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d1b52a4388
linux/arch/s390/kernel
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Vasily Gorbik d1b52a4388 s390: introduce .boot.data section 
Introduce .boot.data section which is "shared" between the decompressor
code and the decompressed kernel. The decompressor will store values in
it, and copy over to the decompressed image before starting it. This
method allows to avoid using pre-defined addresses and other hacks to
pass values between those boot phases.

.boot.data section is a part of init data, and will be freed after kernel
initialization is complete.

For uncompressed kernel image, .boot.data section is basically the same
as .init.data

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 11:21:06 +02:00
..
syscalls kbuild: do not redirect the first prerequisite for filechk 2018-07-28 10:34:10 +09:00
vdso32 s390/vdso: correct CFI annotations of vDSO functions 2018-09-20 13:20:29 +02:00
vdso64 s390/vdso: correct CFI annotations of vDSO functions 2018-09-20 13:20:29 +02:00
.gitignore s390: add various .gitignore files. 2012-05-16 14:42:41 +02:00
alternative.c s390: add automatic detection of the spectre defense 2018-03-28 08:38:24 +02:00
asm-offsets.c s390: add support for virtually mapped kernel stacks 2018-10-09 11:20:57 +02:00
audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
audit.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
base.S s390: add support for virtually mapped kernel stacks 2018-10-09 11:20:57 +02:00
cache.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_linux.c mm: add ksys_readahead() helper; remove in-kernel calls to sys_readahead() 2018-04-02 20:16:12 +02:00
compat_linux.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_ptrace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_signal.c s390/compat: fix setup_frame32 2018-04-10 07:38:54 +02:00
compat_wrapper.c s390: wire up rseq system call 2018-07-04 08:35:18 +02:00
cpcmd.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crash_dump.c s390/kdump: Remove kzalloc_panic 2018-08-16 14:49:15 +02:00
debug.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
diag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dis.c s390: kernel: add SPDX identifiers to the remaining files 2017-11-24 15:37:12 +01:00
dumpstack.c s390: unify stack size definitions 2018-10-09 11:20:58 +02:00
early_nobss.c s390: rescue initrd as early as possible 2018-10-09 11:21:05 +02:00
early_printk.c s390/hibernate: fix error handling when suspend cpu != resume cpu 2018-09-20 13:20:23 +02:00
early.c s390/boot: block uncompressed vmlinux booting attempts 2018-07-02 11:25:05 +02:00
ebcdic.c s390: ebcdic: convert comments to UTF-8 2018-08-23 18:48:43 -07:00
entry.h s390: add support for virtually mapped kernel stacks 2018-10-09 11:20:57 +02:00
entry.S s390: add support for virtually mapped kernel stacks 2018-10-09 11:20:57 +02:00
fpu.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ftrace.c s390/ftrace: Add -mfentry and -mnop-mcount support 2018-08-15 22:39:53 -04:00
guarded_storage.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-13 11:47:01 -08:00
head64.S s390: add support for virtually mapped kernel stacks 2018-10-09 11:20:57 +02:00
idle.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ipl.c s390/ipl: remove reipl_method and dump_method 2018-04-10 07:39:00 +02:00
irq.c s390: unify stack size definitions 2018-10-09 11:20:58 +02:00
jump_label.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kdebugfs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kexec_elf.c s390/kexec_file: Add ELF loader 2018-04-16 09:10:23 +02:00
kexec_image.c s390/kexec_file: Add crash support to image loader 2018-04-16 09:10:22 +02:00
kprobes.c bpf/error-inject/kprobes: Clear current_kprobe and enable preempt in kprobe 2018-06-21 12:33:19 +02:00
lgr.c s390: kernel: add SPDX identifiers to the remaining files 2017-11-24 15:37:12 +01:00
machine_kexec_file.c s390/kexec_file: Add ELF loader 2018-04-16 09:10:23 +02:00
machine_kexec.c s390: add support for virtually mapped kernel stacks 2018-10-09 11:20:57 +02:00
Makefile s390/boot: make head.S and als.c be part of the decompressor only 2018-06-25 10:14:38 +02:00
mcount.S s390/ftrace: Add -mfentry and -mnop-mcount support 2018-08-15 22:39:53 -04:00
module.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
nmi.c headers: untangle kmemleak.h from mm.h 2018-04-05 21:36:27 -07:00
nospec-branch.c s390: detect etoken facility 2018-07-18 08:32:17 +02:00
nospec-sysfs.c s390: detect etoken facility 2018-07-18 08:32:17 +02:00
os_info.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf_cpum_cf_events.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
perf_cpum_cf.c s390: kernel: Remove redundant license text 2017-11-24 15:37:20 +01:00
perf_cpum_sf.c Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-08-21 13:47:29 -07:00
perf_event.c s390: kernel: Remove redundant license text 2017-11-24 15:37:20 +01:00
perf_regs.c s390/perf: fix gcc 8 array-bounds warning 2018-07-02 11:24:54 +02:00
pgm_check.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
process.c s390: update sampling tag after task pid change 2018-04-23 07:57:17 +02:00
processor.c s390: run user space and KVM guests with modified branch prediction 2018-02-05 14:48:50 +01:00
ptrace.c s390/gs: add compat regset for the guarded storage broadcast control block 2017-11-28 17:33:15 +01:00
reipl.S s390/kernel: use expoline for indirect branches 2018-05-07 21:12:39 +02:00
relocate_kernel.S s390: assume diag308 set always works 2018-04-10 07:38:59 +02:00
runtime_instr.c s390/runtime_instrumentation: re-add signum system call parameter 2018-02-05 07:34:50 +01:00
setup.c s390: unify stack size definitions 2018-10-09 11:20:58 +02:00
signal.c s390: wire up rseq system call 2018-07-04 08:35:18 +02:00
smp.c s390: unify stack size definitions 2018-10-09 11:20:58 +02:00
stacktrace.c s390: kernel: add SPDX identifiers to the remaining files 2017-11-24 15:37:12 +01:00
sthyi.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
suspend.c s390: unify linker symbols usage 2018-02-27 08:05:23 +01:00
swsusp.S s390: add support for virtually mapped kernel stacks 2018-10-09 11:20:57 +02:00
sys_s390.c mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff() 2018-04-02 20:16:11 +02:00
sysinfo.c s390/sysinfo: add missing #ifdef CONFIG_PROC_FS 2018-07-02 12:32:20 +02:00
time.c s390/time: Remove read_boot_clock64() 2018-07-20 00:02:41 +02:00
topology.c s390/topology: correct topology mode proc handler 2018-07-06 08:47:53 +02:00
trace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
traps.c signal/s390: Use force_sig_fault where appropriate 2018-04-25 10:44:08 -05:00
uprobes.c s390/uprobes: implement arch_uretprobe_is_alive() 2018-04-23 07:57:16 +02:00
vdso.c s390/vdso: avoid 64-bit vdso mapping for compat tasks 2018-09-20 13:20:29 +02:00
vmlinux.lds.S s390: introduce .boot.data section 2018-10-09 11:21:06 +02:00
vtime.c s390: kernel: add SPDX identifiers to the remaining files 2017-11-24 15:37:12 +01:00