linux-kernel - Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel

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Message-ID: <20161207161929.GD1618@aepfle.de>
Date:   Wed, 7 Dec 2016 17:19:29 +0100
From:   Olaf Hering <olaf@...fle.de>
To:     KY Srinivasan <kys@...rosoft.com>
Cc:     "vkuznets@...hat.com" <vkuznets@...hat.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devel@...uxdriverproject.org" <devel@...uxdriverproject.org>
Subject: Re: move hyperv CHANNELMSG_UNLOAD from crashed kernel to kdump kernel

On Wed, Dec 07, KY Srinivasan wrote:

> Is there a mechanism for stashing away state that can be retrieved in
> the context of the execed kernel.

I have to find out. To simplify things the new approach may only be used
in the kdump case, which already passes various info in cmdline. Most
likely there is a way to preserve a few gpfns with the relevant data.

Olaf

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