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Benjamin Herrenschmidt 528229d210 powerpc: Add support for adding an ESM blob to the zImage wrapper 
For secure VMs, the signing tool will create a ticket called the "ESM blob"
for the Enter Secure Mode ultravisor call with the signatures of the kernel
and initrd among other things.

This adds support to the wrapper script for adding that blob via the "-e"
option to the zImage.pseries.

It also adds code to the zImage wrapper itself to retrieve and if necessary
relocate the blob, and pass its address to Linux via the device-tree, to be
later consumed by prom_init.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[ bauerman: Minor adjustments to some comments. ]
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190820021326.6884-4-bauerman@linux.ibm.com
2019-08-30 09:53:29 +10:00
..
dts treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
.gitignore powerpc/boot: pass CONFIG options in a simpler and more robust way 2019-07-10 13:20:44 +10:00
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epapr-wrapper.c
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fixed-head.S
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install.sh
io.h
libfdt_env.h
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main.c powerpc: Add support for adding an ESM blob to the zImage wrapper 2019-08-30 09:53:29 +10:00
Makefile powerpc/boot: pass CONFIG options in a simpler and more robust way 2019-07-10 13:20:44 +10:00
mktree.c
motload-head.S
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wrapper powerpc: Add support for adding an ESM blob to the zImage wrapper 2019-08-30 09:53:29 +10:00
xz_config.h powerpc/boot: add {get, put}_unaligned_be32 to xz_config.h 2019-07-10 13:20:44 +10:00
zImage.coff.lds.S
zImage.lds.S powerpc: Add support for adding an ESM blob to the zImage wrapper 2019-08-30 09:53:29 +10:00
zImage.ps3.lds.S

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