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| author | Peter Maydell | 2014-03-07 16:58:27 +0100 |
|---|---|---|
| committer | Peter Maydell | 2014-03-07 16:58:28 +0100 |
| commit | c3f8d28e455bff9bde2b81bd0c9b1d437b88c159 (patch) | |
| tree | 971283ecdb6318e37aaef8efce195b78ce27917b /hw/s390x/css.c | |
| parent | configure: Always build with -fno-common (diff) | |
| parent | s390x/virtio-ccw: Adapter interrupt support. (diff) | |
| download | qemu-c3f8d28e455bff9bde2b81bd0c9b1d437b88c159.tar.gz qemu-c3f8d28e455bff9bde2b81bd0c9b1d437b88c159.tar.xz qemu-c3f8d28e455bff9bde2b81bd0c9b1d437b88c159.zip | |
Merge remote-tracking branch 'remotes/cohuck/tags/virtio-ccw-20140305' into staging
One patch introducing support for adapter interrupts in virtio-ccw.
This improves performance for those guests that issue the new
CCW_CMD_SET_IND_ADAPTER channel command.
# gpg: Signature made Wed 05 Mar 2014 08:48:18 GMT using RSA key ID C6F02FAF
# gpg: Can't check signature: public key not found
* remotes/cohuck/tags/virtio-ccw-20140305:
s390x/virtio-ccw: Adapter interrupt support.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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) |