Re: [PATCH] virtio_console: avoid config access from irq

2015-03-04 Thread Michael S. Tsirkin
On Wed, Mar 04, 2015 at 11:08:18AM +1030, Rusty Russell wrote: > Amit Shah writes: > > On (Sat) 28 Feb 2015 [18:42:25], Michael S. Tsirkin wrote: > >> when multiport is off, virtio console invokes config access from irq > >> context, config access is blocking on s390. > >> Fix this up by schedulin

Re: [PATCH] virtio_console: avoid config access from irq

2015-03-03 Thread Rusty Russell
Amit Shah writes: > On (Sat) 28 Feb 2015 [18:42:25], Michael S. Tsirkin wrote: >> when multiport is off, virtio console invokes config access from irq >> context, config access is blocking on s390. >> Fix this up by scheduling work from config irq - similar to what we do >> for multiport configs.

Re: [PATCH] virtio_console: avoid config access from irq

2015-03-01 Thread Amit Shah
On (Sat) 28 Feb 2015 [18:42:25], Michael S. Tsirkin wrote: > when multiport is off, virtio console invokes config access from irq > context, config access is blocking on s390. > Fix this up by scheduling work from config irq - similar to what we do > for multiport configs. > > Signed-off-by: Micha

[PATCH] virtio_console: avoid config access from irq

2015-02-28 Thread Michael S. Tsirkin
when multiport is off, virtio console invokes config access from irq context, config access is blocking on s390. Fix this up by scheduling work from config irq - similar to what we do for multiport configs. Signed-off-by: Michael S. Tsirkin --- Applies on top of "virtio_console: init work uncond