diff --git a/reactos/include/reactos/drivers/acpi/acpi.h b/reactos/include/reactos/drivers/acpi/acpi.h
index c9289b8402e..e4231fefe32 100644
--- a/reactos/include/reactos/drivers/acpi/acpi.h
+++ b/reactos/include/reactos/drivers/acpi/acpi.h
@@ -40,11 +40,26 @@ typedef struct _ACPI_BIOS_MULTI_NODE
 #define BOOT_SIGNATURE 'TOOB'
 #define SRAT_SIGNATURE 'TARS'
 #define WDRT_SIGNATURE 'TRDW'
+#define BGRT_SIGNATURE  0x54524742      	// "BGRT"
 
 //
 // FADT Flags
 //
-#define ACPI_TMR_VAL_EXT 0x100
+#define ACPI_TMR_VAL_EXT 	0x100
+
+//
+// BGRT Flags
+//
+#define BGRT_STATUS_IMAGE_VALID 0x01
+
+//
+// BGRT Image Types
+//
+typedef enum _BGRT_IMAGE_TYPE
+{
+    BgrtImageTypeBitmap,
+    BgrtImageTypeMax
+} BGRT_IMAGE_TYPE, *PBGRT_IMAGE_TYPE;
 
 //
 // ACPI Generic Register Address
@@ -67,8 +82,12 @@ typedef struct  _RSDP
     ULONGLONG Signature;
     UCHAR Checksum;
     UCHAR OEMID[6];
-    UCHAR Reserved[1];
+    UCHAR Revision;
     ULONG RsdtAddress;
+    ULONG Length;
+    PHYSICAL_ADDRESS XsdtAddress;
+    UCHAR XChecksum;
+    UCHAR Reserved[3];
 } RSDP;
 typedef RSDP *PRSDP;
 
@@ -219,4 +238,15 @@ typedef struct _ACPI_SRAT
     ULONG Reserved[2];
 } ACPI_SRAT, *PACPI_SRAT;
 
+typedef struct _BGRT_TABLE
+{
+    DESCRIPTION_HEADER Header;
+    USHORT Version;
+    UCHAR Status;
+    UCHAR ImageType;
+    ULONGLONG LogoAddress;
+    ULONG OffsetX;
+    ULONG OffsetY;
+} BGRT_TABLE, *PBGRT_TABLE;
+
 /* EOF */