[Xen-ia64-devel] RE: [Patch] Add more dom0 operations

["Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>]

Kevin ---

I've accepted and pushed to xen-ia64.bkbits.net all of your
patches except this one.  Since this impacts common code
in a "temporary" way, I suspect Keir would reject it.

Please start a thread on xen-devel to discuss the right
way to make dom0_ops.c more friendly for arch-dep features
and we'll see what Keir and the Xen core maintainers
think.

> 3. I'm not sure why latest check-in about DOM0_GETMEMLIST differs much
> from x86 behavior. Could you explain a bit about that? IMHO, XEN/IA64

I'll leave it to Matt to explain this in more detail.

Thanks,
Dan 

> -----Original Message-----
> From: Tian, Kevin [mailto:kevin.tian@xxxxxxxxx] 
> Sent: Tuesday, June 14, 2005 8:07 AM
> To: Magenheimer, Dan (HP Labs Fort Collins)
> Cc: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
> Subject: [Patch] Add more dom0 operations
> 
> Hi, Dan,
>       This patch adds more dom0 operations support, with following
> notes:
> 
> 1. Each architecture may have its own set of operations, so a new
> dom0_ops_ia64.h is created temporarily. Later cleaner re-org should be
> made. :)
> 
> 2. Add a new hypercall DOM0_GET_SECTIONINFO, to get memory hole, I/O
> port, etc in guest physical address space. This is necessary 
> for CP and
> DM to create foreign map, especially for VTI domain. As Ian 
> said before,
> para-virtualized x86 guest is configured with contiguous 
> physical memory
> without any hole. Though currently not required for para, keeping it
> there at least provides a possibility for other variations. :)
> 
> 3. I'm not sure why latest check-in about DOM0_GETMEMLIST differs much
> from x86 behavior. Could you explain a bit about that? IMHO, XEN/IA64
> can have same syntax as x86 easily, since page allocator already
> aggregates available pages list under domain struct. So a different
> version is provided enclosed by CONFIG_VTI. If we can set on the same
> page later, it may be extracted out then.
> 
> Signed-off-by Kevin Tian <Kevin.tian@xxxxxxxxx>
> 
> Thanks,
> Kevin
> 

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