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91a0030295
linux/arch/powerpc/boot
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Paul Mackerras 91a0030295 powerpc: Sync RPA note in zImage with kernel's RPA note 
Commit 9b09c6d909 ("powerpc: Change the
default link address for pSeries zImage kernels") changed the
real-base value in the CHRP note added by the addnote program from
12MB to 32MB to give more space for Open Firmware to load the zImage.
(The real-base value says where we want OF to position itself in
memory.)  However, this change was ineffective on most pSeries
machines, because the RPA note added by addnote has the "ignore me"
flag set to 1.  This was intended to tell OF to ignore just the RPA
note, but has the side effect of also making OF ignore the CHRP note
(at least on most pSeries machines).

To solve this we have to set the "ignore me" flag to 0 in the RPA
note.  (We can't just omit the RPA note because that is equivalent to
having an RPA note with default values, and the default values are not
what we want.)  However, then we have to make sure the values in the
zImage's RPA note match up with the values that the kernel supplies
later in prom_init.c with either the ibm,client-architecture-support
call or the process-elf-header call in prom_send_capabilities().

So this sets the "ignore me" flag in the RPA note in addnote to 0, and
adjusts the RPA note values in addnote.c and in prom_init.c to be
consistent with each other and with the values in ibm_architecture_vec.

However, since the wrapper is independent of the kernel, this doesn't
ensure that the notes will stay consistent.  To ensure that, this adds
code to addnote.c so that it can extract the kernel's RPA note from
the kernel binary and put that in the zImage.  To that end, we put the
kernel's fake ELF header (which contains the kernel's RPA note) into
its own section, and arrange for wrapper to pull out that section with
objcopy and pass it to addnote, which then extracts the RPA note from
it and transfers it to the zImage.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-10 15:55:19 +11:00
..
dtc-src powerpc: Update in-kernel dtc and libfdt to version 1.2.0 2008-08-20 16:34:58 +10:00
dts Merge commit 'jwb/jwb-next' 2008-10-07 11:15:07 +11:00
libfdt powerpc: Update in-kernel dtc and libfdt to version 1.2.0 2008-08-20 16:34:58 +10:00
.gitignore [POWERPC] Update arch/powerpc/boot/.gitignore 2008-05-20 00:35:29 -05:00
4xx.c [POWERPC] 4xx: Workaround for CHIP_11 Errata 2008-05-19 09:36:40 -05:00
4xx.h [POWERPC] 4xx: Add 405GPr and 405EP support in boot wrapper 2008-01-08 07:58:09 -06:00
44x.h [POWERPC] cuimage for Bamboo board 2007-09-19 21:13:16 -05:00
addnote.c powerpc: Sync RPA note in zImage with kernel's RPA note 2008-10-10 15:55:19 +11:00
addRamDisk.c powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
bamboo.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
cpm-serial.c [POWERPC] cpm-serial: Relocate CPM buffer descriptors and SMC parameter ram. 2008-04-17 01:01:37 -05:00
crt0.S [POWERPC] Fix building of COFF zImages 2007-06-07 22:21:31 +10:00
crtsavres.S [POWERPC] Fix bootwrapper builds with newer gcc versions 2008-06-16 15:00:52 +10:00
cuboot-8xx.c [POWERPC] Use embedded libfdt in the bootwrapper 2007-12-11 13:46:14 +11:00
cuboot-52xx.c [POWERPC] Use embedded libfdt in the bootwrapper 2007-12-11 13:46:14 +11:00
cuboot-83xx.c [POWERPC] bootwrapper: convert cuboot-8{3,5}xx to dt_fixup_mac_address_by_alias 2008-01-23 19:32:47 -06:00
cuboot-85xx-cpm2.c [POWERPC] Add a cuboot wrapper for 85xx with CPM2 2008-01-27 14:10:36 -06:00
cuboot-85xx.c [POWERPC] bootwrapper: convert cuboot-8{3,5}xx to dt_fixup_mac_address_by_alias 2008-01-23 19:32:47 -06:00
cuboot-824x.c [POWERPC] Add initial iomega StorCenter board port. 2008-01-23 19:54:36 -06:00
cuboot-bamboo.c [POWERPC] 4xx: Use correct board info structure in cuboot wrappers 2008-02-28 08:16:27 -06:00
cuboot-c2k.c powerpc: Boot code for the C2K 2008-06-09 13:42:25 +10:00
cuboot-ebony.c [POWERPC] 4xx: Use correct board info structure in cuboot wrappers 2008-02-28 08:16:27 -06:00
cuboot-katmai.c [POWERPC] 4xx: Use correct board info structure in cuboot wrappers 2008-02-28 08:16:27 -06:00
cuboot-mpc7448hpc2.c [POWERPC] bootwrapper: Build multiple cuImages 2008-02-07 11:40:19 +11:00
cuboot-pq2.c [POWERPC] cuboot-pq2: PCI fixes 2008-04-17 01:01:40 -05:00
cuboot-rainier.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
cuboot-sam440ep.c powerpc/4xx: Sam440ep support 2008-06-11 08:32:49 -04:00
cuboot-sequoia.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
cuboot-taishan.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
cuboot-warp.c [POWERPC] PIKA Warp: Update platform code to support Rev B boards 2008-05-29 07:06:56 -05:00
cuboot-yosemite.c [POWERPC] 4xx: Add bootwrapper for AMCC Yosemite board 2008-03-26 07:19:17 -05:00
cuboot.c [POWERPC] bootwrapper: Move linker symbols into ops.h 2007-08-22 15:27:28 +10:00
cuboot.h [POWERPC] Consolidate cuboot initialization code 2007-06-14 22:30:16 +10:00
dcr.h [POWERPC] 4xx: Add 405GPr and 405EP support in boot wrapper 2008-01-08 07:58:09 -06:00
devtree.c [POWERPC] Add bootwrapper function to get virtual reg from the device tree. 2008-04-17 01:01:37 -05:00
div64.S powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
dummy.c powerpc/32: Generate miboot images with ARCH=powerpc 2006-01-15 13:00:08 +11:00
ebony.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
elf_util.c powerpc: Make the 64-bit kernel as a position-independent executable 2008-09-15 11:08:38 -07:00
elf.h [POWERPC] Move bootwrapper ELF parsing routines to a file 2007-04-13 03:55:16 +10:00
ep88xc.c [POWERPC] Use embedded libfdt in the bootwrapper 2007-12-11 13:46:14 +11:00
ep405.c [POWERPC] 4xx: EP405 boards support for arch/powerpc 2007-12-23 13:13:14 -06:00
ep8248e.c [POWERPC] 82xx: Embedded Planet EP8248E support 2008-01-23 19:34:43 -06:00
fixed-head.S [POWERPC] 8xx/wrapper: Embedded Planet EP88xC support 2007-10-04 11:02:40 -05:00
flatdevtree_env.h Fix file references in documentation and Kconfig 2008-01-22 10:43:36 -08:00
fsl-soc.c [POWERPC] bootwrapper: Add fsl_get_immr() and 8xx/pq2 clock functions. 2007-10-03 20:36:35 -05:00
fsl-soc.h [POWERPC] bootwrapper: Add fsl_get_immr() and 8xx/pq2 clock functions. 2007-10-03 20:36:35 -05:00
gunzip_util.c [POWERPC] boot: Simplify gunzip_finish 2007-10-03 11:48:43 +10:00
gunzip_util.h [POWERPC] Add documentation for the zImage's gunzip convenience functions 2007-03-16 16:38:19 +11:00
hack-coff.c powerpc: Make COFF zImages for old 32-bit powermacs 2006-01-14 15:04:06 +11:00
holly.c [POWERPC] Use embedded libfdt in the bootwrapper 2007-12-11 13:46:14 +11:00
install.sh [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
io.h powerpc: Move include files to arch/powerpc/include/asm 2008-08-04 12:02:00 +10:00
libfdt_env.h powerpc: Update in-kernel dtc and libfdt to version 1.2.0 2008-08-20 16:34:58 +10:00
libfdt-wrapper.c [POWERPC] Replace remaining __FUNCTION__ occurrences 2008-04-01 20:43:09 +11:00
main.c [POWERPC] Kill flatdevtree.c 2007-12-11 13:46:15 +11:00
Makefile powerpc: Make the 64-bit kernel as a position-independent executable 2008-09-15 11:08:38 -07:00
mktree.c [POWERPC] Support for the Ebony 440GP reference board in arch/powerpc 2007-05-08 14:47:32 +10:00
mpc8xx.c [POWERPC] bootwrapper: Add fsl_get_immr() and 8xx/pq2 clock functions. 2007-10-03 20:36:35 -05:00
mpc8xx.h [POWERPC] bootwrapper: Add fsl_get_immr() and 8xx/pq2 clock functions. 2007-10-03 20:36:35 -05:00
mpc52xx-psc.c [POWERPC] Add bootwrapper function to get virtual reg from the device tree. 2008-04-17 01:01:37 -05:00
mpsc.c [POWERPC] prpmc2800: Clean up dts properties 2008-04-15 21:21:24 +10:00
mv64x60_i2c.c [POWERPC] mv64x60: Remove device tree absolute path references 2008-04-15 21:21:24 +10:00
mv64x60.c [POWERPC] mv64x60: Remove device tree absolute path references 2008-04-15 21:21:24 +10:00
mv64x60.h [POWERPC] Add bootwrapper support for Marvell/mv64x60 hostbridge 2007-05-12 11:32:49 +10:00
ns16550.c [POWERPC] Xilinx: boot support for Xilinx uart 16550. 2008-04-24 13:32:46 -05:00
of.c [POWERPC] bootwrapper: Move linker symbols into ops.h 2007-08-22 15:27:28 +10:00
of.h [POWERPC] Make more OF-related bootwrapper functions available to non-OF platforms 2007-06-28 19:19:28 +10:00
ofconsole.c [POWERPC] Make more OF-related bootwrapper functions available to non-OF platforms 2007-06-28 19:19:28 +10:00
oflib.c powerpc: Change the default link address for pSeries zImage kernels 2008-07-01 11:28:32 +10:00
ops.h [POWERPC] Add bootwrapper function to get virtual reg from the device tree. 2008-04-17 01:01:37 -05:00
page.h powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
planetcore.c [POWERPC] bootwrapper: Add PlanetCore firmware support 2007-10-03 11:48:43 +10:00
planetcore.h [POWERPC] bootwrapper: Add PlanetCore firmware support 2007-10-03 11:48:43 +10:00
ppc_asm.h powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
ppcboot.h [POWERPC] bootwrapper: Add TARGET_HAS_ETHn tests to ppcboot.h 2007-08-22 15:21:48 +10:00
pq2.c [POWERPC] bootwrapper: Add fsl_get_immr() and 8xx/pq2 clock functions. 2007-10-03 20:36:35 -05:00
pq2.h [POWERPC] bootwrapper: Add fsl_get_immr() and 8xx/pq2 clock functions. 2007-10-03 20:36:35 -05:00
prpmc2800.c [POWERPC] mv64x60: Remove device tree absolute path references 2008-04-15 21:21:24 +10:00
ps3-head.S [POWERPC] PS3: Bootwrapper improvements 2008-04-01 20:43:07 +11:00
ps3-hvcall.S [POWERPC] PS3: Fix bootwrapper hang bug 2008-02-14 22:11:01 +11:00
ps3.c [POWERPC] PS3: Bootwrapper improvements 2008-04-01 20:43:07 +11:00
README powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
redboot-8xx.c [POWERPC] 8xx: Analogue & Micro Adder875 board support. 2008-01-23 19:34:40 -06:00
redboot-83xx.c [POWERPC] 83xx: Add support for Analogue & Micro ASP837E board 2008-06-02 14:44:25 -05:00
redboot.h [POWERPC] 8xx: Analogue & Micro Adder875 board support. 2008-01-23 19:34:40 -06:00
reg.h [POWERPC] 4xx: Add mfspr/mtspr inline macros to 4xx bootwrapper 2007-12-23 13:14:22 -06:00
rs6000.h powerpc: Make COFF zImages for old 32-bit powermacs 2006-01-14 15:04:06 +11:00
serial.c [POWERPC] mv64x60: Fix FDT compatible names: mv64x60 => mv64360 2008-04-15 21:21:24 +10:00
simple_alloc.c [POWERPC] bootwrapper: Use `unsigned long' for malloc sizes 2007-04-24 22:06:54 +10:00
simpleboot.c powerpc/virtex: Fix booting of Xilinx FPGAs with 16550 for 405 and 440 2008-07-04 00:58:59 -06:00
stdio.c [POWERPC] Add u64 printf to bootwrapper 2007-06-28 19:16:48 +10:00
stdio.h [POWERPC] Add gcc format warnings to zImage printf() 2007-03-26 15:11:20 +10:00
stdlib.c [POWERPC] bootwrapper: Add strtoull() 2007-09-14 01:33:23 +10:00
stdlib.h [POWERPC] bootwrapper: Add strtoull() 2007-09-14 01:33:23 +10:00
string.h [POWERPC] Add memchr() to the bootwrapper 2007-10-12 14:13:44 +10:00
string.S [POWERPC] Add memchr() to the bootwrapper 2007-10-12 14:13:44 +10:00
treeboot-bamboo.c [POWERPC] cuimage for Bamboo board 2007-09-19 21:13:16 -05:00
treeboot-ebony.c [POWERPC] bootwrapper: Move linker symbols into ops.h 2007-08-22 15:27:28 +10:00
treeboot-walnut.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
types.h [POWERPC] Add signed types to bootwrapper 2007-06-28 19:16:47 +10:00
uartlite.c [POWERPC] Uartlite: bootwrapper bug fix, getc loops forever 2007-10-10 09:14:35 -06:00
util.S [POWERPC] Add non-OF serial console support 2006-10-23 12:49:19 +10:00
virtex405-head.S [POWERPC] bootwrapper: Add a firmware-independent simpleboot target. 2008-04-02 20:36:11 -05:00
virtex.c powerpc/virtex: Fix booting of Xilinx FPGAs with 16550 for 405 and 440 2008-07-04 00:58:59 -06:00
wrapper powerpc: Sync RPA note in zImage with kernel's RPA note 2008-10-10 15:55:19 +11:00
zImage.coff.lds.S powerpc: Change the default link address for pSeries zImage kernels 2008-07-01 11:28:32 +10:00
zImage.lds.S powerpc: Change the default link address for pSeries zImage kernels 2008-07-01 11:28:32 +10:00
zImage.ps3.lds.S [POWERPC] PS3: Bootwrapper support. 2007-07-10 21:56:40 +10:00

README 

To extract the kernel vmlinux, System.map, .config or initrd from the zImage binary:

objcopy -j .kernel:vmlinux -O binary zImage vmlinux.gz
objcopy -j .kernel:System.map -O binary zImage System.map.gz
objcopy -j .kernel:.config -O binary zImage config.gz
objcopy -j .kernel:initrd -O binary zImage.initrd initrd.gz


	Peter