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hle: Initial implementation of NX service framework and IPC.

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This commit is contained in:
bunnei 2017-10-14 22:18:42 -04:00
parent 12c7469d81
commit 960a1416de
21 changed files with 578 additions and 863 deletions
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124
src/core/hle/ipc_helpers.h
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@ -19,24 +19,17 @@ class RequestHelperBase {
protected:
Kernel::HLERequestContext* context = nullptr;
u32* cmdbuf;
ptrdiff_t index = 1;
Header header;
ptrdiff_t index = 0;
public:
RequestHelperBase(Kernel::HLERequestContext& context, Header desired_header)
: context(&context), cmdbuf(context.CommandBuffer()), header(desired_header) {}
RequestHelperBase(u32* command_buffer) : cmdbuf(command_buffer) {}
RequestHelperBase(u32* command_buffer, Header command_header)
: cmdbuf(command_buffer), header(command_header) {}
/// Returns the total size of the request in words
size_t TotalSize() const {
return 1 /* command header */ + header.normal_params_size + header.translate_params_size;
}
RequestHelperBase(Kernel::HLERequestContext& context)
: context(&context), cmdbuf(context.CommandBuffer()) {}
void ValidateHeader() {
DEBUG_ASSERT_MSG(index == TotalSize(), "Operations do not match the header (cmd 0x%x)",
header.raw);
// DEBUG_ASSERT_MSG(index == TotalSize(), "Operations do not match the header (cmd 0x%x)",
// header.raw);
}
void Skip(unsigned size_in_words, bool set_to_null) {
@ -46,46 +39,51 @@ public:
}
/**
* @brief Retrieves the address of a static buffer, used when a buffer is needed for output
* @param buffer_id The index of the static buffer
* @param data_size If non-null, will store the size of the buffer
* Aligns the current position forward to a 16-byte boundary, padding with zeros. Jumps forward
* by 16-bytes at a minimum.
*/
VAddr PeekStaticBuffer(u8 buffer_id, size_t* data_size = nullptr) const {
u32* static_buffer = cmdbuf + Kernel::kStaticBuffersOffset / sizeof(u32) + buffer_id * 2;
if (data_size)
*data_size = StaticBufferDescInfo{static_buffer[0]}.size;
return static_buffer[1];
void AlignWithPadding() {
Skip(4 - (index & 3), true);
}
unsigned GetCurrentOffset() const {
return static_cast<unsigned>(index);
}
};
class RequestBuilder : public RequestHelperBase {
public:
RequestBuilder(Kernel::HLERequestContext& context, Header command_header)
: RequestHelperBase(context, command_header) {
// From this point we will start overwriting the existing command buffer, so it's safe to
// release all previous incoming Object pointers since they won't be usable anymore.
RequestBuilder(u32* command_buffer) : RequestHelperBase(command_buffer) {}
RequestBuilder(Kernel::HLERequestContext& context, unsigned normal_params_size,
u32 num_handles_to_copy = 0, u32 num_handles_to_move = 0)
: RequestHelperBase(context) {
memset(cmdbuf, 0, 64);
context.ClearIncomingObjects();
cmdbuf[0] = header.raw;
IPC::CommandHeader header{};
header.data_size.Assign(normal_params_size * sizeof(u32));
if (num_handles_to_copy || num_handles_to_move) {
header.enable_handle_descriptor.Assign(1);
}
PushRaw(header);
if (header.enable_handle_descriptor) {
IPC::HandleDescriptorHeader handle_descriptor_header{};
handle_descriptor_header.num_handles_to_copy.Assign(num_handles_to_copy);
handle_descriptor_header.num_handles_to_move.Assign(num_handles_to_move);
PushRaw(handle_descriptor_header);
Skip(num_handles_to_copy + num_handles_to_move, true);
}
AlignWithPadding();
IPC::DataPayloadHeader data_payload_header{};
data_payload_header.magic = 0x4f434653;
PushRaw(data_payload_header);
}
RequestBuilder(Kernel::HLERequestContext& context, u16 command_id, unsigned normal_params_size,
unsigned translate_params_size)
: RequestBuilder(
context, Header{MakeHeader(command_id, normal_params_size, translate_params_size)}) {}
RequestBuilder(u32* command_buffer, Header command_header)
: RequestHelperBase(command_buffer, command_header) {
cmdbuf[0] = header.raw;
}
explicit RequestBuilder(u32* command_buffer, u32 command_header)
: RequestBuilder(command_buffer, Header{command_header}) {}
RequestBuilder(u32* command_buffer, u16 command_id, unsigned normal_params_size,
unsigned translate_params_size)
: RequestBuilder(command_buffer,
MakeHeader(command_id, normal_params_size, translate_params_size)) {}
// Validate on destruction, as there shouldn't be any case where we don't want it
~RequestBuilder() {
ValidateHeader();
@ -131,7 +129,6 @@ inline void RequestBuilder::Push(u32 value) {
template <typename T>
void RequestBuilder::PushRaw(const T& value) {
static_assert(std::is_trivially_copyable<T>(), "Raw types should be trivially copyable");
std::memcpy(cmdbuf + index, &value, sizeof(T));
index += (sizeof(T) + 3) / 4; // round up to word length
}
@ -203,36 +200,20 @@ inline void RequestBuilder::PushMappedBuffer(VAddr buffer_vaddr, size_t size,
class RequestParser : public RequestHelperBase {
public:
RequestParser(Kernel::HLERequestContext& context, Header desired_header)
: RequestHelperBase(context, desired_header) {}
RequestParser(u32* command_buffer) : RequestHelperBase(command_buffer) {}
RequestParser(Kernel::HLERequestContext& context, u16 command_id, unsigned normal_params_size,
unsigned translate_params_size)
: RequestParser(context,
Header{MakeHeader(command_id, normal_params_size, translate_params_size)}) {
RequestParser(Kernel::HLERequestContext& context) : RequestHelperBase(context) {
ASSERT_MSG(context.GetDataPayloadOffset(), "context is incomplete");
Skip(context.GetDataPayloadOffset(), false);
}
RequestParser(u32* command_buffer, Header command_header)
: RequestHelperBase(command_buffer, command_header) {}
explicit RequestParser(u32* command_buffer, u32 command_header)
: RequestParser(command_buffer, Header{command_header}) {}
RequestParser(u32* command_buffer, u16 command_id, unsigned normal_params_size,
unsigned translate_params_size)
: RequestParser(command_buffer,
MakeHeader(command_id, normal_params_size, translate_params_size)) {}
RequestBuilder MakeBuilder(u32 normal_params_size, u32 translate_params_size,
bool validateHeader = true) {
if (validateHeader)
RequestBuilder MakeBuilder(u32 normal_params_size, u32 num_handles_to_copy,
u32 num_handles_to_move, bool validate_header = true) {
if (validate_header) {
ValidateHeader();
Header builderHeader{MakeHeader(static_cast<u16>(header.command_id), normal_params_size,
translate_params_size)};
if (context != nullptr)
return {*context, builderHeader};
else
return {cmdbuf, builderHeader};
}
return {*context, normal_params_size, num_handles_to_copy, num_handles_to_move};
}
template <typename T>
@ -342,7 +323,6 @@ inline u32 RequestParser::Pop() {
template <typename T>
void RequestParser::PopRaw(T& value) {
static_assert(std::is_trivially_copyable<T>(), "Raw types should be trivially copyable");
std::memcpy(&value, cmdbuf + index, sizeof(T));
index += (sizeof(T) + 3) / 4; // round up to word length
}