Roman Kagan d3457c877b kvm: x86: hyperv: make VP_INDEX managed by userspace ... Hyper-V identifies vCPUs by Virtual Processor Index, which can be queried via HV_X64_MSR_VP_INDEX msr. It is defined by the spec as a sequential number which can't exceed the maximum number of vCPUs per VM. APIC ids can be sparse and thus aren't a valid replacement for VP indices. Current KVM uses its internal vcpu index as VP_INDEX. However, to make it predictable and persistent across VM migrations, the userspace has to control the value of VP_INDEX. This patch achieves that, by storing vp_index explicitly on vcpu, and allowing HV_X64_MSR_VP_INDEX to be set from the host side. For compatibility it's initialized to KVM vcpu index. Also a few variables are renamed to make clear distinction betweed this Hyper-V vp_index and KVM vcpu_id (== APIC id). Besides, a new capability, KVM_CAP_HYPERV_VP_INDEX, is added to allow the userspace to skip attempting msr writes where unsupported, to avoid spamming error logs. Signed-off-by: Roman Kagan <rkagan@virtuozzo.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>		2017-07-14 16:28:18 +02:00
..
ABI	DeviceTree for 4.13:	2017-07-07 10:37:54 -07:00
accounting
acpi	This is the bulk of GPIO changes for the v4.13 series:	2017-07-07 12:40:27 -07:00
admin-guide	Merge branch 'akpm' (patches from Andrew)	2017-07-06 22:27:08 -07:00
aoe
arm	ARM: at91: Documentation: add armv7m families	2017-06-02 10:11:09 +02:00
arm64	arm64: Add workaround for Cavium Thunder erratum 30115	2017-06-15 09:45:04 +01:00
auxdisplay
backlight
blackfin
block	block: remove bio_clone() and all references.	2017-06-18 12:40:59 -06:00
blockdev
bus-devices
cdrom
cgroup-v1
cma
connector
console
core-api	There has been a fair amount of activity in the docs tree this time	2017-07-03 21:13:25 -07:00
cpu-freq
cpuidle
cris
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2017-07-05 12:22:23 -07:00
dev-tools	linux-kselftest-4.13-rc1-update	2017-07-07 14:04:47 -07:00
device-mapper	dm zoned: drive-managed zoned block device target	2017-06-19 11:05:20 -04:00
devicetree	main drm pull for v4.13	2017-07-09 18:48:37 -07:00
dmaengine
doc-guide
driver-api	This is the big bulk of pin control changes for the v4.13 series:	2017-07-06 11:38:59 -07:00
driver-model	pci-v4.13-changes	2017-07-08 15:51:57 -07:00
early-userspace
EDID
extcon
fault-injection
fb
features
filesystems	Writeback error handling fixes (pile #2)	2017-07-07 19:38:17 -07:00
firmware_class
fmc
fpga
frv
gpio
gpu	main drm pull for v4.13	2017-07-09 18:48:37 -07:00
hid
hwmon	hwmon: (pmbus) move header file out of I2C realm	2017-06-11 17:08:19 -07:00
i2c
ia64
ide
iio
infiniband
input
ioctl	scsi: cxlflash: Introduce host ioctl support	2017-06-26 15:01:11 -04:00
isdn
kbuild	Kbuild thin archives updates for v4.13	2017-07-07 15:11:12 -07:00
kdump
kernel-hacking	There has been a fair amount of activity in the docs tree this time	2017-07-03 21:13:25 -07:00
laptops
leds
lightnvm
livepatch
locking
m68k
md
media	media updates for v4.13-rc1	2017-07-06 11:15:19 -07:00
memory-devices
metag
mic
mips
misc-devices
mmc
mn10300
mtd
namespaces
netlabel
networking	doc: SKB_GSO_[IPIP|SIT] have been replaced	2017-07-08 11:25:56 +01:00
nfc
nios2
nvdimm
nvmem
parisc
PCI
pcmcia
perf
phy
platform
power	power supply and reset changes for the v4.13 series	2017-07-04 14:25:14 -07:00
powerpc	powerpc updates for 4.13	2017-07-07 13:55:45 -07:00
pps
process	Kbuild thin archives updates for v4.13	2017-07-07 15:11:12 -07:00
pti
ptp
rapidio
RCU	rcu: Remove debugfs tracing	2017-06-08 18:52:43 -07:00
s390
scheduler	sched/deadline: Add documentation about GRUB reclaiming	2017-06-08 10:31:56 +02:00
scsi
security
serial	tty: n_gsm: do not send/receive in ldisc close path	2017-06-03 18:48:52 +09:00
sh
sound	sound updates for 4.13-rc1	2017-07-06 10:56:51 -07:00
sparc
sphinx	Docs: clean up some DocBook loose ends	2017-06-23 14:17:38 -06:00
sphinx-static
spi
sysctl
target
thermal
timers	rcu: Eliminate NOCBs CPU-state Kconfig options	2017-06-08 18:52:43 -07:00
trace	Char/Misc patches for 4.13-rc1	2017-07-03 20:55:59 -07:00
translations	doc/kokr/howto: Only send regression fixes after -rc1	2017-06-22 10:25:22 -06:00
usb	usb: gadget: add f_uac1 variant based on a new u_audio api	2017-06-19 09:22:47 +03:00
userspace-api
virtual	kvm: x86: hyperv: make VP_INDEX managed by userspace	2017-07-14 16:28:18 +02:00
vm	ksm: introduce ksm_max_page_sharing per page deduplication limit	2017-07-06 16:24:31 -07:00
w1
watchdog
wimax
x86	x86/mce: Update bootlog description to reflect behavior on AMD	2017-06-14 07:32:10 +02:00
xtensa	of: update ePAPR references to point to Devicetree Specification	2017-06-22 11:22:06 -05:00
.gitignore
00-INDEX	linux-kselftest-4.13-rc1-update	2017-07-07 14:04:47 -07:00
bcache.txt
bt8xxgpio.txt
btmrvl.txt
bus-virt-phys-mapping.txt
cachetlb.txt
cgroup-v2.txt	mm/oom_kill: count global and memory cgroup oom kills	2017-07-06 16:24:35 -07:00
Changes
circular-buffers.txt
clk.txt
CodingStyle
conf.py	Docs: Fix breakage with Sphinx 1.5 and upper	2017-06-23 13:45:37 -06:00
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
digsig.txt
DMA-API-HOWTO.txt	dma-mapping: remove DMA_ERROR_CODE	2017-06-28 06:54:37 -07:00
DMA-API.txt	Documentation: DMA API: fix a typo in a function name	2017-06-05 15:57:02 -06:00
DMA-attributes.txt
DMA-ISA-LPC.txt
docutils.conf
dontdiff	GCC plugin updates:	2017-07-05 11:46:59 -07:00
efi-stub.txt
eisa.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcc-plugins.txt
highuid.txt
hw_random.txt
hwspinlock.txt
index.rst	Make the main documentation title less Geocities	2017-06-23 14:02:27 -06:00
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
isa.txt
isapnp.txt
kernel-doc-nano-HOWTO.txt
kernel-per-CPU-kthreads.txt	rcu: Eliminate NOCBs CPU-state Kconfig options	2017-06-08 18:52:43 -07:00
kobject.txt
kprobes.txt
kref.txt
ldm.txt
lockup-watchdogs.txt
logo.gif
logo.txt
lsm.txt
lzo.txt
mailbox.txt
Makefile
memory-barriers.txt	There has been a fair amount of activity in the docs tree this time	2017-07-03 21:13:25 -07:00
memory-hotplug.txt
men-chameleon-bus.txt
nommu-mmap.txt
ntb.txt
numastat.txt
padata.txt
parport-lowlevel.txt
percpu-rw-semaphore.txt
phy.txt
pi-futex.txt
pnp.txt
preempt-locking.txt
printk-formats.txt	vsprintf: Add %p extension "%pOF" for device tree	2017-06-27 12:36:40 -05:00
pwm.txt
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt
SAK.txt
sgi-ioc4.txt
siphash.txt
SM501.txt
smsc_ece1099.txt
static-keys.txt
SubmittingPatches
svga.txt
switchtec.txt
sync_file.txt
tee.txt
this_cpu_ops.txt
unaligned-memory-access.txt
vfio-mediated-device.txt
vfio.txt
video-output.txt
xillybus.txt
xz.txt
zorro.txt