From: Robert Beckett <bob.beckett@collabora.com>
Support displaying blob resources by handling SET_SCANOUT_BLOB
command.
Signed-by: Antonio Caggiano <antonio.caggiano@collabora.com>
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
---
hw/display/virtio-gpu-virgl.c | 109 +++++++++++++++++++++++++++++++++
hw/display/virtio-gpu.c | 12 ++--
include/hw/virtio/virtio-gpu.h | 7 +++
meson.build | 1 +
4 files changed, 123 insertions(+), 6 deletions(-)
diff --git a/hw/display/virtio-gpu-virgl.c b/hw/display/virtio-gpu-virgl.c
index 8392d0fde984..7f45b4fa5fd7 100644
--- a/hw/display/virtio-gpu-virgl.c
+++ b/hw/display/virtio-gpu-virgl.c
@@ -17,6 +17,8 @@
#include "trace.h"
#include "hw/virtio/virtio.h"
#include "hw/virtio/virtio-gpu.h"
+#include "hw/virtio/virtio-gpu-bswap.h"
+#include "hw/virtio/virtio-gpu-pixman.h"
#include "ui/egl-helpers.h"
@@ -78,6 +80,7 @@ static void virgl_cmd_create_resource_2d(VirtIOGPU *g,
res->base.height = c2d.height;
res->base.format = c2d.format;
res->base.resource_id = c2d.resource_id;
+ res->base.dmabuf_fd = -1;
QTAILQ_INSERT_HEAD(&g->reslist, &res->base, next);
args.handle = c2d.resource_id;
@@ -125,6 +128,7 @@ static void virgl_cmd_create_resource_3d(VirtIOGPU *g,
res->base.height = c3d.height;
res->base.format = c3d.format;
res->base.resource_id = c3d.resource_id;
+ res->base.dmabuf_fd = -1;
QTAILQ_INSERT_HEAD(&g->reslist, &res->base, next);
args.handle = c3d.resource_id;
@@ -509,6 +513,106 @@ static void virgl_cmd_get_capset(VirtIOGPU *g,
g_free(resp);
}
+#ifdef HAVE_VIRGL_RESOURCE_BLOB
+static void virgl_cmd_set_scanout_blob(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ struct virtio_gpu_framebuffer fb = { 0 };
+ struct virgl_renderer_resource_info info;
+ struct virtio_gpu_virgl_resource *res;
+ struct virtio_gpu_set_scanout_blob ss;
+ uint64_t fbend;
+
+ VIRTIO_GPU_FILL_CMD(ss);
+ virtio_gpu_scanout_blob_bswap(&ss);
+ trace_virtio_gpu_cmd_set_scanout_blob(ss.scanout_id, ss.resource_id,
+ ss.r.width, ss.r.height, ss.r.x,
+ ss.r.y);
+
+ if (ss.scanout_id >= g->parent_obj.conf.max_outputs) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d",
+ __func__, ss.scanout_id);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID;
+ return;
+ }
+
+ if (ss.resource_id == 0) {
+ virtio_gpu_disable_scanout(g, ss.scanout_id);
+ return;
+ }
+
+ if (ss.width < 16 ||
+ ss.height < 16 ||
+ ss.r.x + ss.r.width > ss.width ||
+ ss.r.y + ss.r.height > ss.height) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout %d bounds for"
+ " resource %d, rect (%d,%d)+%d,%d, fb %d %d\n",
+ __func__, ss.scanout_id, ss.resource_id,
+ ss.r.x, ss.r.y, ss.r.width, ss.r.height,
+ ss.width, ss.height);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
+ return;
+ }
+
+ res = virtio_gpu_virgl_find_resource(g, ss.resource_id);
+ if (!res) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: resource does not exist %d\n",
+ __func__, ss.resource_id);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
+ return;
+ }
+ if (virgl_renderer_resource_get_info(ss.resource_id, &info)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: resource does not have info %d\n",
+ __func__, ss.resource_id);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
+ return;
+ }
+ if (res->base.dmabuf_fd < 0) {
+ res->base.dmabuf_fd = info.fd;
+ }
+ if (res->base.dmabuf_fd < 0) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: resource not backed by dmabuf %d\n",
+ __func__, ss.resource_id);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
+ return;
+ }
+
+ fb.format = virtio_gpu_get_pixman_format(ss.format);
+ if (!fb.format) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: pixel format not supported %d\n",
+ __func__, ss.format);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
+ return;
+ }
+
+ fb.bytes_pp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(fb.format), 8);
+ fb.width = ss.width;
+ fb.height = ss.height;
+ fb.stride = ss.strides[0];
+ fb.offset = ss.offsets[0] + ss.r.x * fb.bytes_pp + ss.r.y * fb.stride;
+
+ fbend = fb.offset;
+ fbend += fb.stride * (ss.r.height - 1);
+ fbend += fb.bytes_pp * ss.r.width;
+ if (fbend > res->base.blob_size) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: fb end out of range\n",
+ __func__);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
+ return;
+ }
+
+ g->parent_obj.enable = 1;
+ if (virtio_gpu_update_dmabuf(g, ss.scanout_id, &res->base, &fb, &ss.r)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to update dmabuf\n",
+ __func__);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
+ return;
+ }
+
+ virtio_gpu_update_scanout(g, ss.scanout_id, &res->base, &fb, &ss.r);
+}
+#endif /* HAVE_VIRGL_RESOURCE_BLOB */
+
void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd)
{
@@ -575,6 +679,11 @@ void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
case VIRTIO_GPU_CMD_GET_EDID:
virtio_gpu_get_edid(g, cmd);
break;
+#ifdef HAVE_VIRGL_RESOURCE_BLOB
+ case VIRTIO_GPU_CMD_SET_SCANOUT_BLOB:
+ virgl_cmd_set_scanout_blob(g, cmd);
+ break;
+#endif /* HAVE_VIRGL_RESOURCE_BLOB */
default:
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
break;
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index 672279e57f3f..f3d2def9a49f 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -380,7 +380,7 @@ static void virtio_gpu_resource_create_blob(VirtIOGPU *g,
QTAILQ_INSERT_HEAD(&g->reslist, res, next);
}
-static void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id)
+void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id)
{
struct virtio_gpu_scanout *scanout = &g->parent_obj.scanout[scanout_id];
struct virtio_gpu_simple_resource *res;
@@ -597,11 +597,11 @@ static void virtio_unref_resource(pixman_image_t *image, void *data)
pixman_image_unref(data);
}
-static void virtio_gpu_update_scanout(VirtIOGPU *g,
- uint32_t scanout_id,
- struct virtio_gpu_simple_resource *res,
- struct virtio_gpu_framebuffer *fb,
- struct virtio_gpu_rect *r)
+void virtio_gpu_update_scanout(VirtIOGPU *g,
+ uint32_t scanout_id,
+ struct virtio_gpu_simple_resource *res,
+ struct virtio_gpu_framebuffer *fb,
+ struct virtio_gpu_rect *r)
{
struct virtio_gpu_simple_resource *ores;
struct virtio_gpu_scanout *scanout;
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index 2faeda6f6abe..0bfdfd91db46 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -338,6 +338,13 @@ int virtio_gpu_update_dmabuf(VirtIOGPU *g,
struct virtio_gpu_framebuffer *fb,
struct virtio_gpu_rect *r);
+void virtio_gpu_update_scanout(VirtIOGPU *g,
+ uint32_t scanout_id,
+ struct virtio_gpu_simple_resource *res,
+ struct virtio_gpu_framebuffer *fb,
+ struct virtio_gpu_rect *r);
+void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id);
+
/* virtio-gpu-3d.c */
void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd);
diff --git a/meson.build b/meson.build
index 65fddfbbc3a7..e753da4c76c3 100644
--- a/meson.build
+++ b/meson.build
@@ -2311,6 +2311,7 @@ config_host_data.set('CONFIG_VNC_SASL', sasl.found())
if virgl.version().version_compare('>=1.0.0')
config_host_data.set('HAVE_VIRGL_D3D_INFO_EXT', 1)
config_host_data.set('HAVE_VIRGL_CONTEXT_CREATE_WITH_FLAGS', 1)
+ config_host_data.set('HAVE_VIRGL_RESOURCE_BLOB', 1)
endif
config_host_data.set('CONFIG_VIRTFS', have_virtfs)
config_host_data.set('CONFIG_VTE', vte.found())
--
2.44.0Hi
On Mon, May 27, 2024 at 7:03 AM Dmitry Osipenko <
dmitry.osipenko@collabora.com> wrote:
> From: Robert Beckett <bob.beckett@collabora.com>
>
> Support displaying blob resources by handling SET_SCANOUT_BLOB
> command.
>
> Signed-by: Antonio Caggiano <antonio.caggiano@collabora.com>
> Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
> Signed-off-by: Huang Rui <ray.huang@amd.com>
> Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
> ---
> hw/display/virtio-gpu-virgl.c | 109 +++++++++++++++++++++++++++++++++
> hw/display/virtio-gpu.c | 12 ++--
> include/hw/virtio/virtio-gpu.h | 7 +++
> meson.build | 1 +
> 4 files changed, 123 insertions(+), 6 deletions(-)
>
> diff --git a/hw/display/virtio-gpu-virgl.c b/hw/display/virtio-gpu-virgl.c
> index 8392d0fde984..7f45b4fa5fd7 100644
> --- a/hw/display/virtio-gpu-virgl.c
> +++ b/hw/display/virtio-gpu-virgl.c
> @@ -17,6 +17,8 @@
> #include "trace.h"
> #include "hw/virtio/virtio.h"
> #include "hw/virtio/virtio-gpu.h"
> +#include "hw/virtio/virtio-gpu-bswap.h"
> +#include "hw/virtio/virtio-gpu-pixman.h"
>
> #include "ui/egl-helpers.h"
>
> @@ -78,6 +80,7 @@ static void virgl_cmd_create_resource_2d(VirtIOGPU *g,
> res->base.height = c2d.height;
> res->base.format = c2d.format;
> res->base.resource_id = c2d.resource_id;
> + res->base.dmabuf_fd = -1;
> QTAILQ_INSERT_HEAD(&g->reslist, &res->base, next);
>
> args.handle = c2d.resource_id;
> @@ -125,6 +128,7 @@ static void virgl_cmd_create_resource_3d(VirtIOGPU *g,
> res->base.height = c3d.height;
> res->base.format = c3d.format;
> res->base.resource_id = c3d.resource_id;
> + res->base.dmabuf_fd = -1;
> QTAILQ_INSERT_HEAD(&g->reslist, &res->base, next);
>
> args.handle = c3d.resource_id;
> @@ -509,6 +513,106 @@ static void virgl_cmd_get_capset(VirtIOGPU *g,
> g_free(resp);
> }
>
> +#ifdef HAVE_VIRGL_RESOURCE_BLOB
> +static void virgl_cmd_set_scanout_blob(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command
> *cmd)
> +{
> + struct virtio_gpu_framebuffer fb = { 0 };
> + struct virgl_renderer_resource_info info;
> + struct virtio_gpu_virgl_resource *res;
> + struct virtio_gpu_set_scanout_blob ss;
> + uint64_t fbend;
> +
> + VIRTIO_GPU_FILL_CMD(ss);
> + virtio_gpu_scanout_blob_bswap(&ss);
> + trace_virtio_gpu_cmd_set_scanout_blob(ss.scanout_id, ss.resource_id,
> + ss.r.width, ss.r.height, ss.r.x,
> + ss.r.y);
> +
> + if (ss.scanout_id >= g->parent_obj.conf.max_outputs) {
> + qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified
> %d",
> + __func__, ss.scanout_id);
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID;
> + return;
> + }
> +
> + if (ss.resource_id == 0) {
> + virtio_gpu_disable_scanout(g, ss.scanout_id);
> + return;
> + }
> +
> + if (ss.width < 16 ||
> + ss.height < 16 ||
> + ss.r.x + ss.r.width > ss.width ||
> + ss.r.y + ss.r.height > ss.height) {
> + qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout %d bounds for"
> + " resource %d, rect (%d,%d)+%d,%d, fb %d %d\n",
> + __func__, ss.scanout_id, ss.resource_id,
> + ss.r.x, ss.r.y, ss.r.width, ss.r.height,
> + ss.width, ss.height);
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
> + return;
> + }
> +
> + res = virtio_gpu_virgl_find_resource(g, ss.resource_id);
> + if (!res) {
> + qemu_log_mask(LOG_GUEST_ERROR, "%s: resource does not exist %d\n",
> + __func__, ss.resource_id);
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
> + return;
> + }
> + if (virgl_renderer_resource_get_info(ss.resource_id, &info)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "%s: resource does not have info
> %d\n",
> + __func__, ss.resource_id);
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
> + return;
> + }
> + if (res->base.dmabuf_fd < 0) {
> + res->base.dmabuf_fd = info.fd;
> + }
> + if (res->base.dmabuf_fd < 0) {
> + qemu_log_mask(LOG_GUEST_ERROR, "%s: resource not backed by dmabuf
> %d\n",
> + __func__, ss.resource_id);
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
> + return;
> + }
> +
> + fb.format = virtio_gpu_get_pixman_format(ss.format);
> + if (!fb.format) {
> + qemu_log_mask(LOG_GUEST_ERROR, "%s: pixel format not supported
> %d\n",
> + __func__, ss.format);
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
> + return;
> + }
> +
> + fb.bytes_pp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(fb.format), 8);
> + fb.width = ss.width;
> + fb.height = ss.height;
> + fb.stride = ss.strides[0];
> + fb.offset = ss.offsets[0] + ss.r.x * fb.bytes_pp + ss.r.y * fb.stride;
> +
> + fbend = fb.offset;
> + fbend += fb.stride * (ss.r.height - 1);
> + fbend += fb.bytes_pp * ss.r.width;
> + if (fbend > res->base.blob_size) {
> + qemu_log_mask(LOG_GUEST_ERROR, "%s: fb end out of range\n",
> + __func__);
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
> + return;
> + }
> +
> + g->parent_obj.enable = 1;
> + if (virtio_gpu_update_dmabuf(g, ss.scanout_id, &res->base, &fb,
> &ss.r)) {
> + qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to update dmabuf\n",
> + __func__);
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
> + return;
> + }
> +
> + virtio_gpu_update_scanout(g, ss.scanout_id, &res->base, &fb, &ss.r);
> +}
> +#endif /* HAVE_VIRGL_RESOURCE_BLOB */
> +
> void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
> struct virtio_gpu_ctrl_command *cmd)
> {
> @@ -575,6 +679,11 @@ void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
> case VIRTIO_GPU_CMD_GET_EDID:
> virtio_gpu_get_edid(g, cmd);
> break;
> +#ifdef HAVE_VIRGL_RESOURCE_BLOB
> + case VIRTIO_GPU_CMD_SET_SCANOUT_BLOB:
> + virgl_cmd_set_scanout_blob(g, cmd);
> + break;
> +#endif /* HAVE_VIRGL_RESOURCE_BLOB */
> default:
> cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
> break;
> diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
> index 672279e57f3f..f3d2def9a49f 100644
> --- a/hw/display/virtio-gpu.c
> +++ b/hw/display/virtio-gpu.c
> @@ -380,7 +380,7 @@ static void virtio_gpu_resource_create_blob(VirtIOGPU
> *g,
> QTAILQ_INSERT_HEAD(&g->reslist, res, next);
> }
>
> -static void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id)
> +void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id)
> {
> struct virtio_gpu_scanout *scanout =
> &g->parent_obj.scanout[scanout_id];
> struct virtio_gpu_simple_resource *res;
> @@ -597,11 +597,11 @@ static void virtio_unref_resource(pixman_image_t
> *image, void *data)
> pixman_image_unref(data);
> }
>
> -static void virtio_gpu_update_scanout(VirtIOGPU *g,
> - uint32_t scanout_id,
> - struct virtio_gpu_simple_resource
> *res,
> - struct virtio_gpu_framebuffer *fb,
> - struct virtio_gpu_rect *r)
> +void virtio_gpu_update_scanout(VirtIOGPU *g,
> + uint32_t scanout_id,
> + struct virtio_gpu_simple_resource *res,
> + struct virtio_gpu_framebuffer *fb,
> + struct virtio_gpu_rect *r)
> {
> struct virtio_gpu_simple_resource *ores;
> struct virtio_gpu_scanout *scanout;
> diff --git a/include/hw/virtio/virtio-gpu.h
> b/include/hw/virtio/virtio-gpu.h
> index 2faeda6f6abe..0bfdfd91db46 100644
> --- a/include/hw/virtio/virtio-gpu.h
> +++ b/include/hw/virtio/virtio-gpu.h
> @@ -338,6 +338,13 @@ int virtio_gpu_update_dmabuf(VirtIOGPU *g,
> struct virtio_gpu_framebuffer *fb,
> struct virtio_gpu_rect *r);
>
> +void virtio_gpu_update_scanout(VirtIOGPU *g,
> + uint32_t scanout_id,
> + struct virtio_gpu_simple_resource *res,
> + struct virtio_gpu_framebuffer *fb,
> + struct virtio_gpu_rect *r);
> +void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id);
> +
> /* virtio-gpu-3d.c */
> void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
> struct virtio_gpu_ctrl_command *cmd);
> diff --git a/meson.build b/meson.build
> index 65fddfbbc3a7..e753da4c76c3 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -2311,6 +2311,7 @@ config_host_data.set('CONFIG_VNC_SASL', sasl.found())
> if virgl.version().version_compare('>=1.0.0')
> config_host_data.set('HAVE_VIRGL_D3D_INFO_EXT', 1)
> config_host_data.set('HAVE_VIRGL_CONTEXT_CREATE_WITH_FLAGS', 1)
> + config_host_data.set('HAVE_VIRGL_RESOURCE_BLOB', 1)
>
Instead of accumulating various #define values, we could simply have
HAVE_VIRGL1 or something..
Alternatively, virgl.version().version_compare('>=1.0.1') and use #if
VIRGL_MAJOR_VERSION >= 1 in the code.
(the VIRGL_CHECK_VERSION macro is borked, it needs a 1.0.2 release)
--
Marc-André Lureau
© 2016 - 2026 Red Hat, Inc.