search for: ccw

Displaying 20 results from an estimated 786 matches for "ccw".

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2023 Mar 05
0
[PATCH AUTOSEL 6.2 05/16] s390/virtio: sort out physical vs virtual pointers usage
...indentical to physical ones. Reviewed-by: Nico Boehr <nrb at linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev at linux.ibm.com> Signed-off-by: Janosch Frank <frankja at linux.ibm.com> Signed-off-by: Sasha Levin <sashal at kernel.org> --- drivers/s390/virtio/virtio_ccw.c | 46 +++++++++++++++++--------------- 1 file changed, 24 insertions(+), 22 deletions(-) diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index a10dbe632ef9b..954fc31b4bc74 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -36...
2023 Mar 05
0
[PATCH AUTOSEL 6.1 05/15] s390/virtio: sort out physical vs virtual pointers usage
...indentical to physical ones. Reviewed-by: Nico Boehr <nrb at linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev at linux.ibm.com> Signed-off-by: Janosch Frank <frankja at linux.ibm.com> Signed-off-by: Sasha Levin <sashal at kernel.org> --- drivers/s390/virtio/virtio_ccw.c | 46 +++++++++++++++++--------------- 1 file changed, 24 insertions(+), 22 deletions(-) diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index a10dbe632ef9b..954fc31b4bc74 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -36...
2019 Jun 06
0
[PATCH v4 7/8] virtio/s390: use DMA memory for ccw I/O and classic notifiers
Before virtio-ccw could get away with not using DMA API for the pieces of memory it does ccw I/O with. With protected virtualization this has to change, since the hypervisor needs to read and sometimes also write these pieces of memory. The hypervisor is supposed to poke the classic notifiers, if these are used, ou...
2019 Jun 12
0
[PATCH v5 7/8] virtio/s390: use DMA memory for ccw I/O and classic notifiers
Before virtio-ccw could get away with not using DMA API for the pieces of memory it does ccw I/O with. With protected virtualization this has to change, since the hypervisor needs to read and sometimes also write these pieces of memory. The hypervisor is supposed to poke the classic notifiers, if these are used, ou...
2019 Apr 26
0
[PATCH 09/10] virtio/s390: use DMA memory for ccw I/O and classic notifiers
Before virtio-ccw could get away with not using DMA API for the pieces of memory it does ccw I/O with. With protected virtualization this has to change, since the hypervisor needs to read and sometimes also write these pieces of memory. The hypervisor is supposed to poke the classic notifiers, if these are used, ou...
2019 May 23
0
[PATCH v2 7/8] virtio/s390: use DMA memory for ccw I/O and classic notifiers
From: Halil Pasic <pasic at linux.ibm.com> Before virtio-ccw could get away with not using DMA API for the pieces of memory it does ccw I/O with. With protected virtualization this has to change, since the hypervisor needs to read and sometimes also write these pieces of memory. The hypervisor is supposed to poke the classic notifiers, if these are used, ou...
2019 May 29
0
[PATCH v3 7/8] virtio/s390: use DMA memory for ccw I/O and classic notifiers
From: Halil Pasic <pasic at linux.ibm.com> Before virtio-ccw could get away with not using DMA API for the pieces of memory it does ccw I/O with. With protected virtualization this has to change, since the hypervisor needs to read and sometimes also write these pieces of memory. The hypervisor is supposed to poke the classic notifiers, if these are used, ou...
2015 Sep 11
2
[PATCH RFC 0/2] virtio-ccw: new status accessor in device
These patches implement the new read status command in qemu and bump the revision to 2 (as this ccw is currently the only thing new with that revision). Patches are on top of v2 of "virtio-1/virtio-ccw related patches". Pierre Morel (2): s390x/virtio-ccw: respond to READ_STATUS command s390x/virtio-ccw: set revision 2 as maximum revision number hw/s390x/virtio-ccw.c | 20 +++++++...
2015 Sep 11
2
[PATCH RFC 0/2] virtio-ccw: new status accessor in device
These patches implement the new read status command in qemu and bump the revision to 2 (as this ccw is currently the only thing new with that revision). Patches are on top of v2 of "virtio-1/virtio-ccw related patches". Pierre Morel (2): s390x/virtio-ccw: respond to READ_STATUS command s390x/virtio-ccw: set revision 2 as maximum revision number hw/s390x/virtio-ccw.c | 20 +++++++...
2016 Apr 11
2
[PATCH 0/2] virtio-ccw: new status accessor in device
These patches implement the new read status command in qemu and bump the revision to 2 (as this ccw is currently the only thing new with that revision); see "[PATCH v2 1/1] ccw: add CCW_CMD_READ_STATUS" for details. Note that we'll need to add some compat machine handling when this is added (not done here, as the machine level is not clear yet). Changes from the RFC (back in Septe...
2016 Apr 11
2
[PATCH 0/2] virtio-ccw: new status accessor in device
These patches implement the new read status command in qemu and bump the revision to 2 (as this ccw is currently the only thing new with that revision); see "[PATCH v2 1/1] ccw: add CCW_CMD_READ_STATUS" for details. Note that we'll need to add some compat machine handling when this is added (not done here, as the machine level is not clear yet). Changes from the RFC (back in Septe...
2014 Dec 09
2
[PATCH v3 3/6] virtio: allow finalize_features to fail
...include/linux/virtio_config.h | 3 ++- > drivers/lguest/lguest_device.c | 4 +++- > drivers/misc/mic/card/mic_virtio.c | 4 +++- > drivers/remoteproc/remoteproc_virtio.c | 4 +++- > drivers/s390/kvm/kvm_virtio.c | 4 +++- > drivers/s390/kvm/virtio_ccw.c | 6 ++++-- > drivers/virtio/virtio.c | 21 ++++++++++++++------- > drivers/virtio/virtio_mmio.c | 4 +++- > drivers/virtio/virtio_pci.c | 4 +++- > 9 files changed, 38 insertions(+), 16 deletions(-) > > diff --git a/drivers/s390...
2014 Dec 09
2
[PATCH v3 3/6] virtio: allow finalize_features to fail
...include/linux/virtio_config.h | 3 ++- > drivers/lguest/lguest_device.c | 4 +++- > drivers/misc/mic/card/mic_virtio.c | 4 +++- > drivers/remoteproc/remoteproc_virtio.c | 4 +++- > drivers/s390/kvm/kvm_virtio.c | 4 +++- > drivers/s390/kvm/virtio_ccw.c | 6 ++++-- > drivers/virtio/virtio.c | 21 ++++++++++++++------- > drivers/virtio/virtio_mmio.c | 4 +++- > drivers/virtio/virtio_pci.c | 4 +++- > 9 files changed, 38 insertions(+), 16 deletions(-) > > diff --git a/drivers/s390...
2014 Dec 11
0
[PATCH RFC v6 11/20] s390x/virtio-ccw: support virtio-1 set_vq format
Support the new CCW_CMD_SET_VQ format for virtio-1 devices. While we're at it, refactor the code a bit and enforce big endian fields (which had always been required, even for legacy). Reviewed-by: Thomas Huth <thuth at linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> ---...
2014 Dec 11
0
[PATCH RFC v6 11/20] s390x/virtio-ccw: support virtio-1 set_vq format
Support the new CCW_CMD_SET_VQ format for virtio-1 devices. While we're at it, refactor the code a bit and enforce big endian fields (which had always been required, even for legacy). Reviewed-by: Thomas Huth <thuth at linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> ---...
2009 Feb 26
2
BUG: Mount/Unmount Loop
...`* .config make oldconfig make-kpkg clean make menuconfig # acticate filesystems/btrfs make-kpkg kernel_image --initrd --revision=marc.1 dpkg -i ../*marc.1*.deb reboot - Restart System ## Initial Test Setup * setup environment variables DEVICES="$(echo /dev/disk/by-path/ccw-0.0.{3320..3327})" # adapt for other platforms TESTMNT="/mnt" DEVNOS="$(echo {3320..3327})" # only needed on system z * Sysrq sysctl -w kernel.sysrq=1 In case of a crash do: echo u >/proc/sysrq-trigger echo b >/proc/sysrq-trigger * z/VM test setup...
2016 Apr 11
0
[PATCH 1/2] s390x/virtio-ccw: respond to READ_STATUS command
From: Pierre Morel <pmorel at linux.vnet.ibm.com> This patch adds the response to the READ_STATUS CCW command. Signed-off-by: Pierre Morel <pmorel at linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- hw/s390x/virtio-ccw.c | 20 ++++++++++++++++++++ hw/s390x/virtio-ccw.h | 1 + 2 files changed, 21 insertions(+) diff --git a/hw/s390x/virtio-ccw.c b/hw/...
2013 Jun 07
2
[PATCH RFC 0/2] KVM: s390: virtio-ccw adapter interrupts.
Hi, here's the guest driver support for adapter interrupts in virtio-ccw. We use one summary indicator per page of indicators. For each device, we try to find a space in an indicator where all of its virtqueues fit. Locking probably needs some more love, but it seems to work fine so far. Cornelia Huck (2): KVM: s390: virtio-ccw: Handle command rejects. KVM: s390:...
2013 Jun 07
2
[PATCH RFC 0/2] KVM: s390: virtio-ccw adapter interrupts.
Hi, here's the guest driver support for adapter interrupts in virtio-ccw. We use one summary indicator per page of indicators. For each device, we try to find a space in an indicator where all of its virtqueues fit. Locking probably needs some more love, but it seems to work fine so far. Cornelia Huck (2): KVM: s390: virtio-ccw: Handle command rejects. KVM: s390:...
2013 Jun 07
1
[PATCH RFC] qemu: Adapter interrupts for virtio-ccw.
Hi, here's the qemu patch that implements the new adapter indicators ccw in virtio-ccw and injects adapter interrupts for the devices enabled for it. Cornelia Huck (1): s390/virtio-ccw: Adapter interrupt support. hw/s390x/css.c | 10 ++++++++ hw/s390x/css.h | 2 ++ hw/s390x/virtio-ccw.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++- hw...