Zhang, Xiantao
2009-Oct-16 01:50 UTC
[Xen-devel] [PATCH]x86: document tsc_native configuration option in xmexample.hvm.
x86: document tsc_native configuration option in xmexample.hvm. Set the default value to 1 Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> diff -r 18758847bf31 tools/examples/xmexample.hvm --- a/tools/examples/xmexample.hvm Wed Oct 14 09:09:23 2009 +0100 +++ b/tools/examples/xmexample.hvm Fri Oct 16 09:42:14 2009 +0800 @@ -177,6 +177,12 @@ stdvga=0 # then xm console or minicom can connect serial=''pty'' +#---------------------------------------------------------------------------- +# tsc_native : TSC mode (0=emulate TSC, 1=native TSC) +# emulate TSC provides synced TSC for all vcpus, but lose perfomrance. +# native TSC leverages hardware''s TSC(no perf loss), but vcpu''s TSC may lose +# sync due to hardware''s unreliable/unsynced TSC between CPUs. +tsc_native=1 #----------------------------------------------------------------------------- # Qemu Monitor, default is disable _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel