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033b8ffe3f
linux/include/asm-arm
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Mike Westerhof 033b8ffe3f [ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23) 
This patch resolves a kexec boot failure that can occur because
no ATAGs are passed in to the kexec'd kernel. Currently the
newly-kexec'd kernel may fail if it requires specific ATAGs, or
it may fail because the fixed memory location at which it expects
to find the ATAGs may contain random data instead of ATAGs.

The patch ensures that any ATAGs passed to the current kernel
at boot time are copied to a static buffer, and are copied back
when kexec copies the new kernel into place. Thus the new
kernel sees the same ATAGs from kexec and the boot loader.

The boot parameters are copied without regard to type, content,
or length -- this patch's scope is limited soley to saving and
restoring a fixed-size block of memory containing the kernel's
boot parameters. Additional functionality to examine, alter, or
replace the ATAGs (using kexec, for example) can be implemented
by manipulating the static buffer containing the preserved ATAGs.

Note: the size of the buffer (1.5KB) is selected to comfortably
hold one of each ATAG type, including a maximum-length command
line and the maximum number of ATAG_MEM structures currently
supported by the kernel. Should an ATAG list exceed that limit,
the list will be silently truncated to that limit (to do other-
wise at that point in the boot process would make a simple
problem exceedingly complicated).

[Note: this is the same patch as 4579, modified to accomodate
the ATAG changes introduced in 2.6.23]

Signed-off-by: Mike Westerhof <mwester at dls.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-10-12 23:43:48 +01:00
..
arch-aaec2000 [ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user 2007-02-17 15:04:29 +00:00
arch-at91 [ARM] 4553/1: ARM at91: define FIQ_START 2007-08-23 12:34:42 +01:00
arch-cl7500 [ARM] Use new get_irqnr_preamble 2007-05-12 15:25:50 +01:00
arch-clps711x [ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user 2007-02-17 15:04:29 +00:00
arch-davinci [ARM] 4432/5: davinci: pin mux support 2007-07-12 09:57:09 +01:00
arch-ebsa110 [ARM] Use new get_irqnr_preamble 2007-05-12 15:25:50 +01:00
arch-ebsa285 [ARM] Use new get_irqnr_preamble 2007-05-12 15:25:50 +01:00
arch-ep93xx [ARM] Merge remaining IOP code 2007-02-20 10:52:43 +00:00
arch-h720x [ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user 2007-02-17 15:04:29 +00:00
arch-imx arm: i.MX/MX1 SDHC implements SD cards read-only switch read-back 2007-09-24 19:33:14 +02:00
arch-integrator [ARM] Remove Integrator/CP SMP platform support 2007-05-16 15:35:26 +01:00
arch-iop13xx [ARM] 4495/1: iop: combined watchdog timer driver for iop3xx and iop13xx 2007-07-20 09:35:42 +01:00
arch-iop32x [ARM] 4476/1: EM7210/SS4000E support 2007-07-20 09:35:35 +01:00
arch-iop33x iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver 2007-07-13 08:06:19 -07:00
arch-ixp4xx USB: pxa2xx_udc: use generic gpio layer 2007-07-12 16:34:42 -07:00
arch-ixp23xx [ARM] "extern inline" -> "static inline" 2007-10-12 23:43:17 +01:00
arch-ixp2000 [ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user 2007-02-17 15:04:29 +00:00
arch-ks8695 [ARM] 4377/1: KS8695: GPIO driver 2007-07-12 11:12:34 +01:00
arch-l7200 [ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user 2007-02-17 15:04:29 +00:00
arch-lh7a40x [ARM] 4248/1: lh7a40x: fix missing definitions for get_irqnr_preamble 2007-03-08 13:33:57 +00:00
arch-mxc [ARM] 4530/1: MXC: fix elf_hwcap compile breakage as in iop13xx 2007-07-28 20:52:55 +01:00
arch-netx [ARM] 4329/1: fix position of NETX_SYSTEM_REG 2007-05-03 20:22:49 +01:00
arch-ns9xxx [ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32 2007-10-12 23:43:41 +01:00
arch-omap ARM: OMAP: H3 workqueue fixes 2007-08-22 00:42:51 -07:00
arch-pnx4008 [ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user 2007-02-17 15:04:29 +00:00
arch-pxa backlight: Convert corgi backlight driver into a more generic driver 2007-10-11 22:24:13 +01:00
arch-realview [ARM] Use new get_irqnr_preamble 2007-05-12 15:25:50 +01:00
arch-rpc [ARM] 4564/1: Add tagged list support for Acorn RiscPC's uncompress code 2007-10-12 23:43:11 +01:00
arch-s3c2400 [ARM] 4522/1: S3C: split include/asm-arm/arch/memory.h 2007-07-22 17:06:04 +01:00
arch-s3c2410 [ARM] 4596/1: S3C2412: Correct IRQs for SDI+CF and add decoding support 2007-10-12 23:43:42 +01:00
arch-sa1100 [ARM] unbalanced parenthesis fix 2007-10-12 23:43:21 +01:00
arch-shark [ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user 2007-02-17 15:04:29 +00:00
arch-versatile [ARM] Use new get_irqnr_preamble 2007-05-12 15:25:50 +01:00
hardware [ARM] 4495/1: iop: combined watchdog timer driver for iop3xx and iop13xx 2007-07-20 09:35:42 +01:00
mach [ARM] use __used attribute 2007-05-30 13:15:06 +01:00
plat-s3c [ARM] 4551/1: s3c24xx: fix wrong virtual address offsets 2007-08-23 12:36:40 +01:00
plat-s3c24xx [ARM] 4524/1: S3C: Move register out of include/asm-arm/arch-s3c2410 2007-07-22 17:06:30 +01:00
.gitignore [ARM] 4216/1: add .gitignore entries for ARM specific files 2007-02-17 11:26:41 +00:00
a.out.h arch: personality independent stack top 2007-07-19 10:04:45 -07:00
assembler.h [ARM] Remove MODE_(SVC|IRQ|FIQ|USR) and DEFAULT_FIQ 2006-06-25 12:01:48 +01:00
atomic.h atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency 2007-05-08 11:15:20 -07:00
auxvec.h
bitops.h [ARM] 3852/1: convert atomic bitops and __xchg over to raw_local_irq_{save,restore} 2006-09-25 10:34:03 +01:00
bug.h [ARM] 3983/2: remove unused argument to __bug() 2006-12-07 22:38:09 +00:00
bugs.h [ARM] nommu: adjust headers for !MMU ARM systems 2006-06-28 17:59:45 +01:00
byteorder.h [ARM] Fix byte order macros for Thumb 2006-06-19 15:35:36 +01:00
cache.h
cacheflush.h [ARM] 4554/1: replace consistent_sync() with flush_ioremap_region() 2007-08-23 12:31:31 +01:00
checksum.h [ARM] Improve csum_fold, cleanup csum_tcpudp_magic() 2007-02-06 16:46:46 +00:00
cnt32_to_63.h [ARM] 3978/1: macro to provide a 63-bit value from a 32-bit hardware counter 2006-12-07 16:06:45 +00:00
cpu-multi32.h [ARM] Unuse another Linux PTE bit 2006-12-13 14:34:43 +00:00
cpu-single.h [ARM] Unuse another Linux PTE bit 2006-12-13 14:34:43 +00:00
cpu.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
cputime.h
current.h
delay.h [ARM] 3346/1: Fix udelay() for HZ values different from 100 2006-03-21 22:06:07 +00:00
device.h [ARM] Add a reference from struct device to the dma bounce info 2007-02-12 10:28:24 +00:00
div64.h [NET]: div64_64 consolidate (rev3) 2007-04-25 22:23:33 -07:00
dma-mapping.h [ARM] Rename consistent_sync() as dma_cache_maint() 2007-10-12 23:43:45 +01:00
dma.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
domain.h [ARM] 4127/1: Flush the prefetch buffer after changing the DACR 2007-02-08 14:49:18 +00:00
dyntick.h [ARM] 3692/1: ARM: coswitch irq handling to the generic implementation 2006-07-01 22:30:09 +01:00
ecard.h [ARM] ecard: add ecardm_iomap() / ecardm_iounmap() 2007-05-11 17:19:02 +01:00
elf.h [ARM] 4496/1: elf_hwcap: fix up #include misplacement 2007-07-20 21:29:18 +01:00
emergency-restart.h
errno.h
fb.h fbdev: detect primary display device 2007-07-17 10:23:11 -07:00
fcntl.h
fiq.h
flat.h [ARM] 4074/1: Flat loader stack alignment 2006-12-30 17:05:08 +00:00
floppy.h [ARM] avoid floppy warnings by using fd_dma_setup() 2007-07-20 09:39:57 +01:00
fpstate.h [ARM] 4111/1: Allow VFP to work with thread migration on SMP 2007-01-25 16:35:29 +00:00
futex.h
glue.h [ARM] armv7: add support for ARMv7 cores. 2007-05-08 22:55:53 +01:00
gpio.h [PATCH] GPIO core 2007-02-12 09:48:34 -08:00
hardirq.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
hardware.h
hw_irq.h [PATCH] misc arm pt_regs fixes 2006-10-08 12:32:36 -07:00
hwcap.h [ARM] 4473/2: Take the HWCAP definitions out of the elf.h file 2007-07-12 16:20:15 +01:00
ide.h
io.h [ARM] 4388/1: no need for arm/mm mmap range checks for non-mmu 2007-05-20 19:36:14 +01:00
ioctl.h
ioctls.h [ARM] enable arbitary speed tty ioctls and split input/output speed 2007-05-28 23:07:34 +01:00
ipc.h
ipcbuf.h
irq_regs.h Initial blind fixup for arm for irq changes 2006-10-06 10:59:54 -07:00
irq.h [ARM] 4073/1: Prevent s3c24xx drivers from including asm/arch/hardware.h and asm/arch/irqs.h 2006-12-30 17:05:07 +00:00
irqflags.h [ARM] Add ARM irqtrace support 2006-09-20 14:58:35 +01:00
Kbuild [ARM] 4473/2: Take the HWCAP definitions out of the elf.h file 2007-07-12 16:20:15 +01:00
kdebug.h move die notifier handling to common code 2007-05-08 11:15:04 -07:00
kexec.h [ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23) 2007-10-12 23:43:48 +01:00
kmap_types.h
leds.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
limits.h
linkage.h [ARM] VFP: fix section mismatch error 2007-06-10 12:22:20 +01:00
local.h
locks.h
mc146818rtc.h
memory.h [ARM] Clean up discontigmem support 2006-11-30 22:52:28 +00:00
mman.h [PATCH] add asm-generic/mman.h 2006-02-15 15:32:22 -08:00
mmu_context.h [ARM] ARMv6: add CPU_HAS_ASID configuration 2007-05-17 10:19:23 +01:00
mmu.h [ARM] ARMv6: add CPU_HAS_ASID configuration 2007-05-17 10:19:23 +01:00
mmzone.h
module.h
msgbuf.h
mtd-xip.h
mutex.h
namei.h
nwflash.h
page-nommu.h [ARM] nommu: adjust headers for !MMU ARM systems 2006-06-28 17:59:45 +01:00
page.h Merge master.kernel.org:/pub/scm/linux/kernel/git/tmlind/linux-omap-upstream into devel 2006-09-27 19:57:54 +01:00
param.h [ARM] Move HZ definition into Kconfig 2006-03-21 22:05:45 +00:00
parport.h
pci.h PCI: remove pci_dac_dma_... APIs 2007-07-11 16:02:11 -07:00
percpu.h
pgalloc.h [ARM] nommu: adjust headers for !MMU ARM systems 2006-06-28 17:59:45 +01:00
pgtable-hwdef.h [ARM] Set bit 4 on section mappings correctly depending on CPU 2006-06-29 18:24:21 +01:00
pgtable-nommu.h [ARM] 4531/1: remove is_in_rom() protptype 2007-08-04 22:13:43 +01:00
pgtable.h mm: remove ptep_establish() 2007-07-17 10:22:59 -07:00
poll.h Consolidate asm/poll.h 2007-05-11 08:29:34 -07:00
posix_types.h
proc-fns.h [ARM] armv7: add support for ARMv7 cores. 2007-05-08 22:55:53 +01:00
processor.h [ARM] 4016/1: prefetch macro is wrong wrt gcc's "delete-null-pointer-checks" 2006-12-13 18:30:20 +00:00
procinfo.h [ARM] Move HWCAP_* definitions to asm/elf.h 2006-11-30 12:24:46 +00:00
ptrace.h [ARM] 4474/1: Do not check the PSR_F_BIT in valid_user_regs 2007-07-12 16:20:52 +01:00
resource.h
rtc.h [PATCH] RTC subsystem: ARM cleanup 2006-03-27 08:44:50 -08:00
scatterlist.h
sections.h
segment.h
semaphore-helper.h
semaphore.h
sembuf.h
serial.h
setup.h [ARM] use __used attribute 2007-05-30 13:15:06 +01:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h [PATCH] ARM: fixup irqflags breakage after ARM genirq merge 2006-07-02 17:29:22 -07:00
sizes.h [ARM] 4372/1: Define byte sizes in asm-arm/sizes.h 2007-05-11 21:07:58 +01:00
smp.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
socket.h [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
sockios.h [NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution 2007-04-25 22:24:04 -07:00
spinlock_types.h
spinlock.h [PATCH] Remove the last reference to rwlock_is_locked() macro. 2007-02-11 10:51:34 -08:00
stat.h
statfs.h
string.h
suspend.h
system.h [PATCH] sched: sched_cacheflush is now unused 2007-07-19 21:28:35 +02:00
termbits.h [ARM] enable arbitary speed tty ioctls and split input/output speed 2007-05-28 23:07:34 +01:00
termios.h [ARM] enable arbitary speed tty ioctls and split input/output speed 2007-05-28 23:07:34 +01:00
therm.h
thread_info.h remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
thread_notify.h [ARM] Add thread_notify infrastructure 2006-06-22 10:24:18 +01:00
timex.h
tlb.h [ARM] noMMU: removes TLB codes in nommu mode 2006-03-21 22:03:20 +00:00
tlbflush.h [ARM] 4394/1: ARMv7: Add the TLB range operations 2007-05-30 14:32:07 +01:00
topology.h
traps.h
types.h
uaccess.h Storage class should be before const qualifier 2007-02-17 20:11:19 +01:00
ucontext.h [ARM] 3664/1: crunch: add signal frame save/restore 2006-06-28 17:54:59 +01:00
unaligned.h arm unaligned.h annotations 2007-07-26 11:11:57 -07:00
unistd.h [ARM] Add fallocate syscall entry 2007-10-12 23:43:31 +01:00
user.h
vfp.h [ARM] vfp: make fpexc bit names less verbose 2007-07-20 09:39:57 +01:00
vfpmacros.h [ARM] 3472/1: Use the D variants of FLDMIA/FSTMIA on ARMv6 2006-04-10 21:32:42 +01:00
vga.h [PATCH] vgacon: make VGA_MAP_MEM take size, remove extra use 2006-06-22 15:05:58 -07:00
xor.h