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
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
PCI	doc: fix broken references	2011-09-27 18:08:04 +02:00
RCU	rcu: Document interpretation of RCU-lockdep splats	2011-09-28 21:38:28 -07:00
accounting	Documentation: update cgroupfs mount point	2011-06-15 21:52:50 -07:00
acpi	ACPI, APEI, EINJ Param support is disabled by default	2011-08-03 11:15:59 -04:00
aoe	…
arm	Merge branch 'next/deletion' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc	2011-07-25 12:43:28 -07:00
auxdisplay	…
blackfin	doc: fix broken references	2011-09-27 18:08:04 +02:00
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	doc: fix broken references	2011-09-27 18:08:04 +02:00
cgroups	Documentation: Fix typo in freezer-subsystem.txt	2011-11-07 23:02:25 +01:00
connector	…
console	…
cpu-freq	Fix documentation and comment typo 'no_hz'	2011-08-08 18:55:59 +02:00
cpuidle	…
cris	…
crypto	…
development-process	doc: fix broken references	2011-09-27 18:08:04 +02:00
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
driver-model	docs/driver-model: Update device class docs	2011-08-24 16:01:24 -07:00
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	udlfb: Enable fbcon access to framebuffer by default	2011-08-24 10:12:38 +00:00
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	doc: fix broken references	2011-09-27 18:08:04 +02:00
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	ioctl: register LTTng ioctl	2011-09-12 11:50:56 -07:00
isdn	…
ja_JP	Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6	2011-07-25 23:06:24 -07:00
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	Documentation: add pointer to name_to_dev_t for root= values	2011-08-03 14:25:21 -10:00
make	…
mips	…
misc-devices	…
mmc	mmc: documentation of mmc non-blocking request usage and design.	2011-07-21 10:34:52 -04:00
mn10300	…
mtd	…
namespaces	…
netlabel	…
networking	ipv4:correct description for tcp_max_syn_backlog	2011-12-06 13:02:28 -05:00
nfc	…
parisc	…
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
s390	[S390] remove tape block docu	2011-07-24 10:48:22 +02:00
scheduler	sched: Add documentation for bandwidth control	2011-08-14 12:03:58 +02:00
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	doc: fix broken references	2011-09-27 18:08:04 +02:00
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	doc: fix broken references	2011-09-27 18:08:04 +02:00
sysctl	kernel/sysctl.c: add cap_last_cap to /proc/sys/kernel	2011-10-31 17:30:53 -07:00
target	…
telephony	…
thermal	…
timers	doc: fix broken references	2011-09-27 18:08:04 +02:00
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	Document the vDSO and add a reference parser	2011-07-14 17:57:09 -07:00
video4linux	[media] gspca - zc3xx: New webcam 03f0:1b07 HP Premium Starter Cam	2011-09-23 23:31:12 -03:00
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	x86-64, doc: Remove int 0xcc from entry_64.S documentation	2011-08-16 08:04:08 -07:00
zh_CN	remove the messy code file Documentation/zh_CN/SubmitChecklist	2011-09-26 16:18:41 -07:00
.gitignore	…
00-INDEX	Documentation: add Ramoops usage description	2011-08-13 18:34:03 -07:00
BUG-HUNTING	…
Changes	Documentation/Changes: remove some really obsolete text	2011-07-11 16:48:38 -07:00
CodingStyle	Documentation: update CodingStyle use of braces	2011-11-04 12:01:47 -07:00
DMA-API-HOWTO.txt	Documentation/DMA-API-HOWTO.txt: fix misleading example	2011-07-26 16:49:45 -07:00
DMA-API.txt	include/linux/dma-mapping.h: add dma_zalloc_coherent()	2011-11-02 16:07:02 -07:00
DMA-ISA-LPC.txt	…
DMA-attributes.txt	…
HOWTO	…
IPMI.txt	…
IRQ-affinity.txt	…
IRQ.txt	…
Intel-IOMMU.txt	…
Makefile	…
ManagementStyle	…
SAK.txt	…
SM501.txt	…
SecurityBugs	…
SubmitChecklist	Documentation/SubmitChecklist: add RCU debug config options	2011-07-25 20:57:17 -07:00
SubmittingDrivers	Documentation: SubmittingDrivers: fix Linus's git tree URL	2011-08-13 18:34:03 -07:00
SubmittingPatches	Documentation: fix spelling error in SubmittingPatches	2011-08-13 18:34:02 -07:00
VGA-softcursor.txt	…
applying-patches.txt	…
atomic_ops.txt	…
bad_memory.txt	…
basic_profiling.txt	…
binfmt_misc.txt	…
braille-console.txt	…
bt8xxgpio.txt	…
btmrvl.txt	…
bus-virt-phys-mapping.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
cachetlb.txt	…
circular-buffers.txt	…
coccinelle.txt	…
cpu-hotplug.txt	…
cpu-load.txt	…
cputopology.txt	…
dcdbas.txt	…
debugging-modules.txt	…
debugging-via-ohci1394.txt	…
dell_rbu.txt	…
devices.txt	…
dmaengine.txt	Improve slave/cyclic DMA engine documentation	2011-07-27 20:33:48 +05:30
dontdiff	…
dynamic-debug-howto.txt	…
edac.txt	…
eisa.txt	…
email-clients.txt	Documentation: email-clients: Add better Thunderbird information	2011-08-13 18:34:03 -07:00
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	…
hw_random.txt	…
hwspinlock.txt	hwspinlock/core: register a bank of hwspinlocks in a single API call	2011-09-21 19:45:34 +03:00
init.txt	…
initrd.txt	…
intel_txt.txt	…
io-mapping.txt	…
io_ordering.txt	…
iostats.txt	…
irqflags-tracing.txt	…
isapnp.txt	…
java.txt	…
kernel-doc-nano-HOWTO.txt	…
kernel-docs.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
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	Documentation: update kmemleak supported archs	2011-06-15 21:52:50 -07:00
kobject.txt	…
kprobes.txt	…
kref.txt	…
ldm.txt	…
local_ops.txt	…
lockdep-design.txt	…
lockstat.txt	…
logo.gif	…
logo.txt	…
magic-number.txt	…
mca.txt	…
md.txt	md: update documentation for md/rdev/state sysfs interface	2011-07-28 11:31:48 +10:00
media-framework.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
memory-barriers.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
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	drivers: create a pin control subsystem	2011-10-13 12:49:17 +02:00
pnp.txt	…
preempt-locking.txt	…
printk-formats.txt	Documentation: update printk-formats.txt	2011-06-15 21:52:50 -07:00
prio_tree.txt	…
ramoops.txt	Documentation: add Ramoops usage description	2011-08-13 18:34:03 -07:00
rbtree.txt	Documentation: Update augmented rbtree documentation	2011-07-24 10:03:05 -07:00
rfkill.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
robust-futex-ABI.txt	…
robust-futexes.txt	…
rt-mutex-design.txt	…
rt-mutex.txt	…
rtc.txt	…
serial-console.txt	…
sgi-ioc4.txt	…
sgi-visws.txt	…
sparse.txt	…
spinlocks.txt	Documentation/spinlocks.txt: Remove reference to sti()/cli()	2011-07-11 12:45:04 -07:00
stable_api_nonsense.txt	…
stable_kernel_rules.txt	Update email address for stable patch submission	2011-10-18 13:58:59 -07:00
svga.txt	…
sysfs-rules.txt	…
sysrq.txt	…
unaligned-memory-access.txt	…
unicode.txt	…
unshare.txt	…
vgaarbiter.txt	…
video-output.txt	…
volatile-considered-harmful.txt	…
workqueue.txt	…
xz.txt	…
zorro.txt	…