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-rw-r--r--Documentation/admin-guide/kernel-parameters.txt11
1 files changed, 6 insertions, 5 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 243444711129..1bd225eca34c 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -7420,17 +7420,18 @@
Crash from Xen panic notifier, without executing late
panic() code such as dumping handler.
+ xen_mc_debug [X86,XEN,EARLY]
+ Enable multicall debugging when running as a Xen PV guest.
+ Enabling this feature will reduce performance a little
+ bit, so it should only be enabled for obtaining extended
+ debug data in case of multicall errors.
+
xen_msr_safe= [X86,XEN,EARLY]
Format: <bool>
Select whether to always use non-faulting (safe) MSR
access functions when running as Xen PV guest. The
default value is controlled by CONFIG_XEN_PV_MSR_SAFE.
- xen_nopvspin [X86,XEN,EARLY]
- Disables the qspinlock slowpath using Xen PV optimizations.
- This parameter is obsoleted by "nopvspin" parameter, which
- has equivalent effect for XEN platform.
-
xen_nopv [X86]
Disables the PV optimizations forcing the HVM guest to
run as generic HVM guest with no PV drivers.