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[XBOXKRNL/IO] - add structs for NtDeviceIoControlFile

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- Add structs for NtDeviceIoControlFile
This commit is contained in:
The-Little-Wolf
2026-08-02 07:39:10 -07:00
committed by Radosław Gliński
parent da47dfaacf
commit 364dc1d770
2 changed files with 27 additions and 10 deletions
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2
src/xenia/kernel/kernel.h
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@@ -19,6 +19,8 @@ namespace kernel {
// IOCTL_, used by NtDeviceIoControlFile
constexpr uint32_t X_IOCTL_DISK_GET_DRIVE_GEOMETRY = 0x70000;
constexpr uint32_t X_IOCTL_DISK_UNK =
0x70042; // used when accessing storage in dash
constexpr uint32_t X_IOCTL_DISK_GET_PARTITION_INFO = 0x74004;
// MEM_*, used by NtAllocateVirtualMemory

35
src/xenia/kernel/xboxkrnl/xboxkrnl_io.cc
View File

@@ -388,10 +388,10 @@ dword_result_t NtWriteFile_entry(dword_t file_handle, dword_t event_handle,
}
DECLARE_XBOXKRNL_EXPORT1(NtWriteFile, kFileSystem, kImplemented);
dword_result_t NtCreateIoCompletion_entry(lpdword_t out_handle,
dword_t desired_access,
lpvoid_t object_attribs,
dword_t num_concurrent_threads) {
dword_result_t NtCreateIoCompletion_entry(
lpdword_t out_handle, dword_t desired_access,
pointer_t<X_OBJECT_ATTRIBUTES> object_attribs,
dword_t num_concurrent_threads) {
auto completion = new XIOCompletion(kernel_state());
if (out_handle) {
*out_handle = completion->handle();
@@ -641,6 +641,19 @@ dword_result_t FscSetCacheElementCount_entry(dword_t unk_0, dword_t unk_1) {
return X_STATUS_SUCCESS;
}
DECLARE_XBOXKRNL_EXPORT1(FscSetCacheElementCount, kFileSystem, kStub);
struct X_DRIVE_GEOMETRY {
xe::be<uint32_t> sector_count;
xe::be<uint32_t> sector_size;
};
static_assert_size(X_DRIVE_GEOMETRY, 0x8);
struct X_PARTITION_INFO {
xe::be<uint64_t> unk;
xe::be<uint64_t> total_size;
};
static_assert_size(X_PARTITION_INFO, 0x10);
// todo: this should fill in the io status block and queue the apc
dword_result_t NtDeviceIoControlFile_entry(
dword_t handle, dword_t event_handle, dword_t apc_routine,
@@ -653,19 +666,21 @@ dword_result_t NtDeviceIoControlFile_entry(
constexpr uint32_t cache_size = 0xFF000;
if (io_control_code == X_IOCTL_DISK_GET_DRIVE_GEOMETRY) {
if (output_buffer_len < 0x8) {
if (output_buffer_len < sizeof(X_DRIVE_GEOMETRY)) {
assert_always();
return X_STATUS_BUFFER_TOO_SMALL;
}
xe::store_and_swap<uint32_t>(output_buffer, cache_size / 512);
xe::store_and_swap<uint32_t>(output_buffer + 4, 512);
auto buffer = output_buffer.as<X_DRIVE_GEOMETRY*>();
buffer->sector_count = cache_size / 0x200;
buffer->sector_size = 0x200; // 0x200, 0x1000, 0x4000
} else if (io_control_code == X_IOCTL_DISK_GET_PARTITION_INFO) {
if (output_buffer_len < 0x10) {
if (output_buffer_len < sizeof(X_PARTITION_INFO)) {
assert_always();
return X_STATUS_BUFFER_TOO_SMALL;
}
xe::store_and_swap<uint64_t>(output_buffer, 0);
xe::store_and_swap<uint64_t>(output_buffer + 8, cache_size);
auto buffer = output_buffer.as<X_PARTITION_INFO*>();
buffer->unk = 0;
buffer->total_size = cache_size;
} else {
XELOGD("NtDeviceIoControlFile(0x{:X}) - unhandled IOCTL!",
uint32_t(io_control_code));