arm64/mm: add create_pgd_mapping() to create private page tables

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For UEFI, we need to install the memory mappings used for Runtime Services
in a dedicated set of page tables. Add create_pgd_mapping(), which allows
us to allocate and install those page table entries early.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

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Ard Biesheuvel 2014-10-20 15:42:07 +02:00

parent e1e1fddae7

commit 8ce837cee8

3 changed files with 30 additions and 21 deletions

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3

arch/arm64/include/asm/mmu.h

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5

arch/arm64/include/asm/pgtable.h

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43

arch/arm64/mm/mmu.c

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