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| author | Jiaxin Wu <jiaxin.wu@intel.com> | 2024-09-02 15:22:00 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-09-06 08:41:49 +0000 |
| commit | b437b5ca4c1a6725897dfd0740de6ef20cacd226 (patch) | |
| tree | 46bec6035cac1e6fbc5ddbb00f9e1d504cac8736 | |
| parent | b4820f2d6591357d7e6f35b5e5340300d3be790f (diff) | |
| download | edk2-b437b5ca4c1a6725897dfd0740de6ef20cacd226.zip edk2-b437b5ca4c1a6725897dfd0740de6ef20cacd226.tar.gz edk2-b437b5ca4c1a6725897dfd0740de6ef20cacd226.tar.bz2 | |
UefiCpuPkg/PiSmmCpuDxeSmm: Remove RestrictedMemoryAccess check for MM CPU
The PcdCpuSmmRestrictedMemoryAccess is declared as either a dynamic or fixed
PCD. It is not recommended for use in the MM CPU driver.
Furthermore, IsRestrictedMemoryAccess() is only needed for SMM. Therefor,
there is no need for MM to consume the PcdCpuSmmRestrictedMemoryAccess.
So, this patch is to add the SMM specific file for its own functions, with
the change, the dependency of the MM CPU driver on
PcdCpuSmmRestrictedMemoryAccess can be removed.
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c | 14 | ||||
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmFuncsArchDxeSmm.c | 22 | ||||
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf | 2 | ||||
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuStandaloneMm.inf | 3 | ||||
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/X64/PageTbl.c | 14 | ||||
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmmFuncsArchDxeSmm.c | 22 |
6 files changed, 46 insertions, 31 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c index 1294485..e1ce36b 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c @@ -229,17 +229,3 @@ RestoreCr2 ( {
return;
}
-
-/**
- Return whether access to non-SMRAM is restricted.
-
- @retval TRUE Access to non-SMRAM is restricted.
- @retval FALSE Access to non-SMRAM is not restricted.
-**/
-BOOLEAN
-IsRestrictedMemoryAccess (
- VOID
- )
-{
- return TRUE;
-}
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmFuncsArchDxeSmm.c b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmFuncsArchDxeSmm.c new file mode 100644 index 0000000..21f7992 --- /dev/null +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmFuncsArchDxeSmm.c @@ -0,0 +1,22 @@ +/** @file
+
+Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "PiSmmCpuCommon.h"
+
+/**
+ Return whether access to non-SMRAM is restricted.
+
+ @retval TRUE Access to non-SMRAM is restricted.
+ @retval FALSE Access to non-SMRAM is not restricted.
+**/
+BOOLEAN
+IsRestrictedMemoryAccess (
+ VOID
+ )
+{
+ return TRUE;
+}
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf index d8eda78..8c4be7e 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf @@ -56,6 +56,7 @@ Ia32/SmiEntry.nasm
Ia32/SmiException.nasm
Ia32/Cet.nasm
+ Ia32/SmmFuncsArchDxeSmm.c
[Sources.X64]
X64/PageTbl.c
@@ -65,6 +66,7 @@ X64/SmiEntry.nasm
X64/SmiException.nasm
X64/Cet.nasm
+ X64/SmmFuncsArchDxeSmm.c
[Packages]
MdePkg/MdePkg.dec
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuStandaloneMm.inf b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuStandaloneMm.inf index 13b8ce1..d0ae5e7 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuStandaloneMm.inf +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuStandaloneMm.inf @@ -131,6 +131,3 @@ [Depex]
TRUE
-
-[Pcd.X64]
- gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmRestrictedMemoryAccess ## CONSUMES
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/PageTbl.c b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/PageTbl.c index 4043e26..160e33b 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/PageTbl.c +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/PageTbl.c @@ -866,17 +866,3 @@ RestoreCr2 ( {
AsmWriteCr2 (Cr2);
}
-
-/**
- Return whether access to non-SMRAM is restricted.
-
- @retval TRUE Access to non-SMRAM is restricted.
- @retval FALSE Access to non-SMRAM is not restricted.
-**/
-BOOLEAN
-IsRestrictedMemoryAccess (
- VOID
- )
-{
- return PcdGetBool (PcdCpuSmmRestrictedMemoryAccess);
-}
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmmFuncsArchDxeSmm.c b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmmFuncsArchDxeSmm.c new file mode 100644 index 0000000..e812a43 --- /dev/null +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmmFuncsArchDxeSmm.c @@ -0,0 +1,22 @@ +/** @file
+
+Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "PiSmmCpuCommon.h"
+
+/**
+ Return whether access to non-SMRAM is restricted.
+
+ @retval TRUE Access to non-SMRAM is restricted.
+ @retval FALSE Access to non-SMRAM is not restricted.
+**/
+BOOLEAN
+IsRestrictedMemoryAccess (
+ VOID
+ )
+{
+ return PcdGetBool (PcdCpuSmmRestrictedMemoryAccess);
+}
|