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

IntelFsp2Pkg: Update SEC_IDT_TABLE struct

Browse Source 
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3957
The reserved IDT table size in SecCore is too small for X64. Changed the type
of IdtTable in SEC_IDT_TABLE from UINT64 to IA32_IDT_GATE_DESCRIPTOR to have
sufficient size reserved in IdtTable for X64.

Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Ashraf Ali S <ashraf.ali.s@intel.com>
Signed-off-by: Ted Kuo <ted.kuo@intel.com>
Reviewed-by: Chasel Chiu <chasel.chiu@intel.com>
This commit is contained in:
Kuo, Ted
2022-07-12 02:30:58 -07:00
committed by mergify[bot]
parent 9ab389c01b
commit 470206ba7f
4 changed files with 21 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
IntelFsp2Pkg/FspSecCore/SecFsp.c
View File

@@ -16,19 +16,20 @@
@return FSP specific IDT gate descriptor.
**/
UINT64
IA32_IDT_GATE_DESCRIPTOR
FspGetExceptionHandler (
IN UINT64 IdtEntryTemplate
)
{
UINT32 Entry;
UINT64 ExceptionHandler;
IA32_IDT_GATE_DESCRIPTOR ExceptionHandler;
IA32_IDT_GATE_DESCRIPTOR *IdtGateDescriptor;
FSP_INFO_HEADER *FspInfoHeader;
ZeroMem ((VOID *)&ExceptionHandler, sizeof (IA32_IDT_GATE_DESCRIPTOR));
FspInfoHeader = (FSP_INFO_HEADER *)(UINTN)AsmGetFspInfoHeader ();
ExceptionHandler = IdtEntryTemplate;
IdtGateDescriptor = (IA32_IDT_GATE_DESCRIPTOR *)&ExceptionHandler;
*(UINT64 *) &ExceptionHandler = IdtEntryTemplate;
IdtGateDescriptor = &ExceptionHandler;
Entry = (IdtGateDescriptor->Bits.OffsetHigh << 16) | IdtGateDescriptor->Bits.OffsetLow;
Entry = FspInfoHeader->ImageBase + FspInfoHeader->ImageSize - (~Entry + 1);
IdtGateDescriptor->Bits.OffsetHigh = (UINT16)(Entry >> 16);
@@ -200,11 +201,11 @@ FspGlobalDataInit (
(PeiFspData->FspInfoHeader->ImageRevision >> 24) & 0xFF, \
(PeiFspData->FspInfoHeader->ImageRevision >> 16) & 0xFF, \
(PeiFspData->FspInfoHeader->HeaderRevision >= 6) ? \
(((PeiFspData->FspInfoHeader->ImageRevision >> 8) & 0xFF) | (PeiFspData->FspInfoHeader->ExtendedImageRevision & 0xFF00)) :\
((PeiFspData->FspInfoHeader->ImageRevision >> 8) & 0xFF), \
(((PeiFspData->FspInfoHeader->ImageRevision >> 8) & 0xFF) | (PeiFspData->FspInfoHeader->ExtendedImageRevision & 0xFF00)) : \
((PeiFspData->FspInfoHeader->ImageRevision >> 8) & 0xFF), \
(PeiFspData->FspInfoHeader->HeaderRevision >= 6) ? \
((PeiFspData->FspInfoHeader->ImageRevision & 0xFF) | ((PeiFspData->FspInfoHeader->ExtendedImageRevision & 0xFF) << 8)): \
(PeiFspData->FspInfoHeader->ImageRevision & 0xFF)
((PeiFspData->FspInfoHeader->ImageRevision & 0xFF) | ((PeiFspData->FspInfoHeader->ExtendedImageRevision & 0xFF) << 8)) : \
(PeiFspData->FspInfoHeader->ImageRevision & 0xFF)
));
}