linux/arch/arm/kernel
Linus Walleij 90f92c631b ARM: 8613/1: Fix the uaccess crash on PB11MPCore
The following patch was sketched by Russell in response to my
crashes on the PB11MPCore after the patch for software-based
priviledged no access support for ARMv8.1. See this thread:
http://marc.info/?l=linux-arm-kernel&m=144051749807214&w=2

I am unsure what is going on, I suspect everyone involved in
the discussion is. I just want to repost this to get the
discussion restarted, as I still have to apply this patch
with every kernel iteration to get my PB11MPCore Realview
running.

Testing by Neil Armstrong on the Oxnas NAS has revealed that
this bug exist also on that widely deployed hardware, so
we are probably currently regressing all ARM11MPCore systems.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Fixes: a5e090acbf ("ARM: software-based priviledged-no-access support")
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2017-01-16 17:30:46 +00:00
..
.gitignore
arch_timer.c
armksyms.c Revert "arm: move exports to definitions" 2016-11-23 10:00:03 +00:00
asm-offsets.c
atags_compat.c
atags_parse.c
atags_proc.c
atags.h
bios32.c
cpuidle.c ARM: 8595/2: apply more __ro_after_init 2016-08-12 16:47:06 +01:00
crash_dump.c
debug.S
devtree.c ARM: 8616/1: dt: Respect property size when parsing CPUs 2016-09-29 16:57:43 +01:00
dma-isa.c
dma.c
early_printk.c
efi.c
elf.c
entry-armv.S ARM: fix address limit restoration for undefined instructions 2016-08-09 22:57:59 +01:00
entry-common.S ARM: convert to generated system call tables 2016-10-18 21:34:06 +01:00
entry-ftrace.S Revert "arm: move exports to definitions" 2016-11-23 10:00:03 +00:00
entry-header.S
entry-v7m.S
fiq.c
fiqasm.S
ftrace.c ftrace: Add return address pointer to ftrace_ret_stack 2016-08-24 12:15:14 +02:00
head-common.S
head-nommu.S ARM: 8607/1: V7M: Wire up caches for V7M processors with cache support. 2016-09-06 15:51:08 +01:00
head.S Revert "arm: move exports to definitions" 2016-11-23 10:00:03 +00:00
hibernate.c
hw_breakpoint.c ARM: 8634/1: hw_breakpoint: blacklist Scorpion CPUs 2017-01-10 23:32:26 +00:00
hyp-stub.S ARM: 8600/1: Enforce some NS-SVC initialisation 2016-08-23 10:08:33 +01:00
insn.c
io.c
irq.c
isa.c
iwmmxt.S
jump_label.c
kgdb.c
machine_kexec.c ARM: kexec: fix kexec for Keystone 2 2016-08-02 19:35:29 -04:00
Makefile Revert "arm: move exports to definitions" 2016-11-23 10:00:03 +00:00
module-plts.c ARM: kernel: avoid brute force search on PLT generation 2016-08-30 17:45:34 +01:00
module.c
module.lds ARM: kernel: merge core and init PLTs 2016-08-30 17:45:34 +01:00
opcodes.c
paravirt.c
patch.c
perf_callchain.c
perf_event_v6.c
perf_event_v7.c arm: perf: move to common attr_group fields 2016-09-09 14:51:51 +01:00
perf_event_xscale.c
perf_regs.c
pj4-cp0.c
process.c ARM: use simpler API for random address requests 2016-10-11 15:06:32 -07:00
psci_smp.c
ptrace.c
reboot.c
reboot.h
relocate_kernel.S
return_address.c
setup.c ARM: 8604/1: V7M: Add support for reading the CTR with read_cpuid_cachetype() 2016-09-06 15:51:07 +01:00
signal.c
sigreturn_codes.S
sleep.S
smccc-call.S Revert "arm: move exports to definitions" 2016-11-23 10:00:03 +00:00
smp_scu.c
smp_tlb.c ARM: 8613/1: Fix the uaccess crash on PB11MPCore 2017-01-16 17:30:46 +00:00
smp_twd.c cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
smp.c nmi_backtrace: do a local dump_stack() instead of a self-NMI 2016-10-07 18:46:30 -07:00
stacktrace.c
suspend.c
swp_emulate.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sys_arm.c
sys_oabi-compat.c arm: oabi compat: add missing access checks 2016-08-10 12:57:45 -07:00
tcm.c
thumbee.c
time.c
topology.c ARM: 8622/3: add sysfs cpu_capacity attribute 2016-11-22 11:45:08 +00:00
traps.c ARM: fix backtrace 2016-11-15 15:25:39 +00:00
unwind.c
v7m.c
vdso.c Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2016-10-06 07:59:37 -07:00
vmlinux-xip.lds.S ARM: Fix XIP kernels 2016-11-16 23:51:19 +00:00
vmlinux.lds.S nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
xscale-cp0.c