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Merge pull request #3138 from wwylele/ipc-mapped-buffer

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Kernel/IPC: Implement MappedBuffer translation for HLE services that use the HLERequestContext architecture.
This commit is contained in:
Weiyi Wang 2017-12-03 11:33:48 +02:00 committed by GitHub
commit 14819d0b84
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 319 additions and 125 deletions
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23
src/core/hle/ipc_helpers.h
View file

@ -121,7 +121,11 @@ public:
[[deprecated]] void PushStaticBuffer(VAddr buffer_vaddr, size_t size, u8 buffer_id);
void PushStaticBuffer(const std::vector<u8>& buffer, u8 buffer_id);
void PushMappedBuffer(VAddr buffer_vaddr, size_t size, MappedBufferPermissions perms);
[[deprecated]] void PushMappedBuffer(VAddr buffer_vaddr, size_t size,
MappedBufferPermissions perms);
/// Pushes an HLE MappedBuffer interface back to unmapped the buffer.
void PushMappedBuffer(const Kernel::MappedBuffer& mapped_buffer);
};
/// Push ///
@ -213,6 +217,11 @@ inline void RequestBuilder::PushMappedBuffer(VAddr buffer_vaddr, size_t size,
Push(buffer_vaddr);
}
inline void RequestBuilder::PushMappedBuffer(const Kernel::MappedBuffer& mapped_buffer) {
Push(mapped_buffer.GenerateDescriptor());
Push(mapped_buffer.GetId());
}
class RequestParser : public RequestHelperBase {
public:
RequestParser(Kernel::HLERequestContext& context, Header desired_header)
@ -333,9 +342,12 @@ public:
* @param[out] buffer_perms If non-null, the pointed value will be set to the permissions of the
* buffer
*/
VAddr PopMappedBuffer(size_t* data_size = nullptr,
[[deprecated]] VAddr PopMappedBuffer(size_t* data_size,
MappedBufferPermissions* buffer_perms = nullptr);
/// Pops a mapped buffer descriptor with its vaddr and resolves it to an HLE interface
Kernel::MappedBuffer& PopMappedBuffer();
/**
* @brief Reads the next normal parameters as a struct, by copying it
* @note: The output class must be correctly packed/padded to fit hardware layout.
@ -497,4 +509,11 @@ inline VAddr RequestParser::PopMappedBuffer(size_t* data_size,
return Pop<VAddr>();
}
inline Kernel::MappedBuffer& RequestParser::PopMappedBuffer() {
u32 mapped_buffer_descriptor = Pop<u32>();
ASSERT_MSG(GetDescriptorType(mapped_buffer_descriptor) == MappedBuffer,
"Tried to pop mapped buffer but the descriptor is not a mapped buffer descriptor");
return context->GetMappedBuffer(Pop<u32>());
}
} // namespace IPC

35
src/core/hle/kernel/hle_ipc.cpp
View file

@ -106,6 +106,12 @@ ResultCode HLERequestContext::PopulateFromIncomingCommandBuffer(const u32_le* sr
cmd_buf[i++] = source_address;
break;
}
case IPC::DescriptorType::MappedBuffer: {
u32 next_id = static_cast<u32>(request_mapped_buffers.size());
request_mapped_buffers.emplace_back(src_process, descriptor, src_cmdbuf[i], next_id);
cmd_buf[i++] = next_id;
break;
}
default:
UNIMPLEMENTED_MSG("Unsupported handle translation: 0x%08X", descriptor);
}
@ -165,6 +171,11 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf, P
dst_cmdbuf[i++] = target_address;
break;
}
case IPC::DescriptorType::MappedBuffer: {
VAddr addr = request_mapped_buffers[cmd_buf[i]].address;
dst_cmdbuf[i++] = addr;
break;
}
default:
UNIMPLEMENTED_MSG("Unsupported handle translation: 0x%08X", descriptor);
}
@ -173,4 +184,28 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf, P
return RESULT_SUCCESS;
}
MappedBuffer& HLERequestContext::GetMappedBuffer(u32 id_from_cmdbuf) {
ASSERT_MSG(id_from_cmdbuf < request_mapped_buffers.size(), "Mapped Buffer ID out of range!");
return request_mapped_buffers[id_from_cmdbuf];
}
MappedBuffer::MappedBuffer(const Process& process, u32 descriptor, VAddr address, u32 id)
: process(&process), address(address), id(id) {
IPC::MappedBufferDescInfo desc{descriptor};
size = desc.size;
perms = desc.perms;
}
void MappedBuffer::Read(void* dest_buffer, size_t offset, size_t size) {
ASSERT(perms & IPC::R);
ASSERT(offset + size <= this->size);
Memory::ReadBlock(*process, address + offset, dest_buffer, size);
}
void MappedBuffer::Write(const void* src_buffer, size_t offset, size_t size) {
ASSERT(perms & IPC::W);
ASSERT(offset + size <= this->size);
Memory::WriteBlock(*process, address + offset, src_buffer, size);
}
} // namespace Kernel

48
src/core/hle/kernel/hle_ipc.h
View file

@ -63,6 +63,35 @@ protected:
std::vector<SharedPtr<ServerSession>> connected_sessions;
};
class MappedBuffer {
public:
MappedBuffer(const Process& process, u32 descriptor, VAddr address, u32 id);
// interface for service
void Read(void* dest_buffer, size_t offset, size_t size);
void Write(const void* src_buffer, size_t offset, size_t size);
size_t GetSize() const {
return size;
}
// interface for ipc helper
u32 GenerateDescriptor() const {
return IPC::MappedBufferDesc(size, perms);
}
u32 GetId() const {
return id;
}
private:
friend class HLERequestContext;
u32 id;
VAddr address;
const Process* process;
size_t size;
IPC::MappedBufferPermissions perms;
};
/**
* Class containing information about an in-flight IPC request being handled by an HLE service
* implementation. Services should avoid using old global APIs (e.g. Kernel::GetCommandBuffer()) and
@ -81,6 +110,17 @@ protected:
* The end result is similar to just giving services their own real handle tables, but since these
* ids are local to a specific context, it avoids requiring services to manage handles for objects
* across multiple calls and ensuring that unneeded handles are cleaned up.
*
* HLE mapped buffer protocol
* ==========================
*
* HLE services don't have their own virtual memory space, a tweaked protocol is used to simulate
* memory mapping. The kernel will wrap the incoming buffers into a memory interface on which HLE
* services can operate, and insert a id in the buffer where the vaddr would normally be. The
* service then calls GetMappedBuffer with that id to get the memory interface. On response, like
* real services pushing back the mapped buffer address to unmap it, HLE services push back the
* id of the memory interface and let kernel convert it back to client vaddr. No real unmapping is
* needed in this case, though.
*/
class HLERequestContext {
public:
@ -131,6 +171,12 @@ public:
*/
void AddStaticBuffer(u8 buffer_id, std::vector<u8> data);
/**
* Gets a memory interface by the id from the request command buffer. See the "HLE mapped buffer
* protocol" section in the class documentation for more details.
*/
MappedBuffer& GetMappedBuffer(u32 id_from_cmdbuf);
/// Populates this context with data from the requesting process/thread.
ResultCode PopulateFromIncomingCommandBuffer(const u32_le* src_cmdbuf, Process& src_process,
HandleTable& src_table);
@ -145,6 +191,8 @@ private:
boost::container::small_vector<SharedPtr<Object>, 8> request_handles;
// The static buffers will be created when the IPC request is translated.
std::array<std::vector<u8>, IPC::MAX_STATIC_BUFFERS> static_buffers;
// The mapped buffers will be created when the IPC request is translated
boost::container::small_vector<MappedBuffer, 8> request_mapped_buffers;
};
} // namespace Kernel

8
src/core/hle/service/am/am.cpp
View file

@ -606,7 +606,7 @@ void DeleteContents(Service::Interface* self) {
u8 media_type = rp.Pop<u8>();
u64 title_id = rp.Pop<u64>();
u32 content_count = rp.Pop<u32>();
VAddr content_ids_in = rp.PopMappedBuffer();
VAddr content_ids_in = rp.PopMappedBuffer(nullptr);
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(RESULT_SUCCESS);
@ -620,7 +620,7 @@ void GetProgramList(Service::Interface* self) {
u32 count = rp.Pop<u32>();
u8 media_type = rp.Pop<u8>();
VAddr title_ids_output_pointer = rp.PopMappedBuffer();
VAddr title_ids_output_pointer = rp.PopMappedBuffer(nullptr);
if (!Memory::IsValidVirtualAddress(title_ids_output_pointer) || media_type > 2) {
IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
@ -765,7 +765,7 @@ void ListDataTitleTicketInfos(Service::Interface* self) {
u32 ticket_count = rp.Pop<u32>();
u64 title_id = rp.Pop<u64>();
u32 start_index = rp.Pop<u32>();
VAddr ticket_info_out = rp.PopMappedBuffer();
VAddr ticket_info_out = rp.PopMappedBuffer(nullptr);
VAddr ticket_info_write = ticket_info_out;
for (u32 i = 0; i < ticket_count; i++) {
@ -840,7 +840,7 @@ void GetTicketList(Service::Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 9, 2, 2); // 0x00090082
u32 ticket_list_count = rp.Pop<u32>();
u32 ticket_index = rp.Pop<u32>();
VAddr ticket_tids_out = rp.PopMappedBuffer();
VAddr ticket_tids_out = rp.PopMappedBuffer(nullptr);
IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
rb.Push(RESULT_SUCCESS);

181
src/core/hle/service/fs/archive.cpp
View file

@ -27,6 +27,7 @@
#include "core/file_sys/errors.h"
#include "core/file_sys/file_backend.h"
#include "core/hle/ipc.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/client_port.h"
#include "core/hle/kernel/client_session.h"
#include "core/hle/kernel/handle_table.h"
@ -84,26 +85,28 @@ enum class DirectoryCommand : u32 {
};
File::File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path& path)
: path(path), priority(0), backend(std::move(backend)) {}
: path(path), priority(0), backend(std::move(backend)), ServiceFramework("", 1) {
static const FunctionInfo functions[] = {
{0x080200C2, &File::Read, "Read"},
{0x08030102, &File::Write, "Write"},
{0x08040000, &File::GetSize, "GetSize"},
{0x08050080, &File::SetSize, "SetSize"},
{0x08080000, &File::Close, "Close"},
{0x08090000, &File::Flush, "Flush"},
{0x080A0040, &File::SetPriority, "SetPriority"},
{0x080B0000, &File::GetPriority, "GetPriority"},
{0x080C0000, &File::OpenLinkFile, "OpenLinkFile"},
};
RegisterHandlers(functions);
}
File::~File() {}
void File::HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) {
using Kernel::ClientSession;
using Kernel::ServerSession;
using Kernel::SharedPtr;
u32* cmd_buff = Kernel::GetCommandBuffer();
FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]);
switch (cmd) {
// Read from file...
case FileCommand::Read: {
u64 offset = cmd_buff[1] | ((u64)cmd_buff[2]) << 32;
u32 length = cmd_buff[3];
u32 address = cmd_buff[5];
LOG_TRACE(Service_FS, "Read %s: offset=0x%llx length=%d address=0x%x", GetName().c_str(),
offset, length, address);
void File::Read(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x0802, 3, 2);
u64 offset = rp.Pop<u64>();
u32 length = rp.Pop<u32>();
auto& buffer = rp.PopMappedBuffer();
LOG_TRACE(Service_FS, "Read %s: offset=0x%" PRIx64 " length=0x%08X", GetName().c_str(), offset,
length);
if (offset + length > backend->GetSize()) {
LOG_ERROR(Service_FS, "Reading from out of bounds offset=0x%" PRIx64
@ -111,95 +114,103 @@ void File::HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_ses
offset, length, backend->GetSize());
}
IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
std::vector<u8> data(length);
ResultVal<size_t> read = backend->Read(offset, data.size(), data.data());
if (read.Failed()) {
cmd_buff[1] = read.Code().raw;
return;
}
Memory::WriteBlock(address, data.data(), *read);
cmd_buff[2] = static_cast<u32>(*read);
break;
rb.Push(read.Code());
rb.Push<u32>(0);
} else {
buffer.Write(data.data(), 0, *read);
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(*read);
}
rb.PushMappedBuffer(buffer);
}
// Write to file...
case FileCommand::Write: {
u64 offset = cmd_buff[1] | ((u64)cmd_buff[2]) << 32;
u32 length = cmd_buff[3];
u32 flush = cmd_buff[4];
u32 address = cmd_buff[6];
LOG_TRACE(Service_FS, "Write %s: offset=0x%llx length=%d address=0x%x, flush=0x%x",
GetName().c_str(), offset, length, address, flush);
void File::Write(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x0803, 3, 2);
u64 offset = rp.Pop<u64>();
u32 length = rp.Pop<u32>();
u32 flush = rp.Pop<u32>();
auto& buffer = rp.PopMappedBuffer();
LOG_TRACE(Service_FS, "Write %s: offset=0x%llx length=%d, flush=0x%x", GetName().c_str(),
offset, length, flush);
IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
std::vector<u8> data(length);
Memory::ReadBlock(address, data.data(), data.size());
buffer.Read(data.data(), 0, data.size());
ResultVal<size_t> written = backend->Write(offset, data.size(), flush != 0, data.data());
if (written.Failed()) {
cmd_buff[1] = written.Code().raw;
return;
}
cmd_buff[2] = static_cast<u32>(*written);
break;
rb.Push(written.Code());
rb.Push<u32>(0);
} else {
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(*written);
}
rb.PushMappedBuffer(buffer);
}
case FileCommand::GetSize: {
LOG_TRACE(Service_FS, "GetSize %s", GetName().c_str());
u64 size = backend->GetSize();
cmd_buff[2] = (u32)size;
cmd_buff[3] = size >> 32;
break;
}
void File::GetSize(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x0804, 0, 0);
IPC::RequestBuilder rb = rp.MakeBuilder(3, 0);
rb.Push(RESULT_SUCCESS);
rb.Push(backend->GetSize());
}
case FileCommand::SetSize: {
u64 size = cmd_buff[1] | ((u64)cmd_buff[2] << 32);
LOG_TRACE(Service_FS, "SetSize %s size=%llu", GetName().c_str(), size);
backend->SetSize(size);
break;
}
void File::SetSize(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x0805, 2, 0);
backend->SetSize(rp.Pop<u64>());
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(RESULT_SUCCESS);
}
case FileCommand::Close: {
LOG_TRACE(Service_FS, "Close %s", GetName().c_str());
void File::Close(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x0808, 0, 0);
backend->Close();
break;
}
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(RESULT_SUCCESS);
}
case FileCommand::Flush: {
LOG_TRACE(Service_FS, "Flush");
void File::Flush(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x0809, 0, 0);
backend->Flush();
break;
}
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(RESULT_SUCCESS);
}
case FileCommand::OpenLinkFile: {
void File::SetPriority(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x080A, 1, 0);
priority = rp.Pop<u32>();
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(RESULT_SUCCESS);
}
void File::GetPriority(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x080B, 0, 0);
IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
rb.Push(RESULT_SUCCESS);
rb.Push(priority);
}
void File::OpenLinkFile(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_FS, "(STUBBED) File command OpenLinkFile %s", GetName().c_str());
using Kernel::ClientSession;
using Kernel::ServerSession;
using Kernel::SharedPtr;
IPC::RequestParser rp(ctx, 0x080C, 0, 0);
IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
auto sessions = ServerSession::CreateSessionPair(GetName());
ClientConnected(std::get<SharedPtr<ServerSession>>(sessions));
cmd_buff[3] = Kernel::g_handle_table.Create(std::get<SharedPtr<ClientSession>>(sessions))
.ValueOr(INVALID_HANDLE);
break;
}
case FileCommand::SetPriority: {
priority = cmd_buff[1];
LOG_TRACE(Service_FS, "SetPriority %u", priority);
break;
}
case FileCommand::GetPriority: {
cmd_buff[2] = priority;
LOG_TRACE(Service_FS, "GetPriority");
break;
}
// Unknown command...
default:
LOG_ERROR(Service_FS, "Unknown command=0x%08X!", static_cast<u32>(cmd));
ResultCode error = UnimplementedFunction(ErrorModule::FS);
cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that.
return;
}
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
rb.Push(RESULT_SUCCESS);
rb.PushObjects(std::get<SharedPtr<ClientSession>>(sessions));
}
File::~File() {}
Directory::Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend,
const FileSys::Path& path)
: path(path), backend(std::move(backend)) {}

17
src/core/hle/service/fs/archive.h
View file

@ -10,6 +10,7 @@
#include "core/file_sys/archive_backend.h"
#include "core/hle/kernel/hle_ipc.h"
#include "core/hle/result.h"
#include "core/hle/service/service.h"
namespace FileSys {
class DirectoryBackend;
@ -47,7 +48,9 @@ enum class MediaType : u32 { NAND = 0, SDMC = 1, GameCard = 2 };
typedef u64 ArchiveHandle;
class File final : public Kernel::SessionRequestHandler {
// TODO: File is not a real service, but it can still utilize ServiceFramework::RegisterHandlers.
// Consider splitting ServiceFramework interface.
class File final : public ServiceFramework<File> {
public:
File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path& path);
~File();
@ -60,8 +63,16 @@ public:
u32 priority; ///< Priority of the file. TODO(Subv): Find out what this means
std::unique_ptr<FileSys::FileBackend> backend; ///< File backend interface
protected:
void HandleSyncRequest(Kernel::SharedPtr<Kernel::ServerSession> server_session) override;
private:
void Read(Kernel::HLERequestContext& ctx);
void Write(Kernel::HLERequestContext& ctx);
void GetSize(Kernel::HLERequestContext& ctx);
void SetSize(Kernel::HLERequestContext& ctx);
void Close(Kernel::HLERequestContext& ctx);
void Flush(Kernel::HLERequestContext& ctx);
void SetPriority(Kernel::HLERequestContext& ctx);
void GetPriority(Kernel::HLERequestContext& ctx);
void OpenLinkFile(Kernel::HLERequestContext& ctx);
};
class Directory final : public Kernel::SessionRequestHandler {

84
src/tests/core/hle/kernel/hle_ipc.cpp
View file

@ -136,26 +136,58 @@ TEST_CASE("HLERequestContext::PopulateFromIncomingCommandBuffer", "[core][kernel
REQUIRE(process->vm_manager.UnmapRange(target_address, buffer->size()) == RESULT_SUCCESS);
}
SECTION("translates mixed params") {
SECTION("translates MappedBuffer descriptors") {
auto buffer = std::make_shared<std::vector<u8>>(Memory::PAGE_SIZE);
std::fill(buffer->begin(), buffer->end(), 0xCE);
std::fill(buffer->begin(), buffer->end(), 0xCD);
VAddr target_address = 0x10000000;
auto result = process->vm_manager.MapMemoryBlock(target_address, buffer, 0, buffer->size(),
MemoryState::Private);
const u32_le input[]{
IPC::MakeHeader(0, 0, 2), IPC::MappedBufferDesc(buffer->size(), IPC::R), target_address,
};
context.PopulateFromIncomingCommandBuffer(input, *process, handle_table);
std::vector<u8> other_buffer(buffer->size());
context.GetMappedBuffer(0).Read(other_buffer.data(), 0, buffer->size());
CHECK(other_buffer == *buffer);
REQUIRE(process->vm_manager.UnmapRange(target_address, buffer->size()) == RESULT_SUCCESS);
}
SECTION("translates mixed params") {
auto buffer_static = std::make_shared<std::vector<u8>>(Memory::PAGE_SIZE);
std::fill(buffer_static->begin(), buffer_static->end(), 0xCE);
auto buffer_mapped = std::make_shared<std::vector<u8>>(Memory::PAGE_SIZE);
std::fill(buffer_mapped->begin(), buffer_mapped->end(), 0xDF);
VAddr target_address_static = 0x10000000;
auto result = process->vm_manager.MapMemoryBlock(
target_address_static, buffer_static, 0, buffer_static->size(), MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
VAddr target_address_mapped = 0x20000000;
result = process->vm_manager.MapMemoryBlock(target_address_mapped, buffer_mapped, 0,
buffer_mapped->size(), MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
auto a = MakeObject();
const u32_le input[]{
IPC::MakeHeader(0, 2, 6),
IPC::MakeHeader(0, 2, 8),
0x12345678,
0xABCDEF00,
IPC::MoveHandleDesc(1),
handle_table.Create(a).Unwrap(),
IPC::CallingPidDesc(),
0,
IPC::StaticBufferDesc(buffer->size(), 0),
target_address,
IPC::StaticBufferDesc(buffer_static->size(), 0),
target_address_static,
IPC::MappedBufferDesc(buffer_mapped->size(), IPC::R),
target_address_mapped,
};
context.PopulateFromIncomingCommandBuffer(input, *process, handle_table);
@ -165,9 +197,15 @@ TEST_CASE("HLERequestContext::PopulateFromIncomingCommandBuffer", "[core][kernel
CHECK(output[2] == 0xABCDEF00);
CHECK(context.GetIncomingHandle(output[4]) == a);
CHECK(output[6] == process->process_id);
CHECK(context.GetStaticBuffer(0) == *buffer);
CHECK(context.GetStaticBuffer(0) == *buffer_static);
std::vector<u8> other_buffer(buffer_mapped->size());
context.GetMappedBuffer(0).Read(other_buffer.data(), 0, buffer_mapped->size());
CHECK(other_buffer == *buffer_mapped);
REQUIRE(process->vm_manager.UnmapRange(target_address, buffer->size()) == RESULT_SUCCESS);
REQUIRE(process->vm_manager.UnmapRange(target_address_static, buffer_static->size()) ==
RESULT_SUCCESS);
REQUIRE(process->vm_manager.UnmapRange(target_address_mapped, buffer_mapped->size()) ==
RESULT_SUCCESS);
}
}
@ -275,6 +313,38 @@ TEST_CASE("HLERequestContext::WriteToOutgoingCommandBuffer", "[core][kernel]") {
REQUIRE(process->vm_manager.UnmapRange(target_address, output_buffer->size()) ==
RESULT_SUCCESS);
}
SECTION("translates StaticBuffer descriptors") {
std::vector<u8> input_buffer(Memory::PAGE_SIZE);
std::fill(input_buffer.begin(), input_buffer.end(), 0xAB);
auto output_buffer = std::make_shared<std::vector<u8>>(Memory::PAGE_SIZE);
VAddr target_address = 0x10000000;
auto result = process->vm_manager.MapMemoryBlock(
target_address, output_buffer, 0, output_buffer->size(), MemoryState::Private);
REQUIRE(result.Code() == RESULT_SUCCESS);
const u32_le input_cmdbuff[]{
IPC::MakeHeader(0, 0, 2), IPC::MappedBufferDesc(output_buffer->size(), IPC::W),
target_address,
};
context.PopulateFromIncomingCommandBuffer(input_cmdbuff, *process, handle_table);
context.GetMappedBuffer(0).Write(input_buffer.data(), 0, input_buffer.size());
input[0] = IPC::MakeHeader(0, 0, 2);
input[1] = IPC::MappedBufferDesc(output_buffer->size(), IPC::W);
input[2] = 0;
context.WriteToOutgoingCommandBuffer(output, *process, handle_table);
CHECK(output[1] == IPC::MappedBufferDesc(output_buffer->size(), IPC::W));
CHECK(output[2] == target_address);
CHECK(*output_buffer == input_buffer);
REQUIRE(process->vm_manager.UnmapRange(target_address, output_buffer->size()) ==
RESULT_SUCCESS);
}
}
} // namespace Kernel