From 81a8a749f5e1f770933eb3889c069eff23cdf143 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Fri, 16 Oct 2009 08:34:49 +0100 Subject: x86: document tsc_native configuration option in xmexample.hvm. Set the default value to 1 Signed-off-by: Xiantao Zhang --- tools/examples/xmexample.hvm | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'tools/examples') diff --git a/tools/examples/xmexample.hvm b/tools/examples/xmexample.hvm index 5f43337007..e5ae97f966 100644 --- a/tools/examples/xmexample.hvm +++ b/tools/examples/xmexample.hvm @@ -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 -- cgit v1.2.3