[edk2-devel] [Patch] MdeModulePkg/PiSmmCore: Use unique structure signatures
Michael D Kinney
michael.d.kinney at intel.com
Thu Aug 1 20:06:08 UTC 2019
Hi Eric and Ray,
Adding Eric Dong to Cc.
Have you had a chance to review this patch
in the SMM/MM area of the MdeModulePkg.
Thanks,
Mike
> -----Original Message-----
> From: devel at edk2.groups.io
> [mailto:devel at edk2.groups.io] On Behalf Of Michael D
> Kinney
> Sent: Friday, June 28, 2019 1:19 PM
> To: devel at edk2.groups.io
> Cc: Wang, Jian J <jian.j.wang at intel.com>; Wu, Hao A
> <hao.a.wu at intel.com>; Ni, Ray <ray.ni at intel.com>; Zeng,
> Star <star.zeng at intel.com>; Yao, Jiewen
> <jiewen.yao at intel.com>
> Subject: [edk2-devel] [Patch] MdeModulePkg/PiSmmCore:
> Use unique structure signatures
>
> https://bugzilla.tianocore.org/show_bug.cgi?id=1948
>
> Update the data structure signatures in the PiSmmCore
> to be unique. Some of the signatures are the same as
> those used by the DxeCore. For example, the memory pool
> head and tail structures use the same signature in the
> PiSmmCore and DxeCore. This means the use of the wrong
> FreePool API will not be noticed at the time FreePool
> is called and a failure can occur much later. By
> making the signatures unique, misuse of an API is
> caught at that time the API is called.
>
> Cc: Jian J Wang <jian.j.wang at intel.com>
> Cc: Hao A Wu <hao.a.wu at intel.com>
> Cc: Ray Ni <ray.ni at intel.com>
> Cc: Star Zeng <star.zeng at intel.com>
> Cc: Jiewen Yao <jiewen.yao at intel.com>
> Signed-off-by: Michael D Kinney
> <michael.d.kinney at intel.com>
> ---
> MdeModulePkg/Core/PiSmmCore/PiSmmCore.h | 14 +++++++--
> -----
> 1 file changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/MdeModulePkg/Core/PiSmmCore/PiSmmCore.h
> b/MdeModulePkg/Core/PiSmmCore/PiSmmCore.h
> index da01a1f07d..0908e7f4e9 100644
> --- a/MdeModulePkg/Core/PiSmmCore/PiSmmCore.h
> +++ b/MdeModulePkg/Core/PiSmmCore/PiSmmCore.h
> @@ -2,7 +2,7 @@
> The internal header file includes the common header
> files, defines
> internal structure and functions used by SmmCore
> module.
>
> - Copyright (c) 2009 - 2018, Intel Corporation. All
> rights reserved.<BR>
> + Copyright (c) 2009 - 2019, Intel Corporation. All
> rights
> + reserved.<BR>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
> **/
> @@ -140,7 +140,7 @@ typedef struct {
> EFI_LOADED_IMAGE_PROTOCOL SmmLoadedImage;
> } EFI_SMM_DRIVER_ENTRY;
>
> -#define EFI_HANDLE_SIGNATURE
> SIGNATURE_32('h','n','d','l')
> +#define EFI_HANDLE_SIGNATURE
> SIGNATURE_32('s','h','d','l')
>
> ///
> /// IHANDLE - contains a list of protocol handles @@ -
> 156,7 +156,7 @@ typedef struct {
>
> #define ASSERT_IS_HANDLE(a) ASSERT((a)->Signature ==
> EFI_HANDLE_SIGNATURE)
>
> -#define PROTOCOL_ENTRY_SIGNATURE
> SIGNATURE_32('p','r','t','e')
> +#define PROTOCOL_ENTRY_SIGNATURE
> SIGNATURE_32('s','p','t','e')
>
> ///
> /// PROTOCOL_ENTRY - each different protocol has 1
> entry in the protocol @@ -175,7 +175,7 @@ typedef
> struct {
> LIST_ENTRY Notify;
> } PROTOCOL_ENTRY;
>
> -#define PROTOCOL_INTERFACE_SIGNATURE
> SIGNATURE_32('p','i','f','c')
> +#define PROTOCOL_INTERFACE_SIGNATURE
> SIGNATURE_32('s','p','i','f')
>
> ///
> /// PROTOCOL_INTERFACE - each protocol installed on a
> handle is tracked @@ -195,7 +195,7 @@ typedef struct {
> VOID *Interface;
> } PROTOCOL_INTERFACE;
>
> -#define PROTOCOL_NOTIFY_SIGNATURE
> SIGNATURE_32('p','r','t','n')
> +#define PROTOCOL_NOTIFY_SIGNATURE
> SIGNATURE_32('s','p','t','n')
>
> ///
> /// PROTOCOL_NOTIFY - used for each register
> notification for a protocol @@ -1245,7 +1245,7 @@
> extern LIST_ENTRY mSmmMemoryMap; // #define
> MAX_POOL_INDEX (MAX_POOL_SHIFT - MIN_POOL_SHIFT + 1)
>
> -#define POOL_HEAD_SIGNATURE
> SIGNATURE_32('p','h','d','0')
> +#define POOL_HEAD_SIGNATURE
> SIGNATURE_32('s','p','h','d')
>
> typedef struct {
> UINT32 Signature;
> @@ -1254,7 +1254,7 @@ typedef struct {
> UINTN Size;
> } POOL_HEADER;
>
> -#define POOL_TAIL_SIGNATURE
> SIGNATURE_32('p','t','a','l')
> +#define POOL_TAIL_SIGNATURE
> SIGNATURE_32('s','p','t','l')
>
> typedef struct {
> UINT32 Signature;
> --
> 2.21.0.windows.1
>
>
>
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