Revision: 16134
http://sourceforge.net/p/edk2/code/16134
Author: oliviermartin
Date: 2014-09-18 17:55:17 +0000 (Thu, 18 Sep 2014)
Log Message:
-----------
ArmPlatformPkg/ArmVirtualizationPkg: Add private HobLib implementation for DXE
phase
To allow a dynamically discovered UART base address, we parse the device
tree early and store the base address in a HOB. To prevent circular
constructor dependencies from interfering with bringing up the serial port
using this dynamic base address, use our own private HobLib with no
dependencies on DebugLib either directly or indirectly through UefiLib.
Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Laszlo Ersek <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Reviewed-by: Olivier Martin <[email protected]>
Added Paths:
-----------
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationDxeHobLib/
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationDxeHobLib/ArmVirtualizationDxeHobLib.inf
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationDxeHobLib/HobLib.c
Added:
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationDxeHobLib/ArmVirtualizationDxeHobLib.inf
===================================================================
---
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationDxeHobLib/ArmVirtualizationDxeHobLib.inf
(rev 0)
+++
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationDxeHobLib/ArmVirtualizationDxeHobLib.inf
2014-09-18 17:55:17 UTC (rev 16134)
@@ -0,0 +1,40 @@
+## @file
+# Instance of HOB Library using HOB list from EFI Configuration Table, with
+# DebugLib dependency removed
+#
+# HOB Library implementation that retrieves the HOB List
+# from the System Configuration Table in the EFI System Table.
+#
+# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2014, Linaro Ltd. 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.
+#
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = ArmVirtualizationDxeHobLib
+ FILE_GUID = 3CD90EEC-EBF3-425D-AAE8-B16215AC4F50
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = HobLib|DXE_DRIVER DXE_RUNTIME_DRIVER
DXE_SAL_DRIVER SMM_CORE DXE_SMM_DRIVER UEFI_APPLICATION UEFI_DRIVER
+ CONSTRUCTOR = HobLibConstructor
+
+[Sources]
+ HobLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ BaseMemoryLib
+
+[Guids]
+ gEfiHobListGuid ## CONSUMES ## SystemTable
Added:
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationDxeHobLib/HobLib.c
===================================================================
---
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationDxeHobLib/HobLib.c
(rev 0)
+++
trunk/edk2/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationDxeHobLib/HobLib.c
2014-09-18 17:55:17 UTC (rev 16134)
@@ -0,0 +1,577 @@
+/** @file
+ HOB Library implemenation for Dxe Phase with DebugLib dependency removed
+
+Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2014, Linaro Ltd. 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.
+
+**/
+
+#define ASSERT(Expression) \
+ do { \
+ if (!(Expression)) { \
+ CpuDeadLoop (); \
+ } \
+ } while (FALSE)
+
+#include <PiDxe.h>
+
+#include <Guid/HobList.h>
+
+#include <Library/HobLib.h>
+#include <Library/UefiLib.h>
+#include <Library/BaseMemoryLib.h>
+
+VOID *mHobList = NULL;
+
+/**
+ The constructor function caches the pointer to HOB list.
+
+ The constructor function gets the start address of HOB list from system
configuration table.
+
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The constructor successfully gets HobList.
+ @retval Other value The constructor can't get HobList.
+
+**/
+EFI_STATUS
+EFIAPI
+HobLibConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ UINTN Index;
+
+ for (Index = 0; Index < SystemTable->NumberOfTableEntries; Index++) {
+ if (CompareGuid (&gEfiHobListGuid,
&(SystemTable->ConfigurationTable[Index].VendorGuid))) {
+ mHobList = SystemTable->ConfigurationTable[Index].VendorTable;
+ return EFI_SUCCESS;
+ }
+ }
+
+ return EFI_NOT_FOUND;
+}
+
+/**
+ Returns the pointer to the HOB list.
+
+ This function returns the pointer to first HOB in the list.
+ For PEI phase, the PEI service GetHobList() can be used to retrieve the
pointer
+ to the HOB list. For the DXE phase, the HOB list pointer can be retrieved
through
+ the EFI System Table by looking up theHOB list GUID in the System
Configuration Table.
+ Since the System Configuration Table does not exist that the time the DXE
Core is
+ launched, the DXE Core uses a global variable from the DXE Core Entry Point
Library
+ to manage the pointer to the HOB list.
+
+ If the pointer to the HOB list is NULL, then ASSERT().
+
+ @return The pointer to the HOB list.
+
+**/
+VOID *
+EFIAPI
+GetHobList (
+ VOID
+ )
+{
+ ASSERT (mHobList != NULL);
+ return mHobList;
+}
+
+/**
+ Returns the next instance of a HOB type from the starting HOB.
+
+ This function searches the first instance of a HOB type from the starting
HOB pointer.
+ If there does not exist such HOB type from the starting HOB pointer, it will
return NULL.
+ In contrast with macro GET_NEXT_HOB(), this function does not skip the
starting HOB pointer
+ unconditionally: it returns HobStart back if HobStart itself meets the
requirement;
+ caller is required to use GET_NEXT_HOB() if it wishes to skip current
HobStart.
+
+ If HobStart is NULL, then ASSERT().
+
+ @param Type The HOB type to return.
+ @param HobStart The starting HOB pointer to search from.
+
+ @return The next instance of a HOB type from the starting HOB.
+
+**/
+VOID *
+EFIAPI
+GetNextHob (
+ IN UINT16 Type,
+ IN CONST VOID *HobStart
+ )
+{
+ EFI_PEI_HOB_POINTERS Hob;
+
+ ASSERT (HobStart != NULL);
+
+ Hob.Raw = (UINT8 *) HobStart;
+ //
+ // Parse the HOB list until end of list or matching type is found.
+ //
+ while (!END_OF_HOB_LIST (Hob)) {
+ if (Hob.Header->HobType == Type) {
+ return Hob.Raw;
+ }
+ Hob.Raw = GET_NEXT_HOB (Hob);
+ }
+ return NULL;
+}
+
+/**
+ Returns the first instance of a HOB type among the whole HOB list.
+
+ This function searches the first instance of a HOB type among the whole HOB
list.
+ If there does not exist such HOB type in the HOB list, it will return NULL.
+
+ If the pointer to the HOB list is NULL, then ASSERT().
+
+ @param Type The HOB type to return.
+
+ @return The next instance of a HOB type from the starting HOB.
+
+**/
+VOID *
+EFIAPI
+GetFirstHob (
+ IN UINT16 Type
+ )
+{
+ VOID *HobList;
+
+ HobList = GetHobList ();
+ return GetNextHob (Type, HobList);
+}
+
+/**
+ Returns the next instance of the matched GUID HOB from the starting HOB.
+
+ This function searches the first instance of a HOB from the starting HOB
pointer.
+ Such HOB should satisfy two conditions:
+ its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the
input Guid.
+ If there does not exist such HOB from the starting HOB pointer, it will
return NULL.
+ Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE
()
+ to extract the data section and its size information, respectively.
+ In contrast with macro GET_NEXT_HOB(), this function does not skip the
starting HOB pointer
+ unconditionally: it returns HobStart back if HobStart itself meets the
requirement;
+ caller is required to use GET_NEXT_HOB() if it wishes to skip current
HobStart.
+
+ If Guid is NULL, then ASSERT().
+ If HobStart is NULL, then ASSERT().
+
+ @param Guid The GUID to match with in the HOB list.
+ @param HobStart A pointer to a Guid.
+
+ @return The next instance of the matched GUID HOB from the starting HOB.
+
+**/
+VOID *
+EFIAPI
+GetNextGuidHob (
+ IN CONST EFI_GUID *Guid,
+ IN CONST VOID *HobStart
+ )
+{
+ EFI_PEI_HOB_POINTERS GuidHob;
+
+ GuidHob.Raw = (UINT8 *) HobStart;
+ while ((GuidHob.Raw = GetNextHob (EFI_HOB_TYPE_GUID_EXTENSION, GuidHob.Raw))
!= NULL) {
+ if (CompareGuid (Guid, &GuidHob.Guid->Name)) {
+ break;
+ }
+ GuidHob.Raw = GET_NEXT_HOB (GuidHob);
+ }
+ return GuidHob.Raw;
+}
+
+/**
+ Returns the first instance of the matched GUID HOB among the whole HOB list.
+
+ This function searches the first instance of a HOB among the whole HOB list.
+ Such HOB should satisfy two conditions:
+ its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name equals to the
input Guid.
+ If there does not exist such HOB from the starting HOB pointer, it will
return NULL.
+ Caller is required to apply GET_GUID_HOB_DATA () and GET_GUID_HOB_DATA_SIZE
()
+ to extract the data section and its size information, respectively.
+
+ If the pointer to the HOB list is NULL, then ASSERT().
+ If Guid is NULL, then ASSERT().
+
+ @param Guid The GUID to match with in the HOB list.
+
+ @return The first instance of the matched GUID HOB among the whole HOB list.
+
+**/
+VOID *
+EFIAPI
+GetFirstGuidHob (
+ IN CONST EFI_GUID *Guid
+ )
+{
+ VOID *HobList;
+
+ HobList = GetHobList ();
+ return GetNextGuidHob (Guid, HobList);
+}
+
+/**
+ Get the system boot mode from the HOB list.
+
+ This function returns the system boot mode information from the
+ PHIT HOB in HOB list.
+
+ If the pointer to the HOB list is NULL, then ASSERT().
+
+ @param VOID
+
+ @return The Boot Mode.
+
+**/
+EFI_BOOT_MODE
+EFIAPI
+GetBootModeHob (
+ VOID
+ )
+{
+ EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;
+
+ HandOffHob = (EFI_HOB_HANDOFF_INFO_TABLE *) GetHobList ();
+
+ return HandOffHob->BootMode;
+}
+
+/**
+ Builds a HOB for a loaded PE32 module.
+
+ This function builds a HOB for a loaded PE32 module.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If ModuleName is NULL, then ASSERT().
+ If there is no additional space for HOB creation, then ASSERT().
+
+ @param ModuleName The GUID File Name of the module.
+ @param MemoryAllocationModule The 64 bit physical address of the module.
+ @param ModuleLength The length of the module in bytes.
+ @param EntryPoint The 64 bit physical address of the module
entry point.
+
+**/
+VOID
+EFIAPI
+BuildModuleHob (
+ IN CONST EFI_GUID *ModuleName,
+ IN EFI_PHYSICAL_ADDRESS MemoryAllocationModule,
+ IN UINT64 ModuleLength,
+ IN EFI_PHYSICAL_ADDRESS EntryPoint
+ )
+{
+ //
+ // PEI HOB is read only for DXE phase
+ //
+ ASSERT (FALSE);
+}
+
+/**
+ Builds a HOB that describes a chunk of system memory.
+
+ This function builds a HOB that describes a chunk of system memory.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If there is no additional space for HOB creation, then ASSERT().
+
+ @param ResourceType The type of resource described by this HOB.
+ @param ResourceAttribute The resource attributes of the memory described
by this HOB.
+ @param PhysicalStart The 64 bit physical address of memory described
by this HOB.
+ @param NumberOfBytes The length of the memory described by this HOB
in bytes.
+
+**/
+VOID
+EFIAPI
+BuildResourceDescriptorHob (
+ IN EFI_RESOURCE_TYPE ResourceType,
+ IN EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute,
+ IN EFI_PHYSICAL_ADDRESS PhysicalStart,
+ IN UINT64 NumberOfBytes
+ )
+{
+ //
+ // PEI HOB is read only for DXE phase
+ //
+ ASSERT (FALSE);
+}
+
+/**
+ Builds a customized HOB tagged with a GUID for identification and returns
+ the start address of GUID HOB data.
+
+ This function builds a customized HOB tagged with a GUID for identification
+ and returns the start address of GUID HOB data so that caller can fill the
customized data.
+ The HOB Header and Name field is already stripped.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If Guid is NULL, then ASSERT().
+ If there is no additional space for HOB creation, then ASSERT().
+ If DataLength > (0xFFF8 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().
+ HobLength is UINT16 and multiples of 8 bytes, so the max HobLength is 0xFFF8.
+
+ @param Guid The GUID to tag the customized HOB.
+ @param DataLength The size of the data payload for the GUID HOB.
+
+ @retval NULL The GUID HOB could not be allocated.
+ @retval others The start address of GUID HOB data.
+
+**/
+VOID *
+EFIAPI
+BuildGuidHob (
+ IN CONST EFI_GUID *Guid,
+ IN UINTN DataLength
+ )
+{
+ //
+ // PEI HOB is read only for DXE phase
+ //
+ ASSERT (FALSE);
+ return NULL;
+}
+
+/**
+ Builds a customized HOB tagged with a GUID for identification, copies the
input data to the HOB
+ data field, and returns the start address of the GUID HOB data.
+
+ This function builds a customized HOB tagged with a GUID for identification
and copies the input
+ data to the HOB data field and returns the start address of the GUID HOB
data. It can only be
+ invoked during PEI phase; for DXE phase, it will ASSERT() since PEI HOB is
read-only for DXE phase.
+ The HOB Header and Name field is already stripped.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If Guid is NULL, then ASSERT().
+ If Data is NULL and DataLength > 0, then ASSERT().
+ If there is no additional space for HOB creation, then ASSERT().
+ If DataLength > (0xFFF8 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().
+ HobLength is UINT16 and multiples of 8 bytes, so the max HobLength is 0xFFF8.
+
+ @param Guid The GUID to tag the customized HOB.
+ @param Data The data to be copied into the data field of the GUID
HOB.
+ @param DataLength The size of the data payload for the GUID HOB.
+
+ @retval NULL The GUID HOB could not be allocated.
+ @retval others The start address of GUID HOB data.
+
+**/
+VOID *
+EFIAPI
+BuildGuidDataHob (
+ IN CONST EFI_GUID *Guid,
+ IN VOID *Data,
+ IN UINTN DataLength
+ )
+{
+ //
+ // PEI HOB is read only for DXE phase
+ //
+ ASSERT (FALSE);
+ return NULL;
+}
+
+/**
+ Builds a Firmware Volume HOB.
+
+ This function builds a Firmware Volume HOB.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If there is no additional space for HOB creation, then ASSERT().
+
+ @param BaseAddress The base address of the Firmware Volume.
+ @param Length The size of the Firmware Volume in bytes.
+
+**/
+VOID
+EFIAPI
+BuildFvHob (
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length
+ )
+{
+ //
+ // PEI HOB is read only for DXE phase
+ //
+ ASSERT (FALSE);
+}
+
+/**
+ Builds a EFI_HOB_TYPE_FV2 HOB.
+
+ This function builds a EFI_HOB_TYPE_FV2 HOB.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If there is no additional space for HOB creation, then ASSERT().
+
+ @param BaseAddress The base address of the Firmware Volume.
+ @param Length The size of the Firmware Volume in bytes.
+ @param FvName The name of the Firmware Volume.
+ @param FileName The name of the file.
+
+**/
+VOID
+EFIAPI
+BuildFv2Hob (
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length,
+ IN CONST EFI_GUID *FvName,
+ IN CONST EFI_GUID *FileName
+ )
+{
+ ASSERT (FALSE);
+}
+
+
+/**
+ Builds a Capsule Volume HOB.
+
+ This function builds a Capsule Volume HOB.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If the platform does not support Capsule Volume HOBs, then ASSERT().
+ If there is no additional space for HOB creation, then ASSERT().
+
+ @param BaseAddress The base address of the Capsule Volume.
+ @param Length The size of the Capsule Volume in bytes.
+
+**/
+VOID
+EFIAPI
+BuildCvHob (
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length
+ )
+{
+ //
+ // PEI HOB is read only for DXE phase
+ //
+ ASSERT (FALSE);
+}
+
+/**
+ Builds a HOB for the CPU.
+
+ This function builds a HOB for the CPU.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If there is no additional space for HOB creation, then ASSERT().
+
+ @param SizeOfMemorySpace The maximum physical memory addressability of
the processor.
+ @param SizeOfIoSpace The maximum physical I/O addressability of the
processor.
+
+**/
+VOID
+EFIAPI
+BuildCpuHob (
+ IN UINT8 SizeOfMemorySpace,
+ IN UINT8 SizeOfIoSpace
+ )
+{
+ //
+ // PEI HOB is read only for DXE phase
+ //
+ ASSERT (FALSE);
+}
+
+/**
+ Builds a HOB for the Stack.
+
+ This function builds a HOB for the stack.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If there is no additional space for HOB creation, then ASSERT().
+
+ @param BaseAddress The 64 bit physical address of the Stack.
+ @param Length The length of the stack in bytes.
+
+**/
+VOID
+EFIAPI
+BuildStackHob (
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length
+ )
+{
+ //
+ // PEI HOB is read only for DXE phase
+ //
+ ASSERT (FALSE);
+}
+
+/**
+ Builds a HOB for the BSP store.
+
+ This function builds a HOB for BSP store.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If there is no additional space for HOB creation, then ASSERT().
+
+ @param BaseAddress The 64 bit physical address of the BSP.
+ @param Length The length of the BSP store in bytes.
+ @param MemoryType Type of memory allocated by this HOB.
+
+**/
+VOID
+EFIAPI
+BuildBspStoreHob (
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length,
+ IN EFI_MEMORY_TYPE MemoryType
+ )
+{
+ //
+ // PEI HOB is read only for DXE phase
+ //
+ ASSERT (FALSE);
+}
+
+/**
+ Builds a HOB for the memory allocation.
+
+ This function builds a HOB for the memory allocation.
+ It can only be invoked during PEI phase;
+ for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
+
+ If there is no additional space for HOB creation, then ASSERT().
+
+ @param BaseAddress The 64 bit physical address of the memory.
+ @param Length The length of the memory allocation in bytes.
+ @param MemoryType Type of memory allocated by this HOB.
+
+**/
+VOID
+EFIAPI
+BuildMemoryAllocationHob (
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length,
+ IN EFI_MEMORY_TYPE MemoryType
+ )
+{
+ //
+ // PEI HOB is read only for DXE phase
+ //
+ ASSERT (FALSE);
+}
------------------------------------------------------------------------------
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