1460 lines
46 KiB
C
1460 lines
46 KiB
C
/*
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* Virtio GPU Device
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*
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* Copyright Red Hat, Inc. 2013-2014
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*
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* Authors:
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* Dave Airlie <airlied@redhat.com>
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* Gerd Hoffmann <kraxel@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qemu/units.h"
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#include "qemu/iov.h"
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#include "ui/console.h"
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#include "trace.h"
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#include "sysemu/dma.h"
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#include "sysemu/sysemu.h"
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#include "hw/virtio/virtio.h"
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#include "migration/qemu-file-types.h"
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#include "hw/virtio/virtio-gpu.h"
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#include "hw/virtio/virtio-gpu-bswap.h"
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#include "hw/virtio/virtio-gpu-pixman.h"
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#include "hw/virtio/virtio-bus.h"
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#include "hw/display/edid.h"
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#include "hw/qdev-properties.h"
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#include "qemu/log.h"
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#include "qemu/module.h"
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#include "qapi/error.h"
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#include "qemu/error-report.h"
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#define VIRTIO_GPU_VM_VERSION 1
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static struct virtio_gpu_simple_resource*
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virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id);
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static struct virtio_gpu_simple_resource *
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virtio_gpu_find_check_resource(VirtIOGPU *g, uint32_t resource_id,
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bool require_backing,
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const char *caller, uint32_t *error);
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static void virtio_gpu_cleanup_mapping(VirtIOGPU *g,
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struct virtio_gpu_simple_resource *res);
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void virtio_gpu_update_cursor_data(VirtIOGPU *g,
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struct virtio_gpu_scanout *s,
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uint32_t resource_id)
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{
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struct virtio_gpu_simple_resource *res;
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uint32_t pixels;
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void *data;
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res = virtio_gpu_find_check_resource(g, resource_id, false,
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__func__, NULL);
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if (!res) {
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return;
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}
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if (res->blob_size) {
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if (res->blob_size < (s->current_cursor->width *
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s->current_cursor->height * 4)) {
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return;
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}
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data = res->blob;
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} else {
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if (pixman_image_get_width(res->image) != s->current_cursor->width ||
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pixman_image_get_height(res->image) != s->current_cursor->height) {
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return;
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}
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data = pixman_image_get_data(res->image);
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}
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pixels = s->current_cursor->width * s->current_cursor->height;
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memcpy(s->current_cursor->data, data,
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pixels * sizeof(uint32_t));
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}
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static void update_cursor(VirtIOGPU *g, struct virtio_gpu_update_cursor *cursor)
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{
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struct virtio_gpu_scanout *s;
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VirtIOGPUClass *vgc = VIRTIO_GPU_GET_CLASS(g);
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bool move = cursor->hdr.type == VIRTIO_GPU_CMD_MOVE_CURSOR;
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if (cursor->pos.scanout_id >= g->parent_obj.conf.max_outputs) {
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return;
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}
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s = &g->parent_obj.scanout[cursor->pos.scanout_id];
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trace_virtio_gpu_update_cursor(cursor->pos.scanout_id,
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cursor->pos.x,
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cursor->pos.y,
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move ? "move" : "update",
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cursor->resource_id);
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if (!move) {
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if (!s->current_cursor) {
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s->current_cursor = cursor_alloc(64, 64);
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}
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s->current_cursor->hot_x = cursor->hot_x;
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s->current_cursor->hot_y = cursor->hot_y;
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if (cursor->resource_id > 0) {
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vgc->update_cursor_data(g, s, cursor->resource_id);
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}
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dpy_cursor_define(s->con, s->current_cursor);
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s->cursor = *cursor;
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} else {
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s->cursor.pos.x = cursor->pos.x;
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s->cursor.pos.y = cursor->pos.y;
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}
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dpy_mouse_set(s->con, cursor->pos.x, cursor->pos.y,
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cursor->resource_id ? 1 : 0);
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}
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static struct virtio_gpu_simple_resource *
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virtio_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id)
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{
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struct virtio_gpu_simple_resource *res;
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QTAILQ_FOREACH(res, &g->reslist, next) {
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if (res->resource_id == resource_id) {
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return res;
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}
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}
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return NULL;
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}
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static struct virtio_gpu_simple_resource *
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virtio_gpu_find_check_resource(VirtIOGPU *g, uint32_t resource_id,
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bool require_backing,
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const char *caller, uint32_t *error)
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{
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struct virtio_gpu_simple_resource *res;
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res = virtio_gpu_find_resource(g, resource_id);
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if (!res) {
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qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid resource specified %d\n",
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caller, resource_id);
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if (error) {
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*error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
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}
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return NULL;
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}
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if (require_backing) {
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if (!res->iov || (!res->image && !res->blob)) {
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qemu_log_mask(LOG_GUEST_ERROR, "%s: no backing storage %d\n",
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caller, resource_id);
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if (error) {
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*error = VIRTIO_GPU_RESP_ERR_UNSPEC;
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}
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return NULL;
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}
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}
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return res;
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}
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void virtio_gpu_ctrl_response(VirtIOGPU *g,
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struct virtio_gpu_ctrl_command *cmd,
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struct virtio_gpu_ctrl_hdr *resp,
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size_t resp_len)
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{
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size_t s;
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if (cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE) {
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resp->flags |= VIRTIO_GPU_FLAG_FENCE;
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resp->fence_id = cmd->cmd_hdr.fence_id;
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resp->ctx_id = cmd->cmd_hdr.ctx_id;
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}
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virtio_gpu_ctrl_hdr_bswap(resp);
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s = iov_from_buf(cmd->elem.in_sg, cmd->elem.in_num, 0, resp, resp_len);
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if (s != resp_len) {
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qemu_log_mask(LOG_GUEST_ERROR,
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"%s: response size incorrect %zu vs %zu\n",
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__func__, s, resp_len);
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}
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virtqueue_push(cmd->vq, &cmd->elem, s);
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virtio_notify(VIRTIO_DEVICE(g), cmd->vq);
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cmd->finished = true;
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}
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void virtio_gpu_ctrl_response_nodata(VirtIOGPU *g,
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struct virtio_gpu_ctrl_command *cmd,
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enum virtio_gpu_ctrl_type type)
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{
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struct virtio_gpu_ctrl_hdr resp;
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memset(&resp, 0, sizeof(resp));
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resp.type = type;
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virtio_gpu_ctrl_response(g, cmd, &resp, sizeof(resp));
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}
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void virtio_gpu_get_display_info(VirtIOGPU *g,
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struct virtio_gpu_ctrl_command *cmd)
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{
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struct virtio_gpu_resp_display_info display_info;
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trace_virtio_gpu_cmd_get_display_info();
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memset(&display_info, 0, sizeof(display_info));
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display_info.hdr.type = VIRTIO_GPU_RESP_OK_DISPLAY_INFO;
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virtio_gpu_base_fill_display_info(VIRTIO_GPU_BASE(g), &display_info);
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virtio_gpu_ctrl_response(g, cmd, &display_info.hdr,
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sizeof(display_info));
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}
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static void
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virtio_gpu_generate_edid(VirtIOGPU *g, int scanout,
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struct virtio_gpu_resp_edid *edid)
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{
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VirtIOGPUBase *b = VIRTIO_GPU_BASE(g);
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qemu_edid_info info = {
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.width_mm = b->req_state[scanout].width_mm,
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.height_mm = b->req_state[scanout].height_mm,
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.prefx = b->req_state[scanout].width,
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.prefy = b->req_state[scanout].height,
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};
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edid->size = cpu_to_le32(sizeof(edid->edid));
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qemu_edid_generate(edid->edid, sizeof(edid->edid), &info);
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}
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void virtio_gpu_get_edid(VirtIOGPU *g,
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struct virtio_gpu_ctrl_command *cmd)
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{
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struct virtio_gpu_resp_edid edid;
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struct virtio_gpu_cmd_get_edid get_edid;
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VirtIOGPUBase *b = VIRTIO_GPU_BASE(g);
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VIRTIO_GPU_FILL_CMD(get_edid);
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virtio_gpu_bswap_32(&get_edid, sizeof(get_edid));
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if (get_edid.scanout >= b->conf.max_outputs) {
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cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
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return;
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}
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trace_virtio_gpu_cmd_get_edid(get_edid.scanout);
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memset(&edid, 0, sizeof(edid));
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edid.hdr.type = VIRTIO_GPU_RESP_OK_EDID;
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virtio_gpu_generate_edid(g, get_edid.scanout, &edid);
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virtio_gpu_ctrl_response(g, cmd, &edid.hdr, sizeof(edid));
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}
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static uint32_t calc_image_hostmem(pixman_format_code_t pformat,
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uint32_t width, uint32_t height)
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{
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/* Copied from pixman/pixman-bits-image.c, skip integer overflow check.
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* pixman_image_create_bits will fail in case it overflow.
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*/
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int bpp = PIXMAN_FORMAT_BPP(pformat);
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int stride = ((width * bpp + 0x1f) >> 5) * sizeof(uint32_t);
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return height * stride;
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}
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static void virtio_gpu_resource_create_2d(VirtIOGPU *g,
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struct virtio_gpu_ctrl_command *cmd)
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{
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pixman_format_code_t pformat;
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struct virtio_gpu_simple_resource *res;
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struct virtio_gpu_resource_create_2d c2d;
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VIRTIO_GPU_FILL_CMD(c2d);
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virtio_gpu_bswap_32(&c2d, sizeof(c2d));
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trace_virtio_gpu_cmd_res_create_2d(c2d.resource_id, c2d.format,
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c2d.width, c2d.height);
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if (c2d.resource_id == 0) {
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qemu_log_mask(LOG_GUEST_ERROR, "%s: resource id 0 is not allowed\n",
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__func__);
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cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
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return;
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}
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res = virtio_gpu_find_resource(g, c2d.resource_id);
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if (res) {
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qemu_log_mask(LOG_GUEST_ERROR, "%s: resource already exists %d\n",
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__func__, c2d.resource_id);
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cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
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return;
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}
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res = g_new0(struct virtio_gpu_simple_resource, 1);
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res->width = c2d.width;
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res->height = c2d.height;
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res->format = c2d.format;
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res->resource_id = c2d.resource_id;
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pformat = virtio_gpu_get_pixman_format(c2d.format);
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if (!pformat) {
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qemu_log_mask(LOG_GUEST_ERROR,
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"%s: host couldn't handle guest format %d\n",
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__func__, c2d.format);
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g_free(res);
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cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
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return;
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}
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res->hostmem = calc_image_hostmem(pformat, c2d.width, c2d.height);
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if (res->hostmem + g->hostmem < g->conf_max_hostmem) {
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res->image = pixman_image_create_bits(pformat,
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c2d.width,
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c2d.height,
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NULL, 0);
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}
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if (!res->image) {
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qemu_log_mask(LOG_GUEST_ERROR,
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"%s: resource creation failed %d %d %d\n",
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__func__, c2d.resource_id, c2d.width, c2d.height);
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g_free(res);
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cmd->error = VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY;
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return;
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}
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QTAILQ_INSERT_HEAD(&g->reslist, res, next);
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g->hostmem += res->hostmem;
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}
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static void virtio_gpu_resource_create_blob(VirtIOGPU *g,
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struct virtio_gpu_ctrl_command *cmd)
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{
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struct virtio_gpu_simple_resource *res;
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struct virtio_gpu_resource_create_blob cblob;
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int ret;
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VIRTIO_GPU_FILL_CMD(cblob);
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virtio_gpu_create_blob_bswap(&cblob);
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trace_virtio_gpu_cmd_res_create_blob(cblob.resource_id, cblob.size);
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if (cblob.resource_id == 0) {
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qemu_log_mask(LOG_GUEST_ERROR, "%s: resource id 0 is not allowed\n",
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__func__);
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cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
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return;
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}
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if (cblob.blob_mem != VIRTIO_GPU_BLOB_MEM_GUEST &&
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cblob.blob_flags != VIRTIO_GPU_BLOB_FLAG_USE_SHAREABLE) {
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qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid memory type\n",
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__func__);
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cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
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return;
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}
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if (virtio_gpu_find_resource(g, cblob.resource_id)) {
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qemu_log_mask(LOG_GUEST_ERROR, "%s: resource already exists %d\n",
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__func__, cblob.resource_id);
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cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
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return;
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}
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res = g_new0(struct virtio_gpu_simple_resource, 1);
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res->resource_id = cblob.resource_id;
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res->blob_size = cblob.size;
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ret = virtio_gpu_create_mapping_iov(g, cblob.nr_entries, sizeof(cblob),
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cmd, &res->addrs, &res->iov,
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&res->iov_cnt);
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if (ret != 0) {
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cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
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g_free(res);
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return;
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}
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virtio_gpu_init_udmabuf(res);
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QTAILQ_INSERT_HEAD(&g->reslist, res, next);
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}
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static void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id)
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{
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struct virtio_gpu_scanout *scanout = &g->parent_obj.scanout[scanout_id];
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struct virtio_gpu_simple_resource *res;
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if (scanout->resource_id == 0) {
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return;
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}
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res = virtio_gpu_find_resource(g, scanout->resource_id);
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if (res) {
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res->scanout_bitmask &= ~(1 << scanout_id);
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}
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dpy_gfx_replace_surface(scanout->con, NULL);
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scanout->resource_id = 0;
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scanout->ds = NULL;
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scanout->width = 0;
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scanout->height = 0;
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}
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static void virtio_gpu_resource_destroy(VirtIOGPU *g,
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struct virtio_gpu_simple_resource *res)
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{
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int i;
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if (res->scanout_bitmask) {
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for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
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if (res->scanout_bitmask & (1 << i)) {
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virtio_gpu_disable_scanout(g, i);
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}
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}
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}
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qemu_pixman_image_unref(res->image);
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virtio_gpu_cleanup_mapping(g, res);
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QTAILQ_REMOVE(&g->reslist, res, next);
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g->hostmem -= res->hostmem;
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g_free(res);
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}
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static void virtio_gpu_resource_unref(VirtIOGPU *g,
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struct virtio_gpu_ctrl_command *cmd)
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{
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struct virtio_gpu_simple_resource *res;
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struct virtio_gpu_resource_unref unref;
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VIRTIO_GPU_FILL_CMD(unref);
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virtio_gpu_bswap_32(&unref, sizeof(unref));
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trace_virtio_gpu_cmd_res_unref(unref.resource_id);
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res = virtio_gpu_find_resource(g, unref.resource_id);
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if (!res) {
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qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n",
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__func__, unref.resource_id);
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cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
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return;
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}
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virtio_gpu_resource_destroy(g, res);
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}
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static void virtio_gpu_transfer_to_host_2d(VirtIOGPU *g,
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struct virtio_gpu_ctrl_command *cmd)
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{
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struct virtio_gpu_simple_resource *res;
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int h;
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uint32_t src_offset, dst_offset, stride;
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int bpp;
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pixman_format_code_t format;
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struct virtio_gpu_transfer_to_host_2d t2d;
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VIRTIO_GPU_FILL_CMD(t2d);
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virtio_gpu_t2d_bswap(&t2d);
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trace_virtio_gpu_cmd_res_xfer_toh_2d(t2d.resource_id);
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res = virtio_gpu_find_check_resource(g, t2d.resource_id, true,
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__func__, &cmd->error);
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if (!res || res->blob) {
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return;
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}
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if (t2d.r.x > res->width ||
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t2d.r.y > res->height ||
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t2d.r.width > res->width ||
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t2d.r.height > res->height ||
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t2d.r.x + t2d.r.width > res->width ||
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t2d.r.y + t2d.r.height > res->height) {
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qemu_log_mask(LOG_GUEST_ERROR, "%s: transfer bounds outside resource"
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" bounds for resource %d: %d %d %d %d vs %d %d\n",
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__func__, t2d.resource_id, t2d.r.x, t2d.r.y,
|
|
t2d.r.width, t2d.r.height, res->width, res->height);
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
|
|
return;
|
|
}
|
|
|
|
format = pixman_image_get_format(res->image);
|
|
bpp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(format), 8);
|
|
stride = pixman_image_get_stride(res->image);
|
|
|
|
if (t2d.offset || t2d.r.x || t2d.r.y ||
|
|
t2d.r.width != pixman_image_get_width(res->image)) {
|
|
void *img_data = pixman_image_get_data(res->image);
|
|
for (h = 0; h < t2d.r.height; h++) {
|
|
src_offset = t2d.offset + stride * h;
|
|
dst_offset = (t2d.r.y + h) * stride + (t2d.r.x * bpp);
|
|
|
|
iov_to_buf(res->iov, res->iov_cnt, src_offset,
|
|
(uint8_t *)img_data
|
|
+ dst_offset, t2d.r.width * bpp);
|
|
}
|
|
} else {
|
|
iov_to_buf(res->iov, res->iov_cnt, 0,
|
|
pixman_image_get_data(res->image),
|
|
pixman_image_get_stride(res->image)
|
|
* pixman_image_get_height(res->image));
|
|
}
|
|
}
|
|
|
|
static void virtio_gpu_resource_flush(VirtIOGPU *g,
|
|
struct virtio_gpu_ctrl_command *cmd)
|
|
{
|
|
struct virtio_gpu_simple_resource *res;
|
|
struct virtio_gpu_resource_flush rf;
|
|
struct virtio_gpu_scanout *scanout;
|
|
pixman_region16_t flush_region;
|
|
int i;
|
|
|
|
VIRTIO_GPU_FILL_CMD(rf);
|
|
virtio_gpu_bswap_32(&rf, sizeof(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_check_resource(g, rf.resource_id, false,
|
|
__func__, &cmd->error);
|
|
if (!res) {
|
|
return;
|
|
}
|
|
|
|
if (res->blob) {
|
|
for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
|
|
scanout = &g->parent_obj.scanout[i];
|
|
if (scanout->resource_id == res->resource_id &&
|
|
console_has_gl(scanout->con)) {
|
|
dpy_gl_update(scanout->con, 0, 0, scanout->width,
|
|
scanout->height);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!res->blob &&
|
|
(rf.r.x > res->width ||
|
|
rf.r.y > res->height ||
|
|
rf.r.width > res->width ||
|
|
rf.r.height > res->height ||
|
|
rf.r.x + rf.r.width > res->width ||
|
|
rf.r.y + rf.r.height > res->height)) {
|
|
qemu_log_mask(LOG_GUEST_ERROR, "%s: flush bounds outside resource"
|
|
" bounds for resource %d: %d %d %d %d vs %d %d\n",
|
|
__func__, rf.resource_id, rf.r.x, rf.r.y,
|
|
rf.r.width, rf.r.height, res->width, res->height);
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
|
|
return;
|
|
}
|
|
|
|
pixman_region_init_rect(&flush_region,
|
|
rf.r.x, rf.r.y, rf.r.width, rf.r.height);
|
|
for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
|
|
pixman_region16_t region, finalregion;
|
|
pixman_box16_t *extents;
|
|
|
|
if (!(res->scanout_bitmask & (1 << i))) {
|
|
continue;
|
|
}
|
|
scanout = &g->parent_obj.scanout[i];
|
|
|
|
pixman_region_init(&finalregion);
|
|
pixman_region_init_rect(®ion, scanout->x, scanout->y,
|
|
scanout->width, scanout->height);
|
|
|
|
pixman_region_intersect(&finalregion, &flush_region, ®ion);
|
|
pixman_region_translate(&finalregion, -scanout->x, -scanout->y);
|
|
extents = pixman_region_extents(&finalregion);
|
|
/* work out the area we need to update for each console */
|
|
dpy_gfx_update(g->parent_obj.scanout[i].con,
|
|
extents->x1, extents->y1,
|
|
extents->x2 - extents->x1,
|
|
extents->y2 - extents->y1);
|
|
|
|
pixman_region_fini(®ion);
|
|
pixman_region_fini(&finalregion);
|
|
}
|
|
pixman_region_fini(&flush_region);
|
|
}
|
|
|
|
static void virtio_unref_resource(pixman_image_t *image, void *data)
|
|
{
|
|
pixman_image_unref(data);
|
|
}
|
|
|
|
static void virtio_gpu_update_scanout(VirtIOGPU *g,
|
|
uint32_t scanout_id,
|
|
struct virtio_gpu_simple_resource *res,
|
|
struct virtio_gpu_rect *r)
|
|
{
|
|
struct virtio_gpu_simple_resource *ores;
|
|
struct virtio_gpu_scanout *scanout;
|
|
|
|
scanout = &g->parent_obj.scanout[scanout_id];
|
|
ores = virtio_gpu_find_resource(g, scanout->resource_id);
|
|
if (ores) {
|
|
ores->scanout_bitmask &= ~(1 << scanout_id);
|
|
}
|
|
|
|
res->scanout_bitmask |= (1 << scanout_id);
|
|
scanout->resource_id = res->resource_id;
|
|
scanout->x = r->x;
|
|
scanout->y = r->y;
|
|
scanout->width = r->width;
|
|
scanout->height = r->height;
|
|
}
|
|
|
|
static void virtio_gpu_do_set_scanout(VirtIOGPU *g,
|
|
uint32_t scanout_id,
|
|
struct virtio_gpu_framebuffer *fb,
|
|
struct virtio_gpu_simple_resource *res,
|
|
struct virtio_gpu_rect *r,
|
|
uint32_t *error)
|
|
{
|
|
struct virtio_gpu_scanout *scanout;
|
|
uint8_t *data;
|
|
|
|
scanout = &g->parent_obj.scanout[scanout_id];
|
|
|
|
if (r->x > fb->width ||
|
|
r->y > fb->height ||
|
|
r->width < 16 ||
|
|
r->height < 16 ||
|
|
r->width > fb->width ||
|
|
r->height > fb->height ||
|
|
r->x + r->width > fb->width ||
|
|
r->y + r->height > fb->height) {
|
|
qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout %d bounds for"
|
|
" resource %d, rect (%d,%d)+%d,%d, fb %d %d\n",
|
|
__func__, scanout_id, res->resource_id,
|
|
r->x, r->y, r->width, r->height,
|
|
fb->width, fb->height);
|
|
*error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
|
|
return;
|
|
}
|
|
|
|
g->parent_obj.enable = 1;
|
|
|
|
if (res->blob) {
|
|
if (console_has_gl(scanout->con)) {
|
|
if (!virtio_gpu_update_dmabuf(g, scanout_id, res, fb)) {
|
|
virtio_gpu_update_scanout(g, scanout_id, res, r);
|
|
return;
|
|
}
|
|
}
|
|
|
|
data = res->blob;
|
|
} else {
|
|
data = (uint8_t *)pixman_image_get_data(res->image);
|
|
}
|
|
|
|
/* create a surface for this scanout */
|
|
if ((res->blob && !console_has_gl(scanout->con)) ||
|
|
!scanout->ds ||
|
|
surface_data(scanout->ds) != data + fb->offset ||
|
|
scanout->width != r->width ||
|
|
scanout->height != r->height) {
|
|
pixman_image_t *rect;
|
|
void *ptr = data + fb->offset;
|
|
rect = pixman_image_create_bits(fb->format, r->width, r->height,
|
|
ptr, fb->stride);
|
|
|
|
if (res->image) {
|
|
pixman_image_ref(res->image);
|
|
pixman_image_set_destroy_function(rect, virtio_unref_resource,
|
|
res->image);
|
|
}
|
|
|
|
/* realloc the surface ptr */
|
|
scanout->ds = qemu_create_displaysurface_pixman(rect);
|
|
if (!scanout->ds) {
|
|
*error = VIRTIO_GPU_RESP_ERR_UNSPEC;
|
|
return;
|
|
}
|
|
|
|
pixman_image_unref(rect);
|
|
dpy_gfx_replace_surface(g->parent_obj.scanout[scanout_id].con,
|
|
scanout->ds);
|
|
}
|
|
|
|
virtio_gpu_update_scanout(g, scanout_id, res, r);
|
|
}
|
|
|
|
static void virtio_gpu_set_scanout(VirtIOGPU *g,
|
|
struct virtio_gpu_ctrl_command *cmd)
|
|
{
|
|
struct virtio_gpu_simple_resource *res;
|
|
struct virtio_gpu_framebuffer fb = { 0 };
|
|
struct virtio_gpu_set_scanout ss;
|
|
|
|
VIRTIO_GPU_FILL_CMD(ss);
|
|
virtio_gpu_bswap_32(&ss, sizeof(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);
|
|
|
|
if (ss.scanout_id >= g->parent_obj.conf.max_outputs) {
|
|
qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d",
|
|
__func__, ss.scanout_id);
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID;
|
|
return;
|
|
}
|
|
|
|
if (ss.resource_id == 0) {
|
|
virtio_gpu_disable_scanout(g, ss.scanout_id);
|
|
return;
|
|
}
|
|
|
|
res = virtio_gpu_find_check_resource(g, ss.resource_id, true,
|
|
__func__, &cmd->error);
|
|
if (!res) {
|
|
return;
|
|
}
|
|
|
|
fb.format = pixman_image_get_format(res->image);
|
|
fb.bytes_pp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(fb.format), 8);
|
|
fb.width = pixman_image_get_width(res->image);
|
|
fb.height = pixman_image_get_height(res->image);
|
|
fb.stride = pixman_image_get_stride(res->image);
|
|
fb.offset = ss.r.x * fb.bytes_pp + ss.r.y * fb.stride;
|
|
|
|
virtio_gpu_do_set_scanout(g, ss.scanout_id,
|
|
&fb, res, &ss.r, &cmd->error);
|
|
}
|
|
|
|
static void virtio_gpu_set_scanout_blob(VirtIOGPU *g,
|
|
struct virtio_gpu_ctrl_command *cmd)
|
|
{
|
|
struct virtio_gpu_simple_resource *res;
|
|
struct virtio_gpu_framebuffer fb = { 0 };
|
|
struct virtio_gpu_set_scanout_blob ss;
|
|
uint64_t fbend;
|
|
|
|
VIRTIO_GPU_FILL_CMD(ss);
|
|
virtio_gpu_scanout_blob_bswap(&ss);
|
|
trace_virtio_gpu_cmd_set_scanout_blob(ss.scanout_id, ss.resource_id,
|
|
ss.r.width, ss.r.height, ss.r.x,
|
|
ss.r.y);
|
|
|
|
if (ss.scanout_id >= g->parent_obj.conf.max_outputs) {
|
|
qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d",
|
|
__func__, ss.scanout_id);
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID;
|
|
return;
|
|
}
|
|
|
|
if (ss.resource_id == 0) {
|
|
virtio_gpu_disable_scanout(g, ss.scanout_id);
|
|
return;
|
|
}
|
|
|
|
res = virtio_gpu_find_check_resource(g, ss.resource_id, true,
|
|
__func__, &cmd->error);
|
|
if (!res) {
|
|
return;
|
|
}
|
|
|
|
fb.format = virtio_gpu_get_pixman_format(ss.format);
|
|
if (!fb.format) {
|
|
qemu_log_mask(LOG_GUEST_ERROR,
|
|
"%s: host couldn't handle guest format %d\n",
|
|
__func__, ss.format);
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
|
|
return;
|
|
}
|
|
|
|
fb.bytes_pp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(fb.format), 8);
|
|
fb.width = ss.width;
|
|
fb.height = ss.height;
|
|
fb.stride = ss.strides[0];
|
|
fb.offset = ss.offsets[0] + ss.r.x * fb.bytes_pp + ss.r.y * fb.stride;
|
|
|
|
fbend = fb.offset;
|
|
fbend += fb.stride * (ss.r.height - 1);
|
|
fbend += fb.bytes_pp * ss.r.width;
|
|
if (fbend > res->blob_size) {
|
|
qemu_log_mask(LOG_GUEST_ERROR,
|
|
"%s: fb end out of range\n",
|
|
__func__);
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
|
|
return;
|
|
}
|
|
|
|
virtio_gpu_do_set_scanout(g, ss.scanout_id,
|
|
&fb, res, &ss.r, &cmd->error);
|
|
}
|
|
|
|
int virtio_gpu_create_mapping_iov(VirtIOGPU *g,
|
|
uint32_t nr_entries, uint32_t offset,
|
|
struct virtio_gpu_ctrl_command *cmd,
|
|
uint64_t **addr, struct iovec **iov,
|
|
uint32_t *niov)
|
|
{
|
|
struct virtio_gpu_mem_entry *ents;
|
|
size_t esize, s;
|
|
int e, v;
|
|
|
|
if (nr_entries > 16384) {
|
|
qemu_log_mask(LOG_GUEST_ERROR,
|
|
"%s: nr_entries is too big (%d > 16384)\n",
|
|
__func__, nr_entries);
|
|
return -1;
|
|
}
|
|
|
|
esize = sizeof(*ents) * nr_entries;
|
|
ents = g_malloc(esize);
|
|
s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num,
|
|
offset, ents, esize);
|
|
if (s != esize) {
|
|
qemu_log_mask(LOG_GUEST_ERROR,
|
|
"%s: command data size incorrect %zu vs %zu\n",
|
|
__func__, s, esize);
|
|
g_free(ents);
|
|
return -1;
|
|
}
|
|
|
|
*iov = NULL;
|
|
if (addr) {
|
|
*addr = NULL;
|
|
}
|
|
for (e = 0, v = 0; e < nr_entries; e++) {
|
|
uint64_t a = le64_to_cpu(ents[e].addr);
|
|
uint32_t l = le32_to_cpu(ents[e].length);
|
|
hwaddr len;
|
|
void *map;
|
|
|
|
do {
|
|
len = l;
|
|
map = dma_memory_map(VIRTIO_DEVICE(g)->dma_as,
|
|
a, &len, DMA_DIRECTION_TO_DEVICE);
|
|
if (!map) {
|
|
qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to map MMIO memory for"
|
|
" element %d\n", __func__, e);
|
|
virtio_gpu_cleanup_mapping_iov(g, *iov, v);
|
|
g_free(ents);
|
|
*iov = NULL;
|
|
if (addr) {
|
|
g_free(*addr);
|
|
*addr = NULL;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
if (!(v % 16)) {
|
|
*iov = g_realloc(*iov, sizeof(struct iovec) * (v + 16));
|
|
if (addr) {
|
|
*addr = g_realloc(*addr, sizeof(uint64_t) * (v + 16));
|
|
}
|
|
}
|
|
(*iov)[v].iov_base = map;
|
|
(*iov)[v].iov_len = len;
|
|
if (addr) {
|
|
(*addr)[v] = a;
|
|
}
|
|
|
|
a += len;
|
|
l -= len;
|
|
v += 1;
|
|
} while (l > 0);
|
|
}
|
|
*niov = v;
|
|
|
|
g_free(ents);
|
|
return 0;
|
|
}
|
|
|
|
void virtio_gpu_cleanup_mapping_iov(VirtIOGPU *g,
|
|
struct iovec *iov, uint32_t count)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
dma_memory_unmap(VIRTIO_DEVICE(g)->dma_as,
|
|
iov[i].iov_base, iov[i].iov_len,
|
|
DMA_DIRECTION_TO_DEVICE,
|
|
iov[i].iov_len);
|
|
}
|
|
g_free(iov);
|
|
}
|
|
|
|
static 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;
|
|
res->iov_cnt = 0;
|
|
g_free(res->addrs);
|
|
res->addrs = NULL;
|
|
|
|
if (res->blob) {
|
|
virtio_gpu_fini_udmabuf(res);
|
|
}
|
|
}
|
|
|
|
static void
|
|
virtio_gpu_resource_attach_backing(VirtIOGPU *g,
|
|
struct virtio_gpu_ctrl_command *cmd)
|
|
{
|
|
struct virtio_gpu_simple_resource *res;
|
|
struct virtio_gpu_resource_attach_backing ab;
|
|
int ret;
|
|
|
|
VIRTIO_GPU_FILL_CMD(ab);
|
|
virtio_gpu_bswap_32(&ab, sizeof(ab));
|
|
trace_virtio_gpu_cmd_res_back_attach(ab.resource_id);
|
|
|
|
res = virtio_gpu_find_resource(g, ab.resource_id);
|
|
if (!res) {
|
|
qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal resource specified %d\n",
|
|
__func__, ab.resource_id);
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
|
|
return;
|
|
}
|
|
|
|
if (res->iov) {
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
|
|
return;
|
|
}
|
|
|
|
ret = virtio_gpu_create_mapping_iov(g, ab.nr_entries, sizeof(ab), cmd,
|
|
&res->addrs, &res->iov, &res->iov_cnt);
|
|
if (ret != 0) {
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void
|
|
virtio_gpu_resource_detach_backing(VirtIOGPU *g,
|
|
struct virtio_gpu_ctrl_command *cmd)
|
|
{
|
|
struct virtio_gpu_simple_resource *res;
|
|
struct virtio_gpu_resource_detach_backing detach;
|
|
|
|
VIRTIO_GPU_FILL_CMD(detach);
|
|
virtio_gpu_bswap_32(&detach, sizeof(detach));
|
|
trace_virtio_gpu_cmd_res_back_detach(detach.resource_id);
|
|
|
|
res = virtio_gpu_find_check_resource(g, detach.resource_id, true,
|
|
__func__, &cmd->error);
|
|
if (!res) {
|
|
return;
|
|
}
|
|
virtio_gpu_cleanup_mapping(g, res);
|
|
}
|
|
|
|
void virtio_gpu_simple_process_cmd(VirtIOGPU *g,
|
|
struct virtio_gpu_ctrl_command *cmd)
|
|
{
|
|
VIRTIO_GPU_FILL_CMD(cmd->cmd_hdr);
|
|
virtio_gpu_ctrl_hdr_bswap(&cmd->cmd_hdr);
|
|
|
|
switch (cmd->cmd_hdr.type) {
|
|
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_2D:
|
|
virtio_gpu_resource_create_2d(g, cmd);
|
|
break;
|
|
case VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB:
|
|
if (!virtio_gpu_blob_enabled(g->parent_obj.conf)) {
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
|
|
break;
|
|
}
|
|
virtio_gpu_resource_create_blob(g, cmd);
|
|
break;
|
|
case VIRTIO_GPU_CMD_RESOURCE_UNREF:
|
|
virtio_gpu_resource_unref(g, cmd);
|
|
break;
|
|
case VIRTIO_GPU_CMD_RESOURCE_FLUSH:
|
|
virtio_gpu_resource_flush(g, cmd);
|
|
break;
|
|
case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D:
|
|
virtio_gpu_transfer_to_host_2d(g, cmd);
|
|
break;
|
|
case VIRTIO_GPU_CMD_SET_SCANOUT:
|
|
virtio_gpu_set_scanout(g, cmd);
|
|
break;
|
|
case VIRTIO_GPU_CMD_SET_SCANOUT_BLOB:
|
|
if (!virtio_gpu_blob_enabled(g->parent_obj.conf)) {
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
|
|
break;
|
|
}
|
|
virtio_gpu_set_scanout_blob(g, cmd);
|
|
break;
|
|
case VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING:
|
|
virtio_gpu_resource_attach_backing(g, cmd);
|
|
break;
|
|
case VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING:
|
|
virtio_gpu_resource_detach_backing(g, cmd);
|
|
break;
|
|
default:
|
|
cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
|
|
break;
|
|
}
|
|
if (!cmd->finished) {
|
|
if (!g->parent_obj.renderer_blocked) {
|
|
virtio_gpu_ctrl_response_nodata(g, cmd, cmd->error ? cmd->error :
|
|
VIRTIO_GPU_RESP_OK_NODATA);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void virtio_gpu_handle_ctrl_cb(VirtIODevice *vdev, VirtQueue *vq)
|
|
{
|
|
VirtIOGPU *g = VIRTIO_GPU(vdev);
|
|
qemu_bh_schedule(g->ctrl_bh);
|
|
}
|
|
|
|
static void virtio_gpu_handle_cursor_cb(VirtIODevice *vdev, VirtQueue *vq)
|
|
{
|
|
VirtIOGPU *g = VIRTIO_GPU(vdev);
|
|
qemu_bh_schedule(g->cursor_bh);
|
|
}
|
|
|
|
void virtio_gpu_process_cmdq(VirtIOGPU *g)
|
|
{
|
|
struct virtio_gpu_ctrl_command *cmd;
|
|
VirtIOGPUClass *vgc = VIRTIO_GPU_GET_CLASS(g);
|
|
|
|
if (g->processing_cmdq) {
|
|
return;
|
|
}
|
|
g->processing_cmdq = true;
|
|
while (!QTAILQ_EMPTY(&g->cmdq)) {
|
|
cmd = QTAILQ_FIRST(&g->cmdq);
|
|
|
|
if (g->parent_obj.renderer_blocked) {
|
|
break;
|
|
}
|
|
|
|
/* process command */
|
|
vgc->process_cmd(g, cmd);
|
|
|
|
QTAILQ_REMOVE(&g->cmdq, cmd, next);
|
|
if (virtio_gpu_stats_enabled(g->parent_obj.conf)) {
|
|
g->stats.requests++;
|
|
}
|
|
|
|
if (!cmd->finished) {
|
|
QTAILQ_INSERT_TAIL(&g->fenceq, cmd, next);
|
|
g->inflight++;
|
|
if (virtio_gpu_stats_enabled(g->parent_obj.conf)) {
|
|
if (g->stats.max_inflight < g->inflight) {
|
|
g->stats.max_inflight = g->inflight;
|
|
}
|
|
fprintf(stderr, "inflight: %3d (+)\r", g->inflight);
|
|
}
|
|
} else {
|
|
g_free(cmd);
|
|
}
|
|
}
|
|
g->processing_cmdq = false;
|
|
}
|
|
|
|
static void virtio_gpu_process_fenceq(VirtIOGPU *g)
|
|
{
|
|
struct virtio_gpu_ctrl_command *cmd, *tmp;
|
|
|
|
QTAILQ_FOREACH_SAFE(cmd, &g->fenceq, next, tmp) {
|
|
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->inflight--;
|
|
if (virtio_gpu_stats_enabled(g->parent_obj.conf)) {
|
|
fprintf(stderr, "inflight: %3d (-)\r", g->inflight);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void virtio_gpu_handle_gl_flushed(VirtIOGPUBase *b)
|
|
{
|
|
VirtIOGPU *g = container_of(b, VirtIOGPU, parent_obj);
|
|
|
|
virtio_gpu_process_fenceq(g);
|
|
virtio_gpu_process_cmdq(g);
|
|
}
|
|
|
|
static void virtio_gpu_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_ctrl_bh(void *opaque)
|
|
{
|
|
VirtIOGPU *g = opaque;
|
|
VirtIOGPUClass *vgc = VIRTIO_GPU_GET_CLASS(g);
|
|
|
|
vgc->handle_ctrl(&g->parent_obj.parent_obj, g->ctrl_vq);
|
|
}
|
|
|
|
static void virtio_gpu_handle_cursor(VirtIODevice *vdev, VirtQueue *vq)
|
|
{
|
|
VirtIOGPU *g = VIRTIO_GPU(vdev);
|
|
VirtQueueElement *elem;
|
|
size_t s;
|
|
struct virtio_gpu_update_cursor cursor_info;
|
|
|
|
if (!virtio_queue_ready(vq)) {
|
|
return;
|
|
}
|
|
for (;;) {
|
|
elem = virtqueue_pop(vq, sizeof(VirtQueueElement));
|
|
if (!elem) {
|
|
break;
|
|
}
|
|
|
|
s = iov_to_buf(elem->out_sg, elem->out_num, 0,
|
|
&cursor_info, sizeof(cursor_info));
|
|
if (s != sizeof(cursor_info)) {
|
|
qemu_log_mask(LOG_GUEST_ERROR,
|
|
"%s: cursor size incorrect %zu vs %zu\n",
|
|
__func__, s, sizeof(cursor_info));
|
|
} else {
|
|
virtio_gpu_bswap_32(&cursor_info, sizeof(cursor_info));
|
|
update_cursor(g, &cursor_info);
|
|
}
|
|
virtqueue_push(vq, elem, 0);
|
|
virtio_notify(vdev, vq);
|
|
g_free(elem);
|
|
}
|
|
}
|
|
|
|
static void virtio_gpu_cursor_bh(void *opaque)
|
|
{
|
|
VirtIOGPU *g = opaque;
|
|
virtio_gpu_handle_cursor(&g->parent_obj.parent_obj, g->cursor_vq);
|
|
}
|
|
|
|
static const VMStateDescription vmstate_virtio_gpu_scanout = {
|
|
.name = "virtio-gpu-one-scanout",
|
|
.version_id = 1,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_UINT32(resource_id, struct virtio_gpu_scanout),
|
|
VMSTATE_UINT32(width, struct virtio_gpu_scanout),
|
|
VMSTATE_UINT32(height, struct virtio_gpu_scanout),
|
|
VMSTATE_INT32(x, struct virtio_gpu_scanout),
|
|
VMSTATE_INT32(y, struct virtio_gpu_scanout),
|
|
VMSTATE_UINT32(cursor.resource_id, struct virtio_gpu_scanout),
|
|
VMSTATE_UINT32(cursor.hot_x, struct virtio_gpu_scanout),
|
|
VMSTATE_UINT32(cursor.hot_y, struct virtio_gpu_scanout),
|
|
VMSTATE_UINT32(cursor.pos.x, struct virtio_gpu_scanout),
|
|
VMSTATE_UINT32(cursor.pos.y, struct virtio_gpu_scanout),
|
|
VMSTATE_END_OF_LIST()
|
|
},
|
|
};
|
|
|
|
static const VMStateDescription vmstate_virtio_gpu_scanouts = {
|
|
.name = "virtio-gpu-scanouts",
|
|
.version_id = 1,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_INT32(parent_obj.enable, struct VirtIOGPU),
|
|
VMSTATE_UINT32_EQUAL(parent_obj.conf.max_outputs,
|
|
struct VirtIOGPU, NULL),
|
|
VMSTATE_STRUCT_VARRAY_UINT32(parent_obj.scanout, struct VirtIOGPU,
|
|
parent_obj.conf.max_outputs, 1,
|
|
vmstate_virtio_gpu_scanout,
|
|
struct virtio_gpu_scanout),
|
|
VMSTATE_END_OF_LIST()
|
|
},
|
|
};
|
|
|
|
static int virtio_gpu_save(QEMUFile *f, void *opaque, size_t size,
|
|
const VMStateField *field, JSONWriter *vmdesc)
|
|
{
|
|
VirtIOGPU *g = opaque;
|
|
struct virtio_gpu_simple_resource *res;
|
|
int i;
|
|
|
|
/* in 2d mode we should never find unprocessed commands here */
|
|
assert(QTAILQ_EMPTY(&g->cmdq));
|
|
|
|
QTAILQ_FOREACH(res, &g->reslist, next) {
|
|
qemu_put_be32(f, res->resource_id);
|
|
qemu_put_be32(f, res->width);
|
|
qemu_put_be32(f, res->height);
|
|
qemu_put_be32(f, res->format);
|
|
qemu_put_be32(f, res->iov_cnt);
|
|
for (i = 0; i < res->iov_cnt; i++) {
|
|
qemu_put_be64(f, res->addrs[i]);
|
|
qemu_put_be32(f, res->iov[i].iov_len);
|
|
}
|
|
qemu_put_buffer(f, (void *)pixman_image_get_data(res->image),
|
|
pixman_image_get_stride(res->image) * res->height);
|
|
}
|
|
qemu_put_be32(f, 0); /* end of list */
|
|
|
|
return vmstate_save_state(f, &vmstate_virtio_gpu_scanouts, g, NULL);
|
|
}
|
|
|
|
static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size,
|
|
const VMStateField *field)
|
|
{
|
|
VirtIOGPU *g = opaque;
|
|
struct virtio_gpu_simple_resource *res;
|
|
struct virtio_gpu_scanout *scanout;
|
|
uint32_t resource_id, pformat;
|
|
int i;
|
|
|
|
g->hostmem = 0;
|
|
|
|
resource_id = qemu_get_be32(f);
|
|
while (resource_id != 0) {
|
|
res = virtio_gpu_find_resource(g, resource_id);
|
|
if (res) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
res = g_new0(struct virtio_gpu_simple_resource, 1);
|
|
res->resource_id = resource_id;
|
|
res->width = qemu_get_be32(f);
|
|
res->height = qemu_get_be32(f);
|
|
res->format = qemu_get_be32(f);
|
|
res->iov_cnt = qemu_get_be32(f);
|
|
|
|
/* allocate */
|
|
pformat = virtio_gpu_get_pixman_format(res->format);
|
|
if (!pformat) {
|
|
g_free(res);
|
|
return -EINVAL;
|
|
}
|
|
res->image = pixman_image_create_bits(pformat,
|
|
res->width, res->height,
|
|
NULL, 0);
|
|
if (!res->image) {
|
|
g_free(res);
|
|
return -EINVAL;
|
|
}
|
|
|
|
res->hostmem = calc_image_hostmem(pformat, res->width, res->height);
|
|
|
|
res->addrs = g_new(uint64_t, res->iov_cnt);
|
|
res->iov = g_new(struct iovec, res->iov_cnt);
|
|
|
|
/* read data */
|
|
for (i = 0; i < res->iov_cnt; i++) {
|
|
res->addrs[i] = qemu_get_be64(f);
|
|
res->iov[i].iov_len = qemu_get_be32(f);
|
|
}
|
|
qemu_get_buffer(f, (void *)pixman_image_get_data(res->image),
|
|
pixman_image_get_stride(res->image) * res->height);
|
|
|
|
/* restore mapping */
|
|
for (i = 0; i < res->iov_cnt; i++) {
|
|
hwaddr len = res->iov[i].iov_len;
|
|
res->iov[i].iov_base =
|
|
dma_memory_map(VIRTIO_DEVICE(g)->dma_as,
|
|
res->addrs[i], &len, DMA_DIRECTION_TO_DEVICE);
|
|
|
|
if (!res->iov[i].iov_base || len != res->iov[i].iov_len) {
|
|
/* Clean up the half-a-mapping we just created... */
|
|
if (res->iov[i].iov_base) {
|
|
dma_memory_unmap(VIRTIO_DEVICE(g)->dma_as,
|
|
res->iov[i].iov_base,
|
|
len,
|
|
DMA_DIRECTION_TO_DEVICE,
|
|
0);
|
|
}
|
|
/* ...and the mappings for previous loop iterations */
|
|
res->iov_cnt = i;
|
|
virtio_gpu_cleanup_mapping(g, res);
|
|
pixman_image_unref(res->image);
|
|
g_free(res);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
QTAILQ_INSERT_HEAD(&g->reslist, res, next);
|
|
g->hostmem += res->hostmem;
|
|
|
|
resource_id = qemu_get_be32(f);
|
|
}
|
|
|
|
/* load & apply scanout state */
|
|
vmstate_load_state(f, &vmstate_virtio_gpu_scanouts, g, 1);
|
|
for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
|
|
scanout = &g->parent_obj.scanout[i];
|
|
if (!scanout->resource_id) {
|
|
continue;
|
|
}
|
|
res = virtio_gpu_find_resource(g, scanout->resource_id);
|
|
if (!res) {
|
|
return -EINVAL;
|
|
}
|
|
scanout->ds = qemu_create_displaysurface_pixman(res->image);
|
|
if (!scanout->ds) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
dpy_gfx_replace_surface(scanout->con, scanout->ds);
|
|
dpy_gfx_update_full(scanout->con);
|
|
if (scanout->cursor.resource_id) {
|
|
update_cursor(g, &scanout->cursor);
|
|
}
|
|
res->scanout_bitmask |= (1 << i);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
|
|
{
|
|
VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
|
|
VirtIOGPU *g = VIRTIO_GPU(qdev);
|
|
|
|
if (virtio_gpu_blob_enabled(g->parent_obj.conf)) {
|
|
if (!virtio_gpu_have_udmabuf()) {
|
|
error_setg(errp, "cannot enable blob resources without udmabuf");
|
|
return;
|
|
}
|
|
|
|
if (virtio_gpu_virgl_enabled(g->parent_obj.conf)) {
|
|
error_setg(errp, "blobs and virgl are not compatible (yet)");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!virtio_gpu_base_device_realize(qdev,
|
|
virtio_gpu_handle_ctrl_cb,
|
|
virtio_gpu_handle_cursor_cb,
|
|
errp)) {
|
|
return;
|
|
}
|
|
|
|
g->ctrl_vq = virtio_get_queue(vdev, 0);
|
|
g->cursor_vq = virtio_get_queue(vdev, 1);
|
|
g->ctrl_bh = qemu_bh_new(virtio_gpu_ctrl_bh, g);
|
|
g->cursor_bh = qemu_bh_new(virtio_gpu_cursor_bh, g);
|
|
QTAILQ_INIT(&g->reslist);
|
|
QTAILQ_INIT(&g->cmdq);
|
|
QTAILQ_INIT(&g->fenceq);
|
|
}
|
|
|
|
void virtio_gpu_reset(VirtIODevice *vdev)
|
|
{
|
|
VirtIOGPU *g = VIRTIO_GPU(vdev);
|
|
struct virtio_gpu_simple_resource *res, *tmp;
|
|
struct virtio_gpu_ctrl_command *cmd;
|
|
|
|
QTAILQ_FOREACH_SAFE(res, &g->reslist, next, tmp) {
|
|
virtio_gpu_resource_destroy(g, res);
|
|
}
|
|
|
|
while (!QTAILQ_EMPTY(&g->cmdq)) {
|
|
cmd = QTAILQ_FIRST(&g->cmdq);
|
|
QTAILQ_REMOVE(&g->cmdq, cmd, next);
|
|
g_free(cmd);
|
|
}
|
|
|
|
while (!QTAILQ_EMPTY(&g->fenceq)) {
|
|
cmd = QTAILQ_FIRST(&g->fenceq);
|
|
QTAILQ_REMOVE(&g->fenceq, cmd, next);
|
|
g->inflight--;
|
|
g_free(cmd);
|
|
}
|
|
|
|
virtio_gpu_base_reset(VIRTIO_GPU_BASE(vdev));
|
|
}
|
|
|
|
static void
|
|
virtio_gpu_get_config(VirtIODevice *vdev, uint8_t *config)
|
|
{
|
|
VirtIOGPUBase *g = VIRTIO_GPU_BASE(vdev);
|
|
|
|
memcpy(config, &g->virtio_config, sizeof(g->virtio_config));
|
|
}
|
|
|
|
static void
|
|
virtio_gpu_set_config(VirtIODevice *vdev, const uint8_t *config)
|
|
{
|
|
VirtIOGPUBase *g = VIRTIO_GPU_BASE(vdev);
|
|
const struct virtio_gpu_config *vgconfig =
|
|
(const struct virtio_gpu_config *)config;
|
|
|
|
if (vgconfig->events_clear) {
|
|
g->virtio_config.events_read &= ~vgconfig->events_clear;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* For historical reasons virtio_gpu does not adhere to virtio migration
|
|
* scheme as described in doc/virtio-migration.txt, in a sense that no
|
|
* save/load callback are provided to the core. Instead the device data
|
|
* is saved/loaded after the core data.
|
|
*
|
|
* Because of this we need a special vmsd.
|
|
*/
|
|
static const VMStateDescription vmstate_virtio_gpu = {
|
|
.name = "virtio-gpu",
|
|
.minimum_version_id = VIRTIO_GPU_VM_VERSION,
|
|
.version_id = VIRTIO_GPU_VM_VERSION,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_VIRTIO_DEVICE /* core */,
|
|
{
|
|
.name = "virtio-gpu",
|
|
.info = &(const VMStateInfo) {
|
|
.name = "virtio-gpu",
|
|
.get = virtio_gpu_load,
|
|
.put = virtio_gpu_save,
|
|
},
|
|
.flags = VMS_SINGLE,
|
|
} /* device */,
|
|
VMSTATE_END_OF_LIST()
|
|
},
|
|
};
|
|
|
|
static Property virtio_gpu_properties[] = {
|
|
VIRTIO_GPU_BASE_PROPERTIES(VirtIOGPU, parent_obj.conf),
|
|
DEFINE_PROP_SIZE("max_hostmem", VirtIOGPU, conf_max_hostmem,
|
|
256 * MiB),
|
|
DEFINE_PROP_BIT("blob", VirtIOGPU, parent_obj.conf.flags,
|
|
VIRTIO_GPU_FLAG_BLOB_ENABLED, false),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void virtio_gpu_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
|
|
VirtIOGPUClass *vgc = VIRTIO_GPU_CLASS(klass);
|
|
VirtIOGPUBaseClass *vgbc = &vgc->parent;
|
|
|
|
vgc->handle_ctrl = virtio_gpu_handle_ctrl;
|
|
vgc->process_cmd = virtio_gpu_simple_process_cmd;
|
|
vgc->update_cursor_data = virtio_gpu_update_cursor_data;
|
|
vgbc->gl_flushed = virtio_gpu_handle_gl_flushed;
|
|
|
|
vdc->realize = virtio_gpu_device_realize;
|
|
vdc->reset = virtio_gpu_reset;
|
|
vdc->get_config = virtio_gpu_get_config;
|
|
vdc->set_config = virtio_gpu_set_config;
|
|
|
|
dc->vmsd = &vmstate_virtio_gpu;
|
|
device_class_set_props(dc, virtio_gpu_properties);
|
|
}
|
|
|
|
static const TypeInfo virtio_gpu_info = {
|
|
.name = TYPE_VIRTIO_GPU,
|
|
.parent = TYPE_VIRTIO_GPU_BASE,
|
|
.instance_size = sizeof(VirtIOGPU),
|
|
.class_size = sizeof(VirtIOGPUClass),
|
|
.class_init = virtio_gpu_class_init,
|
|
};
|
|
module_obj(TYPE_VIRTIO_GPU);
|
|
|
|
static void virtio_register_types(void)
|
|
{
|
|
type_register_static(&virtio_gpu_info);
|
|
}
|
|
|
|
type_init(virtio_register_types)
|