LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Simon Horman <horms@verge.net.au>
To: Ian Campbell <Ian.Campbell@citrix.com>
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: Tue, 15 Jan 2008 10:34:10 +0900	[thread overview]
Message-ID: <20080115013409.GB7969@verge.net.au> (raw)
In-Reply-To: <1200317376.11020.9.camel@localhost.localdomain>

On Mon, Jan 14, 2008 at 01:29:36PM +0000, Ian Campbell wrote:
> 
> 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?

Yes, that is right. Sorry for the confusion.

> 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?

No, I was more thinking of the situation where Xen moves its kernel forwards.

-- 
Horms


      reply	other threads:[~2008-01-15  1:34 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
2008-01-15  1:34       ` Simon Horman [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20080115013409.GB7969@verge.net.au \
    --to=horms@verge.net.au \
    --cc=Ian.Campbell@citrix.com \
    --cc=akpm@linux-foundation.org \
    --cc=ebiederm@xmission.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=magnus.damm@gmail.com \
    --cc=vgoyal@redhat.com \
    --cc=ying.huang@intel.com \
    --subject='Re: [PATCH -mm 1/2] kexec/i386: kexec page table code clean up - add arch_kimage' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).