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On Thu, 23 May 2019 18:22:09 +0200 Michael Mueller <mimu at linux.ibm.com> wrote: > From: Halil Pasic <pasic at linux.ibm.com> > > Hypervisor needs to interact with the summary indicators, so these > need to be DMA memory as well (at least for protected virtualization > guests). > > Signed-off-by: Halil Pasic <pasic at linux.ibm.com> > --- > drivers/s390...

On Thu, 23 May 2019 18:22:09 +0200 Michael Mueller <mimu at linux.ibm.com> wrote: > From: Halil Pasic <pasic at linux.ibm.com> > > Hypervisor needs to interact with the summary indicators, so these > need to be DMA memory as well (at least for protected virtualization > guests). > > Signed-off-by: Halil Pasic <pasic at linux.ibm.com> > --- > drivers/s390...

On 03/02/2017 05:08 PM, Christian Borntraeger wrote: > Halil is doing a lot more work in the virtio area on s390 than I > do. Let's reflect the reality in the maintainers file. > > Signed-off-by: Christian Borntraeger <borntraeger at de.ibm.com> > Acked-by: Halil Pasic <pasic at linux.vnet.ibm.com> > Acked-by: Cornelia Huck &l...

On 03/02/2017 05:08 PM, Christian Borntraeger wrote: > Halil is doing a lot more work in the virtio area on s390 than I > do. Let's reflect the reality in the maintainers file. > > Signed-off-by: Christian Borntraeger <borntraeger at de.ibm.com> > Acked-by: Halil Pasic <pasic at linux.vnet.ibm.com> > Acked-by: Cornelia Huck &l...

On 01/26/2017 08:20 PM, Michael S. Tsirkin wrote: > On Thu, Jan 26, 2017 at 06:39:14PM +0100, Halil Pasic wrote: >> >> Hi! >> >> Recently I have been investigating some strange migration problems on >> s390x. >> >> It turned out under certain circumstances vhost_net corrupts avail.idx by >> using wrong endianness. [..] >> -------------------...

On 01/26/2017 08:20 PM, Michael S. Tsirkin wrote: > On Thu, Jan 26, 2017 at 06:39:14PM +0100, Halil Pasic wrote: >> >> Hi! >> >> Recently I have been investigating some strange migration problems on >> s390x. >> >> It turned out under certain circumstances vhost_net corrupts avail.idx by >> using wrong endianness. [..] >> -------------------...

...lly supposed to initialize, and fix virtio_net by removing the >> reset from vhost_vq_init_access. >> >> With the above, there is no reason for vhost_reset_is_le to do just half >> of the job. Let us make vhost_reset_is_le reinitialize is_le. >> >> Signed-off-by: Halil Pasic <pasic at linux.vnet.ibm.com> >> Reported-by: Michael A. Tebolt <miket at us.ibm.com> >> Reported-by: Dr. David Alan Gilbert <dgilbert at redhat.com> >> Fixes: commit 2751c9882b94 ("vhost: cross-endian support for legacy devices") >> --- &gt...

...lly supposed to initialize, and fix virtio_net by removing the >> reset from vhost_vq_init_access. >> >> With the above, there is no reason for vhost_reset_is_le to do just half >> of the job. Let us make vhost_reset_is_le reinitialize is_le. >> >> Signed-off-by: Halil Pasic <pasic at linux.vnet.ibm.com> >> Reported-by: Michael A. Tebolt <miket at us.ibm.com> >> Reported-by: Dr. David Alan Gilbert <dgilbert at redhat.com> >> Fixes: commit 2751c9882b94 ("vhost: cross-endian support for legacy devices") >> --- &gt...

On Tue, Mar 03, 2020 at 03:12:52PM +0100, Halil Pasic wrote: > On Thu, 13 Feb 2020 13:37:26 +0100 > Halil Pasic <pasic at linux.ibm.com> wrote: > > > Two patches are handling new edge cases introduced by doing DMA mappings > > (which can fail) in virtio core. > > > > I stumbled upon this while stress test...

...(which can fail) in virtio core. I stumbled upon this while stress testing I/O for Protected Virtual Machines. I deliberately chose a tiny swiotlb size and have generated load with fio. With more than one virtio-blk disk in use I experienced hangs. The goal of this series is to fix those hangs. Halil Pasic (2): virtio-blk: fix hw_queue stopped on arbitrary error virtio-blk: improve virtqueue error to BLK_STS drivers/block/virtio_blk.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) base-commit: 39bed42de2e7d74686a2d5a45638d6a5d7e7d473 -- 2.17.1

...(which can fail) in virtio core. I stumbled upon this while stress testing I/O for Protected Virtual Machines. I deliberately chose a tiny swiotlb size and have generated load with fio. With more than one virtio-blk disk in use I experienced hangs. The goal of this series is to fix those hangs. Halil Pasic (2): virtio-blk: fix hw_queue stopped on arbitrary error virtio-blk: improve virtqueue error to BLK_STS drivers/block/virtio_blk.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) base-commit: 39bed42de2e7d74686a2d5a45638d6a5d7e7d473 -- 2.17.1

On Fri, Jan 27, 2017 at 02:37:47PM +0100, Greg Kurz wrote: > On Fri, 27 Jan 2017 13:24:13 +0100 > Halil Pasic <pasic at linux.vnet.ibm.com> wrote: > > > On 01/26/2017 08:20 PM, Michael S. Tsirkin wrote: > > > On Thu, Jan 26, 2017 at 06:39:14PM +0100, Halil Pasic wrote: > > >> > > >> Hi! > > >> > > >> Recently I have been inves...

On Fri, Jan 27, 2017 at 02:37:47PM +0100, Greg Kurz wrote: > On Fri, 27 Jan 2017 13:24:13 +0100 > Halil Pasic <pasic at linux.vnet.ibm.com> wrote: > > > On 01/26/2017 08:20 PM, Michael S. Tsirkin wrote: > > > On Thu, Jan 26, 2017 at 06:39:14PM +0100, Halil Pasic wrote: > > >> > > >> Hi! > > >> > > >> Recently I have been inves...

On 05.05.19 13:15, Cornelia Huck wrote: > On Sat, 4 May 2019 16:03:40 +0200 > Halil Pasic <pasic at linux.ibm.com> wrote: > >> On Fri, 3 May 2019 16:04:48 -0400 >> "Michael S. Tsirkin" <mst at redhat.com> wrote: >> >>> On Fri, May 03, 2019 at 11:17:24AM +0200, Cornelia Huck wrote: >>>> On Fri, 26 Apr 2019 20:32:36...

On 05.05.19 13:15, Cornelia Huck wrote: > On Sat, 4 May 2019 16:03:40 +0200 > Halil Pasic <pasic at linux.ibm.com> wrote: > >> On Fri, 3 May 2019 16:04:48 -0400 >> "Michael S. Tsirkin" <mst at redhat.com> wrote: >> >>> On Fri, May 03, 2019 at 11:17:24AM +0200, Cornelia Huck wrote: >>>> On Fri, 26 Apr 2019 20:32:36...

On Fri, 3 May 2019 16:04:48 -0400 "Michael S. Tsirkin" <mst at redhat.com> wrote: > On Fri, May 03, 2019 at 11:17:24AM +0200, Cornelia Huck wrote: > > On Fri, 26 Apr 2019 20:32:36 +0200 > > Halil Pasic <pasic at linux.ibm.com> wrote: > > > > > The commit 2a2d1382fe9d ("virtio: Add improved queue allocation API") > > > establishes a new way of allocating virtqueues (as a part of the effort > > > that taught DMA to virtio rings). > > &gt...

On Fri, 3 May 2019 16:04:48 -0400 "Michael S. Tsirkin" <mst at redhat.com> wrote: > On Fri, May 03, 2019 at 11:17:24AM +0200, Cornelia Huck wrote: > > On Fri, 26 Apr 2019 20:32:36 +0200 > > Halil Pasic <pasic at linux.ibm.com> wrote: > > > > > The commit 2a2d1382fe9d ("virtio: Add improved queue allocation API") > > > establishes a new way of allocating virtqueues (as a part of the effort > > > that taught DMA to virtio rings). > > &gt...

Michael, Jason, Halil is doing more work on virtio-ccw and virtio in general than I do. I seem to be busy enough with the KVM/s390 maintainership. So it is time to reflect reality in the maintainer file. Lets start with the kernel. Christian Borntraeger (1): s390/virtio: change maintainership MAINTAINERS | 2 +- 1...

Michael, Jason, Halil is doing more work on virtio-ccw and virtio in general than I do. I seem to be busy enough with the KVM/s390 maintainership. So it is time to reflect reality in the maintainer file. Lets start with the kernel. Christian Borntraeger (1): s390/virtio: change maintainership MAINTAINERS | 2 +- 1...

On Fri, 26 Apr 2019 20:32:36 +0200 Halil Pasic <pasic at linux.ibm.com> wrote: > The commit 2a2d1382fe9d ("virtio: Add improved queue allocation API") > establishes a new way of allocating virtqueues (as a part of the effort > that taught DMA to virtio rings). > > In the future we will want virtio-ccw to u...