Jan Kiszka 4d25a066b6 KVM: Don't automatically expose the TSC deadline timer in cpuid ... Unlike all of the other cpuid bits, the TSC deadline timer bit is set unconditionally, regardless of what userspace wants. This is broken in several ways: - if userspace doesn't use KVM_CREATE_IRQCHIP, and doesn't emulate the TSC deadline timer feature, a guest that uses the feature will break - live migration to older host kernels that don't support the TSC deadline timer will cause the feature to be pulled from under the guest's feet; breaking it - guests that are broken wrt the feature will fail. Fix by not enabling the feature automatically; instead report it to userspace. Because the feature depends on KVM_CREATE_IRQCHIP, which we cannot guarantee will be called, we expose it via a KVM_CAP_TSC_DEADLINE_TIMER and not KVM_GET_SUPPORTED_CPUID. Fixes the Illumos guest kernel, which uses the TSC deadline timer feature. [avi: add the KVM_CAP + documentation] Reported-by: Alexey Zaytsev <alexey.zaytsev@gmail.com> Tested-by: Alexey Zaytsev <alexey.zaytsev@gmail.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com>		2011-12-26 13:27:44 +02:00
..
ABI	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2011-12-13 14:59:42 -08:00
accounting
acpi
aoe
arm
auxdisplay
blackfin
block	Documentation: drop as block elevator reference in switching-sched.txt	2011-11-04 12:01:48 -07:00
blockdev	cciss: auto engage SCSI mid layer at driver load time	2011-11-16 09:21:49 +01:00
cdrom
cgroups	Documentation: Fix typo in freezer-subsystem.txt	2011-11-07 23:02:25 +01:00
connector
console
cpu-freq
cpuidle
cris
crypto
development-process
device-mapper	dm log userspace: fix comment hyphens	2011-10-31 20:21:22 +00:00
devicetree	of: Add Silicon Image vendor prefix	2011-11-29 08:24:20 -06:00
DocBook	Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core	2011-11-21 20:36:26 -08:00
driver-model
dvb	[media] update az6027 firmware URL	2011-10-14 10:29:45 -03:00
early-userspace
fault-injection	fault-injection: update documentation with the mmc module param	2011-10-26 16:32:13 -04:00
fb
filesystems	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2011-12-01 08:28:53 -08:00
firmware_class
frv
hid
hwmon	hwmon: (w83627ehf) Add support for the W83627UHG	2011-11-04 12:00:48 +01:00
i2c	i2c: Fix device name for 10-bit slave address	2011-11-23 11:33:07 +01:00
i2o
ia64
ide
infiniband
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2011-10-27 08:44:20 +02:00
ioctl
isdn
ja_JP
kbuild
kdump
ko_KR
laptops	Documentation: thinkpad-acpi grammo fixes	2011-11-04 12:01:47 -07:00
leds	Documentation: fix leds-class.txt duplicated word	2011-11-04 12:01:48 -07:00
m68k
make
mips
misc-devices
mmc
mn10300
mtd
namespaces
netlabel
networking	ipv4:correct description for tcp_max_syn_backlog	2011-12-06 13:02:28 -05:00
nfc
parisc
PCI
pcmcia
power	PM / Sleep: Update documentation related to system wakeup	2011-11-28 22:14:45 +01:00
powerpc
pps
prctl
pti
ptp
rapidio	RapidIO: documentation update	2011-11-02 16:07:02 -07:00
RCU
s390
scheduler
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2011-10-28 16:44:18 -07:00
security
serial	RS485: fix inconsistencies in the meaning of some variables	2011-11-15 12:13:44 -08:00
sh
sound	Merge branch 'fix/asoc' into for-linus	2011-12-06 13:22:28 +01:00
sparc
spi
sysctl	kernel/sysctl.c: add cap_last_cap to /proc/sys/kernel	2011-10-31 17:30:53 -07:00
target
telephony
thermal
timers
trace	mm: change isolate mode from #define to bitwise type	2011-10-31 17:30:44 -07:00
usb	USB: linux-cdc-acm.inf: add support for the acm_ms gadget	2011-11-29 09:59:29 +09:00
vDSO
video4linux
virtual	KVM: Don't automatically expose the TSC deadline timer in cpuid	2011-12-26 13:27:44 +02:00
vm	Merge branches 'slab/next' and 'slub/partial' into slab/for-linus	2011-10-26 18:09:12 +03:00
w1
watchdog	Documentation: watchdog: add guide how to convert drivers to new framework	2011-11-05 21:25:16 +01:00
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
coccinelle.txt
CodingStyle	Documentation: update CodingStyle use of braces	2011-11-04 12:01:47 -07:00
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt
DMA-API-HOWTO.txt
DMA-API.txt	include/linux/dma-mapping.h: add dma_zalloc_coherent()	2011-11-02 16:07:02 -07:00
DMA-attributes.txt
DMA-ISA-LPC.txt
dmaengine.txt
dontdiff
dynamic-debug-howto.txt
edac.txt
eisa.txt
email-clients.txt
feature-removal-schedule.txt	sysctl: make CONFIG_SYSCTL_SYSCALL default to n	2011-11-02 16:07:02 -07:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gpio.txt
highuid.txt
HOWTO
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
intel_txt.txt
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt	Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu	2011-12-09 08:08:14 -08:00
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt
kref.txt
ldm.txt
local_ops.txt
lockdep-design.txt
lockstat.txt
logo.gif
logo.txt
magic-number.txt
Makefile
ManagementStyle
mca.txt
md.txt
media-framework.txt
memory-barriers.txt
memory-hotplug.txt
memory.txt
mono.txt
mutex-design.txt
nmi_watchdog.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt	module,bug: Add TAINT_OOT_MODULE flag for modules not built in-tree	2011-11-07 07:54:42 +10:30
padata.txt
parport-lowlevel.txt
parport.txt
pi-futex.txt
pinctrl.txt
pnp.txt
preempt-locking.txt
printk-formats.txt
prio_tree.txt
ramoops.txt
rbtree.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt	Update email address for stable patch submission	2011-10-18 13:58:59 -07:00
SubmitChecklist
SubmittingDrivers
SubmittingPatches
svga.txt
sysfs-rules.txt
sysrq.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
volatile-considered-harmful.txt
workqueue.txt
xz.txt
zorro.txt