From: Gerd Hoffmann <kraxel@suse.de>
To: John Levon <levon@movementarian.org>
Cc: xen-devel@lists.xensource.com
Subject: Re: bimodal PAE and compatibility
Date: Mon, 08 Jan 2007 16:05:36 +0100 [thread overview]
Message-ID: <45A25DC0.1040401@suse.de> (raw)
In-Reply-To: <20070108144932.GA1557@totally.trollied.org.uk>
John Levon wrote:
> We currently ship a PAE 32-bit domU that we can trivially make bimodal,
> except that if we set it to "bimodal", then older Xens will default to
> thinking the domU is not PAE:
>
> 353 dsi->pae_kernel = PAEKERN_no;
> 354 if ( dsi->__elfnote_section )
> 355 {
> 356 p = xen_elfnote_string(dsi, XEN_ELFNOTE_PAE_MODE);
> 357 if ( p != NULL && strncmp(p, "yes", 3) == 0 )
> 358 dsi->pae_kernel = PAEKERN_extended_cr3;
>
> Could we have a new note instead?
I don't think it improves the situation, for older Xens you need two
kernels anyway, even if the only difference is the content of the
pae_mode elf note ...
cheers,
Gerd
--
Gerd Hoffmann <kraxel@suse.de>
next prev parent reply other threads:[~2007-01-08 15:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-08 14:49 bimodal PAE and compatibility John Levon
2007-01-08 15:05 ` Gerd Hoffmann [this message]
2007-01-08 15:16 ` John Levon
2007-01-08 15:24 ` Gerd Hoffmann
2007-01-08 15:29 ` John Levon
2007-01-08 16:52 ` Gerd Hoffmann
2007-01-08 16:24 ` Keir Fraser
2007-01-08 17:27 ` John Levon
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