[Xen-devel] [PATCH] set pv guest default video_memkb to 0

[Zhigang Wang <zhigang.x.wang@xxxxxxxxxx>]

Before this patch, pv guest video_memkb is -1, which is an invalid value.
And it will cause the xenstore 'memory/targe' calculation wrong:

    memory/target = info->target_memkb - info->video_memkb

Signed-off-by: Zhigang Wang <zhigang.x.wang@xxxxxxxxxx>
---
 tools/libxl/libxl_create.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index b1ff5ae..1198225 100644
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -357,6 +357,8 @@ int libxl__domain_build_info_setdefault(libxl__gc *gc,
         break;
     case LIBXL_DOMAIN_TYPE_PV:
         libxl_defbool_setdefault(&b_info->u.pv.e820_host, false);
+        if (b_info->video_memkb == LIBXL_MEMKB_DEFAULT)
+            b_info->video_memkb = 0;
         if (b_info->shadow_memkb == LIBXL_MEMKB_DEFAULT)
             b_info->shadow_memkb = 0;
         if (b_info->u.pv.slack_memkb == LIBXL_MEMKB_DEFAULT)
-- 
1.8.3.1


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