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| author | Vasily Gorbik <gor@linux.ibm.com> | 2020-06-04 11:58:05 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-06-04 11:58:05 +0200 |
| commit | 0927e157b7e48a190500f785ce6d52d6fca8f14e (patch) | |
| tree | 02722e471fadc8e344011949fadde0e479fa0e63 /include | |
| parent | e1750a3d9abbea2ece29cac8dc5a6f5bc19c1492 (diff) | |
| parent | b2dd9a44a1098c96935c495570b663bd223a087e (diff) | |
Merge tag 'vfio-ccw-20200603-v2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw into features
vfio-ccw updates:
- accept requests without the prefetch bit set
- enable path handling via two new regions
* tag 'vfio-ccw-20200603-v2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw:
vfio-ccw: Add trace for CRW event
vfio-ccw: Wire up the CRW irq and CRW region
vfio-ccw: Introduce a new CRW region
vfio-ccw: Refactor IRQ handlers
vfio-ccw: Introduce a new schib region
vfio-ccw: Refactor the unregister of the async regions
vfio-ccw: Register a chp_event callback for vfio-ccw
vfio-ccw: Introduce new helper functions to free/destroy regions
vfio-ccw: document possible errors
vfio-ccw: Enable transparent CCW IPL from DASD
Link: https://lkml.kernel.org/r/20200603112716.332801-1-cohuck@redhat.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/vfio.h | 3 | ||||
| -rw-r--r-- | include/uapi/linux/vfio_ccw.h | 19 |
2 files changed, 22 insertions, 0 deletions
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 015516bcfaa3..907758cf6d60 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -378,6 +378,8 @@ struct vfio_region_gfx_edid { /* sub-types for VFIO_REGION_TYPE_CCW */ #define VFIO_REGION_SUBTYPE_CCW_ASYNC_CMD (1) +#define VFIO_REGION_SUBTYPE_CCW_SCHIB (2) +#define VFIO_REGION_SUBTYPE_CCW_CRW (3) /* * The MSIX mappable capability informs that MSIX data of a BAR can be mmapped @@ -577,6 +579,7 @@ enum { enum { VFIO_CCW_IO_IRQ_INDEX, + VFIO_CCW_CRW_IRQ_INDEX, VFIO_CCW_NUM_IRQS }; diff --git a/include/uapi/linux/vfio_ccw.h b/include/uapi/linux/vfio_ccw.h index cbecbf0cd54f..aa04f3aa6db0 100644 --- a/include/uapi/linux/vfio_ccw.h +++ b/include/uapi/linux/vfio_ccw.h @@ -34,4 +34,23 @@ struct ccw_cmd_region { __u32 ret_code; } __packed; +/* + * Used for processing commands that read the subchannel-information block + * Reading this region triggers a stsch() to hardware + * Note: this is controlled by a capability + */ +struct ccw_schib_region { +#define SCHIB_AREA_SIZE 52 + __u8 schib_area[SCHIB_AREA_SIZE]; +} __packed; + +/* + * Used for returning a Channel Report Word to userspace. + * Note: this is controlled by a capability + */ +struct ccw_crw_region { + __u32 crw; + __u32 pad; +} __packed; + #endif |