kexec/ppc: Fix kernel program entry point while changing the load addr

uImage probe fills the entry point (ep) based on the load_addr
from the uImage headers. If we change the load_addr, we should
accordingly update the entry point.

For ELF, calculate the offset of e_entry from the virtual start
address and add it to the physical start address to find the
physical address of kernel entry.

i.e,
  pa (e_entry) = pa(phdr[0].p_vaddr) + (e_entry - phdr[0].p_vaddr)
               = kernel_addr + (e_entry - phdr[0].p_vaddr)

Signed-off-by: Suzuki K. Poulose <suzuki@in.ibm.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Matthew McClintock <msm@freescale.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

0 files changed, 0 insertions, 0 deletions