hvmloader: Configure gPXE to use serial console

Sometimes we would rather connect to an HVM's serial console than it's
VGA display. In this case we cannot see or interact with the ethernet
booting process. This is a bit annoying so let's just enable it.

Signed-off-by: Gianni Tedesco <gianni.tedesco@citrix.com>

diff --git a/tools/firmware/etherboot/Config b/tools/firmware/etherboot/Config
index 5ce08bb9032be8fee7c7acb3d992e9ffba7d5f4a..143914f1352cecf5fe893f47861d0fe19a0d3721 100644 (file)
--- a/tools/firmware/etherboot/Config
+++ b/tools/firmware/etherboot/Config
@@ -6,3 +6,6 @@ CFLAGS += -DPXE_DHCP_STRICT
 
 CFLAGS += -UNO_POST_PROMPT
 CFLAGS += -DNO_POST_PROMPT
+
+CFLAGS += -UCONSOLE_SERIAL
+CFLAGS += -DCONSOLE_SERIAL=1