linux-kernel - Re: [RFC PATCH v3 4/4] x86: Add hypercall for acrn

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Message-ID: <20190408151010.GI15689@zn.tnic>
Date:   Mon, 8 Apr 2019 17:10:10 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Zhao Yakui <yakui.zhao@...el.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org, tglx@...utronix.de,
        Jason Chen CJ <jason.cj.chen@...el.com>
Subject: Re: [RFC PATCH v3 4/4] x86: Add hypercall for acrn_guest

On Mon, Apr 08, 2019 at 04:12:11PM +0800, Zhao Yakui wrote:
> When acrn_hypervisor is detected, the hypercall is needed so that the
> acrn guest can query/config some settings. For example: it can be used
> to query the resources in hypervisor and manage the CPU/memory/device/
> interrupt for Guest system.

Good example.

What is "Guest system" and why is capitalized? Do you mean "the guest
operating system" or simply "the guest"?

> So the hypercall is added so that the kernel can communicate with the

"So add the hypercall so that... "

> low-level acrn-hypervisor.

Is it acrn_hypervisor or acrn-hypervisor or the ACRN hypervisor or ...?

Unify the naming pls.

> On x86 it is implemented by using vmacll when

During last review Thomas said:

"is implemented with the VMCALL instruction"

You still have it wrong. Which makes me think you haven't even gone over
*all* review comments as this is the second missed review comment in a
4-patches set.

So I'm going to stop reviewing here and won't look at your patches until
you incorporate *all* review comments from all people.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.