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linux-stable/arch/s390/kernel
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Alexander Gordeev 8d96bba75a s390/smp: enforce lowcore protection on CPU restart 
As result of commit 915fea04f9 ("s390/smp: enable DAT before
CPU restart callback is called") the low-address protection bit
gets mistakenly unset in control register 0 save area of the
absolute zero memory. That area is used when manual PSW restart
happened to hit an offline CPU. In this case the low-address
protection for that CPU will be dropped.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Fixes: 915fea04f9 ("s390/smp: enable DAT before CPU restart callback is called")
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
 		2022-09-07 14:04:01 +02:00
..
syscalls arch: syscalls: simplify uapi/kapi directory creation 2022-03-31 12:03:46 +09:00
vdso32 s390/vdso: remove -nostdlib compiler flag 2021-11-16 12:29:19 +01:00
vdso64 s390/vdso: filter out -mstack-guard and -mstack-size 2021-11-16 12:29:19 +01:00
.gitignore
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Makefile Revert "s390/smp: rework absolute lowcore access" 2022-08-06 09:24:07 +02:00
alternative.c s390/alternatives: remove padding generation code 2022-05-17 15:16:28 +02:00
asm-offsets.c s390/stack: add union to reflect kvm stack slot usages 2022-06-01 12:03:17 +02:00
audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
audit.h
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cache.c s390: raise minimum supported machine generation to z10 2022-03-10 15:58:17 +01:00
compat_audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
compat_linux.c
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compat_linux.h s390/compat: cleanup compat_linux.h header file 2022-05-06 20:45:16 +02:00
compat_ptrace.h
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compat_signal.c s390/signal: fix typo in comments 2022-03-08 00:33:01 +01:00
cpcmd.c s390/cpcmd: use physical address for command and response 2021-10-26 15:21:28 +02:00
cpufeature.c s390/uvdevice: autoload module based on CPU facility 2022-07-19 16:18:49 +02:00
crash_dump.c s390/crash: support multi-segment iterators 2022-07-20 17:21:41 +02:00
debug.c s390/sclp: add tracing of SCLP interactions 2021-08-25 11:03:35 +02:00
diag.c s390/extable: move EX_TABLE define to asm-extable.h 2022-03-08 00:33:00 +01:00
dis.c s390/disassembler: update opcode table 2021-12-16 19:58:07 +01:00
dumpstack.c exit: Add and use make_task_dead. 2021-12-13 12:04:45 -06:00
early.c s390: simplify early program check handler 2022-05-25 11:46:02 +02:00
early_printk.c s390/sclp: remove unused sclp_early_printk_forced 2020-09-21 08:08:44 +02:00
earlypgm.S s390: generate register offsets into pt_regs automatically 2022-05-25 11:46:02 +02:00
ebcdic.c
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entry.S s390/mcck: isolate SIE instruction when setting CIF_MCCK_GUEST flag 2022-06-01 12:03:16 +02:00
entry.h s390: simplify early program check handler 2022-05-25 11:46:02 +02:00
fpu.c s390: convert to generic entry 2021-01-19 12:29:26 +01:00
ftrace.c ftrace: Remove return value of ftrace_arch_modify_*() 2022-05-26 21:13:00 -04:00
ftrace.h s390: raise minimum supported machine generation to z10 2022-03-10 15:58:17 +01:00
guarded_storage.c
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head64.S s390: remove invalid email address of Heiko Carstens 2022-02-06 23:31:29 +01:00
idle.c s390/time,idle: get rid of unsigned long long 2021-03-08 10:46:27 +01:00
ima_arch.c
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ipl.c Revert "s390/smp: rework absolute lowcore access" 2022-08-06 09:24:07 +02:00
ipl_vmparm.c s390/cio: remove unused include linux/spinlock.h from cio.h 2021-07-27 09:39:13 +02:00
irq.c s390/irq: utilize RCU instead of irq_lock_sparse() in show_msi_interrupt() 2022-04-27 12:53:34 +02:00
jump_label.c jump_label: make initial NOP patching the special case 2022-06-24 09:48:55 +02:00
kdebugfs.c
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kexec_elf.c
…
kexec_image.c
…
kprobes.c s390/kprobes: enable kretprobes framepointer verification 2022-03-27 22:18:39 +02:00
kprobes_insn_page.S s390/kprobes: move insn_page to text segment 2020-10-09 23:45:30 +02:00
lgr.c s390/lgr: use simple assignment instead of memcpy 2022-02-06 23:31:29 +01:00
machine_kexec.c Revert "s390/smp: rework absolute lowcore access" 2022-08-06 09:24:07 +02:00
machine_kexec_file.c kexec, KEYS, s390: Make use of built-in and secondary keyring for signature verification 2022-07-15 12:21:16 -04:00
machine_kexec_reloc.c s390/kaslr: add support for R_390_JMP_SLOT relocation type 2020-05-20 10:13:27 +02:00
mcount.S s390/kprobes: Avoid additional kprobe in kretprobe handling 2022-03-10 15:58:17 +01:00
module.c jump_label: mips: move module NOP patching into arch code 2022-06-24 09:48:55 +02:00
nmi.c s390/boot: fix absolute zero lowcore corruption on boot 2022-09-07 14:04:01 +02:00
nospec-branch.c s390: raise minimum supported machine generation to z10 2022-03-10 15:58:17 +01:00
nospec-sysfs.c s390: introduce nospec_uses_trampoline() 2021-10-26 15:21:29 +02:00
numa.c drivers/base/node: consolidate node device subsystem initialization in node_dev_init() 2022-03-22 15:57:10 -07:00
os_info.c Revert "s390/smp: rework absolute lowcore access" 2022-08-06 09:24:07 +02:00
perf_cpum_cf.c s390/cpumf: Handle events cycles and instructions identical 2022-06-23 17:23:59 +02:00
perf_cpum_cf_common.c s390/cpumf: Support for CPU Measurement Facility CSVN 7 2022-01-17 14:13:08 +01:00
perf_cpum_cf_events.c s390/cpumf: add new extended counter set for IBM z16 2022-05-16 10:58:33 +02:00
perf_cpum_sf.c s390/cpumf: Support for CPU Measurement Sampling Facility LS bit 2022-01-17 14:13:08 +01:00
perf_event.c s390/stack: add union to reflect kvm stack slot usages 2022-06-01 12:03:17 +02:00
perf_pai_crypto.c s390/pai: Fix multiple concurrent event installation 2022-06-23 17:24:00 +02:00
perf_regs.c perf/arch: Remove perf_sample_data::regs_user_copy 2020-11-09 18:12:34 +01:00
process.c s390: fix double free of GS and RI CBs on fork() failure 2022-08-25 15:12:32 +02:00
processor.c s390/cpufeature: rework to allow more than only hwcap bits 2022-07-19 16:18:49 +02:00
ptrace.c ptrace: Cleanups for v5.18 2022-03-28 17:29:53 -07:00
reipl.S
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relocate_kernel.S s390/kexec: set end-of-ipl flag in last diag308 call 2022-04-25 13:54:12 +02:00
runtime_instr.c s390/runtime_instrumentation: fix storage key handling 2020-08-17 13:17:10 +02:00
setup.c s390/smp: enforce lowcore protection on CPU restart 2022-09-07 14:04:01 +02:00
signal.c ptrace: Cleanups for v5.18 2022-03-28 17:29:53 -07:00
smp.c Revert "s390/smp: rework absolute lowcore access" 2022-08-06 09:24:07 +02:00
stacktrace.c s390: remove invalid email address of Heiko Carstens 2022-02-06 23:31:29 +01:00
sthyi.c s390/sthyi: use register pair instead of register asm 2021-06-18 16:41:22 +02:00
syscall.c s390: add support for BEAR enhancement facility 2021-10-26 15:21:29 +02:00
sysinfo.c s390/extable: move EX_TABLE define to asm-extable.h 2022-03-08 00:33:00 +01:00
text_amode31.S s390/extable: move EX_TABLE define to asm-extable.h 2022-03-08 00:33:00 +01:00
time.c s390/stp: clock_delta should be signed 2022-05-11 14:40:57 +02:00
topology.c s390: remove invalid email address of Heiko Carstens 2022-02-06 23:31:29 +01:00
trace.c
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traps.c s390/traps: improve panic message for translation-specification exception 2022-03-27 22:18:38 +02:00
unwind_bc.c s390/unwind: avoid duplicated unwinding entries for kretprobes 2022-03-27 22:18:39 +02:00
uprobes.c s390: raise minimum supported machine generation to z10 2022-03-10 15:58:17 +01:00
uv.c KVM: s390: pv: add export before import 2022-07-13 14:42:11 +00:00
vdso.c s390/vdso: add vdso randomization 2022-04-25 13:54:15 +02:00
vmlinux.lds.S s390: fix nospec table alignments 2022-08-30 21:57:07 +02:00
vtime.c s390: assume stckf is always present 2022-03-10 15:58:17 +01:00