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| author | Sami Mujawar <sami.mujawar@arm.com> | 2020-10-02 22:14:04 +0100 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-10-16 17:21:04 +0000 |
| commit | e556cebb2f16edbd4d1d4fdf2ae9d7cc164d1090 (patch) | |
| tree | 66615b4cbcd5e1b24940fc32dbfbb923ec97dd1e /ArmVirtPkg/Library/KvmtoolPlatformPeiLib | |
| parent | a482f08d99b3a97a8b11a4a31ed2d769b5b35771 (diff) | |
| download | edk2-e556cebb2f16edbd4d1d4fdf2ae9d7cc164d1090.tar.gz edk2-e556cebb2f16edbd4d1d4fdf2ae9d7cc164d1090.tar.bz2 edk2-e556cebb2f16edbd4d1d4fdf2ae9d7cc164d1090.zip | |
ArmVirtPkg: Add Kvmtool Platform Pei Lib
The PlatformPeim() in the PlatformPeiLib is invoked
by the PrePiMain() and provides the platform an
opportunity to setup the plaform specific HOBs.
This PlatfromPeiLib initialises the Kvmtool platform
HOBs like the Fdt, 16550BaseAddress, etc.
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Ard Biesheuvel <Ard.Biesheuvel@arm.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'ArmVirtPkg/Library/KvmtoolPlatformPeiLib')
| -rw-r--r-- | ArmVirtPkg/Library/KvmtoolPlatformPeiLib/KvmtoolPlatformPeiLib.c | 79 | ||||
| -rw-r--r-- | ArmVirtPkg/Library/KvmtoolPlatformPeiLib/KvmtoolPlatformPeiLib.inf | 49 |
2 files changed, 128 insertions, 0 deletions
diff --git a/ArmVirtPkg/Library/KvmtoolPlatformPeiLib/KvmtoolPlatformPeiLib.c b/ArmVirtPkg/Library/KvmtoolPlatformPeiLib/KvmtoolPlatformPeiLib.c new file mode 100644 index 0000000000..255eb0599e --- /dev/null +++ b/ArmVirtPkg/Library/KvmtoolPlatformPeiLib/KvmtoolPlatformPeiLib.c @@ -0,0 +1,79 @@ +/** @file
+ Kvmtool platform PEI library.
+
+ Copyright (c) 2020, ARM Limited. All rights reserved.
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiPei.h>
+
+#include <Guid/Early16550UartBaseAddress.h>
+#include <Guid/FdtHob.h>
+
+#include <Library/MemoryAllocationLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PeiServicesLib.h>
+#include <libfdt.h>
+
+/** Initialise Platform HOBs
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER A parameter is invalid.
+ @retval EFI_OUT_OF_RESOURCES Out of resources.
+**/
+EFI_STATUS
+EFIAPI
+PlatformPeim (
+ VOID
+ )
+{
+ VOID *Base;
+ VOID *NewBase;
+ UINTN FdtSize;
+ UINTN FdtPages;
+ UINT64 *FdtHobData;
+ UINT64 *UartHobData;
+
+ Base = (VOID*)(UINTN)PcdGet64 (PcdDeviceTreeInitialBaseAddress);
+ if ((Base == NULL) || (fdt_check_header (Base) != 0)) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ FdtSize = fdt_totalsize (Base) + PcdGet32 (PcdDeviceTreeAllocationPadding);
+ FdtPages = EFI_SIZE_TO_PAGES (FdtSize);
+ NewBase = AllocatePages (FdtPages);
+ if (NewBase == NULL) {
+ ASSERT (0);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ fdt_open_into (Base, NewBase, EFI_PAGES_TO_SIZE (FdtPages));
+
+ FdtHobData = BuildGuidHob (&gFdtHobGuid, sizeof (*FdtHobData));
+ if (FdtHobData == NULL) {
+ ASSERT (0);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ *FdtHobData = (UINTN)NewBase;
+
+ UartHobData = BuildGuidHob (
+ &gEarly16550UartBaseAddressGuid,
+ sizeof (*UartHobData)
+ );
+ if (UartHobData == NULL) {
+ ASSERT (0);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ *UartHobData = PcdGet64 (PcdSerialRegisterBase);
+
+ BuildFvHob (PcdGet64 (PcdFvBaseAddress), PcdGet32 (PcdFvSize));
+
+ return EFI_SUCCESS;
+}
diff --git a/ArmVirtPkg/Library/KvmtoolPlatformPeiLib/KvmtoolPlatformPeiLib.inf b/ArmVirtPkg/Library/KvmtoolPlatformPeiLib/KvmtoolPlatformPeiLib.inf new file mode 100644 index 0000000000..f201aee50c --- /dev/null +++ b/ArmVirtPkg/Library/KvmtoolPlatformPeiLib/KvmtoolPlatformPeiLib.inf @@ -0,0 +1,49 @@ +## @file
+# Kvmtool platform PEI library.
+#
+# Copyright (c) 2020, ARM Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x0001001B
+ BASE_NAME = PlatformPeiLib
+ FILE_GUID = 21073FB3-BA6F-43EB-83F0-4A840C648165
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = KvmtoolPlatformPeiLib
+
+[Sources]
+ KvmtoolPlatformPeiLib.c
+
+[Packages]
+ ArmPkg/ArmPkg.dec
+ ArmVirtPkg/ArmVirtPkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ DebugLib
+ HobLib
+ FdtLib
+ PcdLib
+ PeiServicesLib
+
+[FixedPcd]
+ gArmTokenSpaceGuid.PcdFvSize
+ gArmVirtTokenSpaceGuid.PcdDeviceTreeAllocationPadding
+
+[Pcd]
+ gArmTokenSpaceGuid.PcdFvBaseAddress
+ gArmVirtTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress
+ gEfiMdeModulePkgTokenSpaceGuid.PcdSerialRegisterBase
+
+[Guids]
+ gFdtHobGuid
+ gEarly16550UartBaseAddressGuid
+
+[Depex]
+ gEfiPeiMemoryDiscoveredPpiGuid
|