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2103f6cba6
linux/arch/arm/kernel
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Stephen Warren 2103f6cba6 ARM: 7807/1: kexec: validate CPU hotplug support 
Architectures should fully validate whether kexec is possible as part of
machine_kexec_prepare(), so that user-space's kexec_load() operation can
report any problems. Performing validation in machine_kexec() itself is
too late, since it is not allowed to return.

Prior to this patch, ARM's machine_kexec() was testing after-the-fact
whether machine_kexec_prepare() was able to disable all but one CPU.
Instead, modify machine_kexec_prepare() to validate all conditions
necessary for machine_kexec_prepare()'s to succeed. BUG if the validation
succeeded, yet disabling the CPUs didn't actually work.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-08-13 20:23:18 +01:00
..
.gitignore
arch_timer.c sched_clock: Make ARM's sched_clock generic for all architectures 2013-06-12 14:02:13 -07:00
armksyms.c Merge branches 'audit', 'delay', 'fixes', 'misc' and 'sta2x11' into for-linus 2012-07-27 23:06:32 +01:00
arthur.c
asm-offsets.c ARM: kernel: implement stack pointer save array through MPIDR hashing 2013-06-20 11:24:11 +01:00
atags_compat.c ARM: 7505/1: split out ATAGS parsing 2012-09-03 22:55:56 +01:00
atags_parse.c ARM: 7505/1: split out ATAGS parsing 2012-09-03 22:55:56 +01:00
atags_proc.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
atags.h ARM: 7506/1: allow for ATAGS to be configured out when DT support is selected 2012-09-03 22:56:15 +01:00
bios32.c ARM: pci: create pci_common_init_dev() 2013-06-03 08:02:47 +02:00
calls.S ARM: 7665/1: Wire up kcmp syscall 2013-03-03 22:54:18 +00:00
cpuidle.c
crash_dump.c
debug.S ARM: compile fix for DEBUG_LL=y && MMU=n 2013-01-16 14:30:06 -08:00
devtree.c ARM: dt: Only print warning, not WARN() on bad cpu map in device tree 2013-06-29 17:00:40 -07:00
dma-isa.c
dma.c
early_printk.c early_printk: consolidate random copies of identical code 2013-04-29 18:28:13 -07:00
elf.c
entry-armv.S ARM: allow kuser helpers to be removed from the vector page 2013-07-31 22:01:48 +01:00
entry-common.S Merge branch 'devel-stable' into for-next 2013-06-29 11:44:43 +01:00
entry-header.S Merge branch 'for-next' of git://git.pengutronix.de/git/ukl/linux into devel-stable 2013-05-22 10:52:24 +01:00
entry-v7m.S ARM: 7800/1: ARMv7-M: Fix name of NVIC handler function 2013-07-31 11:12:58 +01:00
etm.c ARM/etm/sysrq: fix inconstistent help message of sysrq key 2013-04-30 17:04:10 -07:00
fiq.c ARM: update FIQ support for relocation of vectors 2013-07-31 21:34:56 +01:00
fiqasm.S
ftrace.c ARM: 7468/1: ftrace: Trace function entry before updating index 2012-07-31 10:30:42 +01:00
head-common.S arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
head-nommu.S ARM: Add .text annotations where required after __CPUINIT removal 2013-08-01 14:41:40 +01:00
head.S ARM: Add .text annotations where required after __CPUINIT removal 2013-08-01 14:41:40 +01:00
hw_breakpoint.c arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
hyp-stub.S ARM: 7786/1: hyp: fix macro parameterisation 2013-07-22 14:30:34 +01:00
insn.c
insn.h
io.c
irq.c ARM: irq: Call irqchip_init if no init_irq function is specified 2013-04-02 11:05:40 -07:00
isa.c
iwmmxt.S
jump_label.c
kgdb.c
kprobes-arm.c
kprobes-common.c
kprobes-test-arm.c ARM: kprobes: make more tests conditional 2012-10-09 17:07:43 +02:00
kprobes-test-thumb.c
kprobes-test.c treewide: fix printk typo in multiple drivers 2012-11-19 11:08:17 +01:00
kprobes-test.h
kprobes-thumb.c ARM: 7423/1: kprobes: run t32_simulate_ldr_literal() without insn slot 2012-06-14 15:11:44 +01:00
kprobes.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
kprobes.h
machine_kexec.c ARM: 7807/1: kexec: validate CPU hotplug support 2013-08-13 20:23:18 +01:00
Makefile Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-07-06 14:09:38 -07:00
module.c Finally eradicate CONFIG_HOTPLUG 2013-06-03 14:20:18 -07:00
opcodes.c
patch.c
patch.h
perf_event_cpu.c arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
perf_event_v6.c ARM: perf: don't pretend to support counting of L1I writes 2013-01-16 12:01:59 +00:00
perf_event_v7.c ARM: 7663/1: perf: fix ARMv7 EVTYPE_MASK to include NSH bit 2013-03-03 22:54:17 +00:00
perf_event_xscale.c ARM: perf: don't pretend to support counting of L1I writes 2013-01-16 12:01:59 +00:00
perf_event.c ARM: 7765/1: perf: Record the user-mode PC in the call chain. 2013-06-24 15:23:29 +01:00
pj4-cp0.c
process.c Merge branch 'security-fixes' into fixes 2013-08-03 10:49:38 +01:00
psci_smp.c arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
psci.c arm: introduce psci_smp_ops 2013-05-21 14:24:11 +00:00
ptrace.c ptrace/arm: revert "hw_breakpoints: Fix racy access to ptrace breakpoints" 2013-07-09 10:33:25 -07:00
relocate_kernel.S
return_address.c ARM: 7676/1: fix a wrong value returned from CALLER_ADDRn 2013-03-19 11:43:46 +00:00
setup.c ARM: 7787/1: virt: ensure visibility of __boot_cpu_mode 2013-07-26 12:01:17 +01:00
signal.c ARM: fix nommu builds with 48be69a02 (ARM: move signal handlers into a vdso-like page) 2013-08-03 10:49:01 +01:00
sleep.S ARM: kernel: implement stack pointer save array through MPIDR hashing 2013-06-20 11:24:11 +01:00
smp_scu.c Merge branch 'for-next' of git://git.pengutronix.de/git/ukl/linux into devel-stable 2013-03-09 15:49:32 +00:00
smp_tlb.c ARM: 7789/1: Do not run dummy_flush_tlb_a15_erratum() on non-Cortex-A15 2013-07-26 12:02:09 +01:00
smp_twd.c arm: delete __cpuinit/__CPUINIT usage from all ARM users 2013-07-14 19:36:52 -04:00
smp.c ARM: 7807/1: kexec: validate CPU hotplug support 2013-08-13 20:23:18 +01:00
stacktrace.c
suspend.c ARM: kernel: implement stack pointer save array through MPIDR hashing 2013-06-20 11:24:11 +01:00
swp_emulate.c arm: single_open() leaks 2013-05-05 00:07:22 -04:00
sys_arm.c arm: switch to generic fork/vfork/clone 2012-11-28 22:13:54 -05:00
sys_oabi-compat.c
tcm.c ARM: 7694/1: ARM, TCM: initialize TCM in paging_init(), instead of setup_arch() 2013-04-17 16:53:24 +01:00
thumbee.c
time.c sched_clock: Make ARM's sched_clock generic for all architectures 2013-06-12 14:02:13 -07:00
topology.c ARM: 7742/1: topology: export cpu_topology 2013-06-05 23:32:26 +01:00
traps.c ARM: move signal handlers into a vdso-like page 2013-08-01 14:31:56 +01:00
unwind.c
vmlinux.lds.S ARM: use linker magic for vectors and vector stubs 2013-07-31 21:34:24 +01:00
xscale-cp0.c