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25da4618af
linux/drivers
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Juergen Gross 25da4618af xen/events: don't unmask an event channel when an eoi is pending 
An event channel should be kept masked when an eoi is pending for it.
When being migrated to another cpu it might be unmasked, though.

In order to avoid this keep three different flags for each event channel
to be able to distinguish "normal" masking/unmasking from eoi related
masking/unmasking and temporary masking. The event channel should only
be able to generate an interrupt if all flags are cleared.

Cc: stable@vger.kernel.org
Fixes: 54c9de8989 ("xen/events: add a new "late EOI" evtchn framework")
Reported-by: Julien Grall <julien@xen.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Julien Grall <jgrall@amazon.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Link: https://lore.kernel.org/r/20210306161833.4552-3-jgross@suse.com

[boris -- corrected Fixed tag format]

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2021-03-10 16:37:29 -06:00
..
accessibility tty: rename tty_kopen() and add new function tty_kopen_shared() 2020-12-28 16:09:11 +01:00
acpi - Use the newly introduced 'hot' and 'critical' ops for the acpi 2021-02-22 09:39:11 -08:00
amba
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 ata: Avoid comma separated statements 2021-01-31 08:05:46 -07:00
atm atm: idt77252: fix build broken on amd64 2021-02-15 12:36:27 -08:00
auxdisplay auxdisplay: Fix duplicate CHARLCD config symbol 2021-01-25 22:14:19 +01:00
base Devicetree updates for v5.12: 2021-02-22 10:05:12 -08:00
bcma
block xen: branch for v5.12-rc1 2021-02-21 13:06:08 -08:00
bluetooth TTY/Serial driver changes for 5.12-rc1 2021-02-20 21:28:04 -08:00
bus ARM: SoC drivers for v5.12 2021-02-20 18:42:28 -08:00
cdrom block: remove unnecessary argument from blk_execute_rq 2021-01-24 21:52:39 -07:00
char Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-02-21 17:23:56 -08:00
clk This is all driver updates, the majority of which is a bunch of new Qualcomm 2021-02-22 09:45:23 -08:00
clocksource hyperv-next for 5.12 2021-02-21 13:24:39 -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 Merge branch 'pm-opp' into pm 2021-02-15 17:01:46 +01:00
cpuidle ARM: SoC drivers for v5.11 2020-12-16 16:38:41 -08:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-02-21 17:23:56 -08:00
dax libnvdimm for 5.11 2020-12-24 12:18:11 -08:00
dca
devfreq Merge branches 'pm-devfreq' and 'pm-tools' 2021-02-15 17:02:04 +01:00
dio
dma dmaengine dw: Revert "dmaengine: dw: Enable runtime PM" 2021-02-08 17:36:12 +05:30
dma-buf dma-buf: Avoid comma separated statements 2021-02-09 17:14:11 +01:00
edac Merge branch 'edac-misc' into edac-updates-for-v5.12 2021-02-15 10:06:58 +01:00
eisa
extcon extcon: max77693: Fix modalias string 2020-12-11 17:18:10 +09:00
firewire
firmware MMC core: 2021-02-22 09:05:28 -08:00
fpga
fsi hwmon patches for v5.11 2020-12-15 16:06:14 -08:00
gnss
gpio gpio updates for v5.12 2021-02-22 10:00:46 -08:00
gpu platform-drivers-x86 for v5.12-1 2021-02-22 08:50:01 -08:00
greybus
hid Staging/IIO driver patches for 5.12-rc1 2021-02-20 21:36:51 -08:00
hsi HSI: Fix PM usage counter unbalance in ssi_hw_init 2020-12-29 23:57:06 +01:00
hv Revert "Drivers: hv: vmbus: Copy packets sent by Hyper-V out of the ring buffer" 2021-02-15 10:49:11 +00:00
hwmon Devicetree updates for v5.12: 2021-02-22 10:05:12 -08:00
hwspinlock
hwtracing intel_th: pci: Add Alder Lake-P support 2021-01-21 18:54:43 +01:00
i2c Merge branch 'i2c/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2021-02-22 09:02:24 -08:00
i3c I3C for 5.12 2021-02-22 09:52:55 -08:00
ide block: remove unnecessary argument from blk_execute_rq 2021-01-24 21:52:39 -07:00
idle intel_idle: remove definition of DEBUG 2021-01-22 16:46:16 +01:00
iio - Use the newly introduced 'hot' and 'critical' ops for the acpi 2021-02-22 09:39:11 -08:00
infiniband Linux 5.11 2021-02-18 11:19:29 -04:00
input sound updates for 5.12 2021-02-21 14:21:35 -08:00
interconnect interconnect: imx8mq: Use icc_sync_state 2020-12-28 14:03:02 +02:00
iommu IOMMU Updates for Linux v5.12 2021-02-22 10:31:29 -08:00
ipack
irqchip irqchip updates for Linux 5.12: 2021-02-15 15:41:56 +01:00
isdn misdn: dsp: select CONFIG_BITREVERSE 2021-01-05 15:50:36 -08:00
leds TTY/Serial driver changes for 5.12-rc1 2021-02-20 21:28:04 -08:00
lightnvm lightnvm: pblk: Replace guid_copy() with export_guid()/import_guid() 2021-02-14 21:27:24 -07:00
macintosh macintosh/adb-iop: Use big-endian autopoll mask 2021-01-25 13:23:38 +01:00
mailbox
mcb
md - Fix DM integrity's HMAC support to provide enhanced security of 2021-02-22 10:22:54 -08:00
media Devicetree updates for v5.12: 2021-02-22 10:05:12 -08:00
memory IOMMU Updates for Linux v5.12 2021-02-22 10:31:29 -08:00
memstick
message scsi: message: fusion: Fix 'physical' typos 2021-01-26 23:25:16 -05:00
mfd - Core Frameworks 2021-02-22 09:29:42 -08:00
misc - HDCP 2.2 and HDCP 1.4 Gen12 DP MST support (Anshuman) 2021-01-29 17:05:15 +10:00
mmc MMC core: 2021-02-22 09:05:28 -08:00
most
mtd This pull request contains changes (actually just fixes) for UBIFS 2021-02-21 13:57:08 -08:00
mux
net xen-netback: respect gnttab_map_refs()'s return value 2021-03-03 08:32:11 +01:00
nfc nfc: st-nci: Remove unnecessary variable 2021-02-08 14:56:20 -08:00
ntb Big fix for IDT NTB and Intel NTB LTR management support 2020-12-27 09:22:55 -08:00
nubus
nvdimm for-5.12/block-2021-02-17 2021-02-21 11:02:48 -08:00
nvme for-5.12/drivers-2021-02-17 2021-02-21 11:06:54 -08:00
nvmem
of Devicetree updates for v5.12: 2021-02-22 10:05:12 -08:00
opp OPP: Add function to look up required OPP's for a given OPP 2021-02-04 16:30:14 +05:30
parisc
parport parport: fix a kernel-doc markup 2021-01-21 14:06:00 -07:00
pci drm pull for 5.12-rc1 2021-02-21 14:44:44 -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 IOMMU Updates for Linux v5.12 2021-02-22 10:31:29 -08:00
phy phy: mediatek: allow compile-testing the dsi phy 2021-01-04 13:00:54 +05:30
pinctrl gpio: visconti: Add Toshiba Visconti GPIO support 2021-02-15 11:43:26 +01:00
platform - Use the newly introduced 'hot' and 'critical' ops for the acpi 2021-02-22 09:39:11 -08:00
pnp PNP: pnpbios: Use DEFINE_SPINLOCK() for spinlock 2021-01-22 16:22:57 +01:00
power power-supply: use kobj_to_dev() 2021-01-28 01:31:42 +01:00
powercap powercap: intel_rapl: Use topology interface in rapl_init_domains() 2021-02-12 16:53:01 +01:00
pps
ps3 powerpc/ps3: use dma_mapping_error() 2020-12-15 22:50:12 +11:00
ptp ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are unnecessary 2021-02-17 13:49:26 -08:00
pwm pwm: Changes for v5.11-rc1 2020-12-19 11:51:32 -08:00
rapidio rapidio: fix kernel-doc a markup 2021-01-21 14:06:00 -07:00
ras
regulator - Core Frameworks 2021-02-22 09:29:42 -08:00
remoteproc ARM: SoC drivers for v5.11 2020-12-16 16:38:41 -08:00
reset ARM: SoC drivers for v5.12 2021-02-20 18:42:28 -08:00
rpmsg
rtc RTC for 5.12 2021-02-22 09:54:19 -08:00
s390 SCSI misc on 20210219 2021-02-22 10:24:58 -08:00
sbus
scsi SCSI misc on 20210219 2021-02-22 10:24:58 -08:00
sfi
sh sh/intc: Restore devm_ioremap() alignment 2021-01-06 19:55:29 -05:00
siox
slimbus
soc This is all driver updates, the majority of which is a bunch of new Qualcomm 2021-02-22 09:45:23 -08:00
soundwire
spi spi: Updates for v5.12 2021-02-22 09:19:08 -08:00
spmi
ssb
staging media updates for v5.12-rc1 2021-02-21 14:10:36 -08:00
target SCSI misc on 20210219 2021-02-22 10:24:58 -08:00
tc
tee Simplify i2c acess in OP-TEE driver 2021-02-09 16:10:49 +01:00
thermal - Use the newly introduced 'hot' and 'critical' ops for the acpi 2021-02-22 09:39:11 -08:00
thunderbolt thunderbolt: Changes for v5.12 merge window 2021-02-09 13:00:07 +01:00
tty Devicetree updates for v5.12: 2021-02-22 10:05:12 -08:00
uio
usb Devicetree updates for v5.12: 2021-02-22 10:05:12 -08:00
vdpa vdpa/mlx5: Restore the hardware used index after change map 2021-02-05 10:28:04 -05:00
vfio ARM: 2020-12-20 10:44:05 -08:00
vhost vhost_net: avoid tx queue stuck when sendmsg fails 2021-01-19 11:13:30 -08:00
video - New Functionality 2021-02-22 09:27:18 -08:00
virt
virtio virtio,vdpa: features, cleanups, fixes 2020-12-24 12:06:46 -08:00
visorbus
vlynq
vme
w1
watchdog linux-watchdog 5.12-rc1 tag 2021-02-22 09:07:51 -08:00
xen xen/events: don't unmask an event channel when an eoi is pending 2021-03-10 16:37:29 -06:00
zorro
Kconfig
Makefile asm-generic: cross-architecture timer cleanup 2020-12-16 00:07:17 -08:00