[PULL 0/6] Vga 20200915 patches

[PULL 0/6] Vga 20200915 patches

[Gerd Hoffmann]

The following changes since commit 2d2c73d0e3d504a61f868e46e6abd5643f38091b:

  Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200914-1' into staging (2020-09-14 16:03:08 +0100)

are available in the Git repository at:

  git://git.kraxel.org/qemu tags/vga-20200915-pull-request

for you to fetch changes up to 7b0de5b7969e695d6235525654a8a28a0d82a0e0:

  virtio-gpu: build modular (2020-09-15 14:11:49 +0200)

----------------------------------------------------------------
vga: fix qxl modular build.
vga: add support for virtio-gpu modular builds.

----------------------------------------------------------------

Gerd Hoffmann (6):
  meson: fix qxl dependencies
  meson: fix module config
  meson: remove duplicate qxl sources
  object_initialize: try module load
  virtio-gpu: make virtio_gpu_ops static
  virtio-gpu: build modular

 include/hw/virtio/virtio-gpu.h |  3 +--
 hw/display/virtio-gpu-base.c   |  3 ++-
 hw/display/virtio-vga.c        | 16 ++++++++--------
 qom/object.c                   |  6 ++++++
 util/module.c                  |  2 ++
 hw/display/meson.build         | 27 ++++++++-------------------
 meson.build                    |  2 +-
 7 files changed, 28 insertions(+), 31 deletions(-)

-- 
2.27.0

[PULL 1/6] meson: fix qxl dependencies

[Gerd Hoffmann]

Add pixman and spice deps to qxl module.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200914134224.29769-2-kraxel@redhat.com
---
 hw/display/meson.build | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/display/meson.build b/hw/display/meson.build
index 78adaf9db463..2cc73fc2b927 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -41,7 +41,8 @@ specific_ss.add(when: 'CONFIG_VGA', if_true: files('vga.c'))
 
 if config_all_devices.has_key('CONFIG_QXL')
   qxl_ss = ss.source_set()
-  qxl_ss.add(when: 'CONFIG_QXL', if_true: files('qxl.c', 'qxl-logger.c', 'qxl-render.c'))
+  qxl_ss.add(when: 'CONFIG_QXL', if_true: [files('qxl.c', 'qxl-logger.c', 'qxl-render.c'),
+                                           pixman, spice])
   hw_display_modules += {'qxl': qxl_ss}
 endif
 
-- 
2.27.0

[PULL 2/6] meson: fix module config

[Gerd Hoffmann]

Use all config symbols not only the host ones.
Needed to make sure device configs like CONFIG_QXL
are used for modules too.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200914134224.29769-3-kraxel@redhat.com
---
 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 690723b47089..bba766b4bc66 100644
--- a/meson.build
+++ b/meson.build
@@ -913,7 +913,7 @@ softmmu_mods = []
 foreach d, list : modules
   foreach m, module_ss : list
     if enable_modules and targetos != 'windows'
-      module_ss = module_ss.apply(config_host, strict: false)
+      module_ss = module_ss.apply(config_all, strict: false)
       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
       if d == 'block'
-- 
2.27.0

[PULL 3/6] meson: remove duplicate qxl sources

[Gerd Hoffmann]

We should add sources to the softmmu_ss or module_ss but not both.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200914134224.29769-4-kraxel@redhat.com
---
 hw/display/meson.build | 2 --
 1 file changed, 2 deletions(-)

diff --git a/hw/display/meson.build b/hw/display/meson.build
index 2cc73fc2b927..2f07d427ddc8 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -46,8 +46,6 @@ if config_all_devices.has_key('CONFIG_QXL')
   hw_display_modules += {'qxl': qxl_ss}
 endif
 
-softmmu_ss.add(when: 'CONFIG_QXL', if_true: files('qxl.c', 'qxl-logger.c', 'qxl-render.c'))
-
 softmmu_ss.add(when: 'CONFIG_DPCD', if_true: files('dpcd.c'))
 softmmu_ss.add(when: 'CONFIG_XLNX_ZYNQMP_ARM', if_true: files('xlnx_dp.c'))
 
-- 
2.27.0

[PULL 4/6] object_initialize: try module load

[Gerd Hoffmann]

Needed to allow virtio-gpu-pci initialize the
virtio-gpu-device child device.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200914134224.29769-5-kraxel@redhat.com
---
 qom/object.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/qom/object.c b/qom/object.c
index b1822a2ef4be..387efb25ebe9 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -518,6 +518,12 @@ void object_initialize(void *data, size_t size, const char *typename)
 {
     TypeImpl *type = type_get_by_name(typename);
 
+#ifdef CONFIG_MODULES
+    if (!type) {
+        module_load_qom_one(typename);
+        type = type_get_by_name(typename);
+    }
+#endif
     if (!type) {
         error_report("missing object type '%s'", typename);
         abort();
-- 
2.27.0

[PULL 5/6] virtio-gpu: make virtio_gpu_ops static

[Gerd Hoffmann]

Reference it via ops pointer instead, simliar to the vga one.
Removes hard symbol reference, needed to build virtio-gpu modular.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200914134224.29769-6-kraxel@redhat.com
---
 include/hw/virtio/virtio-gpu.h |  3 +--
 hw/display/virtio-gpu-base.c   |  3 ++-
 hw/display/virtio-vga.c        | 16 ++++++++--------
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index f334b780858c..6b45b4799a3e 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -106,6 +106,7 @@ struct VirtIOGPUBase {
 
     struct virtio_gpu_base_conf conf;
     struct virtio_gpu_config virtio_config;
+    const GraphicHwOps *hw_ops;
 
     bool use_virgl_renderer;
     int renderer_blocked;
@@ -171,8 +172,6 @@ struct VhostUserGPU {
     bool backend_blocked;
 };
 
-extern const GraphicHwOps virtio_gpu_ops;
-
 #define VIRTIO_GPU_FILL_CMD(out) do {                                   \
         size_t s;                                                       \
         s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 0,          \
diff --git a/hw/display/virtio-gpu-base.c b/hw/display/virtio-gpu-base.c
index 796130860657..aeb87235420a 100644
--- a/hw/display/virtio-gpu-base.c
+++ b/hw/display/virtio-gpu-base.c
@@ -112,7 +112,7 @@ virtio_gpu_gl_block(void *opaque, bool block)
     }
 }
 
-const GraphicHwOps virtio_gpu_ops = {
+static const GraphicHwOps virtio_gpu_ops = {
     .invalidate = virtio_gpu_invalidate_display,
     .gfx_update = virtio_gpu_update_display,
     .text_update = virtio_gpu_text_update,
@@ -162,6 +162,7 @@ virtio_gpu_base_device_realize(DeviceState *qdev,
     g->req_state[0].width = g->conf.xres;
     g->req_state[0].height = g->conf.yres;
 
+    g->hw_ops = &virtio_gpu_ops;
     for (i = 0; i < g->conf.max_outputs; i++) {
         g->scanout[i].con =
             graphic_console_init(DEVICE(g), i, &virtio_gpu_ops, g);
diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c
index 573e7d59282a..f9410a0c2e61 100644
--- a/hw/display/virtio-vga.c
+++ b/hw/display/virtio-vga.c
@@ -13,7 +13,7 @@ static void virtio_vga_base_invalidate_display(void *opaque)
     VirtIOGPUBase *g = vvga->vgpu;
 
     if (g->enable) {
-        virtio_gpu_ops.invalidate(g);
+        g->hw_ops->invalidate(g);
     } else {
         vvga->vga.hw_ops->invalidate(&vvga->vga);
     }
@@ -25,7 +25,7 @@ static void virtio_vga_base_update_display(void *opaque)
     VirtIOGPUBase *g = vvga->vgpu;
 
     if (g->enable) {
-        virtio_gpu_ops.gfx_update(g);
+        g->hw_ops->gfx_update(g);
     } else {
         vvga->vga.hw_ops->gfx_update(&vvga->vga);
     }
@@ -37,8 +37,8 @@ static void virtio_vga_base_text_update(void *opaque, console_ch_t *chardata)
     VirtIOGPUBase *g = vvga->vgpu;
 
     if (g->enable) {
-        if (virtio_gpu_ops.text_update) {
-            virtio_gpu_ops.text_update(g, chardata);
+        if (g->hw_ops->text_update) {
+            g->hw_ops->text_update(g, chardata);
         }
     } else {
         if (vvga->vga.hw_ops->text_update) {
@@ -52,8 +52,8 @@ static int virtio_vga_base_ui_info(void *opaque, uint32_t idx, QemuUIInfo *info)
     VirtIOVGABase *vvga = opaque;
     VirtIOGPUBase *g = vvga->vgpu;
 
-    if (virtio_gpu_ops.ui_info) {
-        return virtio_gpu_ops.ui_info(g, idx, info);
+    if (g->hw_ops->ui_info) {
+        return g->hw_ops->ui_info(g, idx, info);
     }
     return -1;
 }
@@ -63,8 +63,8 @@ static void virtio_vga_base_gl_block(void *opaque, bool block)
     VirtIOVGABase *vvga = opaque;
     VirtIOGPUBase *g = vvga->vgpu;
 
-    if (virtio_gpu_ops.gl_block) {
-        virtio_gpu_ops.gl_block(g, block);
+    if (g->hw_ops->gl_block) {
+        g->hw_ops->gl_block(g, block);
     }
 }
 
-- 
2.27.0

[PULL 6/6] virtio-gpu: build modular

[Gerd Hoffmann]

Only build virtio-gpu-device modular (the code which actually depends on
the external virglrenderer library).  virtio-gpu-pci and virtio-vga are
compiled into core qemu still.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200914134224.29769-7-kraxel@redhat.com
---
 util/module.c          |  2 ++
 hw/display/meson.build | 22 ++++++----------------
 2 files changed, 8 insertions(+), 16 deletions(-)

diff --git a/util/module.c b/util/module.c
index 6e63006a8fb2..34772e7d87eb 100644
--- a/util/module.c
+++ b/util/module.c
@@ -265,6 +265,8 @@ static struct {
     { "usb-redir",             "hw-", "usb-redirect"          },
     { "qxl-vga",               "hw-", "display-qxl"           },
     { "qxl",                   "hw-", "display-qxl"           },
+    { "virtio-gpu-device",     "hw-", "display-virtio-gpu"    },
+    { "vhost-user-gpu",        "hw-", "display-virtio-gpu"    },
     { "chardev-braille",       "chardev-", "baum"             },
 };
 
diff --git a/hw/display/meson.build b/hw/display/meson.build
index 2f07d427ddc8..0d5ddecd6503 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -59,24 +59,14 @@ if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
   virtio_gpu_ss.add(when: 'CONFIG_VIRTIO_GPU',
                     if_true: [files('virtio-gpu-base.c', 'virtio-gpu.c', 'virtio-gpu-3d.c'), pixman, virgl])
   virtio_gpu_ss.add(when: 'CONFIG_VHOST_USER_GPU', if_true: files('vhost-user-gpu.c'))
-  virtio_gpu_ss.add(when: ['CONFIG_VIRTIO_GPU', 'CONFIG_VIRTIO_PCI'], if_true: files('virtio-gpu-pci.c'))
-  virtio_gpu_ss.add(when: ['CONFIG_VHOST_USER_GPU', 'CONFIG_VIRTIO_PCI'], if_true: files('vhost-user-gpu-pci.c'))
-  virtio_gpu_ss.add(when: 'CONFIG_VIRTIO_VGA', if_true: files('virtio-vga.c'))
-  virtio_gpu_ss.add(when: 'CONFIG_VHOST_USER_VGA', if_true: files('vhost-user-vga.c'))
-
-  # FIXME: this was attempted in the Makefile build system; it was then reverted
-  # as it would try to load all devices when the module is loaded, even if
-  # config_devices for this target only has some of them.  Since virtio-gpu-pci
-  # and virtio-vga both instantiate a virtio-gpu-device, fixing it probably does
-  # not even require a dependency system, just splitting the module in three
-  # for CONFIG_VIRTIO_GPU/CONFIG_VHOST_USER_GPU, CONFIG_VIRTIO_PCI and
-  # CONFIG_VIRTIO_VGA/CONFIG_VHOST_USER_VGA.
-  # Sourcesets are a dime a dozen, so keep it and just disable module builds.
-
-  #hw_display_modules += {'virtio-gpu': virtio_gpu_ss}
-  softmmu_ss.add_all(virtio_gpu_ss)
+  hw_display_modules += {'virtio-gpu': virtio_gpu_ss}
 endif
 
+softmmu_ss.add(when: ['CONFIG_VIRTIO_GPU', 'CONFIG_VIRTIO_PCI'], if_true: files('virtio-gpu-pci.c'))
+softmmu_ss.add(when: ['CONFIG_VHOST_USER_GPU', 'CONFIG_VIRTIO_PCI'], if_true: files('vhost-user-gpu-pci.c'))
+softmmu_ss.add(when: 'CONFIG_VIRTIO_VGA', if_true: files('virtio-vga.c'))
+softmmu_ss.add(when: 'CONFIG_VHOST_USER_VGA', if_true: files('vhost-user-vga.c'))
+
 specific_ss.add(when: [x11, opengl, 'CONFIG_MILKYMIST_TMU2'], if_true: files('milkymist-tmu2.c'))
 specific_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_lcdc.c'))
 
-- 
2.27.0

Re: [PULL 0/6] Vga 20200915 patches

[Peter Maydell]

On Tue, 15 Sep 2020 at 14:21, Gerd Hoffmann <kraxel@redhat.com> wrote:
>
> The following changes since commit 2d2c73d0e3d504a61f868e46e6abd5643f38091b:
>
>   Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200914-1' into staging (2020-09-14 16:03:08 +0100)
>
> are available in the Git repository at:
>
>   git://git.kraxel.org/qemu tags/vga-20200915-pull-request
>
> for you to fetch changes up to 7b0de5b7969e695d6235525654a8a28a0d82a0e0:
>
>   virtio-gpu: build modular (2020-09-15 14:11:49 +0200)
>
> ----------------------------------------------------------------
> vga: fix qxl modular build.
> vga: add support for virtio-gpu modular builds.
>
> ----------------------------------------------------------------
>
> Gerd Hoffmann (6):
>   meson: fix qxl dependencies
>   meson: fix module config
>   meson: remove duplicate qxl sources
>   object_initialize: try module load
>   virtio-gpu: make virtio_gpu_ops static
>   virtio-gpu: build modular


Applied, thanks.

Please update the changelog at https://wiki.qemu.org/ChangeLog/5.2
for any user-visible changes.

-- PMM