[Xen-devel] [PATCH 03/14]: libxenlight, 8MB slack for PV domains

[Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>]

Contemplate 8MB of slack for PV domains, since they
do ballooning (or flipping network rx) and need
some extra room in their pfn space.

Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>

# HG changeset patch
# User Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>
# Date 1259252810 18000
# Node ID 5b7eed595f810af6a78aa17f28bfbdc0e5d11413
# Parent  eba3584b89d66e702fe9c193c0391b379b9248a0
Contemplate 8MB of slack for PV domains, since they
do ballooning (or flipping network rx) and need 
some extra room in their pfn space.

Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>

diff -r eba3584b89d6 -r 5b7eed595f81 libxl_dom.c
--- a/libxl_dom.c
+++ b/libxl_dom.c
@@ -53,7 +53,8 @@ int build_pre(struct libxl_ctx *ctx, uin
         xc_set_hvm_param(ctx->xch, domid, HVM_PARAM_VPT_ALIGN, (unsigned long) 
info->vpt_align);
     xc_domain_max_vcpus(ctx->xch, domid, info->max_vcpus);
     xc_domain_setmaxmem(ctx->xch, domid, info->max_memkb + info->video_memkb);
-    xc_domain_set_memmap_limit(ctx->xch, domid, info->max_memkb);
+    xc_domain_set_memmap_limit(ctx->xch, domid, 
+            (info->hvm) ? info->max_memkb : (info->max_memkb + (8*1024)));
 
     if (info->hvm) {
         unsigned long shadow;

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