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From: Zachary Amsden <zach@vmware.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Chris Wright <chrisw@sous-sol.org>,
	Virtualization Mailing List <virtualization@lists.osdl.org>
Subject: Re: Handling PCI/ROM space
Date: Wed, 18 Oct 2006 15:14:12 -0700	[thread overview]
Message-ID: <4536A734.7030904@vmware.com> (raw)
In-Reply-To: <45369FD4.3030303@goop.org>

Jeremy Fitzhardinge wrote:
> I'm seeing oopses in probe_roms() and pci_find_bios(), apparently 
> because those pages are not mapped under Xen.  I'm not sure why I'm 
> seeing this now and not before, but I suspect its because I enabled 
> CONFIG_DEBUG_PAGEALLOC.  Anyway, I've got these patches to deal with 
> these cases:

Probably a config file difference - GOBIOS vs GODIRECT.

These patches look fine, although is there a more general solution?  
Like bypassing the whole PCI ROM probing entirely?  We don't really want 
to use the PCI ROM here either, although we have a slightly worse 
problem - the pages are mapped and do have a PCI ROM.  Perhaps 
paravirt-ops should be able to flip a global switch to disable this 
(perhaps already there?).

Zach

  reply	other threads:[~2006-10-18 22:14 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-18 21:42 Handling PCI/ROM space Jeremy Fitzhardinge
2006-10-18 22:14 ` Zachary Amsden [this message]
2006-10-18 22:24   ` Jeremy Fitzhardinge

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