linux_dsm_epyc7002/arch/s390
Vasily Gorbik 8f75582a2f s390: remove decompressor's head.S
Decompressor's head.S provided "data mover" sole purpose of which has
been to safely move uncompressed kernel at 0x100000 and jump to it.

With current bzImage layout entire decompressor's code guaranteed to be
in a safe location under 0x100000, and hence could not be overwritten
during kernel move. For that reason head.S could be replaced with simple
memmove function. To do so introduce early boot code phase which is
executed from arch/s390/boot/head.S after "verify_facilities" and takes
care of optional kernel image decompression and transition to it.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-10-09 11:21:02 +02:00
..
appldata s390/appldata: do not use stack buffers for hardware data 2018-10-09 11:20:52 +02:00
boot s390: remove decompressor's head.S 2018-10-09 11:21:02 +02:00
configs s390: update defconfigs 2018-04-27 06:51:31 +02:00
crypto s390/crypto: Fix return code checking in cbc_paes_crypt() 2018-09-04 10:58:17 +02:00
hypfs s390/hypfs: do not use stack buffers for hardware data 2018-10-09 11:20:53 +02:00
include s390: unify stack size definitions 2018-10-09 11:20:58 +02:00
kernel s390: unify stack size definitions 2018-10-09 11:20:58 +02:00
kvm KVM: s390: Properly lock mm context allow_gmap_hpage_1m setting 2018-09-04 11:40:26 +02:00
lib s390/lib: use expoline for all bcr instructions 2018-08-07 13:38:13 +02:00
mm s390: add support for virtually mapped kernel stacks 2018-10-09 11:20:57 +02:00
net Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2018-08-13 19:07:17 -07:00
numa s390/numa: move initial setup of node_to_cpumask_map 2018-08-01 07:48:33 +02:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci s390/pci: remove fmb address from debug output 2018-08-16 14:49:13 +02:00
purgatory s390: clean up stacks setup 2018-09-20 13:20:29 +02:00
scripts s390/build: add *.o.chkbss files to targets list 2018-07-02 12:32:23 +02:00
tools Minor code cleanups for PPC. 2018-08-19 10:38:36 -07:00
defconfig s390/zcrypt: multiple zcrypt device nodes support 2018-10-08 09:09:58 +02:00
Kbuild s390/kexec_file: Add purgatory 2018-04-16 09:10:22 +02:00
Kconfig s390: add support for virtually mapped kernel stacks 2018-10-09 11:20:57 +02:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile kbuild: rename LDFLAGS to KBUILD_LDFLAGS 2018-08-24 08:22:08 +09:00