Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-18 Thread Ian Campbell
On Wed, 2015-03-18 at 11:59 +0100, Juergen Gross wrote: > > Is there not an ABI change somewhere else relating to the exposure of > > the cr3+vaddr+size? If so why is it not in this patch? > > Commit 50bd1f0825339dfacde471df7664729216fc46e3 > > > Ideally whichever file which needs to change in x

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-18 Thread Juergen Gross
On 03/18/2015 10:59 AM, Ian Campbell wrote: On Tue, 2015-03-17 at 06:50 +0100, Juergen Gross wrote: On 03/04/2015 12:41 PM, Ian Campbell wrote: On Wed, 2015-03-04 at 12:22 +0100, Juergen Gross wrote: It would either be used like intended, Which is how? That is what is really missing here. S

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-18 Thread Ian Campbell
On Tue, 2015-03-17 at 06:50 +0100, Juergen Gross wrote: > On 03/04/2015 12:41 PM, Ian Campbell wrote: > > On Wed, 2015-03-04 at 12:22 +0100, Juergen Gross wrote: > >> It would either be used like intended, > > > > Which is how? That is what is really missing here. > > > > So far this appears to be

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-16 Thread Juergen Gross
On 03/04/2015 12:41 PM, Ian Campbell wrote: On Wed, 2015-03-04 at 12:22 +0100, Juergen Gross wrote: It would either be used like intended, Which is how? That is what is really missing here. So far this appears to be a bit which enables some as yet unspecified[0] behaviour in one particular OS

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread Ian Campbell
On Wed, 2015-03-04 at 12:22 +0100, Juergen Gross wrote: > It would either be used like intended, Which is how? That is what is really missing here. So far this appears to be a bit which enables some as yet unspecified[0] behaviour in one particular OS kernel with some as yet undiscussed potential

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread Juergen Gross
On 03/04/2015 12:18 PM, Tim Deegan wrote: At 10:52 + on 04 Mar (1425462776), Ian Campbell wrote: On Wed, 2015-03-04 at 11:20 +0100, Juergen Gross wrote: I'd like to do an appropriate change in xl, but I've been told this would make sense only for migration protocol V2. OTOH I don't want to

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread Tim Deegan
At 10:52 + on 04 Mar (1425462776), Ian Campbell wrote: > On Wed, 2015-03-04 at 11:20 +0100, Juergen Gross wrote: > > I'd like to do an appropriate change in xl, but I've been told this > > would make sense only for migration protocol V2. OTOH I don't want to > > wait for an undefined amount of

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread David Vrabel
On 04/03/15 11:09, Juergen Gross wrote: > On 03/04/2015 11:59 AM, David Vrabel wrote: >> On 04/03/15 10:20, Juergen Gross wrote: >>> >>> I could, of course, wait with the flag bit until xl is ready and post >>> another kernel patch then. Unfortunately this would delay Linux support >>> for automati

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread Juergen Gross
On 03/04/2015 11:59 AM, David Vrabel wrote: On 04/03/15 10:20, Juergen Gross wrote: I could, of course, wait with the flag bit until xl is ready and post another kernel patch then. Unfortunately this would delay Linux support for automatically be able to run as a pv-domain >500GB further, so I

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread David Vrabel
On 04/03/15 10:20, Juergen Gross wrote: > > I could, of course, wait with the flag bit until xl is ready and post > another kernel patch then. Unfortunately this would delay Linux support > for automatically be able to run as a pv-domain >500GB further, so I > strongly recommend accepting the inte

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread Ian Campbell
On Wed, 2015-03-04 at 11:20 +0100, Juergen Gross wrote: > On 03/04/2015 11:06 AM, Ian Campbell wrote: > > On Wed, 2015-03-04 at 09:42 +, Jan Beulich wrote: > > On 04.03.15 at 10:35, wrote: > >>> On Wed, 2015-03-04 at 08:58 +, Jan Beulich wrote: > >>> On 03.03.15 at 11:32, wrote: >

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread Juergen Gross
On 03/04/2015 11:06 AM, Ian Campbell wrote: On Wed, 2015-03-04 at 09:42 +, Jan Beulich wrote: On 04.03.15 at 10:35, wrote: On Wed, 2015-03-04 at 08:58 +, Jan Beulich wrote: On 03.03.15 at 11:32, wrote: On 03/03/2015 11:27 AM, Jan Beulich wrote: On 03.03.15 at 10:29, <"jgr...@suse.c

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread Ian Campbell
On Wed, 2015-03-04 at 09:42 +, Jan Beulich wrote: > >>> On 04.03.15 at 10:35, wrote: > > On Wed, 2015-03-04 at 08:58 +, Jan Beulich wrote: > >> >>> On 03.03.15 at 11:32, wrote: > >> > On 03/03/2015 11:27 AM, Jan Beulich wrote: > >> > On 03.03.15 at 10:29, <"jgr...@suse.com".non-mime.i

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread Jan Beulich
>>> On 04.03.15 at 10:35, wrote: > On Wed, 2015-03-04 at 08:58 +, Jan Beulich wrote: >> >>> On 03.03.15 at 11:32, wrote: >> > On 03/03/2015 11:27 AM, Jan Beulich wrote: >> > On 03.03.15 at 10:29, <"jgr...@suse.com".non-mime.internet> wrote: >> >>> In order to indicate the Xen tools capabi

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread Ian Campbell
On Wed, 2015-03-04 at 08:58 +, Jan Beulich wrote: > >>> On 03.03.15 at 11:32, wrote: > > On 03/03/2015 11:27 AM, Jan Beulich wrote: > > On 03.03.15 at 10:29, <"jgr...@suse.com".non-mime.internet> wrote: > >>> In order to indicate the Xen tools capability to support the virtual > >>> mapped

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-04 Thread Jan Beulich
>>> On 03.03.15 at 11:32, wrote: > On 03/03/2015 11:27 AM, Jan Beulich wrote: > On 03.03.15 at 10:29, <"jgr...@suse.com".non-mime.internet> wrote: >>> In order to indicate the Xen tools capability to support the virtual >>> mapped linear p2m list instead the 3 level mfn tree add a flag to the

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-03 Thread Jan Beulich
>>> On 03.03.15 at 12:00, wrote: > On 03/03/2015 11:52 AM, Jan Beulich wrote: > On 03.03.15 at 11:32, wrote: >>> On 03/03/2015 11:27 AM, Jan Beulich wrote: Also I'm not particularly happy with the name, as it suggests to be a statement about the initial P2M the guest gets handed - y

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-03 Thread Juergen Gross
On 03/03/2015 11:52 AM, Jan Beulich wrote: On 03.03.15 at 11:32, wrote: On 03/03/2015 11:27 AM, Jan Beulich wrote: Also I'm not particularly happy with the name, as it suggests to be a statement about the initial P2M the guest gets handed - yet that is always virtually mapped. SIF_PERMANENT_VI

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-03 Thread Jan Beulich
>>> On 03.03.15 at 11:32, wrote: > On 03/03/2015 11:27 AM, Jan Beulich wrote: >> Also I'm not particularly happy with the name, as it suggests to be >> a statement about the initial P2M the guest gets handed - yet that >> is always virtually mapped. SIF_PERMANENT_VIRT_P2M is getting a >> little lo

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-03 Thread Juergen Gross
On 03/03/2015 11:27 AM, Jan Beulich wrote: On 03.03.15 at 10:29, <"jgr...@suse.com".non-mime.internet> wrote: In order to indicate the Xen tools capability to support the virtual mapped linear p2m list instead the 3 level mfn tree add a flag to the start_info page. Signed-off-by: Juergen Gross

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-03 Thread Jan Beulich
>>> On 03.03.15 at 10:29, <"jgr...@suse.com".non-mime.internet> wrote: > In order to indicate the Xen tools capability to support the virtual > mapped linear p2m list instead the 3 level mfn tree add a flag to the > start_info page. > > Signed-off-by: Juergen Gross > --- > xen/include/public/xen

Re: [Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-03 Thread Andrew Cooper
On 03/03/15 09:29, Juergen Gross wrote: > In order to indicate the Xen tools capability to support the virtual > mapped linear p2m list instead the 3 level mfn tree add a flag to the > start_info page. > > Signed-off-by: Juergen Gross Reviewed-by: Andrew Cooper Much more simple! > --- > xen/i

[Xen-devel] [PATCH V2] Add flag to start info regarding virtual mapped p2m list

2015-03-03 Thread Juergen Gross
In order to indicate the Xen tools capability to support the virtual mapped linear p2m list instead the 3 level mfn tree add a flag to the start_info page. Signed-off-by: Juergen Gross --- xen/include/public/xen.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/xen/include/public/xen.h b/x