diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3Save.h')
| -rw-r--r-- | IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3Save.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3Save.h b/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3Save.h new file mode 100644 index 0000000000..d9bbe932d8 --- /dev/null +++ b/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3Save.h @@ -0,0 +1,135 @@ +/** @file
+ This is an implementation of the ACPI S3 Save protocol. This is defined in
+ S3 boot path specification 0.9.
+
+Copyright (c) 2006 - 2010, 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 _ACPI_S3_SAVE_H_
+#define _ACPI_S3_SAVE_H_
+
+#pragma pack(push, 1)
+
+typedef union {
+ struct {
+ UINT32 LimitLow : 16;
+ UINT32 BaseLow : 16;
+ UINT32 BaseMid : 8;
+ UINT32 Type : 4;
+ UINT32 System : 1;
+ UINT32 Dpl : 2;
+ UINT32 Present : 1;
+ UINT32 LimitHigh : 4;
+ UINT32 Software : 1;
+ UINT32 Reserved : 1;
+ UINT32 DefaultSize : 1;
+ UINT32 Granularity : 1;
+ UINT32 BaseHigh : 8;
+ } Bits;
+ UINT64 Uint64;
+} IA32_GDT;
+
+typedef struct {
+ IA32_IDT_GATE_DESCRIPTOR Ia32IdtEntry;
+ UINT32 Offset32To63;
+ UINT32 Reserved;
+} X64_IDT_GATE_DESCRIPTOR;
+
+//
+// Page-Map Level-4 Offset (PML4) and
+// Page-Directory-Pointer Offset (PDPE) entries 4K & 2MB
+//
+
+typedef union {
+ struct {
+ UINT64 Present:1; // 0 = Not present in memory, 1 = Present in memory
+ UINT64 ReadWrite:1; // 0 = Read-Only, 1= Read/Write
+ UINT64 UserSupervisor:1; // 0 = Supervisor, 1=User
+ UINT64 WriteThrough:1; // 0 = Write-Back caching, 1=Write-Through caching
+ UINT64 CacheDisabled:1; // 0 = Cached, 1=Non-Cached
+ UINT64 Accessed:1; // 0 = Not accessed, 1 = Accessed (set by CPU)
+ UINT64 Reserved:1; // Reserved
+ UINT64 MustBeZero:2; // Must Be Zero
+ UINT64 Available:3; // Available for use by system software
+ UINT64 PageTableBaseAddress:40; // Page Table Base Address
+ UINT64 AvabilableHigh:11; // Available for use by system software
+ UINT64 Nx:1; // No Execute bit
+ } Bits;
+ UINT64 Uint64;
+} PAGE_MAP_AND_DIRECTORY_POINTER;
+
+//
+// Page Table Entry 2MB
+//
+typedef union {
+ struct {
+ UINT64 Present:1; // 0 = Not present in memory, 1 = Present in memory
+ UINT64 ReadWrite:1; // 0 = Read-Only, 1= Read/Write
+ UINT64 UserSupervisor:1; // 0 = Supervisor, 1=User
+ UINT64 WriteThrough:1; // 0 = Write-Back caching, 1=Write-Through caching
+ UINT64 CacheDisabled:1; // 0 = Cached, 1=Non-Cached
+ UINT64 Accessed:1; // 0 = Not accessed, 1 = Accessed (set by CPU)
+ UINT64 Dirty:1; // 0 = Not Dirty, 1 = written by processor on access to page
+ UINT64 MustBe1:1; // Must be 1
+ UINT64 Global:1; // 0 = Not global page, 1 = global page TLB not cleared on CR3 write
+ UINT64 Available:3; // Available for use by system software
+ UINT64 PAT:1; //
+ UINT64 MustBeZero:8; // Must be zero;
+ UINT64 PageTableBaseAddress:31; // Page Table Base Address
+ UINT64 AvabilableHigh:11; // Available for use by system software
+ UINT64 Nx:1; // 0 = Execute Code, 1 = No Code Execution
+ } Bits;
+ UINT64 Uint64;
+} PAGE_TABLE_ENTRY;
+
+#pragma pack()
+
+/**
+ Gets the buffer of legacy memory below 1 MB
+ This function is to get the buffer in legacy memory below 1MB that is required during S3 resume.
+
+ @param This A pointer to the EFI_ACPI_S3_SAVE_PROTOCOL instance.
+ @param Size The returned size of legacy memory below 1 MB.
+
+ @retval EFI_SUCCESS Size is successfully returned.
+ @retval EFI_INVALID_PARAMETER The pointer Size is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+LegacyGetS3MemorySize (
+ IN EFI_ACPI_S3_SAVE_PROTOCOL * This,
+ OUT UINTN * Size
+ );
+
+/**
+ Prepares all information that is needed in the S3 resume boot path.
+
+ Allocate the resources or prepare informations and save in ACPI variable set for S3 resume boot path
+
+ @param This A pointer to the EFI_ACPI_S3_SAVE_PROTOCOL instance.
+ @param LegacyMemoryAddress The base address of legacy memory.
+
+ @retval EFI_NOT_FOUND Some necessary information cannot be found.
+ @retval EFI_SUCCESS All information was saved successfully.
+ @retval EFI_OUT_OF_RESOURCES Resources were insufficient to save all the information.
+ @retval EFI_INVALID_PARAMETER The memory range is not located below 1 MB.
+
+**/
+EFI_STATUS
+EFIAPI
+S3Ready (
+ IN EFI_ACPI_S3_SAVE_PROTOCOL *This,
+ IN VOID *LegacyMemoryAddress
+ );
+#endif
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