diff options
| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2013-02-06 10:31:37 +0100 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2014-03-05 09:42:05 +0100 |
| commit | 7e7494627f43b26c565a132639d82de260c26cc8 (patch) | |
| tree | cd1008e1ead2a515aefab64a4cf75291637a5866 /hw/s390x/css.c | |
| parent | f55ea6297cc0224fe4934b90ff5343b620b14669 (diff) | |
| download | qemu-7e7494627f43b26c565a132639d82de260c26cc8.tar.gz | |
s390x/virtio-ccw: Adapter interrupt support.
Handle the new CCW_CMD_SET_IND_ADAPTER command enabling adapter interrupts
on guest request. When active, host->guest notifications will be handled
via global_indicator -> queue indicators instead of queue indicators +
subchannel I/O interrupt. Indicators for virtqueues may be present at an
offset.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw/s390x/css.c')
| -rw-r--r-- | hw/s390x/css.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/hw/s390x/css.c b/hw/s390x/css.c index 75b04b45af..7074d2b3d5 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -116,6 +116,15 @@ void css_conditional_io_interrupt(SubchDev *sch) } } +void css_adapter_interrupt(uint8_t isc) +{ + S390CPU *cpu = s390_cpu_addr2state(0); + uint32_t io_int_word = (isc << 27) | IO_INT_WORD_AI; + + trace_css_adapter_interrupt(isc); + s390_io_interrupt(cpu, 0, 0, 0, io_int_word); +} + static void sch_handle_clear_func(SubchDev *sch) { PMCW *p = &sch->curr_status.pmcw; @@ -1259,6 +1268,7 @@ void css_reset_sch(SubchDev *sch) sch->channel_prog = 0x0; sch->last_cmd_valid = false; sch->orb = NULL; + sch->thinint_active = false; } void css_reset(void) |