[PATCH V3 1/1] libxl: set stub domain size based on VRAM size

From: Eric Shelton <eshelton@pobox.com>
To: xen-devel@lists.xenproject.org
Cc: wei.liu2@citrix.com, ian.campbell@citrix.com,
	stefano.stabellini@eu.citrix.com, ian.jackson@eu.citrix.com,
	samuel.thibault@ens-lyon.org, Eric Shelton <eshelton@pobox.com>
Subject: [PATCH V3 1/1] libxl: set stub domain size based on VRAM size
Date: Sat, 11 Jul 2015 17:30:42 -0400	[thread overview]
Message-ID: <1436650242-1067-2-git-send-email-eshelton@pobox.com> (raw)
In-Reply-To: <1436650242-1067-1-git-send-email-eshelton@pobox.com>

Allocate additional memory to the stub domain for qemu-traditional if
more than 4 MB is assigned to the video adapter to avoid out of memory
condition for QEMU.

Signed-off-by: Eric Shelton <eshelton@pobox.com>
---
 tools/libxl/libxl_dm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
index 317a8eb..9a5a937 100644
--- a/tools/libxl/libxl_dm.c
+++ b/tools/libxl/libxl_dm.c
@@ -1087,6 +1087,7 @@ void libxl__spawn_stub_dm(libxl__egc *egc, libxl__stub_dm_spawn_state *sdss)
 
     dm_config->b_info.max_vcpus = 1;
-    dm_config->b_info.max_memkb = 32 * 1024;
+    dm_config->b_info.max_memkb = 28 * 1024 +
+        guest_config->b_info.video_memkb;
     dm_config->b_info.target_memkb = dm_config->b_info.max_memkb;
 
     dm_config->b_info.u.pv.features = "";
-- 
2.1.0
