# HG changeset patch
# User yamahata@xxxxxxxxxxxxx
# Date 1179733667 -32400
# Node ID c4006953d0d12b2d06347c2f1c6f34ff49e0651f
# Parent  03e04b861d91b78fbbf392b118dabfbbd61fe75f
implemented XENMEM_maximum_gpfn for domain save/restore with domain memmap.
PATCHNAME: implemented_xenmem_maximum_gpfn

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>

diff -r 03e04b861d91 -r c4006953d0d1 linux-2.6-xen-sparse/arch/ia64/xen/xcom_privcmd.c
--- a/linux-2.6-xen-sparse/arch/ia64/xen/xcom_privcmd.c	Wed May 23 10:40:19 2007 -0600
+++ b/linux-2.6-xen-sparse/arch/ia64/xen/xcom_privcmd.c	Mon May 21 16:47:47 2007 +0900
@@ -430,6 +430,21 @@ xencomm_privcmd_memory_op(privcmd_hyperc
 
 		return ret;
 	}
+	case XENMEM_maximum_gpfn:
+	{
+		domid_t kern_domid;
+		domid_t __user *user_domid;
+		struct xencomm_handle *desc;
+
+		user_domid = (domid_t __user *)hypercall->arg[1];
+		if (copy_from_user(&kern_domid, user_domid, sizeof(domid_t)))
+			return -EFAULT;
+		desc = xencomm_create_inline(&kern_domid);
+
+		ret = xencomm_arch_hypercall_memory_op(cmd, desc);
+
+		return ret;
+	}
 	case XENMEM_translate_gpfn_list:
 	{
 		xen_translate_gpfn_list_t kern_op;
diff -r 03e04b861d91 -r c4006953d0d1 xen/arch/ia64/xen/mm.c
--- a/xen/arch/ia64/xen/mm.c	Wed May 23 10:40:19 2007 -0600
+++ b/xen/arch/ia64/xen/mm.c	Mon May 21 16:47:47 2007 +0900
@@ -368,6 +368,12 @@ mm_final_teardown(struct domain* d)
         d->arch.shadow_bitmap = NULL;
     }
     mm_p2m_teardown(d);
+}
+
+unsigned long
+domain_get_maximum_gpfn(struct domain *d)
+{
+    return (d->arch.convmem_end + PAGE_SIZE - 1) >> PAGE_SHIFT;
 }
 
 // stolen from share_xen_page_with_guest() in xen/arch/x86/mm.c
diff -r 03e04b861d91 -r c4006953d0d1 xen/include/asm-ia64/mm.h
--- a/xen/include/asm-ia64/mm.h	Wed May 23 10:40:19 2007 -0600
+++ b/xen/include/asm-ia64/mm.h	Mon May 21 16:47:47 2007 +0900
@@ -506,6 +506,6 @@ int steal_page(
 
 #define domain_clamp_alloc_bitsize(d, b) (b)
 
-#define domain_get_maximum_gpfn(d) (-ENOSYS)
+unsigned long domain_get_maximum_gpfn(struct domain *d);
 
 #endif /* __ASM_IA64_MM_H__ */