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-rw-r--r--contrib/vhost-user-gpu/vhost-user-gpu.c29
-rw-r--r--contrib/vhost-user-gpu/virgl.c20
-rw-r--r--contrib/vhost-user-gpu/vugpu.h2
-rw-r--r--hw/display/meson.build1
-rw-r--r--hw/display/qxl.c2
-rw-r--r--hw/display/trace-events2
-rw-r--r--hw/display/virtio-gpu-base.c3
-rw-r--r--hw/display/virtio-gpu-udmabuf.c223
-rw-r--r--hw/display/virtio-gpu-virgl.c3
-rw-r--r--hw/display/virtio-gpu.c431
-rw-r--r--include/hw/virtio/virtio-gpu-bswap.h16
-rw-r--r--include/hw/virtio/virtio-gpu.h39
-rw-r--r--include/standard-headers/linux/udmabuf.h32
-rw-r--r--include/ui/console.h3
-rw-r--r--include/ui/qemu-pixman.h1
-rw-r--r--meson.build2
-rwxr-xr-xscripts/update-linux-headers.sh3
-rw-r--r--stubs/meson.build1
-rw-r--r--stubs/virtio-gpu-udmabuf.c27
-rw-r--r--ui/meson.build1
-rw-r--r--ui/qemu-pixman.c35
-rw-r--r--ui/udmabuf.c40
22 files changed, 799 insertions, 117 deletions
diff --git a/contrib/vhost-user-gpu/vhost-user-gpu.c b/contrib/vhost-user-gpu/vhost-user-gpu.c
index f73f292c9f..6dc6a44f4e 100644
--- a/contrib/vhost-user-gpu/vhost-user-gpu.c
+++ b/contrib/vhost-user-gpu/vhost-user-gpu.c
@@ -49,6 +49,8 @@ static char *opt_render_node;
static gboolean opt_virgl;
static void vg_handle_ctrl(VuDev *dev, int qidx);
+static void vg_cleanup_mapping(VuGpu *g,
+ struct virtio_gpu_simple_resource *res);
static const char *
vg_cmd_to_string(int cmd)
@@ -349,6 +351,7 @@ vg_resource_create_2d(VuGpu *g,
g_critical("%s: resource creation failed %d %d %d",
__func__, c2d.resource_id, c2d.width, c2d.height);
g_free(res);
+ vugbm_buffer_destroy(&res->buffer);
cmd->error = VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY;
return;
}
@@ -399,6 +402,7 @@ vg_resource_destroy(VuGpu *g,
}
vugbm_buffer_destroy(&res->buffer);
+ vg_cleanup_mapping(g, res);
pixman_image_unref(res->image);
QTAILQ_REMOVE(&g->reslist, res, next);
g_free(res);
@@ -488,6 +492,11 @@ vg_resource_attach_backing(VuGpu *g,
return;
}
+ if (res->iov) {
+ cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
+ return;
+ }
+
ret = vg_create_mapping_iov(g, &ab, cmd, &res->iov);
if (ret != 0) {
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
@@ -497,6 +506,22 @@ vg_resource_attach_backing(VuGpu *g,
res->iov_cnt = ab.nr_entries;
}
+/* Though currently only free iov, maybe later will do more work. */
+void vg_cleanup_mapping_iov(VuGpu *g,
+ struct iovec *iov, uint32_t count)
+{
+ g_free(iov);
+}
+
+static void
+vg_cleanup_mapping(VuGpu *g,
+ struct virtio_gpu_simple_resource *res)
+{
+ vg_cleanup_mapping_iov(g, res->iov, res->iov_cnt);
+ res->iov = NULL;
+ res->iov_cnt = 0;
+}
+
static void
vg_resource_detach_backing(VuGpu *g,
struct virtio_gpu_ctrl_command *cmd)
@@ -515,9 +540,7 @@ vg_resource_detach_backing(VuGpu *g,
return;
}
- g_free(res->iov);
- res->iov = NULL;
- res->iov_cnt = 0;
+ vg_cleanup_mapping(g, res);
}
static void
diff --git a/contrib/vhost-user-gpu/virgl.c b/contrib/vhost-user-gpu/virgl.c
index 9e6660c7ab..3e45e1bd33 100644
--- a/contrib/vhost-user-gpu/virgl.c
+++ b/contrib/vhost-user-gpu/virgl.c
@@ -108,9 +108,17 @@ virgl_cmd_resource_unref(VuGpu *g,
struct virtio_gpu_ctrl_command *cmd)
{
struct virtio_gpu_resource_unref unref;
+ struct iovec *res_iovs = NULL;
+ int num_iovs = 0;
VUGPU_FILL_CMD(unref);
+ virgl_renderer_resource_detach_iov(unref.resource_id,
+ &res_iovs,
+ &num_iovs);
+ if (res_iovs != NULL && num_iovs != 0) {
+ vg_cleanup_mapping_iov(g, res_iovs, num_iovs);
+ }
virgl_renderer_resource_unref(unref.resource_id);
}
@@ -128,6 +136,7 @@ virgl_cmd_get_capset_info(VuGpu *g,
VUGPU_FILL_CMD(info);
+ memset(&resp, 0, sizeof(resp));
if (info.capset_index == 0) {
resp.capset_id = VIRTIO_GPU_CAPSET_VIRGL;
virgl_renderer_get_cap_set(resp.capset_id,
@@ -169,6 +178,10 @@ virgl_cmd_get_capset(VuGpu *g,
virgl_renderer_get_cap_set(gc.capset_id, &max_ver,
&max_size);
+ if (!max_size) {
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
+ return;
+ }
resp = g_malloc0(sizeof(*resp) + max_size);
resp->hdr.type = VIRTIO_GPU_RESP_OK_CAPSET;
@@ -279,8 +292,11 @@ virgl_resource_attach_backing(VuGpu *g,
return;
}
- virgl_renderer_resource_attach_iov(att_rb.resource_id,
+ ret = virgl_renderer_resource_attach_iov(att_rb.resource_id,
res_iovs, att_rb.nr_entries);
+ if (ret != 0) {
+ vg_cleanup_mapping_iov(g, res_iovs, att_rb.nr_entries);
+ }
}
static void
@@ -299,7 +315,7 @@ virgl_resource_detach_backing(VuGpu *g,
if (res_iovs == NULL || num_iovs == 0) {
return;
}
- g_free(res_iovs);
+ vg_cleanup_mapping_iov(g, res_iovs, num_iovs);
}
static void
diff --git a/contrib/vhost-user-gpu/vugpu.h b/contrib/vhost-user-gpu/vugpu.h
index 04d5615812..e2864bba68 100644
--- a/contrib/vhost-user-gpu/vugpu.h
+++ b/contrib/vhost-user-gpu/vugpu.h
@@ -169,7 +169,7 @@ int vg_create_mapping_iov(VuGpu *g,
struct virtio_gpu_resource_attach_backing *ab,
struct virtio_gpu_ctrl_command *cmd,
struct iovec **iov);
-
+void vg_cleanup_mapping_iov(VuGpu *g, struct iovec *iov, uint32_t count);
void vg_get_display_info(VuGpu *vg, struct virtio_gpu_ctrl_command *cmd);
void vg_wait_ok(VuGpu *g);
diff --git a/hw/display/meson.build b/hw/display/meson.build
index aaf797c5e9..e1f473c1df 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -56,6 +56,7 @@ if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
virtio_gpu_ss = ss.source_set()
virtio_gpu_ss.add(when: 'CONFIG_VIRTIO_GPU',
if_true: [files('virtio-gpu-base.c', 'virtio-gpu.c'), pixman])
+ virtio_gpu_ss.add(when: 'CONFIG_LINUX', if_true: files('virtio-gpu-udmabuf.c'))
virtio_gpu_ss.add(when: 'CONFIG_VHOST_USER_GPU', if_true: files('vhost-user-gpu.c'))
hw_display_modules += {'virtio-gpu': virtio_gpu_ss}
diff --git a/hw/display/qxl.c b/hw/display/qxl.c
index 2ba75637ec..6e1f8ff1b2 100644
--- a/hw/display/qxl.c
+++ b/hw/display/qxl.c
@@ -321,7 +321,7 @@ static ram_addr_t qxl_rom_size(void)
#define QXL_ROM_SZ 8192
QEMU_BUILD_BUG_ON(QXL_REQUIRED_SZ > QXL_ROM_SZ);
- return QXL_ROM_SZ;
+ return QEMU_ALIGN_UP(QXL_REQUIRED_SZ, qemu_real_host_page_size);
}
static void init_qxl_rom(PCIQXLDevice *d)
diff --git a/hw/display/trace-events b/hw/display/trace-events
index 9fccca18a1..e47264af5d 100644
--- a/hw/display/trace-events
+++ b/hw/display/trace-events
@@ -30,8 +30,10 @@ virtio_gpu_features(bool virgl) "virgl %d"
virtio_gpu_cmd_get_display_info(void) ""
virtio_gpu_cmd_get_edid(uint32_t scanout) "scanout %d"
virtio_gpu_cmd_set_scanout(uint32_t id, uint32_t res, uint32_t w, uint32_t h, uint32_t x, uint32_t y) "id %d, res 0x%x, w %d, h %d, x %d, y %d"
+virtio_gpu_cmd_set_scanout_blob(uint32_t id, uint32_t res, uint32_t w, uint32_t h, uint32_t x, uint32_t y) "id %d, res 0x%x, w %d, h %d, x %d, y %d"
virtio_gpu_cmd_res_create_2d(uint32_t res, uint32_t fmt, uint32_t w, uint32_t h) "res 0x%x, fmt 0x%x, w %d, h %d"
virtio_gpu_cmd_res_create_3d(uint32_t res, uint32_t fmt, uint32_t w, uint32_t h, uint32_t d) "res 0x%x, fmt 0x%x, w %d, h %d, d %d"
+virtio_gpu_cmd_res_create_blob(uint32_t res, uint64_t size) "res 0x%x, size %" PRId64
virtio_gpu_cmd_res_unref(uint32_t res) "res 0x%x"
virtio_gpu_cmd_res_back_attach(uint32_t res) "res 0x%x"
virtio_gpu_cmd_res_back_detach(uint32_t res) "res 0x%x"
diff --git a/hw/display/virtio-gpu-base.c b/hw/display/virtio-gpu-base.c
index afb3ee7d9a..dd294276cb 100644
--- a/hw/display/virtio-gpu-base.c
+++ b/hw/display/virtio-gpu-base.c
@@ -208,6 +208,9 @@ virtio_gpu_base_get_features(VirtIODevice *vdev, uint64_t features,
if (virtio_gpu_edid_enabled(g->conf)) {
features |= (1 << VIRTIO_GPU_F_EDID);
}
+ if (virtio_gpu_blob_enabled(g->conf)) {
+ features |= (1 << VIRTIO_GPU_F_RESOURCE_BLOB);
+ }
return features;
}
diff --git a/hw/display/virtio-gpu-udmabuf.c b/hw/display/virtio-gpu-udmabuf.c
new file mode 100644
index 0000000000..3c01a415e7
--- /dev/null
+++ b/hw/display/virtio-gpu-udmabuf.c
@@ -0,0 +1,223 @@
+/*
+ * Virtio GPU Device
+ *
+ * Copyright Red Hat, Inc. 2013-2014
+ *
+ * Authors:
+ * Dave Airlie <airlied@redhat.com>
+ * Gerd Hoffmann <kraxel@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "qemu-common.h"
+#include "qemu/iov.h"
+#include "ui/console.h"
+#include "hw/virtio/virtio-gpu.h"
+#include "hw/virtio/virtio-gpu-pixman.h"
+#include "trace.h"
+#include "exec/ramblock.h"
+#include "sysemu/hostmem.h"
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <linux/memfd.h>
+#include "qemu/memfd.h"
+#include "standard-headers/linux/udmabuf.h"
+
+static void virtio_gpu_create_udmabuf(struct virtio_gpu_simple_resource *res)
+{
+ struct udmabuf_create_list *list;
+ RAMBlock *rb;
+ ram_addr_t offset;
+ int udmabuf, i;
+
+ udmabuf = udmabuf_fd();
+ if (udmabuf < 0) {
+ return;
+ }
+
+ list = g_malloc0(sizeof(struct udmabuf_create_list) +
+ sizeof(struct udmabuf_create_item) * res->iov_cnt);
+
+ for (i = 0; i < res->iov_cnt; i++) {
+ rcu_read_lock();
+ rb = qemu_ram_block_from_host(res->iov[i].iov_base, false, &offset);
+ rcu_read_unlock();
+
+ if (!rb || rb->fd < 0) {
+ g_free(list);
+ return;
+ }
+
+ list->list[i].memfd = rb->fd;
+ list->list[i].offset = offset;
+ list->list[i].size = res->iov[i].iov_len;
+ }
+
+ list->count = res->iov_cnt;
+ list->flags = UDMABUF_FLAGS_CLOEXEC;
+
+ res->dmabuf_fd = ioctl(udmabuf, UDMABUF_CREATE_LIST, list);
+ if (res->dmabuf_fd < 0) {
+ warn_report("%s: UDMABUF_CREATE_LIST: %s", __func__,
+ strerror(errno));
+ }
+ g_free(list);
+}
+
+static void virtio_gpu_remap_udmabuf(struct virtio_gpu_simple_resource *res)
+{
+ res->remapped = mmap(NULL, res->blob_size, PROT_READ,
+ MAP_SHARED, res->dmabuf_fd, 0);
+ if (res->remapped == MAP_FAILED) {
+ warn_report("%s: dmabuf mmap failed: %s", __func__,
+ strerror(errno));
+ res->remapped = NULL;
+ }
+}
+
+static void virtio_gpu_destroy_udmabuf(struct virtio_gpu_simple_resource *res)
+{
+ if (res->remapped) {
+ munmap(res->remapped, res->blob_size);
+ res->remapped = NULL;
+ }
+ if (res->dmabuf_fd >= 0) {
+ close(res->dmabuf_fd);
+ res->dmabuf_fd = -1;
+ }
+}
+
+static int find_memory_backend_type(Object *obj, void *opaque)
+{
+ bool *memfd_backend = opaque;
+ int ret;
+
+ if (object_dynamic_cast(obj, TYPE_MEMORY_BACKEND)) {
+ HostMemoryBackend *backend = MEMORY_BACKEND(obj);
+ RAMBlock *rb = backend->mr.ram_block;
+
+ if (rb && rb->fd > 0) {
+ ret = fcntl(rb->fd, F_GET_SEALS);
+ if (ret > 0) {
+ *memfd_backend = true;
+ }
+ }
+ }
+
+ return 0;
+}
+
+bool virtio_gpu_have_udmabuf(void)
+{
+ Object *memdev_root;
+ int udmabuf;
+ bool memfd_backend = false;
+
+ udmabuf = udmabuf_fd();
+ if (udmabuf < 0) {
+ return false;
+ }
+
+ memdev_root = object_resolve_path("/objects", NULL);
+ object_child_foreach(memdev_root, find_memory_backend_type, &memfd_backend);
+
+ return memfd_backend;
+}
+
+void virtio_gpu_init_udmabuf(struct virtio_gpu_simple_resource *res)
+{
+ void *pdata = NULL;
+
+ res->dmabuf_fd = -1;
+ if (res->iov_cnt == 1) {
+ pdata = res->iov[0].iov_base;
+ } else {
+ virtio_gpu_create_udmabuf(res);
+ if (res->dmabuf_fd < 0) {
+ return;
+ }
+ virtio_gpu_remap_udmabuf(res);
+ if (!res->remapped) {
+ return;
+ }
+ pdata = res->remapped;
+ }
+
+ res->blob = pdata;
+}
+
+void virtio_gpu_fini_udmabuf(struct virtio_gpu_simple_resource *res)
+{
+ if (res->remapped) {
+ virtio_gpu_destroy_udmabuf(res);
+ }
+}
+
+static void virtio_gpu_free_dmabuf(VirtIOGPU *g, VGPUDMABuf *dmabuf)
+{
+ struct virtio_gpu_scanout *scanout;
+
+ scanout = &g->parent_obj.scanout[dmabuf->scanout_id];
+ dpy_gl_release_dmabuf(scanout->con, &dmabuf->buf);
+ QTAILQ_REMOVE(&g->dmabuf.bufs, dmabuf, next);
+ g_free(dmabuf);
+}
+
+static VGPUDMABuf
+*virtio_gpu_create_dmabuf(VirtIOGPU *g,
+ uint32_t scanout_id,
+ struct virtio_gpu_simple_resource *res,
+ struct virtio_gpu_framebuffer *fb)
+{
+ VGPUDMABuf *dmabuf;
+
+ if (res->dmabuf_fd < 0) {
+ return NULL;
+ }
+
+ dmabuf = g_new0(VGPUDMABuf, 1);
+ dmabuf->buf.width = fb->width;
+ dmabuf->buf.height = fb->height;
+ dmabuf->buf.stride = fb->stride;
+ dmabuf->buf.fourcc = qemu_pixman_to_drm_format(fb->format);
+ dmabuf->buf.fd = res->dmabuf_fd;
+
+ dmabuf->scanout_id = scanout_id;
+ QTAILQ_INSERT_HEAD(&g->dmabuf.bufs, dmabuf, next);
+
+ return dmabuf;
+}
+
+int virtio_gpu_update_dmabuf(VirtIOGPU *g,
+ uint32_t scanout_id,
+ struct virtio_gpu_simple_resource *res,
+ struct virtio_gpu_framebuffer *fb)
+{
+ struct virtio_gpu_scanout *scanout = &g->parent_obj.scanout[scanout_id];
+ VGPUDMABuf *new_primary, *old_primary = NULL;
+
+ new_primary = virtio_gpu_create_dmabuf(g, scanout_id, res, fb);
+ if (!new_primary) {
+ return -EINVAL;
+ }
+
+ if (g->dmabuf.primary) {
+ old_primary = g->dmabuf.primary;
+ }
+
+ g->dmabuf.primary = new_primary;
+ qemu_console_resize(scanout->con,
+ new_primary->buf.width,
+ new_primary->buf.height);
+ dpy_gl_scanout_dmabuf(scanout->con, &new_primary->buf);
+
+ if (old_primary) {
+ virtio_gpu_free_dmabuf(g, old_primary);
+ }
+
+ return 0;
+}
diff --git a/hw/display/virtio-gpu-virgl.c b/hw/display/virtio-gpu-virgl.c
index 72c14d9132..092c6dc380 100644
--- a/hw/display/virtio-gpu-virgl.c
+++ b/hw/display/virtio-gpu-virgl.c
@@ -289,7 +289,8 @@ static void virgl_resource_attach_backing(VirtIOGPU *g,
VIRTIO_GPU_FILL_CMD(att_rb);
trace_virtio_gpu_cmd_res_back_attach(att_rb.resource_id);
- ret = virtio_gpu_create_mapping_iov(g, &att_rb, cmd, NULL, &res_iovs, &res_niov);
+ ret = virtio_gpu_create_mapping_iov(g, att_rb.nr_entries, sizeof(att_rb),
+ cmd, NULL, &res_iovs, &res_niov);
if (ret != 0) {
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
return;
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index db56f0454a..4d549377cb 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -35,6 +35,10 @@
static struct virtio_gpu_simple_resource*
virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id);
+static struct virtio_gpu_simple_resource *
+virtio_gpu_find_check_resource(VirtIOGPU *g, uint32_t resource_id,
+ bool require_backing,
+ const char *caller, uint32_t *error);
static void virtio_gpu_cleanup_mapping(VirtIOGPU *g,
struct virtio_gpu_simple_resource *res);
@@ -45,20 +49,30 @@ void virtio_gpu_update_cursor_data(VirtIOGPU *g,
{
struct virtio_gpu_simple_resource *res;
uint32_t pixels;
+ void *data;
- res = virtio_gpu_find_resource(g, resource_id);
+ res = virtio_gpu_find_check_resource(g, resource_id, false,
+ __func__, NULL);
if (!res) {
return;
}
- if (pixman_image_get_width(res->image) != s->current_cursor->width ||
- pixman_image_get_height(res->image) != s->current_cursor->height) {
- return;
+ if (res->blob_size) {
+ if (res->blob_size < (s->current_cursor->width *
+ s->current_cursor->height * 4)) {
+ return;
+ }
+ data = res->blob;
+ } else {
+ if (pixman_image_get_width(res->image) != s->current_cursor->width ||
+ pixman_image_get_height(res->image) != s->current_cursor->height) {
+ return;
+ }
+ data = pixman_image_get_data(res->image);
}
pixels = s->current_cursor->width * s->current_cursor->height;
- memcpy(s->current_cursor->data,
- pixman_image_get_data(res->image),
+ memcpy(s->current_cursor->data, data,
pixels * sizeof(uint32_t));
}
@@ -114,6 +128,37 @@ virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id)
return NULL;
}
+static struct virtio_gpu_simple_resource *
+virtio_gpu_find_check_resource(VirtIOGPU *g, uint32_t resource_id,
+ bool require_backing,
+ const char *caller, uint32_t *error)
+{
+ struct virtio_gpu_simple_resource *res;
+
+ res = virtio_gpu_find_resource(g, resource_id);
+ if (!res) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid resource specified %d\n",
+ caller, resource_id);
+ if (error) {
+ *error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
+ }
+ return NULL;
+ }
+
+ if (require_backing) {
+ if (!res->iov || (!res->image && !res->blob)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: no backing storage %d\n",
+ caller, resource_id);
+ if (error) {
+ *error = VIRTIO_GPU_RESP_ERR_UNSPEC;
+ }
+ return NULL;
+ }
+ }
+
+ return res;
+}
+
void virtio_gpu_ctrl_response(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd,
struct virtio_gpu_ctrl_hdr *resp,
@@ -277,6 +322,62 @@ static void virtio_gpu_resource_create_2d(VirtIOGPU *g,
g->hostmem += res->hostmem;
}
+static void virtio_gpu_resource_create_blob(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_resource_create_blob cblob;
+ int ret;
+
+ VIRTIO_GPU_FILL_CMD(cblob);
+ virtio_gpu_create_blob_bswap(&cblob);
+ trace_virtio_gpu_cmd_res_create_blob(cblob.resource_id, cblob.size);
+
+ if (cblob.resource_id == 0) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: resource id 0 is not allowed\n",
+ __func__);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
+ return;
+ }
+
+ res = virtio_gpu_find_resource(g, cblob.resource_id);
+ if (res) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: resource already exists %d\n",
+ __func__, cblob.resource_id);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
+ return;
+ }
+
+ res = g_new0(struct virtio_gpu_simple_resource, 1);
+ res->resource_id = cblob.resource_id;
+ res->blob_size = cblob.size;
+
+ if (cblob.blob_mem != VIRTIO_GPU_BLOB_MEM_GUEST &&
+ cblob.blob_flags != VIRTIO_GPU_BLOB_FLAG_USE_SHAREABLE) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid memory type\n",
+ __func__);
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
+ g_free(res);
+ return;
+ }
+
+ if (res->iov) {
+ cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
+ return;
+ }
+
+ ret = virtio_gpu_create_mapping_iov(g, cblob.nr_entries, sizeof(cblob),
+ cmd, &res->addrs, &res->iov,
+ &res->iov_cnt);
+ if (ret != 0) {
+ cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
+ return;
+ }
+
+ virtio_gpu_init_udmabuf(res);
+ QTAILQ_INSERT_HEAD(&g->reslist, res, next);
+}
+
static void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id)
{
struct virtio_gpu_scanout *scanout = &g->parent_obj.scanout[scanout_id];
@@ -311,7 +412,7 @@ static void virtio_gpu_resource_destroy(VirtIOGPU *g,
}
}
- pixman_image_unref(res->image);
+ qemu_pixman_image_unref(res->image);
virtio_gpu_cleanup_mapping(g, res);
QTAILQ_REMOVE(&g->reslist, res, next);
g->hostmem -= res->hostmem;
@@ -352,11 +453,9 @@ static void virtio_gpu_transfer_to_host_2d(VirtIOGPU *g,
virtio_gpu_t2d_bswap(&t2d);
trace_virtio_gpu_cmd_res_xfer_toh_2d(t2d.resource_id);
- res = virtio_gpu_find_resource(g, t2d.resource_id);
- if (!res || !res->iov) {
- qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n",
- __func__, t2d.resource_id);
- cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
+ res = virtio_gpu_find_check_resource(g, t2d.resource_id, true,
+ __func__, &cmd->error);
+ if (!res || res->blob) {
return;
}
@@ -402,6 +501,7 @@ static void virtio_gpu_resource_flush(VirtIOGPU *g,
{
struct virtio_gpu_simple_resource *res;
struct virtio_gpu_resource_flush rf;
+ struct virtio_gpu_scanout *scanout;
pixman_region16_t flush_region;
int i;
@@ -410,20 +510,31 @@ static void virtio_gpu_resource_flush(VirtIOGPU *g,
trace_virtio_gpu_cmd_res_flush(rf.resource_id,
rf.r.width, rf.r.height, rf.r.x, rf.r.y);
- res = virtio_gpu_find_resource(g, rf.resource_id);
+ res = virtio_gpu_find_check_resource(g, rf.resource_id, false,
+ __func__, &cmd->error);
if (!res) {
- qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n",
- __func__, rf.resource_id);
- cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
return;
}
- if (rf.r.x > res->width ||
+ if (res->blob) {
+ for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
+ scanout = &g->parent_obj.scanout[i];
+ if (scanout->resource_id == res->resource_id &&
+ console_has_gl(scanout->con)) {
+ dpy_gl_update(scanout->con, 0, 0, scanout->width,
+ scanout->height);
+ return;
+ }
+ }
+ }
+
+ if (!res->blob &&
+ (rf.r.x > res->width ||
rf.r.y > res->height ||
rf.r.width > res->width ||
rf.r.height > res->height ||
rf.r.x + rf.r.width > res->width ||
- rf.r.y + rf.r.height > res->height) {
+ rf.r.y + rf.r.height > res->height)) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: flush bounds outside resource"
" bounds for resource %d: %d %d %d %d vs %d %d\n",
__func__, rf.resource_id, rf.r.x, rf.r.y,
@@ -435,7 +546,6 @@ static void virtio_gpu_resource_flush(VirtIOGPU *g,
pixman_region_init_rect(&flush_region,
rf.r.x, rf.r.y, rf.r.width, rf.r.height);
for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
- struct virtio_gpu_scanout *scanout;
pixman_region16_t region, finalregion;
pixman_box16_t *extents;
@@ -468,14 +578,115 @@ 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_rect *r)
+{
+ struct virtio_gpu_simple_resource *ores;
+ struct virtio_gpu_scanout *scanout;
+
+ scanout = &g->parent_obj.scanout[scanout_id];
+ ores = virtio_gpu_find_resource(g, scanout->resource_id);
+ if (ores) {
+ ores->scanout_bitmask &= ~(1 << scanout_id);
+ }
+
+ res->scanout_bitmask |= (1 << scanout_id);
+ scanout->resource_id = res->resource_id;
+ scanout->x = r->x;
+ scanout->y = r->y;
+ scanout->width = r->width;
+ scanout->height = r->height;
+}
+
+static void virtio_gpu_do_set_scanout(VirtIOGPU *g,
+ uint32_t scanout_id,
+ struct virtio_gpu_framebuffer *fb,
+ struct virtio_gpu_simple_resource *res,
+ struct virtio_gpu_rect *r,
+ uint32_t *error)
+{
+ struct virtio_gpu_scanout *scanout;
+ uint8_t *data;
+
+ if (scanout_id >= g->parent_obj.conf.max_outputs) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d",
+ __func__, scanout_id);
+ *error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID;
+ return;
+ }
+ scanout = &g->parent_obj.scanout[scanout_id];
+
+ if (r->x > fb->width ||
+ r->y > fb->height ||
+ r->width < 16 ||
+ r->height < 16 ||
+ r->width > fb->width ||
+ r->height > fb->height ||
+ r->x + r->width > fb->width ||
+ r->y + r->height > fb->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__, scanout_id, res->resource_id,
+ r->x, r->y, r->width, r->height,
+ fb->width, fb->height);
+ *error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
+ return;
+ }
+
+ g->parent_obj.enable = 1;
+
+ if (res->blob) {
+ if (console_has_gl(scanout->con)) {
+ if (!virtio_gpu_update_dmabuf(g, scanout_id, res, fb)) {
+ virtio_gpu_update_scanout(g, scanout_id, res, r);
+ return;
+ }
+ }
+
+ data = res->blob;
+ } else {
+ data = (uint8_t *)pixman_image_get_data(res->image);
+ }
+
+ /* create a surface for this scanout */
+ if ((res->blob && !console_has_gl(scanout->con)) ||
+ !scanout->ds ||
+ surface_data(scanout->ds) != data + fb->offset ||
+ scanout->width != r->width ||
+ scanout->height != r->height) {
+ pixman_image_t *rect;
+ void *ptr = data + fb->offset;
+ rect = pixman_image_create_bits(fb->format, r->width, r->height,
+ ptr, fb->stride);
+
+ if (res->image) {
+ pixman_image_ref(res->image);
+ pixman_image_set_destroy_function(rect, virtio_unref_resource,
+ res->image);
+ }
+
+ /* realloc the surface ptr */
+ scanout->ds = qemu_create_displaysurface_pixman(rect);
+ if (!scanout->ds) {
+ *error = VIRTIO_GPU_RESP_ERR_UNSPEC;
+ return;
+ }
+
+ pixman_image_unref(rect);
+ dpy_gfx_replace_surface(g->parent_obj.scanout[scanout_id].con,
+ scanout->ds);
+ }
+
+ virtio_gpu_update_scanout(g, scanout_id, res, r);
+}
+
static void virtio_gpu_set_scanout(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd)
{
- struct virtio_gpu_simple_resource *res, *ores;
- struct virtio_gpu_scanout *scanout;
- pixman_format_code_t format;
- uint32_t offset;
- int bpp;
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_framebuffer fb = { 0 };
struct virtio_gpu_set_scanout ss;
VIRTIO_GPU_FILL_CMD(ss);
@@ -483,86 +694,85 @@ static void virtio_gpu_set_scanout(VirtIOGPU *g,
trace_virtio_gpu_cmd_set_scanout(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;
+ if (ss.resource_id == 0) {
+ virtio_gpu_disable_scanout(g, ss.scanout_id);
return;
}
- g->parent_obj.enable = 1;
+ res = virtio_gpu_find_check_resource(g, ss.resource_id, true,
+ __func__, &cmd->error);
+ if (!res) {
+ return;
+ }
+
+ fb.format = pixman_image_get_format(res->image);
+ fb.bytes_pp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(fb.format), 8);
+ fb.width = pixman_image_get_width(res->image);
+ fb.height = pixman_image_get_height(res->image);
+ fb.stride = pixman_image_get_stride(res->image);
+ fb.offset = ss.r.x * fb.bytes_pp + ss.r.y * fb.stride;
+
+ virtio_gpu_do_set_scanout(g, ss.scanout_id,
+ &fb, res, &ss.r, &cmd->error);
+}
+
+static void virtio_gpu_set_scanout_blob(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_framebuffer fb = { 0 };
+ 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.resource_id == 0) {
virtio_gpu_disable_scanout(g, ss.scanout_id);
return;
}
- /* create a surface for this scanout */
- res = virtio_gpu_find_resource(g, ss.resource_id);
+ res = virtio_gpu_find_check_resource(g, ss.resource_id, true,
+ __func__, &cmd->error);
if (!res) {
- qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n",
- __func__, ss.resource_id);
- cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
return;
}
- if (ss.r.x > res->width ||
- ss.r.y > res->height ||
- ss.r.width < 16 ||
- ss.r.height < 16 ||
- ss.r.width > res->width ||
- ss.r.height > res->height ||
- ss.r.x + ss.r.width > res->width ||
- ss.r.y + ss.r.height > res->height) {
- qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout %d bounds for"
- " resource %d, (%d,%d)+%d,%d vs %d %d\n",
- __func__, ss.scanout_id, ss.resource_id, ss.r.x, ss.r.y,
- ss.r.width, ss.r.height, res->width, res->height);
+ fb.format = virtio_gpu_get_pixman_format(ss.format);
+ if (!fb.format) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: host couldn't handle guest format %d\n",
+ __func__, ss.format);
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
return;
}
- scanout = &g->parent_obj.scanout[ss.scanout_id];
-
- format = pixman_image_get_format(res->image);
- bpp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(format), 8);
- offset = (ss.r.x * bpp) + ss.r.y * pixman_image_get_stride(res->image);
- if (!scanout->ds || surface_data(scanout->ds)
- != ((uint8_t *)pixman_image_get_data(res->image) + offset) ||
- scanout->width != ss.r.width ||
- scanout->height != ss.r.height) {
- pixman_image_t *rect;
- void *ptr = (uint8_t *)pixman_image_get_data(res->image) + offset;
- rect = pixman_image_create_bits(format, ss.r.width, ss.r.height, ptr,
- pixman_image_get_stride(res->image));
- pixman_image_ref(res->image);
- pixman_image_set_destroy_function(rect, virtio_unref_resource,
- res->image);
- /* realloc the surface ptr */
- scanout->ds = qemu_create_displaysurface_pixman(rect);
- if (!scanout->ds) {
- cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
- return;
- }
- pixman_image_unref(rect);
- dpy_gfx_replace_surface(g->parent_obj.scanout[ss.scanout_id].con,
- scanout->ds);
- }
+ 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;
- ores = virtio_gpu_find_resource(g, scanout->resource_id);
- if (ores) {
- ores->scanout_bitmask &= ~(1 << ss.scanout_id);
+ fbend = fb.offset;
+ fbend += fb.stride * (ss.r.height - 1);
+ fbend += fb.bytes_pp * ss.r.width;
+ if (fbend > res->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;
}
- res->scanout_bitmask |= (1 << ss.scanout_id);
- scanout->resource_id = ss.resource_id;
- scanout->x = ss.r.x;
- scanout->y = ss.r.y;
- scanout->width = ss.r.width;
- scanout->height = ss.r.height;
+ virtio_gpu_do_set_scanout(g, ss.scanout_id,
+ &fb, res, &ss.r, &cmd->error);
}
int virtio_gpu_create_mapping_iov(VirtIOGPU *g,
- struct virtio_gpu_resource_attach_backing *ab,
+ uint32_t nr_entries, uint32_t offset,
struct virtio_gpu_ctrl_command *cmd,
uint64_t **addr, struct iovec **iov,
uint32_t *niov)
@@ -571,17 +781,17 @@ int virtio_gpu_create_mapping_iov(VirtIOGPU *g,
size_t esize, s;
int e, v;
- if (ab->nr_entries > 16384) {
+ if (nr_entries > 16384) {
qemu_log_mask(LOG_GUEST_ERROR,
"%s: nr_entries is too big (%d > 16384)\n",
- __func__, ab->nr_entries);
+ __func__, nr_entries);
return -1;
}
- esize = sizeof(*ents) * ab->nr_entries;
+ esize = sizeof(*ents) * nr_entries;
ents = g_malloc(esize);
s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num,
- sizeof(*ab), ents, esize);
+ offset, ents, esize);
if (s != esize) {
qemu_log_mask(LOG_GUEST_ERROR,
"%s: command data size incorrect %zu vs %zu\n",
@@ -594,7 +804,7 @@ int virtio_gpu_create_mapping_iov(VirtIOGPU *g,
if (addr) {
*addr = NULL;
}
- for (e = 0, v = 0; e < ab->nr_entries; e++) {
+ for (e = 0, v = 0; e < nr_entries; e++) {
uint64_t a = le64_to_cpu(ents[e].addr);
uint32_t l = le32_to_cpu(ents[e].length);
hwaddr len;
@@ -606,8 +816,7 @@ int virtio_gpu_create_mapping_iov(VirtIOGPU *g,
a, &len, DMA_DIRECTION_TO_DEVICE);
if (!map) {
qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to map MMIO memory for"
- " resource %d element %d\n",
- __func__, ab->resource_id, e);
+ " element %d\n", __func__, e);
virtio_gpu_cleanup_mapping_iov(g, *iov, v);
g_free(ents);
*iov = NULL;
@@ -663,6 +872,10 @@ static void virtio_gpu_cleanup_mapping(VirtIOGPU *g,
res->iov_cnt = 0;
g_free(res->addrs);
res->addrs = NULL;
+
+ if (res->blob) {
+ virtio_gpu_fini_udmabuf(res);
+ }
}
static void
@@ -690,8 +903,8 @@ virtio_gpu_resource_attach_backing(VirtIOGPU *g,
return;
}
- ret = virtio_gpu_create_mapping_iov(g, &ab, cmd, &res->addrs,
- &res->iov, &res->iov_cnt);
+ ret = virtio_gpu_create_mapping_iov(g, ab.nr_entries, sizeof(ab), cmd,
+ &res->addrs, &res->iov, &res->iov_cnt);
if (ret != 0) {
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
return;
@@ -709,11 +922,9 @@ virtio_gpu_resource_detach_backing(VirtIOGPU *g,
virtio_gpu_bswap_32(&detach, sizeof(detach));
trace_virtio_gpu_cmd_res_back_detach(detach.resource_id);
- res = virtio_gpu_find_resource(g, detach.resource_id);
- if (!res || !res->iov) {
- qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n",
- __func__, detach.resource_id);
- cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
+ res = virtio_gpu_find_check_resource(g, detach.resource_id, true,
+ __func__, &cmd->error);
+ if (!res) {
return;
}
virtio_gpu_cleanup_mapping(g, res);
@@ -735,6 +946,13 @@ void virtio_gpu_simple_process_cmd(VirtIOGPU *g,
case VIRTIO_GPU_CMD_RESOURCE_CREATE_2D:
virtio_gpu_resource_create_2d(g, cmd);
break;
+ case VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB:
+ if (!virtio_gpu_blob_enabled(g->parent_obj.conf)) {
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
+ break;
+ }
+ virtio_gpu_resource_create_blob(g, cmd);
+ break;
case VIRTIO_GPU_CMD_RESOURCE_UNREF:
virtio_gpu_resource_unref(g, cmd);
break;
@@ -747,6 +965,13 @@ void virtio_gpu_simple_process_cmd(VirtIOGPU *g,
case VIRTIO_GPU_CMD_SET_SCANOUT:
virtio_gpu_set_scanout(g, cmd);
break;
+ case VIRTIO_GPU_CMD_SET_SCANOUT_BLOB:
+ if (!virtio_gpu_blob_enabled(g->parent_obj.conf)) {
+ cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
+ break;
+ }
+ virtio_gpu_set_scanout_blob(g, cmd);
+ break;
case VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING:
virtio_gpu_resource_attach_backing(g, cmd);
break;
@@ -1058,6 +1283,18 @@ void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
VirtIOGPU *g = VIRTIO_GPU(qdev);
+ if (virtio_gpu_blob_enabled(g->parent_obj.conf)) {
+ if (!virtio_gpu_have_udmabuf()) {
+ error_setg(errp, "cannot enable blob resources without udmabuf");
+ return;
+ }
+
+ if (virtio_gpu_virgl_enabled(g->parent_obj.conf)) {
+ error_setg(errp, "blobs and virgl are not compatible (yet)");
+ return;
+ }
+ }
+
if (!virtio_gpu_base_device_realize(qdev,
virtio_gpu_handle_ctrl_cb,
virtio_gpu_handle_cursor_cb,
@@ -1151,6 +1388,8 @@ static Property virtio_gpu_properties[] = {
VIRTIO_GPU_BASE_PROPERTIES(VirtIOGPU, parent_obj.conf),
DEFINE_PROP_SIZE("max_hostmem", VirtIOGPU, conf_max_hostmem,
256 * MiB),
+ DEFINE_PROP_BIT("blob", VirtIOGPU, parent_obj.conf.flags,
+ VIRTIO_GPU_FLAG_BLOB_ENABLED, false),
DEFINE_PROP_END_OF_LIST(),
};
diff --git a/include/hw/virtio/virtio-gpu-bswap.h b/include/hw/virtio/virtio-gpu-bswap.h
index 203f9e1718..e2bee8f595 100644
--- a/include/hw/virtio/virtio-gpu-bswap.h
+++ b/include/hw/virtio/virtio-gpu-bswap.h
@@ -59,4 +59,20 @@ virtio_gpu_t2d_bswap(struct virtio_gpu_transfer_to_host_2d *t2d)
le32_to_cpus(&t2d->padding);
}
+static inline void
+virtio_gpu_create_blob_bswap(struct virtio_gpu_resource_create_blob *cblob)
+{
+ virtio_gpu_ctrl_hdr_bswap(&cblob->hdr);
+ le32_to_cpus(&cblob->resource_id);
+ le32_to_cpus(&cblob->blob_flags);
+ le64_to_cpus(&cblob->size);
+}
+
+static inline void
+virtio_gpu_scanout_blob_bswap(struct virtio_gpu_set_scanout_blob *ssb)
+{
+ virtio_gpu_bswap_32(ssb, sizeof(*ssb) - sizeof(ssb->offsets[3]));
+ le32_to_cpus(&ssb->offsets[3]);
+}
+
#endif
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index 8ca2c55d9a..bcf54d970f 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -50,9 +50,23 @@ struct virtio_gpu_simple_resource {
uint32_t scanout_bitmask;
pixman_image_t *image;
uint64_t hostmem;
+
+ uint64_t blob_size;
+ void *blob;
+ int dmabuf_fd;
+ uint8_t *remapped;
+
QTAILQ_ENTRY(virtio_gpu_simple_resource) next;
};
+struct virtio_gpu_framebuffer {
+ pixman_format_code_t format;
+ uint32_t bytes_pp;
+ uint32_t width, height;
+ uint32_t stride;
+ uint32_t offset;
+};
+
struct virtio_gpu_scanout {
QemuConsole *con;
DisplaySurface *ds;
@@ -75,6 +89,7 @@ enum virtio_gpu_base_conf_flags {
VIRTIO_GPU_FLAG_STATS_ENABLED,
VIRTIO_GPU_FLAG_EDID_ENABLED,
VIRTIO_GPU_FLAG_DMABUF_ENABLED,
+ VIRTIO_GPU_FLAG_BLOB_ENABLED,
};
#define virtio_gpu_virgl_enabled(_cfg) \
@@ -85,6 +100,8 @@ enum virtio_gpu_base_conf_flags {
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_EDID_ENABLED))
#define virtio_gpu_dmabuf_enabled(_cfg) \
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_DMABUF_ENABLED))
+#define virtio_gpu_blob_enabled(_cfg) \
+ (_cfg.flags & (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED))
struct virtio_gpu_base_conf {
uint32_t max_outputs;
@@ -133,6 +150,12 @@ struct VirtIOGPUBaseClass {
DEFINE_PROP_UINT32("xres", _state, _conf.xres, 1024), \
DEFINE_PROP_UINT32("yres", _state, _conf.yres, 768)
+typedef struct VGPUDMABuf {
+ QemuDmaBuf buf;
+ uint32_t scanout_id;
+ QTAILQ_ENTRY(VGPUDMABuf) next;
+} VGPUDMABuf;
+
struct VirtIOGPU {
VirtIOGPUBase parent_obj;
@@ -161,6 +184,11 @@ struct VirtIOGPU {
uint32_t req_3d;
uint32_t bytes_3d;
} stats;
+
+ struct {
+ QTAILQ_HEAD(, VGPUDMABuf) bufs;
+ VGPUDMABuf *primary;
+ } dmabuf;
};
struct VirtIOGPUClass {
@@ -224,7 +252,7 @@ void virtio_gpu_get_display_info(VirtIOGPU *g,
void virtio_gpu_get_edid(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd);
int virtio_gpu_create_mapping_iov(VirtIOGPU *g,
- struct virtio_gpu_resource_attach_backing *ab,
+ uint32_t nr_entries, uint32_t offset,
struct virtio_gpu_ctrl_command *cmd,
uint64_t **addr, struct iovec **iov,
uint32_t *niov);
@@ -238,6 +266,15 @@ void virtio_gpu_update_cursor_data(VirtIOGPU *g,
struct virtio_gpu_scanout *s,
uint32_t resource_id);
+/* virtio-gpu-udmabuf.c */
+bool virtio_gpu_have_udmabuf(void);
+void virtio_gpu_init_udmabuf(struct virtio_gpu_simple_resource *res);
+void virtio_gpu_fini_udmabuf(struct virtio_gpu_simple_resource *res);
+int virtio_gpu_update_dmabuf(VirtIOGPU *g,
+ uint32_t scanout_id,
+ struct virtio_gpu_simple_resource *res,
+ struct virtio_gpu_framebuffer *fb);
+
/* virtio-gpu-3d.c */
void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd);
diff --git a/include/standard-headers/linux/udmabuf.h b/include/standard-headers/linux/udmabuf.h
new file mode 100644
index 0000000000..e19eb5b5ce
--- /dev/null
+++ b/include/standard-headers/linux/udmabuf.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_UDMABUF_H
+#define _LINUX_UDMABUF_H
+
+#include "standard-headers/linux/types.h"
+
+#define UDMABUF_FLAGS_CLOEXEC 0x01
+
+struct udmabuf_create {
+ uint32_t memfd;
+ uint32_t flags;
+ uint64_t offset;
+ uint64_t size;
+};
+
+struct udmabuf_create_item {
+ uint32_t memfd;
+ uint32_t __pad;
+ uint64_t offset;
+ uint64_t size;
+};
+
+struct udmabuf_create_list {
+ uint32_t flags;
+ uint32_t count;
+ struct udmabuf_create_item list[];
+};
+
+#define UDMABUF_CREATE _IOW('u', 0x42, struct udmabuf_create)
+#define UDMABUF_CREATE_LIST _IOW('u', 0x43, struct udmabuf_create_list)
+
+#endif /* _LINUX_UDMABUF_H */
diff --git a/include/ui/console.h b/include/ui/console.h
index ca3c7af6a6..b30b63976a 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -471,4 +471,7 @@ bool vnc_display_reload_certs(const char *id, Error **errp);
/* input.c */
int index_from_key(const char *key, size_t key_length);
+/* udmabuf.c */
+int udmabuf_fd(void);
+
#endif
diff --git a/include/ui/qemu-pixman.h b/include/ui/qemu-pixman.h
index 87737a6f16..806ddcd7cd 100644
--- a/include/ui/qemu-pixman.h
+++ b/include/ui/qemu-pixman.h
@@ -62,6 +62,7 @@ typedef struct PixelFormat {
PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format);
pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian);
pixman_format_code_t qemu_drm_format_to_pixman(uint32_t drm_format);
+uint32_t qemu_pixman_to_drm_format(pixman_format_code_t pixman);
int qemu_pixman_get_type(int rshift, int gshift, int bshift);
pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf);
bool qemu_pixman_check_format(DisplayChangeListener *dcl,
diff --git a/meson.build b/meson.build
index 20d7035e44..a45f1a844f 100644
--- a/meson.build
+++ b/meson.build
@@ -1899,7 +1899,7 @@ util_ss.add_all(trace_ss)
util_ss = util_ss.apply(config_all, strict: false)
libqemuutil = static_library('qemuutil',
sources: util_ss.sources() + stub_ss.sources() + genh,
- dependencies: [util_ss.dependencies(), m, glib, socket, malloc])
+ dependencies: [util_ss.dependencies(), m, glib, socket, malloc, pixman])
qemuutil = declare_dependency(link_with: libqemuutil,
sources: genh + version_res)
diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
index 1050e36169..fea4d6eb65 100755
--- a/scripts/update-linux-headers.sh
+++ b/scripts/update-linux-headers.sh
@@ -34,6 +34,7 @@ cp_portable() {
if
grep '#include' "$f" | grep -v -e 'linux/virtio' \
-e 'linux/types' \
+ -e 'linux/ioctl' \
-e 'stdint' \
-e 'linux/if_ether' \
-e 'input-event-codes' \
@@ -66,6 +67,7 @@ cp_portable() {
-e 's/__BITS_PER_LONG/HOST_LONG_BITS/' \
-e '/\"drm.h\"/d' \
-e '/sys\/ioctl.h/d' \
+ -e '/linux\/ioctl.h/d' \
-e 's/SW_MAX/SW_MAX_/' \
-e 's/atomic_t/int/' \
-e 's/__kernel_long_t/long/' \
@@ -190,6 +192,7 @@ for i in "$tmpdir"/include/linux/*virtio*.h \
"$tmpdir/include/linux/fuse.h" \
"$tmpdir/include/linux/input.h" \
"$tmpdir/include/linux/input-event-codes.h" \
+ "$tmpdir/include/linux/udmabuf.h" \
"$tmpdir/include/linux/pci_regs.h" \
"$tmpdir/include/linux/ethtool.h" \
"$tmpdir/include/linux/const.h" \
diff --git a/stubs/meson.build b/stubs/meson.build
index f3f979c3fe..65c22c0568 100644
--- a/stubs/meson.build
+++ b/stubs/meson.build
@@ -53,6 +53,7 @@ if have_system
stub_ss.add(files('semihost.c'))
stub_ss.add(files('usb-dev-stub.c'))
stub_ss.add(files('xen-hw-stub.c'))
+ stub_ss.add(files('virtio-gpu-udmabuf.c'))
else
stub_ss.add(files('qdev.c'))
endif
diff --git a/stubs/virtio-gpu-udmabuf.c b/stubs/virtio-gpu-udmabuf.c
new file mode 100644
index 0000000000..81f661441a
--- /dev/null
+++ b/stubs/virtio-gpu-udmabuf.c
@@ -0,0 +1,27 @@
+#include "qemu/osdep.h"
+#include "hw/virtio/virtio-gpu.h"
+
+bool virtio_gpu_have_udmabuf(void)
+{
+ /* nothing (stub) */
+ return false;
+}
+
+void virtio_gpu_init_udmabuf(struct virtio_gpu_simple_resource *res)
+{
+ /* nothing (stub) */
+}
+
+void virtio_gpu_fini_udmabuf(struct virtio_gpu_simple_resource *res)
+{
+ /* nothing (stub) */
+}
+
+int virtio_gpu_update_dmabuf(VirtIOGPU *g,
+ uint32_t scanout_id,
+ struct virtio_gpu_simple_resource *res,
+ struct virtio_gpu_framebuffer *fb)
+{
+ /* nothing (stub) */
+ return 0;
+}
diff --git a/ui/meson.build b/ui/meson.build
index b5aed14886..a3a187d633 100644
--- a/ui/meson.build
+++ b/ui/meson.build
@@ -12,6 +12,7 @@ softmmu_ss.add(files(
'kbd-state.c',
'keymaps.c',
'qemu-pixman.c',
+ 'udmabuf.c',
))
softmmu_ss.add([spice_headers, files('spice-module.c')])
softmmu_ss.add(when: spice_protocol, if_true: files('vdagent.c'))
diff --git a/ui/qemu-pixman.c b/ui/qemu-pixman.c
index 85f2945e88..3ab7e2e958 100644
--- a/ui/qemu-pixman.c
+++ b/ui/qemu-pixman.c
@@ -89,21 +89,34 @@ pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian)
}
/* Note: drm is little endian, pixman is native endian */
+static const struct {
+ uint32_t drm_format;
+ pixman_format_code_t pixman_format;
+} drm_format_pixman_map[] = {
+ { DRM_FORMAT_RGB888, PIXMAN_LE_r8g8b8 },
+ { DRM_FORMAT_ARGB8888, PIXMAN_LE_a8r8g8b8 },
+ { DRM_FORMAT_XRGB8888, PIXMAN_LE_x8r8g8b8 }
+};
+
pixman_format_code_t qemu_drm_format_to_pixman(uint32_t drm_format)
{
- static const struct {
- uint32_t drm_format;
- pixman_format_code_t pixman;
- } map[] = {
- { DRM_FORMAT_RGB888, PIXMAN_LE_r8g8b8 },
- { DRM_FORMAT_ARGB8888, PIXMAN_LE_a8r8g8b8 },
- { DRM_FORMAT_XRGB8888, PIXMAN_LE_x8r8g8b8 }
- };
int i;
- for (i = 0; i < ARRAY_SIZE(map); i++) {
- if (drm_format == map[i].drm_format) {
- return map[i].pixman;
+ for (i = 0; i < ARRAY_SIZE(drm_format_pixman_map); i++) {
+ if (drm_format == drm_format_pixman_map[i].drm_format) {
+ return drm_format_pixman_map[i].pixman_format;
+ }
+ }
+ return 0;
+}
+
+uint32_t qemu_pixman_to_drm_format(pixman_format_code_t pixman_format)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(drm_format_pixman_map); i++) {
+ if (pixman_format == drm_format_pixman_map[i].pixman_format) {
+ return drm_format_pixman_map[i].drm_format;
}
}
return 0;
diff --git a/ui/udmabuf.c b/ui/udmabuf.c
new file mode 100644
index 0000000000..23abe1e7eb
--- /dev/null
+++ b/ui/udmabuf.c
@@ -0,0 +1,40 @@
+/*
+ * udmabuf helper functions.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "ui/console.h"
+
+#ifdef CONFIG_LINUX
+
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+int udmabuf_fd(void)
+{
+ static bool first = true;
+ static int udmabuf;
+
+ if (!first) {
+ return udmabuf;
+ }
+ first = false;
+
+ udmabuf = open("/dev/udmabuf", O_RDWR);
+ if (udmabuf < 0) {
+ warn_report("open /dev/udmabuf: %s", strerror(errno));
+ }
+ return udmabuf;
+}
+
+#else
+
+int udmabuf_fd(void)
+{
+ return -1;
+}
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-21 22:16:10 +0000