Set initial value of AFSR register properly (Robert Reif)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3739 c046a42c-6fe2-441c-8c8c-71466251a162

hw/iommu.c

@@ -311,6 +311,7 @@ static void iommu_reset(void *opaque)
     s->iostart = 0;
     s->regs[IOMMU_CTRL] = s->version;
     s->regs[IOMMU_ARBEN] = IOMMU_MID;
+    s->regs[IOMMU_AFSR] = 0x00800000;
 }
 
 void *iommu_init(target_phys_addr_t addr, uint32_t version)