tree d7c2a6f1483cb0010fe73991d7e1de4e90429fb2
parent d1db0eea852497762cab43b905b879dfcd3b8987
author Dave Anderson <anderson@redhat.com> 1397584404 +0100
committer Catalin Marinas <catalin.marinas@arm.com> 1399152029 +0100

arm64: Fix for the arm64 kern_addr_valid() function

Fix for the arm64 kern_addr_valid() function to recognize
virtual addresses in the kernel logical memory map.  The
function fails as written because it does not check whether
the addresses in that region are mapped at the pmd level to
2MB or 512MB pages, continues the page table walk to the
pte level, and issues a garbage value to pfn_valid().

Tested on 4K-page and 64K-page kernels.

Signed-off-by: Dave Anderson <anderson@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>