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UefiCpuPkg/CpuDxe: Move GDT structures into CpuGdt.h

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We'll want to use the structures for AP startup.

Note: It seems previously we were not using '#pragma pack ()' in
      CpuGdt.c.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16348 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jordan Justen
2014-11-13 18:25:10 +00:00
committed by jljusten
parent fab82c1873
commit a1e8986d97
2 changed files with 73 additions and 51 deletions
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52
UefiCpuPkg/CpuDxe/CpuGdt.c
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@@ -14,57 +14,7 @@
**/
#include "CpuDxe.h"
//
// Local structure definitions
//
#pragma pack (1)
//
// Global Descriptor Entry structures
//
typedef struct _GDT_ENTRY {
UINT16 Limit15_0;
UINT16 Base15_0;
UINT8 Base23_16;
UINT8 Type;
UINT8 Limit19_16_and_flags;
UINT8 Base31_24;
} GDT_ENTRY;
typedef
struct _GDT_ENTRIES {
GDT_ENTRY Null;
GDT_ENTRY Linear;
GDT_ENTRY LinearCode;
GDT_ENTRY SysData;
GDT_ENTRY SysCode;
GDT_ENTRY LinearCode64;
GDT_ENTRY Spare4;
GDT_ENTRY Spare5;
} GDT_ENTRIES;
#define NULL_SEL OFFSET_OF (GDT_ENTRIES, Null)
#define LINEAR_SEL OFFSET_OF (GDT_ENTRIES, Linear)
#define LINEAR_CODE_SEL OFFSET_OF (GDT_ENTRIES, LinearCode)
#define SYS_DATA_SEL OFFSET_OF (GDT_ENTRIES, SysData)
#define SYS_CODE_SEL OFFSET_OF (GDT_ENTRIES, SysCode)
#define LINEAR_CODE64_SEL OFFSET_OF (GDT_ENTRIES, LinearCode64)
#define SPARE4_SEL OFFSET_OF (GDT_ENTRIES, Spare4)
#define SPARE5_SEL OFFSET_OF (GDT_ENTRIES, Spare5)
#if defined (MDE_CPU_IA32)
#define CPU_CODE_SEL LINEAR_CODE_SEL
#define CPU_DATA_SEL LINEAR_SEL
#elif defined (MDE_CPU_X64)
#define CPU_CODE_SEL LINEAR_CODE64_SEL
#define CPU_DATA_SEL LINEAR_SEL
#else
#error CPU type not supported for CPU GDT initialization!
#endif
#include "CpuGdt.h"
//
// Global descriptor table (GDT) Template