Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com>
---
diff -r 746955812d23 tools/libxc/xc_dom_x86.c
--- a/tools/libxc/xc_dom_x86.c	Wed Mar 11 17:47:56 2009 -0700
+++ b/tools/libxc/xc_dom_x86.c	Wed Mar 18 14:31:07 2009 -0700
@@ -25,6 +25,7 @@
 #include "xenctrl.h"
 
 /* ------------------------------------------------------------------------ */
+#define MEM_CHUNKSZ                  1024*1024
 
 #define bits_to_mask(bits)       (((xen_vaddr_t)1 << (bits))-1)
 #define round_down(addr, mask)   ((addr) & ~(mask))
@@ -694,7 +695,7 @@ int arch_setup_meminit(struct xc_dom_ima
 int arch_setup_meminit(struct xc_dom_image *dom)
 {
     int rc;
-    xen_pfn_t pfn;
+    xen_pfn_t pfn, pages, allocsz, *p2mp;
 
     rc = x86_compat(dom->guest_xc, dom->guest_domid, dom->guest_type);
     if ( rc )
@@ -712,10 +713,16 @@ int arch_setup_meminit(struct xc_dom_ima
     for ( pfn = 0; pfn < dom->total_pages; pfn++ )
         dom->p2m_host[pfn] = pfn;
 
-    /* allocate guest memory */
-    rc = xc_domain_memory_populate_physmap(dom->guest_xc, dom->guest_domid,
-                                           dom->total_pages, 0, 0,
-                                           dom->p2m_host);
+    /* allocate guest memory MEM_CHUNKSZ at a time */
+    for ( rc=0, p2mp=dom->p2m_host, pages=dom->total_pages; !rc && pages; )
+    {
+        allocsz = (pages <= MEM_CHUNKSZ) ? pages : MEM_CHUNKSZ;
+        rc = xc_domain_memory_populate_physmap(dom->guest_xc, dom->guest_domid,
+                                               allocsz, 0, 0, p2mp);
+        pages -= allocsz;
+        p2mp += allocsz;
+    }
+
     return rc;
 }