| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
Re: [Xen-devel] Re: Next steps with pv_ops for Xen
|
To: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
|
Subject: |
Re: [Xen-devel] Re: Next steps with pv_ops for Xen |
|
From: |
Derek Murray <Derek.Murray@xxxxxxxxxxxx> |
|
Date: |
Wed, 05 Dec 2007 18:29:07 +0000 |
|
Cc: |
"xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Eduardo Habkost <ehabkost@xxxxxxxxxx>, Juan Quintela <quintela@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxxxx>, Glauber de Oliveira Costa <gcosta@xxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxxxxxx>, "virtualization@xxxxxxxxxxxxxx" <virtualization@xxxxxxxxxxxxxx>, Gerd Hoffmann <kraxel@xxxxxxxxxx> |
|
Delivery-date: |
Wed, 05 Dec 2007 10:29:53 -0800 |
|
Envelope-to: |
www-data@xxxxxxxxxxxxxxxxxx |
|
In-reply-to: |
<4756E9F2.4050502@xxxxxxxx> |
|
List-help: |
<mailto:xen-devel-request@lists.xensource.com?subject=help> |
|
List-id: |
Xen developer discussion <xen-devel.lists.xensource.com> |
|
List-post: |
<mailto:xen-devel@lists.xensource.com> |
|
List-subscribe: |
<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
|
List-unsubscribe: |
<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
|
References: |
<1195682725.6726.48.camel@xxxxxxxxxxxxxxxxxxxxx> <4753FC6A.4020601@xxxxxxxxxx> <4754024C.7020905@xxxxxxxxxxxx> <47540FB8.8000106@xxxxxxxxxx> <475417E7.9070006@xxxxxxxxxxxx> <47546931.2090602@xxxxxxxxxx> <475520A1.6080909@xxxxxxxxxxxx> <475541A8.7030100@xxxxxxxxxx> <1196771999.10809.18.camel@xxxxxxxxxxxxxxxxxxxxx> <4755B158.3030008@xxxxxxxxxx> <47569014.8080008@xxxxxxxxxxxx> <4756E9F2.4050502@xxxxxxxx> |
|
Sender: |
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
|
User-agent: |
Thunderbird 2.0.0.9 (X11/20071115) |
Jeremy Fitzhardinge wrote:
Could we use one of the software-defined bits in the PTE to indicate
that this is a foreign/granted PTE, and have set_pte_at behave
differently if you pass it a pte with this bit set?
Actually, as Gerd pointed out in his answer to his own question, the use
of VM_DONTCOPY cuts out this entire code path, so we don't need to worry
about it.
Mind you, it looks like we're going to go ahead and use one of the PTE
bits to signify foreign PTEs anyway, per Keir's suggestion. Either way,
it's going to involve making Xen-specific changes to the mm code... have
you any ideas how we can either (i) get rid of the zap_pte hook in the
vm_operations_struct, or (ii) make a really compelling case to the
kernel maintainers that it really should get in?
Regards,
Derek.
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
| <Prev in Thread] |
Current Thread |
[Next in Thread>
|
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, (continued)
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Gerd Hoffmann
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Jeremy Fitzhardinge
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen,
Derek Murray <=
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Jeremy Fitzhardinge
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Geoffrey Lefebvre
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Gerd Hoffmann
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Keir Fraser
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Derek Murray
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Jeremy Fitzhardinge
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Derek Murray
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Ian Main
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Gerd Hoffmann
- Re: [Xen-devel] Re: Next steps with pv_ops for Xen, Gerd Hoffmann
|
|
|
| |
|
Home