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