riscv: Make sure the kernel mapping does not overlap with IS_ERR_VALUE

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The check that is done in setup_bootmem currently only works for 32-bit
kernel since the kernel mapping has been moved outside of the linear
mapping for 64-bit kernel. So make sure that for 64-bit kernel, the kernel
mapping does not overlap with the last 4K of the addressable memory.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Fixes: 2bfc6cd81b ("riscv: Move kernel mapping outside of linear mapping")
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

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Alexandre Ghiti 2021-06-29 11:13:48 +02:00 • committed by Palmer Dabbelt

parent c99127c452

commit db6b84a368

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1 changed files with 16 additions and 2 deletions

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arch/riscv/mm/init.c

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