From: Avi Kivity <avi@qumranet.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: kvm-devel <kvm-devel@lists.sourceforge.net>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Hollis Blanchard <hollisb@us.ibm.com>,
virtualization@lists.linux-foundation.org
Subject: Re: [RFC PATCH] virtio: change config to guest endian.
Date: Tue, 22 Apr 2008 14:22:48 +0300 [thread overview]
Message-ID: <480DCA88.4010407@qumranet.com> (raw)
In-Reply-To: <200804221357.34571.rusty@rustcorp.com.au>
Rusty Russell wrote:
> [Christian, Hollis, how much is this ABI breakage going to hurt you?]
>
> A recent proposed feature addition to the virtio block driver revealed
> some flaws in the API, in particular how easy it is to break big
> endian machines.
>
> 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.
--
error compiling committee.c: too many arguments to function
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next prev parent reply other threads:[~2008-04-22 11:22 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-22 3:57 [RFC PATCH] virtio: change config to guest endian Rusty Russell
2008-04-22 7:44 ` Christian Borntraeger
2008-04-22 14:40 ` Rusty Russell
2008-04-22 11:22 ` Avi Kivity [this message]
2008-04-22 14:31 ` Rusty Russell
2008-04-22 20:29 ` [kvm-devel] " Hollis Blanchard
2008-04-22 21:05 ` Rusty Russell
2008-04-22 22:08 ` Hollis Blanchard
2008-04-22 22:13 ` Anthony Liguori
2008-04-22 22:33 ` Hollis Blanchard
2008-04-22 23:53 ` Hollis Blanchard
2008-04-22 16:21 ` [kvm-devel] " Hollis Blanchard
2008-04-23 10:55 ` Christian Borntraeger
2008-04-23 12:38 ` Avi Kivity
2008-04-23 12:47 ` Christian Borntraeger
2008-04-23 15:53 ` [kvm-devel] " Rusty Russell
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