Hello,
I’ve
applied the Xen Battery Management patches on Xen 3.4 unstable but I’m
experiencing some troubles. I managed to make it work in non-pass-through mode
but I cannot apparently use the pass-through mode. The function is_battery_pt_feasible
returns 0. I think I understood how this function checks the possibility to
enable the pass-through mode or not on the current hardware but I would have
some questions though.
#define BATTERY_PORT_1
0xb2
#define BATTERY_PORT_2
0x86
#define BATTERY_PORT_3
0x88
#define BATTERY_OP_INIT
0x7b
#define BATTERY_OP_SET_INFO_TYPE
0x7c /*BIF or BST */
#define BATTERY_OP_GET_DATA_LENGTH
0x79
#define BATTERY_OP_GET_DATA
0x7d
Regarding
the discussions that followed the patch release, it’s obvious that even
if the patch is supposed to be working on most of the hardware that implements
CMBattery in their ACPI tables, it might be necessary to change these
hard-coded values for some machines. My question is: where can I find the right
I/O ports addresses and the right op codes for a specific hardware? I thought
it could be found in the ACPI tables but I didn’t find anything. Where
have these values been found to develop the patch?
Basically,
I just would like to understand how to make this patch work on my machine.
Any help would be greatly appreciated.
Thanks.
Christophe Vauthier.
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