On 06/01/2015 05:09 PM, Marcel Apfelbaum wrote:
In DSDT FDC0 declares the IO region as IO(Decode16, 0x03F2, 0x03F2, 0x00, 0x04).
Use the same in lpc_ich9 initialization code.
Now the floppy drive is detected correctly on Windows.
Signed-off-by: Marcel Apfelbaum <mar...@redhat.com>
---
hw/isa/lpc_ich9.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index dba7585..bc9afc6 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -494,7 +494,7 @@ static void ich9_lpc_machine_ready(Notifier *n, void
*opaque)
/* lpt */
pci_conf[0x82] |= 0x04;
}
- if (memory_region_present(io_as, 0x3f0)) {
+ if (memory_region_present(io_as, 0x3f2)) {
/* floppy */
pci_conf[0x82] |= 0x08;
}
Hi,
I cc-ed the developers involved in the mail thread:
https://lists.gnu.org/archive/html/qemu-block/2015-05/msg01043.html
and the FDC maintainer. I hope I didn't miss anybody.
I also have no knowledge of FDC, but I think the above patch is correct
and solves the problem of floppy disk missing in Windows for Q35 machines.
Comments appreciated as always.
Thanks,
Marcel
