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| author | Jason Yan <yanaijie@huawei.com> | 2019-09-20 11:45:38 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-11-13 09:27:34 +0100 |
| commit | aa1d2090e69311c65f69c0fa2311d1d0f01c55f8 (patch) | |
| tree | a6e30a7a715b2f926e7f8f052e59e5054168bb14 /arch/powerpc/mm/mmu_decl.h | |
| parent | powerpc: introduce kernstart_virt_addr to store the kernel base (diff) | |
| download | linux-aa1d2090e69311c65f69c0fa2311d1d0f01c55f8.tar.xz linux-aa1d2090e69311c65f69c0fa2311d1d0f01c55f8.zip | |
powerpc/fsl_booke/32: introduce create_kaslr_tlb_entry() helper
Add a new helper create_kaslr_tlb_entry() to create a tlb entry by the
virtual and physical address. This is a preparation to support boot kernel
at a randomized address.
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/mmu_decl.h')
| -rw-r--r-- | arch/powerpc/mm/mmu_decl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h index c750ac9ec713..9da261ad54c3 100644 --- a/arch/powerpc/mm/mmu_decl.h +++ b/arch/powerpc/mm/mmu_decl.h @@ -139,6 +139,7 @@ extern unsigned long calc_cam_sz(unsigned long ram, unsigned long virt, 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); #endif extern void loadcam_entry(unsigned int index); extern void loadcam_multi(int first_idx, int num, int tmp_idx); |