...ts.infradead.org, paul.walmsley@...ive.com, 
	palmer@...belt.com, aou@...s.berkeley.edu, jgross@...e.com, 
	sstabellini@...nel.org, oleksandr_tyshchenko@...m.com, 
	Slavisa.Petrovic@...rk.com, Milan.Djokic@...rk.com, 
	rafael.j.wysocki@...el.com, sunilvl@...tanamicro.com, takakura@...inux.co.jp, 
	linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org, 
	iommu@...ts.linux.dev
Subject: Re: [PATCH] riscv: Add initial Xen guest support for RISC-V

On Tue, Jan 14, 2025 at 5:41 PM Anup Patel <anup@...infault.org> wrote:
>
> On Tue, Jan 14, 2025 at 9:41 PM Milan Djokic <milandjokic1995@...il.com> wrote:
> >
> > From: Slavisa Petrovic <Slavisa.Petrovic@...rk.com>
> >
> > This patch introduces initial support for running RISC-V as a Xen guest.
> > It provides the necessary infrastructure and stubs for Xen-specific
> > operations. Key changes include:
> >
> > - Modifications to the RISC-V kernel to integrate Xen-specific hypercalls
> >   and interfaces, with function implementations stubbed for future work.
> > - Introduction of Xen-specific headers for RISC-V, including event
> >   handling, hypervisor interaction, and page management. Functions are
> >   defined but not yet implemented.
> > - Stub implementations for memory management, grant tables, and context
> >   switching in the Xen environment, allowing further development and
> >   integration.
> >
> > Signed-off-by: Milan Djokic <Milan.Djokic@...rk.com>
> > Signed-off-by: Slavisa Petrovic <Slavisa.Petrovic@...rk.com>
>
> A single patch with many changes is hard to review.
>
> Please convert this patch into a series with smaller patches.
> Also, include a cover letter in the series explaining how to
> test Xen on RISC-V.
>
> Regards,
> Anup
>
Hello Anup,

We're currently working on patch breakdown in smaller logical parts.
Will be converted into patch series in the next revision.

BR,
Milan