xen: add new Xen elfnote types and use them appropriately
Define recently added XEN_ELFNOTEs, and use them appropriately.
Most significantly, this enables domain checkpointing (xm save -c).
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 2ab5f42..ef6c9e0 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -7,6 +7,7 @@
#include <linux/init.h>
#include <asm/boot.h>
#include <xen/interface/elfnote.h>
+#include <asm/xen/interface.h>
__INIT
ENTRY(startup_xen)
@@ -32,5 +33,9 @@
ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz "!writable_page_tables|pae_pgdir_above_4gb")
ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "yes")
ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz "generic")
+ ELFNOTE(Xen, XEN_ELFNOTE_L1_MFN_VALID,
+ .quad _PAGE_PRESENT; .quad _PAGE_PRESENT)
+ ELFNOTE(Xen, XEN_ELFNOTE_SUSPEND_CANCEL, .long 1)
+ ELFNOTE(Xen, XEN_ELFNOTE_HV_START_LOW, .long __HYPERVISOR_VIRT_START)
#endif /*CONFIG_XEN */