Re: [Qemu-devel] [qemu-s390x] [PATCH v2 1/2] vfio-ccw: add force unlimited prefetch property

2018-05-24 Thread Cornelia Huck
On Thu, 24 May 2018 17:42:38 +0200 Halil Pasic wrote: > On 05/24/2018 12:29 PM, Halil Pasic wrote: > > > > > > On 05/24/2018 09:16 AM, Cornelia Huck wrote: > >> On Wed, 23 May 2018 19:28:31 +0200 > >> Halil Pasic wrote: > >> > >>> On 05/23/2018

Re: [Qemu-devel] [qemu-s390x] [PATCH v2 1/2] vfio-ccw: add force unlimited prefetch property

2018-05-24 Thread Halil Pasic
On 05/24/2018 12:29 PM, Halil Pasic wrote: On 05/24/2018 09:16 AM, Cornelia Huck wrote: On Wed, 23 May 2018 19:28:31 +0200 Halil Pasic wrote: On 05/23/2018 06:59 PM, Cornelia Huck wrote: On Wed, 23 May 2018 18:23:44 +0200 Halil Pasic wrote: On

Re: [Qemu-devel] [qemu-s390x] [PATCH v2 1/2] vfio-ccw: add force unlimited prefetch property

2018-05-24 Thread Cornelia Huck
On Thu, 24 May 2018 12:29:01 +0200 Halil Pasic wrote: > On 05/24/2018 09:16 AM, Cornelia Huck wrote: > > On Wed, 23 May 2018 19:28:31 +0200 > > Halil Pasic wrote: > > > >> On 05/23/2018 06:59 PM, Cornelia Huck wrote: > >>> On Wed, 23 May 2018

Re: [Qemu-devel] [qemu-s390x] [PATCH v2 1/2] vfio-ccw: add force unlimited prefetch property

2018-05-24 Thread Halil Pasic
On 05/24/2018 09:16 AM, Cornelia Huck wrote: On Wed, 23 May 2018 19:28:31 +0200 Halil Pasic wrote: On 05/23/2018 06:59 PM, Cornelia Huck wrote: On Wed, 23 May 2018 18:23:44 +0200 Halil Pasic wrote: On 05/23/2018 04:46 PM, Cornelia Huck wrote:

Re: [Qemu-devel] [qemu-s390x] [PATCH v2 1/2] vfio-ccw: add force unlimited prefetch property

2018-05-24 Thread Cornelia Huck
On Wed, 23 May 2018 19:28:31 +0200 Halil Pasic wrote: > On 05/23/2018 06:59 PM, Cornelia Huck wrote: > > On Wed, 23 May 2018 18:23:44 +0200 > > Halil Pasic wrote: > > > >> On 05/23/2018 04:46 PM, Cornelia Huck wrote: > >> +if

Re: [Qemu-devel] [qemu-s390x] [PATCH v2 1/2] vfio-ccw: add force unlimited prefetch property

2018-05-23 Thread Halil Pasic
On 05/23/2018 06:59 PM, Cornelia Huck wrote: On Wed, 23 May 2018 18:23:44 +0200 Halil Pasic wrote: On 05/23/2018 04:46 PM, Cornelia Huck wrote: +if (!(sch->orb.ctrl0 & ORB_CTRL0_MASK_PFCH)) { +if (!(vcdev->force_orb_pfch)) { +

Re: [Qemu-devel] [qemu-s390x] [PATCH v2 1/2] vfio-ccw: add force unlimited prefetch property

2018-05-23 Thread Cornelia Huck
On Wed, 23 May 2018 18:23:44 +0200 Halil Pasic wrote: > On 05/23/2018 04:46 PM, Cornelia Huck wrote: > +if (!(sch->orb.ctrl0 & ORB_CTRL0_MASK_PFCH)) { > +if (!(vcdev->force_orb_pfch)) { > +warn_report("vfio-ccw requires PFCH flag set");

Re: [Qemu-devel] [qemu-s390x] [PATCH v2 1/2] vfio-ccw: add force unlimited prefetch property

2018-05-23 Thread Halil Pasic
On 05/23/2018 04:46 PM, Cornelia Huck wrote: +if (!(sch->orb.ctrl0 & ORB_CTRL0_MASK_PFCH)) { +if (!(vcdev->force_orb_pfch)) { +warn_report("vfio-ccw requires PFCH flag set"); +sch_gen_unit_exception(sch); +css_inject_io_interrupt(sch); +

Re: [Qemu-devel] [qemu-s390x] [PATCH v2 1/2] vfio-ccw: add force unlimited prefetch property

2018-05-23 Thread Cornelia Huck
On Wed, 23 May 2018 16:31:53 +0200 Halil Pasic wrote: > On 05/23/2018 11:37 AM, Cornelia Huck wrote: > > On Wed, 23 May 2018 00:16:54 +0200 > > Halil Pasic wrote: > > > >> There is at least one guest (OS) such that although it does not rely on > >>

Re: [Qemu-devel] [qemu-s390x] [PATCH v2 1/2] vfio-ccw: add force unlimited prefetch property

2018-05-23 Thread Halil Pasic
On 05/23/2018 11:37 AM, Cornelia Huck wrote: On Wed, 23 May 2018 00:16:54 +0200 Halil Pasic wrote: There is at least one guest (OS) such that although it does not rely on the guarantees provided by ORB 1 word 9 bit (aka unlimited prefetch, aka P bit) not being set, it