[edk2-devel][PATCH v2 1/2] UefiCpuPkg: Update SEC_IDT_TABLE struct

[Ni, Ray]

I don't see any change comparing this against v1.

Reviewed-by: Ray Ni <ray.ni at intel.com>


> -----Original Message-----
> From: Kuo, Ted <ted.kuo at intel.com>
> Sent: Tuesday, July 12, 2022 5:31 PM
> To: devel at edk2.groups.io
> Cc: Chiu, Chasel <chasel.chiu at intel.com>; Desimone, Nathaniel L <nathaniel.l.desimone at intel.com>; Ni, Ray
> <ray.ni at intel.com>; S, Ashraf Ali <ashraf.ali.s at intel.com>; De, Debkumar <debkumar.de at intel.com>; Han, Harry
> <harry.han at intel.com>; West, Catharine <catharine.west at intel.com>
> Subject: [edk2-devel][PATCH v2 1/2] UefiCpuPkg: Update SEC_IDT_TABLE struct
> 
> 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 at intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone at intel.com>
> Cc: Ray Ni <ray.ni at intel.com>
> Cc: Ashraf Ali S <ashraf.ali.s at intel.com>
> Cc: Debkumar De <debkumar.de at intel.com>
> Cc: Harry Han <harry.han at intel.com>
> Cc: Catharine West <catharine.west at intel.com>
> Signed-off-by: Ted Kuo <ted.kuo at 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



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