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Re: [PATCH v4 6/6] vfio-ccw: Add support for the CRW region and IRQ
From: |
Cornelia Huck |
Subject: |
Re: [PATCH v4 6/6] vfio-ccw: Add support for the CRW region and IRQ |
Date: |
Wed, 6 May 2020 18:01:10 +0200 |
On Tue, 5 May 2020 14:57:57 +0200
Eric Farman <address@hidden> wrote:
> From: Farhan Ali <address@hidden>
>
> The crw region can be used to obtain information about
> Channel Report Words (CRW) from vfio-ccw driver.
>
> Currently only channel-path related CRWs are passed to
> QEMU from vfio-ccw driver.
>
> Signed-off-by: Farhan Ali <address@hidden>
> Signed-off-by: Eric Farman <address@hidden>
> ---
>
> Notes:
> v3->v4:
> - Merge region patch into IRQ patch [CH]
> - Rework the testing/clearing notifier and reading region [CH]
>
> v2->v3:
> - Remove "size==0" check in CRW notifier [CH]
> - Remove intermediate rsc/erc variables, use css_queue_crw_cont() [CH]
> - s/crw0/crw/ [CH]
>
> v1->v2:
> - Add a loop to continually read region while data is
> present, queueing CRWs as found [CH]
>
> v0->v1: [EF]
> - Fixed copy/paste error in error message (s/schib/CRW)
> - Check vcdev->crw_region before registering the irq,
> in case host kernel does not have matching support
> - Split the refactoring changes to an earlier (new) patch
> (and don't remove the "num_irqs" check in the register
> routine, but adjust it to the check the input variable)
> - Don't revert the cool vfio_set_irq_signaling() stuff
> - Unregister CRW IRQ before IO IRQ in unrealize
> - s/crw1/crw0/
>
> hw/vfio/ccw.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 73 insertions(+)
>
Reviewed-by: Cornelia Huck <address@hidden>
- [PATCH v4 0/6] s390x/vfio-ccw: Channel Path Handling [QEMU], Eric Farman, 2020/05/05
- [PATCH v4 3/6] vfio-ccw: Add support for the schib region, Eric Farman, 2020/05/05
- [PATCH v4 4/6] vfio-ccw: Refactor ccw irq handler, Eric Farman, 2020/05/05
- [PATCH v4 5/6] s390x/css: Refactor the css_queue_crw() routine, Eric Farman, 2020/05/05
- [PATCH v4 1/6] linux-headers: update, Eric Farman, 2020/05/05
- [PATCH v4 6/6] vfio-ccw: Add support for the CRW region and IRQ, Eric Farman, 2020/05/05
- Re: [PATCH v4 6/6] vfio-ccw: Add support for the CRW region and IRQ,
Cornelia Huck <=
- [PATCH v4 2/6] vfio-ccw: Refactor cleanup of regions, Eric Farman, 2020/05/05
- Re: [PATCH v4 0/6] s390x/vfio-ccw: Channel Path Handling [QEMU], Cornelia Huck, 2020/05/06