74b8423345
Pull x86 BSP hotplug changes from Ingo Molnar: "This tree enables CPU#0 (the boot processor) to be onlined/offlined on x86, just like any other CPU. Enabled on Intel CPUs for now. Allowing this required the identification and fixing of latent CPU#0 assumptions (such as CPU#0 initializations, etc.) in the x86 architecture code, plus the identification of barriers to BSP-offlining, such as active PIC interrupts which can only be serviced on the BSP. It's behind a default-off option, and there's a debug option that allows the automatic testing of this feature. The motivation of this feature is to allow and prepare for true CPU-hotplug hardware support: recent changes to MCE support enable us to detect a deteriorating but not yet hard-failing L1/L2 cache on a CPU that could be soft-unplugged - or a failing L3 cache on a multi-socket system. Note that true hardware hot-plug is not yet fully enabled by this, because that requires a special platform wakeup sequence to be sent to the freshly powered up CPU#0. Future patches for this are planned, once such a platform exists. Chicken and egg" * 'x86-bsp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, topology: Debug CPU0 hotplug x86/i387.c: Initialize thread xstate only on CPU0 only once x86, hotplug: Handle retrigger irq by the first available CPU x86, hotplug: The first online processor saves the MTRR state x86, hotplug: During CPU0 online, enable x2apic, set_numa_node. x86, hotplug: Wake up CPU0 via NMI instead of INIT, SIPI, SIPI x86-32, hotplug: Add start_cpu0() entry point to head_32.S x86-64, hotplug: Add start_cpu0() entry point to head_64.S kernel/cpu.c: Add comment for priority in cpu_hotplug_pm_callback x86, hotplug, suspend: Online CPU0 for suspend or hibernate x86, hotplug: Support functions for CPU0 online/offline x86, topology: Don't offline CPU0 if any PIC irq can not be migrated out of it x86, Kconfig: Add config switch for CPU0 hotplug doc: Add x86 CPU0 online/offline feature |
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ABI | ||
accounting | ||
acpi | ||
aoe | ||
arm | ||
arm64 | ||
auxdisplay | ||
backlight | ||
blackfin | ||
block | ||
blockdev | ||
cdrom | ||
cgroups | ||
connector | ||
console | ||
cpu-freq | ||
cpuidle | ||
cris | ||
crypto | ||
development-process | ||
device-mapper | ||
devicetree | ||
DocBook | ||
driver-model | ||
dvb | ||
early-userspace | ||
EDID | ||
extcon | ||
fault-injection | ||
fb | ||
filesystems | ||
firmware_class | ||
frv | ||
hid | ||
hwmon | ||
i2c | ||
i2o | ||
ia64 | ||
ide | ||
infiniband | ||
input | ||
ioctl | ||
isdn | ||
ja_JP | ||
kbuild | ||
kdump | ||
ko_KR | ||
laptops | ||
leds | ||
m68k | ||
make | ||
memory-devices | ||
mips | ||
misc-devices | ||
mmc | ||
mn10300 | ||
mtd | ||
namespaces | ||
netlabel | ||
networking | ||
nfc | ||
parisc | ||
PCI | ||
pcmcia | ||
power | ||
powerpc | ||
pps | ||
prctl | ||
pti | ||
ptp | ||
rapidio | ||
RCU | ||
s390 | ||
scheduler | ||
scsi | ||
security | ||
serial | ||
sh | ||
sound | ||
spi | ||
sysctl | ||
target | ||
thermal | ||
timers | ||
trace | ||
usb | ||
vDSO | ||
video4linux | ||
virtual | ||
vm | ||
w1 | ||
watchdog | ||
wimax | ||
x86 | ||
zh_CN | ||
.gitignore | ||
00-INDEX | ||
applying-patches.txt | ||
atomic_ops.txt | ||
bad_memory.txt | ||
basic_profiling.txt | ||
binfmt_misc.txt | ||
braille-console.txt | ||
bt8xxgpio.txt | ||
btmrvl.txt | ||
BUG-HUNTING | ||
bus-virt-phys-mapping.txt | ||
cachetlb.txt | ||
Changes | ||
circular-buffers.txt | ||
clk.txt | ||
coccinelle.txt | ||
CodingStyle | ||
cpu-hotplug.txt | ||
cpu-load.txt | ||
cputopology.txt | ||
crc32.txt | ||
dcdbas.txt | ||
debugging-modules.txt | ||
debugging-via-ohci1394.txt | ||
dell_rbu.txt | ||
devices.txt | ||
digsig.txt | ||
DMA-API-HOWTO.txt | ||
DMA-API.txt | ||
DMA-attributes.txt | ||
dma-buf-sharing.txt | ||
DMA-ISA-LPC.txt | ||
dmaengine.txt | ||
dontdiff | ||
dynamic-debug-howto.txt | ||
edac.txt | ||
eisa.txt | ||
email-clients.txt | ||
flexible-arrays.txt | ||
futex-requeue-pi.txt | ||
gcov.txt | ||
gpio.txt | ||
highuid.txt | ||
HOWTO | ||
hw_random.txt | ||
hwspinlock.txt | ||
init.txt | ||
initrd.txt | ||
Intel-IOMMU.txt | ||
intel_txt.txt | ||
io-mapping.txt | ||
io_ordering.txt | ||
iostats.txt | ||
IPMI.txt | ||
IRQ-affinity.txt | ||
IRQ-domain.txt | ||
IRQ.txt | ||
irqflags-tracing.txt | ||
isapnp.txt | ||
java.txt | ||
kernel-doc-nano-HOWTO.txt | ||
kernel-docs.txt | ||
kernel-parameters.txt | ||
kmemcheck.txt | ||
kmemleak.txt | ||
kobject.txt | ||
kprobes.txt | ||
kref.txt | ||
ldm.txt | ||
local_ops.txt | ||
lockdep-design.txt | ||
lockstat.txt | ||
lockup-watchdogs.txt | ||
logo.gif | ||
logo.txt | ||
magic-number.txt | ||
Makefile | ||
ManagementStyle | ||
md.txt | ||
media-framework.txt | ||
memory-barriers.txt | ||
memory-hotplug.txt | ||
mono.txt | ||
mutex-design.txt | ||
nommu-mmap.txt | ||
numastat.txt | ||
oops-tracing.txt | ||
padata.txt | ||
parport-lowlevel.txt | ||
parport.txt | ||
percpu-rw-semaphore.txt | ||
pi-futex.txt | ||
pinctrl.txt | ||
pnp.txt | ||
preempt-locking.txt | ||
printk-formats.txt | ||
pwm.txt | ||
ramoops.txt | ||
rbtree.txt | ||
remoteproc.txt | ||
rfkill.txt | ||
robust-futex-ABI.txt | ||
robust-futexes.txt | ||
rpmsg.txt | ||
rt-mutex-design.txt | ||
rt-mutex.txt | ||
rtc.txt | ||
SAK.txt | ||
SecurityBugs | ||
serial-console.txt | ||
sgi-ioc4.txt | ||
sgi-visws.txt | ||
SM501.txt | ||
smsc_ece1099.txt | ||
sparse.txt | ||
spinlocks.txt | ||
stable_api_nonsense.txt | ||
stable_kernel_rules.txt | ||
static-keys.txt | ||
SubmitChecklist | ||
SubmittingDrivers | ||
SubmittingPatches | ||
svga.txt | ||
sysfs-rules.txt | ||
sysrq.txt | ||
unaligned-memory-access.txt | ||
unicode.txt | ||
unshare.txt | ||
vfio.txt | ||
VGA-softcursor.txt | ||
vgaarbiter.txt | ||
video-output.txt | ||
vme_api.txt | ||
volatile-considered-harmful.txt | ||
workqueue.txt | ||
xz.txt | ||
zorro.txt |