diff options
| author | Xiao Feng Ren | 2017-05-17 02:48:10 +0200 |
|---|---|---|
| committer | Cornelia Huck | 2017-05-19 12:29:01 +0200 |
| commit | 8ca2b376b47fff58f7ab6f16d86a66d4af3a2be2 (patch) | |
| tree | e8cfa27be91fd4fc8b4af613163635d8c400d72a /include/hw | |
| parent | vfio/ccw: get irqs info and set the eventfd fd (diff) | |
| download | qemu-8ca2b376b47fff58f7ab6f16d86a66d4af3a2be2.tar.gz qemu-8ca2b376b47fff58f7ab6f16d86a66d4af3a2be2.tar.xz qemu-8ca2b376b47fff58f7ab6f16d86a66d4af3a2be2.zip | |
s390x/css: introduce and realize ccw-request callback
Introduce a new callback on subchannel to handle ccw-request.
Realize the callback in vfio-ccw device. Besides, resort to
the event notifier handler to handling the ccw-request results.
1. Pread the I/O results via MMIO region.
2. Update the scsw info to guest.
3. Inject an I/O interrupt to notify guest the I/O result.
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Xiao Feng Ren <renxiaof@linux.vnet.ibm.com>
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Message-Id: <20170517004813.58227-11-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/s390x/css.h | 2 | ||||
| -rw-r--r-- | include/hw/s390x/s390-ccw.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/hw/s390x/css.h b/include/hw/s390x/css.h index 60ff83e9c1..a932f91edb 100644 --- a/include/hw/s390x/css.h +++ b/include/hw/s390x/css.h @@ -137,6 +137,8 @@ void css_sch_build_virtual_schib(SubchDev *sch, uint8_t chpid, uint8_t type); int css_sch_build_schib(SubchDev *sch, CssDevId *dev_id); unsigned int css_find_free_chpid(uint8_t cssid); uint16_t css_build_subchannel_id(SubchDev *sch); +void copy_scsw_to_guest(SCSW *dest, const SCSW *src); +void css_inject_io_interrupt(SubchDev *sch); void css_reset(void); void css_reset_sch(SubchDev *sch); void css_queue_crw(uint8_t rsc, uint8_t erc, int chain, uint16_t rsid); diff --git a/include/hw/s390x/s390-ccw.h b/include/hw/s390x/s390-ccw.h index b58d8e9ca3..9f45cf1347 100644 --- a/include/hw/s390x/s390-ccw.h +++ b/include/hw/s390x/s390-ccw.h @@ -33,6 +33,7 @@ typedef struct S390CCWDeviceClass { CCWDeviceClass parent_class; void (*realize)(S390CCWDevice *dev, char *sysfsdev, Error **errp); void (*unrealize)(S390CCWDevice *dev, Error **errp); + int (*handle_request) (ORB *, SCSW *, void *); } S390CCWDeviceClass; #endif |