On Thu, 4 Aug 2016, Mark Cave-Ayland wrote:
This corresponds to this code in QEMU's hw/ide/macio.c:
if (s->lba == -1) { /* Non-block ATAPI transfer - just copy to RAM */ s->io_buffer_size = MIN(s->io_buffer_size, io->len); dma_memory_write(&address_space_memory, io->addr, s->io_buffer, s->io_buffer_size); ide_atapi_cmd_ok(s); m->dma_active = false; goto done; }
Here the QEMU block code should have already placed the generated TOC into s->io_buffer and DMA the first 14 bytes into RAM but for some reason that's not happening so the code is looping looking for a signature that isn't present.
Zoltan: this is very similar to the related issue you had with your MorphOS tests which this code should have resolved, unless I managed to get something wrong in my last rewrite of the macio code?
The above code did fix this in MorphOS back then but I haven't tried it recently (no time for it now). But I'd assume other OS-es would also be affected if it broke. Maybe to cross check you could also try OS X DP with a version before your last rewrite.
Regards, BALATON Zoltan