linux/arch/arm64/mm
Ard Biesheuvel 177e15f0c1 arm64: add the initrd region to the linear mapping explicitly
Instead of going out of our way to relocate the initrd if it turns out
to occupy memory that is not covered by the linear mapping, just add the
initrd to the linear mapping. This puts the burden on the bootloader to
pass initrd= and mem= options that are mutually consistent.

Note that, since the placement of the linear region in the PA space is
also dependent on the placement of the kernel Image, which may reside
anywhere in memory, we may still end up with a situation where the initrd
and the kernel Image are simply too far apart to be covered by the linear
region.

Since we now leave it up to the bootloader to pass the initrd in memory
that is guaranteed to be accessible by the kernel, add a mention of this to
the arm64 boot protocol specification as well.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-14 16:20:45 +01:00
..
cache.S arm64: Use PoU cache instr for I/D coherency 2015-12-17 11:07:13 +00:00
context.c arm64: make mrs_s prefixing implicit in read_cpuid 2016-03-04 14:12:46 +00:00
copypage.c arm64: Defer dcache flush in __cpu_copy_user_page 2015-12-17 11:07:13 +00:00
dma-mapping.c arm64: dma-mapping: fix handling of devices registered before arch_initcall 2016-02-17 11:48:01 +00:00
dump.c arm64: mm: dump: Use VA_START directly instead of private LOWEST_ADDR 2016-02-26 18:31:41 +00:00
extable.c arm64: switch to relative exception tables 2016-02-24 14:57:26 +00:00
fault.c Merge branch 'akpm' (patches from Andrew) 2016-03-18 19:26:54 -07:00
flush.c arm64: mm: allow preemption in copy_to_user_page 2016-03-24 16:32:54 +00:00
hugetlbpage.c mm: cleanup *pte_alloc* interfaces 2016-03-17 15:09:34 -07:00
init.c arm64: add the initrd region to the linear mapping explicitly 2016-04-14 16:20:45 +01:00
ioremap.c arm64: add ioremap physical address information 2015-01-23 15:29:06 +00:00
kasan_init.c arm64: kasan: Fix zero shadow mapping overriding kernel image shadow 2016-03-11 11:03:35 +00:00
Makefile arm64: add KASAN support 2015-10-12 17:46:36 +01:00
mm.h arm64: add better page protections to arm64 2015-01-22 14:54:29 +00:00
mmap.c mm: ASLR: use get_random_long() 2016-02-27 10:28:52 -08:00
mmu.c arm64: consistently use p?d_set_huge 2016-03-24 16:32:29 +00:00
pageattr.c arm64: Add support for ARCH_SUPPORTS_DEBUG_PAGEALLOC 2016-02-16 15:40:30 +00:00
pgd.c arm64: mm: move pgd_cache initialisation to pgtable_cache_init 2016-01-05 15:43:10 +00:00
proc-macros.S arm64: kernel: fix architected PMU registers unconditional access 2016-01-25 11:09:06 +00:00
proc.S arm64: Add workaround for Cavium erratum 27456 2016-02-26 15:14:27 +00:00