tree a31d440dffd8173bc9f9c39bcd8d09dec7f40d89
parent 9e472e101f37233f4e32d181d2fee29014c1cf2f
author aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> 1223561974 +0000
committer aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> 1223561974 +0000

Fix IDE DIAGNOSE for packet devices (Vincent Sanders)

The DIAGNOSE command in the qemu IDE implementation has an error when
use dfor packet devices. 

The status register value is dependant on the drive being a packet
device or not, this patch corrects the returned status.

From the ATA/PI specification (V6 draft):

"If the device implements the PACKET command feature set, the device
SHALL clear bits 6,5,4,3,2 and 0 in the Status register to zero."

A selection of physical devices have been checked and do conform to
the specifications behaviour.

Signed-off-by: Vincent Sanders <vince@simtec.co.uk>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5452 c046a42c-6fe2-441c-8c8c-71466251a162