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d4e81b35b8
linux_dsm_epyc7002/arch/s390/kernel
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Martin Schwidefsky d4e81b35b8 [S390] allow all addressing modes 
The user space program can change its addressing mode between the
24-bit, 31-bit and the 64-bit mode if the kernel is 64 bit. Currently
the kernel always forces the standard amode on signal delivery and
signal return and on ptrace: 64-bit for a 64-bit process, 31-bit for
a compat process and 31-bit kernels. Change the signal and ptrace code
to allow the full range of addressing modes. Signal handlers are
run in the standard addressing mode for the process.

One caveat is that even an 31-bit compat process can switch to the
64-bit mode. The next signal will switch back into the 31-bit mode
and there is no room in the 31-bit compat signal frame to store the
information that the program came from the 64-bit mode.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-10-30 15:16:43 +01:00
..
vdso32 [S390] vdso: disable gcov profiling 2011-05-23 10:24:29 +02:00
vdso64 [S390] vdso: disable gcov profiling 2011-05-23 10:24:29 +02:00
asm-offsets.c [S390] signal race with restarting system calls 2011-10-30 15:16:43 +01:00
audit.c [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
audit.h [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
base.S [S390] kdump backend code 2011-10-30 15:16:42 +01:00
bitmap.c [S390] move EXPORT_SYMBOLs to definitions 2009-03-26 15:24:11 +01:00
compat_audit.c [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
compat_exec_domain.c [S390] Get rid of a lot of sparse warnings. 2007-02-05 21:16:47 +01:00
compat_linux.c [S390] cleanup psw related bits and pieces 2011-10-30 15:16:43 +01:00
compat_linux.h Mark arguments to certain syscalls as being const 2010-08-13 16:53:13 -07:00
compat_ptrace.h [S390] ptrace cleanup 2011-01-05 12:47:31 +01:00
compat_signal.c [S390] allow all addressing modes 2011-10-30 15:16:43 +01:00
compat_wrapper.S [S390] use ENTRY macro for sys_setns_wrapper 2011-10-30 15:16:16 +01:00
cpcmd.c [S390] convert cpcmd printks to pr_xxx macros. 2008-12-25 13:39:19 +01:00
crash_dump.c [S390] kdump backend code 2011-10-30 15:16:42 +01:00
crash.c [S390] Get rid of a lot of sparse warnings. 2007-02-05 21:16:47 +01:00
debug.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
diag.c [S390] replace diag10() with diag10_range() function 2011-05-10 17:13:43 +02:00
dis.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
early.c [S390] cleanup psw related bits and pieces 2011-10-30 15:16:43 +01:00
ebcdic.c [S390] Get rid of a lot of sparse warnings. 2007-02-05 21:16:47 +01:00
entry64.S [S390] add TIF_SYSCALL thread flag 2011-10-30 15:16:43 +01:00
entry.h [S390] cleanup program check handler prototypes 2011-07-24 10:48:21 +02:00
entry.S [S390] add TIF_SYSCALL thread flag 2011-10-30 15:16:43 +01:00
ftrace.c [S390] cleanup ftrace backend functions 2011-01-05 12:47:31 +01:00
head31.S [S390] iucv cr0 enablement bit 2011-07-24 10:48:22 +02:00
head64.S [S390] initial cr0 bits 2011-07-24 10:48:22 +02:00
head_kdump.S [S390] kdump backend code 2011-10-30 15:16:42 +01:00
head.S [S390] kdump backend code 2011-10-30 15:16:42 +01:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
ipl.c [S390] cleanup psw related bits and pieces 2011-10-30 15:16:43 +01:00
irq.c [S390] fix mismatch in summation of I/O IRQ statistics 2011-10-30 15:16:15 +01:00
jump_label.c jump label: Add s390 support 2011-04-04 13:43:16 -04:00
kprobes.c [S390] ptrace cleanup 2011-01-05 12:47:31 +01:00
machine_kexec.c [S390] cleanup psw related bits and pieces 2011-10-30 15:16:43 +01:00
Makefile [S390] kdump backend code 2011-10-30 15:16:42 +01:00
mcount64.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
mcount.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
mem_detect.c [S390] kdump backend code 2011-10-30 15:16:42 +01:00
module.c modules: make arch's use default loader hooks 2011-07-24 22:06:04 +09:30
nmi.c [S390] irq: have detailed statistics for interrupt types 2011-01-05 12:47:25 +01:00
process.c [S390] cleanup psw related bits and pieces 2011-10-30 15:16:43 +01:00
processor.c [S390] avoid warning in show_cpuinfo 2011-10-30 15:16:15 +01:00
ptrace.c [S390] allow all addressing modes 2011-10-30 15:16:43 +01:00
reipl64.S [S390] lowcore cleanup 2011-10-30 15:16:42 +01:00
reipl.S [S390] kdump backend code 2011-10-30 15:16:42 +01:00
relocate_kernel64.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
relocate_kernel.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
s390_ksyms.c [S390] move sie code to entry.S 2011-07-24 10:48:21 +02:00
sclp.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
setup.c [S390] cleanup psw related bits and pieces 2011-10-30 15:16:43 +01:00
signal.c [S390] allow all addressing modes 2011-10-30 15:16:43 +01:00
smp.c [S390] cleanup psw related bits and pieces 2011-10-30 15:16:43 +01:00
stacktrace.c [S390] Fix stacktrace compile bug. 2008-07-17 17:22:09 +02:00
suspend.c PM / Hibernate: Include storage keys in hibernation image on s390 2011-10-16 23:27:46 +02:00
switch_cpu64.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
switch_cpu.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
swsusp_asm64.S PM / Hibernate: Include storage keys in hibernation image on s390 2011-10-16 23:27:46 +02:00
sys_s390.c [S390] sys_personality: follow u_long to unsigned int conversion 2010-08-13 10:06:54 +02:00
syscalls.S All Arch: remove linkage for sys_nfsservctl system call 2011-08-26 15:09:58 -07:00
sysinfo.c [S390] topology: add SCHED_MC config option 2010-10-29 16:50:49 +02:00
time.c time, s390: Get rid of compile warning 2011-10-12 10:24:10 +02:00
topology.c [S390] topology: fix alloc_masks annotation 2011-10-30 15:16:15 +01:00
traps.c [S390] cleanup psw related bits and pieces 2011-10-30 15:16:43 +01:00
vdso.c mm: arch: rename in_gate_area_no_task to in_gate_area_no_mm 2011-03-23 16:36:55 -04:00
vmlinux.lds.S percpu: Always align percpu output section to PAGE_SIZE 2011-03-24 18:50:09 +01:00
vtime.c [S390] cleanup psw related bits and pieces 2011-10-30 15:16:43 +01:00