Re: [Xen-devel] [PATCH] xen-pvdevice: Introduce a simplistic xen-pvdevice save state

2018-03-11 Thread Stefano Stabellini
On Thu, 8 Mar 2018, Igor Druzhinin wrote: > This should help to avoid problems with accessing the device after > migration/resume without PV drivers. Older systems will acquire > the new record when migrated which should not change their state for > worse. Could you please explain what problems th

Re: [Xen-devel] [PATCH] xen-pvdevice: Introduce a simplistic xen-pvdevice save state

2018-03-09 Thread Anthony PERARD
On Thu, Mar 08, 2018 at 12:52:31PM +, Igor Druzhinin wrote: > This should help to avoid problems with accessing the device after > migration/resume without PV drivers. Older systems will acquire > the new record when migrated which should not change their state for > worse. > > Signed-off-by:

Re: [Xen-devel] [PATCH] xen-pvdevice: Introduce a simplistic xen-pvdevice save state

2018-03-08 Thread Paul Durrant
> -Original Message- > From: Igor Druzhinin [mailto:igor.druzhi...@citrix.com] > Sent: 08 March 2018 12:53 > To: qemu-de...@nongnu.org; xen-devel@lists.xenproject.org > Cc: sstabell...@kernel.org; Paul Durrant ; Anthony > Perard ; m...@redhat.com; > pbonz...@redhat.com; Igor Druzhinin > Su

[Xen-devel] [PATCH] xen-pvdevice: Introduce a simplistic xen-pvdevice save state

2018-03-08 Thread Igor Druzhinin
This should help to avoid problems with accessing the device after migration/resume without PV drivers. Older systems will acquire the new record when migrated which should not change their state for worse. Signed-off-by: Igor Druzhinin --- hw/i386/xen/xen_pvdevice.c | 11 +++ 1 file cha