| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/virtualization/bin/vmm/controller/virtio_rng.h" |
| |
| #include <lib/sys/cpp/service_directory.h> |
| |
| static constexpr char kVirtioRngUrl[] = "fuchsia-pkg://fuchsia.com/virtio_rng#meta/virtio_rng.cmx"; |
| |
| VirtioRng::VirtioRng(const PhysMem& phys_mem) |
| : VirtioComponentDevice("Virtio RNG", phys_mem, 0 /* device_features */, |
| fit::bind_member(this, &VirtioRng::ConfigureQueue), |
| fit::bind_member(this, &VirtioRng::Ready)) {} |
| |
| zx_status_t VirtioRng::Start(const zx::guest& guest, fuchsia::sys::Launcher* launcher, |
| async_dispatcher_t* dispatcher) { |
| fuchsia::sys::LaunchInfo launch_info; |
| launch_info.url = kVirtioRngUrl; |
| auto services = sys::ServiceDirectory::CreateWithRequest(&launch_info.directory_request); |
| launcher->CreateComponent(std::move(launch_info), controller_.NewRequest()); |
| services->Connect(rng_.NewRequest()); |
| |
| fuchsia::virtualization::hardware::StartInfo start_info; |
| zx_status_t status = PrepStart(guest, dispatcher, &start_info); |
| if (status != ZX_OK) { |
| return status; |
| } |
| return rng_->Start(std::move(start_info)); |
| } |
| |
| zx_status_t VirtioRng::ConfigureQueue(uint16_t queue, uint16_t size, zx_gpaddr_t desc, |
| zx_gpaddr_t avail, zx_gpaddr_t used) { |
| return rng_->ConfigureQueue(queue, size, desc, avail, used); |
| } |
| |
| zx_status_t VirtioRng::Ready(uint32_t negotiated_features) { |
| return rng_->Ready(negotiated_features); |
| } |