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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2013-07-25 16:37:37 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2013-08-30 12:49:30 +0200 |
| commit | 4e872a3fb024f0d742ef6b48be3afaab2c4453fc (patch) | |
| tree | 03f0057e5ceda9c4aa0f8b21b8e220adacfc0c04 | |
| parent | 268846ba93de2529630d623b6ded72cee1221106 (diff) | |
| download | qemu-4e872a3fb024f0d742ef6b48be3afaab2c4453fc.tar.gz | |
s390: provide I/O subsystem reset
Provide a function that resets the I/O subsystem.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Alexander Graf <agraf@suse.de>
| -rw-r--r-- | hw/s390x/s390-virtio-ccw.c | 15 | ||||
| -rw-r--r-- | target-s390x/cpu.h | 1 |
2 files changed, 16 insertions, 0 deletions
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index aebbbf1755..8fd46a92c9 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -17,6 +17,21 @@ #include "css.h" #include "virtio-ccw.h" +void io_subsystem_reset(void) +{ + DeviceState *css, *sclp; + + css = DEVICE(object_resolve_path_type("", "virtual-css-bridge", NULL)); + if (css) { + qdev_reset_all(css); + } + sclp = DEVICE(object_resolve_path_type("", + "s390-sclp-event-facility", NULL)); + if (sclp) { + qdev_reset_all(sclp); + } +} + static int virtio_ccw_hcall_notify(const uint64_t *args) { uint64_t subch_id = args[0]; diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h index 0878ab6678..af9de5ed0b 100644 --- a/target-s390x/cpu.h +++ b/target-s390x/cpu.h @@ -400,6 +400,7 @@ void cpu_unlock(void); typedef struct SubchDev SubchDev; #ifndef CONFIG_USER_ONLY +extern void io_subsystem_reset(void); SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid, uint16_t schid); bool css_subch_visible(SubchDev *sch); |