david/ipxe
david
/
ipxe
Archived
1
0
Fork 0
Code

[pxe] Notify BIOS via INT 1a,564e for each new network device 

Use INT 1a,564e to notify the BIOS of each network device that we
detect.  This provides an opportunity for the BIOS to implement
platform policy such as changing the MAC address by issuing a call to
PXENV_UNDI_SET_STATION_ADDRESS.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2015-09-15 13:43:35 +01:00
parent 3b586c8e29
commit 1852803e46
1 changed files with 26 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/arch/i386/interface/pxe/pxe_call.c
View File

@ -26,6 +26,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <ipxe/uaccess.h>
#include <ipxe/init.h>
#include <ipxe/profile.h>
#include <ipxe/netdevice.h>
#include <setjmp.h>
#include <registers.h>
#include <biosint.h>
@ -358,6 +359,31 @@ int pxe_start_nbp ( void ) {
return 0;
}
/**
* Notify BIOS of existence of network device
*
* @v netdev Network device
* @ret rc Return status code
*/
static int pxe_notify ( struct net_device *netdev ) {
/* Do nothing if we already have a network device */
if ( pxe_netdev )
return 0;
/* Activate (and deactivate) PXE stack to notify BIOS */
pxe_activate ( netdev );
pxe_deactivate();
return 0;
}
/** PXE BIOS notification driver */
struct net_driver pxe_driver __net_driver = {
.name = "PXE",
.probe = pxe_notify,
};
REQUIRING_SYMBOL ( pxe_api_call );
REQUIRE_OBJECT ( pxe_preboot );
REQUIRE_OBJECT ( pxe_undi );