Merge tag 'gpu-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

virtio-gpu rutabaga support

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# gpg: Signature made Mon 16 Oct 2023 09:50:14 EDT
# gpg:                using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg:                issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* tag 'gpu-pull-request' of https://gitlab.com/marcandre.lureau/qemu:
  docs/system: add basic virtio-gpu documentation
  gfxstream + rutabaga: enable rutabaga
  gfxstream + rutabaga: meson support
  gfxstream + rutabaga: add initial support for gfxstream
  gfxstream + rutabaga prep: added need defintions, fields, and options
  virtio-gpu: blob prep
  virtio-gpu: hostmem
  virtio-gpu: CONTEXT_INIT feature
  virtio: Add shared memory capability

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

diff --cc include/hw/virtio/virtio-gpu.h
index 4739fa4689422e964064cdcf3dbc94e04dc1e27c,39018377d2128cc5e9e9bde40fcaaeeb5b72fc21..584ba2ed734c6bf97f13b14c6981879561ca2710
--- 1/include/hw/virtio/virtio-gpu.h
--- 2/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@@ -224,14 -238,35 +238,35 @@@ struct VhostUserGPU 
      bool backend_blocked;
  };
  
+ #define MAX_SLOTS 4096
+ 
+ struct MemoryRegionInfo {
+     int used;
+     MemoryRegion mr;
+     uint32_t resource_id;
+ };
+ 
+ struct rutabaga;
+ 
+ struct VirtIOGPURutabaga {
+     VirtIOGPU parent_obj;
+     struct MemoryRegionInfo memory_regions[MAX_SLOTS];
+     uint64_t capset_mask;
+     char *wayland_socket_path;
+     char *wsi;
+     bool headless;
+     uint32_t num_capsets;
+     struct rutabaga *rutabaga;
+ };
+ 
  #define VIRTIO_GPU_FILL_CMD(out) do {                                   \
 -        size_t s;                                                       \
 -        s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 0,          \
 +        size_t virtiogpufillcmd_s_ =                                    \
 +            iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 0,          \
                         &out, sizeof(out));                              \
 -        if (s != sizeof(out)) {                                         \
 +        if (virtiogpufillcmd_s_ != sizeof(out)) {                       \
              qemu_log_mask(LOG_GUEST_ERROR,                              \
                            "%s: command size incorrect %zu vs %zu\n",    \
 -                          __func__, s, sizeof(out));                    \
 +                          __func__, virtiogpufillcmd_s_, sizeof(out));  \
              return;                                                     \
          }                                                               \
      } while (0)