sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use IA32_IDT_GATE_DESCRIPTOR defined in BaseLib instead of local struct INTERRUPT_GATE_DESCRIPTOR.

Browse Source 
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13948 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lzeng14
2012-11-16 01:24:31 +00:00
parent 54f8fc6d75
commit 68cc1ba3b6
2 changed files with 26 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/IA32/SetIdtEntry.c
View File

@@ -15,22 +15,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "ScriptExecute.h"
//
// INTERRUPT_GATE_DESCRIPTOR and SetIdtEntry () are used to setup IDT to do debug
//
#pragma pack(1)
typedef struct {
UINT16 OffsetLow;
UINT16 SegmentSelector;
UINT16 Attributes;
UINT16 OffsetHigh;
} INTERRUPT_GATE_DESCRIPTOR;
#define INTERRUPT_GATE_ATTRIBUTE 0x8e00
#pragma pack()
/**
Set a IDT entry for interrupt vector 3 for debug purpose.
@@ -42,7 +27,7 @@ SetIdtEntry (
IN ACPI_S3_CONTEXT *AcpiS3Context
)
{
INTERRUPT_GATE_DESCRIPTOR *IdtEntry;
IA32_IDT_GATE_DESCRIPTOR *IdtEntry;
IA32_DESCRIPTOR *IdtDescriptor;
UINTN S3DebugBuffer;
@@ -63,11 +48,12 @@ SetIdtEntry (
//
S3DebugBuffer = (UINTN) (AcpiS3Context->S3DebugBufferAddress);
if (*(UINTN *)S3DebugBuffer != (UINTN) -1) {
IdtEntry = (INTERRUPT_GATE_DESCRIPTOR *)(IdtDescriptor->Base + (3 * sizeof (INTERRUPT_GATE_DESCRIPTOR)));
IdtEntry->OffsetLow = (UINT16)S3DebugBuffer;
IdtEntry->SegmentSelector = (UINT16)AsmReadCs ();;
IdtEntry->Attributes = (UINT16)INTERRUPT_GATE_ATTRIBUTE;
IdtEntry->OffsetHigh = (UINT16)(S3DebugBuffer >> 16);
IdtEntry = (IA32_IDT_GATE_DESCRIPTOR *)(IdtDescriptor->Base + (3 * sizeof (IA32_IDT_GATE_DESCRIPTOR)));
IdtEntry->Bits.OffsetLow = (UINT16)S3DebugBuffer;
IdtEntry->Bits.Selector = (UINT16)AsmReadCs ();
IdtEntry->Bits.Reserved_0 = 0;
IdtEntry->Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
IdtEntry->Bits.OffsetHigh = (UINT16)(S3DebugBuffer >> 16);
}
);
}