From: "Kuo, Ted" <ted.kuo@intel.com>
To: devel@edk2.groups.io
Cc: Chasel Chiu <chasel.chiu@intel.com>,
Nate DeSimone <nathaniel.l.desimone@intel.com>,
Ray Ni <ray.ni@intel.com>, Ashraf Ali S <ashraf.ali.s@intel.com>,
Debkumar De <debkumar.de@intel.com>,
Harry Han <harry.han@intel.com>,
Catharine West <catharine.west@intel.com>
Subject: [edk2-devel][PATCH v2 1/2] UefiCpuPkg: Update SEC_IDT_TABLE struct
Date: Tue, 12 Jul 2022 17:30:57 +0800 [thread overview]
Message-ID: <ade96994a375550d247c641e2aaf115310cff906.1657618158.git.ted.kuo@intel.com> (raw)
In-Reply-To: <cover.1657618158.git.ted.kuo@intel.com>
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. dff
Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Ashraf Ali S <ashraf.ali.s@intel.com>
Cc: Debkumar De <debkumar.de@intel.com>
Cc: Harry Han <harry.han@intel.com>
Cc: Catharine West <catharine.west@intel.com>
Signed-off-by: Ted Kuo <ted.kuo@intel.com>
---
UefiCpuPkg/SecCore/SecMain.c | 1 +
UefiCpuPkg/SecCore/SecMain.h | 4 ++--
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/UefiCpuPkg/SecCore/SecMain.c b/UefiCpuPkg/SecCore/SecMain.c
index 4edf0ce972..fe03d8019a 100644
--- a/UefiCpuPkg/SecCore/SecMain.c
+++ b/UefiCpuPkg/SecCore/SecMain.c
@@ -211,6 +211,7 @@ SecStartup (
IdtTableInStack.PeiService = 0;
for (Index = 0; Index < SEC_IDT_ENTRY_COUNT; Index++) {
+ ZeroMem ((VOID *)&IdtTableInStack.IdtTable[Index], sizeof (IA32_IDT_GATE_DESCRIPTOR));
CopyMem ((VOID *)&IdtTableInStack.IdtTable[Index], (VOID *)&mIdtEntryTemplate, sizeof (UINT64));
}
diff --git a/UefiCpuPkg/SecCore/SecMain.h b/UefiCpuPkg/SecCore/SecMain.h
index 189fcf9326..1be57c2248 100644
--- a/UefiCpuPkg/SecCore/SecMain.h
+++ b/UefiCpuPkg/SecCore/SecMain.h
@@ -43,8 +43,8 @@ typedef struct _SEC_IDT_TABLE {
// Note: For IA32, only the 4 bytes immediately preceding IDT is used to store
// EFI_PEI_SERVICES**
//
- UINT64 PeiService;
- UINT64 IdtTable[SEC_IDT_ENTRY_COUNT];
+ UINT64 PeiService;
+ IA32_IDT_GATE_DESCRIPTOR IdtTable[SEC_IDT_ENTRY_COUNT];
} SEC_IDT_TABLE;
/**
--
2.35.3.windows.1
next prev parent reply other threads:[~2022-07-12 9:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-12 9:30 [edk2-devel][PATCH v2 0/2] Update SEC_IDT_TABLE struct to reserve sufficient size in IdtTable for both IA32 and X64 Kuo, Ted
2022-07-12 9:30 ` Kuo, Ted [this message]
2022-07-13 1:39 ` [edk2-devel][PATCH v2 1/2] UefiCpuPkg: Update SEC_IDT_TABLE struct Ni, Ray
2022-07-12 9:30 ` [edk2-devel][PATCH v2 2/2] IntelFsp2Pkg: " Kuo, Ted
2022-07-12 18:34 ` Chiu, Chasel
2022-07-14 18:38 ` [edk2-devel][PATCH v2 0/2] Update SEC_IDT_TABLE struct to reserve sufficient size in IdtTable for both IA32 and X64 Chiu, Chasel
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