On Mon, 1 Apr 2019 04:40:03 -0400
Yan Zhao wrote:
> On Mon, Apr 01, 2019 at 04:14:30PM +0800, Cornelia Huck wrote:
> > On Wed, 27 Mar 2019 16:10:20 -0600
> > Alex Williamson wrote:
> >
> > > On Wed, 27 Mar 2019 20:18:54 +
> > > "Dr. David Alan Gilbert" wrote:
> > >
> > > > * Zhao Yan
On Mon, Apr 01, 2019 at 04:14:30PM +0800, Cornelia Huck wrote:
> On Wed, 27 Mar 2019 16:10:20 -0600
> Alex Williamson wrote:
>
> > On Wed, 27 Mar 2019 20:18:54 +
> > "Dr. David Alan Gilbert" wrote:
> >
> > > * Zhao Yan (yan.y.z...@intel.com) wrote:
> > > > On Wed, Feb 20, 2019 at
On Wed, 27 Mar 2019 16:10:20 -0600
Alex Williamson wrote:
> On Wed, 27 Mar 2019 20:18:54 +
> "Dr. David Alan Gilbert" wrote:
>
> > * Zhao Yan (yan.y.z...@intel.com) wrote:
> > > On Wed, Feb 20, 2019 at 07:42:42PM +0800, Cornelia Huck wrote:
> > > > > > > > b) How do we detect if
On Sat, Mar 30, 2019 at 10:14:07PM +0800, Alex Williamson wrote:
> On Fri, 29 Mar 2019 19:10:50 -0400
> Zhao Yan wrote:
>
> > On Fri, Mar 29, 2019 at 10:26:39PM +0800, Alex Williamson wrote:
> > > On Thu, 28 Mar 2019 22:47:04 -0400
> > > Zhao Yan wrote:
> > >
> > > > On Fri, Mar 29, 2019 at
On Fri, 29 Mar 2019 19:10:50 -0400
Zhao Yan wrote:
> On Fri, Mar 29, 2019 at 10:26:39PM +0800, Alex Williamson wrote:
> > On Thu, 28 Mar 2019 22:47:04 -0400
> > Zhao Yan wrote:
> >
> > > On Fri, Mar 29, 2019 at 12:04:31AM +0800, Alex Williamson wrote:
> > > > On Thu, 28 Mar 2019 10:21:38
On Fri, Mar 29, 2019 at 10:26:39PM +0800, Alex Williamson wrote:
> On Thu, 28 Mar 2019 22:47:04 -0400
> Zhao Yan wrote:
>
> > On Fri, Mar 29, 2019 at 12:04:31AM +0800, Alex Williamson wrote:
> > > On Thu, 28 Mar 2019 10:21:38 +0100
> > > Erik Skultety wrote:
> > >
> > > > On Thu, Mar 28,
On Thu, 28 Mar 2019 22:47:04 -0400
Zhao Yan wrote:
> On Fri, Mar 29, 2019 at 12:04:31AM +0800, Alex Williamson wrote:
> > On Thu, 28 Mar 2019 10:21:38 +0100
> > Erik Skultety wrote:
> >
> > > On Thu, Mar 28, 2019 at 04:36:03AM -0400, Zhao Yan wrote:
> > > > hi Alex and Dave,
> > > > Thanks
On Fri, Mar 29, 2019 at 12:04:31AM +0800, Alex Williamson wrote:
> On Thu, 28 Mar 2019 10:21:38 +0100
> Erik Skultety wrote:
>
> > On Thu, Mar 28, 2019 at 04:36:03AM -0400, Zhao Yan wrote:
> > > hi Alex and Dave,
> > > Thanks for your replies.
> > > Please see my comments inline.
> > >
> > > On
On Thu, 28 Mar 2019 10:21:38 +0100
Erik Skultety wrote:
> On Thu, Mar 28, 2019 at 04:36:03AM -0400, Zhao Yan wrote:
> > hi Alex and Dave,
> > Thanks for your replies.
> > Please see my comments inline.
> >
> > On Thu, Mar 28, 2019 at 06:10:20AM +0800, Alex Williamson wrote:
> > > On Wed, 27
On Thu, Mar 28, 2019 at 04:36:03AM -0400, Zhao Yan wrote:
> hi Alex and Dave,
> Thanks for your replies.
> Please see my comments inline.
>
> On Thu, Mar 28, 2019 at 06:10:20AM +0800, Alex Williamson wrote:
> > On Wed, 27 Mar 2019 20:18:54 +
> > "Dr. David Alan Gilbert" wrote:
> >
> > > *
hi Alex and Dave,
Thanks for your replies.
Please see my comments inline.
On Thu, Mar 28, 2019 at 06:10:20AM +0800, Alex Williamson wrote:
> On Wed, 27 Mar 2019 20:18:54 +
> "Dr. David Alan Gilbert" wrote:
>
> > * Zhao Yan (yan.y.z...@intel.com) wrote:
> > > On Wed, Feb 20, 2019 at
On Wed, 27 Mar 2019 20:18:54 +
"Dr. David Alan Gilbert" wrote:
> * Zhao Yan (yan.y.z...@intel.com) wrote:
> > On Wed, Feb 20, 2019 at 07:42:42PM +0800, Cornelia Huck wrote:
> > > > > > > b) How do we detect if we're migrating from/to the wrong device
> > > > > > > or
> > > > > > >
* Zhao Yan (yan.y.z...@intel.com) wrote:
> On Wed, Feb 20, 2019 at 07:42:42PM +0800, Cornelia Huck wrote:
> > > > > > b) How do we detect if we're migrating from/to the wrong device or
> > > > > > version of device? Or say to a device with older firmware or
> > > > > > perhaps
> > > > > > a
On Wed, Feb 20, 2019 at 07:42:42PM +0800, Cornelia Huck wrote:
> > > > > b) How do we detect if we're migrating from/to the wrong device or
> > > > > version of device? Or say to a device with older firmware or perhaps
> > > > > a device that has less device memory ?
> > > > Actually it's
On Mon, Mar 18, 2019 at 11:09:04AM +0800, Alex Williamson wrote:
> On Sun, 17 Mar 2019 22:51:27 -0400
> Zhao Yan wrote:
>
> > On Fri, Mar 15, 2019 at 10:24:02AM +0800, Alex Williamson wrote:
> > > On Thu, 14 Mar 2019 19:05:06 -0400
> > > Zhao Yan wrote:
> > >
> > > > On Fri, Mar 15, 2019 at
On Sun, 17 Mar 2019 22:51:27 -0400
Zhao Yan wrote:
> On Fri, Mar 15, 2019 at 10:24:02AM +0800, Alex Williamson wrote:
> > On Thu, 14 Mar 2019 19:05:06 -0400
> > Zhao Yan wrote:
> >
> > > On Fri, Mar 15, 2019 at 06:44:58AM +0800, Alex Williamson wrote:
> > > > On Wed, 13 Mar 2019 21:12:22
On Fri, Mar 15, 2019 at 10:24:02AM +0800, Alex Williamson wrote:
> On Thu, 14 Mar 2019 19:05:06 -0400
> Zhao Yan wrote:
>
> > On Fri, Mar 15, 2019 at 06:44:58AM +0800, Alex Williamson wrote:
> > > On Wed, 13 Mar 2019 21:12:22 -0400
> > > Zhao Yan wrote:
> > >
> > > > On Thu, Mar 14, 2019 at
On Thu, 14 Mar 2019 19:05:06 -0400
Zhao Yan wrote:
> On Fri, Mar 15, 2019 at 06:44:58AM +0800, Alex Williamson wrote:
> > On Wed, 13 Mar 2019 21:12:22 -0400
> > Zhao Yan wrote:
> >
> > > On Thu, Mar 14, 2019 at 03:14:54AM +0800, Alex Williamson wrote:
> > > > On Tue, 12 Mar 2019 21:13:01
On Fri, Mar 15, 2019 at 06:44:58AM +0800, Alex Williamson wrote:
> On Wed, 13 Mar 2019 21:12:22 -0400
> Zhao Yan wrote:
>
> > On Thu, Mar 14, 2019 at 03:14:54AM +0800, Alex Williamson wrote:
> > > On Tue, 12 Mar 2019 21:13:01 -0400
> > > Zhao Yan wrote:
> > >
> > > > hi Alex
> > > > Any
On Wed, 13 Mar 2019 21:12:22 -0400
Zhao Yan wrote:
> On Thu, Mar 14, 2019 at 03:14:54AM +0800, Alex Williamson wrote:
> > On Tue, 12 Mar 2019 21:13:01 -0400
> > Zhao Yan wrote:
> >
> > > hi Alex
> > > Any comments to the sequence below?
> > >
> > > Actaully we have some concerns and
On Thu, Mar 14, 2019 at 03:14:54AM +0800, Alex Williamson wrote:
> On Tue, 12 Mar 2019 21:13:01 -0400
> Zhao Yan wrote:
>
> > hi Alex
> > Any comments to the sequence below?
> >
> > Actaully we have some concerns and suggestions to userspace-opaque migration
> > data.
> >
> > 1. if data is
On Tue, 12 Mar 2019 02:48:39 +
"Tian, Kevin" wrote:
> > From: Alex Williamson [mailto:alex.william...@redhat.com]
> > Sent: Tuesday, March 12, 2019 4:19 AM
> > On Mon, 11 Mar 2019 02:33:11 +
> > "Tian, Kevin" wrote:
> >
> [...]
> >
> > I think I've fully conceded any notion of
On Tue, 12 Mar 2019 21:13:01 -0400
Zhao Yan wrote:
> hi Alex
> Any comments to the sequence below?
>
> Actaully we have some concerns and suggestions to userspace-opaque migration
> data.
>
> 1. if data is opaque to userspace, kernel interface must be tightly bound to
> migration.
>e.g.
hi Alex
Any comments to the sequence below?
Actaully we have some concerns and suggestions to userspace-opaque migration
data.
1. if data is opaque to userspace, kernel interface must be tightly bound to
migration.
e.g. vendor driver has to know state (running + not logging) should not
hi Alex
thanks for your reply.
So, if we choose migration data to be userspace opaque, do you think below
sequence is the right behavior for vendor driver to follow:
1. initially LOGGING state is not set. If userspace calls GET_BUFFER to
vendor driver, vendor driver should reject and return 0.
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Tuesday, March 12, 2019 4:19 AM
> On Mon, 11 Mar 2019 02:33:11 +
> "Tian, Kevin" wrote:
>
[...]
>
> I think I've fully conceded any notion of security by obscurity towards
> opaque data already, but segregating types of
On Mon, 11 Mar 2019 02:33:11 +
"Tian, Kevin" wrote:
> > From: Alex Williamson
> > Sent: Saturday, March 9, 2019 6:03 AM
> >
> > On Fri, 8 Mar 2019 16:21:46 +
> > "Dr. David Alan Gilbert" wrote:
> >
> > > * Alex Williamson (alex.william...@redhat.com) wrote:
> > > > On Thu, 7 Mar
> From: Alex Williamson
> Sent: Saturday, March 9, 2019 6:03 AM
>
> On Fri, 8 Mar 2019 16:21:46 +
> "Dr. David Alan Gilbert" wrote:
>
> > * Alex Williamson (alex.william...@redhat.com) wrote:
> > > On Thu, 7 Mar 2019 23:20:36 +
> > > "Tian, Kevin" wrote:
> > >
> > > > > From: Alex
On Fri, 8 Mar 2019 16:21:46 +
"Dr. David Alan Gilbert" wrote:
> * Alex Williamson (alex.william...@redhat.com) wrote:
> > On Thu, 7 Mar 2019 23:20:36 +
> > "Tian, Kevin" wrote:
> >
> > > > From: Alex Williamson [mailto:alex.william...@redhat.com]
> > > > Sent: Friday, March 8, 2019
* Alex Williamson (alex.william...@redhat.com) wrote:
> On Thu, 7 Mar 2019 23:20:36 +
> "Tian, Kevin" wrote:
>
> > > From: Alex Williamson [mailto:alex.william...@redhat.com]
> > > Sent: Friday, March 8, 2019 1:44 AM
> > > > >
> > > > > > This kind of data needs to be saved /
On Thu, 7 Mar 2019 23:20:36 +
"Tian, Kevin" wrote:
> > From: Alex Williamson [mailto:alex.william...@redhat.com]
> > Sent: Friday, March 8, 2019 1:44 AM
> > > >
> > > > > This kind of data needs to be saved / loaded in pre-copy and
> > > > > stop-and-copy phase.
> > > > >
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Friday, March 8, 2019 1:44 AM
> > >
> > > > This kind of data needs to be saved / loaded in pre-copy and
> > > > stop-and-copy phase.
> > > > The data of device memory is held in device memory region.
> > >
Hi Yan,
Sorry for the delay, I've been on PTO...
On Sun, 24 Feb 2019 21:22:56 -0500
Zhao Yan wrote:
> On Thu, Feb 21, 2019 at 01:40:51PM -0700, Alex Williamson wrote:
> > Hi Yan,
> >
> > Thanks for working on this!
> >
> > On Tue, 19 Feb 2019 16:50:54 +0800
> > Yan Zhao wrote:
> >
> > >
hi Alex
we still have some opens as below. could you kindly help review on that? :)
Thanks
Yan
On Mon, Feb 25, 2019 at 10:22:56AM +0800, Zhao Yan wrote:
> On Thu, Feb 21, 2019 at 01:40:51PM -0700, Alex Williamson wrote:
> > Hi Yan,
> >
> > Thanks for working on this!
> >
> > On Tue, 19 Feb
On Thu, Feb 21, 2019 at 01:40:51PM -0700, Alex Williamson wrote:
> Hi Yan,
>
> Thanks for working on this!
>
> On Tue, 19 Feb 2019 16:50:54 +0800
> Yan Zhao wrote:
>
> > This patchset enables VFIO devices to have live migration capability.
> > Currently it does not support post-copy phase.
> >
Hi Yan,
Thanks for working on this!
On Tue, 19 Feb 2019 16:50:54 +0800
Yan Zhao wrote:
> This patchset enables VFIO devices to have live migration capability.
> Currently it does not support post-copy phase.
>
> It follows Alex's comments on last version of VFIO live migration patches,
>
* Zhao Yan (yan.y.z...@intel.com) wrote:
> On Wed, Feb 20, 2019 at 11:01:43AM +, Dr. David Alan Gilbert wrote:
> > * Zhao Yan (yan.y.z...@intel.com) wrote:
> > > On Tue, Feb 19, 2019 at 11:32:13AM +, Dr. David Alan Gilbert wrote:
> > > > * Yan Zhao (yan.y.z...@intel.com) wrote:
> > > > >
> >
> > > -Original Message-
> > > From: Zhao Yan [mailto:yan.y.z...@intel.com]
> > > Sent: Thursday, February 21, 2019 10:05 AM
> > > To: Gonglei (Arei)
> > > Cc: alex.william...@redhat.com; qemu-devel@nongnu.org;
> > > intel-gvt-...@lists.freedesktop.org; zhengxiao...@alibaba-inc.com;
>
> -Original Message-
> From: Zhao Yan [mailto:yan.y.z...@intel.com]
> Sent: Thursday, February 21, 2019 12:08 PM
> To: Gonglei (Arei)
> Cc: c...@nvidia.com; k...@vger.kernel.org; a...@ozlabs.ru;
> zhengxiao...@alibaba-inc.com; shuangtai@alibaba-inc.com;
> qemu-devel@nongnu.org;
On Thu, Feb 21, 2019 at 03:16:45AM +, Gonglei (Arei) wrote:
>
>
>
> > -Original Message-
> > From: Zhao Yan [mailto:yan.y.z...@intel.com]
> > Sent: Thursday, February 21, 2019 10:05 AM
> > To: Gonglei (Arei)
> > Cc: alex.william...@redhat.com; qemu-devel@nongnu.org;
> >
On Thu, Feb 21, 2019 at 03:33:24AM +, Gonglei (Arei) wrote:
>
> > -Original Message-
> > From: Zhao Yan [mailto:yan.y.z...@intel.com]
> > Sent: Thursday, February 21, 2019 9:59 AM
> > To: Gonglei (Arei)
> > Cc: alex.william...@redhat.com; qemu-devel@nongnu.org;
> >
> -Original Message-
> From: Zhao Yan [mailto:yan.y.z...@intel.com]
> Sent: Thursday, February 21, 2019 9:59 AM
> To: Gonglei (Arei)
> Cc: alex.william...@redhat.com; qemu-devel@nongnu.org;
> intel-gvt-...@lists.freedesktop.org; zhengxiao...@alibaba-inc.com;
> yi.l@intel.com;
> -Original Message-
> From: Zhao Yan [mailto:yan.y.z...@intel.com]
> Sent: Thursday, February 21, 2019 10:05 AM
> To: Gonglei (Arei)
> Cc: alex.william...@redhat.com; qemu-devel@nongnu.org;
> intel-gvt-...@lists.freedesktop.org; zhengxiao...@alibaba-inc.com;
> yi.l@intel.com;
> >
> > > 5) About log sync, why not register log_global_start/stop in
> > vfio_memory_listener?
> > >
> > >
> > seems log_global_start/stop cannot be iterately called in pre-copy phase?
> > for dirty pages in system memory, it's better to transfer dirty data
> > iteratively to reduce down time,
On Thu, Feb 21, 2019 at 01:35:43AM +, Gonglei (Arei) wrote:
>
>
> > -Original Message-
> > From: Zhao Yan [mailto:yan.y.z...@intel.com]
> > Sent: Thursday, February 21, 2019 8:25 AM
> > To: Gonglei (Arei)
> > Cc: alex.william...@redhat.com; qemu-devel@nongnu.org;
> >
> -Original Message-
> From: Zhao Yan [mailto:yan.y.z...@intel.com]
> Sent: Thursday, February 21, 2019 8:25 AM
> To: Gonglei (Arei)
> Cc: alex.william...@redhat.com; qemu-devel@nongnu.org;
> intel-gvt-...@lists.freedesktop.org; zhengxiao...@alibaba-inc.com;
> yi.l@intel.com;
On Wed, Feb 20, 2019 at 11:01:43AM +, Dr. David Alan Gilbert wrote:
> * Zhao Yan (yan.y.z...@intel.com) wrote:
> > On Tue, Feb 19, 2019 at 11:32:13AM +, Dr. David Alan Gilbert wrote:
> > > * Yan Zhao (yan.y.z...@intel.com) wrote:
> > > > This patchset enables VFIO devices to have live
On Wed, Feb 20, 2019 at 11:56:01AM +, Gonglei (Arei) wrote:
> Hi yan,
>
> Thanks for your work.
>
> I have some suggestions or questions:
>
> 1) Would you add msix mode support,? if not, pls add a check in
> vfio_pci_save_config(), likes Nvidia's solution.
ok.
> 2) We should start vfio
> -Original Message-
> From: Cornelia Huck [mailto:coh...@redhat.com]
> Sent: Wednesday, February 20, 2019 7:43 PM
> To: Gonglei (Arei)
> Cc: Dr. David Alan Gilbert ; Zhao Yan
> ; c...@nvidia.com; k...@vger.kernel.org;
> a...@ozlabs.ru; zhengxiao...@alibaba-inc.com;
Hi yan,
Thanks for your work.
I have some suggestions or questions:
1) Would you add msix mode support,? if not, pls add a check in
vfio_pci_save_config(), likes Nvidia's solution.
2) We should start vfio devices before vcpu resumes, so we can't rely on vm
start change handler completely.
3)
On Wed, 20 Feb 2019 11:28:46 +
"Gonglei (Arei)" wrote:
> > -Original Message-
> > From: Dr. David Alan Gilbert [mailto:dgilb...@redhat.com]
> > Sent: Wednesday, February 20, 2019 7:02 PM
> > To: Zhao Yan
> > Cc: c...@nvidia.com; k...@vger.kernel.org; a...@ozlabs.ru;
> >
> -Original Message-
> From: Dr. David Alan Gilbert [mailto:dgilb...@redhat.com]
> Sent: Wednesday, February 20, 2019 7:02 PM
> To: Zhao Yan
> Cc: c...@nvidia.com; k...@vger.kernel.org; a...@ozlabs.ru;
> zhengxiao...@alibaba-inc.com; shuangtai@alibaba-inc.com;
>
* Zhao Yan (yan.y.z...@intel.com) wrote:
> On Tue, Feb 19, 2019 at 11:32:13AM +, Dr. David Alan Gilbert wrote:
> > * Yan Zhao (yan.y.z...@intel.com) wrote:
> > > This patchset enables VFIO devices to have live migration capability.
> > > Currently it does not support post-copy phase.
> > >
>
On Tue, Feb 19, 2019 at 11:32:13AM +, Dr. David Alan Gilbert wrote:
> * Yan Zhao (yan.y.z...@intel.com) wrote:
> > This patchset enables VFIO devices to have live migration capability.
> > Currently it does not support post-copy phase.
> >
> > It follows Alex's comments on last version of
* Yan Zhao (yan.y.z...@intel.com) wrote:
> This patchset enables VFIO devices to have live migration capability.
> Currently it does not support post-copy phase.
>
> It follows Alex's comments on last version of VFIO live migration patches,
> including device states, VFIO device state region
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