Re: [PATCH v5 7/9] s390x/pci: enable adapter event notification for interpreted devices

2022-05-02 Thread Niklas Schnelle
On Mon, 2022-05-02 at 09:48 +0200, Pierre Morel wrote: > > On 4/22/22 14:10, Matthew Rosato wrote: > > On 4/22/22 5:39 AM, Pierre Morel wrote: > > > > > > On 4/4/22 20:17, Matthew Rosato wrote: > > > > Use the associated kvm ioctl operation to enable adapter event > > > > notification > > > >

Re: [PATCH 0/8] s390x/pci: Fixing s390 vfio-pci ISM support

2021-01-21 Thread Niklas Schnelle
On 1/21/21 3:46 PM, Pierre Morel wrote: > > > On 1/21/21 2:37 PM, Niklas Schnelle wrote: >> >> >> On 1/21/21 1:30 PM, Pierre Morel wrote: > >>>> >>>> Just wanted to say that we've had a very similar discussion with >>>> Co

Re: [PATCH 0/8] s390x/pci: Fixing s390 vfio-pci ISM support

2021-01-21 Thread Niklas Schnelle
On 1/21/21 1:30 PM, Pierre Morel wrote: > > > On 1/21/21 10:58 AM, Niklas Schnelle wrote: >> >> >> On 1/21/21 9:27 AM, Pierre Morel wrote: >>> >>> >>> On 1/20/21 9:29 PM, Matthew Rosato wrote: >>>> On 1/20/21 2:18 PM, Pierre

Re: [PATCH 0/8] s390x/pci: Fixing s390 vfio-pci ISM support

2021-01-21 Thread Niklas Schnelle
On 1/21/21 9:27 AM, Pierre Morel wrote: > > > On 1/20/21 9:29 PM, Matthew Rosato wrote: >> On 1/20/21 2:18 PM, Pierre Morel wrote: >>> >>> > ...snip... > >> >> So, I mean I can change the code to be more permissive in that way (allow >> any device that doesn't have MSI-X capability to at

Re: [PATCH] s390x/s390-virtio-ccw: Reset PCI devices during subsystem reset

2020-10-15 Thread Niklas Schnelle
On 10/15/20 3:34 PM, Christian Borntraeger wrote: > > > On 15.10.20 15:32, Christian Borntraeger wrote: >> >> >> On 15.10.20 15:16, Matthew Rosato wrote: >>> Currently, a subsystem reset event leaves PCI devices enabled, causing >>> issues post-reset in the guest (an example would be after a

Re: [RFC PATCH] s390x/pci: vfio-pci breakage with disabled mem enforcement

2020-07-28 Thread Niklas Schnelle
On 7/28/20 2:52 PM, Alex Williamson wrote: > On Tue, 28 Jul 2020 11:33:55 +0200 > Niklas Schnelle wrote: > >> On 7/27/20 6:47 PM, Alex Williamson wrote: >>> On Mon, 27 Jul 2020 17:40:39 +0200 >>> Pierre Morel wrote: >>> >>>> On 2020-

Re: [RFC PATCH] s390x/pci: vfio-pci breakage with disabled mem enforcement

2020-07-28 Thread Niklas Schnelle
On 7/27/20 6:47 PM, Alex Williamson wrote: > On Mon, 27 Jul 2020 17:40:39 +0200 > Pierre Morel wrote: > >> On 2020-07-23 18:29, Alex Williamson wrote: >>> On Thu, 23 Jul 2020 11:13:55 -0400 >>> Matthew Rosato wrote: >>> I noticed that after kernel commit abafbc55 'vfio-pci:

Re: [RFC PATCH] s390x/pci: vfio-pci breakage with disabled mem enforcement

2020-07-28 Thread Niklas Schnelle
On 7/27/20 5:40 PM, Pierre Morel wrote: > > > On 2020-07-23 18:29, Alex Williamson wrote: >> On Thu, 23 Jul 2020 11:13:55 -0400 >> Matthew Rosato wrote: >> >>> I noticed that after kernel commit abafbc55 'vfio-pci: Invalidate mmaps >>> and block MMIO access on disabled memory' vfio-pci via

Re: [RFC PATCH] s390x/pci: vfio-pci breakage with disabled mem enforcement

2020-07-24 Thread Niklas Schnelle
On 7/24/20 11:46 AM, Niklas Schnelle wrote: > > > On 7/23/20 5:13 PM, Matthew Rosato wrote: >> I noticed that after kernel commit abafbc55 'vfio-pci: Invalidate mmaps >> and block MMIO access on disabled memory' vfio-pci via qemu on s390x >> fails spectacularl

Re: [RFC PATCH] s390x/pci: vfio-pci breakage with disabled mem enforcement

2020-07-24 Thread Niklas Schnelle
On 7/24/20 11:46 AM, Niklas Schnelle wrote: > > > On 7/23/20 5:13 PM, Matthew Rosato wrote: >> I noticed that after kernel commit abafbc55 'vfio-pci: Invalidate mmaps >> and block MMIO access on disabled memory' vfio-pci via qemu on s390x >> fails spectacularl

Re: [RFC PATCH] s390x/pci: vfio-pci breakage with disabled mem enforcement

2020-07-24 Thread Niklas Schnelle
On 7/23/20 5:13 PM, Matthew Rosato wrote: > I noticed that after kernel commit abafbc55 'vfio-pci: Invalidate mmaps > and block MMIO access on disabled memory' vfio-pci via qemu on s390x > fails spectacularly, with errors in qemu like: > > qemu-system-s390x: