On Wed, Jul 22, 2020 at 12:17:26PM +0100, Julien Grall wrote:
>
>
> On 22/07/2020 12:10, Roger Pau Monné wrote:
> > On Wed, Jul 22, 2020 at 11:47:18AM +0100, Julien Grall wrote:
> > > >
> > > > You can still use the map-on-fault behaviour as above, but I would
> > > > recommend that you try to l
On 22/07/2020 12:10, Roger Pau Monné wrote:
On Wed, Jul 22, 2020 at 11:47:18AM +0100, Julien Grall wrote:
You can still use the map-on-fault behaviour as above, but I would
recommend that you try to limit the number of hypercalls issued.
Having to issue a single hypercall for each page fault
On Wed, Jul 22, 2020 at 11:47:18AM +0100, Julien Grall wrote:
> Hi Roger,
>
> On 22/07/2020 09:21, Roger Pau Monné wrote:
> > On Tue, Jul 21, 2020 at 10:12:40PM +0100, Julien Grall wrote:
> > > Hi Oleksandr,
> > >
> > > On 21/07/2020 19:16, Oleksandr wrote:
> > > >
> > > > On 21.07.20 17:27, Jul
Hi Roger,
On 22/07/2020 09:21, Roger Pau Monné wrote:
On Tue, Jul 21, 2020 at 10:12:40PM +0100, Julien Grall wrote:
Hi Oleksandr,
On 21/07/2020 19:16, Oleksandr wrote:
On 21.07.20 17:27, Julien Grall wrote:
On a similar topic, I am a bit surprised you didn't encounter memory
exhaustion when
On Tue, Jul 21, 2020 at 10:12:40PM +0100, Julien Grall wrote:
> Hi Oleksandr,
>
> On 21/07/2020 19:16, Oleksandr wrote:
> >
> > On 21.07.20 17:27, Julien Grall wrote:
> > > On a similar topic, I am a bit surprised you didn't encounter memory
> > > exhaustion when trying to use virtio. Because on
Hi Oleksandr,
On 21/07/2020 19:16, Oleksandr wrote:
On 21.07.20 17:27, Julien Grall wrote:
On a similar topic, I am a bit surprised you didn't encounter memory
exhaustion when trying to use virtio. Because on how Linux currently
works (see XSA-300), the backend domain as to have a least as mu
On 21.07.20 17:27, Julien Grall wrote:
Hi,
Hello
On a similar topic, I am a bit surprised you didn't encounter memory
exhaustion when trying to use virtio. Because on how Linux currently
works (see XSA-300), the backend domain as to have a least as much RAM
as the domain it serves. For
On 21.07.20 17:27, Julien Grall wrote:
Hi,
Hello Julien
On 17/07/2020 19:34, Oleksandr wrote:
On 17.07.20 18:00, Roger Pau Monné wrote:
requires
some implementation to forward guest MMIO access to a device model.
And as
it
turned out the Xen on x86 contains most of the pieces to be a
On 21/07/2020 17:09, Oleksandr wrote:
>
> On 21.07.20 17:58, André Przywara wrote:
>> On 21/07/2020 15:52, Oleksandr wrote:
>>> On 21.07.20 17:32, André Przywara wrote:
On 21/07/2020 14:43, Julien Grall wrote:
>>> Hello Andre, Julien
>>>
>>>
> (+ Andre)
>
> Hi Oleksandr,
>
>>>
On Tue, 21 Jul 2020, Julien Grall wrote:
> Hi Alex,
>
> Thank you for your feedback!
>
> On 21/07/2020 15:15, Alex Bennée wrote:
> > Julien Grall writes:
> >
> > > (+ Andree for the vGIC).
> > >
> > > Hi Stefano,
> > >
> > > On 20/07/2020 21:38, Stefano Stabellini wrote:
> > > > On Fri, 17 Ju
On Tue, 21 Jul 2020, Alex Bennée wrote:
> Julien Grall writes:
>
> > Hi Stefano,
> >
> > On 20/07/2020 21:37, Stefano Stabellini wrote:
> >> On Mon, 20 Jul 2020, Roger Pau Monné wrote:
> >>> On Mon, Jul 20, 2020 at 10:40:40AM +0100, Julien Grall wrote:
>
>
> On 20/07/2020 10:17, Ro
On 21.07.20 17:58, André Przywara wrote:
On 21/07/2020 15:52, Oleksandr wrote:
On 21.07.20 17:32, André Przywara wrote:
On 21/07/2020 14:43, Julien Grall wrote:
Hello Andre, Julien
(+ Andre)
Hi Oleksandr,
On 21/07/2020 13:26, Oleksandr wrote:
On 20.07.20 23:38, Stefano Stabellini wrote
On 21/07/2020 15:52, Oleksandr wrote:
>
> On 21.07.20 17:32, André Przywara wrote:
>> On 21/07/2020 14:43, Julien Grall wrote:
>
> Hello Andre, Julien
>
>
>>> (+ Andre)
>>>
>>> Hi Oleksandr,
>>>
>>> On 21/07/2020 13:26, Oleksandr wrote:
On 20.07.20 23:38, Stefano Stabellini wrote:
> Fo
On 21.07.20 17:32, André Przywara wrote:
On 21/07/2020 14:43, Julien Grall wrote:
Hello Andre, Julien
(+ Andre)
Hi Oleksandr,
On 21/07/2020 13:26, Oleksandr wrote:
On 20.07.20 23:38, Stefano Stabellini wrote:
For instance, what's your take on notifications with virtio-mmio? How
are the
Hi Alex,
Thank you for your feedback!
On 21/07/2020 15:15, Alex Bennée wrote:
Julien Grall writes:
(+ Andree for the vGIC).
Hi Stefano,
On 20/07/2020 21:38, Stefano Stabellini wrote:
On Fri, 17 Jul 2020, Oleksandr wrote:
*A few word about solution:*
As it was mentioned at [1], in order t
On 21/07/2020 14:43, Julien Grall wrote:
> (+ Andre)
>
> Hi Oleksandr,
>
> On 21/07/2020 13:26, Oleksandr wrote:
>> On 20.07.20 23:38, Stefano Stabellini wrote:
>>> For instance, what's your take on notifications with virtio-mmio? How
>>> are they modelled today? Are they good enough or do we nee
Hi,
On 17/07/2020 19:34, Oleksandr wrote:
On 17.07.20 18:00, Roger Pau Monné wrote:
requires
some implementation to forward guest MMIO access to a device model.
And as
it
turned out the Xen on x86 contains most of the pieces to be able to
use that
transport (via existing IOREQ concept). Jul
Julien Grall writes:
> (+ Andree for the vGIC).
>
> Hi Stefano,
>
> On 20/07/2020 21:38, Stefano Stabellini wrote:
>> On Fri, 17 Jul 2020, Oleksandr wrote:
> *A few word about solution:*
> As it was mentioned at [1], in order to implement virtio-mmio Xen on Arm
Any plans for virtio
Julien Grall writes:
> Hi Stefano,
>
> On 20/07/2020 21:37, Stefano Stabellini wrote:
>> On Mon, 20 Jul 2020, Roger Pau Monné wrote:
>>> On Mon, Jul 20, 2020 at 10:40:40AM +0100, Julien Grall wrote:
On 20/07/2020 10:17, Roger Pau Monné wrote:
> On Fri, Jul 17, 2020 at 09:34:1
(+ Andre)
Hi Oleksandr,
On 21/07/2020 13:26, Oleksandr wrote:
On 20.07.20 23:38, Stefano Stabellini wrote:
For instance, what's your take on notifications with virtio-mmio? How
are they modelled today? Are they good enough or do we need MSIs?
Notifications are sent from device (backend) to t
On Tue, Jul 21, 2020 at 02:32:38PM +0100, Julien Grall wrote:
> Hi Roger,
>
> On 21/07/2020 14:25, Roger Pau Monné wrote:
> > On Tue, Jul 21, 2020 at 01:31:48PM +0100, Julien Grall wrote:
> > > Hi Stefano,
> > >
> > > On 20/07/2020 21:37, Stefano Stabellini wrote:
> > > > On Mon, 20 Jul 2020, Rog
Hi Roger,
On 21/07/2020 14:25, Roger Pau Monné wrote:
On Tue, Jul 21, 2020 at 01:31:48PM +0100, Julien Grall wrote:
Hi Stefano,
On 20/07/2020 21:37, Stefano Stabellini wrote:
On Mon, 20 Jul 2020, Roger Pau Monné wrote:
On Mon, Jul 20, 2020 at 10:40:40AM +0100, Julien Grall wrote:
On 20/07
On Tue, Jul 21, 2020 at 01:31:48PM +0100, Julien Grall wrote:
> Hi Stefano,
>
> On 20/07/2020 21:37, Stefano Stabellini wrote:
> > On Mon, 20 Jul 2020, Roger Pau Monné wrote:
> > > On Mon, Jul 20, 2020 at 10:40:40AM +0100, Julien Grall wrote:
> > > >
> > > >
> > > > On 20/07/2020 10:17, Roger Pa
(+ Andree for the vGIC).
Hi Stefano,
On 20/07/2020 21:38, Stefano Stabellini wrote:
On Fri, 17 Jul 2020, Oleksandr wrote:
*A few word about solution:*
As it was mentioned at [1], in order to implement virtio-mmio Xen on Arm
Any plans for virtio-pci? Arm seems to be moving to the PCI bus, and
On 20.07.20 23:40, Stefano Stabellini wrote:
Hello Stefano
On Mon, 20 Jul 2020, Roger Pau Monné wrote:
On Mon, Jul 20, 2020 at 01:56:51PM +0300, Oleksandr wrote:
On 20.07.20 12:17, Roger Pau Monné wrote:
On Fri, Jul 17, 2020 at 09:34:14PM +0300, Oleksandr wrote:
On 17.07.20 18:00, Roger P
Hi Stefano,
On 20/07/2020 21:37, Stefano Stabellini wrote:
On Mon, 20 Jul 2020, Roger Pau Monné wrote:
On Mon, Jul 20, 2020 at 10:40:40AM +0100, Julien Grall wrote:
On 20/07/2020 10:17, Roger Pau Monné wrote:
On Fri, Jul 17, 2020 at 09:34:14PM +0300, Oleksandr wrote:
On 17.07.20 18:00, Rog
On 20.07.20 23:38, Stefano Stabellini wrote:
Hello Stefano
On Fri, 17 Jul 2020, Oleksandr wrote:
*A few word about solution:*
As it was mentioned at [1], in order to implement virtio-mmio Xen on Arm
Any plans for virtio-pci? Arm seems to be moving to the PCI bus, and
it would be very intere
On Mon, 20 Jul 2020, Roger Pau Monné wrote:
> On Mon, Jul 20, 2020 at 01:56:51PM +0300, Oleksandr wrote:
> > On 20.07.20 12:17, Roger Pau Monné wrote:
> > > On Fri, Jul 17, 2020 at 09:34:14PM +0300, Oleksandr wrote:
> > > > On 17.07.20 18:00, Roger Pau Monné wrote:
> > > > > On Fri, Jul 17, 2020 at
On Mon, 20 Jul 2020, Roger Pau Monné wrote:
> On Mon, Jul 20, 2020 at 10:40:40AM +0100, Julien Grall wrote:
> >
> >
> > On 20/07/2020 10:17, Roger Pau Monné wrote:
> > > On Fri, Jul 17, 2020 at 09:34:14PM +0300, Oleksandr wrote:
> > > > On 17.07.20 18:00, Roger Pau Monné wrote:
> > > > > On Fri,
On Fri, 17 Jul 2020, Oleksandr wrote:
> > > *A few word about solution:*
> > > As it was mentioned at [1], in order to implement virtio-mmio Xen on Arm
> > Any plans for virtio-pci? Arm seems to be moving to the PCI bus, and
> > it would be very interesting from a x86 PoV, as I don't think
> > virt
On Mon, Jul 20, 2020 at 01:56:51PM +0300, Oleksandr wrote:
> On 20.07.20 12:17, Roger Pau Monné wrote:
> > On Fri, Jul 17, 2020 at 09:34:14PM +0300, Oleksandr wrote:
> > > On 17.07.20 18:00, Roger Pau Monné wrote:
> > > > On Fri, Jul 17, 2020 at 05:11:02PM +0300, Oleksandr Tyshchenko wrote:
> > > T
On 20.07.20 12:17, Roger Pau Monné wrote:
Hello Roger
On Fri, Jul 17, 2020 at 09:34:14PM +0300, Oleksandr wrote:
On 17.07.20 18:00, Roger Pau Monné wrote:
On Fri, Jul 17, 2020 at 05:11:02PM +0300, Oleksandr Tyshchenko wrote:
requires
some implementation to forward guest MMIO access to a de
On Mon, Jul 20, 2020 at 10:40:40AM +0100, Julien Grall wrote:
>
>
> On 20/07/2020 10:17, Roger Pau Monné wrote:
> > On Fri, Jul 17, 2020 at 09:34:14PM +0300, Oleksandr wrote:
> > > On 17.07.20 18:00, Roger Pau Monné wrote:
> > > > On Fri, Jul 17, 2020 at 05:11:02PM +0300, Oleksandr Tyshchenko wro
On 20/07/2020 10:17, Roger Pau Monné wrote:
On Fri, Jul 17, 2020 at 09:34:14PM +0300, Oleksandr wrote:
On 17.07.20 18:00, Roger Pau Monné wrote:
On Fri, Jul 17, 2020 at 05:11:02PM +0300, Oleksandr Tyshchenko wrote:
requires
some implementation to forward guest MMIO access to a device model.
On Fri, Jul 17, 2020 at 09:34:14PM +0300, Oleksandr wrote:
> On 17.07.20 18:00, Roger Pau Monné wrote:
> > On Fri, Jul 17, 2020 at 05:11:02PM +0300, Oleksandr Tyshchenko wrote:
> > > requires
> > > some implementation to forward guest MMIO access to a device model. And as
> > > it
> > > turned out
On 17.07.20 18:00, Roger Pau Monné wrote:
Hello,
Hello Roger
I'm very happy to see this proposal, as I think having proper (1st
class) VirtIO support on Xen is crucial to our survival. Almost all
OSes have VirtIO frontends, while the same can't be said about Xen PV
frontends. It would also
Hello,
I'm very happy to see this proposal, as I think having proper (1st
class) VirtIO support on Xen is crucial to our survival. Almost all
OSes have VirtIO frontends, while the same can't be said about Xen PV
frontends. It would also allow us to piggyback on any new VirtIO
devices without havin
Hello all.
We would like to resume Virtio in Xen on Arm activities. You can find some
background at [1] and Virtio specification at [2].
*A few words about importance:*
There is an increasing interest, I would even say, the requirement to have
flexible, generic and standardized cross-hypervisor s
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