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Lasse Collin 303148045a x86: support XZ-compressed kernel 
This integrates the XZ decompression code to the x86 pre-boot code.

mkpiggy.c is updated to reserve about 32 KiB more buffer safety margin for
kernel decompression.  It is done unconditionally for all decompressors to
keep the code simpler.

The XZ decompressor needs around 30 KiB of heap, so the heap size is
increased to 32 KiB on both x86-32 and x86-64.

Documentation/x86/boot.txt is updated to list the XZ magic number.

With the x86 BCJ filter in XZ, XZ-compressed x86 kernel tends to be a few
percent smaller than the equivalent LZMA-compressed kernel.

Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alain Knaff <alain@knaff.lu>
Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Cc: Phillip Lougher <phillip@lougher.demon.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-13 08:03:25 -08:00
..
ABI leds: add output inversion option to backlight trigger 2011-01-13 08:03:06 -08:00
accounting taskstats: pad taskstats netlink response for aligment issues on ia64 2010-12-22 19:43:34 -08:00
acpi ACPI: introduce module parameter acpi.aml_debug_output 2010-08-14 23:02:14 -04:00
aoe Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
arm Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2011-01-06 19:13:58 -08:00
auxdisplay
blackfin Blackfin: document SPI CS limitations with CPHA=0 2010-08-06 12:55:52 -04:00
block Documentation: remove anticipatory scheduler info 2010-11-11 12:09:59 +01:00
blockdev Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
cdrom Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
cgroups cgroups: remove deprecated subsystem from examples. 2011-01-13 08:03:16 -08:00
connector Documentation/: it's -> its where appropriate 2010-04-23 02:09:52 +02:00
console
cpu-freq
cpuidle
cris
crypto
development-process Documentation/development-process: more staging info 2010-11-18 15:00:47 -08:00
device-mapper Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
DocBook Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2011-01-07 14:45:47 -08:00
driver-model driver core: prune docs about device_interface 2010-11-10 16:57:11 -08:00
dvb [media] Documentation/lmedm04: Fix firmware extract information 2010-12-29 08:16:30 -02:00
early-userspace
fault-injection
fb Merge branch 'fbdev/udlfb' 2011-01-06 18:10:09 +09:00
filesystems NTFS: writev() fix and maintenance/contact details update 2011-01-12 08:35:53 -08:00
firmware_class firmware: Update hotplug script 2010-08-05 13:53:34 -07:00
frv
hwmon hwmon: Support for Dallas Semiconductor DS620 2011-01-09 09:10:10 -08:00
i2c i2c: Add generic I2C multiplexer using GPIO API 2011-01-10 22:11:23 +01:00
i2o
ia64 Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
ide
infiniband Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
input Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rydberg/input-mt into next 2010-12-27 17:33:20 -08:00
ioctl pps: add kernel consumer support 2011-01-13 08:03:21 -08:00
isdn Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-08-04 15:31:02 -07:00
ja_JP Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
kbuild Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2011-01-10 08:57:03 -08:00
kdump
ko_KR Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
kvm KVM: Document that KVM_GET_SUPPORTED_CPUID may return emulated values 2010-10-24 10:52:48 +02:00
laptops thinkpad-acpi: untangle ACPI/vendor backlight selection 2010-08-16 11:54:50 -04:00
leds Documentation: led drivers lp5521 and lp5523 2010-11-12 07:55:32 -08:00
lguest Merge branch 'v2.6.36-rc8' into for-2.6.37/barrier 2010-10-19 09:13:04 +02:00
m68k
make kbuild: introduce HDR_ARCH_LIST for headers_install_all 2010-12-14 22:16:19 +01:00
mips
misc-devices Documentation: short descriptions for bh1770glc and apds990x drivers 2010-10-26 16:52:14 -07:00
mmc mmc: add erase, secure erase, trim and secure trim operations 2010-08-12 08:43:30 -07:00
mn10300
mtd Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
namespaces
netlabel Documentation/: it's -> its where appropriate 2010-04-23 02:09:52 +02:00
networking dccp: make upper bound for seq_window consistent on 32/64 bit 2011-01-07 12:22:44 +01:00
nfc NFC: Driver for NXP Semiconductors PN544 NFC chip. 2011-01-13 08:03:19 -08:00
parisc
PCI Documentation: pci.txt: fix typo 2010-07-11 22:17:45 +02:00
pcmcia pcmcia: use autoconfiguration feature for ioports and iomem 2010-09-29 17:20:24 +02:00
power PM: Fix references to basic-pm-debugging.txt in drivers-testing.txt 2010-12-24 15:02:41 +01:00
powerpc Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-01-11 16:31:41 -08:00
pps pps: add parallel port PPS signal generator 2011-01-13 08:03:21 -08:00
prctl
RCU rcu: update documentation/comments for Lai's adoption patch 2010-11-29 22:01:59 -08:00
s390 Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
scheduler sched: Remove USER_SCHED from documentation 2010-04-02 20:12:01 +02:00
scsi [SCSI] megaraid_sas: Documentation update 2010-12-22 23:26:53 -06:00
serial pps: timestamp is always passed to dcd_change() 2011-01-13 08:03:20 -08:00
sh sh: clkfwk: Kill off unused clk_set_rate_ex(). 2010-11-15 18:25:12 +09:00
sound Merge branch 'topic/hda' into for-linus 2010-10-25 10:40:05 +02:00
sparc
spi arm/pxa2xx: reorgazine SSP and SPI header files 2010-12-01 12:18:33 +01:00
sysctl sysctl: remove obsolete comments 2011-01-13 08:03:18 -08:00
telephony Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
thermal
timers Documentation/timers/hpet_example.c: add supporting info for hpet_example 2010-10-26 16:52:11 -07:00
trace tools, perf: Documentation for the power events API 2011-01-05 21:25:29 +01:00
uml Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
usb USB: use the runtime-PM autosuspend implementation 2010-11-16 14:03:41 -08:00
video4linux [media] cardlist: Update lists for em28xx and saa7134 2010-12-29 08:17:17 -02:00
vm slub: Fix build breakage in Documentation/vm 2010-11-06 09:04:33 +02:00
w1 w1: DS2423 counter driver and documentation 2011-01-13 08:03:22 -08:00
watchdog watchdog: docs: add an entry for imx2_wdt 2010-07-01 16:02:55 +00:00
wimax
x86 x86: support XZ-compressed kernel 2011-01-13 08:03:25 -08:00
zh_CN Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
.gitignore add random binaries to .gitignore 2010-04-08 11:34:34 +02:00
00-INDEX mmc: add erase, secure erase, trim and secure trim operations 2010-08-12 08:43:30 -07:00
apparmor.txt AppArmor: update Maintainer and Documentation 2010-08-02 15:35:15 +10:00
applying-patches.txt
atomic_ops.txt Documentation/: it's -> its where appropriate 2010-04-23 02:09:52 +02:00
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt documentation: fix almost duplicate filenames (IO/io-mapping.txt) 2010-07-20 17:49:30 +00:00
cachetlb.txt Documentation/: it's -> its where appropriate 2010-04-23 02:09:52 +02:00
Changes Documentation update broken web addresses 2010-07-11 21:55:42 +02:00
circular-buffers.txt
coccinelle.txt scripts/coccinelle: update for compatability with Coccinelle 0.2.4 2010-12-03 12:27:01 +01:00
CodingStyle
cpu-hotplug.txt documentation: fix erroneous email address. 2010-08-11 23:04:10 +09:30
cpu-load.txt
cputopology.txt topology/sysfs: Provide book id and siblings attributes 2010-09-09 20:41:25 +02:00
credentials.txt CRED: Fix __task_cred()'s lockdep check and banner comment 2010-07-29 15:16:18 -07:00
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 2010-10-28 09:35:11 -07:00
DMA-API-HOWTO.txt Documentation: DMA-API-HOWTO.txt: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN 2010-08-14 11:56:46 -07:00
DMA-API.txt dma-mapping: remove dma_is_consistent API 2010-08-11 08:59:21 -07:00
DMA-attributes.txt
DMA-ISA-LPC.txt
dmaengine.txt
dontdiff Documentation/dontdiff: add further autogenerated files to ignore list 2011-01-06 09:59:37 -08:00
dynamic-debug-howto.txt Dynamic Debug: Introduce ddebug_query= boot parameter 2010-10-22 10:16:42 -07:00
edac.txt EDAC: Fix typos in Documentation/edac.txt 2010-11-25 17:32:47 +01:00
eisa.txt
email-clients.txt Documentation/email-clients.txt: update Thunderbird docs with wordwrap plugin 2011-01-13 08:03:15 -08:00
feature-removal-schedule.txt cs5535: deprecate older cs5535_gpio driver 2011-01-13 08:03:13 -08:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gpio.txt gpiolib: annotate gpio-intialization with __must_check 2011-01-13 08:03:14 -08:00
highuid.txt
HOWTO Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
hw_random.txt
init.txt
initrd.txt
intel_txt.txt Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt docbook: warn on unused doc entries 2010-09-11 16:49:21 -07:00
kernel-docs.txt Documentation: update kernel-docs.txt 2011-01-06 09:59:38 -08:00
kernel-parameters.txt Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-01-11 16:31:41 -08:00
keys-request-key.txt
keys-trusted-encrypted.txt keys: add new trusted key-type 2010-11-29 08:55:25 +11:00
keys.txt
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt kprobes: Update document about irq disabled state in kprobe handler 2010-10-14 08:55:27 +02:00
kref.txt
ldm.txt Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
leds-class.txt led-class: always implement blinking 2010-11-12 07:55:32 -08:00
leds-lp3944.txt
local_ops.txt
lockdep-design.txt
lockstat.txt
logo.gif
logo.txt
magic-number.txt
Makefile [media] Remove the old V4L1 v4lgrab.c file 2010-12-29 08:17:12 -02:00
ManagementStyle
mca.txt
md.txt Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
memory-barriers.txt
memory-hotplug.txt
memory.txt
mono.txt
mutex-design.txt mutex: Fix annotations to include it in kernel-locking docbook 2010-09-03 08:19:51 +02:00
nmi_watchdog.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt panic: Add taint flag TAINT_FIRMWARE_WORKAROUND ('I') 2010-05-19 08:37:43 +01:00
padata.txt Documentation/padata.txt: fix typos etc. 2010-08-11 08:59:18 -07:00
parport-lowlevel.txt
parport.txt
pi-futex.txt
pnp.txt
preempt-locking.txt
printk-formats.txt
prio_tree.txt
rbtree.txt Documentation: remove anticipatory scheduler info 2010-11-11 12:09:59 +01:00
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt variable name fix to Documentation/rt-mutex-design.txt 2010-06-05 17:39:09 +02:00
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
SELinux.txt
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
Smack.txt Documentation/: it's -> its where appropriate 2010-04-23 02:09:52 +02:00
sparse.txt update email address 2010-07-19 10:56:54 +02:00
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt Documentation: -stable rules: upstream commit ID requirement reworded 2010-04-22 15:24:56 -07:00
SubmitChecklist Documentation: update SubmitChecklist for O=objdir and kconfig testing 2010-05-24 07:31:20 -07:00
SubmittingDrivers Documentation: update broken web addresses. 2010-08-04 15:21:40 +02:00
SubmittingPatches SubmittingPatches: add more about patch descriptions 2010-08-09 20:45:05 -07:00
svga.txt
sysfs-rules.txt
sysrq.txt documentation: update sysrq.txt magic sysrq keys 2010-10-26 17:32:41 -07:00
tomoyo.txt TOMOYO: Update version to 2.3.0 2010-08-02 15:35:10 +10:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
volatile-considered-harmful.txt
workqueue.txt workqueue: add and use WQ_MEM_RECLAIM flag 2010-10-11 15:20:26 +02:00
xz.txt decompressors: add XZ decompressor module 2011-01-13 08:03:24 -08:00
zorro.txt