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authorJason Yan <yanaijie@huawei.com>2019-09-20 17:45:39 +0800
committerMichael Ellerman <mpe@ellerman.id.au>2019-11-13 19:27:37 +1100
commitc061b38a3e48663c29611e3b60afffe624d7c830 (patch)
tree3ee9833247d61bebf813955f9d8aaa0a732d730f /arch/powerpc/mm
parentpowerpc/fsl_booke/32: introduce create_kaslr_tlb_entry() helper (diff)
downloadlinux-dev-c061b38a3e48663c29611e3b60afffe624d7c830.tar.xz
linux-dev-c061b38a3e48663c29611e3b60afffe624d7c830.zip
powerpc/fsl_booke/32: introduce reloc_kernel_entry() helper
Add a new helper reloc_kernel_entry() to jump back to the start of the new kernel. After we put the new kernel in a randomized place we can use this new helper to enter the kernel and begin to relocate again. Signed-off-by: Jason Yan <yanaijie@huawei.com> Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Diana Craciun <diana.craciun@nxp.com> Tested-by: Diana Craciun <diana.craciun@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm')
-rw-r--r--arch/powerpc/mm/mmu_decl.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index 9da261ad54c3..bbfd185fb99a 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -140,6 +140,7 @@ extern void adjust_total_lowmem(void);
extern int switch_to_as1(void);
extern void restore_to_as0(int esel, int offset, void *dt_ptr, int bootcpu);
void create_kaslr_tlb_entry(int entry, unsigned long virt, phys_addr_t phys);
+void reloc_kernel_entry(void *fdt, int addr);
#endif
extern void loadcam_entry(unsigned int index);
extern void loadcam_multi(int first_idx, int num, int tmp_idx);