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-rw-r--r--UefiLessonsPkg/PCIRomInfo/PCIRomInfo.c380
-rw-r--r--UefiLessonsPkg/PCIRomInfo/PCIRomInfo.inf22
2 files changed, 402 insertions, 0 deletions
diff --git a/UefiLessonsPkg/PCIRomInfo/PCIRomInfo.c b/UefiLessonsPkg/PCIRomInfo/PCIRomInfo.c
new file mode 100644
index 0000000..7531192
--- /dev/null
+++ b/UefiLessonsPkg/PCIRomInfo/PCIRomInfo.c
@@ -0,0 +1,380 @@
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+
+#include <Protocol/PciIo.h>
+#include <Library/MemoryAllocationLib.h>
+#include <IndustryStandard/Pci.h>
+#include <Library/ShellLib.h>
+#include <Library/PrintLib.h>
+
+#include <IndustryStandard/PeImage.h>
+
+
+#define DESCRIPTOR_STR_MAX_SIZE 200
+#define BLOCK_READ_SIZE (1024*4)
+
+VOID ToLowerASCII(CHAR8* Str, UINTN Size)
+{
+ for (UINT8 i=0; i<Size; i++) {
+ if ((Str[i]>='A')&&(Str[i]<='Z')) {
+ Str[i]+=32;
+ }
+ }
+}
+
+EFI_STATUS FindPCIDevDescription(UINT16 VendorId,
+ UINT16 DeviceId,
+ CHAR16* VendorDesc,
+ CHAR16* DeviceDesc,
+ UINTN DescBufferSize)
+{
+ EFI_STATUS Status = ShellFileExists(L"pci.ids");
+ if (EFI_ERROR(Status))
+ {
+ Print(L"No file pci.ids: %r\n", Status);
+ return Status;
+ }
+
+ SHELL_FILE_HANDLE FileHandle;
+ Status = ShellOpenFileByName(L"pci.ids",
+ &FileHandle,
+ EFI_FILE_MODE_READ,
+ 0);
+ if (EFI_ERROR(Status))
+ {
+ Print(L"Can't open file pci.ids: %r\n", Status);
+ return Status;
+ }
+
+ UINT64 FileSize;
+ Status = ShellGetFileSize(FileHandle, &FileSize);
+ if (EFI_ERROR(Status))
+ {
+ Print(L"Can't get file size for file pci.ids: %r\n", Status);
+ goto end;
+ }
+
+ CHAR8 VendorStr[5];
+ CHAR8 DeviceStr[5];
+ AsciiValueToStringS(VendorStr,
+ 5,
+ RADIX_HEX | PREFIX_ZERO,
+ VendorId,
+ 4);
+ AsciiValueToStringS(DeviceStr,
+ 5,
+ RADIX_HEX | PREFIX_ZERO,
+ DeviceId,
+ 4);
+ ToLowerASCII(VendorStr, 4);
+ ToLowerASCII(DeviceStr, 4);
+
+ CHAR8 Buffer[BLOCK_READ_SIZE];
+ UINTN Size;
+ UINT64 FilePos = 0;
+ BOOLEAN Vendor_found = FALSE;
+ BOOLEAN Device_found = FALSE;
+ while (TRUE)
+ {
+ Size = BLOCK_READ_SIZE;
+ Status = ShellReadFile(FileHandle, &Size, Buffer);
+ if (EFI_ERROR(Status))
+ {
+ Print(L"Can't read file pci.ids: %r\n", Status);
+ goto end;
+ }
+ UINTN StrStart = 0;
+ UINTN StrEnd = 0;
+ for (UINTN i=0; i<Size; i++) {
+ if (Buffer[i]=='\n') {
+ StrEnd=i;
+ if (!Vendor_found){
+ // 0123456 7
+ //\nXXXX |<desc>|\n
+ if ((StrEnd - StrStart) > 7) {
+ if ((Buffer[StrStart+1]==VendorStr[0]) &&
+ (Buffer[StrStart+2]==VendorStr[1]) &&
+ (Buffer[StrStart+3]==VendorStr[2]) &&
+ (Buffer[StrStart+4]==VendorStr[3])) {
+ Buffer[StrEnd] = 0;
+ UnicodeSPrintAsciiFormat(VendorDesc, DescBufferSize, "%a", &Buffer[StrStart+1+4+2]);
+ Vendor_found = TRUE;
+ }
+ }
+ } else {
+ // 0 1234567 8
+ //\n\tXXXX |<desc>|\n
+ if ((StrEnd - StrStart) > 8) {
+ if ((Buffer[StrStart+1]=='\t') &&
+ (Buffer[StrStart+2]==DeviceStr[0]) &&
+ (Buffer[StrStart+3]==DeviceStr[1]) &&
+ (Buffer[StrStart+4]==DeviceStr[2]) &&
+ (Buffer[StrStart+5]==DeviceStr[3])) {
+ Buffer[StrEnd] = 0;
+ UnicodeSPrintAsciiFormat(DeviceDesc, DescBufferSize, "%a", &Buffer[StrStart+1+1+4+2]);
+ Device_found = TRUE;
+ break;
+ }
+ }
+ }
+ StrStart = StrEnd;
+ }
+ }
+
+ if (FilePos+Size >= FileSize) {
+ break;
+ }
+ FilePos += StrEnd;
+ Status = ShellSetFilePosition(FileHandle, FilePos);
+ if (EFI_ERROR(Status))
+ {
+ Print(L"Can't set file position pci.ids: %r\n", Status);
+ goto end;
+ }
+ }
+
+end:
+ if (!Vendor_found) {
+ UnicodeSPrint(VendorDesc, DescBufferSize, L"Undefined");
+ }
+ if (!Device_found) {
+ UnicodeSPrint(DeviceDesc, DescBufferSize, L"Undefined");
+ }
+ ShellCloseFile(&FileHandle);
+
+ return Status;
+}
+
+
+UINT64 PciConfigurationAddress(UINT8 Bus,
+ UINT8 Device,
+ UINT8 Function,
+ UINT32 Register)
+{
+ UINT64 Address = (((UINT64)Bus) << 24) + (((UINT64)Device) << 16) + (((UINT64)Function) << 8);
+ if (Register & 0xFFFFFF00) {
+ Address += (((UINT64)Register) << 32);
+ } else {
+ Address += (((UINT64)Register) << 0);
+ }
+ return Address;
+}
+
+VOID PrintOptionROM(VOID *RomImage, UINT64 RomSize)
+{
+ Print(L"Has OptionROM at memory %p-%p\n", RomImage, (UINT8*)RomImage + RomSize);
+ PCI_EXPANSION_ROM_HEADER* RomHeader = (PCI_EXPANSION_ROM_HEADER*) RomImage;
+ UINTN RomImageIndex = 1;
+ while (TRUE)
+ {
+ if (RomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {
+ Print(L"Error! OptionROM has a wrong signature\n");
+ return;
+ }
+ PCI_DATA_STRUCTURE* RomImage = (PCI_DATA_STRUCTURE*)((UINT8*)RomHeader + RomHeader->PcirOffset);
+ if ((((CHAR8)((RomImage->Signature >> 0) & 0xFF)) != 'P') &&
+ (((CHAR8)((RomImage->Signature >> 8) & 0xFF)) != 'C') &&
+ (((CHAR8)((RomImage->Signature >> 16) & 0xFF)) != 'I') &&
+ (((CHAR8)((RomImage->Signature >> 24) & 0xFF)) != 'R')) {
+ Print(L"Error! OptionROM image has wrong signature\n");
+ return;
+ }
+ Print(L"---Code Image %d---\n", RomImageIndex);
+ Print(L"Address: %p-%p\n", RomHeader, (UINT8*)RomHeader + (RomImage->ImageLength)*512);
+ Print(L"PCIR address: %p\n", RomImage);
+ Print(L"VendorId: %04x, DeviceId: %04x\n", RomImage->VendorId, RomImage->DeviceId);
+ Print(L"Type: ");
+ switch (RomImage->CodeType) {
+ case 0x00:
+ Print(L"IA-32, PC-AT compatible\n");
+ break;
+ case 0x01:
+ Print(L"Open Firmware standard for PCI\n");
+ break;
+ case 0x02:
+ Print(L"Hewlett-Packard PA RISC\n");
+ break;
+ case 0x03:
+ Print(L"EFI Image\n");
+ break;
+ default:
+ Print(L"Unknown\n");
+ break;
+ }
+ if (RomImage->CodeType == 0x03) {
+ EFI_PCI_EXPANSION_ROM_HEADER* EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER*) RomHeader;
+ if (EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) {
+ Print(L"Subsystem: ");
+ switch (EfiRomHeader->EfiSubsystem) {
+ case EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION:
+ Print(L"EFI Application\n");
+ break;
+ case EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER:
+ Print(L"EFI Boot Service Driver\n");
+ break;
+ case EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER:
+ Print(L"EFI Runtime Driver\n");
+ break;
+ case EFI_IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER:
+ Print(L"EFI SAL Runtime Driver\n");
+ break;
+ default:
+ Print(L"Unknown\n");
+ break;
+ }
+ Print(L"Machine type: ");
+ switch (EfiRomHeader->EfiMachineType) {
+ case IMAGE_FILE_MACHINE_I386:
+ Print(L"IA-32\n");
+ break;
+ case IMAGE_FILE_MACHINE_IA64:
+ Print(L"Itanium\n");
+ break;
+ case IMAGE_FILE_MACHINE_EBC:
+ Print(L"EFI Byte Code (EBC)\n");
+ break;
+ case IMAGE_FILE_MACHINE_X64:
+ Print(L"X64\n");
+ break;
+ case IMAGE_FILE_MACHINE_ARMTHUMB_MIXED:
+ Print(L"ARM\n");
+ break;
+ case IMAGE_FILE_MACHINE_ARM64:
+ Print(L"ARM 64-bit\n");
+ break;
+ case IMAGE_FILE_MACHINE_RISCV32:
+ Print(L"RISCV32\n");
+ break;
+ case IMAGE_FILE_MACHINE_RISCV64:
+ Print(L"RISCV64\n");
+ break;
+ case IMAGE_FILE_MACHINE_RISCV128:
+ Print(L"RISCV128\n");
+ break;
+ default:
+ Print(L"Unknown\n");
+ break;
+ }
+ switch (EfiRomHeader->CompressionType) {
+ case EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED:
+ Print(L"Compressed following the UEFI Compression Algorithm\n");
+ break;
+ case 0:
+ Print(L"Uncompressed\n");
+ break;
+ default:
+ Print(L"Unknown compression type\n");
+ break;
+ }
+ } else {
+ Print(L"EFI signature is incorrect!\n");
+ }
+ }
+ if ((RomImage->Indicator) & 0x80) {
+ break;
+ }
+ RomHeader = (PCI_EXPANSION_ROM_HEADER*)((UINT8*) RomHeader + (RomImage->ImageLength)*512);
+ RomImageIndex++;
+ }
+ Print(L"------------------\n");
+}
+
+EFI_STATUS PrintPCI(EFI_PCI_IO_PROTOCOL* PciIo)
+{
+ UINTN SegmentNumber;
+ UINTN BusNumber;
+ UINTN DeviceNumber;
+ UINTN FunctionNumber;
+ EFI_STATUS Status = PciIo->GetLocation(PciIo,
+ &SegmentNumber,
+ &BusNumber,
+ &DeviceNumber,
+ &FunctionNumber);
+ if (EFI_ERROR(Status)) {
+ Print(L"Error in getting PCI location: %r\n", Status);
+ return Status;
+ }
+
+ PCI_DEVICE_INDEPENDENT_REGION PCIConfHdr;
+ Status = PciIo->Pci.Read(PciIo,
+ EfiPciIoWidthUint8,
+ 0,
+ sizeof(PCI_DEVICE_INDEPENDENT_REGION),
+ &PCIConfHdr);
+
+ if (EFI_ERROR(Status)) {
+ Print(L"Error in reading PCI conf space: %r\n", Status);
+ return Status;
+ }
+
+ if (PciIo->RomSize) {
+ Print(L"%02x:%02x.%02x - Vendor:%04x, Device:%04x", BusNumber,
+ DeviceNumber,
+ FunctionNumber,
+ PCIConfHdr.VendorId,
+ PCIConfHdr.DeviceId);
+
+ CHAR16 VendorDesc[DESCRIPTOR_STR_MAX_SIZE];
+ CHAR16 DeviceDesc[DESCRIPTOR_STR_MAX_SIZE];
+ Status = FindPCIDevDescription(PCIConfHdr.VendorId,
+ PCIConfHdr.DeviceId,
+ VendorDesc,
+ DeviceDesc,
+ DESCRIPTOR_STR_MAX_SIZE);
+ if (!EFI_ERROR(Status)) {
+ Print(L": %s, %s\n", VendorDesc, DeviceDesc);
+ } else {
+ Print(L"\n");
+ }
+ PrintOptionROM(PciIo->RomImage, PciIo->RomSize);
+ }
+ return Status;
+}
+
+EFI_STATUS
+EFIAPI
+UefiMain (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ UINTN HandleCount;
+ EFI_HANDLE *HandleBuffer;
+ Status = gBS->LocateHandleBuffer(
+ ByProtocol,
+ &gEfiPciIoProtocolGuid,
+ NULL,
+ &HandleCount,
+ &HandleBuffer
+ );
+ if (EFI_ERROR (Status)) {
+ Print(L"Can't locate EFI_PCI_IO_PROTOCOL: %r\n", Status);
+ return Status;
+ }
+
+ //Print(L"Number of PCI devices in the system: %d\n", HandleCount);
+ EFI_PCI_IO_PROTOCOL* PciIo;
+ for (UINTN Index = 0; Index < HandleCount; Index++) {
+ Status = gBS->OpenProtocol (
+ HandleBuffer[Index],
+ &gEfiPciIoProtocolGuid,
+ (VOID **)&PciIo,
+ ImageHandle,
+ NULL,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR(Status)) {
+ Print(L"Can't open protocol: %r\n", Status);
+ return Status;
+ }
+ Status = PrintPCI(PciIo);
+ if (EFI_ERROR(Status)) {
+ Print(L"Error in PCI printing\n");
+ }
+
+ }
+ FreePool(HandleBuffer);
+
+ return EFI_SUCCESS;
+}
diff --git a/UefiLessonsPkg/PCIRomInfo/PCIRomInfo.inf b/UefiLessonsPkg/PCIRomInfo/PCIRomInfo.inf
new file mode 100644
index 0000000..b098b26
--- /dev/null
+++ b/UefiLessonsPkg/PCIRomInfo/PCIRomInfo.inf
@@ -0,0 +1,22 @@
+[Defines]
+ INF_VERSION = 1.25
+ BASE_NAME = PCIRomInfo
+ FILE_GUID = 76f1798f-533f-49a2-b94c-96ab3dfebea0
+ MODULE_TYPE = UEFI_APPLICATION
+ VERSION_STRING = 1.0
+ ENTRY_POINT = UefiMain
+
+[Sources]
+ PCIRomInfo.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ ShellPkg/ShellPkg.dec
+
+[LibraryClasses]
+ UefiApplicationEntryPoint
+ UefiLib
+ ShellLib
+
+[Protocols]
+ gEfiPciIoProtocolGuid
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-22 13:55:39 +0000