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modules: add have_vga

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Introduce a symbol which can be used to prevent display modules which
need vga support being loaded into system emulators with CONFIG_VGA=n.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20210430113547.1816178-1-kraxel@redhat.com
Message-Id: <20210430113547.1816178-16-kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2021-04-30 13:35:46 +02:00
parent 17cdac0b51
commit 48ecfbf12c
2 changed files with 8 additions and 0 deletions
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6
include/hw/display/vga.h
View file

@ -11,6 +11,12 @@
#include "exec/hwaddr.h"
/*
* modules can reference this symbol to avoid being loaded
* into system emulators without vga support
*/
extern bool have_vga;
enum vga_retrace_method {
VGA_RETRACE_DUMB,
VGA_RETRACE_PRECISE