ShuriZma
/
xemu
mirror of https://github.com/xemu-project/xemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

macio: set res_count value to 0 after non-block ATAPI DMA transfers 

res_count should be set to the number of outstanding bytes after a DBDMA
request. Unfortunately this wasn't being set to zero by the non-block
transfer codepath meaning drivers that checked the descriptor result for
such requests (e.g reading the CDROM TOC) would assume from a non-zero result
that the transfer had failed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Mark Cave-Ayland 2016-08-05 08:30:02 +01:00 committed by David Gibson
parent 3c0c47e346
commit 16275edb34
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
hw/ide/macio.c
View File

@ -273,6 +273,7 @@ static void pmac_ide_atapi_transfer_cb(void *opaque, int ret)
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);
io->len = 0;
ide_atapi_cmd_ok(s);
m->dma_active = false;
goto done;