From nobody Tue Feb 10 04:08:10 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=collabora.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1627480474182134.08715100258985; Wed, 28 Jul 2021 06:54:34 -0700 (PDT) Received: from localhost ([::1]:36228 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m8k13-0003pI-33 for importer@patchew.org; Wed, 28 Jul 2021 09:54:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51810) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m8juC-0005Zd-DK for qemu-devel@nongnu.org; Wed, 28 Jul 2021 09:47:28 -0400 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]:51778) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m8juA-0005UT-G9 for qemu-devel@nongnu.org; Wed, 28 Jul 2021 09:47:28 -0400 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: fahien) with ESMTPSA id 2BAEA1F4384F From: Antonio Caggiano To: qemu-devel@nongnu.org Subject: [PATCH v2 8/8] virtio-gpu: Handle resource blob commands Date: Wed, 28 Jul 2021 15:46:34 +0200 Message-Id: <20210728134634.2142156-9-antonio.caggiano@collabora.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210728134634.2142156-1-antonio.caggiano@collabora.com> References: <20210728134634.2142156-1-antonio.caggiano@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1098:0:82:1000:25:2eeb:e3e3; envelope-from=antonio.caggiano@collabora.com; helo=bhuna.collabora.co.uk X-Spam_score_int: 0 X-Spam_score: -0.0 X-Spam_bar: / X-Spam_report: (-0.0 / 5.0 requ) SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Gerd Hoffmann , "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1627480474578100001 Content-Type: text/plain; charset="utf-8" Support BLOB resources creation by calling virgl_renderer_resource_create_b= lob. Signed-off-by: Antonio Caggiano --- hw/display/virtio-gpu-virgl.c | 148 +++++++++++++++++++++++++++ hw/display/virtio-gpu.c | 9 +- include/hw/virtio/virtio-gpu-bswap.h | 18 ++++ include/hw/virtio/virtio-gpu.h | 3 + 4 files changed, 170 insertions(+), 8 deletions(-) diff --git a/hw/display/virtio-gpu-virgl.c b/hw/display/virtio-gpu-virgl.c index ea903172dd..62ca9bacbf 100644 --- a/hw/display/virtio-gpu-virgl.c +++ b/hw/display/virtio-gpu-virgl.c @@ -16,6 +16,8 @@ #include "trace.h" #include "hw/virtio/virtio.h" #include "hw/virtio/virtio-gpu.h" +#include "hw/virtio/virtio-gpu-bswap.h" +#include "hw/virtio/virtio-iommu.h" =20 #include =20 @@ -409,6 +411,143 @@ static void virgl_cmd_get_capset(VirtIOGPU *g, g_free(resp); } =20 +static void virgl_cmd_resource_create_blob(VirtIOGPU *g, + struct virtio_gpu_ctrl_command = *cmd) +{ + struct virtio_gpu_simple_resource *res; + struct virtio_gpu_resource_create_blob cblob; + int ret; + + VIRTIO_GPU_FILL_CMD(cblob); + virtio_gpu_create_blob_bswap(&cblob); + trace_virtio_gpu_cmd_res_create_blob(cblob.resource_id, cblob.size); + + if (cblob.resource_id =3D=3D 0) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: resource id 0 is not allowed\n= ", + __func__); + cmd->error =3D VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; + return; + } + + res =3D virtio_gpu_find_resource(g, cblob.resource_id); + if (res) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: resource already exists %d\n", + __func__, cblob.resource_id); + cmd->error =3D VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; + return; + } + + res =3D g_new0(struct virtio_gpu_simple_resource, 1); + res->resource_id =3D cblob.resource_id; + res->blob_size =3D cblob.size; + + if (res->iov) { + cmd->error =3D VIRTIO_GPU_RESP_ERR_UNSPEC; + return; + } + + if (cblob.blob_mem !=3D VIRTIO_GPU_BLOB_MEM_HOST3D) { + ret =3D virtio_gpu_create_mapping_iov(g, cblob.nr_entries, sizeof(= cblob), + cmd, &res->addrs, &res->iov, + &res->iov_cnt); + if (ret !=3D 0) { + cmd->error =3D VIRTIO_GPU_RESP_ERR_UNSPEC; + return; + } + } + + if (cblob.blob_mem =3D=3D VIRTIO_GPU_BLOB_MEM_GUEST) { + virtio_gpu_init_udmabuf(res); + } + QTAILQ_INSERT_HEAD(&g->reslist, res, next); + + const struct virgl_renderer_resource_create_blob_args virgl_args =3D { + .res_handle =3D cblob.resource_id, + .ctx_id =3D cblob.hdr.ctx_id, + .blob_mem =3D cblob.blob_mem, + .blob_id =3D cblob.blob_id, + .blob_flags =3D cblob.blob_flags, + .size =3D cblob.size, + .iovecs =3D res->iov, + .num_iovs =3D res->iov_cnt, + }; + ret =3D virgl_renderer_resource_create_blob(&virgl_args); + if (ret) { + g_print("Virgl blob create error: %s\n", strerror(-ret)); + } +} + +static void virgl_cmd_resource_map_blob(VirtIOGPU *g, + struct virtio_gpu_ctrl_command *cm= d) +{ + struct virtio_gpu_simple_resource *res; + struct virtio_gpu_resource_map_blob mblob; + int ret; + void *data; + uint64_t size; + MemoryRegion *region; + struct virtio_gpu_resp_map_info resp; + + VIRTIO_GPU_FILL_CMD(mblob); + virtio_gpu_map_blob_bswap(&mblob); + + if (mblob.resource_id =3D=3D 0) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: resource id 0 is not allowed\n= ", + __func__); + cmd->error =3D VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; + return; + } + + res =3D virtio_gpu_find_resource(g, mblob.resource_id); + if (!res) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: resource does not exist %d\n", + __func__, mblob.resource_id); + cmd->error =3D VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; + return; + } + + ret =3D virgl_renderer_resource_map(mblob.hdr.ctx_id, res->resource_id= , &data, &size); + if (ret) { + g_print("Virgl blob resource map error: %s\n", strerror(-ret)); + } + + region =3D g_new0(MemoryRegion, 1); + memory_region_init_ram_device_ptr(region, OBJECT(g), NULL, size, data); + memory_region_add_subregion(&g->parent_obj.hostmem, mblob.offset, regi= on); + memory_region_set_enabled(region, true); + + memset(&resp, 0, sizeof(resp)); + resp.hdr.type =3D VIRTIO_GPU_RESP_OK_MAP_INFO; + virgl_renderer_resource_get_map_info(mblob.resource_id, &resp.map_info= ); + virtio_gpu_ctrl_response(g, cmd, &resp.hdr, sizeof(resp)); +} + +static void virgl_cmd_resource_unmap_blob(VirtIOGPU *g, + struct virtio_gpu_ctrl_command *cm= d) +{ + struct virtio_gpu_simple_resource *res; + struct virtio_gpu_resource_unmap_blob ublob; + VIRTIO_GPU_FILL_CMD(ublob); + virtio_gpu_unmap_blob_bswap(&ublob); + + if (ublob.resource_id =3D=3D 0) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: resource id 0 is not allowed\n= ", + __func__); + cmd->error =3D VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; + return; + } + + res =3D virtio_gpu_find_resource(g, ublob.resource_id); + if (!res) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: resource does not exist %d\n", + __func__, ublob.resource_id); + cmd->error =3D VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; + return; + } + + virgl_renderer_resource_unmap(ublob.hdr.ctx_id, ublob.resource_id); +} + void virtio_gpu_virgl_process_cmd(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { @@ -478,6 +617,15 @@ void virtio_gpu_virgl_process_cmd(VirtIOGPU *g, case VIRTIO_GPU_CMD_GET_EDID: virtio_gpu_get_edid(g, cmd); break; + case VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB: + virgl_cmd_resource_create_blob(g, cmd); + break; + case VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB: + virgl_cmd_resource_map_blob(g, cmd); + break; + case VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB: + virgl_cmd_resource_unmap_blob(g, cmd); + break; default: cmd->error =3D VIRTIO_GPU_RESP_ERR_UNSPEC; break; diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 26b819dd3d..c7ee584063 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -33,8 +33,6 @@ =20 #define VIRTIO_GPU_VM_VERSION 1 =20 -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, @@ -115,7 +113,7 @@ static void update_cursor(VirtIOGPU *g, struct virtio_g= pu_update_cursor *cursor) cursor->resource_id ? 1 : 0); } =20 -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; @@ -1316,11 +1314,6 @@ void virtio_gpu_device_realize(DeviceState *qdev, Er= ror **errp) 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; - } } =20 if (!virtio_gpu_base_device_realize(qdev, diff --git a/include/hw/virtio/virtio-gpu-bswap.h b/include/hw/virtio/virti= o-gpu-bswap.h index 6267cb57e5..0d868f56f9 100644 --- a/include/hw/virtio/virtio-gpu-bswap.h +++ b/include/hw/virtio/virtio-gpu-bswap.h @@ -64,10 +64,28 @@ virtio_gpu_create_blob_bswap(struct virtio_gpu_resource= _create_blob *cblob) { virtio_gpu_ctrl_hdr_bswap(&cblob->hdr); le32_to_cpus(&cblob->resource_id); + le32_to_cpus(&cblob->blob_mem); le32_to_cpus(&cblob->blob_flags); + le32_to_cpus(&cblob->nr_entries); + le64_to_cpus(&cblob->blob_id); le64_to_cpus(&cblob->size); } =20 +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 5cab5f42ac..050c8ee372 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -245,6 +245,9 @@ void virtio_gpu_base_fill_display_info(VirtIOGPUBase *g, struct virtio_gpu_resp_display_info *dpy_info); =20 /* 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, --=20 2.30.2