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c7fbc86eb3
Support FSP 2.3 FSP_NON_VOLATILE_STORAGE_HOB2 Signed-off-by: Kobe <kok.tong.ong@intel.com>
110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
/** @file
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Copyright (c) 2016-2023, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __FSP_SUPPORT_LIB_H__
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#define __FSP_SUPPORT_LIB_H__
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typedef VOID \
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(EFIAPI *MEM_RES_HOB_CALLBACK) (EFI_HOB_RESOURCE_DESCRIPTOR *ResourceDescriptor, VOID *Param);
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/**
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This function retrieves FSP Non-volatile Storage HOB buffer and size.
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@param HobListPtr A HOB list pointer.
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@param Length A pointer to the NVS data buffer length. If the FSP NVS
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HOB is located, the length will be updated.
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@retval NULL Failed to find the NVS HOB.
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@retval others FSP NVS data buffer pointer.
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**/
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VOID *
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EFIAPI
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GetFspNvsDataBuffer (
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CONST VOID *HobListPtr,
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UINT32 *Length
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);
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/**
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This function retrieves FSP Non-volatile Storage HOB 2 buffer and size.
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@param HobListPtr A HOB list pointer.
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@param Length A pointer to the NVS data buffer length. If the FSP NVS
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HOB is located, the length will be updated.
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@retval NULL Failed to find the NVS HOB.
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@retval others FSP NVS data buffer pointer.
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**/
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VOID *
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EFIAPI
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GetFspNvsData2Buffer (
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CONST VOID *HobListPtr,
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UINT32 *Length
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);
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/**
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This function retrieves a special reserved memory region.
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@param HobListPtr A HOB list pointer.
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@param Length A pointer to the GUID HOB data buffer length. If the GUID HOB is
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located, the length will be updated.
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@param OwnerGuid A pointer to the owner guild.
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@retval Reserved region start address. 0 if this region does not exist.
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**/
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UINT64
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EFIAPI
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GetFspReservedMemoryFromGuid (
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CONST VOID *HobListPtr,
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UINT64 *Length,
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EFI_GUID *OwnerGuid
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);
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/**
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This function retrieves a top of low and high memory address.
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@param HobListPtr A HOB list pointer.
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@param TopOfHighMem A pointer to receive the top of high memory.
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@retval Top of low memory.
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**/
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UINT32
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EFIAPI
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GetSystemTopOfMemeory (
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CONST VOID *HobListPtr,
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UINT64 *TopOfHighMem OPTIONAL
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);
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/**
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This function traverses each memory resource hob type and calls the handler.
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@param HobListPtr A HOB list pointer.
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@param MemResHobCallback A function pointer to the callback handler
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@param Param A pointer to the parameter which will be passed into handler.
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**/
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VOID
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EFIAPI
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TraverseMemoryResourceHob (
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IN CONST VOID *HobListPtr,
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IN MEM_RES_HOB_CALLBACK MemResHobCallback,
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IN VOID *Param
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);
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/**
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Dump FSP memory resource
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@param HobListPtr A HOB list pointer.
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**/
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VOID
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EFIAPI
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DumpFspResourceHob (
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IN CONST VOID *HobListPtr
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);
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#endif
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