arm64: Calculate size for idmap_pg_dir at compile time
Now that we can calculate the number of levels required for mapping a va width, reserve exact number of pages that would be required to cover the idmap. The idmap should be able to handle the maximum physical address size supported. Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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