diff options
Diffstat (limited to 'MdePkg/Include/Library/BaseLib.h')
| -rw-r--r-- | MdePkg/Include/Library/BaseLib.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h index 6998171bd5..213bc0c0e1 100644 --- a/MdePkg/Include/Library/BaseLib.h +++ b/MdePkg/Include/Library/BaseLib.h @@ -4933,6 +4933,28 @@ typedef union { } IA32_CR4;
///
+/// Byte packed structure for a segment descriptor in a GDT/LDT.
+///
+typedef union {
+ struct {
+ UINT32 LimitLow:16;
+ UINT32 BaseLow:16;
+ UINT32 BaseMid:8;
+ UINT32 Type:4;
+ UINT32 S:1;
+ UINT32 DPL:2;
+ UINT32 P:1;
+ UINT32 LimitHigh:4;
+ UINT32 AVL:1;
+ UINT32 L:1;
+ UINT32 DB:1;
+ UINT32 G:1;
+ UINT32 BaseHigh:8;
+ } Bits;
+ UINT64 Uint64;
+} IA32_SEGMENT_DESCRIPTOR;
+
+///
/// Byte packed structure for an IDTR, GDTR, LDTR descriptor.
///
#pragma pack (1)
|