| // 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 <fidl/fuchsia.hardware.platform.bus/cpp/driver/fidl.h> |
| #include <fidl/fuchsia.hardware.platform.bus/cpp/fidl.h> |
| #include <lib/ddk/binding.h> |
| #include <lib/ddk/debug.h> |
| #include <lib/ddk/device.h> |
| #include <lib/ddk/metadata.h> |
| #include <lib/ddk/platform-defs.h> |
| #include <lib/driver/component/cpp/composite_node_spec.h> |
| #include <lib/driver/component/cpp/node_add_args.h> |
| #include <lib/stdcompat/span.h> |
| #include <zircon/syscalls/smc.h> |
| |
| #include <cstdint> |
| |
| #include <bind/fuchsia/cpp/bind.h> |
| #include <bind/fuchsia/platform/cpp/bind.h> |
| |
| #include "astro.h" |
| #include "src/devices/lib/fidl-metadata/tee.h" |
| |
| namespace fdf { |
| using namespace fuchsia_driver_framework; |
| } // namespace fdf |
| |
| namespace astro { |
| namespace fpbus = fuchsia_hardware_platform_bus; |
| |
| // The Astro Secure OS memory region is defined within the bootloader image. |
| // The ZBI provided to the kernel must mark this memory space as reserved. |
| // The OP-TEE driver will query OP-TEE for the exact sub-range of this memory |
| // space to be used by the driver. |
| #define ASTRO_SECURE_OS_BASE 0x05300000 |
| #define ASTRO_SECURE_OS_LENGTH 0x02000000 |
| |
| #define ASTRO_OPTEE_DEFAULT_THREAD_COUNT 2 |
| |
| using tee_thread_config_t = fidl_metadata::tee::CustomThreadConfig; |
| |
| static const std::vector<fpbus::Mmio> astro_tee_mmios{ |
| {{ |
| .base = ASTRO_SECURE_OS_BASE, |
| .length = ASTRO_SECURE_OS_LENGTH, |
| }}, |
| }; |
| |
| static const std::vector<fpbus::Bti> astro_tee_btis{ |
| {{ |
| .iommu_index = 0, |
| .bti_id = BTI_TEE, |
| }}, |
| }; |
| |
| static const std::vector<fpbus::Smc> astro_tee_smcs{ |
| {{ |
| .service_call_num_base = ARM_SMC_SERVICE_CALL_NUM_TRUSTED_OS_BASE, |
| .count = ARM_SMC_SERVICE_CALL_NUM_TRUSTED_OS_LENGTH, |
| .exclusive = false, |
| }}, |
| }; |
| |
| static tee_thread_config_t tee_thread_cfg[] = { |
| {.role = "fuchsia.tee.media", |
| .count = 1, |
| .trusted_apps = { |
| {0x9a04f079, |
| 0x9840, |
| 0x4286, |
| {0xab, 0x92, 0xe6, 0x5b, 0xe0, 0x88, 0x5f, 0x95}}, // playready |
| {0xe043cde0, 0x61d0, 0x11e5, {0x9c, 0x26, 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}} // widevine |
| }}}; |
| |
| zx_status_t Astro::TeeInit() { |
| std::vector<fpbus::Metadata> metadata; |
| |
| fpbus::Node tee_dev; |
| tee_dev.name() = "tee"; |
| tee_dev.vid() = bind_fuchsia_platform::BIND_PLATFORM_DEV_VID_GENERIC; |
| tee_dev.pid() = bind_fuchsia_platform::BIND_PLATFORM_DEV_PID_GENERIC; |
| tee_dev.did() = bind_fuchsia_platform::BIND_PLATFORM_DEV_DID_OPTEE; |
| tee_dev.mmio() = astro_tee_mmios; |
| tee_dev.bti() = astro_tee_btis; |
| tee_dev.smc() = astro_tee_smcs; |
| |
| auto optee_status = fidl_metadata::tee::TeeMetadataToFidl( |
| ASTRO_OPTEE_DEFAULT_THREAD_COUNT, |
| cpp20::span<const tee_thread_config_t>(tee_thread_cfg, std::size(tee_thread_cfg))); |
| if (optee_status.is_error()) { |
| zxlogf(ERROR, "%s: failed to fidl encode optee thread config: %d", __func__, |
| optee_status.error_value()); |
| return optee_status.error_value(); |
| } |
| |
| auto& data = optee_status.value(); |
| |
| metadata.emplace_back([&]() { |
| fpbus::Metadata ret; |
| ret.type() = DEVICE_METADATA_TEE_THREAD_CONFIG; |
| ret.data() = std::move(data); |
| return ret; |
| }()); |
| |
| tee_dev.metadata() = std::move(metadata); |
| |
| fidl::Arena<> fidl_arena; |
| fdf::Arena arena('TEE_'); |
| auto result = pbus_.buffer(arena)->AddCompositeNodeSpec( |
| fidl::ToWire(fidl_arena, tee_dev), |
| fidl::ToWire(fidl_arena, fdf::CompositeNodeSpec{{.name = "tee", .parents = {}}})); |
| if (!result.ok()) { |
| zxlogf(ERROR, "AddCompositeNodeSpec Tee(tee_dev) request failed: %s", |
| result.FormatDescription().data()); |
| return result.status(); |
| } |
| if (result->is_error()) { |
| zxlogf(ERROR, "AddCompositeNodeSpec Tee(tee_dev) failed: %s", |
| zx_status_get_string(result->error_value())); |
| return result->error_value(); |
| } |
| return ZX_OK; |
| } |
| |
| } // namespace astro |