static void openpic_msi_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { OpenPICState *opp = opaque; int idx = opp->irq_msi; int srs, ibs; DPRINTF("%s: addr " TARGET_FMT_plx " <= %08x\n", __func__, addr, val); if (addr & 0xF) { return; } switch (addr) { case MSIIR_OFFSET: srs = val >> MSIIR_SRS_SHIFT; idx += srs; ibs = (val & MSIIR_IBS_MASK) >> MSIIR_IBS_SHIFT; opp->msi[srs].msir |= 1 << ibs; openpic_set_irq(opp, idx, 1); break; default: /* most registers are read-only, thus ignored */ break; } }