OpenCloudOS-Kernel/Documentation/arm64
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
..
acpi_object_usage.txt ARM64 / ACPI: additions of ACPI documentation for arm64 2015-03-26 15:13:09 +00:00
arm-acpi.txt Documentation: ACPI for ARM64 2015-03-26 15:13:09 +00:00
booting.txt arm64: add the initrd region to the linear mapping explicitly 2016-04-14 16:20:45 +01:00
legacy_instructions.txt arm64: Emulate SETEND for AArch32 tasks 2015-01-23 17:11:44 +00:00
memory.txt Documentation/arm64/memory.txt: fix typo 2014-10-20 17:55:38 +01:00
silicon-errata.txt arm64: Add workaround for Cavium erratum 27456 2016-02-26 15:14:27 +00:00
tagged-pointers.txt arm64: documentation: tighten up tagged pointer documentation 2013-09-20 09:56:06 +01:00