Hi, This patch makes the vmcore utilities (ex. crash, makedumpfile) be able to get the relocation address of the xen hypervisor from a vmcore. It is necessary for the utilities to find the data of the hypervisor structures. Note that this patch does not raise any comptibility issue for the utilities (which I know) nor the other components of xen. Signed-off-by: Itsuro Oda <oda(a)valinux.co.jp&gt; diff -r f681c4de91fc xen/arch/x86/crash.c --- a/xen/arch/x86/crash.c Wed May 28 16:14:10 2008 +0100 +++ b/xen/arch/x86/crash.c Fri May 30 08:40:50 2008 +0900 @@ -102,6 +102,7 @@ void machine_crash_shutdown(void) hvm_cpu_down(); info = kexec_crash_save_info(); + info->xen_phys_start = xen_phys_start; info->dom0_pfn_to_mfn_frame_list_list = arch_get_pfn_to_mfn_frame_list_list(dom0); } diff -r f681c4de91fc xen/include/xen/elfcore.h --- a/xen/include/xen/elfcore.h Wed May 28 16:14:10 2008 +0100 +++ b/xen/include/xen/elfcore.h Fri May 30 08:39:40 2008 +0900 @@ -66,6 +66,7 @@ typedef struct { unsigned long xen_compile_time; unsigned long tainted; #if defined(__i386__) || defined(__x86_64__) + unsigned long xen_phys_start; unsigned long dom0_pfn_to_mfn_frame_list_list; #endif #if defined(__ia64__) -- Itsuro ODA <oda(a)valinux.co.jp&gt;