#ifndef _PPC64_KDUMP_H
#define _PPC64_KDUMP_H
/* How many bytes to reserve at zero for kdump. The reserve limit should
* be greater or equal to the trampoline's end address. */
#define KDUMP_RESERVE_LIMIT 0x8000
#define KDUMP_TRAMPOLINE_START 0x0100
#define KDUMP_TRAMPOLINE_END 0x3000
extern void kdump_setup(void);
#endif /* __PPC64_KDUMP_H */-
Michael Ellerman authored
Regardless of where the kernel's linked we always get interrupts at low addresses. This patch creates a trampoline in the first 3 pages of memory, where interrupts land, and patches those addresses to jump into the real kernel code at PHYSICAL_START. We also need to reserve the trampoline code and a bit more in prom.c Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
Paul Mackerras <paulus@samba.org>
0cc4746c