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s390x/sic: realize SIC handling

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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>
This commit is contained in:
Fei Li 2017-02-17 15:40:41 +08:00 • committed by Christian Borntraeger
parent 1622ffd515
commit 2283f4d67a
4 changed files with 44 additions and 1 deletions
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26
hw/s390x/css.c
View file

@ -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;