Re: [RFC PATCH] virtio: change config to guest endian.

[Rusty Russell <rusty@rustcorp.com.au>]

On Tuesday 22 April 2008 21:22:48 Avi Kivity wrote:
> > The virtio config space was originally chosen to be little-endian,
> > because we thought the config might be part of the PCI config space
> > for virtio_pci.  It's actually a separate mmio region, so that
> > argument holds little water; as only x86 is currently using the virtio
> > mechanism, we can change this (but must do so now, before the
> > impending s390 and ppc merges).
>
> This will probably annoy Hollis which has guests that can go both ways.

Yes, I discussed this with Hollis.  But the virtio rings themselves already 
have this issue: we don't do any endian conversion on them and assume 
they're "our" endian in the guest.

We may still regret not doing *everything* little-endian, but this doesn't 
make it worse.

Thanks,
Rusty.


-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference 
Don't miss this year's exciting event. There's still time to save $100. 
Use priority code J8TL2D2. 
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone