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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-20 09:24:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-20 09:24:01 -0700 |
| commit | 4a5bb973fa0353d25dbe854694c71bb58eb4cf78 (patch) | |
| tree | 599b573d63e143df6cd1abf5dab8aae49b734a28 /Documentation/admin-guide | |
| parent | 709ebe6dff50405ae83551578bc08c0f78b05158 (diff) | |
| parent | 5f7f77400ab5b357b5fdb7122c3442239672186c (diff) | |
Merge tag 'for-linus-5.10b-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull more xen updates from Juergen Gross:
- A single patch to fix the Xen security issue XSA-331 (malicious
guests can DoS dom0 by triggering NULL-pointer dereferences or access
to stale data).
- A larger series to fix the Xen security issue XSA-332 (malicious
guests can DoS dom0 by sending events at high frequency leading to
dom0's vcpus being busy in IRQ handling for elongated times).
* tag 'for-linus-5.10b-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/events: block rogue events for some time
xen/events: defer eoi in case of excessive number of events
xen/events: use a common cpu hotplug hook for event channels
xen/events: switch user event channels to lateeoi model
xen/pciback: use lateeoi irq binding
xen/pvcallsback: use lateeoi irq binding
xen/scsiback: use lateeoi irq binding
xen/netback: use lateeoi irq binding
xen/blkback: use lateeoi irq binding
xen/events: add a new "late EOI" evtchn framework
xen/events: fix race in evtchn_fifo_unmask()
xen/events: add a proper barrier to 2-level uevent unmasking
xen/events: avoid removing an event channel while handling it
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index f1eeba73d931..02d4adbf98d2 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -5970,6 +5970,14 @@ improve timer resolution at the expense of processing more timer interrupts. + xen.event_eoi_delay= [XEN] + How long to delay EOI handling in case of event + storms (jiffies). Default is 10. + + xen.event_loop_timeout= [XEN] + After which time (jiffies) the event handling loop + should start to delay EOI handling. Default is 2. + nopv= [X86,XEN,KVM,HYPER_V,VMWARE] Disables the PV optimizations forcing the guest to run as generic guest with no PV drivers. Currently support |