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

This reverts commit f79081b.

Patch has broken byteorder handling: RAMFBCfg fields are in bigendian
byteorder, the reset function doesn't care so native byteorder is used
instead.  Given this went unnoticed so far the feature is obviously
unused, so just revert the patch.

Cc: Hou Qiming <[email protected]>
Signed-off-by: Gerd Hoffmann <[email protected]>
Acked-by: Laszlo Ersek <[email protected]>
Message-id: [email protected]

hw/display/ramfb-standalone.c

@@ -3,7 +3,6 @@
 #include "qemu/module.h"
 #include "hw/loader.h"
 #include "hw/qdev-properties.h"
-#include "hw/isa/isa.h"
 #include "hw/display/ramfb.h"
 #include "ui/console.h"
 
@@ -13,8 +12,6 @@ typedef struct RAMFBStandaloneState {
     SysBusDevice parent_obj;
     QemuConsole *con;
     RAMFBState *state;
-    uint32_t xres;
-    uint32_t yres;
 } RAMFBStandaloneState;
 
 static void display_update_wrapper(void *dev)
@@ -37,22 +34,15 @@ static void ramfb_realizefn(DeviceState *dev, Error **errp)
     RAMFBStandaloneState *ramfb = RAMFB(dev);
 
     ramfb->con = graphic_console_init(dev, 0, &wrapper_ops, dev);
-    ramfb->state = ramfb_setup(dev, errp);
+    ramfb->state = ramfb_setup(errp);
 }
 
-static Property ramfb_properties[] = {
-    DEFINE_PROP_UINT32("xres", RAMFBStandaloneState, xres, 0),
-    DEFINE_PROP_UINT32("yres", RAMFBStandaloneState, yres, 0),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
 static void ramfb_class_initfn(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
     dc->realize = ramfb_realizefn;
-    device_class_set_props(dc, ramfb_properties);
     dc->desc = "ram framebuffer standalone device";
     dc->user_creatable = true;
 }

hw/display/ramfb.c

@@ -13,7 +13,6 @@
 
 #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"
@@ -31,7 +30,6 @@ struct QEMU_PACKED RAMFBCfg {
 struct RAMFBState {
     DisplaySurface *ds;
     uint32_t width, height;
-    uint32_t starting_width, starting_height;
     struct RAMFBCfg cfg;
     bool locked;
 };
@@ -117,11 +115,9 @@ 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(DeviceState* dev, Error **errp)
+RAMFBState *ramfb_setup(Error **errp)
 {
     FWCfgState *fw_cfg = fw_cfg_find();
     RAMFBState *s;
@@ -133,16 +129,6 @@ RAMFBState *ramfb_setup(DeviceState* dev, 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");

hw/vfio/display.c

@@ -353,7 +353,7 @@ static int vfio_display_dmabuf_init(VFIOPCIDevice *vdev, Error **errp)
                                           &vfio_display_dmabuf_ops,
                                           vdev);
     if (vdev->enable_ramfb) {
-        vdev->dpy->ramfb = ramfb_setup(DEVICE(vdev), errp);
+        vdev->dpy->ramfb = ramfb_setup(errp);
     }
     vfio_display_edid_init(vdev);
     return 0;
@@ -479,7 +479,7 @@ static int vfio_display_region_init(VFIOPCIDevice *vdev, Error **errp)
                                           &vfio_display_region_ops,
                                           vdev);
     if (vdev->enable_ramfb) {
-        vdev->dpy->ramfb = ramfb_setup(DEVICE(vdev), errp);
+        vdev->dpy->ramfb = ramfb_setup(errp);
     }
     return 0;
 }

include/hw/display/ramfb.h

@@ -4,7 +4,7 @@
 /* ramfb.c */
 typedef struct RAMFBState RAMFBState;
 void ramfb_display_update(QemuConsole *con, RAMFBState *s);
-RAMFBState *ramfb_setup(DeviceState *dev, Error **errp);
+RAMFBState *ramfb_setup(Error **errp);
 
 /* ramfb-standalone.c */
 #define TYPE_RAMFB_DEVICE "ramfb"

stubs/ramfb.c

@@ -6,7 +6,7 @@ void ramfb_display_update(QemuConsole *con, RAMFBState *s)
 {
 }
 
-RAMFBState *ramfb_setup(DeviceState* dev, Error **errp)
+RAMFBState *ramfb_setup(Error **errp)
 {
     error_setg(errp, "ramfb support not available");
     return NULL;