* [PATCH v17 0/9] gfxstream + rutabaga_gfx
@ 2023-10-06 1:08 Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 1/9] virtio: Add shared memory capability Gurchetan Singh
` (9 more replies)
0 siblings, 10 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-06 1:08 UTC (permalink / raw)
To: qemu-devel
Cc: marcandre.lureau, akihiko.odaki, ray.huang, alex.bennee, shentey,
hi, ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
From: Gurchetan Singh <gurchetansingh@google.com>
Branch containing changes:
https://gitlab.com/gurchetansingh/qemu/-/commits/qemu-gfxstream-v17
Changes since v16:
- Fixed typo mentioned here:
https://lists.gnu.org/archive/html/qemu-devel/2023-10/msg01407.html
Antonio Caggiano (2):
virtio-gpu: CONTEXT_INIT feature
virtio-gpu: blob prep
Dr. David Alan Gilbert (1):
virtio: Add shared memory capability
Gerd Hoffmann (1):
virtio-gpu: hostmem
Gurchetan Singh (5):
gfxstream + rutabaga prep: added need defintions, fields, and options
gfxstream + rutabaga: add initial support for gfxstream
gfxstream + rutabaga: meson support
gfxstream + rutabaga: enable rutabaga
docs/system: add basic virtio-gpu documentation
docs/system/device-emulation.rst | 1 +
docs/system/devices/virtio-gpu.rst | 112 +++
hw/display/meson.build | 22 +
hw/display/virtio-gpu-base.c | 6 +-
hw/display/virtio-gpu-pci-rutabaga.c | 47 ++
hw/display/virtio-gpu-pci.c | 14 +
hw/display/virtio-gpu-rutabaga.c | 1113 ++++++++++++++++++++++++++
hw/display/virtio-gpu.c | 16 +-
hw/display/virtio-vga-rutabaga.c | 50 ++
hw/display/virtio-vga.c | 33 +-
hw/virtio/virtio-pci.c | 18 +
include/hw/virtio/virtio-gpu-bswap.h | 15 +
include/hw/virtio/virtio-gpu.h | 40 +
include/hw/virtio/virtio-pci.h | 4 +
meson.build | 7 +
meson_options.txt | 2 +
scripts/meson-buildoptions.sh | 3 +
softmmu/qdev-monitor.c | 3 +
softmmu/vl.c | 1 +
19 files changed, 1488 insertions(+), 19 deletions(-)
create mode 100644 docs/system/devices/virtio-gpu.rst
create mode 100644 hw/display/virtio-gpu-pci-rutabaga.c
create mode 100644 hw/display/virtio-gpu-rutabaga.c
create mode 100644 hw/display/virtio-vga-rutabaga.c
--
2.42.0.609.gbb76f46606-goog
^ permalink raw reply [flat|nested] 17+ messages in thread
* [PATCH v17 1/9] virtio: Add shared memory capability
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
@ 2023-10-06 1:08 ` Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 2/9] virtio-gpu: CONTEXT_INIT feature Gurchetan Singh
` (8 subsequent siblings)
9 siblings, 0 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-06 1:08 UTC (permalink / raw)
To: qemu-devel
Cc: marcandre.lureau, akihiko.odaki, ray.huang, alex.bennee, shentey,
hi, ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Define a new capability type 'VIRTIO_PCI_CAP_SHARED_MEMORY_CFG' to allow
defining shared memory regions with sizes and offsets of 2^32 and more.
Multiple instances of the capability are allowed and distinguished
by a device-specific 'id'.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Antonio Caggiano <antonio.caggiano@collabora.com>
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Alyssa Ross <hi@alyssa.is>
Tested-by: Huang Rui <ray.huang@amd.com>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
hw/virtio/virtio-pci.c | 18 ++++++++++++++++++
include/hw/virtio/virtio-pci.h | 4 ++++
2 files changed, 22 insertions(+)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index edbc0daa18..da8c9ea12d 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1435,6 +1435,24 @@ static int virtio_pci_add_mem_cap(VirtIOPCIProxy *proxy,
return offset;
}
+int virtio_pci_add_shm_cap(VirtIOPCIProxy *proxy,
+ uint8_t bar, uint64_t offset, uint64_t length,
+ uint8_t id)
+{
+ struct virtio_pci_cap64 cap = {
+ .cap.cap_len = sizeof cap,
+ .cap.cfg_type = VIRTIO_PCI_CAP_SHARED_MEMORY_CFG,
+ };
+
+ cap.cap.bar = bar;
+ cap.cap.length = cpu_to_le32(length);
+ cap.length_hi = cpu_to_le32(length >> 32);
+ cap.cap.offset = cpu_to_le32(offset);
+ cap.offset_hi = cpu_to_le32(offset >> 32);
+ cap.cap.id = id;
+ return virtio_pci_add_mem_cap(proxy, &cap.cap);
+}
+
static uint64_t virtio_pci_common_read(void *opaque, hwaddr addr,
unsigned size)
{
diff --git a/include/hw/virtio/virtio-pci.h b/include/hw/virtio/virtio-pci.h
index ab2051b64b..5a3f182f99 100644
--- a/include/hw/virtio/virtio-pci.h
+++ b/include/hw/virtio/virtio-pci.h
@@ -264,4 +264,8 @@ unsigned virtio_pci_optimal_num_queues(unsigned fixed_queues);
void virtio_pci_set_guest_notifier_fd_handler(VirtIODevice *vdev, VirtQueue *vq,
int n, bool assign,
bool with_irqfd);
+
+int virtio_pci_add_shm_cap(VirtIOPCIProxy *proxy, uint8_t bar, uint64_t offset,
+ uint64_t length, uint8_t id);
+
#endif
--
2.42.0.609.gbb76f46606-goog
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v17 2/9] virtio-gpu: CONTEXT_INIT feature
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 1/9] virtio: Add shared memory capability Gurchetan Singh
@ 2023-10-06 1:08 ` Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 3/9] virtio-gpu: hostmem Gurchetan Singh
` (7 subsequent siblings)
9 siblings, 0 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-06 1:08 UTC (permalink / raw)
To: qemu-devel
Cc: marcandre.lureau, akihiko.odaki, ray.huang, alex.bennee, shentey,
hi, ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
From: Antonio Caggiano <antonio.caggiano@collabora.com>
The feature can be enabled when a backend wants it.
Signed-off-by: Antonio Caggiano <antonio.caggiano@collabora.com>
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Alyssa Ross <hi@alyssa.is>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Huang Rui <ray.huang@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
hw/display/virtio-gpu-base.c | 3 +++
include/hw/virtio/virtio-gpu.h | 3 +++
2 files changed, 6 insertions(+)
diff --git a/hw/display/virtio-gpu-base.c b/hw/display/virtio-gpu-base.c
index ca1fb7b16f..4f2b0ba1f3 100644
--- a/hw/display/virtio-gpu-base.c
+++ b/hw/display/virtio-gpu-base.c
@@ -232,6 +232,9 @@ virtio_gpu_base_get_features(VirtIODevice *vdev, uint64_t features,
if (virtio_gpu_blob_enabled(g->conf)) {
features |= (1 << VIRTIO_GPU_F_RESOURCE_BLOB);
}
+ if (virtio_gpu_context_init_enabled(g->conf)) {
+ features |= (1 << VIRTIO_GPU_F_CONTEXT_INIT);
+ }
return features;
}
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index 390c4642b8..8377c365ef 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -93,6 +93,7 @@ enum virtio_gpu_base_conf_flags {
VIRTIO_GPU_FLAG_EDID_ENABLED,
VIRTIO_GPU_FLAG_DMABUF_ENABLED,
VIRTIO_GPU_FLAG_BLOB_ENABLED,
+ VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED,
};
#define virtio_gpu_virgl_enabled(_cfg) \
@@ -105,6 +106,8 @@ enum virtio_gpu_base_conf_flags {
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_DMABUF_ENABLED))
#define virtio_gpu_blob_enabled(_cfg) \
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED))
+#define virtio_gpu_context_init_enabled(_cfg) \
+ (_cfg.flags & (1 << VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED))
struct virtio_gpu_base_conf {
uint32_t max_outputs;
--
2.42.0.609.gbb76f46606-goog
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v17 3/9] virtio-gpu: hostmem
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 1/9] virtio: Add shared memory capability Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 2/9] virtio-gpu: CONTEXT_INIT feature Gurchetan Singh
@ 2023-10-06 1:08 ` Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 4/9] virtio-gpu: blob prep Gurchetan Singh
` (6 subsequent siblings)
9 siblings, 0 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-06 1:08 UTC (permalink / raw)
To: qemu-devel
Cc: marcandre.lureau, akihiko.odaki, ray.huang, alex.bennee, shentey,
hi, ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
From: Gerd Hoffmann <kraxel@redhat.com>
Use VIRTIO_GPU_SHM_ID_HOST_VISIBLE as id for virtio-gpu.
Signed-off-by: Antonio Caggiano <antonio.caggiano@collabora.com>
Tested-by: Alyssa Ross <hi@alyssa.is>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Huang Rui <ray.huang@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
hw/display/virtio-gpu-pci.c | 14 ++++++++++++++
hw/display/virtio-gpu.c | 1 +
hw/display/virtio-vga.c | 33 ++++++++++++++++++++++++---------
include/hw/virtio/virtio-gpu.h | 5 +++++
4 files changed, 44 insertions(+), 9 deletions(-)
diff --git a/hw/display/virtio-gpu-pci.c b/hw/display/virtio-gpu-pci.c
index 93f214ff58..da6a99f038 100644
--- a/hw/display/virtio-gpu-pci.c
+++ b/hw/display/virtio-gpu-pci.c
@@ -33,6 +33,20 @@ static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
DeviceState *vdev = DEVICE(g);
int i;
+ if (virtio_gpu_hostmem_enabled(g->conf)) {
+ vpci_dev->msix_bar_idx = 1;
+ vpci_dev->modern_mem_bar_idx = 2;
+ memory_region_init(&g->hostmem, OBJECT(g), "virtio-gpu-hostmem",
+ g->conf.hostmem);
+ pci_register_bar(&vpci_dev->pci_dev, 4,
+ PCI_BASE_ADDRESS_SPACE_MEMORY |
+ PCI_BASE_ADDRESS_MEM_PREFETCH |
+ PCI_BASE_ADDRESS_MEM_TYPE_64,
+ &g->hostmem);
+ virtio_pci_add_shm_cap(vpci_dev, 4, 0, g->conf.hostmem,
+ VIRTIO_GPU_SHM_ID_HOST_VISIBLE);
+ }
+
virtio_pci_force_virtio_1(vpci_dev);
if (!qdev_realize(vdev, BUS(&vpci_dev->bus), errp)) {
return;
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index 93857ad523..5585558855 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -1511,6 +1511,7 @@ static Property virtio_gpu_properties[] = {
256 * MiB),
DEFINE_PROP_BIT("blob", VirtIOGPU, parent_obj.conf.flags,
VIRTIO_GPU_FLAG_BLOB_ENABLED, false),
+ DEFINE_PROP_SIZE("hostmem", VirtIOGPU, parent_obj.conf.hostmem, 0),
DEFINE_PROP_END_OF_LIST(),
};
diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c
index e6fb0aa876..c8552ff760 100644
--- a/hw/display/virtio-vga.c
+++ b/hw/display/virtio-vga.c
@@ -115,17 +115,32 @@ static void virtio_vga_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
pci_register_bar(&vpci_dev->pci_dev, 0,
PCI_BASE_ADDRESS_MEM_PREFETCH, &vga->vram);
- /*
- * Configure virtio bar and regions
- *
- * We use bar #2 for the mmio regions, to be compatible with stdvga.
- * virtio regions are moved to the end of bar #2, to make room for
- * the stdvga mmio registers at the start of bar #2.
- */
- vpci_dev->modern_mem_bar_idx = 2;
- vpci_dev->msix_bar_idx = 4;
vpci_dev->modern_io_bar_idx = 5;
+ if (!virtio_gpu_hostmem_enabled(g->conf)) {
+ /*
+ * Configure virtio bar and regions
+ *
+ * We use bar #2 for the mmio regions, to be compatible with stdvga.
+ * virtio regions are moved to the end of bar #2, to make room for
+ * the stdvga mmio registers at the start of bar #2.
+ */
+ vpci_dev->modern_mem_bar_idx = 2;
+ vpci_dev->msix_bar_idx = 4;
+ } else {
+ vpci_dev->msix_bar_idx = 1;
+ vpci_dev->modern_mem_bar_idx = 2;
+ memory_region_init(&g->hostmem, OBJECT(g), "virtio-gpu-hostmem",
+ g->conf.hostmem);
+ pci_register_bar(&vpci_dev->pci_dev, 4,
+ PCI_BASE_ADDRESS_SPACE_MEMORY |
+ PCI_BASE_ADDRESS_MEM_PREFETCH |
+ PCI_BASE_ADDRESS_MEM_TYPE_64,
+ &g->hostmem);
+ virtio_pci_add_shm_cap(vpci_dev, 4, 0, g->conf.hostmem,
+ VIRTIO_GPU_SHM_ID_HOST_VISIBLE);
+ }
+
if (!(vpci_dev->flags & VIRTIO_PCI_FLAG_PAGE_PER_VQ)) {
/*
* with page-per-vq=off there is no padding space we can use
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index 8377c365ef..de4f624e94 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -108,12 +108,15 @@ enum virtio_gpu_base_conf_flags {
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED))
#define virtio_gpu_context_init_enabled(_cfg) \
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED))
+#define virtio_gpu_hostmem_enabled(_cfg) \
+ (_cfg.hostmem > 0)
struct virtio_gpu_base_conf {
uint32_t max_outputs;
uint32_t flags;
uint32_t xres;
uint32_t yres;
+ uint64_t hostmem;
};
struct virtio_gpu_ctrl_command {
@@ -137,6 +140,8 @@ struct VirtIOGPUBase {
int renderer_blocked;
int enable;
+ MemoryRegion hostmem;
+
struct virtio_gpu_scanout scanout[VIRTIO_GPU_MAX_SCANOUTS];
int enabled_output_bitmask;
--
2.42.0.609.gbb76f46606-goog
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v17 4/9] virtio-gpu: blob prep
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
` (2 preceding siblings ...)
2023-10-06 1:08 ` [PATCH v17 3/9] virtio-gpu: hostmem Gurchetan Singh
@ 2023-10-06 1:08 ` Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 5/9] gfxstream + rutabaga prep: added need defintions, fields, and options Gurchetan Singh
` (5 subsequent siblings)
9 siblings, 0 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-06 1:08 UTC (permalink / raw)
To: qemu-devel
Cc: marcandre.lureau, akihiko.odaki, ray.huang, alex.bennee, shentey,
hi, ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
From: Antonio Caggiano <antonio.caggiano@collabora.com>
This adds preparatory functions needed to:
- decode blob cmds
- tracking iovecs
Signed-off-by: Antonio Caggiano <antonio.caggiano@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Alyssa Ross <hi@alyssa.is>
Tested-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Huang Rui <ray.huang@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
hw/display/virtio-gpu.c | 10 +++-------
include/hw/virtio/virtio-gpu-bswap.h | 15 +++++++++++++++
include/hw/virtio/virtio-gpu.h | 5 +++++
3 files changed, 23 insertions(+), 7 deletions(-)
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index 5585558855..be16efbd38 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -33,15 +33,11 @@
#define VIRTIO_GPU_VM_VERSION 1
-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);
static void virtio_gpu_reset_bh(void *opaque);
void virtio_gpu_update_cursor_data(VirtIOGPU *g,
@@ -116,7 +112,7 @@ static void update_cursor(VirtIOGPU *g, struct virtio_gpu_update_cursor *cursor)
cursor->resource_id ? 1 : 0);
}
-static struct virtio_gpu_simple_resource *
+struct virtio_gpu_simple_resource *
virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id)
{
struct virtio_gpu_simple_resource *res;
@@ -904,8 +900,8 @@ void virtio_gpu_cleanup_mapping_iov(VirtIOGPU *g,
g_free(iov);
}
-static void virtio_gpu_cleanup_mapping(VirtIOGPU *g,
- struct virtio_gpu_simple_resource *res)
+void virtio_gpu_cleanup_mapping(VirtIOGPU *g,
+ struct virtio_gpu_simple_resource *res)
{
virtio_gpu_cleanup_mapping_iov(g, res->iov, res->iov_cnt);
res->iov = NULL;
diff --git a/include/hw/virtio/virtio-gpu-bswap.h b/include/hw/virtio/virtio-gpu-bswap.h
index 637a0585d0..dd1975e2d4 100644
--- a/include/hw/virtio/virtio-gpu-bswap.h
+++ b/include/hw/virtio/virtio-gpu-bswap.h
@@ -70,6 +70,21 @@ virtio_gpu_create_blob_bswap(struct virtio_gpu_resource_create_blob *cblob)
le64_to_cpus(&cblob->size);
}
+static inline void
+virtio_gpu_map_blob_bswap(struct virtio_gpu_resource_map_blob *mblob)
+{
+ virtio_gpu_ctrl_hdr_bswap(&mblob->hdr);
+ le32_to_cpus(&mblob->resource_id);
+ le64_to_cpus(&mblob->offset);
+}
+
+static inline void
+virtio_gpu_unmap_blob_bswap(struct virtio_gpu_resource_unmap_blob *ublob)
+{
+ virtio_gpu_ctrl_hdr_bswap(&ublob->hdr);
+ le32_to_cpus(&ublob->resource_id);
+}
+
static inline void
virtio_gpu_scanout_blob_bswap(struct virtio_gpu_set_scanout_blob *ssb)
{
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index de4f624e94..55973e112f 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -257,6 +257,9 @@ void virtio_gpu_base_fill_display_info(VirtIOGPUBase *g,
void virtio_gpu_base_generate_edid(VirtIOGPUBase *g, int scanout,
struct virtio_gpu_resp_edid *edid);
/* virtio-gpu.c */
+struct virtio_gpu_simple_resource *
+virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id);
+
void virtio_gpu_ctrl_response(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd,
struct virtio_gpu_ctrl_hdr *resp,
@@ -275,6 +278,8 @@ int virtio_gpu_create_mapping_iov(VirtIOGPU *g,
uint32_t *niov);
void virtio_gpu_cleanup_mapping_iov(VirtIOGPU *g,
struct iovec *iov, uint32_t count);
+void virtio_gpu_cleanup_mapping(VirtIOGPU *g,
+ struct virtio_gpu_simple_resource *res);
void virtio_gpu_process_cmdq(VirtIOGPU *g);
void virtio_gpu_device_realize(DeviceState *qdev, Error **errp);
void virtio_gpu_reset(VirtIODevice *vdev);
--
2.42.0.609.gbb76f46606-goog
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v17 5/9] gfxstream + rutabaga prep: added need defintions, fields, and options
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
` (3 preceding siblings ...)
2023-10-06 1:08 ` [PATCH v17 4/9] virtio-gpu: blob prep Gurchetan Singh
@ 2023-10-06 1:08 ` Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 6/9] gfxstream + rutabaga: add initial support for gfxstream Gurchetan Singh
` (4 subsequent siblings)
9 siblings, 0 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-06 1:08 UTC (permalink / raw)
To: qemu-devel
Cc: marcandre.lureau, akihiko.odaki, ray.huang, alex.bennee, shentey,
hi, ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
This modifies the common virtio-gpu.h file have the fields and
defintions needed by gfxstream/rutabaga, by VirtioGpuRutabaga.
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Alyssa Ross <hi@alyssa.is>
Tested-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
include/hw/virtio/virtio-gpu.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index 55973e112f..39018377d2 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -38,6 +38,9 @@ OBJECT_DECLARE_SIMPLE_TYPE(VirtIOGPUGL, VIRTIO_GPU_GL)
#define TYPE_VHOST_USER_GPU "vhost-user-gpu"
OBJECT_DECLARE_SIMPLE_TYPE(VhostUserGPU, VHOST_USER_GPU)
+#define TYPE_VIRTIO_GPU_RUTABAGA "virtio-gpu-rutabaga-device"
+OBJECT_DECLARE_SIMPLE_TYPE(VirtIOGPURutabaga, VIRTIO_GPU_RUTABAGA)
+
struct virtio_gpu_simple_resource {
uint32_t resource_id;
uint32_t width;
@@ -94,6 +97,7 @@ enum virtio_gpu_base_conf_flags {
VIRTIO_GPU_FLAG_DMABUF_ENABLED,
VIRTIO_GPU_FLAG_BLOB_ENABLED,
VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED,
+ VIRTIO_GPU_FLAG_RUTABAGA_ENABLED,
};
#define virtio_gpu_virgl_enabled(_cfg) \
@@ -108,6 +112,8 @@ enum virtio_gpu_base_conf_flags {
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED))
#define virtio_gpu_context_init_enabled(_cfg) \
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED))
+#define virtio_gpu_rutabaga_enabled(_cfg) \
+ (_cfg.flags & (1 << VIRTIO_GPU_FLAG_RUTABAGA_ENABLED))
#define virtio_gpu_hostmem_enabled(_cfg) \
(_cfg.hostmem > 0)
@@ -232,6 +238,27 @@ 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, \
--
2.42.0.609.gbb76f46606-goog
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v17 6/9] gfxstream + rutabaga: add initial support for gfxstream
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
` (4 preceding siblings ...)
2023-10-06 1:08 ` [PATCH v17 5/9] gfxstream + rutabaga prep: added need defintions, fields, and options Gurchetan Singh
@ 2023-10-06 1:08 ` Gurchetan Singh
2023-10-09 7:11 ` Marc-André Lureau
2023-10-31 1:25 ` [PATCH] virtio-gpu-rutabaga: Add empty interface to fix arm64 crash Cong Liu
2023-10-06 1:08 ` [PATCH v17 7/9] gfxstream + rutabaga: meson support Gurchetan Singh
` (3 subsequent siblings)
9 siblings, 2 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-06 1:08 UTC (permalink / raw)
To: qemu-devel
Cc: marcandre.lureau, akihiko.odaki, ray.huang, alex.bennee, shentey,
hi, ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
This adds initial support for gfxstream and cross-domain. Both
features rely on virtio-gpu blob resources and context types, which
are also implemented in this patch.
gfxstream has a long and illustrious history in Android graphics
paravirtualization. It has been powering graphics in the Android
Studio Emulator for more than a decade, which is the main developer
platform.
Originally conceived by Jesse Hall, it was first known as "EmuGL" [a].
The key design characteristic was a 1:1 threading model and
auto-generation, which fit nicely with the OpenGLES spec. It also
allowed easy layering with ANGLE on the host, which provides the GLES
implementations on Windows or MacOS enviroments.
gfxstream has traditionally been maintained by a single engineer, and
between 2015 to 2021, the goldfish throne passed to Frank Yang.
Historians often remark this glorious reign ("pax gfxstreama" is the
academic term) was comparable to that of Augustus and both Queen
Elizabeths. Just to name a few accomplishments in a resplendent
panoply: higher versions of GLES, address space graphics, snapshot
support and CTS compliant Vulkan [b].
One major drawback was the use of out-of-tree goldfish drivers.
Android engineers didn't know much about DRM/KMS and especially TTM so
a simple guest to host pipe was conceived.
Luckily, virtio-gpu 3D started to emerge in 2016 due to the work of
the Mesa/virglrenderer communities. In 2018, the initial virtio-gpu
port of gfxstream was done by Cuttlefish enthusiast Alistair Delva.
It was a symbol compatible replacement of virglrenderer [c] and named
"AVDVirglrenderer". This implementation forms the basis of the
current gfxstream host implementation still in use today.
cross-domain support follows a similar arc. Originally conceived by
Wayland aficionado David Reveman and crosvm enjoyer Zach Reizner in
2018, it initially relied on the downstream "virtio-wl" device.
In 2020 and 2021, virtio-gpu was extended to include blob resources
and multiple timelines by yours truly, features gfxstream/cross-domain
both require to function correctly.
Right now, we stand at the precipice of a truly fantastic possibility:
the Android Emulator powered by upstream QEMU and upstream Linux
kernel. gfxstream will then be packaged properfully, and app
developers can even fix gfxstream bugs on their own if they encounter
them.
It's been quite the ride, my friends. Where will gfxstream head next,
nobody really knows. I wouldn't be surprised if it's around for
another decade, maintained by a new generation of Android graphics
enthusiasts.
Technical details:
- Very simple initial display integration: just used Pixman
- Largely, 1:1 mapping of virtio-gpu hypercalls to rutabaga function
calls
Next steps for Android VMs:
- The next step would be improving display integration and UI interfaces
with the goal of the QEMU upstream graphics being in an emulator
release [d].
Next steps for Linux VMs for display virtualization:
- For widespread distribution, someone needs to package Sommelier or the
wayland-proxy-virtwl [e] ideally into Debian main. In addition, newer
versions of the Linux kernel come with DRM_VIRTIO_GPU_KMS option,
which allows disabling KMS hypercalls. If anyone cares enough, it'll
probably be possible to build a custom VM variant that uses this display
virtualization strategy.
[a] https://android-review.googlesource.com/c/platform/development/+/34470
[b] https://android-review.googlesource.com/q/topic:%22vulkan-hostconnection-start%22
[c] https://android-review.googlesource.com/c/device/generic/goldfish-opengl/+/761927
[d] https://developer.android.com/studio/releases/emulator
[e] https://github.com/talex5/wayland-proxy-virtwl
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Alyssa Ross <hi@alyssa.is>
Tested-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
hw/display/virtio-gpu-pci-rutabaga.c | 47 ++
hw/display/virtio-gpu-rutabaga.c | 1113 ++++++++++++++++++++++++++
hw/display/virtio-vga-rutabaga.c | 50 ++
3 files changed, 1210 insertions(+)
create mode 100644 hw/display/virtio-gpu-pci-rutabaga.c
create mode 100644 hw/display/virtio-gpu-rutabaga.c
create mode 100644 hw/display/virtio-vga-rutabaga.c
diff --git a/hw/display/virtio-gpu-pci-rutabaga.c b/hw/display/virtio-gpu-pci-rutabaga.c
new file mode 100644
index 0000000000..c96729e198
--- /dev/null
+++ b/hw/display/virtio-gpu-pci-rutabaga.c
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu/module.h"
+#include "hw/pci/pci.h"
+#include "hw/qdev-properties.h"
+#include "hw/virtio/virtio.h"
+#include "hw/virtio/virtio-bus.h"
+#include "hw/virtio/virtio-gpu-pci.h"
+#include "qom/object.h"
+
+#define TYPE_VIRTIO_GPU_RUTABAGA_PCI "virtio-gpu-rutabaga-pci"
+OBJECT_DECLARE_SIMPLE_TYPE(VirtIOGPURutabagaPCI, VIRTIO_GPU_RUTABAGA_PCI)
+
+struct VirtIOGPURutabagaPCI {
+ VirtIOGPUPCIBase parent_obj;
+
+ VirtIOGPURutabaga vdev;
+};
+
+static void virtio_gpu_rutabaga_initfn(Object *obj)
+{
+ VirtIOGPURutabagaPCI *dev = VIRTIO_GPU_RUTABAGA_PCI(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VIRTIO_GPU_RUTABAGA);
+ VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
+}
+
+static const TypeInfo virtio_gpu_rutabaga_pci_info[] = {
+ {
+ .name = TYPE_VIRTIO_GPU_RUTABAGA_PCI,
+ .parent = TYPE_VIRTIO_GPU_PCI_BASE,
+ .instance_size = sizeof(VirtIOGPURutabagaPCI),
+ .instance_init = virtio_gpu_rutabaga_initfn,
+ .interfaces = (InterfaceInfo[]) {
+ { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+ }
+ },
+};
+
+DEFINE_TYPES(virtio_gpu_rutabaga_pci_info)
+
+module_obj(TYPE_VIRTIO_GPU_RUTABAGA_PCI);
+module_kconfig(VIRTIO_PCI);
+module_dep("hw-display-virtio-gpu-pci");
diff --git a/hw/display/virtio-gpu-rutabaga.c b/hw/display/virtio-gpu-rutabaga.c
new file mode 100644
index 0000000000..e6f799a14c
--- /dev/null
+++ b/hw/display/virtio-gpu-rutabaga.c
@@ -0,0 +1,1113 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu/error-report.h"
+#include "qemu/iov.h"
+#include "trace.h"
+#include "hw/virtio/virtio.h"
+#include "hw/virtio/virtio-gpu.h"
+#include "hw/virtio/virtio-gpu-pixman.h"
+#include "hw/virtio/virtio-iommu.h"
+
+#include <glib/gmem.h>
+#include <rutabaga_gfx/rutabaga_gfx_ffi.h>
+
+#define CHECK(condition, cmd) \
+ do { \
+ if (!(condition)) { \
+ error_report("CHECK failed in %s() %s:" "%d", __func__, \
+ __FILE__, __LINE__); \
+ (cmd)->error = VIRTIO_GPU_RESP_ERR_UNSPEC; \
+ return; \
+ } \
+ } while (0)
+
+struct rutabaga_aio_data {
+ struct VirtIOGPURutabaga *vr;
+ struct rutabaga_fence fence;
+};
+
+static void
+virtio_gpu_rutabaga_update_cursor(VirtIOGPU *g, struct virtio_gpu_scanout *s,
+ uint32_t resource_id)
+{
+ struct virtio_gpu_simple_resource *res;
+ struct rutabaga_transfer transfer = { 0 };
+ struct iovec transfer_iovec;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ res = virtio_gpu_find_resource(g, resource_id);
+ if (!res) {
+ return;
+ }
+
+ if (res->width != s->current_cursor->width ||
+ res->height != s->current_cursor->height) {
+ return;
+ }
+
+ transfer.x = 0;
+ transfer.y = 0;
+ transfer.z = 0;
+ transfer.w = res->width;
+ transfer.h = res->height;
+ transfer.d = 1;
+
+ transfer_iovec.iov_base = s->current_cursor->data;
+ transfer_iovec.iov_len = res->width * res->height * 4;
+
+ rutabaga_resource_transfer_read(vr->rutabaga, 0,
+ resource_id, &transfer,
+ &transfer_iovec);
+}
+
+static void
+virtio_gpu_rutabaga_gl_flushed(VirtIOGPUBase *b)
+{
+ VirtIOGPU *g = VIRTIO_GPU(b);
+ virtio_gpu_process_cmdq(g);
+}
+
+static void
+rutabaga_cmd_create_resource_2d(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct rutabaga_create_3d rc_3d = { 0 };
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_resource_create_2d c2d;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(c2d);
+ trace_virtio_gpu_cmd_res_create_2d(c2d.resource_id, c2d.format,
+ c2d.width, c2d.height);
+
+ rc_3d.target = 2;
+ rc_3d.format = c2d.format;
+ rc_3d.bind = (1 << 1);
+ rc_3d.width = c2d.width;
+ rc_3d.height = c2d.height;
+ rc_3d.depth = 1;
+ rc_3d.array_size = 1;
+ rc_3d.last_level = 0;
+ rc_3d.nr_samples = 0;
+ rc_3d.flags = VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP;
+
+ result = rutabaga_resource_create_3d(vr->rutabaga, c2d.resource_id, &rc_3d);
+ CHECK(!result, cmd);
+
+ res = g_new0(struct virtio_gpu_simple_resource, 1);
+ res->width = c2d.width;
+ res->height = c2d.height;
+ res->format = c2d.format;
+ res->resource_id = c2d.resource_id;
+
+ QTAILQ_INSERT_HEAD(&g->reslist, res, next);
+}
+
+static void
+rutabaga_cmd_create_resource_3d(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct rutabaga_create_3d rc_3d = { 0 };
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_resource_create_3d c3d;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(c3d);
+
+ trace_virtio_gpu_cmd_res_create_3d(c3d.resource_id, c3d.format,
+ c3d.width, c3d.height, c3d.depth);
+
+ rc_3d.target = c3d.target;
+ rc_3d.format = c3d.format;
+ rc_3d.bind = c3d.bind;
+ rc_3d.width = c3d.width;
+ rc_3d.height = c3d.height;
+ rc_3d.depth = c3d.depth;
+ rc_3d.array_size = c3d.array_size;
+ rc_3d.last_level = c3d.last_level;
+ rc_3d.nr_samples = c3d.nr_samples;
+ rc_3d.flags = c3d.flags;
+
+ result = rutabaga_resource_create_3d(vr->rutabaga, c3d.resource_id, &rc_3d);
+ CHECK(!result, cmd);
+
+ res = g_new0(struct virtio_gpu_simple_resource, 1);
+ res->width = c3d.width;
+ res->height = c3d.height;
+ res->format = c3d.format;
+ res->resource_id = c3d.resource_id;
+
+ QTAILQ_INSERT_HEAD(&g->reslist, res, next);
+}
+
+static void
+rutabaga_cmd_resource_unref(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_resource_unref unref;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(unref);
+
+ trace_virtio_gpu_cmd_res_unref(unref.resource_id);
+
+ res = virtio_gpu_find_resource(g, unref.resource_id);
+ CHECK(res, cmd);
+
+ result = rutabaga_resource_unref(vr->rutabaga, unref.resource_id);
+ CHECK(!result, cmd);
+
+ if (res->image) {
+ pixman_image_unref(res->image);
+ }
+
+ QTAILQ_REMOVE(&g->reslist, res, next);
+ g_free(res);
+}
+
+static void
+rutabaga_cmd_context_create(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct virtio_gpu_ctx_create cc;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(cc);
+ trace_virtio_gpu_cmd_ctx_create(cc.hdr.ctx_id,
+ cc.debug_name);
+
+ result = rutabaga_context_create(vr->rutabaga, cc.hdr.ctx_id,
+ cc.context_init, cc.debug_name, cc.nlen);
+ CHECK(!result, cmd);
+}
+
+static void
+rutabaga_cmd_context_destroy(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct virtio_gpu_ctx_destroy cd;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(cd);
+ trace_virtio_gpu_cmd_ctx_destroy(cd.hdr.ctx_id);
+
+ result = rutabaga_context_destroy(vr->rutabaga, cd.hdr.ctx_id);
+ CHECK(!result, cmd);
+}
+
+static void
+rutabaga_cmd_resource_flush(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result, i;
+ struct virtio_gpu_scanout *scanout = NULL;
+ struct virtio_gpu_simple_resource *res;
+ struct rutabaga_transfer transfer = { 0 };
+ struct iovec transfer_iovec;
+ struct virtio_gpu_resource_flush rf;
+ bool found = false;
+
+ VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+ if (vr->headless) {
+ return;
+ }
+
+ VIRTIO_GPU_FILL_CMD(rf);
+ 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);
+ CHECK(res, cmd);
+
+ for (i = 0; i < vb->conf.max_outputs; i++) {
+ scanout = &vb->scanout[i];
+ if (i == res->scanout_bitmask) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ return;
+ }
+
+ transfer.x = 0;
+ transfer.y = 0;
+ transfer.z = 0;
+ transfer.w = res->width;
+ transfer.h = res->height;
+ transfer.d = 1;
+
+ transfer_iovec.iov_base = pixman_image_get_data(res->image);
+ transfer_iovec.iov_len = res->width * res->height * 4;
+
+ result = rutabaga_resource_transfer_read(vr->rutabaga, 0,
+ rf.resource_id, &transfer,
+ &transfer_iovec);
+ CHECK(!result, cmd);
+ dpy_gfx_update_full(scanout->con);
+}
+
+static void
+rutabaga_cmd_set_scanout(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
+{
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_scanout *scanout = NULL;
+ struct virtio_gpu_set_scanout ss;
+
+ VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+ if (vr->headless) {
+ return;
+ }
+
+ VIRTIO_GPU_FILL_CMD(ss);
+ trace_virtio_gpu_cmd_set_scanout(ss.scanout_id, ss.resource_id,
+ ss.r.width, ss.r.height, ss.r.x, ss.r.y);
+
+ CHECK(ss.scanout_id < VIRTIO_GPU_MAX_SCANOUTS, cmd);
+ scanout = &vb->scanout[ss.scanout_id];
+
+ if (ss.resource_id == 0) {
+ dpy_gfx_replace_surface(scanout->con, NULL);
+ dpy_gl_scanout_disable(scanout->con);
+ return;
+ }
+
+ res = virtio_gpu_find_resource(g, ss.resource_id);
+ CHECK(res, cmd);
+
+ if (!res->image) {
+ pixman_format_code_t pformat;
+ pformat = virtio_gpu_get_pixman_format(res->format);
+ CHECK(pformat, cmd);
+
+ res->image = pixman_image_create_bits(pformat,
+ res->width,
+ res->height,
+ NULL, 0);
+ CHECK(res->image, cmd);
+ pixman_image_ref(res->image);
+ }
+
+ vb->enable = 1;
+
+ /* realloc the surface ptr */
+ scanout->ds = qemu_create_displaysurface_pixman(res->image);
+ dpy_gfx_replace_surface(scanout->con, NULL);
+ dpy_gfx_replace_surface(scanout->con, scanout->ds);
+ res->scanout_bitmask = ss.scanout_id;
+}
+
+static void
+rutabaga_cmd_submit_3d(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct virtio_gpu_cmd_submit cs;
+ struct rutabaga_command rutabaga_cmd = { 0 };
+ g_autofree uint8_t *buf = NULL;
+ size_t s;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(cs);
+ trace_virtio_gpu_cmd_ctx_submit(cs.hdr.ctx_id, cs.size);
+
+ buf = g_new0(uint8_t, cs.size);
+ s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num,
+ sizeof(cs), buf, cs.size);
+ CHECK(s == cs.size, cmd);
+
+ rutabaga_cmd.ctx_id = cs.hdr.ctx_id;
+ rutabaga_cmd.cmd = buf;
+ rutabaga_cmd.cmd_size = cs.size;
+
+ result = rutabaga_submit_command(vr->rutabaga, &rutabaga_cmd);
+ CHECK(!result, cmd);
+}
+
+static void
+rutabaga_cmd_transfer_to_host_2d(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct rutabaga_transfer transfer = { 0 };
+ struct virtio_gpu_transfer_to_host_2d t2d;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(t2d);
+ trace_virtio_gpu_cmd_res_xfer_toh_2d(t2d.resource_id);
+
+ transfer.x = t2d.r.x;
+ transfer.y = t2d.r.y;
+ transfer.z = 0;
+ transfer.w = t2d.r.width;
+ transfer.h = t2d.r.height;
+ transfer.d = 1;
+
+ result = rutabaga_resource_transfer_write(vr->rutabaga, 0, t2d.resource_id,
+ &transfer);
+ CHECK(!result, cmd);
+}
+
+static void
+rutabaga_cmd_transfer_to_host_3d(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct rutabaga_transfer transfer = { 0 };
+ struct virtio_gpu_transfer_host_3d t3d;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(t3d);
+ trace_virtio_gpu_cmd_res_xfer_toh_3d(t3d.resource_id);
+
+ transfer.x = t3d.box.x;
+ transfer.y = t3d.box.y;
+ transfer.z = t3d.box.z;
+ transfer.w = t3d.box.w;
+ transfer.h = t3d.box.h;
+ transfer.d = t3d.box.d;
+ transfer.level = t3d.level;
+ transfer.stride = t3d.stride;
+ transfer.layer_stride = t3d.layer_stride;
+ transfer.offset = t3d.offset;
+
+ result = rutabaga_resource_transfer_write(vr->rutabaga, t3d.hdr.ctx_id,
+ t3d.resource_id, &transfer);
+ CHECK(!result, cmd);
+}
+
+static void
+rutabaga_cmd_transfer_from_host_3d(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct rutabaga_transfer transfer = { 0 };
+ struct virtio_gpu_transfer_host_3d t3d;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(t3d);
+ trace_virtio_gpu_cmd_res_xfer_fromh_3d(t3d.resource_id);
+
+ transfer.x = t3d.box.x;
+ transfer.y = t3d.box.y;
+ transfer.z = t3d.box.z;
+ transfer.w = t3d.box.w;
+ transfer.h = t3d.box.h;
+ transfer.d = t3d.box.d;
+ transfer.level = t3d.level;
+ transfer.stride = t3d.stride;
+ transfer.layer_stride = t3d.layer_stride;
+ transfer.offset = t3d.offset;
+
+ result = rutabaga_resource_transfer_read(vr->rutabaga, t3d.hdr.ctx_id,
+ t3d.resource_id, &transfer, NULL);
+ CHECK(!result, cmd);
+}
+
+static void
+rutabaga_cmd_attach_backing(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
+{
+ struct rutabaga_iovecs vecs = { 0 };
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_resource_attach_backing att_rb;
+ int ret;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(att_rb);
+ trace_virtio_gpu_cmd_res_back_attach(att_rb.resource_id);
+
+ res = virtio_gpu_find_resource(g, att_rb.resource_id);
+ CHECK(res, cmd);
+ CHECK(!res->iov, cmd);
+
+ ret = virtio_gpu_create_mapping_iov(g, att_rb.nr_entries, sizeof(att_rb),
+ cmd, NULL, &res->iov, &res->iov_cnt);
+ CHECK(!ret, cmd);
+
+ vecs.iovecs = res->iov;
+ vecs.num_iovecs = res->iov_cnt;
+
+ ret = rutabaga_resource_attach_backing(vr->rutabaga, att_rb.resource_id,
+ &vecs);
+ if (ret != 0) {
+ virtio_gpu_cleanup_mapping(g, res);
+ }
+
+ CHECK(!ret, cmd);
+}
+
+static void
+rutabaga_cmd_detach_backing(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
+{
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_resource_detach_backing detach_rb;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(detach_rb);
+ trace_virtio_gpu_cmd_res_back_detach(detach_rb.resource_id);
+
+ res = virtio_gpu_find_resource(g, detach_rb.resource_id);
+ CHECK(res, cmd);
+
+ rutabaga_resource_detach_backing(vr->rutabaga,
+ detach_rb.resource_id);
+
+ virtio_gpu_cleanup_mapping(g, res);
+}
+
+static void
+rutabaga_cmd_ctx_attach_resource(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct virtio_gpu_ctx_resource att_res;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(att_res);
+ trace_virtio_gpu_cmd_ctx_res_attach(att_res.hdr.ctx_id,
+ att_res.resource_id);
+
+ result = rutabaga_context_attach_resource(vr->rutabaga, att_res.hdr.ctx_id,
+ att_res.resource_id);
+ CHECK(!result, cmd);
+}
+
+static void
+rutabaga_cmd_ctx_detach_resource(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct virtio_gpu_ctx_resource det_res;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(det_res);
+ trace_virtio_gpu_cmd_ctx_res_detach(det_res.hdr.ctx_id,
+ det_res.resource_id);
+
+ result = rutabaga_context_detach_resource(vr->rutabaga, det_res.hdr.ctx_id,
+ det_res.resource_id);
+ CHECK(!result, cmd);
+}
+
+static void
+rutabaga_cmd_get_capset_info(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct virtio_gpu_get_capset_info info;
+ struct virtio_gpu_resp_capset_info resp;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(info);
+
+ result = rutabaga_get_capset_info(vr->rutabaga, info.capset_index,
+ &resp.capset_id, &resp.capset_max_version,
+ &resp.capset_max_size);
+ CHECK(!result, cmd);
+
+ resp.hdr.type = VIRTIO_GPU_RESP_OK_CAPSET_INFO;
+ virtio_gpu_ctrl_response(g, cmd, &resp.hdr, sizeof(resp));
+}
+
+static void
+rutabaga_cmd_get_capset(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ struct virtio_gpu_get_capset gc;
+ struct virtio_gpu_resp_capset *resp;
+ uint32_t capset_size, capset_version;
+ uint32_t current_id, i;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(gc);
+ for (i = 0; i < vr->num_capsets; i++) {
+ result = rutabaga_get_capset_info(vr->rutabaga, i,
+ ¤t_id, &capset_version,
+ &capset_size);
+ CHECK(!result, cmd);
+
+ if (current_id == gc.capset_id) {
+ break;
+ }
+ }
+
+ CHECK(i < vr->num_capsets, cmd);
+
+ resp = g_malloc0(sizeof(*resp) + capset_size);
+ resp->hdr.type = VIRTIO_GPU_RESP_OK_CAPSET;
+ rutabaga_get_capset(vr->rutabaga, gc.capset_id, gc.capset_version,
+ resp->capset_data, capset_size);
+
+ virtio_gpu_ctrl_response(g, cmd, &resp->hdr, sizeof(*resp) + capset_size);
+ g_free(resp);
+}
+
+static void
+rutabaga_cmd_resource_create_blob(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int result;
+ struct rutabaga_iovecs vecs = { 0 };
+ g_autofree struct virtio_gpu_simple_resource *res = NULL;
+ struct virtio_gpu_resource_create_blob cblob;
+ struct rutabaga_create_blob rc_blob = { 0 };
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(cblob);
+ trace_virtio_gpu_cmd_res_create_blob(cblob.resource_id, cblob.size);
+
+ CHECK(cblob.resource_id != 0, cmd);
+
+ 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_HOST3D) {
+ result = virtio_gpu_create_mapping_iov(g, cblob.nr_entries,
+ sizeof(cblob), cmd, &res->addrs,
+ &res->iov, &res->iov_cnt);
+ CHECK(!result, cmd);
+ }
+
+ rc_blob.blob_id = cblob.blob_id;
+ rc_blob.blob_mem = cblob.blob_mem;
+ rc_blob.blob_flags = cblob.blob_flags;
+ rc_blob.size = cblob.size;
+
+ vecs.iovecs = res->iov;
+ vecs.num_iovecs = res->iov_cnt;
+
+ result = rutabaga_resource_create_blob(vr->rutabaga, cblob.hdr.ctx_id,
+ cblob.resource_id, &rc_blob, &vecs,
+ NULL);
+
+ if (result && cblob.blob_mem != VIRTIO_GPU_BLOB_MEM_HOST3D) {
+ virtio_gpu_cleanup_mapping(g, res);
+ }
+
+ CHECK(!result, cmd);
+
+ QTAILQ_INSERT_HEAD(&g->reslist, res, next);
+ res = NULL;
+}
+
+static void
+rutabaga_cmd_resource_map_blob(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ uint32_t map_info = 0;
+ uint32_t slot = 0;
+ struct virtio_gpu_simple_resource *res;
+ struct rutabaga_mapping mapping = { 0 };
+ struct virtio_gpu_resource_map_blob mblob;
+ struct virtio_gpu_resp_map_info resp = { 0 };
+
+ VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(mblob);
+
+ CHECK(mblob.resource_id != 0, cmd);
+
+ res = virtio_gpu_find_resource(g, mblob.resource_id);
+ CHECK(res, cmd);
+
+ result = rutabaga_resource_map_info(vr->rutabaga, mblob.resource_id,
+ &map_info);
+ CHECK(!result, cmd);
+
+ /*
+ * RUTABAGA_MAP_ACCESS_* flags are not part of the virtio-gpu spec, but do
+ * exist to potentially allow the hypervisor to restrict write access to
+ * memory. QEMU does not need to use this functionality at the moment.
+ */
+ resp.map_info = map_info & RUTABAGA_MAP_CACHE_MASK;
+
+ result = rutabaga_resource_map(vr->rutabaga, mblob.resource_id, &mapping);
+ CHECK(!result, cmd);
+
+ /*
+ * There is small risk of the MemoryRegion dereferencing the pointer after
+ * rutabaga unmaps it. Please see discussion here:
+ *
+ * https://lists.gnu.org/archive/html/qemu-devel/2023-09/msg05141.html
+ *
+ * It is highly unlikely to happen in practice and doesn't affect known
+ * use cases. However, it should be fixed and is noted here for posterity.
+ */
+ for (slot = 0; slot < MAX_SLOTS; slot++) {
+ if (vr->memory_regions[slot].used) {
+ continue;
+ }
+
+ MemoryRegion *mr = &(vr->memory_regions[slot].mr);
+ memory_region_init_ram_ptr(mr, OBJECT(vr), "blob", mapping.size,
+ mapping.ptr);
+ memory_region_add_subregion(&vb->hostmem, mblob.offset, mr);
+ vr->memory_regions[slot].resource_id = mblob.resource_id;
+ vr->memory_regions[slot].used = 1;
+ break;
+ }
+
+ if (slot >= MAX_SLOTS) {
+ result = rutabaga_resource_unmap(vr->rutabaga, mblob.resource_id);
+ CHECK(!result, cmd);
+ }
+
+ CHECK(slot < MAX_SLOTS, cmd);
+
+ resp.hdr.type = VIRTIO_GPU_RESP_OK_MAP_INFO;
+ virtio_gpu_ctrl_response(g, cmd, &resp.hdr, sizeof(resp));
+}
+
+static void
+rutabaga_cmd_resource_unmap_blob(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ int32_t result;
+ uint32_t slot = 0;
+ struct virtio_gpu_simple_resource *res;
+ struct virtio_gpu_resource_unmap_blob ublob;
+
+ VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(ublob);
+
+ CHECK(ublob.resource_id != 0, cmd);
+
+ res = virtio_gpu_find_resource(g, ublob.resource_id);
+ CHECK(res, cmd);
+
+ for (slot = 0; slot < MAX_SLOTS; slot++) {
+ if (vr->memory_regions[slot].resource_id != ublob.resource_id) {
+ continue;
+ }
+
+ MemoryRegion *mr = &(vr->memory_regions[slot].mr);
+ memory_region_del_subregion(&vb->hostmem, mr);
+
+ vr->memory_regions[slot].resource_id = 0;
+ vr->memory_regions[slot].used = 0;
+ break;
+ }
+
+ CHECK(slot < MAX_SLOTS, cmd);
+ result = rutabaga_resource_unmap(vr->rutabaga, res->resource_id);
+ CHECK(!result, cmd);
+}
+
+static void
+virtio_gpu_rutabaga_process_cmd(VirtIOGPU *g,
+ struct virtio_gpu_ctrl_command *cmd)
+{
+ struct rutabaga_fence fence = { 0 };
+ int32_t result;
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ VIRTIO_GPU_FILL_CMD(cmd->cmd_hdr);
+
+ switch (cmd->cmd_hdr.type) {
+ case VIRTIO_GPU_CMD_CTX_CREATE:
+ rutabaga_cmd_context_create(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_CTX_DESTROY:
+ rutabaga_cmd_context_destroy(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_RESOURCE_CREATE_2D:
+ rutabaga_cmd_create_resource_2d(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_RESOURCE_CREATE_3D:
+ rutabaga_cmd_create_resource_3d(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_SUBMIT_3D:
+ rutabaga_cmd_submit_3d(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D:
+ rutabaga_cmd_transfer_to_host_2d(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D:
+ rutabaga_cmd_transfer_to_host_3d(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D:
+ rutabaga_cmd_transfer_from_host_3d(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING:
+ rutabaga_cmd_attach_backing(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING:
+ rutabaga_cmd_detach_backing(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_SET_SCANOUT:
+ rutabaga_cmd_set_scanout(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_RESOURCE_FLUSH:
+ rutabaga_cmd_resource_flush(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_RESOURCE_UNREF:
+ rutabaga_cmd_resource_unref(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE:
+ rutabaga_cmd_ctx_attach_resource(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE:
+ rutabaga_cmd_ctx_detach_resource(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_GET_CAPSET_INFO:
+ rutabaga_cmd_get_capset_info(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_GET_CAPSET:
+ rutabaga_cmd_get_capset(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_GET_DISPLAY_INFO:
+ virtio_gpu_get_display_info(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_GET_EDID:
+ virtio_gpu_get_edid(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB:
+ rutabaga_cmd_resource_create_blob(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB:
+ rutabaga_cmd_resource_map_blob(g, cmd);
+ break;
+ case VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB:
+ rutabaga_cmd_resource_unmap_blob(g, cmd);
+ break;
+ default:
+ cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
+ break;
+ }
+
+ if (cmd->finished) {
+ return;
+ }
+ if (cmd->error) {
+ error_report("%s: ctrl 0x%x, error 0x%x", __func__,
+ cmd->cmd_hdr.type, cmd->error);
+ virtio_gpu_ctrl_response_nodata(g, cmd, cmd->error);
+ return;
+ }
+ if (!(cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE)) {
+ virtio_gpu_ctrl_response_nodata(g, cmd, VIRTIO_GPU_RESP_OK_NODATA);
+ return;
+ }
+
+ fence.flags = cmd->cmd_hdr.flags;
+ fence.ctx_id = cmd->cmd_hdr.ctx_id;
+ fence.fence_id = cmd->cmd_hdr.fence_id;
+ fence.ring_idx = cmd->cmd_hdr.ring_idx;
+
+ trace_virtio_gpu_fence_ctrl(cmd->cmd_hdr.fence_id, cmd->cmd_hdr.type);
+
+ result = rutabaga_create_fence(vr->rutabaga, &fence);
+ CHECK(!result, cmd);
+}
+
+static void
+virtio_gpu_rutabaga_aio_cb(void *opaque)
+{
+ struct rutabaga_aio_data *data = opaque;
+ VirtIOGPU *g = VIRTIO_GPU(data->vr);
+ struct rutabaga_fence fence_data = data->fence;
+ struct virtio_gpu_ctrl_command *cmd, *tmp;
+
+ uint32_t signaled_ctx_specific = fence_data.flags &
+ RUTABAGA_FLAG_INFO_RING_IDX;
+
+ QTAILQ_FOREACH_SAFE(cmd, &g->fenceq, next, tmp) {
+ /*
+ * Due to context specific timelines.
+ */
+ uint32_t target_ctx_specific = cmd->cmd_hdr.flags &
+ RUTABAGA_FLAG_INFO_RING_IDX;
+
+ if (signaled_ctx_specific != target_ctx_specific) {
+ continue;
+ }
+
+ if (signaled_ctx_specific &&
+ (cmd->cmd_hdr.ring_idx != fence_data.ring_idx)) {
+ continue;
+ }
+
+ if (cmd->cmd_hdr.fence_id > fence_data.fence_id) {
+ continue;
+ }
+
+ trace_virtio_gpu_fence_resp(cmd->cmd_hdr.fence_id);
+ virtio_gpu_ctrl_response_nodata(g, cmd, VIRTIO_GPU_RESP_OK_NODATA);
+ QTAILQ_REMOVE(&g->fenceq, cmd, next);
+ g_free(cmd);
+ }
+
+ g_free(data);
+}
+
+static void
+virtio_gpu_rutabaga_fence_cb(uint64_t user_data,
+ const struct rutabaga_fence *fence) {
+ struct rutabaga_aio_data *data;
+ VirtIOGPU *g = (VirtIOGPU *)user_data;
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ /*
+ * gfxstream and both cross-domain (and even newer versions virglrenderer:
+ * see VIRGL_RENDERER_ASYNC_FENCE_CB) like to signal fence completion on
+ * threads ("callback threads") that are different from the thread that
+ * processes the command queue ("main thread").
+ *
+ * crosvm and other virtio-gpu 1.1 implementations enable callback threads
+ * via locking. However, on QEMU a deadlock is observed if
+ * virtio_gpu_ctrl_response_nodata(..) [used in the fence callback] is used
+ * from a thread that is not the main thread.
+ *
+ * The reason is QEMU's internal locking is designed to work with QEMU
+ * threads (see rcu_register_thread()) and not generic C/C++/Rust threads.
+ * For now, we can workaround this by scheduling the return of the
+ * fence descriptors on the main thread.
+ */
+
+ data = g_new0(struct rutabaga_aio_data, 1);
+ data->vr = vr;
+ data->fence = *fence;
+ aio_bh_schedule_oneshot(qemu_get_aio_context(),
+ virtio_gpu_rutabaga_aio_cb,
+ data);
+}
+
+static void
+virtio_gpu_rutabaga_debug_cb(uint64_t user_data,
+ const struct rutabaga_debug *debug) {
+
+ if (debug->debug_type == RUTABAGA_DEBUG_ERROR) {
+ error_report("%s", debug->message);
+ } else if (debug->debug_type == RUTABAGA_DEBUG_WARN) {
+ warn_report("%s", debug->message);
+ } else if (debug->debug_type == RUTABAGA_DEBUG_INFO) {
+ info_report("%s", debug->message);
+ }
+}
+
+static bool virtio_gpu_rutabaga_init(VirtIOGPU *g, Error **errp)
+{
+ int result;
+ struct rutabaga_builder builder = { 0 };
+ struct rutabaga_channel channel = { 0 };
+ struct rutabaga_channels channels = { 0 };
+
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+ vr->rutabaga = NULL;
+
+ builder.wsi = RUTABAGA_WSI_SURFACELESS;
+ /*
+ * Currently, if WSI is specified, the only valid strings are "surfaceless"
+ * or "headless". Surfaceless doesn't create a native window surface, but
+ * does copy from the render target to the Pixman buffer if a virtio-gpu
+ * 2D hypercall is issued. Surfacless is the default.
+ *
+ * Headless is like surfaceless, but doesn't copy to the Pixman buffer. The
+ * use case is automated testing environments where there is no need to view
+ * results.
+ *
+ * In the future, more performant virtio-gpu 2D UI integration may be added.
+ */
+ if (vr->wsi) {
+ if (g_str_equal(vr->wsi, "surfaceless")) {
+ vr->headless = false;
+ } else if (g_str_equal(vr->wsi, "headless")) {
+ vr->headless = true;
+ } else {
+ error_setg(errp, "invalid wsi option selected");
+ return false;
+ }
+ }
+
+ builder.fence_cb = virtio_gpu_rutabaga_fence_cb;
+ builder.debug_cb = virtio_gpu_rutabaga_debug_cb;
+ builder.capset_mask = vr->capset_mask;
+ builder.user_data = (uint64_t)g;
+
+ /*
+ * If the user doesn't specify the wayland socket path, we try to infer
+ * the socket via a process similar to the one used by libwayland.
+ * libwayland does the following:
+ *
+ * 1) If $WAYLAND_DISPLAY is set, attempt to connect to
+ * $XDG_RUNTIME_DIR/$WAYLAND_DISPLAY
+ * 2) Otherwise, attempt to connect to $XDG_RUNTIME_DIR/wayland-0
+ * 3) Otherwise, don't pass a wayland socket to rutabaga. If a guest
+ * wayland proxy is launched, it will fail to work.
+ */
+ channel.channel_type = RUTABAGA_CHANNEL_TYPE_WAYLAND;
+ g_autofree gchar *path = NULL;
+ if (!vr->wayland_socket_path) {
+ const gchar *runtime_dir = g_get_user_runtime_dir();
+ const gchar *display = g_getenv("WAYLAND_DISPLAY");
+ if (!display) {
+ display = "wayland-0";
+ }
+
+ if (runtime_dir) {
+ path = g_build_filename(runtime_dir, display, NULL);
+ channel.channel_name = path;
+ }
+ } else {
+ channel.channel_name = vr->wayland_socket_path;
+ }
+
+ if ((builder.capset_mask & (1 << RUTABAGA_CAPSET_CROSS_DOMAIN))) {
+ if (channel.channel_name) {
+ channels.channels = &channel;
+ channels.num_channels = 1;
+ builder.channels = &channels;
+ }
+ }
+
+ result = rutabaga_init(&builder, &vr->rutabaga);
+ if (result) {
+ error_setg_errno(errp, -result, "Failed to init rutabaga");
+ return false;
+ }
+
+ return true;
+}
+
+static int virtio_gpu_rutabaga_get_num_capsets(VirtIOGPU *g)
+{
+ int result;
+ uint32_t num_capsets;
+ VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
+
+ result = rutabaga_get_num_capsets(vr->rutabaga, &num_capsets);
+ if (result) {
+ error_report("Failed to get capsets");
+ return 0;
+ }
+ vr->num_capsets = num_capsets;
+ return num_capsets;
+}
+
+static void virtio_gpu_rutabaga_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
+{
+ VirtIOGPU *g = VIRTIO_GPU(vdev);
+ struct virtio_gpu_ctrl_command *cmd;
+
+ if (!virtio_queue_ready(vq)) {
+ return;
+ }
+
+ cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command));
+ while (cmd) {
+ cmd->vq = vq;
+ cmd->error = 0;
+ cmd->finished = false;
+ QTAILQ_INSERT_TAIL(&g->cmdq, cmd, next);
+ cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command));
+ }
+
+ virtio_gpu_process_cmdq(g);
+}
+
+static void virtio_gpu_rutabaga_realize(DeviceState *qdev, Error **errp)
+{
+ int num_capsets;
+ VirtIOGPUBase *bdev = VIRTIO_GPU_BASE(qdev);
+ VirtIOGPU *gpudev = VIRTIO_GPU(qdev);
+
+#if HOST_BIG_ENDIAN
+ error_setg(errp, "rutabaga is not supported on bigendian platforms");
+ return;
+#endif
+
+ if (!virtio_gpu_rutabaga_init(gpudev, errp)) {
+ return;
+ }
+
+ num_capsets = virtio_gpu_rutabaga_get_num_capsets(gpudev);
+ if (!num_capsets) {
+ return;
+ }
+
+ bdev->conf.flags |= (1 << VIRTIO_GPU_FLAG_RUTABAGA_ENABLED);
+ bdev->conf.flags |= (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED);
+ bdev->conf.flags |= (1 << VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED);
+
+ bdev->virtio_config.num_capsets = num_capsets;
+ virtio_gpu_device_realize(qdev, errp);
+}
+
+static Property virtio_gpu_rutabaga_properties[] = {
+ DEFINE_PROP_BIT64("gfxstream-vulkan", VirtIOGPURutabaga, capset_mask,
+ RUTABAGA_CAPSET_GFXSTREAM_VULKAN, false),
+ DEFINE_PROP_BIT64("cross-domain", VirtIOGPURutabaga, capset_mask,
+ RUTABAGA_CAPSET_CROSS_DOMAIN, false),
+ DEFINE_PROP_BIT64("x-gfxstream-gles", VirtIOGPURutabaga, capset_mask,
+ RUTABAGA_CAPSET_GFXSTREAM_GLES, false),
+ DEFINE_PROP_BIT64("x-gfxstream-composer", VirtIOGPURutabaga, capset_mask,
+ RUTABAGA_CAPSET_GFXSTREAM_COMPOSER, false),
+ DEFINE_PROP_STRING("wayland-socket-path", VirtIOGPURutabaga,
+ wayland_socket_path),
+ DEFINE_PROP_STRING("wsi", VirtIOGPURutabaga, wsi),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_gpu_rutabaga_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+ VirtIOGPUBaseClass *vbc = VIRTIO_GPU_BASE_CLASS(klass);
+ VirtIOGPUClass *vgc = VIRTIO_GPU_CLASS(klass);
+
+ vbc->gl_flushed = virtio_gpu_rutabaga_gl_flushed;
+ vgc->handle_ctrl = virtio_gpu_rutabaga_handle_ctrl;
+ vgc->process_cmd = virtio_gpu_rutabaga_process_cmd;
+ vgc->update_cursor_data = virtio_gpu_rutabaga_update_cursor;
+
+ vdc->realize = virtio_gpu_rutabaga_realize;
+ device_class_set_props(dc, virtio_gpu_rutabaga_properties);
+}
+
+static const TypeInfo virtio_gpu_rutabaga_info[] = {
+ {
+ .name = TYPE_VIRTIO_GPU_RUTABAGA,
+ .parent = TYPE_VIRTIO_GPU,
+ .instance_size = sizeof(VirtIOGPURutabaga),
+ .class_init = virtio_gpu_rutabaga_class_init,
+ },
+};
+
+DEFINE_TYPES(virtio_gpu_rutabaga_info)
+
+module_obj(TYPE_VIRTIO_GPU_RUTABAGA);
+module_kconfig(VIRTIO_GPU);
+module_dep("hw-display-virtio-gpu");
diff --git a/hw/display/virtio-vga-rutabaga.c b/hw/display/virtio-vga-rutabaga.c
new file mode 100644
index 0000000000..a7bef6da24
--- /dev/null
+++ b/hw/display/virtio-vga-rutabaga.c
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "qemu/osdep.h"
+#include "hw/pci/pci.h"
+#include "hw/qdev-properties.h"
+#include "hw/virtio/virtio-gpu.h"
+#include "hw/display/vga.h"
+#include "qapi/error.h"
+#include "qemu/module.h"
+#include "virtio-vga.h"
+#include "qom/object.h"
+
+#define TYPE_VIRTIO_VGA_RUTABAGA "virtio-vga-rutabaga"
+
+OBJECT_DECLARE_SIMPLE_TYPE(VirtIOVGARutabaga, VIRTIO_VGA_RUTABAGA)
+
+struct VirtIOVGARutabaga {
+ VirtIOVGABase parent_obj;
+
+ VirtIOGPURutabaga vdev;
+};
+
+static void virtio_vga_rutabaga_inst_initfn(Object *obj)
+{
+ VirtIOVGARutabaga *dev = VIRTIO_VGA_RUTABAGA(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VIRTIO_GPU_RUTABAGA);
+ VIRTIO_VGA_BASE(dev)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
+}
+
+static VirtioPCIDeviceTypeInfo virtio_vga_rutabaga_info = {
+ .generic_name = TYPE_VIRTIO_VGA_RUTABAGA,
+ .parent = TYPE_VIRTIO_VGA_BASE,
+ .instance_size = sizeof(VirtIOVGARutabaga),
+ .instance_init = virtio_vga_rutabaga_inst_initfn,
+};
+module_obj(TYPE_VIRTIO_VGA_RUTABAGA);
+module_kconfig(VIRTIO_VGA);
+
+static void virtio_vga_register_types(void)
+{
+ if (have_vga) {
+ virtio_pci_types_register(&virtio_vga_rutabaga_info);
+ }
+}
+
+type_init(virtio_vga_register_types)
+
+module_dep("hw-display-virtio-vga");
--
2.42.0.609.gbb76f46606-goog
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v17 7/9] gfxstream + rutabaga: meson support
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
` (5 preceding siblings ...)
2023-10-06 1:08 ` [PATCH v17 6/9] gfxstream + rutabaga: add initial support for gfxstream Gurchetan Singh
@ 2023-10-06 1:08 ` Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 8/9] gfxstream + rutabaga: enable rutabaga Gurchetan Singh
` (2 subsequent siblings)
9 siblings, 0 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-06 1:08 UTC (permalink / raw)
To: qemu-devel
Cc: marcandre.lureau, akihiko.odaki, ray.huang, alex.bennee, shentey,
hi, ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
- Add meson detection of rutabaga_gfx
- Build virtio-gpu-rutabaga.c + associated vga/pci files when
present
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Alyssa Ross <hi@alyssa.is>
Tested-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
hw/display/meson.build | 22 ++++++++++++++++++++++
meson.build | 7 +++++++
meson_options.txt | 2 ++
scripts/meson-buildoptions.sh | 3 +++
4 files changed, 34 insertions(+)
diff --git a/hw/display/meson.build b/hw/display/meson.build
index 05619c6968..2b64fd9f9d 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -80,6 +80,13 @@ if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
if_true: [files('virtio-gpu-gl.c', 'virtio-gpu-virgl.c'), pixman, virgl])
hw_display_modules += {'virtio-gpu-gl': virtio_gpu_gl_ss}
endif
+
+ if rutabaga.found()
+ virtio_gpu_rutabaga_ss = ss.source_set()
+ virtio_gpu_rutabaga_ss.add(when: ['CONFIG_VIRTIO_GPU', rutabaga],
+ if_true: [files('virtio-gpu-rutabaga.c'), pixman])
+ hw_display_modules += {'virtio-gpu-rutabaga': virtio_gpu_rutabaga_ss}
+ endif
endif
if config_all_devices.has_key('CONFIG_VIRTIO_PCI')
@@ -96,6 +103,12 @@ if config_all_devices.has_key('CONFIG_VIRTIO_PCI')
if_true: [files('virtio-gpu-pci-gl.c'), pixman])
hw_display_modules += {'virtio-gpu-pci-gl': virtio_gpu_pci_gl_ss}
endif
+ if rutabaga.found()
+ virtio_gpu_pci_rutabaga_ss = ss.source_set()
+ virtio_gpu_pci_rutabaga_ss.add(when: ['CONFIG_VIRTIO_GPU', 'CONFIG_VIRTIO_PCI', rutabaga],
+ if_true: [files('virtio-gpu-pci-rutabaga.c'), pixman])
+ hw_display_modules += {'virtio-gpu-pci-rutabaga': virtio_gpu_pci_rutabaga_ss}
+ endif
endif
if config_all_devices.has_key('CONFIG_VIRTIO_VGA')
@@ -114,6 +127,15 @@ if config_all_devices.has_key('CONFIG_VIRTIO_VGA')
virtio_vga_gl_ss.add(when: 'CONFIG_ACPI', if_true: files('acpi-vga.c'),
if_false: files('acpi-vga-stub.c'))
hw_display_modules += {'virtio-vga-gl': virtio_vga_gl_ss}
+
+ if rutabaga.found()
+ virtio_vga_rutabaga_ss = ss.source_set()
+ virtio_vga_rutabaga_ss.add(when: ['CONFIG_VIRTIO_VGA', rutabaga],
+ if_true: [files('virtio-vga-rutabaga.c'), pixman])
+ virtio_vga_rutabaga_ss.add(when: 'CONFIG_ACPI', if_true: files('acpi-vga.c'),
+ if_false: files('acpi-vga-stub.c'))
+ hw_display_modules += {'virtio-vga-rutabaga': virtio_vga_rutabaga_ss}
+ endif
endif
system_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_lcdc.c'))
diff --git a/meson.build b/meson.build
index 3bb64b536c..65848a662a 100644
--- a/meson.build
+++ b/meson.build
@@ -1046,6 +1046,12 @@ if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
dependencies: virgl))
endif
endif
+rutabaga = not_found
+if not get_option('rutabaga_gfx').auto() or have_system or have_vhost_user_gpu
+ rutabaga = dependency('rutabaga_gfx_ffi',
+ method: 'pkg-config',
+ required: get_option('rutabaga_gfx'))
+endif
blkio = not_found
if not get_option('blkio').auto() or have_block
blkio = dependency('blkio',
@@ -4277,6 +4283,7 @@ summary_info += {'libtasn1': tasn1}
summary_info += {'PAM': pam}
summary_info += {'iconv support': iconv}
summary_info += {'virgl support': virgl}
+summary_info += {'rutabaga support': rutabaga}
summary_info += {'blkio support': blkio}
summary_info += {'curl support': curl}
summary_info += {'Multipath support': mpathpersist}
diff --git a/meson_options.txt b/meson_options.txt
index 6a17b90968..e49309dd78 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -230,6 +230,8 @@ option('vmnet', type : 'feature', value : 'auto',
description: 'vmnet.framework network backend support')
option('virglrenderer', type : 'feature', value : 'auto',
description: 'virgl rendering support')
+option('rutabaga_gfx', type : 'feature', value : 'auto',
+ description: 'rutabaga_gfx support')
option('png', type : 'feature', value : 'auto',
description: 'PNG support with libpng')
option('vnc', type : 'feature', value : 'auto',
diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh
index 2a74b0275b..a28ccbcaf6 100644
--- a/scripts/meson-buildoptions.sh
+++ b/scripts/meson-buildoptions.sh
@@ -156,6 +156,7 @@ meson_options_help() {
printf "%s\n" ' rbd Ceph block device driver'
printf "%s\n" ' rdma Enable RDMA-based migration'
printf "%s\n" ' replication replication support'
+ printf "%s\n" ' rutabaga-gfx rutabaga_gfx support'
printf "%s\n" ' sdl SDL user interface'
printf "%s\n" ' sdl-image SDL Image support for icons'
printf "%s\n" ' seccomp seccomp support'
@@ -425,6 +426,8 @@ _meson_option_parse() {
--disable-replication) printf "%s" -Dreplication=disabled ;;
--enable-rng-none) printf "%s" -Drng_none=true ;;
--disable-rng-none) printf "%s" -Drng_none=false ;;
+ --enable-rutabaga-gfx) printf "%s" -Drutabaga_gfx=enabled ;;
+ --disable-rutabaga-gfx) printf "%s" -Drutabaga_gfx=disabled ;;
--enable-safe-stack) printf "%s" -Dsafe_stack=true ;;
--disable-safe-stack) printf "%s" -Dsafe_stack=false ;;
--enable-sanitizers) printf "%s" -Dsanitizers=true ;;
--
2.42.0.609.gbb76f46606-goog
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v17 8/9] gfxstream + rutabaga: enable rutabaga
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
` (6 preceding siblings ...)
2023-10-06 1:08 ` [PATCH v17 7/9] gfxstream + rutabaga: meson support Gurchetan Singh
@ 2023-10-06 1:08 ` Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 9/9] docs/system: add basic virtio-gpu documentation Gurchetan Singh
2023-10-09 7:15 ` [PATCH v17 0/9] gfxstream + rutabaga_gfx Marc-André Lureau
9 siblings, 0 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-06 1:08 UTC (permalink / raw)
To: qemu-devel
Cc: marcandre.lureau, akihiko.odaki, ray.huang, alex.bennee, shentey,
hi, ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
This change enables rutabaga to receive virtio-gpu-3d hypercalls
when it is active.
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Alyssa Ross <hi@alyssa.is>
Tested-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
hw/display/virtio-gpu-base.c | 3 ++-
hw/display/virtio-gpu.c | 5 +++--
softmmu/qdev-monitor.c | 3 +++
softmmu/vl.c | 1 +
4 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/hw/display/virtio-gpu-base.c b/hw/display/virtio-gpu-base.c
index 4f2b0ba1f3..50c5373b65 100644
--- a/hw/display/virtio-gpu-base.c
+++ b/hw/display/virtio-gpu-base.c
@@ -223,7 +223,8 @@ virtio_gpu_base_get_features(VirtIODevice *vdev, uint64_t features,
{
VirtIOGPUBase *g = VIRTIO_GPU_BASE(vdev);
- if (virtio_gpu_virgl_enabled(g->conf)) {
+ if (virtio_gpu_virgl_enabled(g->conf) ||
+ virtio_gpu_rutabaga_enabled(g->conf)) {
features |= (1 << VIRTIO_GPU_F_VIRGL);
}
if (virtio_gpu_edid_enabled(g->conf)) {
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index be16efbd38..6efd15b6ae 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -1363,8 +1363,9 @@ void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
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");
+ if (!virtio_gpu_rutabaga_enabled(g->parent_obj.conf) &&
+ !virtio_gpu_have_udmabuf()) {
+ error_setg(errp, "need rutabaga or udmabuf for blob resources");
return;
}
diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c
index 74f4e41338..1b8005ae55 100644
--- a/softmmu/qdev-monitor.c
+++ b/softmmu/qdev-monitor.c
@@ -86,6 +86,9 @@ static const QDevAlias qdev_alias_table[] = {
{ "virtio-gpu-pci", "virtio-gpu", QEMU_ARCH_VIRTIO_PCI },
{ "virtio-gpu-gl-device", "virtio-gpu-gl", QEMU_ARCH_VIRTIO_MMIO },
{ "virtio-gpu-gl-pci", "virtio-gpu-gl", QEMU_ARCH_VIRTIO_PCI },
+ { "virtio-gpu-rutabaga-device", "virtio-gpu-rutabaga",
+ QEMU_ARCH_VIRTIO_MMIO },
+ { "virtio-gpu-rutabaga-pci", "virtio-gpu-rutabaga", QEMU_ARCH_VIRTIO_PCI },
{ "virtio-input-host-device", "virtio-input-host", QEMU_ARCH_VIRTIO_MMIO },
{ "virtio-input-host-ccw", "virtio-input-host", QEMU_ARCH_VIRTIO_CCW },
{ "virtio-input-host-pci", "virtio-input-host", QEMU_ARCH_VIRTIO_PCI },
diff --git a/softmmu/vl.c b/softmmu/vl.c
index 98e071e63b..dd82c6eb13 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -215,6 +215,7 @@ static struct {
{ .driver = "ati-vga", .flag = &default_vga },
{ .driver = "vhost-user-vga", .flag = &default_vga },
{ .driver = "virtio-vga-gl", .flag = &default_vga },
+ { .driver = "virtio-vga-rutabaga", .flag = &default_vga },
};
static QemuOptsList qemu_rtc_opts = {
--
2.42.0.609.gbb76f46606-goog
^ permalink raw reply related [flat|nested] 17+ messages in thread
* [PATCH v17 9/9] docs/system: add basic virtio-gpu documentation
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
` (7 preceding siblings ...)
2023-10-06 1:08 ` [PATCH v17 8/9] gfxstream + rutabaga: enable rutabaga Gurchetan Singh
@ 2023-10-06 1:08 ` Gurchetan Singh
2023-10-09 7:15 ` [PATCH v17 0/9] gfxstream + rutabaga_gfx Marc-André Lureau
9 siblings, 0 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-06 1:08 UTC (permalink / raw)
To: qemu-devel
Cc: marcandre.lureau, akihiko.odaki, ray.huang, alex.bennee, shentey,
hi, ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
This adds basic documentation for virtio-gpu.
Suggested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Alyssa Ross <hi@alyssa.is>
Tested-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
docs/system/device-emulation.rst | 1 +
docs/system/devices/virtio-gpu.rst | 112 +++++++++++++++++++++++++++++
2 files changed, 113 insertions(+)
create mode 100644 docs/system/devices/virtio-gpu.rst
diff --git a/docs/system/device-emulation.rst b/docs/system/device-emulation.rst
index 4491c4cbf7..1167f3a9f2 100644
--- a/docs/system/device-emulation.rst
+++ b/docs/system/device-emulation.rst
@@ -91,6 +91,7 @@ Emulated Devices
devices/nvme.rst
devices/usb.rst
devices/vhost-user.rst
+ devices/virtio-gpu.rst
devices/virtio-pmem.rst
devices/vhost-user-rng.rst
devices/canokey.rst
diff --git a/docs/system/devices/virtio-gpu.rst b/docs/system/devices/virtio-gpu.rst
new file mode 100644
index 0000000000..cb73dd7998
--- /dev/null
+++ b/docs/system/devices/virtio-gpu.rst
@@ -0,0 +1,112 @@
+..
+ SPDX-License-Identifier: GPL-2.0-or-later
+
+virtio-gpu
+==========
+
+This document explains the setup and usage of the virtio-gpu device.
+The virtio-gpu device paravirtualizes the GPU and display controller.
+
+Linux kernel support
+--------------------
+
+virtio-gpu requires a guest Linux kernel built with the
+``CONFIG_DRM_VIRTIO_GPU`` option.
+
+QEMU virtio-gpu variants
+------------------------
+
+QEMU virtio-gpu device variants come in the following form:
+
+ * ``virtio-vga[-BACKEND]``
+ * ``virtio-gpu[-BACKEND][-INTERFACE]``
+ * ``vhost-user-vga``
+ * ``vhost-user-pci``
+
+**Backends:** QEMU provides a 2D virtio-gpu backend, and two accelerated
+backends: virglrenderer ('gl' device label) and rutabaga_gfx ('rutabaga'
+device label). There is a vhost-user backend that runs the graphics stack
+in a separate process for improved isolation.
+
+**Interfaces:** QEMU further categorizes virtio-gpu device variants based
+on the interface exposed to the guest. The interfaces can be classified
+into VGA and non-VGA variants. The VGA ones are prefixed with virtio-vga
+or vhost-user-vga while the non-VGA ones are prefixed with virtio-gpu or
+vhost-user-gpu.
+
+The VGA ones always use the PCI interface, but for the non-VGA ones, the
+user can further pick between MMIO or PCI. For MMIO, the user can suffix
+the device name with -device, though vhost-user-gpu does not support MMIO.
+For PCI, the user can suffix it with -pci. Without these suffixes, the
+platform default will be chosen.
+
+virtio-gpu 2d
+-------------
+
+The default 2D backend only performs 2D operations. The guest needs to
+employ a software renderer for 3D graphics.
+
+Typically, the software renderer is provided by `Mesa`_ or `SwiftShader`_.
+Mesa's implementations (LLVMpipe, Lavapipe and virgl below) work out of box
+on typical modern Linux distributions.
+
+.. parsed-literal::
+ -device virtio-gpu
+
+.. _Mesa: https://www.mesa3d.org/
+.. _SwiftShader: https://github.com/google/swiftshader
+
+virtio-gpu virglrenderer
+------------------------
+
+When using virgl accelerated graphics mode in the guest, OpenGL API calls
+are translated into an intermediate representation (see `Gallium3D`_). The
+intermediate representation is communicated to the host and the
+`virglrenderer`_ library on the host translates the intermediate
+representation back to OpenGL API calls.
+
+.. parsed-literal::
+ -device virtio-gpu-gl
+
+.. _Gallium3D: https://www.freedesktop.org/wiki/Software/gallium/
+.. _virglrenderer: https://gitlab.freedesktop.org/virgl/virglrenderer/
+
+virtio-gpu rutabaga
+-------------------
+
+virtio-gpu can also leverage rutabaga_gfx to provide `gfxstream`_
+rendering and `Wayland display passthrough`_. With the gfxstream rendering
+mode, GLES and Vulkan calls are forwarded to the host with minimal
+modification.
+
+The crosvm book provides directions on how to build a `gfxstream-enabled
+rutabaga`_ and launch a `guest Wayland proxy`_.
+
+This device does require host blob support (``hostmem`` field below). The
+``hostmem`` field specifies the size of virtio-gpu host memory window.
+This is typically between 256M and 8G.
+
+At least one virtio-gpu capability set ("capset") must be specified when
+starting the device. The currently capsets supported are ``gfxstream-vulkan``
+and ``cross-domain`` for Linux guests. For Android guests, the experimental
+``x-gfxstream-gles`` and ``x-gfxstream-composer`` capsets are also supported.
+
+The device will try to auto-detect the wayland socket path if the
+``cross-domain`` capset name is set. The user may optionally specify
+``wayland-socket-path`` for non-standard paths.
+
+The ``wsi`` option can be set to ``surfaceless`` or ``headless``.
+Surfaceless doesn't create a native window surface, but does copy from the
+render target to the Pixman buffer if a virtio-gpu 2D hypercall is issued.
+Headless is like surfaceless, but doesn't copy to the Pixman buffer.
+Surfaceless is the default if ``wsi`` is not specified.
+
+.. parsed-literal::
+ -device virtio-gpu-rutabaga,gfxstream-vulkan=on,cross-domain=on,
+ hostmem=8G,wayland-socket-path=/tmp/nonstandard/mock_wayland.sock,
+ wsi=headless
+
+.. _gfxstream: https://android.googlesource.com/platform/hardware/google/gfxstream/
+.. _Wayland display passthrough: https://www.youtube.com/watch?v=OZJiHMtIQ2M
+.. _gfxstream-enabled rutabaga: https://crosvm.dev/book/appendix/rutabaga_gfx.html
+.. _guest Wayland proxy: https://crosvm.dev/book/devices/wayland.html
--
2.42.0.609.gbb76f46606-goog
^ permalink raw reply related [flat|nested] 17+ messages in thread
* Re: [PATCH v17 6/9] gfxstream + rutabaga: add initial support for gfxstream
2023-10-06 1:08 ` [PATCH v17 6/9] gfxstream + rutabaga: add initial support for gfxstream Gurchetan Singh
@ 2023-10-09 7:11 ` Marc-André Lureau
2023-10-10 0:06 ` Gurchetan Singh
2023-10-31 1:25 ` [PATCH] virtio-gpu-rutabaga: Add empty interface to fix arm64 crash Cong Liu
1 sibling, 1 reply; 17+ messages in thread
From: Marc-André Lureau @ 2023-10-09 7:11 UTC (permalink / raw)
To: Gurchetan Singh
Cc: qemu-devel, akihiko.odaki, ray.huang, alex.bennee, shentey, hi,
ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
On Fri, Oct 6, 2023 at 5:09 AM Gurchetan Singh
<gurchetansingh@chromium.org> wrote:
>
> This adds initial support for gfxstream and cross-domain. Both
> features rely on virtio-gpu blob resources and context types, which
> are also implemented in this patch.
>
> gfxstream has a long and illustrious history in Android graphics
> paravirtualization. It has been powering graphics in the Android
> Studio Emulator for more than a decade, which is the main developer
> platform.
>
> Originally conceived by Jesse Hall, it was first known as "EmuGL" [a].
> The key design characteristic was a 1:1 threading model and
> auto-generation, which fit nicely with the OpenGLES spec. It also
> allowed easy layering with ANGLE on the host, which provides the GLES
> implementations on Windows or MacOS enviroments.
>
> gfxstream has traditionally been maintained by a single engineer, and
> between 2015 to 2021, the goldfish throne passed to Frank Yang.
> Historians often remark this glorious reign ("pax gfxstreama" is the
> academic term) was comparable to that of Augustus and both Queen
> Elizabeths. Just to name a few accomplishments in a resplendent
> panoply: higher versions of GLES, address space graphics, snapshot
> support and CTS compliant Vulkan [b].
>
> One major drawback was the use of out-of-tree goldfish drivers.
> Android engineers didn't know much about DRM/KMS and especially TTM so
> a simple guest to host pipe was conceived.
>
> Luckily, virtio-gpu 3D started to emerge in 2016 due to the work of
> the Mesa/virglrenderer communities. In 2018, the initial virtio-gpu
> port of gfxstream was done by Cuttlefish enthusiast Alistair Delva.
> It was a symbol compatible replacement of virglrenderer [c] and named
> "AVDVirglrenderer". This implementation forms the basis of the
> current gfxstream host implementation still in use today.
>
> cross-domain support follows a similar arc. Originally conceived by
> Wayland aficionado David Reveman and crosvm enjoyer Zach Reizner in
> 2018, it initially relied on the downstream "virtio-wl" device.
>
> In 2020 and 2021, virtio-gpu was extended to include blob resources
> and multiple timelines by yours truly, features gfxstream/cross-domain
> both require to function correctly.
>
> Right now, we stand at the precipice of a truly fantastic possibility:
> the Android Emulator powered by upstream QEMU and upstream Linux
> kernel. gfxstream will then be packaged properfully, and app
> developers can even fix gfxstream bugs on their own if they encounter
> them.
>
> It's been quite the ride, my friends. Where will gfxstream head next,
> nobody really knows. I wouldn't be surprised if it's around for
> another decade, maintained by a new generation of Android graphics
> enthusiasts.
>
> Technical details:
> - Very simple initial display integration: just used Pixman
> - Largely, 1:1 mapping of virtio-gpu hypercalls to rutabaga function
> calls
>
> Next steps for Android VMs:
> - The next step would be improving display integration and UI interfaces
> with the goal of the QEMU upstream graphics being in an emulator
> release [d].
>
> Next steps for Linux VMs for display virtualization:
> - For widespread distribution, someone needs to package Sommelier or the
> wayland-proxy-virtwl [e] ideally into Debian main. In addition, newer
> versions of the Linux kernel come with DRM_VIRTIO_GPU_KMS option,
> which allows disabling KMS hypercalls. If anyone cares enough, it'll
> probably be possible to build a custom VM variant that uses this display
> virtualization strategy.
>
> [a] https://android-review.googlesource.com/c/platform/development/+/34470
> [b] https://android-review.googlesource.com/q/topic:%22vulkan-hostconnection-start%22
> [c] https://android-review.googlesource.com/c/device/generic/goldfish-opengl/+/761927
> [d] https://developer.android.com/studio/releases/emulator
> [e] https://github.com/talex5/wayland-proxy-virtwl
>
> Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
> Tested-by: Alyssa Ross <hi@alyssa.is>
> Tested-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
> Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
> Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
> Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
> ---
> hw/display/virtio-gpu-pci-rutabaga.c | 47 ++
> hw/display/virtio-gpu-rutabaga.c | 1113 ++++++++++++++++++++++++++
> hw/display/virtio-vga-rutabaga.c | 50 ++
> 3 files changed, 1210 insertions(+)
> create mode 100644 hw/display/virtio-gpu-pci-rutabaga.c
> create mode 100644 hw/display/virtio-gpu-rutabaga.c
> create mode 100644 hw/display/virtio-vga-rutabaga.c
>
> diff --git a/hw/display/virtio-gpu-pci-rutabaga.c b/hw/display/virtio-gpu-pci-rutabaga.c
> new file mode 100644
> index 0000000000..c96729e198
> --- /dev/null
> +++ b/hw/display/virtio-gpu-pci-rutabaga.c
> @@ -0,0 +1,47 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
> +
> +#include "qemu/osdep.h"
> +#include "qapi/error.h"
> +#include "qemu/module.h"
> +#include "hw/pci/pci.h"
> +#include "hw/qdev-properties.h"
> +#include "hw/virtio/virtio.h"
> +#include "hw/virtio/virtio-bus.h"
> +#include "hw/virtio/virtio-gpu-pci.h"
> +#include "qom/object.h"
> +
> +#define TYPE_VIRTIO_GPU_RUTABAGA_PCI "virtio-gpu-rutabaga-pci"
> +OBJECT_DECLARE_SIMPLE_TYPE(VirtIOGPURutabagaPCI, VIRTIO_GPU_RUTABAGA_PCI)
> +
> +struct VirtIOGPURutabagaPCI {
> + VirtIOGPUPCIBase parent_obj;
> +
> + VirtIOGPURutabaga vdev;
> +};
> +
> +static void virtio_gpu_rutabaga_initfn(Object *obj)
> +{
> + VirtIOGPURutabagaPCI *dev = VIRTIO_GPU_RUTABAGA_PCI(obj);
> +
> + virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
> + TYPE_VIRTIO_GPU_RUTABAGA);
> + VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
> +}
> +
> +static const TypeInfo virtio_gpu_rutabaga_pci_info[] = {
> + {
> + .name = TYPE_VIRTIO_GPU_RUTABAGA_PCI,
> + .parent = TYPE_VIRTIO_GPU_PCI_BASE,
> + .instance_size = sizeof(VirtIOGPURutabagaPCI),
> + .instance_init = virtio_gpu_rutabaga_initfn,
> + .interfaces = (InterfaceInfo[]) {
> + { INTERFACE_CONVENTIONAL_PCI_DEVICE },
> + }
> + },
> +};
> +
> +DEFINE_TYPES(virtio_gpu_rutabaga_pci_info)
> +
> +module_obj(TYPE_VIRTIO_GPU_RUTABAGA_PCI);
> +module_kconfig(VIRTIO_PCI);
> +module_dep("hw-display-virtio-gpu-pci");
> diff --git a/hw/display/virtio-gpu-rutabaga.c b/hw/display/virtio-gpu-rutabaga.c
> new file mode 100644
> index 0000000000..e6f799a14c
> --- /dev/null
> +++ b/hw/display/virtio-gpu-rutabaga.c
> @@ -0,0 +1,1113 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
> +
> +#include "qemu/osdep.h"
> +#include "qapi/error.h"
> +#include "qemu/error-report.h"
> +#include "qemu/iov.h"
> +#include "trace.h"
> +#include "hw/virtio/virtio.h"
> +#include "hw/virtio/virtio-gpu.h"
> +#include "hw/virtio/virtio-gpu-pixman.h"
> +#include "hw/virtio/virtio-iommu.h"
> +
> +#include <glib/gmem.h>
> +#include <rutabaga_gfx/rutabaga_gfx_ffi.h>
> +
> +#define CHECK(condition, cmd) \
> + do { \
> + if (!(condition)) { \
> + error_report("CHECK failed in %s() %s:" "%d", __func__, \
> + __FILE__, __LINE__); \
> + (cmd)->error = VIRTIO_GPU_RESP_ERR_UNSPEC; \
> + return; \
> + } \
> + } while (0)
> +
> +struct rutabaga_aio_data {
> + struct VirtIOGPURutabaga *vr;
> + struct rutabaga_fence fence;
> +};
> +
> +static void
> +virtio_gpu_rutabaga_update_cursor(VirtIOGPU *g, struct virtio_gpu_scanout *s,
> + uint32_t resource_id)
> +{
> + struct virtio_gpu_simple_resource *res;
> + struct rutabaga_transfer transfer = { 0 };
> + struct iovec transfer_iovec;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + res = virtio_gpu_find_resource(g, resource_id);
> + if (!res) {
> + return;
> + }
> +
> + if (res->width != s->current_cursor->width ||
> + res->height != s->current_cursor->height) {
> + return;
> + }
> +
> + transfer.x = 0;
> + transfer.y = 0;
> + transfer.z = 0;
> + transfer.w = res->width;
> + transfer.h = res->height;
> + transfer.d = 1;
> +
> + transfer_iovec.iov_base = s->current_cursor->data;
> + transfer_iovec.iov_len = res->width * res->height * 4;
> +
> + rutabaga_resource_transfer_read(vr->rutabaga, 0,
> + resource_id, &transfer,
> + &transfer_iovec);
> +}
> +
> +static void
> +virtio_gpu_rutabaga_gl_flushed(VirtIOGPUBase *b)
> +{
> + VirtIOGPU *g = VIRTIO_GPU(b);
> + virtio_gpu_process_cmdq(g);
> +}
> +
> +static void
> +rutabaga_cmd_create_resource_2d(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct rutabaga_create_3d rc_3d = { 0 };
> + struct virtio_gpu_simple_resource *res;
> + struct virtio_gpu_resource_create_2d c2d;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(c2d);
> + trace_virtio_gpu_cmd_res_create_2d(c2d.resource_id, c2d.format,
> + c2d.width, c2d.height);
> +
> + rc_3d.target = 2;
> + rc_3d.format = c2d.format;
> + rc_3d.bind = (1 << 1);
> + rc_3d.width = c2d.width;
> + rc_3d.height = c2d.height;
> + rc_3d.depth = 1;
> + rc_3d.array_size = 1;
> + rc_3d.last_level = 0;
> + rc_3d.nr_samples = 0;
> + rc_3d.flags = VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP;
> +
> + result = rutabaga_resource_create_3d(vr->rutabaga, c2d.resource_id, &rc_3d);
> + CHECK(!result, cmd);
> +
> + res = g_new0(struct virtio_gpu_simple_resource, 1);
> + res->width = c2d.width;
> + res->height = c2d.height;
> + res->format = c2d.format;
> + res->resource_id = c2d.resource_id;
> +
> + QTAILQ_INSERT_HEAD(&g->reslist, res, next);
> +}
> +
> +static void
> +rutabaga_cmd_create_resource_3d(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct rutabaga_create_3d rc_3d = { 0 };
> + struct virtio_gpu_simple_resource *res;
> + struct virtio_gpu_resource_create_3d c3d;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(c3d);
> +
> + trace_virtio_gpu_cmd_res_create_3d(c3d.resource_id, c3d.format,
> + c3d.width, c3d.height, c3d.depth);
> +
> + rc_3d.target = c3d.target;
> + rc_3d.format = c3d.format;
> + rc_3d.bind = c3d.bind;
> + rc_3d.width = c3d.width;
> + rc_3d.height = c3d.height;
> + rc_3d.depth = c3d.depth;
> + rc_3d.array_size = c3d.array_size;
> + rc_3d.last_level = c3d.last_level;
> + rc_3d.nr_samples = c3d.nr_samples;
> + rc_3d.flags = c3d.flags;
> +
> + result = rutabaga_resource_create_3d(vr->rutabaga, c3d.resource_id, &rc_3d);
> + CHECK(!result, cmd);
> +
> + res = g_new0(struct virtio_gpu_simple_resource, 1);
> + res->width = c3d.width;
> + res->height = c3d.height;
> + res->format = c3d.format;
> + res->resource_id = c3d.resource_id;
> +
> + QTAILQ_INSERT_HEAD(&g->reslist, res, next);
> +}
> +
> +static void
> +rutabaga_cmd_resource_unref(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct virtio_gpu_simple_resource *res;
> + struct virtio_gpu_resource_unref unref;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(unref);
> +
> + trace_virtio_gpu_cmd_res_unref(unref.resource_id);
> +
> + res = virtio_gpu_find_resource(g, unref.resource_id);
> + CHECK(res, cmd);
> +
> + result = rutabaga_resource_unref(vr->rutabaga, unref.resource_id);
> + CHECK(!result, cmd);
> +
> + if (res->image) {
> + pixman_image_unref(res->image);
> + }
> +
> + QTAILQ_REMOVE(&g->reslist, res, next);
> + g_free(res);
> +}
> +
> +static void
> +rutabaga_cmd_context_create(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct virtio_gpu_ctx_create cc;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(cc);
> + trace_virtio_gpu_cmd_ctx_create(cc.hdr.ctx_id,
> + cc.debug_name);
> +
> + result = rutabaga_context_create(vr->rutabaga, cc.hdr.ctx_id,
> + cc.context_init, cc.debug_name, cc.nlen);
> + CHECK(!result, cmd);
> +}
> +
> +static void
> +rutabaga_cmd_context_destroy(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct virtio_gpu_ctx_destroy cd;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(cd);
> + trace_virtio_gpu_cmd_ctx_destroy(cd.hdr.ctx_id);
> +
> + result = rutabaga_context_destroy(vr->rutabaga, cd.hdr.ctx_id);
> + CHECK(!result, cmd);
> +}
> +
> +static void
> +rutabaga_cmd_resource_flush(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result, i;
> + struct virtio_gpu_scanout *scanout = NULL;
> + struct virtio_gpu_simple_resource *res;
> + struct rutabaga_transfer transfer = { 0 };
> + struct iovec transfer_iovec;
> + struct virtio_gpu_resource_flush rf;
> + bool found = false;
> +
> + VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> + if (vr->headless) {
> + return;
> + }
> +
> + VIRTIO_GPU_FILL_CMD(rf);
> + 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);
> + CHECK(res, cmd);
> +
> + for (i = 0; i < vb->conf.max_outputs; i++) {
> + scanout = &vb->scanout[i];
> + if (i == res->scanout_bitmask) {
> + found = true;
> + break;
> + }
> + }
> +
> + if (!found) {
> + return;
> + }
> +
> + transfer.x = 0;
> + transfer.y = 0;
> + transfer.z = 0;
> + transfer.w = res->width;
> + transfer.h = res->height;
> + transfer.d = 1;
> +
> + transfer_iovec.iov_base = pixman_image_get_data(res->image);
> + transfer_iovec.iov_len = res->width * res->height * 4;
> +
> + result = rutabaga_resource_transfer_read(vr->rutabaga, 0,
> + rf.resource_id, &transfer,
> + &transfer_iovec);
> + CHECK(!result, cmd);
> + dpy_gfx_update_full(scanout->con);
> +}
> +
> +static void
> +rutabaga_cmd_set_scanout(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
> +{
> + struct virtio_gpu_simple_resource *res;
> + struct virtio_gpu_scanout *scanout = NULL;
> + struct virtio_gpu_set_scanout ss;
> +
> + VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> + if (vr->headless) {
> + return;
> + }
> +
> + VIRTIO_GPU_FILL_CMD(ss);
> + trace_virtio_gpu_cmd_set_scanout(ss.scanout_id, ss.resource_id,
> + ss.r.width, ss.r.height, ss.r.x, ss.r.y);
> +
> + CHECK(ss.scanout_id < VIRTIO_GPU_MAX_SCANOUTS, cmd);
> + scanout = &vb->scanout[ss.scanout_id];
> +
> + if (ss.resource_id == 0) {
> + dpy_gfx_replace_surface(scanout->con, NULL);
> + dpy_gl_scanout_disable(scanout->con);
> + return;
> + }
> +
> + res = virtio_gpu_find_resource(g, ss.resource_id);
> + CHECK(res, cmd);
> +
> + if (!res->image) {
> + pixman_format_code_t pformat;
> + pformat = virtio_gpu_get_pixman_format(res->format);
> + CHECK(pformat, cmd);
> +
> + res->image = pixman_image_create_bits(pformat,
> + res->width,
> + res->height,
> + NULL, 0);
> + CHECK(res->image, cmd);
> + pixman_image_ref(res->image);
> + }
> +
> + vb->enable = 1;
> +
> + /* realloc the surface ptr */
> + scanout->ds = qemu_create_displaysurface_pixman(res->image);
> + dpy_gfx_replace_surface(scanout->con, NULL);
> + dpy_gfx_replace_surface(scanout->con, scanout->ds);
> + res->scanout_bitmask = ss.scanout_id;
> +}
> +
> +static void
> +rutabaga_cmd_submit_3d(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct virtio_gpu_cmd_submit cs;
> + struct rutabaga_command rutabaga_cmd = { 0 };
> + g_autofree uint8_t *buf = NULL;
> + size_t s;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(cs);
> + trace_virtio_gpu_cmd_ctx_submit(cs.hdr.ctx_id, cs.size);
> +
> + buf = g_new0(uint8_t, cs.size);
> + s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num,
> + sizeof(cs), buf, cs.size);
> + CHECK(s == cs.size, cmd);
> +
> + rutabaga_cmd.ctx_id = cs.hdr.ctx_id;
> + rutabaga_cmd.cmd = buf;
> + rutabaga_cmd.cmd_size = cs.size;
> +
> + result = rutabaga_submit_command(vr->rutabaga, &rutabaga_cmd);
> + CHECK(!result, cmd);
> +}
> +
> +static void
> +rutabaga_cmd_transfer_to_host_2d(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct rutabaga_transfer transfer = { 0 };
> + struct virtio_gpu_transfer_to_host_2d t2d;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(t2d);
> + trace_virtio_gpu_cmd_res_xfer_toh_2d(t2d.resource_id);
> +
> + transfer.x = t2d.r.x;
> + transfer.y = t2d.r.y;
> + transfer.z = 0;
> + transfer.w = t2d.r.width;
> + transfer.h = t2d.r.height;
> + transfer.d = 1;
> +
> + result = rutabaga_resource_transfer_write(vr->rutabaga, 0, t2d.resource_id,
> + &transfer);
> + CHECK(!result, cmd);
> +}
> +
> +static void
> +rutabaga_cmd_transfer_to_host_3d(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct rutabaga_transfer transfer = { 0 };
> + struct virtio_gpu_transfer_host_3d t3d;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(t3d);
> + trace_virtio_gpu_cmd_res_xfer_toh_3d(t3d.resource_id);
> +
> + transfer.x = t3d.box.x;
> + transfer.y = t3d.box.y;
> + transfer.z = t3d.box.z;
> + transfer.w = t3d.box.w;
> + transfer.h = t3d.box.h;
> + transfer.d = t3d.box.d;
> + transfer.level = t3d.level;
> + transfer.stride = t3d.stride;
> + transfer.layer_stride = t3d.layer_stride;
> + transfer.offset = t3d.offset;
> +
> + result = rutabaga_resource_transfer_write(vr->rutabaga, t3d.hdr.ctx_id,
> + t3d.resource_id, &transfer);
> + CHECK(!result, cmd);
> +}
> +
> +static void
> +rutabaga_cmd_transfer_from_host_3d(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct rutabaga_transfer transfer = { 0 };
> + struct virtio_gpu_transfer_host_3d t3d;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(t3d);
> + trace_virtio_gpu_cmd_res_xfer_fromh_3d(t3d.resource_id);
> +
> + transfer.x = t3d.box.x;
> + transfer.y = t3d.box.y;
> + transfer.z = t3d.box.z;
> + transfer.w = t3d.box.w;
> + transfer.h = t3d.box.h;
> + transfer.d = t3d.box.d;
> + transfer.level = t3d.level;
> + transfer.stride = t3d.stride;
> + transfer.layer_stride = t3d.layer_stride;
> + transfer.offset = t3d.offset;
> +
> + result = rutabaga_resource_transfer_read(vr->rutabaga, t3d.hdr.ctx_id,
> + t3d.resource_id, &transfer, NULL);
> + CHECK(!result, cmd);
> +}
> +
> +static void
> +rutabaga_cmd_attach_backing(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
> +{
> + struct rutabaga_iovecs vecs = { 0 };
> + struct virtio_gpu_simple_resource *res;
> + struct virtio_gpu_resource_attach_backing att_rb;
> + int ret;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(att_rb);
> + trace_virtio_gpu_cmd_res_back_attach(att_rb.resource_id);
> +
> + res = virtio_gpu_find_resource(g, att_rb.resource_id);
> + CHECK(res, cmd);
> + CHECK(!res->iov, cmd);
> +
> + ret = virtio_gpu_create_mapping_iov(g, att_rb.nr_entries, sizeof(att_rb),
> + cmd, NULL, &res->iov, &res->iov_cnt);
> + CHECK(!ret, cmd);
> +
> + vecs.iovecs = res->iov;
> + vecs.num_iovecs = res->iov_cnt;
> +
> + ret = rutabaga_resource_attach_backing(vr->rutabaga, att_rb.resource_id,
> + &vecs);
> + if (ret != 0) {
> + virtio_gpu_cleanup_mapping(g, res);
> + }
> +
> + CHECK(!ret, cmd);
> +}
> +
> +static void
> +rutabaga_cmd_detach_backing(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
> +{
> + struct virtio_gpu_simple_resource *res;
> + struct virtio_gpu_resource_detach_backing detach_rb;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(detach_rb);
> + trace_virtio_gpu_cmd_res_back_detach(detach_rb.resource_id);
> +
> + res = virtio_gpu_find_resource(g, detach_rb.resource_id);
> + CHECK(res, cmd);
> +
> + rutabaga_resource_detach_backing(vr->rutabaga,
> + detach_rb.resource_id);
> +
> + virtio_gpu_cleanup_mapping(g, res);
> +}
> +
> +static void
> +rutabaga_cmd_ctx_attach_resource(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct virtio_gpu_ctx_resource att_res;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(att_res);
> + trace_virtio_gpu_cmd_ctx_res_attach(att_res.hdr.ctx_id,
> + att_res.resource_id);
> +
> + result = rutabaga_context_attach_resource(vr->rutabaga, att_res.hdr.ctx_id,
> + att_res.resource_id);
> + CHECK(!result, cmd);
> +}
> +
> +static void
> +rutabaga_cmd_ctx_detach_resource(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct virtio_gpu_ctx_resource det_res;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(det_res);
> + trace_virtio_gpu_cmd_ctx_res_detach(det_res.hdr.ctx_id,
> + det_res.resource_id);
> +
> + result = rutabaga_context_detach_resource(vr->rutabaga, det_res.hdr.ctx_id,
> + det_res.resource_id);
> + CHECK(!result, cmd);
> +}
> +
> +static void
> +rutabaga_cmd_get_capset_info(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct virtio_gpu_get_capset_info info;
> + struct virtio_gpu_resp_capset_info resp;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(info);
> +
> + result = rutabaga_get_capset_info(vr->rutabaga, info.capset_index,
> + &resp.capset_id, &resp.capset_max_version,
> + &resp.capset_max_size);
> + CHECK(!result, cmd);
> +
> + resp.hdr.type = VIRTIO_GPU_RESP_OK_CAPSET_INFO;
> + virtio_gpu_ctrl_response(g, cmd, &resp.hdr, sizeof(resp));
> +}
> +
> +static void
> +rutabaga_cmd_get_capset(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + struct virtio_gpu_get_capset gc;
> + struct virtio_gpu_resp_capset *resp;
> + uint32_t capset_size, capset_version;
> + uint32_t current_id, i;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(gc);
> + for (i = 0; i < vr->num_capsets; i++) {
> + result = rutabaga_get_capset_info(vr->rutabaga, i,
> + ¤t_id, &capset_version,
> + &capset_size);
> + CHECK(!result, cmd);
> +
> + if (current_id == gc.capset_id) {
> + break;
> + }
> + }
> +
> + CHECK(i < vr->num_capsets, cmd);
> +
> + resp = g_malloc0(sizeof(*resp) + capset_size);
> + resp->hdr.type = VIRTIO_GPU_RESP_OK_CAPSET;
> + rutabaga_get_capset(vr->rutabaga, gc.capset_id, gc.capset_version,
> + resp->capset_data, capset_size);
> +
> + virtio_gpu_ctrl_response(g, cmd, &resp->hdr, sizeof(*resp) + capset_size);
> + g_free(resp);
> +}
> +
> +static void
> +rutabaga_cmd_resource_create_blob(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int result;
> + struct rutabaga_iovecs vecs = { 0 };
> + g_autofree struct virtio_gpu_simple_resource *res = NULL;
> + struct virtio_gpu_resource_create_blob cblob;
> + struct rutabaga_create_blob rc_blob = { 0 };
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(cblob);
> + trace_virtio_gpu_cmd_res_create_blob(cblob.resource_id, cblob.size);
> +
> + CHECK(cblob.resource_id != 0, cmd);
> +
> + 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_HOST3D) {
> + result = virtio_gpu_create_mapping_iov(g, cblob.nr_entries,
> + sizeof(cblob), cmd, &res->addrs,
> + &res->iov, &res->iov_cnt);
> + CHECK(!result, cmd);
> + }
> +
> + rc_blob.blob_id = cblob.blob_id;
> + rc_blob.blob_mem = cblob.blob_mem;
> + rc_blob.blob_flags = cblob.blob_flags;
> + rc_blob.size = cblob.size;
> +
> + vecs.iovecs = res->iov;
> + vecs.num_iovecs = res->iov_cnt;
> +
> + result = rutabaga_resource_create_blob(vr->rutabaga, cblob.hdr.ctx_id,
> + cblob.resource_id, &rc_blob, &vecs,
> + NULL);
> +
> + if (result && cblob.blob_mem != VIRTIO_GPU_BLOB_MEM_HOST3D) {
> + virtio_gpu_cleanup_mapping(g, res);
> + }
> +
> + CHECK(!result, cmd);
> +
> + QTAILQ_INSERT_HEAD(&g->reslist, res, next);
> + res = NULL;
> +}
> +
> +static void
> +rutabaga_cmd_resource_map_blob(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + uint32_t map_info = 0;
> + uint32_t slot = 0;
> + struct virtio_gpu_simple_resource *res;
> + struct rutabaga_mapping mapping = { 0 };
> + struct virtio_gpu_resource_map_blob mblob;
> + struct virtio_gpu_resp_map_info resp = { 0 };
> +
> + VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(mblob);
> +
> + CHECK(mblob.resource_id != 0, cmd);
> +
> + res = virtio_gpu_find_resource(g, mblob.resource_id);
> + CHECK(res, cmd);
> +
> + result = rutabaga_resource_map_info(vr->rutabaga, mblob.resource_id,
> + &map_info);
> + CHECK(!result, cmd);
> +
> + /*
> + * RUTABAGA_MAP_ACCESS_* flags are not part of the virtio-gpu spec, but do
> + * exist to potentially allow the hypervisor to restrict write access to
> + * memory. QEMU does not need to use this functionality at the moment.
> + */
> + resp.map_info = map_info & RUTABAGA_MAP_CACHE_MASK;
> +
> + result = rutabaga_resource_map(vr->rutabaga, mblob.resource_id, &mapping);
> + CHECK(!result, cmd);
> +
> + /*
> + * There is small risk of the MemoryRegion dereferencing the pointer after
> + * rutabaga unmaps it. Please see discussion here:
> + *
> + * https://lists.gnu.org/archive/html/qemu-devel/2023-09/msg05141.html
> + *
> + * It is highly unlikely to happen in practice and doesn't affect known
> + * use cases. However, it should be fixed and is noted here for posterity.
> + */
> + for (slot = 0; slot < MAX_SLOTS; slot++) {
> + if (vr->memory_regions[slot].used) {
> + continue;
> + }
> +
> + MemoryRegion *mr = &(vr->memory_regions[slot].mr);
> + memory_region_init_ram_ptr(mr, OBJECT(vr), "blob", mapping.size,
> + mapping.ptr);
> + memory_region_add_subregion(&vb->hostmem, mblob.offset, mr);
> + vr->memory_regions[slot].resource_id = mblob.resource_id;
> + vr->memory_regions[slot].used = 1;
> + break;
> + }
> +
> + if (slot >= MAX_SLOTS) {
> + result = rutabaga_resource_unmap(vr->rutabaga, mblob.resource_id);
> + CHECK(!result, cmd);
> + }
> +
> + CHECK(slot < MAX_SLOTS, cmd);
> +
> + resp.hdr.type = VIRTIO_GPU_RESP_OK_MAP_INFO;
> + virtio_gpu_ctrl_response(g, cmd, &resp.hdr, sizeof(resp));
> +}
> +
> +static void
> +rutabaga_cmd_resource_unmap_blob(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + int32_t result;
> + uint32_t slot = 0;
> + struct virtio_gpu_simple_resource *res;
> + struct virtio_gpu_resource_unmap_blob ublob;
> +
> + VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(ublob);
> +
> + CHECK(ublob.resource_id != 0, cmd);
> +
> + res = virtio_gpu_find_resource(g, ublob.resource_id);
> + CHECK(res, cmd);
> +
> + for (slot = 0; slot < MAX_SLOTS; slot++) {
> + if (vr->memory_regions[slot].resource_id != ublob.resource_id) {
> + continue;
> + }
> +
> + MemoryRegion *mr = &(vr->memory_regions[slot].mr);
> + memory_region_del_subregion(&vb->hostmem, mr);
> +
> + vr->memory_regions[slot].resource_id = 0;
> + vr->memory_regions[slot].used = 0;
> + break;
> + }
> +
> + CHECK(slot < MAX_SLOTS, cmd);
> + result = rutabaga_resource_unmap(vr->rutabaga, res->resource_id);
> + CHECK(!result, cmd);
> +}
> +
> +static void
> +virtio_gpu_rutabaga_process_cmd(VirtIOGPU *g,
> + struct virtio_gpu_ctrl_command *cmd)
> +{
> + struct rutabaga_fence fence = { 0 };
> + int32_t result;
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + VIRTIO_GPU_FILL_CMD(cmd->cmd_hdr);
> +
> + switch (cmd->cmd_hdr.type) {
> + case VIRTIO_GPU_CMD_CTX_CREATE:
> + rutabaga_cmd_context_create(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_CTX_DESTROY:
> + rutabaga_cmd_context_destroy(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_RESOURCE_CREATE_2D:
> + rutabaga_cmd_create_resource_2d(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_RESOURCE_CREATE_3D:
> + rutabaga_cmd_create_resource_3d(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_SUBMIT_3D:
> + rutabaga_cmd_submit_3d(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D:
> + rutabaga_cmd_transfer_to_host_2d(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D:
> + rutabaga_cmd_transfer_to_host_3d(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D:
> + rutabaga_cmd_transfer_from_host_3d(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING:
> + rutabaga_cmd_attach_backing(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING:
> + rutabaga_cmd_detach_backing(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_SET_SCANOUT:
> + rutabaga_cmd_set_scanout(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_RESOURCE_FLUSH:
> + rutabaga_cmd_resource_flush(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_RESOURCE_UNREF:
> + rutabaga_cmd_resource_unref(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE:
> + rutabaga_cmd_ctx_attach_resource(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE:
> + rutabaga_cmd_ctx_detach_resource(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_GET_CAPSET_INFO:
> + rutabaga_cmd_get_capset_info(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_GET_CAPSET:
> + rutabaga_cmd_get_capset(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_GET_DISPLAY_INFO:
> + virtio_gpu_get_display_info(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_GET_EDID:
> + virtio_gpu_get_edid(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB:
> + rutabaga_cmd_resource_create_blob(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB:
> + rutabaga_cmd_resource_map_blob(g, cmd);
> + break;
> + case VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB:
> + rutabaga_cmd_resource_unmap_blob(g, cmd);
> + break;
> + default:
> + cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
> + break;
> + }
> +
> + if (cmd->finished) {
> + return;
> + }
> + if (cmd->error) {
> + error_report("%s: ctrl 0x%x, error 0x%x", __func__,
> + cmd->cmd_hdr.type, cmd->error);
> + virtio_gpu_ctrl_response_nodata(g, cmd, cmd->error);
> + return;
> + }
> + if (!(cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE)) {
> + virtio_gpu_ctrl_response_nodata(g, cmd, VIRTIO_GPU_RESP_OK_NODATA);
> + return;
> + }
> +
> + fence.flags = cmd->cmd_hdr.flags;
> + fence.ctx_id = cmd->cmd_hdr.ctx_id;
> + fence.fence_id = cmd->cmd_hdr.fence_id;
> + fence.ring_idx = cmd->cmd_hdr.ring_idx;
> +
> + trace_virtio_gpu_fence_ctrl(cmd->cmd_hdr.fence_id, cmd->cmd_hdr.type);
> +
> + result = rutabaga_create_fence(vr->rutabaga, &fence);
> + CHECK(!result, cmd);
> +}
> +
> +static void
> +virtio_gpu_rutabaga_aio_cb(void *opaque)
> +{
> + struct rutabaga_aio_data *data = opaque;
> + VirtIOGPU *g = VIRTIO_GPU(data->vr);
> + struct rutabaga_fence fence_data = data->fence;
> + struct virtio_gpu_ctrl_command *cmd, *tmp;
> +
> + uint32_t signaled_ctx_specific = fence_data.flags &
> + RUTABAGA_FLAG_INFO_RING_IDX;
> +
> + QTAILQ_FOREACH_SAFE(cmd, &g->fenceq, next, tmp) {
> + /*
> + * Due to context specific timelines.
> + */
> + uint32_t target_ctx_specific = cmd->cmd_hdr.flags &
> + RUTABAGA_FLAG_INFO_RING_IDX;
> +
> + if (signaled_ctx_specific != target_ctx_specific) {
> + continue;
> + }
> +
> + if (signaled_ctx_specific &&
> + (cmd->cmd_hdr.ring_idx != fence_data.ring_idx)) {
> + continue;
> + }
> +
> + if (cmd->cmd_hdr.fence_id > fence_data.fence_id) {
> + continue;
> + }
> +
> + trace_virtio_gpu_fence_resp(cmd->cmd_hdr.fence_id);
> + virtio_gpu_ctrl_response_nodata(g, cmd, VIRTIO_GPU_RESP_OK_NODATA);
> + QTAILQ_REMOVE(&g->fenceq, cmd, next);
> + g_free(cmd);
> + }
> +
> + g_free(data);
> +}
> +
> +static void
> +virtio_gpu_rutabaga_fence_cb(uint64_t user_data,
> + const struct rutabaga_fence *fence) {
There are a few style issues that are easy to miss, like here (opening
brace for functions on empty line)
I am not sure it's worth a resend
> + struct rutabaga_aio_data *data;
> + VirtIOGPU *g = (VirtIOGPU *)user_data;
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + /*
> + * gfxstream and both cross-domain (and even newer versions virglrenderer:
> + * see VIRGL_RENDERER_ASYNC_FENCE_CB) like to signal fence completion on
> + * threads ("callback threads") that are different from the thread that
> + * processes the command queue ("main thread").
> + *
> + * crosvm and other virtio-gpu 1.1 implementations enable callback threads
> + * via locking. However, on QEMU a deadlock is observed if
> + * virtio_gpu_ctrl_response_nodata(..) [used in the fence callback] is used
> + * from a thread that is not the main thread.
> + *
> + * The reason is QEMU's internal locking is designed to work with QEMU
> + * threads (see rcu_register_thread()) and not generic C/C++/Rust threads.
> + * For now, we can workaround this by scheduling the return of the
> + * fence descriptors on the main thread.
> + */
> +
> + data = g_new0(struct rutabaga_aio_data, 1);
> + data->vr = vr;
> + data->fence = *fence;
> + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> + virtio_gpu_rutabaga_aio_cb,
> + data);
> +}
> +
> +static void
> +virtio_gpu_rutabaga_debug_cb(uint64_t user_data,
> + const struct rutabaga_debug *debug) {
and here
> +
> + if (debug->debug_type == RUTABAGA_DEBUG_ERROR) {
maybe a switch is more appropriate?
> + error_report("%s", debug->message);
> + } else if (debug->debug_type == RUTABAGA_DEBUG_WARN) {
> + warn_report("%s", debug->message);
> + } else if (debug->debug_type == RUTABAGA_DEBUG_INFO) {
> + info_report("%s", debug->message);
> + }
> +}
> +
> +static bool virtio_gpu_rutabaga_init(VirtIOGPU *g, Error **errp)
> +{
> + int result;
> + struct rutabaga_builder builder = { 0 };
> + struct rutabaga_channel channel = { 0 };
> + struct rutabaga_channels channels = { 0 };
> +
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> + vr->rutabaga = NULL;
> +
> + builder.wsi = RUTABAGA_WSI_SURFACELESS;
> + /*
> + * Currently, if WSI is specified, the only valid strings are "surfaceless"
> + * or "headless". Surfaceless doesn't create a native window surface, but
> + * does copy from the render target to the Pixman buffer if a virtio-gpu
> + * 2D hypercall is issued. Surfacless is the default.
> + *
> + * Headless is like surfaceless, but doesn't copy to the Pixman buffer. The
> + * use case is automated testing environments where there is no need to view
> + * results.
> + *
> + * In the future, more performant virtio-gpu 2D UI integration may be added.
> + */
> + if (vr->wsi) {
> + if (g_str_equal(vr->wsi, "surfaceless")) {
> + vr->headless = false;
> + } else if (g_str_equal(vr->wsi, "headless")) {
> + vr->headless = true;
> + } else {
> + error_setg(errp, "invalid wsi option selected");
> + return false;
> + }
> + }
> +
> + builder.fence_cb = virtio_gpu_rutabaga_fence_cb;
> + builder.debug_cb = virtio_gpu_rutabaga_debug_cb;
> + builder.capset_mask = vr->capset_mask;
> + builder.user_data = (uint64_t)g;
> +
> + /*
> + * If the user doesn't specify the wayland socket path, we try to infer
> + * the socket via a process similar to the one used by libwayland.
> + * libwayland does the following:
> + *
> + * 1) If $WAYLAND_DISPLAY is set, attempt to connect to
> + * $XDG_RUNTIME_DIR/$WAYLAND_DISPLAY
> + * 2) Otherwise, attempt to connect to $XDG_RUNTIME_DIR/wayland-0
> + * 3) Otherwise, don't pass a wayland socket to rutabaga. If a guest
> + * wayland proxy is launched, it will fail to work.
> + */
> + channel.channel_type = RUTABAGA_CHANNEL_TYPE_WAYLAND;
> + g_autofree gchar *path = NULL;
> + if (!vr->wayland_socket_path) {
> + const gchar *runtime_dir = g_get_user_runtime_dir();
> + const gchar *display = g_getenv("WAYLAND_DISPLAY");
> + if (!display) {
> + display = "wayland-0";
> + }
> +
> + if (runtime_dir) {
> + path = g_build_filename(runtime_dir, display, NULL);
> + channel.channel_name = path;
> + }
> + } else {
> + channel.channel_name = vr->wayland_socket_path;
> + }
> +
> + if ((builder.capset_mask & (1 << RUTABAGA_CAPSET_CROSS_DOMAIN))) {
> + if (channel.channel_name) {
> + channels.channels = &channel;
> + channels.num_channels = 1;
> + builder.channels = &channels;
> + }
> + }
> +
> + result = rutabaga_init(&builder, &vr->rutabaga);
> + if (result) {
> + error_setg_errno(errp, -result, "Failed to init rutabaga");
> + return false;
> + }
> +
> + return true;
> +}
> +
> +static int virtio_gpu_rutabaga_get_num_capsets(VirtIOGPU *g)
> +{
> + int result;
> + uint32_t num_capsets;
> + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> +
> + result = rutabaga_get_num_capsets(vr->rutabaga, &num_capsets);
> + if (result) {
> + error_report("Failed to get capsets");
> + return 0;
> + }
> + vr->num_capsets = num_capsets;
> + return num_capsets;
> +}
> +
> +static void virtio_gpu_rutabaga_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
> +{
> + VirtIOGPU *g = VIRTIO_GPU(vdev);
> + struct virtio_gpu_ctrl_command *cmd;
> +
> + if (!virtio_queue_ready(vq)) {
> + return;
> + }
> +
> + cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command));
> + while (cmd) {
> + cmd->vq = vq;
> + cmd->error = 0;
> + cmd->finished = false;
> + QTAILQ_INSERT_TAIL(&g->cmdq, cmd, next);
> + cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command));
> + }
> +
> + virtio_gpu_process_cmdq(g);
> +}
> +
> +static void virtio_gpu_rutabaga_realize(DeviceState *qdev, Error **errp)
> +{
> + int num_capsets;
> + VirtIOGPUBase *bdev = VIRTIO_GPU_BASE(qdev);
> + VirtIOGPU *gpudev = VIRTIO_GPU(qdev);
> +
> +#if HOST_BIG_ENDIAN
> + error_setg(errp, "rutabaga is not supported on bigendian platforms");
> + return;
> +#endif
> +
> + if (!virtio_gpu_rutabaga_init(gpudev, errp)) {
> + return;
> + }
> +
> + num_capsets = virtio_gpu_rutabaga_get_num_capsets(gpudev);
> + if (!num_capsets) {
> + return;
> + }
> +
> + bdev->conf.flags |= (1 << VIRTIO_GPU_FLAG_RUTABAGA_ENABLED);
> + bdev->conf.flags |= (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED);
> + bdev->conf.flags |= (1 << VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED);
> +
> + bdev->virtio_config.num_capsets = num_capsets;
> + virtio_gpu_device_realize(qdev, errp);
> +}
> +
> +static Property virtio_gpu_rutabaga_properties[] = {
> + DEFINE_PROP_BIT64("gfxstream-vulkan", VirtIOGPURutabaga, capset_mask,
> + RUTABAGA_CAPSET_GFXSTREAM_VULKAN, false),
> + DEFINE_PROP_BIT64("cross-domain", VirtIOGPURutabaga, capset_mask,
> + RUTABAGA_CAPSET_CROSS_DOMAIN, false),
> + DEFINE_PROP_BIT64("x-gfxstream-gles", VirtIOGPURutabaga, capset_mask,
> + RUTABAGA_CAPSET_GFXSTREAM_GLES, false),
> + DEFINE_PROP_BIT64("x-gfxstream-composer", VirtIOGPURutabaga, capset_mask,
> + RUTABAGA_CAPSET_GFXSTREAM_COMPOSER, false),
> + DEFINE_PROP_STRING("wayland-socket-path", VirtIOGPURutabaga,
> + wayland_socket_path),
> + DEFINE_PROP_STRING("wsi", VirtIOGPURutabaga, wsi),
> + DEFINE_PROP_END_OF_LIST(),
> +};
> +
> +static void virtio_gpu_rutabaga_class_init(ObjectClass *klass, void *data)
> +{
> + DeviceClass *dc = DEVICE_CLASS(klass);
> + VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
> + VirtIOGPUBaseClass *vbc = VIRTIO_GPU_BASE_CLASS(klass);
> + VirtIOGPUClass *vgc = VIRTIO_GPU_CLASS(klass);
> +
> + vbc->gl_flushed = virtio_gpu_rutabaga_gl_flushed;
> + vgc->handle_ctrl = virtio_gpu_rutabaga_handle_ctrl;
> + vgc->process_cmd = virtio_gpu_rutabaga_process_cmd;
> + vgc->update_cursor_data = virtio_gpu_rutabaga_update_cursor;
> +
> + vdc->realize = virtio_gpu_rutabaga_realize;
> + device_class_set_props(dc, virtio_gpu_rutabaga_properties);
> +}
> +
> +static const TypeInfo virtio_gpu_rutabaga_info[] = {
> + {
> + .name = TYPE_VIRTIO_GPU_RUTABAGA,
> + .parent = TYPE_VIRTIO_GPU,
> + .instance_size = sizeof(VirtIOGPURutabaga),
> + .class_init = virtio_gpu_rutabaga_class_init,
> + },
> +};
> +
> +DEFINE_TYPES(virtio_gpu_rutabaga_info)
> +
> +module_obj(TYPE_VIRTIO_GPU_RUTABAGA);
> +module_kconfig(VIRTIO_GPU);
> +module_dep("hw-display-virtio-gpu");
> diff --git a/hw/display/virtio-vga-rutabaga.c b/hw/display/virtio-vga-rutabaga.c
> new file mode 100644
> index 0000000000..a7bef6da24
> --- /dev/null
> +++ b/hw/display/virtio-vga-rutabaga.c
> @@ -0,0 +1,50 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later */
> +
> +#include "qemu/osdep.h"
> +#include "hw/pci/pci.h"
> +#include "hw/qdev-properties.h"
> +#include "hw/virtio/virtio-gpu.h"
> +#include "hw/display/vga.h"
> +#include "qapi/error.h"
> +#include "qemu/module.h"
> +#include "virtio-vga.h"
> +#include "qom/object.h"
> +
> +#define TYPE_VIRTIO_VGA_RUTABAGA "virtio-vga-rutabaga"
> +
> +OBJECT_DECLARE_SIMPLE_TYPE(VirtIOVGARutabaga, VIRTIO_VGA_RUTABAGA)
> +
> +struct VirtIOVGARutabaga {
> + VirtIOVGABase parent_obj;
> +
> + VirtIOGPURutabaga vdev;
> +};
> +
> +static void virtio_vga_rutabaga_inst_initfn(Object *obj)
> +{
> + VirtIOVGARutabaga *dev = VIRTIO_VGA_RUTABAGA(obj);
> +
> + virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
> + TYPE_VIRTIO_GPU_RUTABAGA);
> + VIRTIO_VGA_BASE(dev)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
> +}
> +
> +static VirtioPCIDeviceTypeInfo virtio_vga_rutabaga_info = {
> + .generic_name = TYPE_VIRTIO_VGA_RUTABAGA,
> + .parent = TYPE_VIRTIO_VGA_BASE,
> + .instance_size = sizeof(VirtIOVGARutabaga),
> + .instance_init = virtio_vga_rutabaga_inst_initfn,
> +};
> +module_obj(TYPE_VIRTIO_VGA_RUTABAGA);
> +module_kconfig(VIRTIO_VGA);
> +
> +static void virtio_vga_register_types(void)
> +{
> + if (have_vga) {
> + virtio_pci_types_register(&virtio_vga_rutabaga_info);
> + }
> +}
> +
> +type_init(virtio_vga_register_types)
> +
> +module_dep("hw-display-virtio-vga");
> --
> 2.42.0.609.gbb76f46606-goog
>
^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH v17 0/9] gfxstream + rutabaga_gfx
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
` (8 preceding siblings ...)
2023-10-06 1:08 ` [PATCH v17 9/9] docs/system: add basic virtio-gpu documentation Gurchetan Singh
@ 2023-10-09 7:15 ` Marc-André Lureau
2023-10-17 1:26 ` Gurchetan Singh
9 siblings, 1 reply; 17+ messages in thread
From: Marc-André Lureau @ 2023-10-09 7:15 UTC (permalink / raw)
To: Gurchetan Singh, Gerd Hoffmann
Cc: qemu-devel, akihiko.odaki, ray.huang, alex.bennee, shentey, hi,
ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
Hi
On Fri, Oct 6, 2023 at 5:08 AM Gurchetan Singh
<gurchetansingh@chromium.org> wrote:
>
> From: Gurchetan Singh <gurchetansingh@google.com>
>
> Branch containing changes:
>
> https://gitlab.com/gurchetansingh/qemu/-/commits/qemu-gfxstream-v17
>
> Changes since v16:
>
> - Fixed typo mentioned here:
>
> https://lists.gnu.org/archive/html/qemu-devel/2023-10/msg01407.html
>
> Antonio Caggiano (2):
> virtio-gpu: CONTEXT_INIT feature
> virtio-gpu: blob prep
>
> Dr. David Alan Gilbert (1):
> virtio: Add shared memory capability
>
> Gerd Hoffmann (1):
> virtio-gpu: hostmem
>
> Gurchetan Singh (5):
> gfxstream + rutabaga prep: added need defintions, fields, and options
> gfxstream + rutabaga: add initial support for gfxstream
> gfxstream + rutabaga: meson support
> gfxstream + rutabaga: enable rutabaga
> docs/system: add basic virtio-gpu documentation
>
Except for a few misc style issues, the series looks good to me.
Gerd, as the virtio-gpu "odd fixes" maintainer, any chance you take a
quick look and ack the series? Even better if you send a PR :)
thanks
^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH v17 6/9] gfxstream + rutabaga: add initial support for gfxstream
2023-10-09 7:11 ` Marc-André Lureau
@ 2023-10-10 0:06 ` Gurchetan Singh
0 siblings, 0 replies; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-10 0:06 UTC (permalink / raw)
To: Marc-André Lureau
Cc: qemu-devel, akihiko.odaki, ray.huang, alex.bennee, shentey, hi,
ernunes, manos.pitsidianakis, mark.cave-ayland, thuth
[-- Attachment #1: Type: text/plain, Size: 51077 bytes --]
On Mon, Oct 9, 2023 at 12:11 AM Marc-André Lureau <
marcandre.lureau@redhat.com> wrote:
> On Fri, Oct 6, 2023 at 5:09 AM Gurchetan Singh
> <gurchetansingh@chromium.org> wrote:
> >
> > This adds initial support for gfxstream and cross-domain. Both
> > features rely on virtio-gpu blob resources and context types, which
> > are also implemented in this patch.
> >
> > gfxstream has a long and illustrious history in Android graphics
> > paravirtualization. It has been powering graphics in the Android
> > Studio Emulator for more than a decade, which is the main developer
> > platform.
> >
> > Originally conceived by Jesse Hall, it was first known as "EmuGL" [a].
> > The key design characteristic was a 1:1 threading model and
> > auto-generation, which fit nicely with the OpenGLES spec. It also
> > allowed easy layering with ANGLE on the host, which provides the GLES
> > implementations on Windows or MacOS enviroments.
> >
> > gfxstream has traditionally been maintained by a single engineer, and
> > between 2015 to 2021, the goldfish throne passed to Frank Yang.
> > Historians often remark this glorious reign ("pax gfxstreama" is the
> > academic term) was comparable to that of Augustus and both Queen
> > Elizabeths. Just to name a few accomplishments in a resplendent
> > panoply: higher versions of GLES, address space graphics, snapshot
> > support and CTS compliant Vulkan [b].
> >
> > One major drawback was the use of out-of-tree goldfish drivers.
> > Android engineers didn't know much about DRM/KMS and especially TTM so
> > a simple guest to host pipe was conceived.
> >
> > Luckily, virtio-gpu 3D started to emerge in 2016 due to the work of
> > the Mesa/virglrenderer communities. In 2018, the initial virtio-gpu
> > port of gfxstream was done by Cuttlefish enthusiast Alistair Delva.
> > It was a symbol compatible replacement of virglrenderer [c] and named
> > "AVDVirglrenderer". This implementation forms the basis of the
> > current gfxstream host implementation still in use today.
> >
> > cross-domain support follows a similar arc. Originally conceived by
> > Wayland aficionado David Reveman and crosvm enjoyer Zach Reizner in
> > 2018, it initially relied on the downstream "virtio-wl" device.
> >
> > In 2020 and 2021, virtio-gpu was extended to include blob resources
> > and multiple timelines by yours truly, features gfxstream/cross-domain
> > both require to function correctly.
> >
> > Right now, we stand at the precipice of a truly fantastic possibility:
> > the Android Emulator powered by upstream QEMU and upstream Linux
> > kernel. gfxstream will then be packaged properfully, and app
> > developers can even fix gfxstream bugs on their own if they encounter
> > them.
> >
> > It's been quite the ride, my friends. Where will gfxstream head next,
> > nobody really knows. I wouldn't be surprised if it's around for
> > another decade, maintained by a new generation of Android graphics
> > enthusiasts.
> >
> > Technical details:
> > - Very simple initial display integration: just used Pixman
> > - Largely, 1:1 mapping of virtio-gpu hypercalls to rutabaga function
> > calls
> >
> > Next steps for Android VMs:
> > - The next step would be improving display integration and UI
> interfaces
> > with the goal of the QEMU upstream graphics being in an emulator
> > release [d].
> >
> > Next steps for Linux VMs for display virtualization:
> > - For widespread distribution, someone needs to package Sommelier or
> the
> > wayland-proxy-virtwl [e] ideally into Debian main. In addition, newer
> > versions of the Linux kernel come with DRM_VIRTIO_GPU_KMS option,
> > which allows disabling KMS hypercalls. If anyone cares enough, it'll
> > probably be possible to build a custom VM variant that uses this
> display
> > virtualization strategy.
> >
> > [a]
> https://android-review.googlesource.com/c/platform/development/+/34470
> > [b]
> https://android-review.googlesource.com/q/topic:%22vulkan-hostconnection-start%22
> > [c]
> https://android-review.googlesource.com/c/device/generic/goldfish-opengl/+/761927
> > [d] https://developer.android.com/studio/releases/emulator
> > [e] https://github.com/talex5/wayland-proxy-virtwl
> >
> > Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
> > Tested-by: Alyssa Ross <hi@alyssa.is>
> > Tested-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
> > Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
> > Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
> > Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
> > Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
> > ---
> > hw/display/virtio-gpu-pci-rutabaga.c | 47 ++
> > hw/display/virtio-gpu-rutabaga.c | 1113 ++++++++++++++++++++++++++
> > hw/display/virtio-vga-rutabaga.c | 50 ++
> > 3 files changed, 1210 insertions(+)
> > create mode 100644 hw/display/virtio-gpu-pci-rutabaga.c
> > create mode 100644 hw/display/virtio-gpu-rutabaga.c
> > create mode 100644 hw/display/virtio-vga-rutabaga.c
> >
> > diff --git a/hw/display/virtio-gpu-pci-rutabaga.c
> b/hw/display/virtio-gpu-pci-rutabaga.c
> > new file mode 100644
> > index 0000000000..c96729e198
> > --- /dev/null
> > +++ b/hw/display/virtio-gpu-pci-rutabaga.c
> > @@ -0,0 +1,47 @@
> > +/* SPDX-License-Identifier: GPL-2.0-or-later */
> > +
> > +#include "qemu/osdep.h"
> > +#include "qapi/error.h"
> > +#include "qemu/module.h"
> > +#include "hw/pci/pci.h"
> > +#include "hw/qdev-properties.h"
> > +#include "hw/virtio/virtio.h"
> > +#include "hw/virtio/virtio-bus.h"
> > +#include "hw/virtio/virtio-gpu-pci.h"
> > +#include "qom/object.h"
> > +
> > +#define TYPE_VIRTIO_GPU_RUTABAGA_PCI "virtio-gpu-rutabaga-pci"
> > +OBJECT_DECLARE_SIMPLE_TYPE(VirtIOGPURutabagaPCI,
> VIRTIO_GPU_RUTABAGA_PCI)
> > +
> > +struct VirtIOGPURutabagaPCI {
> > + VirtIOGPUPCIBase parent_obj;
> > +
> > + VirtIOGPURutabaga vdev;
> > +};
> > +
> > +static void virtio_gpu_rutabaga_initfn(Object *obj)
> > +{
> > + VirtIOGPURutabagaPCI *dev = VIRTIO_GPU_RUTABAGA_PCI(obj);
> > +
> > + virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
> > + TYPE_VIRTIO_GPU_RUTABAGA);
> > + VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
> > +}
> > +
> > +static const TypeInfo virtio_gpu_rutabaga_pci_info[] = {
> > + {
> > + .name = TYPE_VIRTIO_GPU_RUTABAGA_PCI,
> > + .parent = TYPE_VIRTIO_GPU_PCI_BASE,
> > + .instance_size = sizeof(VirtIOGPURutabagaPCI),
> > + .instance_init = virtio_gpu_rutabaga_initfn,
> > + .interfaces = (InterfaceInfo[]) {
> > + { INTERFACE_CONVENTIONAL_PCI_DEVICE },
> > + }
> > + },
> > +};
> > +
> > +DEFINE_TYPES(virtio_gpu_rutabaga_pci_info)
> > +
> > +module_obj(TYPE_VIRTIO_GPU_RUTABAGA_PCI);
> > +module_kconfig(VIRTIO_PCI);
> > +module_dep("hw-display-virtio-gpu-pci");
> > diff --git a/hw/display/virtio-gpu-rutabaga.c
> b/hw/display/virtio-gpu-rutabaga.c
> > new file mode 100644
> > index 0000000000..e6f799a14c
> > --- /dev/null
> > +++ b/hw/display/virtio-gpu-rutabaga.c
> > @@ -0,0 +1,1113 @@
> > +/* SPDX-License-Identifier: GPL-2.0-or-later */
> > +
> > +#include "qemu/osdep.h"
> > +#include "qapi/error.h"
> > +#include "qemu/error-report.h"
> > +#include "qemu/iov.h"
> > +#include "trace.h"
> > +#include "hw/virtio/virtio.h"
> > +#include "hw/virtio/virtio-gpu.h"
> > +#include "hw/virtio/virtio-gpu-pixman.h"
> > +#include "hw/virtio/virtio-iommu.h"
> > +
> > +#include <glib/gmem.h>
> > +#include <rutabaga_gfx/rutabaga_gfx_ffi.h>
> > +
> > +#define CHECK(condition, cmd)
> \
> > + do {
> \
> > + if (!(condition)) {
> \
> > + error_report("CHECK failed in %s() %s:" "%d", __func__,
> \
> > + __FILE__, __LINE__);
> \
> > + (cmd)->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
> \
> > + return;
> \
> > + }
> \
> > + } while (0)
> > +
> > +struct rutabaga_aio_data {
> > + struct VirtIOGPURutabaga *vr;
> > + struct rutabaga_fence fence;
> > +};
> > +
> > +static void
> > +virtio_gpu_rutabaga_update_cursor(VirtIOGPU *g, struct
> virtio_gpu_scanout *s,
> > + uint32_t resource_id)
> > +{
> > + struct virtio_gpu_simple_resource *res;
> > + struct rutabaga_transfer transfer = { 0 };
> > + struct iovec transfer_iovec;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + res = virtio_gpu_find_resource(g, resource_id);
> > + if (!res) {
> > + return;
> > + }
> > +
> > + if (res->width != s->current_cursor->width ||
> > + res->height != s->current_cursor->height) {
> > + return;
> > + }
> > +
> > + transfer.x = 0;
> > + transfer.y = 0;
> > + transfer.z = 0;
> > + transfer.w = res->width;
> > + transfer.h = res->height;
> > + transfer.d = 1;
> > +
> > + transfer_iovec.iov_base = s->current_cursor->data;
> > + transfer_iovec.iov_len = res->width * res->height * 4;
> > +
> > + rutabaga_resource_transfer_read(vr->rutabaga, 0,
> > + resource_id, &transfer,
> > + &transfer_iovec);
> > +}
> > +
> > +static void
> > +virtio_gpu_rutabaga_gl_flushed(VirtIOGPUBase *b)
> > +{
> > + VirtIOGPU *g = VIRTIO_GPU(b);
> > + virtio_gpu_process_cmdq(g);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_create_resource_2d(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct rutabaga_create_3d rc_3d = { 0 };
> > + struct virtio_gpu_simple_resource *res;
> > + struct virtio_gpu_resource_create_2d c2d;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(c2d);
> > + trace_virtio_gpu_cmd_res_create_2d(c2d.resource_id, c2d.format,
> > + c2d.width, c2d.height);
> > +
> > + rc_3d.target = 2;
> > + rc_3d.format = c2d.format;
> > + rc_3d.bind = (1 << 1);
> > + rc_3d.width = c2d.width;
> > + rc_3d.height = c2d.height;
> > + rc_3d.depth = 1;
> > + rc_3d.array_size = 1;
> > + rc_3d.last_level = 0;
> > + rc_3d.nr_samples = 0;
> > + rc_3d.flags = VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP;
> > +
> > + result = rutabaga_resource_create_3d(vr->rutabaga, c2d.resource_id,
> &rc_3d);
> > + CHECK(!result, cmd);
> > +
> > + res = g_new0(struct virtio_gpu_simple_resource, 1);
> > + res->width = c2d.width;
> > + res->height = c2d.height;
> > + res->format = c2d.format;
> > + res->resource_id = c2d.resource_id;
> > +
> > + QTAILQ_INSERT_HEAD(&g->reslist, res, next);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_create_resource_3d(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct rutabaga_create_3d rc_3d = { 0 };
> > + struct virtio_gpu_simple_resource *res;
> > + struct virtio_gpu_resource_create_3d c3d;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(c3d);
> > +
> > + trace_virtio_gpu_cmd_res_create_3d(c3d.resource_id, c3d.format,
> > + c3d.width, c3d.height,
> c3d.depth);
> > +
> > + rc_3d.target = c3d.target;
> > + rc_3d.format = c3d.format;
> > + rc_3d.bind = c3d.bind;
> > + rc_3d.width = c3d.width;
> > + rc_3d.height = c3d.height;
> > + rc_3d.depth = c3d.depth;
> > + rc_3d.array_size = c3d.array_size;
> > + rc_3d.last_level = c3d.last_level;
> > + rc_3d.nr_samples = c3d.nr_samples;
> > + rc_3d.flags = c3d.flags;
> > +
> > + result = rutabaga_resource_create_3d(vr->rutabaga, c3d.resource_id,
> &rc_3d);
> > + CHECK(!result, cmd);
> > +
> > + res = g_new0(struct virtio_gpu_simple_resource, 1);
> > + res->width = c3d.width;
> > + res->height = c3d.height;
> > + res->format = c3d.format;
> > + res->resource_id = c3d.resource_id;
> > +
> > + QTAILQ_INSERT_HEAD(&g->reslist, res, next);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_resource_unref(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct virtio_gpu_simple_resource *res;
> > + struct virtio_gpu_resource_unref unref;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(unref);
> > +
> > + trace_virtio_gpu_cmd_res_unref(unref.resource_id);
> > +
> > + res = virtio_gpu_find_resource(g, unref.resource_id);
> > + CHECK(res, cmd);
> > +
> > + result = rutabaga_resource_unref(vr->rutabaga, unref.resource_id);
> > + CHECK(!result, cmd);
> > +
> > + if (res->image) {
> > + pixman_image_unref(res->image);
> > + }
> > +
> > + QTAILQ_REMOVE(&g->reslist, res, next);
> > + g_free(res);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_context_create(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct virtio_gpu_ctx_create cc;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(cc);
> > + trace_virtio_gpu_cmd_ctx_create(cc.hdr.ctx_id,
> > + cc.debug_name);
> > +
> > + result = rutabaga_context_create(vr->rutabaga, cc.hdr.ctx_id,
> > + cc.context_init, cc.debug_name,
> cc.nlen);
> > + CHECK(!result, cmd);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_context_destroy(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct virtio_gpu_ctx_destroy cd;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(cd);
> > + trace_virtio_gpu_cmd_ctx_destroy(cd.hdr.ctx_id);
> > +
> > + result = rutabaga_context_destroy(vr->rutabaga, cd.hdr.ctx_id);
> > + CHECK(!result, cmd);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_resource_flush(VirtIOGPU *g, struct
> virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result, i;
> > + struct virtio_gpu_scanout *scanout = NULL;
> > + struct virtio_gpu_simple_resource *res;
> > + struct rutabaga_transfer transfer = { 0 };
> > + struct iovec transfer_iovec;
> > + struct virtio_gpu_resource_flush rf;
> > + bool found = false;
> > +
> > + VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > + if (vr->headless) {
> > + return;
> > + }
> > +
> > + VIRTIO_GPU_FILL_CMD(rf);
> > + 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);
> > + CHECK(res, cmd);
> > +
> > + for (i = 0; i < vb->conf.max_outputs; i++) {
> > + scanout = &vb->scanout[i];
> > + if (i == res->scanout_bitmask) {
> > + found = true;
> > + break;
> > + }
> > + }
> > +
> > + if (!found) {
> > + return;
> > + }
> > +
> > + transfer.x = 0;
> > + transfer.y = 0;
> > + transfer.z = 0;
> > + transfer.w = res->width;
> > + transfer.h = res->height;
> > + transfer.d = 1;
> > +
> > + transfer_iovec.iov_base = pixman_image_get_data(res->image);
> > + transfer_iovec.iov_len = res->width * res->height * 4;
> > +
> > + result = rutabaga_resource_transfer_read(vr->rutabaga, 0,
> > + rf.resource_id, &transfer,
> > + &transfer_iovec);
> > + CHECK(!result, cmd);
> > + dpy_gfx_update_full(scanout->con);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_set_scanout(VirtIOGPU *g, struct virtio_gpu_ctrl_command
> *cmd)
> > +{
> > + struct virtio_gpu_simple_resource *res;
> > + struct virtio_gpu_scanout *scanout = NULL;
> > + struct virtio_gpu_set_scanout ss;
> > +
> > + VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > + if (vr->headless) {
> > + return;
> > + }
> > +
> > + VIRTIO_GPU_FILL_CMD(ss);
> > + trace_virtio_gpu_cmd_set_scanout(ss.scanout_id, ss.resource_id,
> > + ss.r.width, ss.r.height, ss.r.x,
> ss.r.y);
> > +
> > + CHECK(ss.scanout_id < VIRTIO_GPU_MAX_SCANOUTS, cmd);
> > + scanout = &vb->scanout[ss.scanout_id];
> > +
> > + if (ss.resource_id == 0) {
> > + dpy_gfx_replace_surface(scanout->con, NULL);
> > + dpy_gl_scanout_disable(scanout->con);
> > + return;
> > + }
> > +
> > + res = virtio_gpu_find_resource(g, ss.resource_id);
> > + CHECK(res, cmd);
> > +
> > + if (!res->image) {
> > + pixman_format_code_t pformat;
> > + pformat = virtio_gpu_get_pixman_format(res->format);
> > + CHECK(pformat, cmd);
> > +
> > + res->image = pixman_image_create_bits(pformat,
> > + res->width,
> > + res->height,
> > + NULL, 0);
> > + CHECK(res->image, cmd);
> > + pixman_image_ref(res->image);
> > + }
> > +
> > + vb->enable = 1;
> > +
> > + /* realloc the surface ptr */
> > + scanout->ds = qemu_create_displaysurface_pixman(res->image);
> > + dpy_gfx_replace_surface(scanout->con, NULL);
> > + dpy_gfx_replace_surface(scanout->con, scanout->ds);
> > + res->scanout_bitmask = ss.scanout_id;
> > +}
> > +
> > +static void
> > +rutabaga_cmd_submit_3d(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct virtio_gpu_cmd_submit cs;
> > + struct rutabaga_command rutabaga_cmd = { 0 };
> > + g_autofree uint8_t *buf = NULL;
> > + size_t s;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(cs);
> > + trace_virtio_gpu_cmd_ctx_submit(cs.hdr.ctx_id, cs.size);
> > +
> > + buf = g_new0(uint8_t, cs.size);
> > + s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num,
> > + sizeof(cs), buf, cs.size);
> > + CHECK(s == cs.size, cmd);
> > +
> > + rutabaga_cmd.ctx_id = cs.hdr.ctx_id;
> > + rutabaga_cmd.cmd = buf;
> > + rutabaga_cmd.cmd_size = cs.size;
> > +
> > + result = rutabaga_submit_command(vr->rutabaga, &rutabaga_cmd);
> > + CHECK(!result, cmd);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_transfer_to_host_2d(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct rutabaga_transfer transfer = { 0 };
> > + struct virtio_gpu_transfer_to_host_2d t2d;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(t2d);
> > + trace_virtio_gpu_cmd_res_xfer_toh_2d(t2d.resource_id);
> > +
> > + transfer.x = t2d.r.x;
> > + transfer.y = t2d.r.y;
> > + transfer.z = 0;
> > + transfer.w = t2d.r.width;
> > + transfer.h = t2d.r.height;
> > + transfer.d = 1;
> > +
> > + result = rutabaga_resource_transfer_write(vr->rutabaga, 0,
> t2d.resource_id,
> > + &transfer);
> > + CHECK(!result, cmd);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_transfer_to_host_3d(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct rutabaga_transfer transfer = { 0 };
> > + struct virtio_gpu_transfer_host_3d t3d;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(t3d);
> > + trace_virtio_gpu_cmd_res_xfer_toh_3d(t3d.resource_id);
> > +
> > + transfer.x = t3d.box.x;
> > + transfer.y = t3d.box.y;
> > + transfer.z = t3d.box.z;
> > + transfer.w = t3d.box.w;
> > + transfer.h = t3d.box.h;
> > + transfer.d = t3d.box.d;
> > + transfer.level = t3d.level;
> > + transfer.stride = t3d.stride;
> > + transfer.layer_stride = t3d.layer_stride;
> > + transfer.offset = t3d.offset;
> > +
> > + result = rutabaga_resource_transfer_write(vr->rutabaga,
> t3d.hdr.ctx_id,
> > + t3d.resource_id,
> &transfer);
> > + CHECK(!result, cmd);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_transfer_from_host_3d(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct rutabaga_transfer transfer = { 0 };
> > + struct virtio_gpu_transfer_host_3d t3d;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(t3d);
> > + trace_virtio_gpu_cmd_res_xfer_fromh_3d(t3d.resource_id);
> > +
> > + transfer.x = t3d.box.x;
> > + transfer.y = t3d.box.y;
> > + transfer.z = t3d.box.z;
> > + transfer.w = t3d.box.w;
> > + transfer.h = t3d.box.h;
> > + transfer.d = t3d.box.d;
> > + transfer.level = t3d.level;
> > + transfer.stride = t3d.stride;
> > + transfer.layer_stride = t3d.layer_stride;
> > + transfer.offset = t3d.offset;
> > +
> > + result = rutabaga_resource_transfer_read(vr->rutabaga,
> t3d.hdr.ctx_id,
> > + t3d.resource_id,
> &transfer, NULL);
> > + CHECK(!result, cmd);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_attach_backing(VirtIOGPU *g, struct
> virtio_gpu_ctrl_command *cmd)
> > +{
> > + struct rutabaga_iovecs vecs = { 0 };
> > + struct virtio_gpu_simple_resource *res;
> > + struct virtio_gpu_resource_attach_backing att_rb;
> > + int ret;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(att_rb);
> > + trace_virtio_gpu_cmd_res_back_attach(att_rb.resource_id);
> > +
> > + res = virtio_gpu_find_resource(g, att_rb.resource_id);
> > + CHECK(res, cmd);
> > + CHECK(!res->iov, cmd);
> > +
> > + ret = virtio_gpu_create_mapping_iov(g, att_rb.nr_entries,
> sizeof(att_rb),
> > + cmd, NULL, &res->iov,
> &res->iov_cnt);
> > + CHECK(!ret, cmd);
> > +
> > + vecs.iovecs = res->iov;
> > + vecs.num_iovecs = res->iov_cnt;
> > +
> > + ret = rutabaga_resource_attach_backing(vr->rutabaga,
> att_rb.resource_id,
> > + &vecs);
> > + if (ret != 0) {
> > + virtio_gpu_cleanup_mapping(g, res);
> > + }
> > +
> > + CHECK(!ret, cmd);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_detach_backing(VirtIOGPU *g, struct
> virtio_gpu_ctrl_command *cmd)
> > +{
> > + struct virtio_gpu_simple_resource *res;
> > + struct virtio_gpu_resource_detach_backing detach_rb;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(detach_rb);
> > + trace_virtio_gpu_cmd_res_back_detach(detach_rb.resource_id);
> > +
> > + res = virtio_gpu_find_resource(g, detach_rb.resource_id);
> > + CHECK(res, cmd);
> > +
> > + rutabaga_resource_detach_backing(vr->rutabaga,
> > + detach_rb.resource_id);
> > +
> > + virtio_gpu_cleanup_mapping(g, res);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_ctx_attach_resource(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct virtio_gpu_ctx_resource att_res;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(att_res);
> > + trace_virtio_gpu_cmd_ctx_res_attach(att_res.hdr.ctx_id,
> > + att_res.resource_id);
> > +
> > + result = rutabaga_context_attach_resource(vr->rutabaga,
> att_res.hdr.ctx_id,
> > + att_res.resource_id);
> > + CHECK(!result, cmd);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_ctx_detach_resource(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct virtio_gpu_ctx_resource det_res;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(det_res);
> > + trace_virtio_gpu_cmd_ctx_res_detach(det_res.hdr.ctx_id,
> > + det_res.resource_id);
> > +
> > + result = rutabaga_context_detach_resource(vr->rutabaga,
> det_res.hdr.ctx_id,
> > + det_res.resource_id);
> > + CHECK(!result, cmd);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_get_capset_info(VirtIOGPU *g, struct
> virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + struct virtio_gpu_get_capset_info info;
> > + struct virtio_gpu_resp_capset_info resp;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(info);
> > +
> > + result = rutabaga_get_capset_info(vr->rutabaga, info.capset_index,
> > + &resp.capset_id,
> &resp.capset_max_version,
> > + &resp.capset_max_size);
> > + CHECK(!result, cmd);
> > +
> > + resp.hdr.type = VIRTIO_GPU_RESP_OK_CAPSET_INFO;
> > + virtio_gpu_ctrl_response(g, cmd, &resp.hdr, sizeof(resp));
> > +}
> > +
> > +static void
> > +rutabaga_cmd_get_capset(VirtIOGPU *g, struct virtio_gpu_ctrl_command
> *cmd)
> > +{
> > + int32_t result;
> > + struct virtio_gpu_get_capset gc;
> > + struct virtio_gpu_resp_capset *resp;
> > + uint32_t capset_size, capset_version;
> > + uint32_t current_id, i;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(gc);
> > + for (i = 0; i < vr->num_capsets; i++) {
> > + result = rutabaga_get_capset_info(vr->rutabaga, i,
> > + ¤t_id, &capset_version,
> > + &capset_size);
> > + CHECK(!result, cmd);
> > +
> > + if (current_id == gc.capset_id) {
> > + break;
> > + }
> > + }
> > +
> > + CHECK(i < vr->num_capsets, cmd);
> > +
> > + resp = g_malloc0(sizeof(*resp) + capset_size);
> > + resp->hdr.type = VIRTIO_GPU_RESP_OK_CAPSET;
> > + rutabaga_get_capset(vr->rutabaga, gc.capset_id, gc.capset_version,
> > + resp->capset_data, capset_size);
> > +
> > + virtio_gpu_ctrl_response(g, cmd, &resp->hdr, sizeof(*resp) +
> capset_size);
> > + g_free(resp);
> > +}
> > +
> > +static void
> > +rutabaga_cmd_resource_create_blob(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int result;
> > + struct rutabaga_iovecs vecs = { 0 };
> > + g_autofree struct virtio_gpu_simple_resource *res = NULL;
> > + struct virtio_gpu_resource_create_blob cblob;
> > + struct rutabaga_create_blob rc_blob = { 0 };
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(cblob);
> > + trace_virtio_gpu_cmd_res_create_blob(cblob.resource_id, cblob.size);
> > +
> > + CHECK(cblob.resource_id != 0, cmd);
> > +
> > + 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_HOST3D) {
> > + result = virtio_gpu_create_mapping_iov(g, cblob.nr_entries,
> > + sizeof(cblob), cmd,
> &res->addrs,
> > + &res->iov,
> &res->iov_cnt);
> > + CHECK(!result, cmd);
> > + }
> > +
> > + rc_blob.blob_id = cblob.blob_id;
> > + rc_blob.blob_mem = cblob.blob_mem;
> > + rc_blob.blob_flags = cblob.blob_flags;
> > + rc_blob.size = cblob.size;
> > +
> > + vecs.iovecs = res->iov;
> > + vecs.num_iovecs = res->iov_cnt;
> > +
> > + result = rutabaga_resource_create_blob(vr->rutabaga,
> cblob.hdr.ctx_id,
> > + cblob.resource_id, &rc_blob,
> &vecs,
> > + NULL);
> > +
> > + if (result && cblob.blob_mem != VIRTIO_GPU_BLOB_MEM_HOST3D) {
> > + virtio_gpu_cleanup_mapping(g, res);
> > + }
> > +
> > + CHECK(!result, cmd);
> > +
> > + QTAILQ_INSERT_HEAD(&g->reslist, res, next);
> > + res = NULL;
> > +}
> > +
> > +static void
> > +rutabaga_cmd_resource_map_blob(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + uint32_t map_info = 0;
> > + uint32_t slot = 0;
> > + struct virtio_gpu_simple_resource *res;
> > + struct rutabaga_mapping mapping = { 0 };
> > + struct virtio_gpu_resource_map_blob mblob;
> > + struct virtio_gpu_resp_map_info resp = { 0 };
> > +
> > + VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(mblob);
> > +
> > + CHECK(mblob.resource_id != 0, cmd);
> > +
> > + res = virtio_gpu_find_resource(g, mblob.resource_id);
> > + CHECK(res, cmd);
> > +
> > + result = rutabaga_resource_map_info(vr->rutabaga, mblob.resource_id,
> > + &map_info);
> > + CHECK(!result, cmd);
> > +
> > + /*
> > + * RUTABAGA_MAP_ACCESS_* flags are not part of the virtio-gpu spec,
> but do
> > + * exist to potentially allow the hypervisor to restrict write
> access to
> > + * memory. QEMU does not need to use this functionality at the
> moment.
> > + */
> > + resp.map_info = map_info & RUTABAGA_MAP_CACHE_MASK;
> > +
> > + result = rutabaga_resource_map(vr->rutabaga, mblob.resource_id,
> &mapping);
> > + CHECK(!result, cmd);
> > +
> > + /*
> > + * There is small risk of the MemoryRegion dereferencing the
> pointer after
> > + * rutabaga unmaps it. Please see discussion here:
> > + *
> > + *
> https://lists.gnu.org/archive/html/qemu-devel/2023-09/msg05141.html
> > + *
> > + * It is highly unlikely to happen in practice and doesn't affect
> known
> > + * use cases. However, it should be fixed and is noted here for
> posterity.
> > + */
> > + for (slot = 0; slot < MAX_SLOTS; slot++) {
> > + if (vr->memory_regions[slot].used) {
> > + continue;
> > + }
> > +
> > + MemoryRegion *mr = &(vr->memory_regions[slot].mr);
> > + memory_region_init_ram_ptr(mr, OBJECT(vr), "blob", mapping.size,
> > + mapping.ptr);
> > + memory_region_add_subregion(&vb->hostmem, mblob.offset, mr);
> > + vr->memory_regions[slot].resource_id = mblob.resource_id;
> > + vr->memory_regions[slot].used = 1;
> > + break;
> > + }
> > +
> > + if (slot >= MAX_SLOTS) {
> > + result = rutabaga_resource_unmap(vr->rutabaga,
> mblob.resource_id);
> > + CHECK(!result, cmd);
> > + }
> > +
> > + CHECK(slot < MAX_SLOTS, cmd);
> > +
> > + resp.hdr.type = VIRTIO_GPU_RESP_OK_MAP_INFO;
> > + virtio_gpu_ctrl_response(g, cmd, &resp.hdr, sizeof(resp));
> > +}
> > +
> > +static void
> > +rutabaga_cmd_resource_unmap_blob(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + int32_t result;
> > + uint32_t slot = 0;
> > + struct virtio_gpu_simple_resource *res;
> > + struct virtio_gpu_resource_unmap_blob ublob;
> > +
> > + VirtIOGPUBase *vb = VIRTIO_GPU_BASE(g);
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(ublob);
> > +
> > + CHECK(ublob.resource_id != 0, cmd);
> > +
> > + res = virtio_gpu_find_resource(g, ublob.resource_id);
> > + CHECK(res, cmd);
> > +
> > + for (slot = 0; slot < MAX_SLOTS; slot++) {
> > + if (vr->memory_regions[slot].resource_id != ublob.resource_id) {
> > + continue;
> > + }
> > +
> > + MemoryRegion *mr = &(vr->memory_regions[slot].mr);
> > + memory_region_del_subregion(&vb->hostmem, mr);
> > +
> > + vr->memory_regions[slot].resource_id = 0;
> > + vr->memory_regions[slot].used = 0;
> > + break;
> > + }
> > +
> > + CHECK(slot < MAX_SLOTS, cmd);
> > + result = rutabaga_resource_unmap(vr->rutabaga, res->resource_id);
> > + CHECK(!result, cmd);
> > +}
> > +
> > +static void
> > +virtio_gpu_rutabaga_process_cmd(VirtIOGPU *g,
> > + struct virtio_gpu_ctrl_command *cmd)
> > +{
> > + struct rutabaga_fence fence = { 0 };
> > + int32_t result;
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + VIRTIO_GPU_FILL_CMD(cmd->cmd_hdr);
> > +
> > + switch (cmd->cmd_hdr.type) {
> > + case VIRTIO_GPU_CMD_CTX_CREATE:
> > + rutabaga_cmd_context_create(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_CTX_DESTROY:
> > + rutabaga_cmd_context_destroy(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_RESOURCE_CREATE_2D:
> > + rutabaga_cmd_create_resource_2d(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_RESOURCE_CREATE_3D:
> > + rutabaga_cmd_create_resource_3d(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_SUBMIT_3D:
> > + rutabaga_cmd_submit_3d(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D:
> > + rutabaga_cmd_transfer_to_host_2d(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D:
> > + rutabaga_cmd_transfer_to_host_3d(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D:
> > + rutabaga_cmd_transfer_from_host_3d(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING:
> > + rutabaga_cmd_attach_backing(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING:
> > + rutabaga_cmd_detach_backing(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_SET_SCANOUT:
> > + rutabaga_cmd_set_scanout(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_RESOURCE_FLUSH:
> > + rutabaga_cmd_resource_flush(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_RESOURCE_UNREF:
> > + rutabaga_cmd_resource_unref(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE:
> > + rutabaga_cmd_ctx_attach_resource(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE:
> > + rutabaga_cmd_ctx_detach_resource(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_GET_CAPSET_INFO:
> > + rutabaga_cmd_get_capset_info(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_GET_CAPSET:
> > + rutabaga_cmd_get_capset(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_GET_DISPLAY_INFO:
> > + virtio_gpu_get_display_info(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_GET_EDID:
> > + virtio_gpu_get_edid(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB:
> > + rutabaga_cmd_resource_create_blob(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB:
> > + rutabaga_cmd_resource_map_blob(g, cmd);
> > + break;
> > + case VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB:
> > + rutabaga_cmd_resource_unmap_blob(g, cmd);
> > + break;
> > + default:
> > + cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
> > + break;
> > + }
> > +
> > + if (cmd->finished) {
> > + return;
> > + }
> > + if (cmd->error) {
> > + error_report("%s: ctrl 0x%x, error 0x%x", __func__,
> > + cmd->cmd_hdr.type, cmd->error);
> > + virtio_gpu_ctrl_response_nodata(g, cmd, cmd->error);
> > + return;
> > + }
> > + if (!(cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE)) {
> > + virtio_gpu_ctrl_response_nodata(g, cmd,
> VIRTIO_GPU_RESP_OK_NODATA);
> > + return;
> > + }
> > +
> > + fence.flags = cmd->cmd_hdr.flags;
> > + fence.ctx_id = cmd->cmd_hdr.ctx_id;
> > + fence.fence_id = cmd->cmd_hdr.fence_id;
> > + fence.ring_idx = cmd->cmd_hdr.ring_idx;
> > +
> > + trace_virtio_gpu_fence_ctrl(cmd->cmd_hdr.fence_id,
> cmd->cmd_hdr.type);
> > +
> > + result = rutabaga_create_fence(vr->rutabaga, &fence);
> > + CHECK(!result, cmd);
> > +}
> > +
> > +static void
> > +virtio_gpu_rutabaga_aio_cb(void *opaque)
> > +{
> > + struct rutabaga_aio_data *data = opaque;
> > + VirtIOGPU *g = VIRTIO_GPU(data->vr);
> > + struct rutabaga_fence fence_data = data->fence;
> > + struct virtio_gpu_ctrl_command *cmd, *tmp;
> > +
> > + uint32_t signaled_ctx_specific = fence_data.flags &
> > + RUTABAGA_FLAG_INFO_RING_IDX;
> > +
> > + QTAILQ_FOREACH_SAFE(cmd, &g->fenceq, next, tmp) {
> > + /*
> > + * Due to context specific timelines.
> > + */
> > + uint32_t target_ctx_specific = cmd->cmd_hdr.flags &
> > + RUTABAGA_FLAG_INFO_RING_IDX;
> > +
> > + if (signaled_ctx_specific != target_ctx_specific) {
> > + continue;
> > + }
> > +
> > + if (signaled_ctx_specific &&
> > + (cmd->cmd_hdr.ring_idx != fence_data.ring_idx)) {
> > + continue;
> > + }
> > +
> > + if (cmd->cmd_hdr.fence_id > fence_data.fence_id) {
> > + continue;
> > + }
> > +
> > + trace_virtio_gpu_fence_resp(cmd->cmd_hdr.fence_id);
> > + virtio_gpu_ctrl_response_nodata(g, cmd,
> VIRTIO_GPU_RESP_OK_NODATA);
> > + QTAILQ_REMOVE(&g->fenceq, cmd, next);
> > + g_free(cmd);
> > + }
> > +
> > + g_free(data);
> > +}
> > +
> > +static void
> > +virtio_gpu_rutabaga_fence_cb(uint64_t user_data,
> > + const struct rutabaga_fence *fence) {
>
> There are a few style issues that are easy to miss, like here (opening
> brace for functions on empty line)
>
> I am not sure it's worth a resend
>
I fixed the style nits and pushed a new branch rather than resending:
https://gitlab.com/gurchetansingh/qemu/-/commits/qemu-gfxstream-v18
Should be easy to pull from that branch.
> > + struct rutabaga_aio_data *data;
> > + VirtIOGPU *g = (VirtIOGPU *)user_data;
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + /*
> > + * gfxstream and both cross-domain (and even newer versions
> virglrenderer:
> > + * see VIRGL_RENDERER_ASYNC_FENCE_CB) like to signal fence
> completion on
> > + * threads ("callback threads") that are different from the thread
> that
> > + * processes the command queue ("main thread").
> > + *
> > + * crosvm and other virtio-gpu 1.1 implementations enable callback
> threads
> > + * via locking. However, on QEMU a deadlock is observed if
> > + * virtio_gpu_ctrl_response_nodata(..) [used in the fence callback]
> is used
> > + * from a thread that is not the main thread.
> > + *
> > + * The reason is QEMU's internal locking is designed to work with
> QEMU
> > + * threads (see rcu_register_thread()) and not generic C/C++/Rust
> threads.
> > + * For now, we can workaround this by scheduling the return of the
> > + * fence descriptors on the main thread.
> > + */
> > +
> > + data = g_new0(struct rutabaga_aio_data, 1);
> > + data->vr = vr;
> > + data->fence = *fence;
> > + aio_bh_schedule_oneshot(qemu_get_aio_context(),
> > + virtio_gpu_rutabaga_aio_cb,
> > + data);
> > +}
> > +
> > +static void
> > +virtio_gpu_rutabaga_debug_cb(uint64_t user_data,
> > + const struct rutabaga_debug *debug) {
>
> and here
>
> > +
> > + if (debug->debug_type == RUTABAGA_DEBUG_ERROR) {
>
> maybe a switch is more appropriate?
>
> > + error_report("%s", debug->message);
> > + } else if (debug->debug_type == RUTABAGA_DEBUG_WARN) {
> > + warn_report("%s", debug->message);
> > + } else if (debug->debug_type == RUTABAGA_DEBUG_INFO) {
> > + info_report("%s", debug->message);
> > + }
> > +}
> > +
> > +static bool virtio_gpu_rutabaga_init(VirtIOGPU *g, Error **errp)
> > +{
> > + int result;
> > + struct rutabaga_builder builder = { 0 };
> > + struct rutabaga_channel channel = { 0 };
> > + struct rutabaga_channels channels = { 0 };
> > +
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > + vr->rutabaga = NULL;
> > +
> > + builder.wsi = RUTABAGA_WSI_SURFACELESS;
> > + /*
> > + * Currently, if WSI is specified, the only valid strings are
> "surfaceless"
> > + * or "headless". Surfaceless doesn't create a native window
> surface, but
> > + * does copy from the render target to the Pixman buffer if a
> virtio-gpu
> > + * 2D hypercall is issued. Surfacless is the default.
> > + *
> > + * Headless is like surfaceless, but doesn't copy to the Pixman
> buffer. The
> > + * use case is automated testing environments where there is no
> need to view
> > + * results.
> > + *
> > + * In the future, more performant virtio-gpu 2D UI integration may
> be added.
> > + */
> > + if (vr->wsi) {
> > + if (g_str_equal(vr->wsi, "surfaceless")) {
> > + vr->headless = false;
> > + } else if (g_str_equal(vr->wsi, "headless")) {
> > + vr->headless = true;
> > + } else {
> > + error_setg(errp, "invalid wsi option selected");
> > + return false;
> > + }
> > + }
> > +
> > + builder.fence_cb = virtio_gpu_rutabaga_fence_cb;
> > + builder.debug_cb = virtio_gpu_rutabaga_debug_cb;
> > + builder.capset_mask = vr->capset_mask;
> > + builder.user_data = (uint64_t)g;
> > +
> > + /*
> > + * If the user doesn't specify the wayland socket path, we try to
> infer
> > + * the socket via a process similar to the one used by libwayland.
> > + * libwayland does the following:
> > + *
> > + * 1) If $WAYLAND_DISPLAY is set, attempt to connect to
> > + * $XDG_RUNTIME_DIR/$WAYLAND_DISPLAY
> > + * 2) Otherwise, attempt to connect to $XDG_RUNTIME_DIR/wayland-0
> > + * 3) Otherwise, don't pass a wayland socket to rutabaga. If a guest
> > + * wayland proxy is launched, it will fail to work.
> > + */
> > + channel.channel_type = RUTABAGA_CHANNEL_TYPE_WAYLAND;
> > + g_autofree gchar *path = NULL;
> > + if (!vr->wayland_socket_path) {
> > + const gchar *runtime_dir = g_get_user_runtime_dir();
> > + const gchar *display = g_getenv("WAYLAND_DISPLAY");
> > + if (!display) {
> > + display = "wayland-0";
> > + }
> > +
> > + if (runtime_dir) {
> > + path = g_build_filename(runtime_dir, display, NULL);
> > + channel.channel_name = path;
> > + }
> > + } else {
> > + channel.channel_name = vr->wayland_socket_path;
> > + }
> > +
> > + if ((builder.capset_mask & (1 << RUTABAGA_CAPSET_CROSS_DOMAIN))) {
> > + if (channel.channel_name) {
> > + channels.channels = &channel;
> > + channels.num_channels = 1;
> > + builder.channels = &channels;
> > + }
> > + }
> > +
> > + result = rutabaga_init(&builder, &vr->rutabaga);
> > + if (result) {
> > + error_setg_errno(errp, -result, "Failed to init rutabaga");
> > + return false;
> > + }
> > +
> > + return true;
> > +}
> > +
> > +static int virtio_gpu_rutabaga_get_num_capsets(VirtIOGPU *g)
> > +{
> > + int result;
> > + uint32_t num_capsets;
> > + VirtIOGPURutabaga *vr = VIRTIO_GPU_RUTABAGA(g);
> > +
> > + result = rutabaga_get_num_capsets(vr->rutabaga, &num_capsets);
> > + if (result) {
> > + error_report("Failed to get capsets");
> > + return 0;
> > + }
> > + vr->num_capsets = num_capsets;
> > + return num_capsets;
> > +}
> > +
> > +static void virtio_gpu_rutabaga_handle_ctrl(VirtIODevice *vdev,
> VirtQueue *vq)
> > +{
> > + VirtIOGPU *g = VIRTIO_GPU(vdev);
> > + struct virtio_gpu_ctrl_command *cmd;
> > +
> > + if (!virtio_queue_ready(vq)) {
> > + return;
> > + }
> > +
> > + cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command));
> > + while (cmd) {
> > + cmd->vq = vq;
> > + cmd->error = 0;
> > + cmd->finished = false;
> > + QTAILQ_INSERT_TAIL(&g->cmdq, cmd, next);
> > + cmd = virtqueue_pop(vq, sizeof(struct virtio_gpu_ctrl_command));
> > + }
> > +
> > + virtio_gpu_process_cmdq(g);
> > +}
> > +
> > +static void virtio_gpu_rutabaga_realize(DeviceState *qdev, Error **errp)
> > +{
> > + int num_capsets;
> > + VirtIOGPUBase *bdev = VIRTIO_GPU_BASE(qdev);
> > + VirtIOGPU *gpudev = VIRTIO_GPU(qdev);
> > +
> > +#if HOST_BIG_ENDIAN
> > + error_setg(errp, "rutabaga is not supported on bigendian
> platforms");
> > + return;
> > +#endif
> > +
> > + if (!virtio_gpu_rutabaga_init(gpudev, errp)) {
> > + return;
> > + }
> > +
> > + num_capsets = virtio_gpu_rutabaga_get_num_capsets(gpudev);
> > + if (!num_capsets) {
> > + return;
> > + }
> > +
> > + bdev->conf.flags |= (1 << VIRTIO_GPU_FLAG_RUTABAGA_ENABLED);
> > + bdev->conf.flags |= (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED);
> > + bdev->conf.flags |= (1 << VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED);
> > +
> > + bdev->virtio_config.num_capsets = num_capsets;
> > + virtio_gpu_device_realize(qdev, errp);
> > +}
> > +
> > +static Property virtio_gpu_rutabaga_properties[] = {
> > + DEFINE_PROP_BIT64("gfxstream-vulkan", VirtIOGPURutabaga,
> capset_mask,
> > + RUTABAGA_CAPSET_GFXSTREAM_VULKAN, false),
> > + DEFINE_PROP_BIT64("cross-domain", VirtIOGPURutabaga, capset_mask,
> > + RUTABAGA_CAPSET_CROSS_DOMAIN, false),
> > + DEFINE_PROP_BIT64("x-gfxstream-gles", VirtIOGPURutabaga,
> capset_mask,
> > + RUTABAGA_CAPSET_GFXSTREAM_GLES, false),
> > + DEFINE_PROP_BIT64("x-gfxstream-composer", VirtIOGPURutabaga,
> capset_mask,
> > + RUTABAGA_CAPSET_GFXSTREAM_COMPOSER, false),
> > + DEFINE_PROP_STRING("wayland-socket-path", VirtIOGPURutabaga,
> > + wayland_socket_path),
> > + DEFINE_PROP_STRING("wsi", VirtIOGPURutabaga, wsi),
> > + DEFINE_PROP_END_OF_LIST(),
> > +};
> > +
> > +static void virtio_gpu_rutabaga_class_init(ObjectClass *klass, void
> *data)
> > +{
> > + DeviceClass *dc = DEVICE_CLASS(klass);
> > + VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
> > + VirtIOGPUBaseClass *vbc = VIRTIO_GPU_BASE_CLASS(klass);
> > + VirtIOGPUClass *vgc = VIRTIO_GPU_CLASS(klass);
> > +
> > + vbc->gl_flushed = virtio_gpu_rutabaga_gl_flushed;
> > + vgc->handle_ctrl = virtio_gpu_rutabaga_handle_ctrl;
> > + vgc->process_cmd = virtio_gpu_rutabaga_process_cmd;
> > + vgc->update_cursor_data = virtio_gpu_rutabaga_update_cursor;
> > +
> > + vdc->realize = virtio_gpu_rutabaga_realize;
> > + device_class_set_props(dc, virtio_gpu_rutabaga_properties);
> > +}
> > +
> > +static const TypeInfo virtio_gpu_rutabaga_info[] = {
> > + {
> > + .name = TYPE_VIRTIO_GPU_RUTABAGA,
> > + .parent = TYPE_VIRTIO_GPU,
> > + .instance_size = sizeof(VirtIOGPURutabaga),
> > + .class_init = virtio_gpu_rutabaga_class_init,
> > + },
> > +};
> > +
> > +DEFINE_TYPES(virtio_gpu_rutabaga_info)
> > +
> > +module_obj(TYPE_VIRTIO_GPU_RUTABAGA);
> > +module_kconfig(VIRTIO_GPU);
> > +module_dep("hw-display-virtio-gpu");
> > diff --git a/hw/display/virtio-vga-rutabaga.c
> b/hw/display/virtio-vga-rutabaga.c
> > new file mode 100644
> > index 0000000000..a7bef6da24
> > --- /dev/null
> > +++ b/hw/display/virtio-vga-rutabaga.c
> > @@ -0,0 +1,50 @@
> > +/* SPDX-License-Identifier: GPL-2.0-or-later */
> > +
> > +#include "qemu/osdep.h"
> > +#include "hw/pci/pci.h"
> > +#include "hw/qdev-properties.h"
> > +#include "hw/virtio/virtio-gpu.h"
> > +#include "hw/display/vga.h"
> > +#include "qapi/error.h"
> > +#include "qemu/module.h"
> > +#include "virtio-vga.h"
> > +#include "qom/object.h"
> > +
> > +#define TYPE_VIRTIO_VGA_RUTABAGA "virtio-vga-rutabaga"
> > +
> > +OBJECT_DECLARE_SIMPLE_TYPE(VirtIOVGARutabaga, VIRTIO_VGA_RUTABAGA)
> > +
> > +struct VirtIOVGARutabaga {
> > + VirtIOVGABase parent_obj;
> > +
> > + VirtIOGPURutabaga vdev;
> > +};
> > +
> > +static void virtio_vga_rutabaga_inst_initfn(Object *obj)
> > +{
> > + VirtIOVGARutabaga *dev = VIRTIO_VGA_RUTABAGA(obj);
> > +
> > + virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
> > + TYPE_VIRTIO_GPU_RUTABAGA);
> > + VIRTIO_VGA_BASE(dev)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
> > +}
> > +
> > +static VirtioPCIDeviceTypeInfo virtio_vga_rutabaga_info = {
> > + .generic_name = TYPE_VIRTIO_VGA_RUTABAGA,
> > + .parent = TYPE_VIRTIO_VGA_BASE,
> > + .instance_size = sizeof(VirtIOVGARutabaga),
> > + .instance_init = virtio_vga_rutabaga_inst_initfn,
> > +};
> > +module_obj(TYPE_VIRTIO_VGA_RUTABAGA);
> > +module_kconfig(VIRTIO_VGA);
> > +
> > +static void virtio_vga_register_types(void)
> > +{
> > + if (have_vga) {
> > + virtio_pci_types_register(&virtio_vga_rutabaga_info);
> > + }
> > +}
> > +
> > +type_init(virtio_vga_register_types)
> > +
> > +module_dep("hw-display-virtio-vga");
> > --
> > 2.42.0.609.gbb76f46606-goog
> >
>
>
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^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH v17 0/9] gfxstream + rutabaga_gfx
2023-10-09 7:15 ` [PATCH v17 0/9] gfxstream + rutabaga_gfx Marc-André Lureau
@ 2023-10-17 1:26 ` Gurchetan Singh
2023-10-17 5:15 ` Marc-André Lureau
0 siblings, 1 reply; 17+ messages in thread
From: Gurchetan Singh @ 2023-10-17 1:26 UTC (permalink / raw)
To: Marc-André Lureau
Cc: Gerd Hoffmann, qemu-devel, akihiko.odaki, ray.huang, alex.bennee,
shentey, hi, ernunes, manos.pitsidianakis, mark.cave-ayland,
thuth
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On Mon, Oct 9, 2023 at 12:15 AM Marc-André Lureau <
marcandre.lureau@redhat.com> wrote:
> Hi
>
> On Fri, Oct 6, 2023 at 5:08 AM Gurchetan Singh
> <gurchetansingh@chromium.org> wrote:
> >
> > From: Gurchetan Singh <gurchetansingh@google.com>
> >
> > Branch containing changes:
> >
> > https://gitlab.com/gurchetansingh/qemu/-/commits/qemu-gfxstream-v17
> >
> > Changes since v16:
> >
> > - Fixed typo mentioned here:
> >
> > https://lists.gnu.org/archive/html/qemu-devel/2023-10/msg01407.html
> >
> > Antonio Caggiano (2):
> > virtio-gpu: CONTEXT_INIT feature
> > virtio-gpu: blob prep
> >
> > Dr. David Alan Gilbert (1):
> > virtio: Add shared memory capability
> >
> > Gerd Hoffmann (1):
> > virtio-gpu: hostmem
> >
> > Gurchetan Singh (5):
> > gfxstream + rutabaga prep: added need defintions, fields, and options
> > gfxstream + rutabaga: add initial support for gfxstream
> > gfxstream + rutabaga: meson support
> > gfxstream + rutabaga: enable rutabaga
> > docs/system: add basic virtio-gpu documentation
> >
>
> Except for a few misc style issues, the series looks good to me.
>
> Gerd, as the virtio-gpu "odd fixes" maintainer, any chance you take a
> quick look and ack the series? Even better if you send a PR :)
>
Ping. Branch containing latest series with the minor fixes Marc suggested
is here:
https://gitlab.com/gurchetansingh/qemu/-/commits/qemu-gfxstream-v18
>
> thanks
>
>
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^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH v17 0/9] gfxstream + rutabaga_gfx
2023-10-17 1:26 ` Gurchetan Singh
@ 2023-10-17 5:15 ` Marc-André Lureau
0 siblings, 0 replies; 17+ messages in thread
From: Marc-André Lureau @ 2023-10-17 5:15 UTC (permalink / raw)
To: Gurchetan Singh
Cc: Gerd Hoffmann, qemu-devel, akihiko.odaki, ray.huang, alex.bennee,
shentey, hi, ernunes, manos.pitsidianakis, mark.cave-ayland,
thuth
Hi Gurchetan
On Tue, Oct 17, 2023 at 5:27 AM Gurchetan Singh
<gurchetansingh@chromium.org> wrote:
>
>
>
> On Mon, Oct 9, 2023 at 12:15 AM Marc-André Lureau <marcandre.lureau@redhat.com> wrote:
>>
>> Hi
>>
>> On Fri, Oct 6, 2023 at 5:08 AM Gurchetan Singh
>> <gurchetansingh@chromium.org> wrote:
>> >
>> > From: Gurchetan Singh <gurchetansingh@google.com>
>> >
>> > Branch containing changes:
>> >
>> > https://gitlab.com/gurchetansingh/qemu/-/commits/qemu-gfxstream-v17
>> >
>> > Changes since v16:
>> >
>> > - Fixed typo mentioned here:
>> >
>> > https://lists.gnu.org/archive/html/qemu-devel/2023-10/msg01407.html
>> >
>> > Antonio Caggiano (2):
>> > virtio-gpu: CONTEXT_INIT feature
>> > virtio-gpu: blob prep
>> >
>> > Dr. David Alan Gilbert (1):
>> > virtio: Add shared memory capability
>> >
>> > Gerd Hoffmann (1):
>> > virtio-gpu: hostmem
>> >
>> > Gurchetan Singh (5):
>> > gfxstream + rutabaga prep: added need defintions, fields, and options
>> > gfxstream + rutabaga: add initial support for gfxstream
>> > gfxstream + rutabaga: meson support
>> > gfxstream + rutabaga: enable rutabaga
>> > docs/system: add basic virtio-gpu documentation
>> >
>>
>> Except for a few misc style issues, the series looks good to me.
>>
>> Gerd, as the virtio-gpu "odd fixes" maintainer, any chance you take a
>> quick look and ack the series? Even better if you send a PR :)
>
>
> Ping. Branch containing latest series with the minor fixes Marc suggested is here:
>
> https://gitlab.com/gurchetansingh/qemu/-/commits/qemu-gfxstream-v18
>
I sent a PR yesterday:
https://patchew.org/QEMU/20231016135404.899743-1-marcandre.lureau@redhat.com/
--
Marc-André Lureau
^ permalink raw reply [flat|nested] 17+ messages in thread
* [PATCH] virtio-gpu-rutabaga: Add empty interface to fix arm64 crash
2023-10-06 1:08 ` [PATCH v17 6/9] gfxstream + rutabaga: add initial support for gfxstream Gurchetan Singh
2023-10-09 7:11 ` Marc-André Lureau
@ 2023-10-31 1:25 ` Cong Liu
2023-10-31 6:10 ` Marc-André Lureau
1 sibling, 1 reply; 17+ messages in thread
From: Cong Liu @ 2023-10-31 1:25 UTC (permalink / raw)
To: gurchetansingh, Gerd Hoffmann, Michael S. Tsirkin
Cc: akihiko.odaki, alex.bennee, ernunes, hi, manos.pitsidianakis,
marcandre.lureau, mark.cave-ayland, qemu-devel, ray.huang,
shentey, thuth, Cong Liu
Add an empty element to the interfaces array, which is consistent with
the behavior of other devices in qemu and fixes the crash on arm64.
0 0x0000fffff5c18550 in () at /usr/lib64/libc.so.6
1 0x0000fffff6c9cd6c in g_strdup () at /usr/lib64/libglib-2.0.so.0
2 0x0000aaaaab4945d8 in g_strdup_inline (str=<optimized out>) at /usr/include/glib-2.0/glib/gstrfuncs.h:321
3 type_new (info=info@entry=0xaaaaabc1b2c8 <virtio_gpu_rutabaga_pci_info>) at ../qom/object.c:133
4 0x0000aaaaab494f14 in type_register_internal (info=0xaaaaabc1b2c8 <virtio_gpu_rutabaga_pci_info>) at ../qom/object.c:143
5 type_register (info=0xaaaaabc1b2c8 <virtio_gpu_rutabaga_pci_info>) at ../qom/object.c:152
6 type_register_static (info=0xaaaaabc1b2c8 <virtio_gpu_rutabaga_pci_info>) at ../qom/object.c:157
7 type_register_static_array (infos=<optimized out>, nr_infos=<optimized out>) at ../qom/object.c:165
8 0x0000aaaaab6147e8 in module_call_init (type=type@entry=MODULE_INIT_QOM) at ../util/module.c:109
9 0x0000aaaaab10a0ec in qemu_init_subsystems () at ../system/runstate.c:817
10 0x0000aaaaab10d334 in qemu_init (argc=13, argv=0xfffffffff198) at ../system/vl.c:2760
11 0x0000aaaaaae4da6c in main (argc=<optimized out>, argv=<optimized out>) at ../system/main.c:47
Signed-off-by: Cong Liu <liucong2@kylinos.cn>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
---
hw/display/virtio-gpu-pci-rutabaga.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/display/virtio-gpu-pci-rutabaga.c b/hw/display/virtio-gpu-pci-rutabaga.c
index c96729e19834..abbb898c65dc 100644
--- a/hw/display/virtio-gpu-pci-rutabaga.c
+++ b/hw/display/virtio-gpu-pci-rutabaga.c
@@ -36,6 +36,7 @@ static const TypeInfo virtio_gpu_rutabaga_pci_info[] = {
.instance_init = virtio_gpu_rutabaga_initfn,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
+ { },
}
},
};
--
2.34.1
^ permalink raw reply related [flat|nested] 17+ messages in thread
* Re: [PATCH] virtio-gpu-rutabaga: Add empty interface to fix arm64 crash
2023-10-31 1:25 ` [PATCH] virtio-gpu-rutabaga: Add empty interface to fix arm64 crash Cong Liu
@ 2023-10-31 6:10 ` Marc-André Lureau
0 siblings, 0 replies; 17+ messages in thread
From: Marc-André Lureau @ 2023-10-31 6:10 UTC (permalink / raw)
To: Cong Liu
Cc: gurchetansingh, Gerd Hoffmann, Michael S. Tsirkin, akihiko.odaki,
alex.bennee, ernunes, hi, manos.pitsidianakis, mark.cave-ayland,
qemu-devel, ray.huang, shentey, thuth
On Tue, Oct 31, 2023 at 5:31 AM Cong Liu <liucong2@kylinos.cn> wrote:
>
> Add an empty element to the interfaces array, which is consistent with
> the behavior of other devices in qemu and fixes the crash on arm64.
>
> 0 0x0000fffff5c18550 in () at /usr/lib64/libc.so.6
> 1 0x0000fffff6c9cd6c in g_strdup () at /usr/lib64/libglib-2.0.so.0
> 2 0x0000aaaaab4945d8 in g_strdup_inline (str=<optimized out>) at /usr/include/glib-2.0/glib/gstrfuncs.h:321
> 3 type_new (info=info@entry=0xaaaaabc1b2c8 <virtio_gpu_rutabaga_pci_info>) at ../qom/object.c:133
> 4 0x0000aaaaab494f14 in type_register_internal (info=0xaaaaabc1b2c8 <virtio_gpu_rutabaga_pci_info>) at ../qom/object.c:143
> 5 type_register (info=0xaaaaabc1b2c8 <virtio_gpu_rutabaga_pci_info>) at ../qom/object.c:152
> 6 type_register_static (info=0xaaaaabc1b2c8 <virtio_gpu_rutabaga_pci_info>) at ../qom/object.c:157
> 7 type_register_static_array (infos=<optimized out>, nr_infos=<optimized out>) at ../qom/object.c:165
> 8 0x0000aaaaab6147e8 in module_call_init (type=type@entry=MODULE_INIT_QOM) at ../util/module.c:109
> 9 0x0000aaaaab10a0ec in qemu_init_subsystems () at ../system/runstate.c:817
> 10 0x0000aaaaab10d334 in qemu_init (argc=13, argv=0xfffffffff198) at ../system/vl.c:2760
> 11 0x0000aaaaaae4da6c in main (argc=<optimized out>, argv=<optimized out>) at ../system/main.c:47
>
> Signed-off-by: Cong Liu <liucong2@kylinos.cn>
> Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> ---
> hw/display/virtio-gpu-pci-rutabaga.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/hw/display/virtio-gpu-pci-rutabaga.c b/hw/display/virtio-gpu-pci-rutabaga.c
> index c96729e19834..abbb898c65dc 100644
> --- a/hw/display/virtio-gpu-pci-rutabaga.c
> +++ b/hw/display/virtio-gpu-pci-rutabaga.c
> @@ -36,6 +36,7 @@ static const TypeInfo virtio_gpu_rutabaga_pci_info[] = {
> .instance_init = virtio_gpu_rutabaga_initfn,
> .interfaces = (InterfaceInfo[]) {
> { INTERFACE_CONVENTIONAL_PCI_DEVICE },
> + { },
> }
> },
> };
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 17+ messages in thread
end of thread, other threads:[~2023-10-31 6:11 UTC | newest]
Thread overview: 17+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-10-06 1:08 [PATCH v17 0/9] gfxstream + rutabaga_gfx Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 1/9] virtio: Add shared memory capability Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 2/9] virtio-gpu: CONTEXT_INIT feature Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 3/9] virtio-gpu: hostmem Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 4/9] virtio-gpu: blob prep Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 5/9] gfxstream + rutabaga prep: added need defintions, fields, and options Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 6/9] gfxstream + rutabaga: add initial support for gfxstream Gurchetan Singh
2023-10-09 7:11 ` Marc-André Lureau
2023-10-10 0:06 ` Gurchetan Singh
2023-10-31 1:25 ` [PATCH] virtio-gpu-rutabaga: Add empty interface to fix arm64 crash Cong Liu
2023-10-31 6:10 ` Marc-André Lureau
2023-10-06 1:08 ` [PATCH v17 7/9] gfxstream + rutabaga: meson support Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 8/9] gfxstream + rutabaga: enable rutabaga Gurchetan Singh
2023-10-06 1:08 ` [PATCH v17 9/9] docs/system: add basic virtio-gpu documentation Gurchetan Singh
2023-10-09 7:15 ` [PATCH v17 0/9] gfxstream + rutabaga_gfx Marc-André Lureau
2023-10-17 1:26 ` Gurchetan Singh
2023-10-17 5:15 ` Marc-André Lureau
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