On Thu, May 06, 2010 at 10:22:12AM +0930, Rusty Russell wrote:
> On Wed, 5 May 2010 03:52:36 am Michael S. Tsirkin wrote:
> > > virtio: put last_used and last_avail index into ring itself.
> > >
> > > Generally, the other end of the virtio ring doesn't need to see where
> > > you're up to in consu
On Thu, May 06, 2010 at 12:01:34PM +0930, Rusty Russell wrote:
> On Thu, 6 May 2010 06:28:14 am Michael S. Tsirkin wrote:
> > Rusty,
> > this is a simplified form of a patch you posted in the past.
> > I have a vhost patch that, using this feature, shows external
> > to host bandwidth grow from 5 t
On Wed, 5 May 2010 03:33:43 pm Neil Brown wrote:
> On Wed, 5 May 2010 14:28:41 +0930
> Rusty Russell wrote:
>
> > On Wed, 5 May 2010 05:47:05 am Jamie Lokier wrote:
> > > Jens Axboe wrote:
> > > > On Tue, May 04 2010, Rusty Russell wrote:
> > > > > ISTR someone mentioning a desire for such an API
On Thu, 6 May 2010 06:28:14 am Michael S. Tsirkin wrote:
> Rusty,
> this is a simplified form of a patch you posted in the past.
> I have a vhost patch that, using this feature, shows external
> to host bandwidth grow from 5 to 7 GB/s, by avoiding
> an interrupt in the window after previous interru
On Thu, 6 May 2010 06:05:06 am Amit Shah wrote:
> Hello,
>
> This series adds resize support for multiple console ports. The size
> for each console is stored in its structure and the host informs the
> guest about size changes via the VIRTIO_CONSOLE_RESIZE control
> message.
Thanks, applied!
Ru
On Thu, 2010-05-06 at 01:42 +, Haiyang Zhang wrote:
> > Why a maximum of 50 samples?
> After reboot the flag ICTIMESYNCFLAG_SYNC is included in the
> first time message after the timesync channel is opened. Since the
> hv_utils module is loaded after hv_vmbus, the first message is usually
> m
> Why a maximum of 50 samples?
After reboot the flag ICTIMESYNCFLAG_SYNC is included in the
first time message after the timesync channel is opened. Since the
hv_utils module is loaded after hv_vmbus, the first message is usually
missed. The other thing is, systime is automatically set to emulate
On Wed, 5 May 2010 08:39:47 pm Michael S. Tsirkin wrote:
> Hi!
> I see this in virtio_ring.c:
>
> /* Put entry in available array (but don't update avail->idx *
> until they do sync). */
>
> Why is it done this way?
> It seems that updating the index straight away would be simple
On Wed, 2010-05-05 at 19:23 +, Haiyang Zhang wrote:
> From: Haiyang Zhang
>
> Subject: Add Time Sync feature to hv_utils module.
> The Time Sync feature synchronizes guest time to host UTC time after reboot,
> and restore from saved/paused state.
> +static void adj_guesttime(winfiletime_t hos
On Wed, 5 May 2010 03:52:36 am Michael S. Tsirkin wrote:
> > virtio: put last_used and last_avail index into ring itself.
> >
> > Generally, the other end of the virtio ring doesn't need to see where
> > you're up to in consuming the ring. However, to completely understand
> > what's going on fro
On Wednesday 05 May 2010 01:09:48 pm Arnd Bergmann wrote:
> > > If you have any interesting in developing this further, do:
> > >
> > > (1) move the limited VF drivers directly into the kernel tree,
> > > talk to them through a normal ops vector
> >
> > [PT] This assumes that all the VF dri
On Wednesday 05 May 2010 10:31:20 am Christoph Hellwig wrote:
> On Wed, May 05, 2010 at 10:29:40AM -0700, Dmitry Torokhov wrote:
> > > We're not going to add any kind of loader for binry blobs into kernel
> > > space, sorry. Don't even bother wasting your time on this.
> >
> > It would not be a b
On Wednesday 05 May 2010 10:23:16 am Christoph Hellwig wrote:
> On Tue, May 04, 2010 at 04:02:25PM -0700, Pankaj Thakkar wrote:
> > The plugin image is provided by the IHVs along with the PF driver and is
> > packaged in the hypervisor. The plugin image is OS agnostic and can be
> > loaded either i
> -Original Message-
> From: pv-drivers-boun...@vmware.com [mailto:pv-drivers-
> boun...@vmware.com] On Behalf Of Arnd Bergmann
> Sent: Wednesday, May 05, 2010 2:53 PM
> To: Dmitry Torokhov
> Cc: Christoph Hellwig; pv-driv...@vmware.com; net...@vger.kernel.org;
> linux-ker...@vger.kernel.
On Wednesday 05 May 2010 22:36:31 Dmitry Torokhov wrote:
>
> On Wednesday 05 May 2010 01:09:48 pm Arnd Bergmann wrote:
> > > > If you have any interesting in developing this further, do:
> > > >
> > > > (1) move the limited VF drivers directly into the kernel tree,
> > > > talk to them thro
Hello,
This series adds resize support for multiple console ports. The size
for each console is stored in its structure and the host informs the
guest about size changes via the VIRTIO_CONSOLE_RESIZE control
message.
This is easily tested by the qemu patches provided by Kusanagi Kouichi
with some
On 05/05/2010 11:58 PM, Michael S. Tsirkin wrote:
> Generally, the Host end of the virtio ring doesn't need to see where
> Guest is up to in consuming the ring. However, to completely understand
> what's going on from the outside, this information must be exposed.
> For example, host can reduce th
On Wed, May 05, 2010 at 02:40:15PM -0500, Anthony Liguori wrote:
> On 05/05/2010 06:09 AM, Michael S. Tsirkin wrote:
>> Hi!
>> I see this in virtio_ring.c:
>>
>> /* Put entry in available array (but don't update avail->idx *
>> until they do sync). */
>>
>> Why is it done this way?
Generally, the Host end of the virtio ring doesn't need to see where
Guest is up to in consuming the ring. However, to completely understand
what's going on from the outside, this information must be exposed.
For example, host can reduce the number of interrupts by detecting
that the guest is curr
When using multiport, we'll use control messages. Ensure we don't
accidentally update port 0 size on config interrupts.
Signed-off-by: Amit Shah
CC: Christian Borntraeger
CC: linuxppc-...@ozlabs.org
CC: Kusanagi Kouichi
---
drivers/char/virtio_console.c | 17 ++---
1 files change
With support for multiple consoles, just using one {rows,cols} pair in
the config space is not going to suffice.
Store each console's size as part of the console struct.
This changes the behaviour for one case when multiport is not enabled:
when notifier_add_vio() is called, the console size is t
The VIRTIO_CONSOLE_RESIZE control message sent to us by the host now
contains the new {rows, cols} values for the console. This ensures each
console port gets its own size, and we don't depend on the config-space
rows and cols values at all now.
Signed-off-by: Amit Shah
CC: Christian Borntraeger
On Wednesday 05 May 2010 19:47:10 Pankaj Thakkar wrote:
> >
> > Forget about the licensing. Loading binary blobs written to a shim
> > layer is a complete pain in the ass and totally unsupportable, and
> > also uninteresting because of the overhead.
>
> [PT] Why do you think it is unsupportable?
On Wed, May 05, 2010 at 10:59:51AM -0700, Avi Kivity wrote:
> Date: Wed, 5 May 2010 10:59:51 -0700
> From: Avi Kivity
> To: Pankaj Thakkar
> CC: "linux-ker...@vger.kernel.org" ,
> "net...@vger.kernel.org" ,
> "virtualization@lists.linux-foundation.org"
> ,
> "pv-driv...@vmware.
On 05/05/2010 06:09 AM, Michael S. Tsirkin wrote:
> Hi!
> I see this in virtio_ring.c:
>
> /* Put entry in available array (but don't update avail->idx *
> until they do sync). */
>
> Why is it done this way?
> It seems that updating the index straight away would be simpler, while
From: Haiyang Zhang
Subject: Add Time Sync feature to hv_utils module.
The Time Sync feature synchronizes guest time to host UTC time after reboot,
and restore from saved/paused state.
Cc: Greg Kroah-Hartman
Signed-off-by: Hank Janssen
Signed-off-by: Haiyang Zhang
---
drivers/staging/hv/Cha
On Tue, May 04, 2010 at 05:58:52PM -0700, Chris Wright wrote:
> Date: Tue, 4 May 2010 17:58:52 -0700
> From: Chris Wright
> To: Pankaj Thakkar
> CC: "linux-ker...@vger.kernel.org" ,
> "net...@vger.kernel.org" ,
> "virtualization@lists.linux-foundation.org"
> ,
> "pv-driv...@vmw
On 05/05/2010 02:02 AM, Pankaj Thakkar wrote:
> 2. Hypervisor control: All control operations from the guest such as
> programming
> MAC address go through the hypervisor layer and hence can be subjected to
> hypervisor policies. The PF driver can be further used to put policy decisions
> like whi
On Wed, 5 May 2010 13:39:51 -0400
Christoph Hellwig wrote:
> On Wed, May 05, 2010 at 10:35:28AM -0700, Dmitry Torokhov wrote:
> > Yes, with the exception that the only body of code that will be
> > accepted by the shell should be GPL-licensed and thus open and available
> > for examining. This is
> -Original Message-
> From: Christoph Hellwig [mailto:h...@infradead.org]
> Sent: Wednesday, May 05, 2010 10:40 AM
> To: Dmitry Torokhov
> Cc: Christoph Hellwig; pv-driv...@vmware.com; Pankaj Thakkar;
> net...@vger.kernel.org; linux-ker...@vger.kernel.org;
> virtualization@lists.linux-fo
On Wed, May 05, 2010 at 10:35:28AM -0700, Dmitry Torokhov wrote:
> Yes, with the exception that the only body of code that will be
> accepted by the shell should be GPL-licensed and thus open and available
> for examining. This is not different from having a standard kernel
> module that is loaded
On Wed, May 05, 2010 at 10:29:40AM -0700, Dmitry Torokhov wrote:
> > We're not going to add any kind of loader for binry blobs into kernel
> > space, sorry. Don't even bother wasting your time on this.
> >
>
> It would not be a binary blob but software properly released under GPL.
> The current
On Tue, May 04, 2010 at 04:02:25PM -0700, Pankaj Thakkar wrote:
> The plugin image is provided by the IHVs along with the PF driver and is
> packaged in the hypervisor. The plugin image is OS agnostic and can be loaded
> either into a Linux VM or a Windows VM. The plugin is written against the
> S
Sure. We have been working on NPA for a while and have the code internally up
and running. Let me sync up internally on how and when we can provide the
vmxnet3 driver code so that people can look at it.
On Tue, May 04, 2010 at 05:32:36PM -0700, David Miller wrote:
> Date: Tue, 4 May 2010 17:32:36
The purpose of this email is to introduce the architecture and the design
principles. The overall project involves more than just changes to vmxnet3
driver and hence we though an overview email would be better. Once people agree
to the design in general we intend to provide the code changes to t
Device passthrough technology allows a guest to bypass the hypervisor and drive
the underlying physical device. VMware has been exploring various ways to
deliver this technology to users in a manner which is easy to adopt. In this
process we have prepared an architecture along with Intel - NPA (Net
Hi!
I see this in virtio_ring.c:
/* Put entry in available array (but don't update avail->idx *
until they do sync). */
Why is it done this way?
It seems that updating the index straight away would be simpler, while
this might allow the host to specilatively look up the buffer
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