tools/libxl: Added vga parameter for hvm domUs

Usage:
  vga="stdvga"|"cirrus"

- Default option is cirrus.
- Prints error and exit if unknown value is passed.
- stdvga parameter is now deprecated.
- Updated xl.cfg man.

Signed-off-by: Fabio Fantoni <fabio.fantoni@heliman.it>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index 9c554ba040..003b12963d 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -1474,7 +1474,19 @@ skip_vfb:
 #undef parse_extra_args
 
     if (c_info->type == LIBXL_DOMAIN_TYPE_HVM) {
-        if (!xlu_cfg_get_long(config, "stdvga", &l, 0))
+        if (!xlu_cfg_get_string (config, "vga", &buf, 0)) {
+            if (!strcmp(buf, "stdvga")) {
+                b_info->u.hvm.vga.kind
+                = LIBXL_VGA_INTERFACE_TYPE_STD;
+            } else if (!strcmp(buf, "cirrus")) {
+                b_info->u.hvm.vga.kind
+                = LIBXL_VGA_INTERFACE_TYPE_CIRRUS;
+            } else {
+                fprintf(stderr,
+                "Unknown vga \"%s\" specified\n", buf);
+                exit(1);
+            }
+        } else if (!xlu_cfg_get_long(config, "stdvga", &l, 0))
             b_info->u.hvm.vga.kind = l ? LIBXL_VGA_INTERFACE_TYPE_STD :
                                          LIBXL_VGA_INTERFACE_TYPE_CIRRUS;