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[Xen-devel] RE: [Xen-ia64-devel] cset 8690 blk driver regression

To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
Subject: [Xen-devel] RE: [Xen-ia64-devel] cset 8690 blk driver regression
From: "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>
Date: Tue, 31 Jan 2006 14:48:15 -0800
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, sos22@xxxxxxxxx, "Williamson, Alex \(Linux Kernel Dev\)" <alex.williamson@xxxxxx>, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
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Thread-topic: [Xen-ia64-devel] cset 8690 blk driver regression
These were two separate bugs.  Backing out
(or otherwise rewriting) that patch is still
necessary for domU to boot on ia64.

A gnttab_shared_gpfn macro sounds good to me!
(assuming defined to the pre-patch lines for
ia64 and the post-patch lines for x86?)


> -----Original Message-----
> From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx] 
> Sent: Tuesday, January 31, 2006 3:33 PM
> To: Magenheimer, Dan (HP Labs Fort Collins)
> Cc: Williamson, Alex (Linux Kernel Dev); 
> xen-ia64-devel@xxxxxxxxxxxxxxxxxxx; 
> xen-devel@xxxxxxxxxxxxxxxxxxx; sos22@xxxxxxxxx
> Subject: Re: [Xen-ia64-devel] cset 8690 blk driver regression
> On 31 Jan 2006, at 20:11, Magenheimer, Dan (HP Labs Fort 
> Collins) wrote:
> > To fix it so that it works on x86 (shadow and non-shadow)
> > and ia64, perhaps a macro call could be substituted for
> > the three removed lines and define'd differently for each
> > arch in asm/shadow.h?
> I removed the dummy definition of __mfn_to_gpfn() from xen/shadow.h 
> that was hiding ia64's own definition. I think Alex Williamson posted 
> that as a fix. Is using that macro here not applicable for 
> ia64 at all? 
> If not and the tree is still broken for ia64 then we can 
> perhaps define 
> a gnttab_shared_gpfn() macro.
>   -- Keir

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