linux-kernel - Re: Access to non-RAM pages

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Message-ID: <0a1b8475-157d-db10-e71f-1899c0abde67@suse.com>
Date:   Mon, 3 Sep 2018 07:08:25 +0200
From:   Juergen Gross <jgross@...e.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:     Jiri Kosina <jikos@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Michal Hocko <mhocko@...e.com>,
        Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Will Deacon <will.deacon@....com>
Subject: Re: Access to non-RAM pages

On 03/09/18 04:10, Linus Torvalds wrote:
> So _practically_ this is just a Xen bug, nothing more.
> 
> But since in _theory_ you could have MMIO abut regular RAM directly,
> it's worth maybe making sure it's purely theory.

And that was exactly the reason I brought it up. :-)


Juergen