On Fri, 2014-11-21 at 09:28 +0000, Ian Campbell wrote: e.g. something like the following untested (but pretty obvious[0]) patch. I'm currently rebuilding Debian's libvirt package with this included so I can give it a go. Ian. [0] famous last words, I know! 8<--------------- From: Ian Campbell <ian.campbell(a)citrix.com&gt; Date: Fri, 21 Nov 2014 14:00:38 +0000 Subject: [PATCH] libxl: Allow libxl to find pygrub binary. Specifying an explicit path to pygrub (e.g. BINDIR "/pygrub") only works if Xen and libvirt happen to be installed to the same prefix. A more flexible approach is to simply specify "pygrub" which will cause libxl to use the correct path which it knows (since it is built with the same prefix as pygrub). This is particular problematic in the Debian packaging, since the Debian Xen package relocates pygrub into a libexec dir, however I think this change makes sense upstream. Signed-off-by: Ian Campbell <ian.campbell(a)citrix.com&gt; --- src/libxl/libxl_conf.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h index 25f77ea..3669e68 100644 --- a/src/libxl/libxl_conf.h +++ b/src/libxl/libxl_conf.h @@ -53,7 +53,7 @@ # define LIBXL_LIB_DIR LOCALSTATEDIR "/lib/libvirt/libxl" # define LIBXL_SAVE_DIR LIBXL_LIB_DIR "/save" # define LIBXL_DUMP_DIR LIBXL_LIB_DIR "/dump" -# define LIBXL_BOOTLOADER_PATH BINDIR "/pygrub" +# define "pygrub" /* libxl interface for setting VCPU affinity changed in 4.5. In fact, a new * parameter has been added, representative of 'VCPU soft affinity'. If one -- 1.7.10.4