@@ -663,12 +663,16 @@ static void dp8393x_write(void *opaque, hwaddr addr, uint64_t data,
qemu_flush_queued_packets(qemu_get_queue(s->nic));
}
break;
- /* Ignore least significant bit */
+ /* The guest is required to store aligned pointers here */
case SONIC_RSA:
case SONIC_REA:
case SONIC_RRP:
case SONIC_RWP:
- s->regs[reg] = val & 0xfffe;
+ if (s->regs[SONIC_DCR] & SONIC_DCR_DW) {
+ s->regs[reg] = val & 0xfffc;
+ } else {
+ s->regs[reg] = val & 0xfffe;
+ }
break;
/* Invert written value for some registers */
case SONIC_CRCT: