On 10/12/2023 10:38 PM, Michael S. Tsirkin wrote:
On Thu, Oct 12, 2023 at 06:49:51PM +0800, Zhu, Lingshan wrote:
For PCI based configuration, like MSI, we need to fetch from config space
anyway.
For others like dirty page, we can store the bitmap in host memory, and use
PASID for isolation.
On 10/12/2023 7:12 PM, Michael S. Tsirkin wrote:
On Thu, Oct 12, 2023 at 06:49:51PM +0800, Zhu, Lingshan wrote:
On 10/12/2023 5:59 PM, Michael S. Tsirkin wrote:
On Wed, Oct 11, 2023 at 06:38:32PM +0800, Zhu, Lingshan wrote:
On 10/11/2023 6:20 PM, Michael S. Tsirkin wrote:
On Mon, Oct 09,
On Thu, Oct 12, 2023 at 06:49:51PM +0800, Zhu, Lingshan wrote:
> For PCI based configuration, like MSI, we need to fetch from config space
> anyway.
> For others like dirty page, we can store the bitmap in host memory, and use
> PASID for isolation.
Ok. So how a about a simple interface along the
On Thu, Oct 12, 2023 at 06:57:35PM +0800, Zhu, Lingshan wrote:
>
>
> On 10/11/2023 7:52 PM, Parav Pandit wrote:
> > > From: Zhu, Lingshan
> > > Sent: Wednesday, October 11, 2023 4:09 PM
> > > I am sure I have not ignored any questions.
> > What about below one?
> >
> > https://lore.kernel.org/v
On Thu, Oct 12, 2023 at 06:49:51PM +0800, Zhu, Lingshan wrote:
>
>
> On 10/12/2023 5:59 PM, Michael S. Tsirkin wrote:
> > On Wed, Oct 11, 2023 at 06:38:32PM +0800, Zhu, Lingshan wrote:
> > >
> > > On 10/11/2023 6:20 PM, Michael S. Tsirkin wrote:
> > > > On Mon, Oct 09, 2023 at 06:01:42PM +0800,
On 10/11/2023 7:52 PM, Parav Pandit wrote:
From: Zhu, Lingshan
Sent: Wednesday, October 11, 2023 4:09 PM
I am sure I have not ignored any questions.
What about below one?
https://lore.kernel.org/virtio-dev/20230921011221-mutt-send-email-...@kernel.org/
This is to discuss a attacking model,
On 10/12/2023 5:59 PM, Michael S. Tsirkin wrote:
On Wed, Oct 11, 2023 at 06:38:32PM +0800, Zhu, Lingshan wrote:
On 10/11/2023 6:20 PM, Michael S. Tsirkin wrote:
On Mon, Oct 09, 2023 at 06:01:42PM +0800, Zhu, Lingshan wrote:
On 9/27/2023 11:40 PM, Michael S. Tsirkin wrote:
On Wed, Sep 27,
On Mon, Oct 09, 2023 at 04:49:33PM +0800, Jason Wang wrote:
> > If something is needed for debug please proceed to add such debug interface.
>
> Most debugging is simply the dumping of device states so I don't know
> what you want to say here.
Donnu about Parav but I want to say that I'd like to
On Wed, Oct 11, 2023 at 06:38:32PM +0800, Zhu, Lingshan wrote:
>
>
> On 10/11/2023 6:20 PM, Michael S. Tsirkin wrote:
> > On Mon, Oct 09, 2023 at 06:01:42PM +0800, Zhu, Lingshan wrote:
> > >
> > > On 9/27/2023 11:40 PM, Michael S. Tsirkin wrote:
> > > > On Wed, Sep 27, 2023 at 04:20:01PM +0800,
> From: Zhu, Lingshan
> Sent: Wednesday, October 11, 2023 4:09 PM
> I am sure I have not ignored any questions.
What about below one?
https://lore.kernel.org/virtio-dev/20230921011221-mutt-send-email-...@kernel.org/
On 10/11/2023 6:20 PM, Michael S. Tsirkin wrote:
On Mon, Oct 09, 2023 at 06:01:42PM +0800, Zhu, Lingshan wrote:
On 9/27/2023 11:40 PM, Michael S. Tsirkin wrote:
On Wed, Sep 27, 2023 at 04:20:01PM +0800, Zhu, Lingshan wrote:
On 9/26/2023 6:48 PM, Michael S. Tsirkin wrote:
On Tue, Sep 26, 2
On Mon, Oct 09, 2023 at 06:01:42PM +0800, Zhu, Lingshan wrote:
>
>
> On 9/27/2023 11:40 PM, Michael S. Tsirkin wrote:
> > On Wed, Sep 27, 2023 at 04:20:01PM +0800, Zhu, Lingshan wrote:
> > >
> > > On 9/26/2023 6:48 PM, Michael S. Tsirkin wrote:
> > > > On Tue, Sep 26, 2023 at 05:25:42PM +0800, Z
> From: Zhu, Lingshan
> Sent: Monday, October 9, 2023 3:36 PM
>
> On 9/27/2023 6:39 PM, Parav Pandit wrote:
> >
> >> From: Zhu, Lingshan
> >> Sent: Wednesday, September 27, 2023 1:50 PM I see his proposal can:
> >> 1) meet some customers requirements without nested and bare-metal
> >> 2) align
On 9/27/2023 6:39 PM, Parav Pandit wrote:
From: Zhu, Lingshan
Sent: Wednesday, September 27, 2023 1:50 PM
I see his proposal can:
1) meet some customers requirements without nested and bare-metal
2) align with Nvidia production
Slightly inaccurate.
The work produced is for the virtio spec
On 9/27/2023 11:40 PM, Michael S. Tsirkin wrote:
On Wed, Sep 27, 2023 at 04:20:01PM +0800, Zhu, Lingshan wrote:
On 9/26/2023 6:48 PM, Michael S. Tsirkin wrote:
On Tue, Sep 26, 2023 at 05:25:42PM +0800, Zhu, Lingshan wrote:
We don't want to repeat the discussions, it looks like endless circ
On Tue, Sep 26, 2023 at 1:21 PM Parav Pandit wrote:
>
>
>
> > From: Jason Wang
> > Sent: Tuesday, September 26, 2023 10:07 AM
> >
> > On Tue, Sep 26, 2023 at 11:40 AM Parav Pandit wrote:
> > >
> > >
> > >
> > > > From: Jason Wang
> > > > Sent: Tuesday, September 26, 2023 8:16 AM
> > > >
> > > >
On Mon, Sep 25, 2023 at 10:41:12AM +, Parav Pandit wrote:
>
>
> > From: Jason Wang
> > Sent: Friday, September 22, 2023 8:38 AM
>
> > > Device context has no overlap.
> >
> > I can give you one example, e.g debugging.
> >
> Almost every feature needs debugging. :)
> So I am omitting it for
On Wed, Sep 27, 2023 at 04:20:01PM +0800, Zhu, Lingshan wrote:
>
>
> On 9/26/2023 6:48 PM, Michael S. Tsirkin wrote:
> > On Tue, Sep 26, 2023 at 05:25:42PM +0800, Zhu, Lingshan wrote:
> > > We don't want to repeat the discussions, it looks like endless circle with
> > > no direction.
> > OK let m
On Tue, Sep 26, 2023 at 12:37:19PM +0800, Jason Wang wrote:
> It's silly to ship a product without any debugging facilities.
The way I see it, debugging facilities ideally would be somewhat
separate from rest of the driver. For example, imagine an on-device
gateway that lets you query the internal
> From: Zhu, Lingshan
> Sent: Wednesday, September 27, 2023 1:50 PM
> I see his proposal can:
> 1) meet some customers requirements without nested and bare-metal
> 2) align with Nvidia production
Slightly inaccurate.
The work produced is for the virtio spec update for the users.
I have missed
On 9/26/2023 6:48 PM, Michael S. Tsirkin wrote:
On Tue, Sep 26, 2023 at 05:25:42PM +0800, Zhu, Lingshan wrote:
We don't want to repeat the discussions, it looks like endless circle with
no direction.
OK let me try to direct this discussion.
You guys were speaking past each other, no dialog i
On Tue, Sep 26, 2023 at 05:25:42PM +0800, Zhu, Lingshan wrote:
> We don't want to repeat the discussions, it looks like endless circle with
> no direction.
OK let me try to direct this discussion.
You guys were speaking past each other, no dialog is happening.
And as long as it goes on no progress
On 9/26/2023 2:03 PM, Parav Pandit wrote:
From: Zhu, Lingshan
Sent: Tuesday, September 26, 2023 11:07 AM
1. cover letter is missing the problem statement and use case
I only reply to this section of comments, this does not mean I agree with you on
your other statements, Instead I agree wi
> From: Zhu, Lingshan
> Sent: Tuesday, September 26, 2023 11:07 AM
> > 1. cover letter is missing the problem statement and use case
> I only reply to this section of comments, this does not mean I agree with you
> on
> your other statements, Instead I agree with Jason on his replies to you.
>
On 9/26/2023 11:40 AM, Parav Pandit wrote:
From: Jason Wang
Sent: Tuesday, September 26, 2023 8:16 AM
On Mon, Sep 25, 2023 at 6:41 PM Parav Pandit wrote:
From: Jason Wang
Sent: Friday, September 22, 2023 8:38 AM
Device context has no overlap.
I can give you one example, e.g debuggi
> From: Jason Wang
> Sent: Tuesday, September 26, 2023 10:07 AM
>
> On Tue, Sep 26, 2023 at 11:40 AM Parav Pandit wrote:
> >
> >
> >
> > > From: Jason Wang
> > > Sent: Tuesday, September 26, 2023 8:16 AM
> > >
> > > On Mon, Sep 25, 2023 at 6:41 PM Parav Pandit wrote:
> > > >
> > > >
> > > >
On Tue, Sep 26, 2023 at 11:40 AM Parav Pandit wrote:
>
>
>
> > From: Jason Wang
> > Sent: Tuesday, September 26, 2023 8:16 AM
> >
> > On Mon, Sep 25, 2023 at 6:41 PM Parav Pandit wrote:
> > >
> > >
> > >
> > > > From: Jason Wang
> > > > Sent: Friday, September 22, 2023 8:38 AM
> > >
> > > > > D
> From: Jason Wang
> Sent: Tuesday, September 26, 2023 8:16 AM
>
> On Mon, Sep 25, 2023 at 6:41 PM Parav Pandit wrote:
> >
> >
> >
> > > From: Jason Wang
> > > Sent: Friday, September 22, 2023 8:38 AM
> >
> > > > Device context has no overlap.
> > >
> > > I can give you one example, e.g debug
On Mon, Sep 25, 2023 at 6:41 PM Parav Pandit wrote:
>
>
>
> > From: Jason Wang
> > Sent: Friday, September 22, 2023 8:38 AM
>
> > > Device context has no overlap.
> >
> > I can give you one example, e.g debugging.
> >
> Almost every feature needs debugging. :)
> So I am omitting it for time being
> From: Jason Wang
> Sent: Friday, September 22, 2023 8:38 AM
> > Device context has no overlap.
>
> I can give you one example, e.g debugging.
>
Almost every feature needs debugging. :)
So I am omitting it for time being.
> >
> > Dirty page tracking has no overlap. What do you want to prof
On 9/22/2023 11:08 AM, Jason Wang wrote:
On Thu, Sep 21, 2023 at 12:19 PM Parav Pandit wrote:
From: Jason Wang
Sent: Thursday, September 21, 2023 9:39 AM
On Thu, Sep 21, 2023 at 12:01 PM Parav Pandit wrote:
From: Jason Wang
Sent: Thursday, September 21, 2023 8:48 AM
As replied in a
On Thu, Sep 21, 2023 at 6:39 PM Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Thursday, September 21, 2023 3:40 PM
> >
> > On Thu, Sep 21, 2023 at 09:17:53AM +, Parav Pandit wrote:
> > > Vdpa stack make total sense when the underlying device is not virtio and
> > hence emulat
On Thu, Sep 21, 2023 at 12:29 PM Parav Pandit wrote:
>
>
>
> > From: Jason Wang
> > Sent: Thursday, September 21, 2023 9:50 AM
>
> > Parav, I think I've clarified several times:
> >
> > migration using the admin command is probably fine in some use cases.
> >
> This is definitely, was not clear t
On Thu, Sep 21, 2023 at 12:19 PM Parav Pandit wrote:
>
>
> > From: Jason Wang
> > Sent: Thursday, September 21, 2023 9:39 AM
> >
> > On Thu, Sep 21, 2023 at 12:01 PM Parav Pandit wrote:
> > >
> > >
> > >
> > > > From: Jason Wang
> > > > Sent: Thursday, September 21, 2023 8:48 AM
> > >
> > > > A
On 9/21/2023 7:28 PM, Parav Pandit wrote:
From: Zhu, Lingshan
Sent: Thursday, September 21, 2023 3:25 PM
On 9/21/2023 5:26 PM, Parav Pandit wrote:
From: Zhu, Lingshan
Sent: Thursday, September 21, 2023 2:49 PM TDISP devices can not be
migrated for now, and the TDISP spec make clear example
On Thu, Sep 21, 2023 at 12:39:31PM +, Parav Pandit wrote:
>
> > From: Michael S. Tsirkin
> > Sent: Thursday, September 21, 2023 5:53 PM
>
> >
> > Again the thread has been side-tracked, which linux module does what is not
> > what it was talking about. By the way I wonder who decided to dr
> From: Michael S. Tsirkin
> Sent: Thursday, September 21, 2023 5:53 PM
>
> Again the thread has been side-tracked, which linux module does what is not
> what it was talking about. By the way I wonder who decided to drop virtio
> comment from this and copy virtio-dev. Guys please don't do thi
On Thu, Sep 21, 2023 at 10:39:23AM +, Parav Pandit wrote:
>
> > From: Michael S. Tsirkin
> > Sent: Thursday, September 21, 2023 3:40 PM
> >
> > On Thu, Sep 21, 2023 at 09:17:53AM +, Parav Pandit wrote:
> > > Vdpa stack make total sense when the underlying device is not virtio and
> > hen
> From: Zhu, Lingshan
> Sent: Thursday, September 21, 2023 3:25 PM
>
> On 9/21/2023 5:26 PM, Parav Pandit wrote:
> >
> >> From: Zhu, Lingshan
> >> Sent: Thursday, September 21, 2023 2:49 PM TDISP devices can not be
> >> migrated for now, and the TDISP spec make clear examples of attacking
> >>
> From: Michael S. Tsirkin
> Sent: Thursday, September 21, 2023 3:32 PM
>
> On Thu, Sep 21, 2023 at 09:17:53AM +, Parav Pandit wrote:
> >
> >
> > > From: Michael S. Tsirkin
> > > Sent: Thursday, September 21, 2023 1:41 PM
> >
> > > > I mean to say,
> > > > Virtio spec has not achieved medi
> From: Michael S. Tsirkin
> Sent: Thursday, September 21, 2023 3:40 PM
>
> On Thu, Sep 21, 2023 at 09:17:53AM +, Parav Pandit wrote:
> > Vdpa stack make total sense when the underlying device is not virtio and
> hence emulation.
>
> Which linux framework is used is kind of beside the poin
On Thu, Sep 21, 2023 at 09:17:53AM +, Parav Pandit wrote:
> Vdpa stack make total sense when the underlying device is not virtio and
> hence emulation.
Which linux framework is used is kind of beside the point but since you
bring this up - not necessarily.
E.g. I personally don't care much a
On Thu, Sep 21, 2023 at 09:17:53AM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Thursday, September 21, 2023 1:41 PM
>
> > > I mean to say,
> > > Virtio spec has not achieved mediation less, device migration.
> > > Virtio spec has not achieved device migration using med
On 9/21/2023 5:26 PM, Parav Pandit wrote:
From: Zhu, Lingshan
Sent: Thursday, September 21, 2023 2:49 PM
TDISP devices can not be migrated for now, and the TDISP spec make clear
examples of attacking models, your admin vq LM on the PF exactly match the
model.
I gave hint yesterday to you t
> From: Zhu, Lingshan
> Sent: Thursday, September 21, 2023 2:49 PM
> TDISP devices can not be migrated for now, and the TDISP spec make clear
> examples of attacking models, your admin vq LM on the PF exactly match the
> model.
I gave hint yesterday to you to consult Ravi at Intel who showed T
On 9/20/2023 9:41 PM, Parav Pandit wrote:
From: Michael S. Tsirkin
Sent: Wednesday, September 20, 2023 6:12 PM
And Parav same goes for you - can you summarize Zhu Lingshan's position?
Below is my summary about Zhu Lingshan's position:
One line summary of his position in my view:
0. Use inb
> From: Michael S. Tsirkin
> Sent: Thursday, September 21, 2023 1:41 PM
> > I mean to say,
> > Virtio spec has not achieved mediation less, device migration.
> > Virtio spec has not achieved device migration using mediation.
>
> But yes it has - it was implemented with shadow vq.
>
Shadow vq
On 9/21/2023 1:41 PM, Michael S. Tsirkin wrote:
On Thu, Sep 21, 2023 at 03:43:12AM +, Parav Pandit wrote:
From: Michael S. Tsirkin
Sent: Thursday, September 21, 2023 1:34 AM
On Wed, Sep 20, 2023 at 05:21:52PM +, Parav Pandit wrote:
OK so with this summary in mind, can you find an
On Thu, Sep 21, 2023 at 07:53:18AM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Thursday, September 21, 2023 12:51 PM
>
> > > > As I said, doable without mediation but already done with.
> > > >
> > > It is not done in the virtio spec that can work without mediation rig
> From: Michael S. Tsirkin
> Sent: Thursday, September 21, 2023 12:51 PM
> > > As I said, doable without mediation but already done with.
> > >
> > It is not done in the virtio spec that can work without mediation right?
>
> have trouble parsing this sentence
I mean to say,
Virtio spec has no
On Thu, Sep 21, 2023 at 06:31:01AM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Thursday, September 21, 2023 11:37 AM
>
> > > We should be enhancing the device context so that more and more items can
> > be annotated.
> > > I started with small to get the design and ide
> From: Michael S. Tsirkin
> Sent: Thursday, September 21, 2023 11:37 AM
> > We should be enhancing the device context so that more and more items can
> be annotated.
> > I started with small to get the design and idea through and will expand the
> device context so that cross vendors can migr
On Thu, Sep 21, 2023 at 05:54:37AM +, Parav Pandit wrote:
> Hi Michael,
>
> > From: Michael S. Tsirkin
> > Sent: Thursday, September 21, 2023 11:12 AM
>
> > I was attempting to have each of you see other's point of view.
> > It seems clear I was right, at least one way communication was not
Hi Michael,
> From: Michael S. Tsirkin
> Sent: Thursday, September 21, 2023 11:12 AM
> I was attempting to have each of you see other's point of view.
> It seems clear I was right, at least one way communication was not getting
> through. Let me try to help.
>
>
> First, clearly Zhu Lingshan c
On Thu, Sep 21, 2023 at 03:43:12AM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Thursday, September 21, 2023 1:34 AM
> >
> > On Wed, Sep 20, 2023 at 05:21:52PM +, Parav Pandit wrote:
> > > > OK so with this summary in mind, can you find any advantages to
> > > > inb
On Wed, Sep 20, 2023 at 07:27:05PM +0800, Zhu, Lingshan wrote:
> What if a malicious SW dump guest memory through admin vq LM facility?
What if malicious SW misconfigures vq through the SUSPEND bit facility?
--
MST
-
To unsubs
> From: Jason Wang
> Sent: Thursday, September 21, 2023 9:50 AM
> Parav, I think I've clarified several times:
>
> migration using the admin command is probably fine in some use cases.
>
This is definitely, was not clear to me.
I am 100% clear now.
> What's not fine, is:
>
> Mandate the adm
> From: Jason Wang
> Sent: Thursday, September 21, 2023 8:56 AM
> My understanding is it might be better that each side do a summary of the both
> proposals.
I will summarize it soon in reply to [1].
Thanks.
[1]
https://lore.kernel.org/virtio-comment/20230909142911.524407-7-pa...@nvidia.com/
On Thu, Sep 21, 2023 at 12:11 PM Parav Pandit wrote:
>
>
>
> > From: Jason Wang
> > Sent: Thursday, September 21, 2023 9:32 AM
> >
> > On Thu, Sep 21, 2023 at 11:51 AM Parav Pandit wrote:
> > >
> > >
> > >
> > > > From: Jason Wang
> > > > Sent: Thursday, September 21, 2023 8:45 AM The main issu
> From: Jason Wang
> Sent: Thursday, September 21, 2023 9:39 AM
>
> On Thu, Sep 21, 2023 at 12:01 PM Parav Pandit wrote:
> >
> >
> >
> > > From: Jason Wang
> > > Sent: Thursday, September 21, 2023 8:48 AM
> >
> > > As replied in another thread, the issues for BAR are:
> > >
> > > 1) Not sure i
> From: Jason Wang
> Sent: Thursday, September 21, 2023 9:32 AM
>
> On Thu, Sep 21, 2023 at 11:51 AM Parav Pandit wrote:
> >
> >
> >
> > > From: Jason Wang
> > > Sent: Thursday, September 21, 2023 8:45 AM The main issue I see so
> > > far is that you want to couple migration with admin comman
On Thu, Sep 21, 2023 at 12:01 PM Parav Pandit wrote:
>
>
>
> > From: Jason Wang
> > Sent: Thursday, September 21, 2023 8:48 AM
>
> > As replied in another thread, the issues for BAR are:
> >
> > 1) Not sure it can have an efficient interface, it would be something like
> > VIRTIO_PCI_CAP_PCI_CFG
> From: Jason Wang
> Sent: Thursday, September 21, 2023 8:48 AM
> I'm fine. But TDISP is something that needs to be considered. The earlier we
> realize the possible issue the better.
[1] has considered this in the design.
[1]
https://lore.kernel.org/virtio-comment/20230909142911.524407-7-p
On Thu, Sep 21, 2023 at 11:51 AM Parav Pandit wrote:
>
>
>
> > From: Jason Wang
> > Sent: Thursday, September 21, 2023 8:45 AM
> > The main issue I see so far is that
> > you want to couple migration with admin commands but I don't see much
> > advantages to doing this.
> >
> The way I read above
> From: Jason Wang
> Sent: Thursday, September 21, 2023 8:48 AM
> As replied in another thread, the issues for BAR are:
>
> 1) Not sure it can have an efficient interface, it would be something like
> VIRTIO_PCI_CAP_PCI_CFG which is very slow compared to single register
> accessing
> 2) There'
> From: Jason Wang
> Sent: Thursday, September 21, 2023 8:45 AM
> The main issue I see so far is that
> you want to couple migration with admin commands but I don't see much
> advantages to doing this.
>
The way I read above comment is, to draw a parallel line: descriptor posting in
virtio spe
> From: Michael S. Tsirkin
> Sent: Thursday, September 21, 2023 1:34 AM
>
> On Wed, Sep 20, 2023 at 05:21:52PM +, Parav Pandit wrote:
> > > OK so with this summary in mind, can you find any advantages to
> > > inband+mediation that are real or do you just see disadvantages? And
> > > it's
On Wed, Sep 20, 2023 at 8:41 PM Michael S. Tsirkin wrote:
>
> On Wed, Sep 20, 2023 at 08:05:49AM -0400, Michael S. Tsirkin wrote:
> > On Wed, Sep 20, 2023 at 07:22:32PM +0800, Zhu, Lingshan wrote:
> > >
> > >
> > > On 9/20/2023 6:36 PM, Michael S. Tsirkin wrote:
> > > > On Wed, Sep 20, 2023 at 02:
On Wed, Sep 20, 2023 at 8:05 PM Michael S. Tsirkin wrote:
>
> On Wed, Sep 20, 2023 at 07:22:32PM +0800, Zhu, Lingshan wrote:
> >
> >
> > On 9/20/2023 6:36 PM, Michael S. Tsirkin wrote:
> > > On Wed, Sep 20, 2023 at 02:06:13PM +0800, Zhu, Lingshan wrote:
> > > >
> > > > On 9/19/2023 2:49 AM, Michae
On Wed, Sep 20, 2023 at 6:36 PM Michael S. Tsirkin wrote:
>
> On Wed, Sep 20, 2023 at 02:06:13PM +0800, Zhu, Lingshan wrote:
> >
> >
> > On 9/19/2023 2:49 AM, Michael S. Tsirkin wrote:
> > > On Mon, Sep 18, 2023 at 06:41:55PM +, Parav Pandit wrote:
> > > > > Please refer to the code for settin
On Wed, Sep 20, 2023 at 8:40 PM Michael S. Tsirkin wrote:
>
> On Wed, Sep 20, 2023 at 08:16:13PM +0800, Zhu, Lingshan wrote:
> >
> >
> > On 9/20/2023 8:05 PM, Michael S. Tsirkin wrote:
> > > On Wed, Sep 20, 2023 at 07:22:32PM +0800, Zhu, Lingshan wrote:
> > > >
> > > > On 9/20/2023 6:36 PM, Michae
On Wed, Sep 20, 2023 at 05:21:52PM +, Parav Pandit wrote:
> > OK so with this summary in mind, can you find any advantages to
> > inband+mediation that are real or do you just see disadvantages? And
> > it's a tricky question because I can see some advantages ;)
>
> inband + mediation may be u
> From: Michael S. Tsirkin
> Sent: Wednesday, September 20, 2023 7:46 PM
>
> > Details of his position in my view:
> >
> > 1. Device migration must be done through VF itself by suspending specific
> > vqs
> and the VF device both.
> > 2. When device migration is done using #1, it must be done
On Wed, Sep 20, 2023 at 01:41:00PM +, Parav Pandit wrote:
>
> > From: Michael S. Tsirkin
> > Sent: Wednesday, September 20, 2023 6:12 PM
>
> > And Parav same goes for you - can you summarize Zhu Lingshan's position?
>
> Below is my summary about Zhu Lingshan's position:
>
> One line summar
On Wed, Sep 20, 2023 at 01:41:00PM +, Parav Pandit wrote:
> 12. Some how register access on single physical card for the PFs and VFs
> gives better QoS guarantee than virtqueue as registers can scale infinitely
> no matter how many VFs or for multiple VQs because it is per VF.
>
This makes s
> From: Michael S. Tsirkin
> Sent: Wednesday, September 20, 2023 6:12 PM
> And Parav same goes for you - can you summarize Zhu Lingshan's position?
Below is my summary about Zhu Lingshan's position:
One line summary of his position in my view:
0. Use inband device migration only, use mediati
On Wed, Sep 20, 2023 at 08:05:49AM -0400, Michael S. Tsirkin wrote:
> On Wed, Sep 20, 2023 at 07:22:32PM +0800, Zhu, Lingshan wrote:
> >
> >
> > On 9/20/2023 6:36 PM, Michael S. Tsirkin wrote:
> > > On Wed, Sep 20, 2023 at 02:06:13PM +0800, Zhu, Lingshan wrote:
> > > >
> > > > On 9/19/2023 2:49
On Wed, Sep 20, 2023 at 08:16:13PM +0800, Zhu, Lingshan wrote:
>
>
> On 9/20/2023 8:05 PM, Michael S. Tsirkin wrote:
> > On Wed, Sep 20, 2023 at 07:22:32PM +0800, Zhu, Lingshan wrote:
> > >
> > > On 9/20/2023 6:36 PM, Michael S. Tsirkin wrote:
> > > > On Wed, Sep 20, 2023 at 02:06:13PM +0800, Zh
On Wed, Sep 20, 2023 at 08:05:24PM +0800, Zhu, Lingshan wrote:
>
>
> On 9/20/2023 7:52 PM, Michael S. Tsirkin wrote:
> > On Wed, Sep 20, 2023 at 07:28:39PM +0800, Zhu, Lingshan wrote:
> > >
> > > On 9/20/2023 6:55 PM, Parav Pandit wrote:
> > > > > From: Michael S. Tsirkin
> > > > > Sent: Wednes
On 9/20/2023 8:05 PM, Michael S. Tsirkin wrote:
On Wed, Sep 20, 2023 at 07:22:32PM +0800, Zhu, Lingshan wrote:
On 9/20/2023 6:36 PM, Michael S. Tsirkin wrote:
On Wed, Sep 20, 2023 at 02:06:13PM +0800, Zhu, Lingshan wrote:
On 9/19/2023 2:49 AM, Michael S. Tsirkin wrote:
On Mon, Sep 18, 202
> From: Michael S. Tsirkin
> Sent: Wednesday, September 20, 2023 5:36 PM
>
> OK so we are ignoring TDISP applications for now? Everyone agrees on that?
We are actively considering TDISP applications to support in (unknown) future
in a way that new spec additions for new features we do, does n
On 9/20/2023 8:05 PM, Zhu, Lingshan wrote:
On 9/20/2023 7:52 PM, Michael S. Tsirkin wrote:
On Wed, Sep 20, 2023 at 07:28:39PM +0800, Zhu, Lingshan wrote:
On 9/20/2023 6:55 PM, Parav Pandit wrote:
From: Michael S. Tsirkin
Sent: Wednesday, September 20, 2023 4:06 PM
I freely admit the fin
On Wed, Sep 20, 2023 at 07:22:32PM +0800, Zhu, Lingshan wrote:
>
>
> On 9/20/2023 6:36 PM, Michael S. Tsirkin wrote:
> > On Wed, Sep 20, 2023 at 02:06:13PM +0800, Zhu, Lingshan wrote:
> > >
> > > On 9/19/2023 2:49 AM, Michael S. Tsirkin wrote:
> > > > On Mon, Sep 18, 2023 at 06:41:55PM +, Pa
On 9/20/2023 7:52 PM, Michael S. Tsirkin wrote:
On Wed, Sep 20, 2023 at 07:28:39PM +0800, Zhu, Lingshan wrote:
On 9/20/2023 6:55 PM, Parav Pandit wrote:
From: Michael S. Tsirkin
Sent: Wednesday, September 20, 2023 4:06 PM
I freely admit the finer points of this extended flamewar have been
On Wed, Sep 20, 2023 at 07:28:39PM +0800, Zhu, Lingshan wrote:
>
>
> On 9/20/2023 6:55 PM, Parav Pandit wrote:
> > > From: Michael S. Tsirkin
> > > Sent: Wednesday, September 20, 2023 4:06 PM
> > > I freely admit the finer points of this extended flamewar have been lost
> > > on me,
> > > and I
On 9/20/2023 6:55 PM, Parav Pandit wrote:
From: Michael S. Tsirkin
Sent: Wednesday, September 20, 2023 4:06 PM
I freely admit the finer points of this extended flamewar have been lost on me,
and I wager I'm not the only one. I thought you wanted to migrate the device
just by accessing the dev
ent:* Wednesday, September 20, 2023 4:41 PM
*To:* Parav Pandit ; Michael S. Tsirkin
*Cc:* virtio-dev@lists.oasis-open.org; Jason Wang
*Subject:* Re: [virtio-dev] Re: [PATCH 0/5] virtio: introduce SUSPEND
bit and vq state
On 9/20/2023 5:52 PM, Parav Pandit wrote:
Hi Lingshan,
Last two e
On 9/20/2023 6:36 PM, Michael S. Tsirkin wrote:
On Wed, Sep 20, 2023 at 02:06:13PM +0800, Zhu, Lingshan wrote:
On 9/19/2023 2:49 AM, Michael S. Tsirkin wrote:
On Mon, Sep 18, 2023 at 06:41:55PM +, Parav Pandit wrote:
Please refer to the code for setting FEATURES_OK.
It wont work when
@lists.oasis-open.org; Jason Wang
Subject: Re: [virtio-dev] Re: [PATCH 0/5] virtio: introduce SUSPEND bit and vq
state
On 9/20/2023 5:52 PM, Parav Pandit wrote:
Hi Lingshan,
Last two email replies in non-next format are getting hard to follow.
Can you please revert back to have text-based emails
.
Maybe we can close this.
Parav
*From:* Zhu, Lingshan
*Sent:* Wednesday, September 20, 2023 3:15 PM
*To:* Parav Pandit ; Michael S. Tsirkin
*Cc:* virtio-dev@lists.oasis-open.org; Jason Wang
*Subject:* Re: [virtio-dev] Re: [PATCH 0/5] virtio: introduce SUSPEND
bit and vq state
On 9/20/2023
> From: Michael S. Tsirkin
> Sent: Wednesday, September 20, 2023 4:06 PM
>
> I freely admit the finer points of this extended flamewar have been lost on
> me,
> and I wager I'm not the only one. I thought you wanted to migrate the device
> just by accessing the device itself (e.g. the VF) wit
On Wed, Sep 20, 2023 at 02:06:13PM +0800, Zhu, Lingshan wrote:
>
>
> On 9/19/2023 2:49 AM, Michael S. Tsirkin wrote:
> > On Mon, Sep 18, 2023 at 06:41:55PM +, Parav Pandit wrote:
> > > > Please refer to the code for setting FEATURES_OK.
> > > It wont work when one needs to suspend the device.
. Tsirkin
Cc: virtio-dev@lists.oasis-open.org; Jason Wang
Subject: Re: [virtio-dev] Re: [PATCH 0/5] virtio: introduce SUSPEND bit and vq
state
On 9/20/2023 4:34 PM, Parav Pandit wrote:
@font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2
4;}@font-face {font-family:Calibri
On Behalf Of *Zhu, Lingshan
*Sent:* Wednesday, September 20, 2023 12:01 PM
*To:* Parav Pandit ; Michael S. Tsirkin
*Cc:* virtio-dev@lists.oasis-open.org; Jason Wang
*Subject:* Re: [virtio-dev] Re: [PATCH 0/5] virtio: introduce SUSPEND
bit and vq state
On 9/20/2023 2:08 PM, Parav Pandit wrote:
S. Tsirkin
Cc: virtio-dev@lists.oasis-open.org; Jason Wang
Subject: Re: [virtio-dev] Re: [PATCH 0/5] virtio: introduce SUSPEND bit and vq
state
On 9/20/2023 2:08 PM, Parav Pandit wrote:
From: Zhu, Lingshan <mailto:lingshan@intel.com>
Sent: Wednesday, September 20, 2023 11:36 AM
On 9/20/2023 2:08 PM, Parav Pandit wrote:
From: Zhu, Lingshan
Sent: Wednesday, September 20, 2023 11:36 AM
On 9/19/2023 2:49 AM, Michael S. Tsirkin wrote:
On Mon, Sep 18, 2023 at 06:41:55PM +, Parav Pandit wrote:
Please refer to the code for setting FEATURES_OK.
It wont work when one ne
> From: Zhu, Lingshan
> Sent: Wednesday, September 20, 2023 11:36 AM
>
> On 9/19/2023 2:49 AM, Michael S. Tsirkin wrote:
> > On Mon, Sep 18, 2023 at 06:41:55PM +, Parav Pandit wrote:
> >>> Please refer to the code for setting FEATURES_OK.
> >> It wont work when one needs to suspend the devic
On 9/19/2023 2:49 AM, Michael S. Tsirkin wrote:
On Mon, Sep 18, 2023 at 06:41:55PM +, Parav Pandit wrote:
Please refer to the code for setting FEATURES_OK.
It wont work when one needs to suspend the device.
There is no point of doing such work over registers as fundamental framework is
On 9/19/2023 5:06 PM, Parav Pandit wrote:
From: Zhu, Lingshan
Sent: Tuesday, September 19, 2023 1:32 PM
On 9/19/2023 2:41 AM, Parav Pandit wrote:
From: Zhu, Lingshan
Sent: Monday, September 18, 2023 3:05 PM
On 9/18/2023 2:54 PM, Parav Pandit wrote:
From: Zhu, Lingshan
Sent: Monday, Se
> From: Zhu, Lingshan
> Sent: Tuesday, September 19, 2023 2:09 PM
>
> On 9/19/2023 4:31 PM, Parav Pandit wrote:
> >> From: Zhu, Lingshan
> >> Sent: Tuesday, September 19, 2023 1:34 PM
> >>> In your previous email you wrote,
> >>>
> >>> 1. "so lets focus on LM topic, other than confidential compu
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