Import Xend part of xen-unstable changeset

11922:1e6b0a8a0822a22d313d9058fa0dc10c7a319821.

[IA64][HVM] Add buffer IO mechanism for Xen/VTi domain. Current
implementation can accelerate Windows guest's dense IO operations
at boot time.

Signed-off-by: Zhang xiantao <xiantao.zhang@intel.com>

diff --git a/tools/python/xen/xend/image.py b/tools/python/xen/xend/image.py
index 6808444303e900de7b629bdd57fb992e94016d2b..9749e9d861bdc44a71130fbe2810ae538b2984ba 100644 (file)
--- a/tools/python/xen/xend/image.py
+++ b/tools/python/xen/xend/image.py
@@ -471,7 +471,7 @@ class IA64_HVM_ImageHandler(HVMImageHandler):
     def getRequiredAvailableMemory(self, mem_kb):
         page_kb = 16
         # ROM size for guest firmware, ioreq page and xenstore page
-        extra_pages = 1024 + 2
+        extra_pages = 1024 + 3
         return mem_kb + extra_pages * page_kb
 
     def getRequiredShadowMemory(self, shadow_mem_kb, maxmem_kb):