linux-kernel - Re: [PATCH v4 15/15] Drivers: hv: Add modules to expose /dev/mshv to VMMs running on Hyper-V

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Date:   Sat, 30 Sep 2023 18:11:19 +0000
From:   Wei Liu <wei.liu@...nel.org>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Nuno Das Neves <nunodasneves@...ux.microsoft.com>,
        linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org,
        x86@...nel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arch@...r.kernel.org, patches@...ts.linux.dev,
        mikelley@...rosoft.com, kys@...rosoft.com, wei.liu@...nel.org,
        haiyangz@...rosoft.com, decui@...rosoft.com,
        apais@...ux.microsoft.com, Tianyu.Lan@...rosoft.com,
        ssengar@...ux.microsoft.com, mukeshrathor@...rosoft.com,
        stanislav.kinsburskiy@...il.com, jinankjain@...ux.microsoft.com,
        vkuznets@...hat.com, tglx@...utronix.de, mingo@...hat.com,
        bp@...en8.de, dave.hansen@...ux.intel.com, hpa@...or.com,
        will@...nel.org, catalin.marinas@....com
Subject: Re: [PATCH v4 15/15] Drivers: hv: Add modules to expose /dev/mshv to
 VMMs running on Hyper-V

On Sat, Sep 30, 2023 at 08:11:37AM +0200, Greg KH wrote:
> On Fri, Sep 29, 2023 at 11:01:41AM -0700, Nuno Das Neves wrote:
> > --- /dev/null
> > +++ b/include/uapi/linux/mshv.h
> > @@ -0,0 +1,306 @@
> > +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
> 
> Much better.
> 
> > +#ifndef _UAPI_LINUX_MSHV_H
> > +#define _UAPI_LINUX_MSHV_H
> > +
> > +/*
> > + * Userspace interface for /dev/mshv
> > + * Microsoft Hypervisor root partition APIs
> > + * NOTE: This API is not yet stable!
> 
> Sorry, that will not work for obvious reasons.

This can be removed. For practical purposes, the API has been stable for
the past three years.

Thanks,
Wei.

> 
> greg k-h