mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-02 23:46:41 +07:00
ce3fe6b2bf
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
16 lines
343 B
C
16 lines
343 B
C
#ifndef _MACH_BIOS_EBDA_H
|
|
#define _MACH_BIOS_EBDA_H
|
|
|
|
/*
|
|
* there is a real-mode segmented pointer pointing to the
|
|
* 4K EBDA area at 0x40E.
|
|
*/
|
|
static inline unsigned int get_bios_ebda(void)
|
|
{
|
|
unsigned int address = *(unsigned short *)phys_to_virt(0x40E);
|
|
address <<= 4;
|
|
return address; /* 0 means none */
|
|
}
|
|
|
|
#endif /* _MACH_BIOS_EBDA_H */
|