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Date: Thu, 03 Jan 2013 09:34:55 +0000
From: "Jan Beulich" <JBeulich@suse.com>
To: "Daniel Kiper" <daniel.kiper@oracle.com>
Cc: <andrew.cooper3@citrix.com>, <x86@kernel.org>, <tglx@linutronix.de>,
        <kexec@lists.infradead.org>,
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        <hpa@zytor.com>
Subject: Re: [PATCH v3 02/11] x86/kexec: Add extra pointers to
 transition page table PGD, PUD, PMD and PTE
References: <1356574740-6806-1-git-send-email-daniel.kiper@oracle.com>
 <1356574740-6806-2-git-send-email-daniel.kiper@oracle.com>
 <1356574740-6806-3-git-send-email-daniel.kiper@oracle.com>
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>>> On 27.12.12 at 03:18, Daniel Kiper <daniel.kiper@oracle.com> wrote:
> Some implementations (e.g. Xen PVOPS) could not use part of identity page 
> table
> to construct transition page table. It means that they require separate 
> PUDs,
> PMDs and PTEs for virtual and physical (identity) mapping. To satisfy that
> requirement add extra pointer to PGD, PUD, PMD and PTE and align existing 
> code.

So you keep posting this despite it having got pointed out on each
earlier submission that this is unnecessary, proven by the fact that
the non-pvops Xen kernels can get away without it. Why?

Jan