diff options
| author | Fei Li | 2017-02-17 08:40:41 +0100 |
|---|---|---|
| committer | Christian Borntraeger | 2017-07-14 12:29:47 +0200 |
| commit | 2283f4d67a0e05ae056d2077f65496c3c4df5d6f (patch) | |
| tree | f7a5b032321f60bec43789b65a1c517f74df0666 /hw/s390x/css.c | |
| parent | s390x/flic: introduce inject_airq callback (diff) | |
| download | qemu-2283f4d67a0e05ae056d2077f65496c3c4df5d6f.tar.gz qemu-2283f4d67a0e05ae056d2077f65496c3c4df5d6f.tar.xz qemu-2283f4d67a0e05ae056d2077f65496c3c4df5d6f.zip | |
s390x/sic: realize SIC handling
Currently, we do nothing for the SIC instruction, but we need to
implement it properly. Let's add proper handling in the backend code.
Co-authored-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Signed-off-by: Fei Li <sherrylf@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'hw/s390x/css.c')
| -rw-r--r-- | hw/s390x/css.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/hw/s390x/css.c b/hw/s390x/css.c index 1fcbc84581..7b82176bc2 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -521,6 +521,32 @@ void css_conditional_io_interrupt(SubchDev *sch) } } +int css_do_sic(CPUS390XState *env, uint8_t isc, uint16_t mode) +{ + S390FLICState *fs = s390_get_flic(); + S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); + int r; + + if (env->psw.mask & PSW_MASK_PSTATE) { + r = -PGM_PRIVILEGED; + goto out; + } + + trace_css_do_sic(mode, isc); + switch (mode) { + case SIC_IRQ_MODE_ALL: + case SIC_IRQ_MODE_SINGLE: + break; + default: + r = -PGM_OPERAND; + goto out; + } + + r = fsc->modify_ais_mode(fs, isc, mode) ? -PGM_OPERATION : 0; +out: + return r; +} + void css_adapter_interrupt(uint8_t isc) { uint32_t io_int_word = (isc << 27) | IO_INT_WORD_AI; |