On Wed, Sep 26, 2018 at 11:32:38AM +0100, Julien Grall wrote:
> Hi,
>
> On 09/26/2018 10:14 AM, Paul Durrant wrote:
> > > -Original Message-
> > > From: Jan Beulich [mailto:jbeul...@suse.com]
> > > Sent: 26 September 2018 09:09
> > > To: Julien Grall ; Paul Durrant
> > >
> > > Cc: Andrew
Hi Paul,
Thank you for your help understanding the resource code.
On 09/27/2018 11:46 AM, Paul Durrant wrote:
If the DM domain is not PV then currently it must be the hardware domain to be
able to map resources. Hence we trust it not to descrease_reservation IOREQ
pages.
Can you point me to
> -Original Message-
> From: Julien Grall [mailto:julien.gr...@arm.com]
> Sent: 27 September 2018 11:31
> To: Paul Durrant ; 'Jan Beulich'
>
> Cc: Andrew Cooper ; Roger Pau Monne
> ; Stefano Stabellini ; xen-
> devel
> Subject: Re: IOREQ server on Arm
>
> Hi Paul,
>
> On 09/27/2018 11:1
Hi Paul,
On 09/27/2018 11:16 AM, Paul Durrant wrote:
-Original Message-
From: Julien Grall [mailto:julien.gr...@arm.com]
Sent: 27 September 2018 10:42
To: Paul Durrant ; 'Jan Beulich'
Cc: Andrew Cooper ; Roger Pau Monne
; Stefano Stabellini ; xen-
devel
Subject: Re: IOREQ server on Arm
> -Original Message-
> From: Julien Grall [mailto:julien.gr...@arm.com]
> Sent: 27 September 2018 10:42
> To: Paul Durrant ; 'Jan Beulich'
>
> Cc: Andrew Cooper ; Roger Pau Monne
> ; Stefano Stabellini ; xen-
> devel
> Subject: Re: IOREQ server on Arm
>
> Hi Paul,
>
> On 09/27/2018 09:3
Hi Paul,
On 09/27/2018 09:38 AM, Paul Durrant wrote:
-Original Message-
From: Julien Grall [mailto:julien.gr...@arm.com]
Sent: 26 September 2018 22:32
To: Paul Durrant ; 'Jan Beulich'
Cc: Andrew Cooper ; Roger Pau Monne
; Stefano Stabellini ; xen-
devel
Subject: Re: IOREQ server on Arm
> -Original Message-
> From: Julien Grall [mailto:julien.gr...@arm.com]
> Sent: 26 September 2018 22:32
> To: Paul Durrant ; 'Jan Beulich'
>
> Cc: Andrew Cooper ; Roger Pau Monne
> ; Stefano Stabellini ; xen-
> devel
> Subject: Re: IOREQ server on Arm
>
> Hi Paul,
>
> On 09/26/2018 01:0
>>> On 26.09.18 at 23:32, wrote:
> This brings me to the next question. Do you expect set_special_p2m_entry
> to take a reference on the page?
>
> If not, we may run into some troubles because AFAICT you can map twice
> the ioreq page in a guest but reference will only be taken on the
> alloca
Hi Paul,
On 09/26/2018 01:01 PM, Paul Durrant wrote:
-Original Message-
From: Jan Beulich [mailto:jbeul...@suse.com]
Sent: 26 September 2018 12:57
To: Paul Durrant
Cc: Julien Grall ; Andrew Cooper
; Roger Pau Monne ;
Stefano Stabellini ; xen-devel
Subject: RE: IOREQ server on Arm
On
> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: 26 September 2018 12:57
> To: Paul Durrant
> Cc: Julien Grall ; Andrew Cooper
> ; Roger Pau Monne ;
> Stefano Stabellini ; xen-devel de...@lists.xenproject.org>
> Subject: RE: IOREQ server on Arm
>
> >>> On 26.09
>>> On 26.09.18 at 13:02, wrote:
> --- a/xen/common/memory.c
> +++ b/xen/common/memory.c
> @@ -1105,8 +1105,11 @@ static int acquire_resource(
>
> for ( i = 0; !rc && i < xmar.nr_frames; i++ )
> {
> -rc = set_foreign_p2m_entry(currd, gfn_list[i],
> -
> -Original Message-
> From: Julien Grall [mailto:julien.gr...@arm.com]
> Sent: 26 September 2018 12:01
> To: Paul Durrant ; Jan Beulich
>
> Cc: Andrew Cooper ; Roger Pau Monne
> ; Stefano Stabellini ; xen-
> devel
> Subject: Re: IOREQ server on Arm
>
> Hi Paul,
>
> On 09/26/2018 11:51
> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: 26 September 2018 11:58
> To: Julien Grall ; Paul Durrant
>
> Cc: Andrew Cooper ; Roger Pau Monne
> ; Stefano Stabellini ; xen-
> devel
> Subject: RE: IOREQ server on Arm
>
> >>> On 26.09.18 at 12:51, wrote:
> >
Hi Paul,
On 09/26/2018 11:51 AM, Paul Durrant wrote:
-Original Message-
From: Julien Grall [mailto:julien.gr...@arm.com]
Sent: 26 September 2018 11:41
To: Jan Beulich ; Paul Durrant
Cc: Andrew Cooper ; Roger Pau Monne
; Stefano Stabellini ; xen-
devel
Subject: Re: IOREQ server on Arm
>>> On 26.09.18 at 12:51, wrote:
>> -Original Message-
>> From: Julien Grall [mailto:julien.gr...@arm.com]
>> Sent: 26 September 2018 11:41
>> To: Jan Beulich ; Paul Durrant
>>
>> Cc: Andrew Cooper ; Roger Pau Monne
>> ; Stefano Stabellini ; xen-
>> devel
>> Subject: Re: IOREQ server on
> -Original Message-
> From: Julien Grall [mailto:julien.gr...@arm.com]
> Sent: 26 September 2018 11:41
> To: Jan Beulich ; Paul Durrant
>
> Cc: Andrew Cooper ; Roger Pau Monne
> ; Stefano Stabellini ; xen-
> devel
> Subject: Re: IOREQ server on Arm
>
> Hi Jan,
>
> On 09/26/2018 09:08 A
> -Original Message-
> From: Julien Grall [mailto:julien.gr...@arm.com]
> Sent: 26 September 2018 11:33
> To: Paul Durrant ; 'Jan Beulich'
>
> Cc: Andrew Cooper ; Roger Pau Monne
> ; Stefano Stabellini ; xen-
> devel
> Subject: Re: IOREQ server on Arm
>
> Hi,
>
> On 09/26/2018 10:14 AM,
Hi Jan,
On 09/26/2018 09:08 AM, Jan Beulich wrote:
On 26.09.18 at 00:39, wrote:
Hi Paul,
I am looking at porting the IOREQ server infrastructure on Arm. I didn't
need much modification to make it run for Arm. Although, the
implementation could be simplified over the x86 implementation.
I not
On 26/09/18 11:32, Julien Grall wrote:
> Hi,
>
> On 09/26/2018 10:14 AM, Paul Durrant wrote:
>>> -Original Message-
>>> From: Jan Beulich [mailto:jbeul...@suse.com]
>>> Sent: 26 September 2018 09:09
>>> To: Julien Grall ; Paul Durrant
>>>
>>> Cc: Andrew Cooper ; Roger Pau Monne
>>> ; Stefa
Hi,
On 09/26/2018 10:14 AM, Paul Durrant wrote:
-Original Message-
From: Jan Beulich [mailto:jbeul...@suse.com]
Sent: 26 September 2018 09:09
To: Julien Grall ; Paul Durrant
Cc: Andrew Cooper ; Roger Pau Monne
; Stefano Stabellini ; xen-
devel
Subject: Re: IOREQ server on Arm
On 26.0
> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: 26 September 2018 09:09
> To: Julien Grall ; Paul Durrant
>
> Cc: Andrew Cooper ; Roger Pau Monne
> ; Stefano Stabellini ; xen-
> devel
> Subject: Re: IOREQ server on Arm
>
> >>> On 26.09.18 at 00:39, wrote:
> >
>>> On 26.09.18 at 00:39, wrote:
> Hi Paul,
>
> I am looking at porting the IOREQ server infrastructure on Arm. I didn't
> need much modification to make it run for Arm. Although, the
> implementation could be simplified over the x86 implementation.
>
> I noticed some issue while trying to imp
Hi Paul,
I am looking at porting the IOREQ server infrastructure on Arm. I didn't
need much modification to make it run for Arm. Although, the
implementation could be simplified over the x86 implementation.
I noticed some issue while trying to implement the hypercall
XENMEM_acquire_resource.
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