From: "Wu, Hao A" <hao.a.wu@intel.com>
To: Kun Qin <kuqin12@gmail.com>,
"devel@edk2.groups.io" <devel@edk2.groups.io>
Cc: "Wang, Jian J" <jian.j.wang@intel.com>,
"Dong, Eric" <eric.dong@intel.com>, "Ni, Ray" <ray.ni@intel.com>
Subject: Re: [PATCH v1 4/5] MdeModulePkg: SmiHandlerProfileInfo: Updated MessageLength calculation
Date: Fri, 11 Jun 2021 07:47:00 +0000 [thread overview]
Message-ID: <BN8PR11MB366632715A9060B86E5642C3CA349@BN8PR11MB3666.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20210610014259.1151-5-kuqin12@gmail.com>
> -----Original Message-----
> From: Kun Qin <kuqin12@gmail.com>
> Sent: Thursday, June 10, 2021 9:43 AM
> To: devel@edk2.groups.io
> Cc: Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>;
> Dong, Eric <eric.dong@intel.com>; Ni, Ray <ray.ni@intel.com>
> Subject: [PATCH v1 4/5] MdeModulePkg: SmiHandlerProfileInfo: Updated
> MessageLength calculation
>
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3398
>
> This change replaced the calculation of communication buffer size from
> explicitly adding the size of each member with the OFFSET macro function.
> This will make the structure field defition change transparent to consumers.
>
> Cc: Jian J Wang <jian.j.wang@intel.com>
> Cc: Hao A Wu <hao.a.wu@intel.com>
> Cc: Eric Dong <eric.dong@intel.com>
> Cc: Ray Ni <ray.ni@intel.com>
>
> Signed-off-by: Kun Qin <kuqin12@gmail.com>
> ---
> MdeModulePkg/Application/SmiHandlerProfileInfo/SmiHandlerProfileInfo.c
> | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git
> a/MdeModulePkg/Application/SmiHandlerProfileInfo/SmiHandlerProfileInfo
> .c
> b/MdeModulePkg/Application/SmiHandlerProfileInfo/SmiHandlerProfileInfo
> .c
> index 4153074b7a80..56d80d1a9ce1 100644
> ---
> a/MdeModulePkg/Application/SmiHandlerProfileInfo/SmiHandlerProfileInfo
> .c
> +++
> b/MdeModulePkg/Application/SmiHandlerProfileInfo/SmiHandlerProfileIn
> +++ fo.c
> @@ -116,7 +116,9 @@ GetSmiHandlerProfileDatabase(
> CommGetInfo->Header.ReturnStatus = (UINT64)-1;
> CommGetInfo->DataSize = 0;
>
> - CommSize = sizeof(EFI_GUID) + sizeof(UINTN) + CommHeader-
> >MessageLength;
> + // BZ3398: Make MessageLength the same size in
> EFI_MM_COMMUNICATE_HEADER for both IA32 and X64.
Similar comments as in patch 3/5.
Best Regards,
Hao Wu
> + // The CommHeader->MessageLength contains a definitive value, thus
> UINTN cast is safe here.
> + CommSize = OFFSET_OF(EFI_SMM_COMMUNICATE_HEADER, Data) +
> + (UINTN)CommHeader->MessageLength;
> Status = SmmCommunication->Communicate(SmmCommunication,
> CommBuffer, &CommSize);
> if (EFI_ERROR(Status)) {
> Print(L"SmiHandlerProfile: SmmCommunication - %r\n", Status); @@ -
> 149,7 +151,9 @@ GetSmiHandlerProfileDatabase(
> CommGetData->Header.DataLength = sizeof(*CommGetData);
> CommGetData->Header.ReturnStatus = (UINT64)-1;
>
> - CommSize = sizeof(EFI_GUID) + sizeof(UINTN) + CommHeader-
> >MessageLength;
> + // BZ3398: Make MessageLength the same size in
> EFI_MM_COMMUNICATE_HEADER for both IA32 and X64.
> + // The CommHeader->MessageLength contains a definitive value, thus
> UINTN cast is safe here.
> + CommSize = OFFSET_OF(EFI_SMM_COMMUNICATE_HEADER, Data) +
> + (UINTN)CommHeader->MessageLength;
> Buffer = (UINT8 *)CommHeader + CommSize;
> Size -= CommSize;
>
> --
> 2.31.1.windows.1
next prev parent reply other threads:[~2021-06-11 7:47 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 1:42 [PATCH v1 0/5] EDK2 Code First: PI Specification: Update EFI_MM_COMMUNICATE_HEADER Kun Qin
2021-06-10 1:42 ` [PATCH v1 1/5] EDK2 Code First: PI Specification: EFI_MM_COMMUNICATE_HEADER Update Kun Qin
2021-06-11 7:46 ` [edk2-devel] " Wu, Hao A
2021-06-15 20:51 ` Kun Qin
2021-06-16 1:15 ` Wu, Hao A
2021-06-24 0:53 ` Kun Qin
2021-06-24 3:26 ` [EXTERNAL] " Bret Barkelew
2021-06-28 6:18 ` Wu, Hao A
2021-06-10 1:42 ` [PATCH v1 2/5] MdeModulePkg: PiSmmIpl: Update MessageLength calculation for MmCommunicate Kun Qin
2021-06-11 7:46 ` Wu, Hao A
2021-06-10 1:42 ` [PATCH v1 3/5] MdeModulePkg: MemoryProfileInfo: Updated MessageLength calculation Kun Qin
2021-06-11 7:46 ` Wu, Hao A
2021-06-11 21:29 ` Kun Qin
2021-06-14 23:20 ` [edk2-devel] " Wu, Hao A
2021-06-10 1:42 ` [PATCH v1 4/5] MdeModulePkg: SmiHandlerProfileInfo: " Kun Qin
2021-06-11 7:47 ` Wu, Hao A [this message]
2021-06-10 1:42 ` [PATCH v1 5/5] MdePkg: MmCommunication: Extend MessageLength field size to UINT64 Kun Qin
2021-06-16 7:02 ` [edk2-devel] [PATCH v1 0/5] EDK2 Code First: PI Specification: Update EFI_MM_COMMUNICATE_HEADER Marvin Häuser
2021-06-16 20:58 ` Kun Qin
2021-06-18 9:37 ` Marvin Häuser
2021-06-22 15:34 ` Laszlo Ersek
2021-06-23 6:54 ` Marvin Häuser
2021-06-23 15:26 ` Laszlo Ersek
2021-06-24 0:24 ` Kun Qin
2021-06-24 8:00 ` Marvin Häuser
2021-06-24 15:25 ` Michael D Kinney
2021-06-25 18:47 ` Kun Qin
2021-06-28 14:57 ` Laszlo Ersek
2021-06-28 15:43 ` Marvin Häuser
2021-06-29 6:49 ` [EXTERNAL] " Bret Barkelew
2021-06-29 8:58 ` Marvin Häuser
2021-06-29 15:59 ` Bret Barkelew
2021-06-29 17:28 ` Michael D Kinney
2021-06-29 23:10 ` Kun Qin
2021-06-30 1:07 ` Michael D Kinney
2021-06-30 7:56 ` Kun Qin
2021-06-29 17:22 ` Michael D Kinney
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