[xen staging-4.15] tools/libxl: Replace deprecated -sdl option on QEMU command line

[patchbot@xxxxxxx]

commit c373ad3d084614a93c55e25dc20e70ffc7574971
Author:     Anthony PERARD <anthony.perard@xxxxxxxxxx>
AuthorDate: Mon Aug 15 15:42:09 2022 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Aug 15 15:42:09 2022 +0200

    tools/libxl: Replace deprecated -sdl option on QEMU command line
    
    "-sdl" is deprecated upstream since 6695e4c0fd9e ("softmmu/vl:
    Deprecate the -sdl and -curses option"), QEMU v6.2, and the option is
    removed by 707d93d4abc6 ("ui: Remove deprecated options "-sdl" and
    "-curses""), in upcoming QEMU v7.1.
    
    Instead, use "-display sdl", available since 1472a95bab1e ("Introduce
    -display argument"), before QEMU v1.0.
    
    Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
    Reviewed-by: Jason Andryuk <jandryuk@xxxxxxxxx>
    master commit: 41fcb3af8ad6d4c9f65a9d72798e6d18afec55ac
    master date: 2022-08-11 11:47:11 +0200
---
 tools/libs/light/libxl_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/libs/light/libxl_dm.c b/tools/libs/light/libxl_dm.c
index 24f6e73b0a..ae5f35e0c3 100644
--- a/tools/libs/light/libxl_dm.c
+++ b/tools/libs/light/libxl_dm.c
@@ -1349,7 +1349,7 @@ static int libxl__build_device_model_args_new(libxl__gc 
*gc,
     flexarray_append_pair(dm_args, "-display", "none");
 
     if (sdl && !is_stubdom) {
-        flexarray_append(dm_args, "-sdl");
+        flexarray_append_pair(dm_args, "-display", "sdl");
         if (sdl->display)
             flexarray_append_pair(dm_envs, "DISPLAY", sdl->display);
         if (sdl->xauthority)
--
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