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| author | Michael Kinney <michael.d.kinney@intel.com> | 2015-11-17 05:04:08 +0000 |
|---|---|---|
| committer | vanjeff <vanjeff@Edk2> | 2015-11-17 05:04:08 +0000 |
| commit | b6d5be554045c818072df05636aa0e897c1b18b2 (patch) | |
| tree | f328356971e0057c173f5ecd7ba320b25ac9b0fe /UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h | |
| parent | fb0d7d0169376f20b98ded3a79e59f59015910ad (diff) | |
| download | edk2-platforms-b6d5be554045c818072df05636aa0e897c1b18b2.tar.xz | |
UefiCpuPkg: Add PiSmmCpuDxeSmm module no IA32/X64 files
Add module that initializes a CPU for the SMM environment and
installs the first level SMI handler. This module along with the
SMM IPL and SMM Core provide the services required for
DXE_SMM_DRIVERS to register hardware and software SMI handlers.
CPU specific features are abstracted through the SmmCpuFeaturesLib
Platform specific features are abstracted through the
SmmCpuPlatformHookLib
Several PCDs are added to enable/disable features and configure
settings for the PiSmmCpuDxeSmm module
Changes between [PATCH v1] and [PATCH v2]:
1) Swap PTE init order for QEMU compatibility.
Current PTE initialization algorithm works on HW but breaks QEMU
emulator. Update the PTE initialization order to be compatible
with both.
2) Update comment block that describes 32KB SMBASE alignment requirement
to match contents of Intel(R) 64 and IA-32 Architectures Software
Developer's Manual
3) Remove BUGBUG comment and call to ClearSmi() that is not required.
SMI should be cleared by root SMI handler.
(Sync patch r18645 from main trunk.)
[jeff.fan@intel.com: Fix code style issues reported by ECC]
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
[pbonzini@redhat.com: InitPaging: prepare PT before filling in PDE]
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/branches/UDK2015@18840 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h')
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h new file mode 100644 index 0000000000..4548467458 --- /dev/null +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h @@ -0,0 +1,134 @@ +/** @file
+SMM profile header file.
+
+Copyright (c) 2012 - 2015, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _SMM_PROFILE_H_
+#define _SMM_PROFILE_H_
+
+#include "SmmProfileInternal.h"
+
+///
+/// MSR Register Index
+///
+#define MSR_IA32_MISC_ENABLE 0x1A0
+
+//
+// External functions
+//
+
+/**
+ Initialize processor environment for SMM profile.
+
+ @param CpuIndex The index of the processor.
+
+**/
+VOID
+ActivateSmmProfile (
+ IN UINTN CpuIndex
+ );
+
+/**
+ Initialize SMM profile in SMM CPU entry point.
+
+ @param[in] Cr3 The base address of the page tables to use in SMM.
+
+**/
+VOID
+InitSmmProfile (
+ UINT32 Cr3
+ );
+
+/**
+ Increase SMI number in each SMI entry.
+
+**/
+VOID
+SmmProfileRecordSmiNum (
+ VOID
+ );
+
+/**
+ The Page fault handler to save SMM profile data.
+
+ @param Rip The RIP when exception happens.
+ @param ErrorCode The Error code of exception.
+
+**/
+VOID
+SmmProfilePFHandler (
+ UINTN Rip,
+ UINTN ErrorCode
+ );
+
+/**
+ Updates page table to make some memory ranges (like system memory) absent
+ and make some memory ranges (like MMIO) present and execute disable. It also
+ update 2MB-page to 4KB-page for some memory ranges.
+
+**/
+VOID
+SmmProfileStart (
+ VOID
+ );
+
+/**
+ Page fault IDT handler for SMM Profile.
+
+**/
+VOID
+EFIAPI
+PageFaultIdtHandlerSmmProfile (
+ VOID
+ );
+
+
+/**
+ Check if XD feature is supported by a processor.
+
+**/
+VOID
+CheckFeatureSupported (
+ VOID
+ );
+
+/**
+ Enable XD feature.
+
+**/
+VOID
+ActivateXd (
+ VOID
+ );
+
+/**
+ Update page table according to protected memory ranges and the 4KB-page mapped memory ranges.
+
+**/
+VOID
+InitPaging (
+ VOID
+ );
+
+/**
+ Check if XD and BTS features are supported by all processors.
+
+**/
+VOID
+CheckProcessorFeature (
+ VOID
+ );
+
+extern BOOLEAN mXdSupported;
+extern BOOLEAN mXdEnabled;
+
+#endif // _SMM_PROFILE_H_
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