Eugeniy Paltsev edb64bca50 ARC: u-boot args: check that magic number is correct ... In case of devboards we really often disable bootloader and load Linux image in memory via JTAG. Even if kernel tries to verify uboot_tag and uboot_arg there is sill a chance that we treat some garbage in registers as valid u-boot arguments in JTAG case. E.g. it is enough to have '1' in r0 to treat any value in r2 as a boot command line. So check that magic number passed from u-boot is correct and drop u-boot arguments otherwise. That helps to reduce the possibility of using garbage as u-boot arguments in JTAG case. We can safely check U-boot magic value (0x0) in linux passed via r1 register as U-boot pass it from the beginning. So there is no backward-compatibility issues. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>		2019-02-25 12:11:01 -08:00
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.gitignore	ARC: Add some .gitignore entries	2013-08-26 09:40:24 +05:30
arc_hostlink.c	ARC: Hostlink Pseudo-Driver for Metaware Debugger	2013-02-15 23:16:10 +05:30
arcksyms.c	ARC: export __udivdi3 for modules	2016-08-19 14:09:33 -07:00
asm-offsets.c	ARCv2: [vdk] dts files and defconfig for HS38 VDK	2015-06-25 06:00:21 +05:30
ctx_sw_asm.S	ARC: dw2 unwind: enable cfi pseudo ops in string lib	2016-09-30 14:48:22 -07:00
ctx_sw.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>	2017-03-02 08:42:34 +01:00
devtree.c	ARC: [plat-hsdk] initial port for HSDK board	2017-09-01 11:26:28 -07:00
disasm.c	ARC: rename kconfig option for unaligned emulation	2014-10-13 14:46:15 +05:30
entry-arcv2.S	ARCv2: support manual regfile save on interrupts	2019-02-21 11:03:18 -08:00
entry-compact.S	ARC: typos fix in kernel/entry-compact.S	2017-08-28 15:17:36 -07:00
entry.S	ARC: Re-enable MMU upon Machine Check exception	2017-09-01 11:29:05 -07:00
fpu.c	ARC: Process-creation/scheduling/idle-loop	2013-02-11 20:00:38 +05:30
head.S	ARC: u-boot args: check that magic number is correct	2019-02-25 12:11:01 -08:00
intc-arcv2.c	ARCv2: Add explcit unaligned access support (and ability to disable too)	2019-02-25 12:10:58 -08:00
intc-compact.c	ARCv2: SMP: Mask only private-per-core IRQ lines on boot at core intc	2017-08-28 16:11:15 -07:00
irq.c	ARC: Enable machine_desc->init_per_cpu for !CONFIG_SMP	2018-06-20 16:12:06 -07:00
kgdb.c	kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops	2018-12-30 08:33:06 +00:00
kprobes.c	bpf/error-inject/kprobes: Clear current_kprobe and enable preempt in kprobe	2018-06-21 12:33:19 +02:00
Makefile	ARC: Remove empty kernel/pcibios.c	2017-08-02 14:53:35 -05:00
mcip.c	ARC: mcip: update MCIP debug mask when the new cpu came online	2018-02-28 10:45:31 -08:00
module.c	ARC: module: Fix !CONFIG_ARC_DW2_UNWIND builds	2017-01-18 11:17:44 -08:00
perf_event.c	ARC: perf: avoid kernel killing where it is possible	2019-01-17 14:38:00 -08:00
process.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
ptrace.c	ARCv2: ptrace: provide regset for accumulator/r30 regs	2017-05-03 11:21:31 -07:00
reset.c	arc: export symbol for pm_power_off in reset.c	2013-11-06 10:41:44 +05:30
setup.c	ARC: u-boot args: check that magic number is correct	2019-02-25 12:11:01 -08:00
signal.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
smp.c	ARC: setup cpu possible mask according to possible-cpus dts property	2018-02-28 10:45:32 -08:00
stacktrace.c	arc: do not use __print_symbol()	2017-12-20 12:41:43 -08:00
sys.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/arc: Push siginfo generation into unhandled_exception	2018-09-27 21:59:17 +02:00
troubleshoot.c	ARCv2: Add explcit unaligned access support (and ability to disable too)	2019-02-25 12:10:58 -08:00
unaligned.c	ARC: [arcompact] brown paper bag bug in unaligned access delay slot fixup	2017-02-07 10:02:01 -08:00
unwind.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
vmlinux.lds.S	vmlinux.lds.h: Move LSM_TABLE into INIT_DATA	2018-10-10 20:40:21 -07:00