Hi Linus,
This is a patchset which didn't make the last merge window. It adds a
debugging capability to feed ACPI tables via the initramfs.
On a grander scope, it formalizes using the initramfs protocol for
feeding arbitrary blobs which need to be accessed early to the kernel:
they are fed first in the initramfs blob (lots of bootloaders can
concatenate this at boot time, others can use a single file) in an
uncompressed cpio archive using filenames starting with "kernel/".
The ACPI maintainers requested that this patchset be fed via the x86
tree rather than the ACPI tree as the footprint in the general x86
code is much bigger than in the ACPI code proper.
-hpa
The following changes since commit 979570e02981d4a8fc20b3cc8fd651856c98ee9d:
Linux 3.6-rc7 (2012-09-23 18:10:57 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-acpi-for-linus
David Rientjes (1):
ACPI: Fix build when disabled
H. Peter Anvin (1):
lib: Add early cpio decoder
Thomas Renninger (5):
x86, acpi: Introduce x86 arch specific arch_reserve_mem_area() for e820
handling
ACPI: Store valid ACPI tables passed via early initrd in reserved
memblock areas
ACPI: Implement physical address table override
ACPI: Create acpi_table_taint() function to avoid code duplication
ACPI: Document ACPI table overriding via initrd
Tony Luck (1):
X86 ACPI: Use #ifdef not #if for CONFIG_X86 check
Documentation/acpi/initrd_table_override.txt | 94 ++++++++++++
arch/x86/kernel/acpi/boot.c | 6 +
arch/x86/kernel/setup.c | 4 +
drivers/acpi/Kconfig | 9 +
drivers/acpi/osl.c | 202 ++++++++++++++++++++++++--
include/linux/acpi.h | 16 ++
include/linux/earlycpio.h | 17 ++
lib/Makefile | 2 +-
lib/earlycpio.c | 145 ++++++++++++++++++
9 files changed, 483 insertions(+), 12 deletions(-)
create mode 100644 Documentation/acpi/initrd_table_override.txt
create mode 100644 include/linux/earlycpio.h
create mode 100644 lib/earlycpio.c
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