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RE: [Xen-ia64-devel] RE: [Xen-devel] [BUNDLE] Testing a simplerinter-dom

To: "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>
Subject: RE: [Xen-ia64-devel] RE: [Xen-devel] [BUNDLE] Testing a simplerinter-domain transport
From: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Date: Tue, 07 Feb 2006 11:21:57 +1100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, "Yang, Fred" <fred.yang@xxxxxxxxx>, "Nakajima, Jun" <jun.nakajima@xxxxxxxxx>, xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
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On Mon, 2006-02-06 at 14:53 -0800, Magenheimer, Dan (HP Labs Fort
Collins) wrote:
> However, Rusty, this brings up another interesting point...
> Is your new idt code designed so that the page size is
> configurable?  And (wish list) any chance it can be flexible
> enough to deal with a situation where the frontend and backend
> use a different pagesize?  At least where the backend
> pagesize is greater than the frontend pagesize?

It's entirely independent.  The domain says "send/receive the following
address,length pairs to/from this peer".  Now, if the hypervisor is
going to page-swap, then they're going to need to be page-aligned for
both, but the hypervisor is certainly not required to flip pages.  My
current implementation simply does a memcpy.

Cheers,
Rusty.
-- 
 ccontrol: http://ozlabs.org/~rusty/ccontrol


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