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From: Ian Campbell <Ian.Campbell@citrix.com>
To: Simon Horman <horms@verge.net.au>
Cc: Vivek Goyal <vgoyal@redhat.com>,
	"Huang, Ying" <ying.huang@intel.com>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, Magnus Damm <magnus.damm@gmail.com>
Subject: Re: [PATCH -mm 1/2] kexec/i386: kexec page table code clean up - add arch_kimage
Date: Mon, 14 Jan 2008 13:29:36 +0000	[thread overview]
Message-ID: <1200317376.11020.9.camel@localhost.localdomain> (raw)
In-Reply-To: <20080110081535.GA30505@verge.net.au>


On Thu, 2008-01-10 at 17:15 +0900, Simon Horman wrote: 
> > Have you tested Xen too? Does it run into issues with this change?
> 
> Xen will need to be updated for this change but it shouldn't be a big
> deal. Basically right now it calls __ma() (which is kind of like __pa())
> on kexec_pgd and friends. Updating the arguments to __ma() to use
> the new arch_kimage pointers should be easy enough.

I think you mean the Xen specific parts of the kexec machinery in the
kernel.c would need updating rather than the hypervisor, right?

I don't think these changes will cause anything more than minor problems
for whoever ports the Xen kexec stuff upstream.

> N.B: As this is Dom0 code (not DomU) it is maintained in the xen
> repository and has been merged into Linux.

I don't think we would bother backporting these changes to there, would
we?

Ian.



  reply	other threads:[~2008-01-14 13:30 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-09  2:57 Huang, Ying
2008-01-10  1:14 ` Vivek Goyal
2008-01-10  2:06   ` Huang, Ying
2008-01-10  8:15   ` Simon Horman
2008-01-14 13:29     ` Ian Campbell [this message]
2008-01-15  1:34       ` Simon Horman

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