From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Mon, 20 Oct 2014 13:42:07 +0000 (+0200)
Subject: arm64/mm: add create_pgd_mapping() to create private page tables
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~117^2~33^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ce837cee8f51fb0eacb32c85461ea2f0fafc9f8;p=pandora-kernel.git

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

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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