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Shuo Liu aa3b483ff1 virt: acrn: Introduce irqfd 
irqfd is a mechanism to inject a specific interrupt to a User VM using a
decoupled eventfd mechanism.

Vhost is a kernel-level virtio server which uses eventfd for interrupt
injection. To support vhost on ACRN, irqfd is introduced in HSM.

HSM provides ioctls to associate a virtual Message Signaled Interrupt
(MSI) with an eventfd. The corresponding virtual MSI will be injected
into a User VM once the eventfd got signal.

Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Yu Wang <yu1.wang@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20210207031040.49576-17-shuo.a.liu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-09 10:58:19 +01:00
..
accessibility
speakup: Make dectlk flush timeout configurable
2021-02-04 17:05:48 +01:00
acpi
ACPI: scan: Make acpi_bus_get_device() clear return pointer on error
2021-01-20 19:20:20 +01:00
amba
amba: Make use of bus_type functions
2021-02-02 14:26:02 +01:00
android
Merge branch 'exec-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2020-12-15 19:29:43 -08:00
ata
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atm
atm: idt77252: call pci_disable_device() on error path
2020-12-21 17:34:09 -08:00
auxdisplay
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base
Merge tag 'driver-core-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2021-01-24 11:05:48 -08:00
bcma
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block
block/rnbd-clt: avoid module unload race with close confirmation
2021-01-08 08:19:18 -07:00
bluetooth
Bluetooth: btusb: Add workaround for remote-wakeup issues with Barrot 8041a02 fake CSR controllers
2020-12-07 17:01:54 +02:00
bus
bus: fsl-mc: list more commands as accepted through the ioctl
2021-02-09 10:56:39 +01:00
cdrom
cdrom: Reset sector_size back it is not 2048.
2020-12-12 11:12:25 -07:00
char
Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next
2021-02-05 11:15:43 +01:00
clk
clk: tegra30: Add hda clock default rates to clock driver
2021-01-12 14:43:53 +01:00
clocksource
Merge tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
2020-12-16 00:07:17 -08:00
connector
net/connector: Add const qualifier to cb_id
2020-12-16 11:06:49 -08:00
counter
counter:ti-eqep: remove floor
2021-01-14 20:56:56 +00:00
cpufreq
cpufreq: intel_pstate: remove obsolete functions
2021-01-07 18:22:46 +01:00
cpuidle
Merge tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2020-12-16 16:38:41 -08:00
crypto
crypto: omap-sham - Fix link error without crypto-engine
2021-01-08 15:37:55 +11:00
dax
Merge tag 'libnvdimm-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2020-12-24 12:18:11 -08:00
dca
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devfreq
Merge branches 'pm-devfreq' and 'pm-tools'
2020-12-15 15:27:16 +01:00
dio
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dma
Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next
2021-02-05 11:15:43 +01:00
dma-buf
dma-buf: cma_heap: Fix memory leak in CMA heap
2021-01-10 23:08:21 +05:30
edac
Merge branch 'akpm' (patches from Andrew)
2020-12-15 12:53:37 -08:00
eisa
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extcon
extcon: max77693: Fix modalias string
2020-12-11 17:18:10 +09:00
firewire
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firmware
Merge tag 'efi_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-12-24 12:40:07 -08:00
fpga
Merge tag 'fpga-cleanup-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next
2021-01-12 10:19:14 +01:00
fsi
Merge tag 'hwmon-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
2020-12-15 16:06:14 -08:00
gnss
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gpio
gpio: tegra: Add missing dependencies
2021-01-19 13:37:10 +01:00
gpu
Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next
2021-02-05 11:15:43 +01:00
greybus
greybus: es2: drop short control-transfer checks
2021-01-26 19:20:11 +01:00
hid
HID: logitech-hidpp: Add product ID for MX Ergo in Bluetooth mode
2021-01-14 13:27:35 +01:00
hsi
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hv
x86/hyperv: Fix kexec panic/hang issues
2021-01-05 17:52:04 +00:00
hwmon
hwmon: (amd_energy) fix allocation of hwmon_channel_info config
2021-01-08 07:31:03 -08:00
hwspinlock
hwspinlock: sirf: Remove the redundant 'of_match_ptr'
2020-12-10 13:34:40 -06:00
hwtracing
coresight: etm4x: Fix merge resolution for amba rework
2021-02-05 15:02:48 +01:00
i2c
Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next
2021-02-05 11:15:43 +01:00
i3c
i3c/master/mipi-i3c-hci: quiet maybe-unused variable warning
2020-12-17 10:31:30 +01:00
ide
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2021-01-01 12:58:07 -08:00
idle
intel_idle: add SnowRidge C-state table
2020-12-30 18:25:34 +01:00
iio
iio: sx9310: Fix semtech,avg-pos-strength setting when > 16
2021-01-14 21:01:22 +00:00
infiniband
RDMA/cma: Fix error flow in default_roce_mode_store
2021-01-14 12:53:13 -04:00
input
amba: Make the remove callback return void
2021-02-02 14:25:50 +01:00
interconnect
Merge branch 'icc-sdx55' into icc-next
2021-02-01 14:26:57 +02:00
iommu
iommu/vt-d: Fix duplicate included linux/dma-map-ops.h
2021-01-12 16:56:20 +00:00
ipack
ipack: Handle a driver without remove callback
2021-02-09 09:48:23 +01:00
irqchip
Merge tag 'irqchip-fixes-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
2021-01-12 21:23:55 +01:00
isdn
misdn: dsp: select CONFIG_BITREVERSE
2021-01-05 15:50:36 -08:00
leds
…
lightnvm
lightnvm: fix memory leak when submit fails
2021-01-21 05:45:51 -07:00
macintosh
macintosh/adb-iop: Send correct poll command
2020-12-07 10:48:16 +01:00
mailbox
ARM: 9055/1: mailbox: arm_mhuv2: make remove callback return void
2021-02-04 21:51:51 +00:00
mcb
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md
Merge tag 'block-5.11-2021-01-24' of git://git.kernel.dk/linux-block
2021-01-24 12:24:35 -08:00
media
Merge tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2020-12-16 16:38:41 -08:00
memory
Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next
2021-02-05 11:15:43 +01:00
memstick
memstick: r592: Fix error return in r592_probe()
2020-12-04 12:27:10 +01:00
message
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2020-12-16 13:34:31 -08:00
mfd
mfd: ab8500-debugfs: Remove extraneous seq_putc
2020-12-26 09:19:49 -08:00
misc
misc: fastrpc: fix incorrect usage of dma_map_sgtable
2021-02-09 10:56:39 +01:00
mmc
Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next
2021-02-05 11:15:43 +01:00
most
most: core: Constify static attribute_group structs
2021-01-26 19:24:51 +01:00
mtd
mtd: rawnand: omap: Use BCH private fields in the specific OOB layout
2021-01-20 23:38:00 +01:00
mux
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net
Merge tag 'linux-can-fixes-for-5.11-20210120' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
2021-01-20 09:16:01 -08:00
nfc
mei: bus: change remove callback to return void
2021-02-09 09:30:16 +01:00
ntb
Merge tag 'ntb-5.11' of git://github.com/jonmason/ntb
2020-12-27 09:22:55 -08:00
nubus
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nvdimm
libnvdimm/label: Return -ENXIO for no slot in __blk_label_update
2020-12-16 16:53:00 -08:00
nvme
nvme-pci: fix error unwind in nvme_map_data
2021-01-20 18:56:33 +01:00
nvmem
nvmem: qcom-spmi-sdam: Fix uninitialized pdev pointer
2021-02-05 11:25:52 +01:00
of
nvmem: Add driver to expose reserved memory as nvmem
2021-02-04 17:04:18 +01:00
opp
opp: Call the missing clk_put() on error
2020-12-28 10:56:22 +05:30
oprofile
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parisc
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parport
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pci
Merge tag 'pci-v5.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2020-12-25 20:17:40 -08:00
pcmcia
Merge branch 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux
2020-12-19 12:50:10 -08:00
perf
Revert "arm64: Enable perf events based hard lockup detector"
2021-01-13 15:08:41 +00:00
phy
Merge tag 'phy-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into char-misc-next
2021-02-09 09:32:35 +01:00
pinctrl
pinctrl: qcom: Don't clear pending interrupts when enabling
2021-01-18 16:07:08 +01:00
platform
platform/goldfish: Convert pipe tasklet to threaded irq
2021-01-27 14:57:06 +01:00
pnp
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power
power: supply: Fix a typo in warning message
2020-12-13 01:00:10 +01:00
powercap
Merge branches 'pm-sleep', 'pm-acpi', 'pm-domains' and 'powercap'
2020-12-15 15:26:14 +01:00
pps
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ps3
powerpc/ps3: use dma_mapping_error()
2020-12-15 22:50:12 +11:00
ptp
ptp: ptp_ines: prevent build when HAS_IOMEM is not set
2021-01-06 16:17:23 -08:00
pwm
Merge tag 'pwm/for-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
2020-12-19 11:51:32 -08:00
rapidio
rapidio: remove unused rio_get_asm() and rio_get_device()
2020-12-15 22:46:18 -08:00
ras
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regulator
Merge qcom driver fix into regulator-5.11
2021-01-04 16:23:20 +00:00
remoteproc
Merge tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2020-12-16 16:38:41 -08:00
reset
Merge tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2020-12-16 16:38:41 -08:00
rpmsg
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rtc
amba: Make the remove callback return void
2021-02-02 14:25:50 +01:00
s390
s390/qeth: fix L2 header access in qeth_l3_osa_features_check()
2021-01-07 18:54:06 -08:00
sbus
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scsi
scsi: ibmvfc: Set default timeout to avoid crash during migration
2021-01-14 22:02:59 -05:00
sfi
…
sh
sh/intc: Restore devm_ioremap() alignment
2021-01-06 19:55:29 -05:00
siox
siox: Make remove callback return void
2020-12-10 16:17:15 +01:00
slimbus
slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()
2020-12-10 16:23:56 +01:00
soc
soc: litex: Fix compile warning when device tree is not configured
2021-01-14 09:34:00 +09:00
soundwire
soundwire: bus: clarify dev_err/dbg device references
2021-02-07 17:49:17 +05:30
spi
Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next
2021-02-05 11:15:43 +01:00
spmi
spmi: Add driver shutdown support
2020-12-10 10:45:36 +01:00
ssb
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staging
staging: ION: remove some references to CONFIG_ION
2021-01-06 17:39:38 +01:00
target
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2021-01-23 11:35:02 -08:00
tc
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tee
Merge tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2020-12-16 16:38:41 -08:00
thermal
Merge tag 'thermal-v5.11-2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
2020-12-18 12:19:37 -08:00
thunderbolt
thunderbolt: Drop duplicated 0x prefix from format string
2021-01-07 15:14:44 +03:00
tty
Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next
2021-02-05 11:15:43 +01:00
uio
uio: uio_hv_generic: use devm_kzalloc() for private data alloc
2020-12-09 19:59:00 +01:00
usb
usb: bdc: Make bdc pci driver depend on BROKEN
2021-01-19 14:10:46 +01:00
vdpa
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2020-12-24 12:06:46 -08:00
vfio
amba: Make the remove callback return void
2021-02-02 14:25:50 +01:00
vhost
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2021-01-05 13:30:28 -08:00
video
amba: Make the remove callback return void
2021-02-02 14:25:50 +01:00
virt
virt: acrn: Introduce irqfd
2021-02-09 10:58:19 +01:00
virtio
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2020-12-24 12:06:46 -08:00
visorbus
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vlynq
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vme
vme: switch from 'pci_' to 'dma_' API
2020-12-09 19:44:34 +01:00
w1
w1: w1_therm: Fix conversion result for negative temperatures
2021-01-27 14:59:16 +01:00
watchdog
mei: bus: change remove callback to return void
2021-02-09 09:30:16 +01:00
xen
Merge tag 'for-linus-5.11-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
2021-01-15 10:52:00 -08:00
zorro
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Kconfig
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Makefile
Merge tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
2020-12-16 00:07:17 -08:00