1 files changed, 88 insertions, 0 deletions
diff --git a/Lesson_27/UefiLessonsPkg/SmbiosInfo/SmbiosInfo.c b/Lesson_27/UefiLessonsPkg/SmbiosInfo/SmbiosInfo.c
new file mode 100644
index 0000000..b75026d
--- /dev/null
+++ b/Lesson_27/UefiLessonsPkg/SmbiosInfo/SmbiosInfo.c
@@ -0,0 +1,88 @@
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+
+#include <Library/BaseMemoryLib.h>
+#include <Protocol/Smbios.h>
+
+CHAR8* GetRecordString(EFI_SMBIOS_TABLE_HEADER* Record, UINTN number)
+{
+  if (!number)
+    return "";
+
+  CHAR8* String = (CHAR8*)Record + Record->Length;
+  UINTN i=1;
+  while (i < number) {
+    String = String + AsciiStrSize(String);
+    i++;
+  }
+  return String;
+}
+
+EFI_STATUS
+EFIAPI
+UefiMain (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  for (UINTN i=0; i<SystemTable->NumberOfTableEntries; i++) {
+    if (CompareGuid(&(SystemTable->ConfigurationTable[i].VendorGuid), &gEfiSmbiosTableGuid)) {
+      Print(L"SMBIOS table is placed at %p\n\n", SystemTable->ConfigurationTable[i].VendorTable);
+    }
+  } 
+
+  EFI_SMBIOS_PROTOCOL* SmbiosProtocol;
+  EFI_STATUS Status = gBS->LocateProtocol (
+                  &gEfiSmbiosProtocolGuid,
+                  NULL,
+                  (VOID**)&SmbiosProtocol
+                  );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  EFI_SMBIOS_HANDLE SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
+  EFI_SMBIOS_TABLE_HEADER* Record;
+  Status = SmbiosProtocol->GetNext(SmbiosProtocol,
+                                   &SmbiosHandle,
+                                   NULL,
+                                   &Record,
+                                   NULL);
+  while (!EFI_ERROR(Status)) {
+    Print (L"SMBIOS Type %d \n", Record->Type);
+    switch (Record->Type) {
+      case EFI_SMBIOS_TYPE_BIOS_INFORMATION: {
+        SMBIOS_TABLE_TYPE0* Type0Record = (SMBIOS_TABLE_TYPE0*) Record;
+        Print(L"\tVendor=%a\n", GetRecordString(Record, Type0Record->Vendor));
+        Print(L"\tBiosVersion=%a\n", GetRecordString(Record, Type0Record->BiosVersion));
+        Print(L"\tBiosReleaseDate=%a\n", GetRecordString(Record, Type0Record->BiosReleaseDate));
+        Print(L"\tBiosSegment=0x%x\n", Type0Record->BiosSegment);
+        Print(L"\tSystemBiosMajorRelease=0x%x\n", Type0Record->SystemBiosMajorRelease);
+        Print(L"\tSystemBiosMinorRelease=0x%x\n", Type0Record->SystemBiosMinorRelease);
+        break;
+      }
+      case EFI_SMBIOS_TYPE_SYSTEM_INFORMATION: {
+        SMBIOS_TABLE_TYPE1* Type1Record = (SMBIOS_TABLE_TYPE1*) Record;
+        Print(L"\tManufacturer=%a\n", GetRecordString(Record, Type1Record->Manufacturer));
+        Print(L"\tProductName=%a\n", GetRecordString(Record, Type1Record->ProductName));
+        Print(L"\tVersion=%a\n", GetRecordString(Record, Type1Record->Version));
+        Print(L"\tSerialNumber=%a\n", GetRecordString(Record, Type1Record->SerialNumber));
+        Print(L"\tUUID=%g\n", Type1Record->Uuid);
+        Print(L"\tWakeUpType=%d\n", Type1Record->WakeUpType);
+        Print(L"\tSKUNumber=%a\n", GetRecordString(Record, Type1Record->SKUNumber));
+        Print(L"\tFamily=%a\n", GetRecordString(Record, Type1Record->Family));
+        break;
+      }
+      default:
+        Print(L"\tTODO: Parsing for this table is not ready yet\n");
+        break;
+    }
+    Status = SmbiosProtocol->GetNext(SmbiosProtocol,
+                                     &SmbiosHandle,
+                                     NULL,
+                                     &Record,
+                                     NULL);
+  }
+  
+  return EFI_SUCCESS;
+}