Merge remote-tracking branch 'remotes/kraxel/tags/vga-20200929-pull-request' into staging

virtio-vga: reset fix, bigendian fix.
virtio-vga+spice: set monitor dimension via edid.

# gpg: Signature made Tue 29 Sep 2020 10:57:01 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/vga-20200929-pull-request:
  ppc/pseries: enable big-endian-framebuffer quirk for bochs-display and virtio-vga
  virtio-vga: implement big-endian-framebuffer property
  virtio-gpu: set physical dimensions for EDID
  spice: get monitors physical dimension
  spice: remove the single monitor config logic
  ui: add getter for UIInfo
  edid: use physical dimensions if available
  edid: fix physical display size computation
  virtio-gpu-3d: fix abnormal display after a warm reboot

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/display/edid-generate.c

@@ -205,12 +205,8 @@ static void edid_desc_dummy(uint8_t *desc)
 
 static void edid_desc_timing(uint8_t *desc,
                              uint32_t xres, uint32_t yres,
-                             uint32_t dpi)
+                             uint32_t xmm, uint32_t ymm)
 {
-    /* physical display size */
-    uint32_t xmm = xres * dpi / 254;
-    uint32_t ymm = yres * dpi / 254;
-
     /* pull some realistic looking timings out of thin air */
     uint32_t xfront = xres * 25 / 100;
     uint32_t xsync  = xres *  3 / 100;
@@ -290,12 +286,24 @@ static void edid_colorspace(uint8_t *edid,
     edid[34] = white_y >> 2;
 }
 
+static uint32_t qemu_edid_dpi_from_mm(uint32_t mm, uint32_t res)
+{
+    return res * 254 / 10 / mm;
+}
+
+uint32_t qemu_edid_dpi_to_mm(uint32_t dpi, uint32_t res)
+{
+    return res * 254 / 10 / dpi;
+}
+
 void qemu_edid_generate(uint8_t *edid, size_t size,
                         qemu_edid_info *info)
 {
     uint32_t desc = 54;
     uint8_t *xtra3 = NULL;
     uint8_t *dta = NULL;
+    uint32_t width_mm, height_mm;
+    uint32_t dpi = 100; /* if no width_mm/height_mm */
 
     /* =============== set defaults  =============== */
 
@@ -305,15 +313,20 @@ void qemu_edid_generate(uint8_t *edid, size_t size,
     if (!info->name) {
         info->name = "QEMU Monitor";
     }
-    if (!info->dpi) {
-        info->dpi = 100;
-    }
     if (!info->prefx) {
         info->prefx = 1024;
     }
     if (!info->prefy) {
         info->prefy = 768;
     }
+    if (info->width_mm && info->height_mm) {
+        width_mm = info->width_mm;
+        height_mm = info->height_mm;
+        dpi = qemu_edid_dpi_from_mm(width_mm, info->prefx);
+    } else {
+        width_mm = qemu_edid_dpi_to_mm(dpi, info->prefx);
+        height_mm = qemu_edid_dpi_to_mm(dpi, info->prefy);
+    }
 
     /* =============== extensions  =============== */
 
@@ -360,8 +373,8 @@ void qemu_edid_generate(uint8_t *edid, size_t size,
     edid[20] = 0xa5;
 
     /* screen size: undefined */
-    edid[21] = info->prefx * 254 / 100 / info->dpi;
-    edid[22] = info->prefy * 254 / 100 / info->dpi;
+    edid[21] = width_mm / 10;
+    edid[22] = height_mm / 10;
 
     /* display gamma: 2.2 */
     edid[23] = 220 - 100;
@@ -387,7 +400,8 @@ void qemu_edid_generate(uint8_t *edid, size_t size,
 
     /* =============== descriptor blocks =============== */
 
-    edid_desc_timing(edid + desc, info->prefx, info->prefy, info->dpi);
+    edid_desc_timing(edid + desc, info->prefx, info->prefy,
+                     width_mm, height_mm);
     desc += 18;
 
     edid_desc_ranges(edid + desc);

hw/display/virtio-gpu-3d.c

@@ -595,7 +595,7 @@ void virtio_gpu_virgl_reset(VirtIOGPU *g)
 {
     int i;
 
-    /* virgl_renderer_reset() ??? */
+    virgl_renderer_reset();
     for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
         if (i != 0) {
             dpy_gfx_replace_surface(g->parent_obj.scanout[i].con, NULL);

hw/display/virtio-gpu-base.c

@@ -82,6 +82,8 @@ static int virtio_gpu_ui_info(void *opaque, uint32_t idx, QemuUIInfo *info)
     g->req_state[idx].y = info->yoff;
     g->req_state[idx].width = info->width;
     g->req_state[idx].height = info->height;
+    g->req_state[idx].width_mm = info->width_mm;
+    g->req_state[idx].height_mm = info->height_mm;
 
     if (info->width && info->height) {
         g->enabled_output_bitmask |= (1 << idx);

hw/display/virtio-gpu.c

@@ -212,6 +212,8 @@ virtio_gpu_generate_edid(VirtIOGPU *g, int scanout,
 {
     VirtIOGPUBase *b = VIRTIO_GPU_BASE(g);
     qemu_edid_info info = {
+        .width_mm = b->req_state[scanout].width_mm,
+        .height_mm = b->req_state[scanout].height_mm,
         .prefx = b->req_state[scanout].width,
         .prefy = b->req_state[scanout].height,
     };

hw/display/virtio-vga.c

@@ -168,6 +168,20 @@ static void virtio_vga_base_reset(DeviceState *dev)
     vga_dirty_log_start(&vvga->vga);
 }
 
+static bool virtio_vga_get_big_endian_fb(Object *obj, Error **errp)
+{
+    VirtIOVGABase *d = VIRTIO_VGA_BASE(obj);
+
+    return d->vga.big_endian_fb;
+}
+
+static void virtio_vga_set_big_endian_fb(Object *obj, bool value, Error **errp)
+{
+    VirtIOVGABase *d = VIRTIO_VGA_BASE(obj);
+
+    d->vga.big_endian_fb = value;
+}
+
 static Property virtio_vga_base_properties[] = {
     DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
     DEFINE_PROP_END_OF_LIST(),
@@ -190,6 +204,11 @@ static void virtio_vga_base_class_init(ObjectClass *klass, void *data)
     k->realize = virtio_vga_base_realize;
     pcidev_k->romfile = "vgabios-virtio.bin";
     pcidev_k->class_id = PCI_CLASS_DISPLAY_VGA;
+
+    /* Expose framebuffer byteorder via QOM */
+    object_class_property_add_bool(klass, "big-endian-framebuffer",
+                                   virtio_vga_get_big_endian_fb,
+                                   virtio_vga_set_big_endian_fb);
 }
 
 static TypeInfo virtio_vga_base_info = {

hw/ppc/spapr_pci.c

@@ -2464,7 +2464,9 @@ static int spapr_switch_one_vga(DeviceState *dev, void *opaque)
     bool be = *(bool *)opaque;
 
     if (object_dynamic_cast(OBJECT(dev), "VGA")
-        || object_dynamic_cast(OBJECT(dev), "secondary-vga")) {
+        || object_dynamic_cast(OBJECT(dev), "secondary-vga")
+        || object_dynamic_cast(OBJECT(dev), "bochs-display")
+        || object_dynamic_cast(OBJECT(dev), "virtio-vga")) {
         object_property_set_bool(OBJECT(dev), "big-endian-framebuffer", be,
                                  &error_abort);
     }

include/hw/display/edid.h

@@ -5,7 +5,8 @@ typedef struct qemu_edid_info {
     const char *vendor; /* http://www.uefi.org/pnp_id_list */
     const char *name;
     const char *serial;
-    uint32_t    dpi;
+    uint16_t    width_mm;
+    uint16_t    height_mm;
     uint32_t    prefx;
     uint32_t    prefy;
     uint32_t    maxx;
@@ -18,6 +19,8 @@ size_t qemu_edid_size(uint8_t *edid);
 void qemu_edid_region_io(MemoryRegion *region, Object *owner,
                          uint8_t *edid, size_t size);
 
+uint32_t qemu_edid_dpi_to_mm(uint32_t dpi, uint32_t res);
+
 #define DEFINE_EDID_PROPERTIES(_state, _edid_info)              \
     DEFINE_PROP_UINT32("xres", _state, _edid_info.prefx, 0),    \
     DEFINE_PROP_UINT32("yres", _state, _edid_info.prefy, 0),    \

include/hw/virtio/virtio-gpu.h

@@ -62,6 +62,7 @@ struct virtio_gpu_scanout {
 };
 
 struct virtio_gpu_requested_state {
+    uint16_t width_mm, height_mm;
     uint32_t width, height;
     int x, y;
 };

include/ui/console.h

@@ -119,6 +119,9 @@ typedef struct DisplaySurface {
 } DisplaySurface;
 
 typedef struct QemuUIInfo {
+    /* physical dimension */
+    uint16_t width_mm;
+    uint16_t height_mm;
     /* geometry */
     int       xoff;
     int       yoff;
@@ -264,6 +267,7 @@ void update_displaychangelistener(DisplayChangeListener *dcl,
 void unregister_displaychangelistener(DisplayChangeListener *dcl);
 
 bool dpy_ui_info_supported(QemuConsole *con);
+const QemuUIInfo *dpy_get_ui_info(const QemuConsole *con);
 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info);
 
 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h);

qemu-edid.c

@@ -9,7 +9,10 @@
 #include "qemu/cutils.h"
 #include "hw/display/edid.h"
 
-static qemu_edid_info info;
+static qemu_edid_info info = (qemu_edid_info) {
+    .prefx = 1024,
+    .prefy = 768,
+};
 
 static void usage(FILE *out)
 {
@@ -39,6 +42,7 @@ int main(int argc, char *argv[])
 {
     FILE *outfile = NULL;
     uint8_t blob[256];
+    uint32_t dpi = 100;
     int rc;
 
     for (;;) {
@@ -83,7 +87,7 @@ int main(int argc, char *argv[])
             }
             break;
         case 'd':
-            if (qemu_strtoui(optarg, NULL, 10, &info.dpi) < 0) {
+            if (qemu_strtoui(optarg, NULL, 10, &dpi) < 0) {
                 fprintf(stderr, "not a number: %s\n", optarg);
                 exit(1);
             }
@@ -110,6 +114,9 @@ int main(int argc, char *argv[])
         outfile = stdout;
     }
 
+    info.width_mm = qemu_edid_dpi_to_mm(dpi, info.prefx);
+    info.height_mm = qemu_edid_dpi_to_mm(dpi, info.prefy);
+
     memset(blob, 0, sizeof(blob));
     qemu_edid_generate(blob, sizeof(blob), &info);
     fwrite(blob, sizeof(blob), 1, outfile);

ui/console.c

@@ -1516,6 +1516,13 @@ bool dpy_ui_info_supported(QemuConsole *con)
     return con->hw_ops->ui_info != NULL;
 }
 
+const QemuUIInfo *dpy_get_ui_info(const QemuConsole *con)
+{
+    assert(con != NULL);
+
+    return &con->ui_info;
+}
+
 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)
 {
     assert(con != NULL);

ui/spice-display.c

@@ -672,30 +672,19 @@ static int interface_client_monitors_config(QXLInstance *sin,
         return 1;
     }
 
-    memset(&info, 0, sizeof(info));
+    info = *dpy_get_ui_info(ssd->dcl.con);
 
-    if (mc->num_of_monitors == 1) {
-        /*
-         * New spice-server version which filters the list of monitors
-         * to only include those that belong to our display channel.
-         *
-         * single-head configuration (where filtering doesn't matter)
-         * takes this code path too.
-         */
-        info.width  = mc->monitors[0].width;
-        info.height = mc->monitors[0].height;
-    } else {
-        /*
-         * Old spice-server which gives us all monitors, so we have to
-         * figure ourself which entry we need.  Array index is the
-         * channel_id, which is the qemu console index, see
-         * qemu_spice_add_display_interface().
-         */
-        head = qemu_console_get_index(ssd->dcl.con);
-        if (mc->num_of_monitors > head) {
-            info.width  = mc->monitors[head].width;
-            info.height = mc->monitors[head].height;
+    head = qemu_console_get_index(ssd->dcl.con);
+    if (mc->num_of_monitors > head) {
+        info.width  = mc->monitors[head].width;
+        info.height = mc->monitors[head].height;
+#if SPICE_SERVER_VERSION >= 0x000e04 /* release 0.14.4 */
+        if (mc->flags & VD_AGENT_CONFIG_MONITORS_FLAG_PHYSICAL_SIZE) {
+            VDAgentMonitorMM *mm = (void *)&mc->monitors[mc->num_of_monitors];
+            info.width_mm = mm[head].width;
+            info.height_mm = mm[head].height;
         }
+#endif
     }
 
     trace_qemu_spice_ui_info(ssd->qxl.id, info.width, info.height);