H. Peter Anvin 8b9b3bf4e7 x86, random: Verify RDRAND functionality and allow it to be disabled ...

commit 49d859d78c upstream.

If the CPU declares that RDRAND is available, go through a guranteed
reseed sequence, and make sure that it is actually working (producing
data.)   If it does not, disable the CPU feature flag.

Allow RDRAND to be disabled on the command line (as opposed to at
compile time) for a user who has special requirements with regards to
random numbers.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2012-10-21 09:17:12 -07:00

..

ABI

backlight: new driver for the ADP8870 backlight devices

2011-06-15 20:03:59 -07:00

accounting

Documentation: update cgroupfs mount point

2011-06-15 21:52:50 -07:00

acpi

ACPI: Split out custom_method functionality into an own driver

2011-05-29 01:50:40 -04:00

aoe

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

arm

Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable

2011-05-25 21:47:48 +01:00

auxdisplay

…

blackfin

Blackfin: document SPI CS limitations with CPHA=0

2010-08-06 12:55:52 -04:00

block

Fix common misspellings

2011-03-31 11:26:23 -03:00

blockdev

cciss: add cciss_tape_cmds module paramter

2011-05-06 08:23:59 -06:00

cdrom

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

cgroups

Documentation: fix cgroup blkio throttle filenames

2011-07-06 13:17:51 -07:00

connector

Documentation/: it's -> its where appropriate

2010-04-23 02:09:52 +02:00

console

doc: fix console doc typo

2010-02-24 13:51:32 +01:00

cpu-freq

[CPUFREQ] Add documentation for sampling_down_factor

2011-03-16 17:54:31 -04:00

cpuidle

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cris

…

crypto

…

development-process

Documentation: Update stable address

2012-01-12 11:34:54 -08:00

device-mapper

Fix common misspellings

2011-03-31 11:26:23 -03:00

devicetree

Merge branches 'devel', 'devel-stable' and 'fixes' into for-linus

2011-05-27 22:59:57 +01:00

DocBook

Merge git://git.infradead.org/mtd-2.6

2011-05-27 20:06:53 -07:00

driver-model

driver core: remove the driver-model structures from the documentation

2011-05-06 18:01:05 -07:00

dvb

Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6

2011-04-07 11:14:49 -07:00

early-userspace

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fault-injection

lkdtm: add debugfs access and loosen KPROBE ties

2010-03-06 11:26:32 -08:00

fb

Fix common misspellings

2011-03-31 11:26:23 -03:00

filesystems

nilfs2: remove resize from unsupported features list

2011-07-13 16:08:59 +09:00

firmware_class

firmware: Update hotplug script

2010-08-05 13:53:34 -07:00

frv

…

hid

HID: Move hiddev.txt to the new Documentation/hid directory

2011-03-22 11:43:51 +01:00

hwmon

hwmon: (jc42) Add support for AT30TS00, TS3000GB2, TSE2002GB2, and MCP9804

2012-03-12 10:33:00 -07:00

i2c

i2c-i801: SMBus patch for Intel Panther Point DeviceIDs

2011-05-24 20:58:49 +02:00

i2o

Fix common misspellings

2011-03-31 11:26:23 -03:00

ia64

Fix common misspellings

2011-03-31 11:26:23 -03:00

ide

…

infiniband

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

input

Input: elantech - describe further the protocol

2011-05-16 22:48:24 -07:00

ioctl

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

2011-05-25 16:55:55 -07:00

isdn

Fix common misspellings

2011-03-31 11:26:23 -03:00

ja_JP

HOWTO: sync up Documentaion/ja_JP/HOWTO

2011-04-19 16:53:45 -07:00

kbuild

Merge branch 'kconfig-for-40' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6

2011-05-25 16:54:01 -07:00

kdump

kdump: update kexec-tools URL and Vivek's email

2010-11-25 14:36:38 +01:00

ko_KR

Docs/Kconfig: Update: osdl.org -> linuxfoundation.org

2010-11-15 23:50:13 +01:00

laptops

thinkpad-acpi: handle HKEY 0x4010, 0x4011 events

2011-07-07 10:39:05 -04:00

leds

Documentation: consolidate leds files to leds/ subdir

2011-04-04 17:51:47 -07:00

m68k

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make

kbuild: introduce HDR_ARCH_LIST for headers_install_all

2010-12-14 22:16:19 +01:00

mips

Fix common misspellings

2011-03-31 11:26:23 -03:00

misc-devices

Fix common misspellings

2011-03-31 11:26:23 -03:00

mmc

mmc: MMC boot partitions support.

2011-05-24 21:01:21 -04:00

mn10300

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mtd

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

namespaces

…

netlabel

Documentation/: it's -> its where appropriate

2010-04-23 02:09:52 +02:00

networking

tcp: change tcp_adv_win_scale and tcp_rmem[2]

2012-05-21 09:40:00 -07:00

nfc

NFC: Driver for NXP Semiconductors PN544 NFC chip.

2011-01-13 08:03:19 -08:00

parisc

…

PCI

Fix common misspellings

2011-03-31 11:26:23 -03:00

pcmcia

pcmcia: use autoconfiguration feature for ioports and iomem

2010-09-29 17:20:24 +02:00

power

PM / Runtime: Automatically retry failed autosuspends

2011-11-11 09:36:57 -08:00

powerpc

Fix common misspellings

2011-03-31 11:26:23 -03:00

pps

pps: add parallel port PPS signal generator

2011-01-13 08:03:21 -08:00

prctl

…

pti

Kernel documentation for the PTI feature.

2011-05-13 16:31:00 -07:00

ptp

ptp: Added a brand new class driver for ptp clocks.

2011-05-23 13:01:00 -07:00

rapidio

rapidio: add RapidIO documentation

2011-03-23 19:46:41 -07:00

RCU

rcu: Decrease memory-barrier usage based on semi-formal proof

2011-05-26 09:42:23 -07:00

s390

Documentation: fix minor typos/spelling

2011-04-04 17:51:47 -07:00

scheduler

Documentation: update cgroupfs mount point

2011-06-15 21:52:50 -07:00

scsi

[SCSI] megaraid_sas: Version and Changelog update

2011-05-24 12:36:06 -04:00

security

Create Documentation/security/,

2011-05-19 15:59:38 -07:00

serial

Fix common misspellings

2011-03-31 11:26:23 -03:00

sh

sh: clkfwk: Kill off unused clk_set_rate_ex().

2010-11-15 18:25:12 +09:00

sound

Merge branch 'topic/hda' into for-linus

2011-05-22 10:01:35 +02:00

sparc

…

spi

Fix common misspellings

2011-03-31 11:26:23 -03:00

sysctl

coredump: add support for exe_file in core name

2011-05-26 17:12:36 -07:00

target

[SCSI] tcm_mod_builder.py: Fix generated *_drop_nodeacl() handler

2011-03-23 11:36:45 -05:00

telephony

Fix common misspellings

2011-03-31 11:26:23 -03:00

thermal

thermal: Add event notification to thermal framework

2011-01-12 00:08:35 -05:00

timers

doc: timers-howto: fix a typo ("unsgined")

2011-05-17 10:52:02 +02:00

trace

mm: change isolate mode from #define to bitwise type

2012-08-01 12:27:16 -07:00

usb

USB: update documentation for usbmon

2012-01-12 11:35:06 -08:00

video4linux

[media] uvcvideo: Add driver documentation

2011-05-20 09:30:36 -03:00

virtual

lguest: allow booting guest with CONFIG_RELOCATABLE=y

2011-08-17 10:55:53 -07:00

vm

Documentation: update cgroupfs mount point

2011-06-15 21:52:50 -07:00

w1

Fix common misspellings

2011-03-31 11:26:23 -03:00

watchdog

Fix common misspellings

2011-03-31 11:26:23 -03:00

wimax

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x86

x86, doc only: Correct real-mode kernel header offset for init_size

2011-07-12 20:39:11 -07:00

zh_CN

Translated Documentation/email-clients.txt

2011-05-06 17:59:20 -07:00

.gitignore

add random binaries to .gitignore

2010-04-08 11:34:34 +02:00

00-INDEX

Merge branch 'docs-security' into docs-move

2011-05-20 09:10:04 -07:00

applying-patches.txt

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atomic_ops.txt

Documentation/atomic_ops.txt: avoid volatile in sample code

2011-05-26 17:12:34 -07:00

bad_memory.txt

…

basic_profiling.txt

…

binfmt_misc.txt

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

braille-console.txt

…

bt8xxgpio.txt

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btmrvl.txt

…

BUG-HUNTING

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bus-virt-phys-mapping.txt

documentation: fix almost duplicate filenames (IO/io-mapping.txt)

2010-07-20 17:49:30 +00:00

cachetlb.txt

mm: convert mm->cpu_vm_cpumask into cpumask_var_t

2011-05-25 08:39:21 -07:00

Changes

Documentation/Changes: remove some really obsolete text

2011-07-11 16:48:38 -07:00

circular-buffers.txt

Document Linux's circular buffering capabilities

2010-03-24 16:31:22 -07:00

coccinelle.txt

scripts/coccinelle: update for compatability with Coccinelle 0.2.4

2010-12-03 12:27:01 +01:00

CodingStyle

Documentation: update CodingStyle memory allocators

2011-07-06 13:17:51 -07:00

cpu-hotplug.txt

Fix common misspellings

2011-03-31 11:26:23 -03:00

cpu-load.txt

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cputopology.txt

topology/sysfs: Provide book id and siblings attributes

2010-09-09 20:41:25 +02:00

dcdbas.txt

…

debugging-modules.txt

…

debugging-via-ohci1394.txt

…

dell_rbu.txt

Fix common misspellings

2011-03-31 11:26:23 -03:00

devices.txt

Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

2010-10-28 09:35:11 -07:00

DMA-API-HOWTO.txt

Documentation: DMA-API-HOWTO.txt: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN

2010-08-14 11:56:46 -07:00

DMA-API.txt

dma-mapping: remove dma_is_consistent API

2010-08-11 08:59:21 -07:00

DMA-attributes.txt

…

DMA-ISA-LPC.txt

…

dmaengine.txt

dmaengine: Add API documentation for slave dma usage

2011-05-25 14:49:20 -07:00

dontdiff

Documentation: update dontdiff file

2011-05-23 15:14:11 -07:00

dynamic-debug-howto.txt

Merge branch 'docs-next' of git://git.lwn.net/linux-2.6

2011-03-27 19:46:59 -07:00

edac.txt

Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6

2011-04-07 11:14:49 -07:00

eisa.txt

Fix common misspellings

2011-03-31 11:26:23 -03:00

email-clients.txt

Documentation/email-clients.txt: update Thunderbird docs with wordwrap plugin

2011-01-13 08:03:15 -08:00

feature-removal-schedule.txt

Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

2011-07-11 16:43:27 -07:00

flexible-arrays.txt

flex_array: flex_array_prealloc takes a number of elements, not an end

2011-04-28 16:12:47 -04:00

futex-requeue-pi.txt

…

gcov.txt

…

gpio.txt

Revert "gpiolib: annotate gpio-intialization with __must_check"

2011-01-13 17:26:46 -08:00

highuid.txt

…

HOWTO

docs: update HOWTO for 2.6.x -> 3.x versioning

2012-06-01 15:12:55 +08:00

hw_random.txt

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hwspinlock.txt

hwspinlock/core: use a mutex to protect the radix tree

2011-11-11 09:36:31 -08:00

init.txt

init/main.c: improve usability in case of init binary failure

2010-03-06 11:26:29 -08:00

initrd.txt

…

intel_txt.txt

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

Intel-IOMMU.txt

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io_ordering.txt

…

io-mapping.txt

…

iostats.txt

Documentation/iostats.txt: bit-size reference etc.

2011-03-23 20:44:18 +01:00

IPMI.txt

IPMI: Add the document description of ipmi_get_smi_info

2010-12-14 00:22:00 -05:00

IRQ-affinity.txt

bitmap, irq: add smp_affinity_list interface to /proc/irq

2011-05-25 08:39:45 -07:00

IRQ.txt

…

irqflags-tracing.txt

Fix common misspellings

2011-03-31 11:26:23 -03:00

isapnp.txt

…

java.txt

…

kernel-doc-nano-HOWTO.txt

docbook: warn on unused doc entries

2010-09-11 16:49:21 -07:00

kernel-docs.txt

Documentation: update kernel-docs.txt

2011-01-06 09:59:38 -08:00

kernel-parameters.txt

x86, random: Verify RDRAND functionality and allow it to be disabled

2012-10-21 09:17:12 -07:00

kmemcheck.txt

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kmemleak.txt

Documentation: update kmemleak supported archs

2011-06-15 21:52:50 -07:00

kobject.txt

kobject: documentation: Update to refer to kset-example.c.

2010-03-19 07:12:20 -07:00

kprobes.txt

tree-wide: fix comment/printk typos

2010-11-01 15:38:34 -04:00

kref.txt

kref: Fix typo in kref documentation

2011-03-07 13:20:05 -08:00

ldm.txt

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

local_ops.txt

…

lockdep-design.txt

…

lockstat.txt

Documentation: Add statistics about nested locks

2011-05-28 17:03:29 +02:00

logo.gif

…

logo.txt

…

magic-number.txt

take coda-private headers out of include/linux

2011-01-12 20:02:48 -05:00

Makefile

[media] Remove the old V4L1 v4lgrab.c file

2010-12-29 08:17:12 -02:00

ManagementStyle

…

mca.txt

…

md.txt

md:Documentation/md.txt - fix typo

2011-06-09 11:43:04 +10:00

media-framework.txt

Fix common misspellings

2011-03-31 11:26:23 -03:00

memory-barriers.txt

smp: Document transitivity for memory barriers.

2011-03-04 08:05:49 -08:00

memory-hotplug.txt

memory hotplug: Allow memory blocks to span multiple memory sections

2011-02-03 16:08:57 -08:00

memory.txt

…

mono.txt

…

mutex-design.txt

mutex: Fix annotations to include it in kernel-locking docbook

2010-09-03 08:19:51 +02:00

nmi_watchdog.txt

…

nommu-mmap.txt

…

numastat.txt

…

oops-tracing.txt

panic: Add taint flag TAINT_FIRMWARE_WORKAROUND ('I')

2010-05-19 08:37:43 +01:00

padata.txt

Documentation/padata.txt: fix typos etc.

2010-08-11 08:59:18 -07:00

parport-lowlevel.txt

…

parport.txt

…

pi-futex.txt

…

pnp.txt

doc: capitalization and other minor fixes in pnp doc

2010-02-05 12:22:44 +01:00

preempt-locking.txt

…

printk-formats.txt

Documentation: update printk-formats.txt

2011-06-15 21:52:50 -07:00

prio_tree.txt

…

rbtree.txt

Documentation: remove anticipatory scheduler info

2010-11-11 12:09:59 +01:00

rfkill.txt

Document the rfkill sysfs ABI

2010-03-10 17:09:33 -05:00

robust-futex-ABI.txt

…

robust-futexes.txt

…

rt-mutex-design.txt

variable name fix to Documentation/rt-mutex-design.txt

2010-06-05 17:39:09 +02:00

rt-mutex.txt

…

rtc.txt

RTC: Fix up rtc.txt documentation to reflect changes to generic rtc layer

2011-03-09 11:25:10 -08:00

SAK.txt

…

SecurityBugs

Fix common misspellings

2011-03-31 11:26:23 -03:00

serial-console.txt

…

sgi-ioc4.txt

…

sgi-visws.txt

…

SM501.txt

…

sparse.txt

update email address

2010-07-19 10:56:54 +02:00

spinlocks.txt

Documentation/spinlocks.txt: Remove reference to sti()/cli()

2011-07-11 12:45:04 -07:00

stable_api_nonsense.txt

doc: stable_api_nonsense.txt: fix paragraph to make more sense.

2011-03-30 12:02:05 +02:00

stable_kernel_rules.txt

stable: update references to older 2.6 versions for 3.x

2012-08-09 08:27:36 -07:00

SubmitChecklist

Documentation: update SubmitChecklist for O=objdir and kconfig testing

2010-05-24 07:31:20 -07:00

SubmittingDrivers

Fix common misspellings

2011-03-31 11:26:23 -03:00

SubmittingPatches

Documentation: update GregKH links

2011-05-23 15:14:11 -07:00

svga.txt

…

sysfs-rules.txt

Fix typos in comments

2010-03-16 11:47:56 +01:00

sysrq.txt

documentation: update sysrq.txt magic sysrq keys

2010-10-26 17:32:41 -07:00

unaligned-memory-access.txt

…

unicode.txt

…

unshare.txt

…

VGA-softcursor.txt

…

vgaarbiter.txt

Documentation: fix vgaarbiter.txt typos etc.

2011-05-23 15:14:11 -07:00

video-output.txt

…

volatile-considered-harmful.txt

Documentation/volatile-considered-harmful.txt: correct cpu_relax() documentation

2010-03-24 16:31:20 -07:00

workqueue.txt

workqueue: Document debugging tricks

2011-03-31 13:40:42 +02:00

xz.txt

decompressors: add XZ decompressor module

2011-01-13 08:03:24 -08:00

zorro.txt

…