Re: [PATCH v3] Warn user if the vga flag is passed but no vga device is created

[Paolo Bonzini <pbonzini@redhat.com>]

On 5/6/22 16:48, Peter Maydell wrote:
>> I'm just in progress of preparing a pull request with misc patches, I can
>> also throw it in there if nobody minds.
> Paolo mentioned on IRC yesterday that there was some detail he thought
> it wasn't handling right with VGA_DEVICE, but I didn't really understand
> the details. Paolo ?

Yeah, I was wondering if this would warn for "-device VGA".  But if so 
it should be enough to do this to fix it:

diff --git a/softmmu/vl.c b/softmmu/vl.c
index eef1558281..7ff76b795a 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -1352,6 +1352,7 @@ static void qemu_disable_default_devices(void)

      if (!vga_model && !default_vga) {
          vga_interface_type = VGA_DEVICE;
+        vga_interface_created = true;
      }
      if (!has_defaults || machine_class->no_serial) {
          default_serial = 0;

Paolo