diff options
Diffstat (limited to 'OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h')
| -rw-r--r-- | OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h b/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h deleted file mode 100644 index 805df8656f..0000000000 --- a/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h +++ /dev/null @@ -1,219 +0,0 @@ -/** @file
- Legacy Region Support
-
- Copyright (c) 2008 - 2011, 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 _LEGACY_REGION_DXE_H_
-#define _LEGACY_REGION_DXE_H_
-
-#include <PiDxe.h>
-
-#include <Protocol/LegacyRegion2.h>
-
-#include <IndustryStandard/Pci.h>
-
-#include <Library/PciLib.h>
-#include <Library/PcdLib.h>
-#include <Library/DebugLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-
-#define PAM_PCI_BUS 0
-#define PAM_PCI_DEV 0
-#define PAM_PCI_FUNC 0
-
-#define REG_PAM0_OFFSET 0x59 // Programmable Attribute Map 0
-#define REG_PAM1_OFFSET 0x5a // Programmable Attribute Map 1
-#define REG_PAM2_OFFSET 0x5b // Programmable Attribute Map 2
-#define REG_PAM3_OFFSET 0x5c // Programmable Attribute Map 3
-#define REG_PAM4_OFFSET 0x5d // Programmable Attribute Map 4
-#define REG_PAM5_OFFSET 0x5e // Programmable Attribute Map 5
-#define REG_PAM6_OFFSET 0x5f // Programmable Attribute Map 6
-
-#define PAM_BASE_ADDRESS 0xc0000
-#define PAM_LIMIT_ADDRESS BASE_1MB
-
-//
-// Describes Legacy Region blocks and status.
-//
-typedef struct {
- UINT32 Start;
- UINT32 Length;
- BOOLEAN ReadEnabled;
- BOOLEAN WriteEnabled;
-} LEGACY_MEMORY_SECTION_INFO;
-
-//
-// Provides a map of the PAM registers and bits used to set Read/Write access.
-//
-typedef struct {
- UINT8 PAMRegOffset;
- UINT8 ReadEnableData;
- UINT8 WriteEnableData;
-} PAM_REGISTER_VALUE;
-
-/**
- Modify the hardware to allow (decode) or disallow (not decode) memory reads in a region.
-
- If the On parameter evaluates to TRUE, this function enables memory reads in the address range
- Start to (Start + Length - 1).
- If the On parameter evaluates to FALSE, this function disables memory reads in the address range
- Start to (Start + Length - 1).
-
- @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
- @param Start[in] The beginning of the physical address of the region whose attributes
- should be modified.
- @param Length[in] The number of bytes of memory whose attributes should be modified.
- The actual number of bytes modified may be greater than the number
- specified.
- @param Granularity[out] The number of bytes in the last region affected. This may be less
- than the total number of bytes affected if the starting address
- was not aligned to a region's starting address or if the length
- was greater than the number of bytes in the first region.
- @param On[in] Decode / Non-Decode flag.
-
- @retval EFI_SUCCESS The region's attributes were successfully modified.
- @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
-
-**/
-EFI_STATUS
-EFIAPI
-LegacyRegion2Decode (
- IN EFI_LEGACY_REGION2_PROTOCOL *This,
- IN UINT32 Start,
- IN UINT32 Length,
- OUT UINT32 *Granularity,
- IN BOOLEAN *On
- );
-
-/**
- Modify the hardware to disallow memory writes in a region.
-
- This function changes the attributes of a memory range to not allow writes.
-
- @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
- @param Start[in] The beginning of the physical address of the region whose
- attributes should be modified.
- @param Length[in] The number of bytes of memory whose attributes should be modified.
- The actual number of bytes modified may be greater than the number
- specified.
- @param Granularity[out] The number of bytes in the last region affected. This may be less
- than the total number of bytes affected if the starting address was
- not aligned to a region's starting address or if the length was
- greater than the number of bytes in the first region.
-
- @retval EFI_SUCCESS The region's attributes were successfully modified.
- @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
-
-**/
-EFI_STATUS
-EFIAPI
-LegacyRegion2Lock (
- IN EFI_LEGACY_REGION2_PROTOCOL *This,
- IN UINT32 Start,
- IN UINT32 Length,
- OUT UINT32 *Granularity
- );
-
-/**
- Modify the hardware to disallow memory attribute changes in a region.
-
- This function makes the attributes of a region read only. Once a region is boot-locked with this
- function, the read and write attributes of that region cannot be changed until a power cycle has
- reset the boot-lock attribute. Calls to Decode(), Lock() and Unlock() will have no effect.
-
- @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
- @param Start[in] The beginning of the physical address of the region whose
- attributes should be modified.
- @param Length[in] The number of bytes of memory whose attributes should be modified.
- The actual number of bytes modified may be greater than the number
- specified.
- @param Granularity[out] The number of bytes in the last region affected. This may be less
- than the total number of bytes affected if the starting address was
- not aligned to a region's starting address or if the length was
- greater than the number of bytes in the first region.
-
- @retval EFI_SUCCESS The region's attributes were successfully modified.
- @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
- @retval EFI_UNSUPPORTED The chipset does not support locking the configuration registers in
- a way that will not affect memory regions outside the legacy memory
- region.
-
-**/
-EFI_STATUS
-EFIAPI
-LegacyRegion2BootLock (
- IN EFI_LEGACY_REGION2_PROTOCOL *This,
- IN UINT32 Start,
- IN UINT32 Length,
- OUT UINT32 *Granularity
- );
-
-/**
- Modify the hardware to allow memory writes in a region.
-
- This function changes the attributes of a memory range to allow writes.
-
- @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
- @param Start[in] The beginning of the physical address of the region whose
- attributes should be modified.
- @param Length[in] The number of bytes of memory whose attributes should be modified.
- The actual number of bytes modified may be greater than the number
- specified.
- @param Granularity[out] The number of bytes in the last region affected. This may be less
- than the total number of bytes affected if the starting address was
- not aligned to a region's starting address or if the length was
- greater than the number of bytes in the first region.
-
- @retval EFI_SUCCESS The region's attributes were successfully modified.
- @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
-
-**/
-EFI_STATUS
-EFIAPI
-LegacyRegion2Unlock (
- IN EFI_LEGACY_REGION2_PROTOCOL *This,
- IN UINT32 Start,
- IN UINT32 Length,
- OUT UINT32 *Granularity
- );
-
-/**
- Get region information for the attributes of the Legacy Region.
-
- This function is used to discover the granularity of the attributes for the memory in the legacy
- region. Each attribute may have a different granularity and the granularity may not be the same
- for all memory ranges in the legacy region.
-
- @param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
- @param DescriptorCount[out] The number of region descriptor entries returned in the Descriptor
- buffer.
- @param Descriptor[out] A pointer to a pointer used to return a buffer where the legacy
- region information is deposited. This buffer will contain a list of
- DescriptorCount number of region descriptors. This function will
- provide the memory for the buffer.
-
- @retval EFI_SUCCESS The region's attributes were successfully modified.
- @retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
-
-**/
-EFI_STATUS
-EFIAPI
-LegacyRegionGetInfo (
- IN EFI_LEGACY_REGION2_PROTOCOL *This,
- OUT UINT32 *DescriptorCount,
- OUT EFI_LEGACY_REGION_DESCRIPTOR **Descriptor
- );
-
-#endif
-
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