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alder_lake_bios/Intel/AlderLake/AlderLakePlatSamplePkg/Library/BpdtLib/BpdtLib.c

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/** @file
This file contains the implementation of BpdtLib library.
The library exposes an abstract interface for accessing boot data
stored in the BPDT format on the Logical Boot Partition of the boot device.
@copyright
INTEL CONFIDENTIAL
Copyright 2014 - 2018 Intel Corporation.
The source code contained or described herein and all documents related to the
source code ("Material") are owned by Intel Corporation or its suppliers or
licensors. Title to the Material remains with Intel Corporation or its suppliers
and licensors. The Material may contain trade secrets and proprietary and
confidential information of Intel Corporation and its suppliers and licensors,
and is protected by worldwide copyright and trade secret laws and treaty
provisions. No part of the Material may be used, copied, reproduced, modified,
published, uploaded, posted, transmitted, distributed, or disclosed in any way
without Intel's prior express written permission.
No license under any patent, copyright, trade secret or other intellectual
property right is granted to or conferred upon you by disclosure or delivery
of the Materials, either expressly, by implication, inducement, estoppel or
otherwise. Any license under such intellectual property rights must be
express and approved by Intel in writing.
Unless otherwise agreed by Intel in writing, you may not remove or alter
this notice or any other notice embedded in Materials by Intel or
Intel's suppliers or licensors in any way.
This file contains an 'Intel Peripheral Driver' and is uniquely identified as
"Intel Reference Module" and is licensed for Intel CPUs and chipsets under
the terms of your license agreement with Intel or your vendor. This file may
be modified by the user, subject to additional terms of the license agreement.
@par Specification
**/
#include <Uefi.h>
#include <PiPei.h>
#include <Ppi/BlockIo.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PeiServicesTablePointerLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/BpdtLib.h>
#define UFS_BOOT_LUN 1
/**
Print FV name based on GUID
**/
VOID
PrintFvName (
EFI_GUID *FvName
)
{
if (CompareGuid (FvName, &gEfiAuthenticatedVariableGuid)) {
DEBUG ((DEBUG_INFO, "gEfiAuthenticatedVariableGuid\n"));
} else if (CompareGuid (FvName, &gFspMemoryFvGuid)) {
DEBUG ((DEBUG_INFO, "gFspMemoryFvGuid\n"));
} else if (CompareGuid (FvName, &gFspTempRamFvGuid)) {
DEBUG ((DEBUG_INFO, "gFspTempRamFvGuid\n"));
} else if (CompareGuid (FvName, &gFspSiliconFvGuid)) {
DEBUG ((DEBUG_INFO, "gFspSiliconFvGuid\n"));
} else if (CompareGuid (FvName, &gFspSiliconRebasedFvGuid)) {
DEBUG ((DEBUG_INFO, "gFspSiliconRebasedFvGuid\n"));
} else if (CompareGuid (FvName, &gFvRecoveryFvGuid)) {
DEBUG ((DEBUG_INFO, "gFvRecoveryFvGuid\n"));
} else if (CompareGuid (FvName, &gFvRecovery2FvGuid)) {
DEBUG ((DEBUG_INFO, "gFvRecovery2FvGuid\n"));
} else if (CompareGuid (FvName, &gFvRecovery3FvGuid)) {
DEBUG ((DEBUG_INFO, "gFvRecovery3FvGuid\n"));
} else if (CompareGuid (FvName, &gFvRecovery3CompactFvGuid)) {
DEBUG ((DEBUG_INFO, "gFvRecovery3CompactFvGuid\n"));
} else if (CompareGuid (FvName, &gFwBinariesFvGuid)) {
DEBUG ((DEBUG_INFO, "gFwBinariesFvGuid\n"));
} else if (CompareGuid (FvName, &gFvMainFvGuid)) {
DEBUG ((DEBUG_INFO, "gFvMainFvGuid\n"));
} else if (CompareGuid (FvName, &gFvMainCompactFvGuid)) {
DEBUG ((DEBUG_INFO, "gFvMainCompactFvGuid\n"));
} else if (CompareGuid (FvName, &gFvMain2FvGuid)) {
DEBUG ((DEBUG_INFO, "gFvMain2FvGuid\n"));
} else if (CompareGuid (FvName, &gFvMain2CompactFvGuid)) {
DEBUG ((DEBUG_INFO, "gFvMain2CompactFvGuid\n"));
} else if (CompareGuid (FvName, &gMicrocodeFvGuid)) {
DEBUG ((DEBUG_INFO, "gMicrocodeFvGuid\n"));
} else if (CompareGuid (FvName, &gFvTestMenuFvGuid)) {
DEBUG ((DEBUG_INFO, "gFvTestMenuFvGuid\n"));
}
}
/**
Copy Length bytes from Source to Destination using SSE4.
@param[out] Dst The target of the copy request.
@param[in] Src The place to copy from.
@param[in] SizeInBytes The number of bytes to copy.
**/
VOID
CopyMemSse4 (
OUT VOID *Dst,
IN VOID *Src,
IN UINTN SizeInBytes
)
{
#if defined __GNUC__ // GCC compiler
__asm__ __volatile__ (
// Initialize pointers to start of the USWC memory
"\n\t mov %1, %%esi" //mov esi, Src
"\n\t mov %1, %%edx" //mov edx, Src
// Initialize pointer to end of the USWC memory
"\n\t add %2, %%edx" //add edx, SizeInBytes
// Initialize pointer to start of the cacheable WB buffer
"\n\t mov %0, %%edi" //mov edi, Dst
// save xmm0 ~ xmm3 to stack
"\n\t sub $0x40, %%esp"
"\n\t movdqu %%xmm0, 0x00(%%esp)"
"\n\t movdqu %%xmm1, 0x10(%%esp)"
"\n\t movdqu %%xmm2, 0x20(%%esp)"
"\n\t movdqu %%xmm3, 0x30(%%esp)"
// Start of Bulk Load loop
"\n\t inner_start:"
// Load data from USWC Memory using Streaming Load
"\n\t MOVNTDQA 0x00(%%esi), %%xmm0"
"\n\t MOVNTDQA 0x10(%%esi), %%xmm1"
"\n\t MOVNTDQA 0x20(%%esi), %%xmm2"
"\n\t MOVNTDQA 0x30(%%esi), %%xmm3"
// Copy data to buffer
"\n\t MOVDQA %%xmm0, 0x00(%%edi)"
"\n\t MOVDQA %%xmm1, 0x10(%%edi)"
"\n\t MOVDQA %%xmm2, 0x20(%%edi)"
"\n\t MOVDQA %%xmm3, 0x30(%%edi)"
// Increment pointers by cache line size and test for end of loop
"\n\t add $0x40, %%esi"
"\n\t add $0x40, %%edi"
"\n\t cmp %%edx, %%esi"
"\n\t jne inner_start"
// restore xmm0 ~ xmm3
"\n\t mfence"
"\n\t movdqu 0x00(%%esp), %%xmm0"
"\n\t movdqu 0x10(%%esp), %%xmm1"
"\n\t movdqu 0x20(%%esp), %%xmm2"
"\n\t movdqu 0x30(%%esp), %%xmm3"
"\n\t add $0x40, %%esp" // stack cleanup
::"a"(Dst),"b"(Src),"c"(SizeInBytes)
:"%esi", "%edi", "%edx"
);
#else //MSFT compiler
_asm {
// Initialize pointers to start of the USWC memory
mov esi, Src
mov edx, Src
// Initialize pointer to end of the USWC memory
add edx, SizeInBytes
// Initialize pointer to start of the cacheable WB buffer
mov edi, Dst
// save xmm0 ~ xmm3 to stack
sub esp, 040h
movdqu [esp], xmm0
movdqu [esp + 16], xmm1
movdqu [esp + 32], xmm2
movdqu [esp + 48], xmm3
// Start of Bulk Load loop
inner_start:
// Load data from USWC Memory using Streaming Load
MOVNTDQA xmm0, xmmword ptr [esi]
MOVNTDQA xmm1, xmmword ptr [esi + 16]
MOVNTDQA xmm2, xmmword ptr [esi + 32]
MOVNTDQA xmm3, xmmword ptr [esi + 48]
// Copy data to buffer
MOVDQA xmmword ptr [edi], xmm0
MOVDQA xmmword ptr [edi + 16], xmm1
MOVDQA xmmword ptr [edi + 32], xmm2
MOVDQA xmmword ptr [edi + 48], xmm3
// Increment pointers by cache line size and test for end of loop
add esi, 040h
add edi, 040h
cmp esi, edx
jne inner_start
// restore xmm0 ~ xmm3
mfence
movdqu xmm0, [esp]
movdqu xmm1, [esp + 16]
movdqu xmm2, [esp + 32]
movdqu xmm3, [esp + 48]
add esp, 040h // stack cleanup
}
#endif
}
/**
Read data from UFS into Memory.
The caller is responsible for calling FreePages on DataBuffer if necessary.
@param DataBuffer A pointer to the buffer address
@param Offset Offset of the data to read (4k aligned)
@param DataSize Size of the data to read
@retval EFI_SUCCESS The operation completed successfully
@retval EFI_INVALID_PARAMETER DataBuffer was NULL
@retval EFI_NOT_FOUND Problems reading from UFS
@retval EFI_OUT_OF_RESOURCES Couldn't allocate the buffer
**/
EFI_STATUS
EFIAPI
ReadFromUfs (
IN OUT VOID **DataBuffer,
IN UINT32 Offset,
IN UINTN DataSize
)
{
EFI_STATUS Status;
EFI_PEI_SERVICES **PeiServices;
EFI_PEI_RECOVERY_BLOCK_IO_PPI *BlockIoPpi;
EFI_PEI_BLOCK_IO_MEDIA Media;
EFI_PEI_LBA StartBlock;
UINTN UfsBufferSize;
VOID *UfsBuffer;
if (DataBuffer == NULL) {
DEBUG ((DEBUG_ERROR, "DataBuffer pointer is NULL!\n"));
return EFI_INVALID_PARAMETER;
}
if (Offset % SIZE_4KB) {
DEBUG ((DEBUG_ERROR, "Offset is not 4k aligned!\n"));
return EFI_INVALID_PARAMETER;
}
*DataBuffer = NULL;
if (DataSize == 0) {
return EFI_INVALID_PARAMETER;
}
PeiServices = (EFI_PEI_SERVICES **) GetPeiServicesTablePointer();
//Find UFS Block IO PPI
Status = PeiServicesLocatePpi (
&gEfiPeiVirtualBlockIoPpiGuid,
0,
NULL,
(VOID **) &BlockIoPpi
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Virtual Block IO PPI not found!\n"));
ASSERT_EFI_ERROR (Status);
return EFI_NOT_FOUND;
}
// Check if boot media is present
ZeroMem (&Media, sizeof(Media));
Status = BlockIoPpi->GetBlockDeviceMediaInfo (
PeiServices,
BlockIoPpi,
UFS_BOOT_LUN,
&Media
);
if (EFI_ERROR (Status) || !Media.MediaPresent) {
DEBUG ((DEBUG_ERROR, "Fail to get MediaInfo or boot media not present\n"));
return EFI_NOT_FOUND;
}
//Execute the read operation
StartBlock = (EFI_PEI_LBA) EFI_SIZE_TO_PAGES (Offset);
UfsBufferSize = EFI_PAGES_TO_SIZE (EFI_SIZE_TO_PAGES (DataSize));
UfsBuffer = AllocatePages (EFI_SIZE_TO_PAGES (DataSize));
if (UfsBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = BlockIoPpi->ReadBlocks (
PeiServices,
BlockIoPpi,
UFS_BOOT_LUN,
StartBlock,
UfsBufferSize,
UfsBuffer
);
*DataBuffer = UfsBuffer;
return Status;
}
/**
Provides a pointer to the CSE Layout Pointers structure, which is stored in a HOB.
If the HOB does not exist, the HOB is created by reading from UFS.
@param[out] CseLayoutPointers Pointer to the CSE Layout Pointers HOB data.
@retval EFI_SUCCESS The CSE Layout Pointers structure was retrieved.
@retval EFI_OUT_OF_RESOURCES Could not create a HOB to store the data.
@retval Others An error occurred reading from UFS.
**/
EFI_STATUS
EFIAPI
GetCseLayoutPointers (
OUT CSE_LAYOUT_POINTERS **CseLayoutPointers
)
{
EFI_STATUS Status;
VOID *UfsBuffer;
EFI_HOB_GUID_TYPE *GuidHobPtr;
//Default to NULL to allow failure-checking from caller
*CseLayoutPointers = NULL;
Status = EFI_SUCCESS;
//Check if data has already been retrieved
GuidHobPtr = GetFirstGuidHob (&gIfwiCseLayoutPointersHobGuid);
if (GuidHobPtr != NULL) {
//Retrieve a pointer to the data
*CseLayoutPointers = (CSE_LAYOUT_POINTERS *) GET_GUID_HOB_DATA (GuidHobPtr);
} else {
//Get the data from UFS
Status = ReadFromUfs (&UfsBuffer, 0, sizeof (CSE_LAYOUT_POINTERS));
if (EFI_ERROR (Status)) {
return Status;
}
//Store the data in a HOB
*CseLayoutPointers = (CSE_LAYOUT_POINTERS *) BuildGuidDataHob (
&gIfwiCseLayoutPointersHobGuid,
UfsBuffer,
sizeof (CSE_LAYOUT_POINTERS)
);
//Cleanup
FreePages(UfsBuffer, EFI_SIZE_TO_PAGES (sizeof (CSE_LAYOUT_POINTERS)));
if (*CseLayoutPointers == NULL) {
return EFI_OUT_OF_RESOURCES;
}
}
return Status;
}
/**
Provides a pointer to the BIOS region of the IFWI (BPDT 4).
The BIOS region is stored in memory.
The pointer is stored in a HOB.
If the HOB does not exist, the HOB is created by reading from UFS.
@param[out] BiosRegion Pointer to the BIOS region stored in memory.
@retval EFI_SUCCESS The BIOS region was retrieved.
@retval EFI_OUT_OF_RESOURCES Could not create a HOB to store the pointer.
@retval Others An error occurred retrieving CSE Layout pointers,
or reading from UFS.
**/
EFI_STATUS
EFIAPI
GetBiosRegion (
IN OUT VOID **BiosRegion
)
{
EFI_STATUS Status;
VOID *GuidHobPtr;
CSE_LAYOUT_POINTERS *CseLayoutPointers;
if (BiosRegion == NULL) {
DEBUG ((DEBUG_ERROR, "BiosRegion pointer is NULL!\n"));
return EFI_INVALID_PARAMETER;
}
//Default to NULL to allow failure-checking from caller
*BiosRegion = NULL;
Status = EFI_SUCCESS;
//Check if data has already been retrieved
GuidHobPtr = GetFirstGuidHob (&gIfwiBiosRegionPointerHobGuid);
if (GuidHobPtr != NULL) {
//Retrieve a pointer to the data
*BiosRegion = *((VOID **) GET_GUID_HOB_DATA (GuidHobPtr));
} else {
//Retrieve CSE Layout Pointers to find BIOS region location
Status = GetCseLayoutPointers(&CseLayoutPointers);
if (EFI_ERROR (Status)) {
return Status;
}
//Read the BIOS region from UFS
DEBUG ((DEBUG_INFO, "Lbp4Offset = 0x%08X\n", CseLayoutPointers->Lbp4Offset));
DEBUG ((DEBUG_INFO, "Lbp4Size = 0x%08X\n", CseLayoutPointers->Lbp4Size));
Status = ReadFromUfs (
BiosRegion,
CseLayoutPointers->Lbp4Offset,
CseLayoutPointers->Lbp4Size
);
if (EFI_ERROR (Status)) {
return Status;
}
//Store the pointer in a HOB
GuidHobPtr = BuildGuidDataHob (
&gIfwiBiosRegionPointerHobGuid,
BiosRegion,
sizeof (VOID *)
);
if (GuidHobPtr == NULL) {
return EFI_OUT_OF_RESOURCES;
}
if (*BiosRegion != *((VOID **) GuidHobPtr)) {
DEBUG ((DEBUG_ERROR, "BIOS REGION POINTER MISMATCH!\n"));
}
}
return Status;
}
/**
Returns an Entry of a specific Type from the provided BPDT.
@param[in] Type Entry type to return.
@param[in] Bpdt Pointer to a BPDT.
@param[out] BpdtEntry Pointer to a BPDT Entry.
@retval EFI_SUCCESS The BPDT Entry was found.
@retval EFI_NOT_FOUND The BPDT Entry was not found.
@retval Others An error occurred.
**/
EFI_STATUS
EFIAPI
GetEntryFromBpdt (
IN BPDT_ENTRY_TYPE Type,
IN BPDT_HEADER *Bpdt,
OUT BPDT_ENTRY **Entry
)
{
UINTN Index;
BPDT_ENTRY *EntryList;
if (Type >= BpdtMaxType) {
DEBUG((DEBUG_ERROR, "BPDT Entry Type %d is greater than max type %d!\n", Type, BpdtMaxType-1));
return EFI_INVALID_PARAMETER;
}
if ((Bpdt == NULL) || (Entry == NULL)) {
DEBUG((DEBUG_ERROR, "Parameter is NULL!\n"));
return EFI_INVALID_PARAMETER;
}
//Default to NULL to allow failure-checking from caller
*Entry = NULL;
if (Bpdt->Signature != BPDT_SIGN_GREEN) {
DEBUG ((DEBUG_INFO, "Signature of BPDT Header is invalid - stop parsing\n"));
return EFI_INVALID_PARAMETER;
}
//Walk BPDT Entry List
EntryList = (BPDT_ENTRY *) (Bpdt + 1);
for (Index = 0; Index < Bpdt->DescriptorCount; Index++) {
*Entry = &EntryList[Index];
if ((BPDT_ENTRY_TYPE) (*Entry)->Type == Type) {
DEBUG ((DEBUG_INFO, "Entry Type %d Offset = 0x%08X\n", Type, (*Entry)->SubPartitionOffset));
DEBUG ((DEBUG_INFO, "Entry Type %d Size = 0x%08X\n", Type, (*Entry)->SubPartitionSize));
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
/**
Populates a SUB_PARTITION_DATA struct from the provided BPDT & EntryType.
@param[in] Type Entry type to return.
@param[in] Bpdt Pointer to a BPDT.
@param[in, out] PayloadData Pointer to SUB_PARTITION_DATA struct.
@retval EFI_SUCCESS The BPDT Entry was found.
@retval EFI_NOT_FOUND The BPDT Entry was not found.
@retval Others An error occurred.
**/
EFI_STATUS
EFIAPI
GetSubPartitionData (
IN BPDT_ENTRY_TYPE Type,
IN BPDT_HEADER *Bpdt,
IN OUT SUB_PARTITION_DATA *PayloadData
)
{
EFI_STATUS Status;
BPDT_ENTRY *BpdtEntry;
if ((Bpdt == NULL) || (PayloadData == NULL)) {
return EFI_INVALID_PARAMETER;
}
Status = GetEntryFromBpdt (Type, Bpdt, &BpdtEntry);
if (EFI_ERROR (Status)) {
return Status;
}
PayloadData->Address = (VOID *) ((UINT32) Bpdt + BpdtEntry->SubPartitionOffset);
PayloadData->Size = BpdtEntry->SubPartitionSize;
return Status;
}
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