[Crash-utility] [PATCH] Add xen_phys_start value in the crash info note
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>
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>