hw/display/ramfb: initialize fw-config space with xres/ yres

[thirdparty/qemu.git] / hw / display / ramfb.c

diff --git a/hw/display/ramfb.c b/hw/display/ramfb.c
index 0fe79aa8565fedcb68600e6d7a4b50ee62269752..b4eb283ef8cf7bc1bb60e30054ab0559ff9e1953 100644 (file)
--- a/hw/display/ramfb.c
+++ b/hw/display/ramfb.c
@@ -12,6 +12,7 @@
  */
 #include "qemu/osdep.h"
 #include "qapi/error.h"
+#include "qemu/option.h"
 #include "hw/loader.h"
 #include "hw/display/ramfb.h"
 #include "ui/console.h"
@@ -29,6 +30,7 @@ struct QEMU_PACKED RAMFBCfg {
 struct RAMFBState {
     DisplaySurface *ds;
     uint32_t width, height;
+    uint32_t starting_width, starting_height;
     struct RAMFBCfg cfg;
     bool locked;
 };
@@ -114,9 +116,11 @@ static void ramfb_reset(void *opaque)
     RAMFBState *s = (RAMFBState *)opaque;
     s->locked = false;
     memset(&s->cfg, 0, sizeof(s->cfg));
+    s->cfg.width = s->starting_width;
+    s->cfg.height = s->starting_height;
 }
 
-RAMFBState *ramfb_setup(Error **errp)
+RAMFBState *ramfb_setup(DeviceState* dev, Error **errp)
 {
     FWCfgState *fw_cfg = fw_cfg_find();
     RAMFBState *s;
@@ -128,6 +132,16 @@ RAMFBState *ramfb_setup(Error **errp)
 
     s = g_new0(RAMFBState, 1);
 
+    const char *s_fb_width = qemu_opt_get(dev->opts, "xres");
+    const char *s_fb_height = qemu_opt_get(dev->opts, "yres");
+    if (s_fb_width) {
+        s->cfg.width = atoi(s_fb_width);
+        s->starting_width = s->cfg.width;
+    }
+    if (s_fb_height) {
+        s->cfg.height = atoi(s_fb_height);
+        s->starting_height = s->cfg.height;
+    }
     s->locked = false;
 
     rom_add_vga("vgabios-ramfb.bin");