Am 02.12.2010 23:24, schrieb Nicholas A. Bellinger: > The usage of a inverted is_write with cpu_physical_memory_map() also > seems to be the case in dma-helpers.c:dma_brdv_cb(): > > mem = cpu_physical_memory_map(cur_addr, &cur_len, !dbs->is_write); > > After changing to an inverted is_write in megasas.v3/megasas-upstream-v1 > code, this still does *not* seem to make a difference wrt to the 64-bit > Win7 case, and the same BSOD appears.. In any event, we should verify > this with QEMU folks in terms of what the proper usage of is_write for > cpu_physical_memory_map(). Gerd and Kevin comments here..?
I haven't looked at the SCSI code, but the dma-helpers.c one is easy to explain: If you read from the disk, you write to memory. Kevin
