tree 66b2d1ac7d059ad95a7557d4207ce237a6a701b5
parent e094d44568680d4e5e2722c4ad090ff0810719b9
author Ard Biesheuvel <ard.biesheuvel@linaro.org> 1437737907 +0100
committer Will Deacon <will.deacon@arm.com> 1437991721 +0100

arm64: efi: prefer AllocatePages() over efi_low_alloc() for vmlinux

When allocating memory for the kernel image, try the AllocatePages()
boot service to obtain memory at the preferred offset of
'dram_base + TEXT_OFFSET', and only revert to efi_low_alloc() if that
fails. This is the only way to allocate at the base of DRAM if DRAM
starts at 0x0, since efi_low_alloc() refuses to allocate at 0x0.

Tested-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>