tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

MdeModulePkg PeiCore: Install SEC HOB data 

If the EFI_SEC_HOB_DATA_PPI is in the list of PPIs passed to the PEI
entry point, the PEI Foundation will call the GetHobs() member
function and install all HOBs returned into the HOB list. It does
this after installing all PPIs passed from SEC into the PPI database
and before dispatching any PEIMs.

Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Star Zeng 2017-08-01 13:47:08 +08:00
parent 664d4c0a25
commit 483e2cddfa
4 changed files with 110 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

74
MdeModulePkg/Core/Pei/Hob/Hob.c
View File

@ -1,7 +1,7 @@
/** @file
This module provide Hand-Off Block manupulation.
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2017, 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
@ -124,6 +124,78 @@ PeiCreateHob (
return EFI_SUCCESS;
}
/**
Install SEC HOB data to the HOB List.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param SecHobList Pointer to SEC HOB List.
@return EFI_SUCCESS Success to install SEC HOB data.
@retval EFI_OUT_OF_RESOURCES If there is no more memory to grow the Hoblist.
**/
EFI_STATUS
PeiInstallSecHobData (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_HOB_GENERIC_HEADER *SecHobList
)
{
EFI_STATUS Status;
EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;
EFI_PEI_HOB_POINTERS HobStart;
EFI_PEI_HOB_POINTERS Hob;
UINTN SecHobListLength;
EFI_PHYSICAL_ADDRESS FreeMemory;
EFI_HOB_GENERIC_HEADER *HobEnd;
HandOffHob = NULL;
Status = PeiGetHobList (PeiServices, (VOID **) &HandOffHob);
if (EFI_ERROR(Status)) {
return Status;
}
ASSERT (HandOffHob != NULL);
HobStart.Raw = (UINT8 *) SecHobList;
//
// The HobList must not contain a EFI_HOB_HANDOFF_INFO_TABLE HOB (PHIT) HOB.
//
ASSERT (HobStart.Header->HobType != EFI_HOB_TYPE_HANDOFF);
//
// Calculate the SEC HOB List length,
// not including the terminated HOB(EFI_HOB_TYPE_END_OF_HOB_LIST).
//
for (Hob.Raw = HobStart.Raw; !END_OF_HOB_LIST (Hob); Hob.Raw = GET_NEXT_HOB (Hob));
SecHobListLength = (UINTN) Hob.Raw - (UINTN) HobStart.Raw;
//
// The length must be 8-bytes aligned.
//
ASSERT ((SecHobListLength & 0x7) == 0);
FreeMemory = HandOffHob->EfiFreeMemoryTop -
HandOffHob->EfiFreeMemoryBottom;
if (FreeMemory < SecHobListLength) {
DEBUG ((DEBUG_ERROR, "PeiInstallSecHobData fail: SecHobListLength - 0x%08x\n", SecHobListLength));
DEBUG ((DEBUG_ERROR, " FreeMemoryTop - 0x%08x\n", (UINTN)HandOffHob->EfiFreeMemoryTop));
DEBUG ((DEBUG_ERROR, " FreeMemoryBottom - 0x%08x\n", (UINTN)HandOffHob->EfiFreeMemoryBottom));
return EFI_OUT_OF_RESOURCES;
}
Hob.Raw = (UINT8 *) (UINTN) HandOffHob->EfiEndOfHobList;
CopyMem (Hob.Raw, HobStart.Raw, SecHobListLength);
HobEnd = (EFI_HOB_GENERIC_HEADER *) ((UINTN) Hob.Raw + SecHobListLength);
HandOffHob->EfiEndOfHobList = (EFI_PHYSICAL_ADDRESS) (UINTN) HobEnd;
HobEnd->HobType = EFI_HOB_TYPE_END_OF_HOB_LIST;
HobEnd->HobLength = (UINT16) sizeof (EFI_HOB_GENERIC_HEADER);
HobEnd->Reserved = 0;
HobEnd++;
HandOffHob->EfiFreeMemoryBottom = (EFI_PHYSICAL_ADDRESS) (UINTN) HobEnd;
return EFI_SUCCESS;
}
/**
Builds a Handoff Information Table HOB

17
MdeModulePkg/Core/Pei/PeiMain.h
View File

@ -30,6 +30,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Ppi/Security2.h>
#include <Ppi/TemporaryRamSupport.h>
#include <Ppi/TemporaryRamDone.h>
#include <Ppi/SecHobData.h>
#include <Library/DebugLib.h>
#include <Library/PeiCoreEntryPoint.h>
#include <Library/BaseLib.h>
@ -721,6 +722,22 @@ PeiCoreBuildHobHandoffInfoTable (
IN UINT64 MemoryLength
);
/**
Install SEC HOB data to the HOB List.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param SecHobList Pointer to SEC HOB List.
@return EFI_SUCCESS Success to install SEC HOB data.
@retval EFI_OUT_OF_RESOURCES If there is no more memory to grow the Hoblist.
**/
EFI_STATUS
PeiInstallSecHobData (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_HOB_GENERIC_HEADER *SecHobList
);
//
// FFS Fw Volume support functions

3
MdeModulePkg/Core/Pei/PeiMain.inf
View File

@ -6,7 +6,7 @@
# 2) Dispatch PEIM from discovered FV.
# 3) Handoff control to DxeIpl to load DXE core and enter DXE phase.
#
# Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2006 - 2017, 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
@ -101,6 +101,7 @@
gEfiTemporaryRamSupportPpiGuid ## SOMETIMES_CONSUMES
gEfiTemporaryRamDonePpiGuid ## SOMETIMES_CONSUMES
gEfiPeiReset2PpiGuid ## SOMETIMES_CONSUMES
gEfiSecHobDataPpiGuid ## SOMETIMES_CONSUMES
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdPeiCoreMaxFvSupported ## CONSUMES

17
MdeModulePkg/Core/Pei/Ppi/Ppi.c
View File

@ -727,6 +727,8 @@ ProcessPpiListFromSec (
)
{
EFI_STATUS Status;
EFI_SEC_HOB_DATA_PPI *SecHobDataPpi;
EFI_HOB_GENERIC_HEADER *SecHobList;
for (;;) {
if ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_NOTIFY_TYPES) != 0) {
@ -752,5 +754,20 @@ ProcessPpiListFromSec (
PpiList++;
}
//
// If the EFI_SEC_HOB_DATA_PPI is in the list of PPIs passed to the PEI entry point,
// the PEI Foundation will call the GetHobs() member function and install all HOBs
// returned into the HOB list. It does this after installing all PPIs passed from SEC
// into the PPI database and before dispatching any PEIMs.
//
Status = PeiLocatePpi (PeiServices, &gEfiSecHobDataPpiGuid, 0, NULL, (VOID **) &SecHobDataPpi);
if (!EFI_ERROR (Status)) {
Status = SecHobDataPpi->GetHobs (SecHobDataPpi, &SecHobList);
if (!EFI_ERROR (Status)) {
Status = PeiInstallSecHobData (PeiServices, SecHobList);
ASSERT_EFI_ERROR (Status);
}
}
}