Juergen Gross e99502f762 xen/events: defer eoi in case of excessive number of events ... In case rogue guests are sending events at high frequency it might happen that xen_evtchn_do_upcall() won't stop processing events in dom0. As this is done in irq handling a crash might be the result. In order to avoid that, delay further inter-domain events after some time in xen_evtchn_do_upcall() by forcing eoi processing into a worker on the same cpu, thus inhibiting new events coming in. The time after which eoi processing is to be delayed is configurable via a new module parameter "event_loop_timeout" which specifies the maximum event loop time in jiffies (default: 2, the value was chosen after some tests showing that a value of 2 was the lowest with an only slight drop of dom0 network throughput while multiple guests performed an event storm). How long eoi processing will be delayed can be specified via another parameter "event_eoi_delay" (again in jiffies, default 10, again the value was chosen after testing with different delay values). This is part of XSA-332. Cc: stable@vger.kernel.org Reported-by: Julien Grall <julien@xen.org> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Reviewed-by: Wei Liu <wl@xen.org>		2020-10-20 10:22:16 +02:00
..
accessibility	Char/Misc driver fixes for 5.9-rc3	2020-08-26 10:50:50 -07:00
acpi	ACPI: processor: Fix build for ARCH_APICTIMER_STOPS_ON_C3 unset	2020-09-23 13:50:12 +02:00
amba	…
android	drivers: android: Fix the SPDX comment style	2020-07-29 17:05:44 +02:00
ata	libata-5.9-2020-09-04	2020-09-04 13:19:19 -07:00
atm	atm: eni: fix the missed pci_disable_device() for eni_init_one()	2020-09-04 21:42:57 -07:00
auxdisplay	A trivial patch for auxdisplay:	2020-09-05 14:22:46 -07:00
base	mm: don't rely on system state to detect hot-plug operations	2020-09-26 10:33:57 -07:00
bcma	bcma: gpio: Use irqchip template	2020-08-02 18:26:51 +03:00
block	xen/blkback: use lateeoi irq binding	2020-10-20 10:22:01 +02:00
bluetooth	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next	2020-07-31 15:11:52 -07:00
bus	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
cdrom	…
char	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2020-08-30 15:53:44 -07:00
clk	clk: socfpga: stratix10: fix the divider for the emac_ptp_free_clk	2020-09-22 12:54:41 -07:00
clocksource	clocksource: clint: Export clint_time_val for modules	2020-09-29 23:55:27 -07:00
connector	…
counter	counter: microchip-tcb-capture: check the correct variable	2020-08-22 11:38:42 +01:00
cpufreq	cpufreq: intel_pstate: Fix missing return statement	2020-09-30 17:37:23 +02:00
cpuidle	cpuidle: Drop misleading comments about RCU usage	2020-09-22 19:32:03 +02:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2020-08-30 15:53:44 -07:00
dax	dax: Fix stack overflow when mounting fsdax pmem device	2020-09-20 08:57:36 -07:00
dca	…
devfreq	PM / devfreq: tegra30: Disable clock on error in probe	2020-09-23 13:35:58 +09:00
dio	…
dma	dmaengine: dmatest: Prevent to run on misconfigured channel	2020-09-22 20:18:05 +05:30
dma-buf	dmabuf: fix NULL pointer dereference in dma_buf_release()	2020-09-21 11:17:06 +02:00
edac	EDAC/ghes: Check whether the driver is on the safe list correctly	2020-09-15 09:42:15 +02:00
eisa	…
extcon	…
firewire	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
firmware	Single EFI fix for v5.9-rc:	2020-09-20 15:18:11 -07:00
fpga	Linux 5.8-rc7	2020-07-27 11:49:37 +02:00
fsi	…
gnss	…
gpio	Some late GPIO fixes for the v5.9 series:	2020-10-02 09:51:42 -07:00
gpu	Merge tag 'amd-drm-fixes-5.9-2020-09-30' of git://people.freedesktop.org/~agd5f/linux into drm-fixes	2020-10-01 15:25:33 +10:00
greybus	greybus: Use fallthrough pseudo-keyword	2020-07-29 16:58:08 +02:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid	2020-09-02 12:55:46 -07:00
hsi	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
hv	hyperv-fixes for 5.9-rc6	2020-09-15 16:20:43 -07:00
hwmon	hwmon fixes for v5.9-rc3	2020-08-29 12:37:00 -07:00
hwspinlock	…
hwtracing	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
i2c	i2c: npcm7xx: Clear LAST bit after a failed transaction.	2020-09-27 20:05:27 +02:00
i3c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
ide	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
idle	cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic	2020-08-26 12:41:53 +02:00
iio	iio: adc: qcom-spmi-adc5: fix driver name	2020-09-22 13:33:19 +01:00
infiniband	RDMA/core: Fix ordering of CQ pool destruction	2020-09-14 15:20:18 -03:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-10-03 11:37:23 -07:00
interconnect	interconnect: qcom: Fix small BW votes being truncated to zero	2020-09-04 00:07:12 +03:00
iommu	iommu/vt-d: Fix lockdep splat in iommu_flush_dev_iotlb()	2020-10-01 14:54:17 +02:00
ipack	…
irqchip	A set of fixes for interrupt chip drivers:	2020-08-30 11:56:54 -07:00
isdn	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
leds	LEDs changes for 5.9-rc1.	2020-08-05 19:24:27 -07:00
lightnvm	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
macintosh	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mailbox	iomap: constify ioreadX() iomem argument (as in generic implementation)	2020-08-14 19:56:57 -07:00
mcb	…
md	dm: fix comment in dm_process_bio()	2020-09-21 19:49:15 -04:00
media	media fixes for v5.9-rc7	2020-09-24 09:05:04 -07:00
memory	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
memstick	memstick: Skip allocating card when removing host	2020-09-28 12:16:13 +02:00
message	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mfd	- Bug Fixes	2020-08-28 10:15:33 -07:00
misc	Char / Misc driver fixes for 5.9-rc5	2020-09-13 08:52:21 -07:00
mmc	mmc: sdhci: Workaround broken command queuing on Intel GLK based IRBIS models	2020-09-28 12:16:47 +02:00
most	drivers: most: add USB adapter driver	2020-07-31 14:38:12 +02:00
mtd	Revert "mtd: spi-nor: Add capability to disable flash quad mode"	2020-09-14 20:58:27 +05:30
mux	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
net	xen/netback: use lateeoi irq binding	2020-10-20 10:22:03 +02:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-09-03 18:50:48 -07:00
ntb	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
nubus	…
nvdimm	libnvdimm: KASAN: global-out-of-bounds Read in internal_create_group	2020-08-17 14:47:38 -06:00
nvme	block-5.9-2020-09-25	2020-09-26 11:07:36 -07:00
nvmem	nvmem: qcom-spmi-sdam: Enable multiple devices	2020-07-29 17:12:09 +02:00
of	of: address: Work around missing device_type property in pcie nodes	2020-08-19 16:30:57 -06:00
opp	Merge branch 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm	2020-09-01 19:44:20 +02:00
oprofile	…
parisc	Merge branch 'parisc-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux	2020-08-12 12:41:15 -07:00
parport	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
pci	pci-v5.9-fixes-2	2020-10-02 14:48:25 -07:00
pcmcia	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
perf	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
phy	phy: Second round of fixes for 5.9	2020-09-29 17:21:54 +02:00
pinctrl	pinctrl: mediatek: check mtk_is_virt_gpio input parameter	2020-10-01 09:51:36 +02:00
platform	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
pnp	…
power	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
powercap	powercap: RAPL: Add support for Lakefield	2020-09-16 14:16:04 +02:00
pps	…
ps3	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
ptp	ptp: ptp_clockmatrix: use i2c_master_send for i2c write	2020-08-19 16:23:22 -07:00
pwm	pwm: Changes for v5.9-rc1	2020-08-14 16:00:09 -07:00
rapidio	rapidio: Replace 'select' DMAENGINES 'with depends on'	2020-09-05 19:52:54 +03:00
ras	…
regulator	regulator: Fix for v5.9	2020-09-25 15:16:01 -07:00
remoteproc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
reset	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
rpmsg	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
rtc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
s390	s390 fixes for 5.9-rc7	2020-09-26 11:01:18 -07:00
sbus	…
scsi	SCSI fixes on 20201002	2020-10-02 14:42:13 -07:00
sfi	…
sh	iomap: constify ioreadX() iomem argument (as in generic implementation)	2020-08-14 19:56:57 -07:00
siox	…
slimbus	…
soc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
soundwire	soundwire: fix double free of dangling pointer	2020-09-03 14:10:19 +05:30
spi	spi: Fixes for v5.9	2020-09-25 15:21:54 -07:00
spmi	…
ssb	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
staging	Staging / IIO driver fixes for 5.9-rc5	2020-09-13 09:15:20 -07:00
target	SCSI fixes on 20201002	2020-10-02 14:42:13 -07:00
tc	…
tee	…
thermal	- Fix bogus thermal shutdowns for omap4430 where bogus values	2020-09-04 12:49:03 -07:00
thunderbolt	thunderbolt: Fix for v5.9-rc6	2020-09-15 13:52:14 +02:00
tty	serial: 8250_pci: Add Realtek 816a and 816b	2020-09-16 13:23:33 +02:00
uio	…
usb	usbcore/driver: Accommodate usbip	2020-09-25 16:53:02 +02:00
vdpa	vdpa/mlx5: Avoid warnings about shifts on 32-bit platforms	2020-08-26 08:13:59 -04:00
vfio	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
vhost	vhost-vdpa: fix backend feature ioctls	2020-09-24 05:54:36 -04:00
video	TTY/Serial/fbcon fixes for 5.9-rc6	2020-09-20 10:46:26 -07:00
virt	…
virtio	virtio: pci: constify ioreadX() iomem argument (as in generic implementation)	2020-08-14 19:56:57 -07:00
visorbus	…
vlynq	…
vme	…
w1	…
watchdog	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
xen	xen/events: defer eoi in case of excessive number of events	2020-10-20 10:22:16 +02:00
zorro	…
Kconfig	…
Makefile	…