Am 08.04.2011 09:15, schrieb Amit Shah: > Handle GET_EVENT_STATUS_NOTIFICATION's No Event Available status in its > own function. > > Also ensure the buffer the driver sent us is big enough to fill in all > the data we have -- else just fill in as much as the buffer can hold.
This is unnecessary and in fact none of the IDE code does this. s->io_buffer isn't guest memory, but an internal buffer that is allocated like this: s->io_buffer = qemu_memalign(2048, IDE_DMA_BUF_SECTORS*512 + 4); So that's more than enough for storing four bytes. ide_atapi_cmd_reply() takes care of making only max_size bytes visible to the guest. Kevin
