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virtio-gpu: misc bugfixes.

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Merge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20170103-1' into staging

virtio-gpu: misc bugfixes.

# gpg: Signature made Tue 03 Jan 2017 14:48:04 GMT
# gpg:                using RSA key 0x4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/pull-vga-20170103-1:
  virtio-gpu: fix memory leak in resource attach backing
  virtio-gpu-3d: fix memory leak in resource attach backing
  virtio-gpu: call cleanup mapping function in resource destroy
  virtio-gpu: track and limit host memory allocations
  display: virtio-gpu-3d: check virgl capabilities max_size

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-01-05 10:22:47 +00:00
parent dbe2b65566 204f01b309
commit 12597061b3
3 changed files with 33 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
hw/display/virtio-gpu-3d.c
View file

@ -291,8 +291,11 @@ static void virgl_resource_attach_backing(VirtIOGPU *g,
return;
}
virgl_renderer_resource_attach_iov(att_rb.resource_id,
res_iovs, att_rb.nr_entries);
ret = virgl_renderer_resource_attach_iov(att_rb.resource_id,
res_iovs, att_rb.nr_entries);
if (ret != 0)
virtio_gpu_cleanup_mapping_iov(res_iovs, att_rb.nr_entries);
}
static void virgl_resource_detach_backing(VirtIOGPU *g,
@ -371,8 +374,12 @@ static void virgl_cmd_get_capset(VirtIOGPU *g,
virgl_renderer_get_cap_set(gc.capset_id, &max_ver,
&max_size);
resp = g_malloc(sizeof(*resp) + max_size);
if (!max_size) {
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
return;
}
resp = g_malloc(sizeof(*resp) + max_size);
resp->hdr.type = VIRTIO_GPU_RESP_OK_CAPSET;
virgl_renderer_fill_caps(gc.capset_id,
gc.capset_version,

24
hw/display/virtio-gpu.c
View file

@ -28,6 +28,8 @@
static struct virtio_gpu_simple_resource*
virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id);
static void virtio_gpu_cleanup_mapping(struct virtio_gpu_simple_resource *res);
#ifdef CONFIG_VIRGL
#include <virglrenderer.h>
#define VIRGL(_g, _virgl, _simple, ...) \
@ -338,10 +340,14 @@ static void virtio_gpu_resource_create_2d(VirtIOGPU *g,
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
return;
}
res->image = pixman_image_create_bits(pformat,
c2d.width,
c2d.height,
NULL, 0);
res->hostmem = PIXMAN_FORMAT_BPP(pformat) * c2d.width * c2d.height;
if (res->hostmem + g->hostmem < g->conf.max_hostmem) {
res->image = pixman_image_create_bits(pformat,
c2d.width,
c2d.height,
NULL, 0);
}
if (!res->image) {
qemu_log_mask(LOG_GUEST_ERROR,
@ -353,13 +359,16 @@ static void virtio_gpu_resource_create_2d(VirtIOGPU *g,
}
QTAILQ_INSERT_HEAD(&g->reslist, res, next);
g->hostmem += res->hostmem;
}
static void virtio_gpu_resource_destroy(VirtIOGPU *g,
struct virtio_gpu_simple_resource *res)
{
pixman_image_unref(res->image);
virtio_gpu_cleanup_mapping(res);
QTAILQ_REMOVE(&g->reslist, res, next);
g->hostmem -= res->hostmem;
g_free(res);
}
@ -705,6 +714,11 @@ virtio_gpu_resource_attach_backing(VirtIOGPU *g,
return;
}
if (res->iov) {
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
return;
}
ret = virtio_gpu_create_mapping_iov(&ab, cmd, &res->addrs, &res->iov);
if (ret != 0) {
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
@ -1241,6 +1255,8 @@ static const VMStateDescription vmstate_virtio_gpu = {
static Property virtio_gpu_properties[] = {
DEFINE_PROP_UINT32("max_outputs", VirtIOGPU, conf.max_outputs, 1),
DEFINE_PROP_SIZE("max_hostmem", VirtIOGPU, conf.max_hostmem,
256 * 1024 * 1024),
#ifdef CONFIG_VIRGL
DEFINE_PROP_BIT("virgl", VirtIOGPU, conf.flags,
VIRTIO_GPU_FLAG_VIRGL_ENABLED, true),

3
include/hw/virtio/virtio-gpu.h
View file

@ -38,6 +38,7 @@ struct virtio_gpu_simple_resource {
unsigned int iov_cnt;
uint32_t scanout_bitmask;
pixman_image_t *image;
uint64_t hostmem;
QTAILQ_ENTRY(virtio_gpu_simple_resource) next;
};
@ -68,6 +69,7 @@ enum virtio_gpu_conf_flags {
(_cfg.flags & (1 << VIRTIO_GPU_FLAG_STATS_ENABLED))
struct virtio_gpu_conf {
uint64_t max_hostmem;
uint32_t max_outputs;
uint32_t flags;
};
@ -103,6 +105,7 @@ typedef struct VirtIOGPU {
struct virtio_gpu_requested_state req_state[VIRTIO_GPU_MAX_SCANOUTS];
struct virtio_gpu_conf conf;
uint64_t hostmem;
int enabled_output_bitmask;
struct virtio_gpu_config virtio_config;