Platfrom PEI module for LoongArch platfrom initialization.
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584
Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
Cc: Laszlo Ersek <ler...@redhat.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Jordan Justen <jordan.l.jus...@intel.com>
Cc: Gerd Hoffmann <kra...@redhat.com>
Cc: Bibo Mao <maob...@loongson.cn>
Cc: Dongyan Qian <qiandong...@loongson.cn>
Signed-off-by: Chao Li <lic...@loongson.cn>
Co-authored-by: Xianglai Li <lixiang...@loongson.cn>
Co-authored-by: Bibo Mao <maob...@loongson.cn>
Reviewed-by: Bibo Mao <maob...@loongson.cn>
---
OvmfPkg/LoongArchVirt/PlatformPei/Fv.c | 39 ++
OvmfPkg/LoongArchVirt/PlatformPei/MemDetect.c | 201 +++++++++
OvmfPkg/LoongArchVirt/PlatformPei/Platform.c | 393 ++++++++++++++++++
OvmfPkg/LoongArchVirt/PlatformPei/Platform.h | 146 +++++++
.../LoongArchVirt/PlatformPei/PlatformPei.inf | 72 ++++
5 files changed, 851 insertions(+)
create mode 100644 OvmfPkg/LoongArchVirt/PlatformPei/Fv.c
create mode 100644 OvmfPkg/LoongArchVirt/PlatformPei/MemDetect.c
create mode 100644 OvmfPkg/LoongArchVirt/PlatformPei/Platform.c
create mode 100644 OvmfPkg/LoongArchVirt/PlatformPei/Platform.h
create mode 100644 OvmfPkg/LoongArchVirt/PlatformPei/PlatformPei.inf
diff --git a/OvmfPkg/LoongArchVirt/PlatformPei/Fv.c
b/OvmfPkg/LoongArchVirt/PlatformPei/Fv.c
new file mode 100644
index 0000000000..d46326f135
--- /dev/null
+++ b/OvmfPkg/LoongArchVirt/PlatformPei/Fv.c
@@ -0,0 +1,39 @@
+/** @file
+ Build FV related hobs for platform.
+
+ Copyright (c) 2024 Loongson Technology Corporation Limited. All rights
reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/PcdLib.h>
+#include "Platform.h"
+
+/**
+ Publish PEI & DXE (Decompressed) Memory based FVs to let PEI
+ and DXE know about them.
+
+ @retval EFI_SUCCESS Platform PEI FVs were initialized successfully.
+**/
+EFI_STATUS
+PeiFvInitialization (
+ VOID
+ )
+{
+ DEBUG ((DEBUG_INFO, "Platform PEI Firmware Volume Initialization\n"));
+
+ //
+ // Create a memory allocation HOB for the PEI FV.
+ //
+ BuildMemoryAllocationHob (
+ FixedPcdGet64 (PcdOvmfSecPeiTempRamBase),
+ FixedPcdGet32 (PcdOvmfSecPeiTempRamSize),
+ EfiBootServicesData
+ );
+
+ return EFI_SUCCESS;
+}
diff --git a/OvmfPkg/LoongArchVirt/PlatformPei/MemDetect.c
b/OvmfPkg/LoongArchVirt/PlatformPei/MemDetect.c
new file mode 100644
index 0000000000..9c90413524
--- /dev/null
+++ b/OvmfPkg/LoongArchVirt/PlatformPei/MemDetect.c
@@ -0,0 +1,201 @@
+/** @file
+ Memory Detection for Virtual Machines.
+
+ Copyright (c) 2024 Loongson Technology Corporation Limited. All rights
reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+//
+// The package level header files this module uses
+//
+#include <PiPei.h>
+
+//
+// The Library classes this module consumes
+//
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/IoLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PeimEntryPoint.h>
+#include <Library/QemuFwCfgLib.h>
+#include <Library/ResourcePublicationLib.h>
+#include <Register/LoongArch64/Csr.h>
+#include "Platform.h"
+
+#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS (128)
+#define LOONGARCH_FW_RAM_TOP BASE_256MB
+
+/**
+ Publish PEI core memory
+
+ @return EFI_SUCCESS The PEIM initialized successfully.
+**/
+EFI_STATUS
+PublishPeiMemory (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ UINT64 Base;
+ UINT64 Size;
+ UINT64 RamTop;
+
+ //
+ // Determine the range of memory to use during PEI
+ //
+ Base = FixedPcdGet64 (PcdOvmfSecPeiTempRamBase) + FixedPcdGet32
(PcdOvmfSecPeiTempRamSize);
+ RamTop = LOONGARCH_FW_RAM_TOP;
+ Size = RamTop - Base;
+
+ //
+ // Publish this memory to the PEI Core
+ //
+ Status = PublishSystemMemory (Base, Size);
+ ASSERT_EFI_ERROR (Status);
+
+ DEBUG ((DEBUG_INFO, "Publish Memory Initialize done.\n"));
+ return Status;
+}
+
+/**
+ Peform Memory Detection
+ Publish system RAM and reserve memory regions
+**/
+VOID
+InitializeRamRegions (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ FIRMWARE_CONFIG_ITEM FwCfgItem;
+ UINTN FwCfgSize;
+ MEMMAP_ENTRY MemoryMapEntry;
+ MEMMAP_ENTRY *StartEntry;
+ MEMMAP_ENTRY *pEntry;
+ UINTN Processed;
+
+ Status = QemuFwCfgFindFile ("etc/memmap", &FwCfgItem, &FwCfgSize);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "%a %d read etc/memmap error Status %d \n", __func__,
__LINE__, Status));
+ return;
+ }
+
+ if (FwCfgSize % sizeof MemoryMapEntry != 0) {
+ DEBUG ((DEBUG_ERROR, "no MemoryMapEntry FwCfgSize:%d\n", FwCfgSize));
+ return;
+ }
+
+ QemuFwCfgSelectItem (FwCfgItem);
+ StartEntry = AllocatePages (EFI_SIZE_TO_PAGES (FwCfgSize));
+ QemuFwCfgReadBytes (FwCfgSize, StartEntry);
+ for (Processed = 0; Processed < (FwCfgSize / sizeof MemoryMapEntry);
Processed++) {
+ pEntry = StartEntry + Processed;
+ if (pEntry->Length == 0) {
+ continue;
+ }
+
+ DEBUG ((DEBUG_INFO, "MemmapEntry Base %p length %p type %d\n",
pEntry->BaseAddr, pEntry->Length, pEntry->Type));
+ if (pEntry->Type != EfiAcpiAddressRangeMemory) {
+ continue;
+ }
+
+ AddMemoryRangeHob (pEntry->BaseAddr, pEntry->BaseAddr + pEntry->Length);
+ }
+
+ //
+ // When 0 address protection is enabled,
+ // 0-4k memory needs to be preallocated to prevent UEFI applications from
allocating use,
+ // such as grub
+ //
+ if (PcdGet8 (PcdNullPointerDetectionPropertyMask) & BIT0) {
+ BuildMemoryAllocationHob (
+ 0,
+ EFI_PAGE_SIZE,
+ EfiBootServicesData
+ );
+ }
+}
+
+/**
+ Gets the Virtual Memory Map of corresponding platforms.
+
+ This Virtual Memory Map is used by initialize the MMU on corresponding
+ platforms.
+
+ @param[out] MemoryTable Array of MEMORY_REGION_DESCRIPTOR
+ describing a Physical-to-Virtual Memory
+ mapping. This array must be ended by a
+ zero-filled entry. The allocated memory
+ will not be freed.
+**/
+VOID
+EFIAPI
+GetMemoryMapPolicy (
+ OUT MEMORY_REGION_DESCRIPTOR **MemoryTable
+ )
+{
+ EFI_STATUS Status;
+ FIRMWARE_CONFIG_ITEM FwCfgItem;
+ UINTN FwCfgSize;
+ MEMMAP_ENTRY MemoryMapEntry;
+ MEMMAP_ENTRY *StartEntry;
+ MEMMAP_ENTRY *pEntry;
+ UINTN Processed;
+ MEMORY_REGION_DESCRIPTOR *VirtualMemoryTable;
+ UINTN Index = 0;
+
+ ASSERT (MemoryTable != NULL);
+
+ VirtualMemoryTable = AllocatePool (
+ sizeof (MEMORY_REGION_DESCRIPTOR) *
+ MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS
+ );
+
+ //
+ // Add the 0x10000000-0x20000000. In the virtual machine, this area use for
CPU UART, flash, PIC etc.
+ //
+ VirtualMemoryTable[Index].PhysicalBase = 0x10000000;
+ VirtualMemoryTable[Index].VirtualBase =
VirtualMemoryTable[Index].PhysicalBase;
+ VirtualMemoryTable[Index].Length = 0x10000000;
+ VirtualMemoryTable[Index].Attributes = PAGE_VALID | PLV_KERNEL |
CACHE_SUC | PAGE_DIRTY | PAGE_GLOBAL;
+ ++Index;
+
+ Status = QemuFwCfgFindFile ("etc/memmap", &FwCfgItem, &FwCfgSize);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "%a %d read etc/memmap error Status %d \n", __func__,
__LINE__, Status));
+ ZeroMem (&VirtualMemoryTable[Index], sizeof (MEMORY_REGION_DESCRIPTOR));
+ *MemoryTable = VirtualMemoryTable;
+ return;
+ }
+
+ if (FwCfgSize % sizeof MemoryMapEntry != 0) {
+ DEBUG ((DEBUG_ERROR, "no MemoryMapEntry FwCfgSize:%d\n", FwCfgSize));
+ }
+
+ QemuFwCfgSelectItem (FwCfgItem);
+ StartEntry = AllocatePages (EFI_SIZE_TO_PAGES (FwCfgSize));
+ QemuFwCfgReadBytes (FwCfgSize, StartEntry);
+ for (Processed = 0; Processed < (FwCfgSize / sizeof MemoryMapEntry);
Processed++) {
+ pEntry = StartEntry + Processed;
+ if (pEntry->Length == 0) {
+ continue;
+ }
+
+ DEBUG ((DEBUG_INFO, "MemmapEntry Base %p length %p type %d\n",
pEntry->BaseAddr, pEntry->Length, pEntry->Type));
+ VirtualMemoryTable[Index].PhysicalBase = pEntry->BaseAddr;
+ VirtualMemoryTable[Index].VirtualBase =
VirtualMemoryTable[Index].PhysicalBase;
+ VirtualMemoryTable[Index].Length = pEntry->Length;
+ VirtualMemoryTable[Index].Attributes = PAGE_VALID | PLV_KERNEL |
CACHE_CC | PAGE_DIRTY | PAGE_GLOBAL;
+ ++Index;
+ }
+
+ FreePages (StartEntry, EFI_SIZE_TO_PAGES (FwCfgSize));
+ // End of Table
+ ZeroMem (&VirtualMemoryTable[Index], sizeof (MEMORY_REGION_DESCRIPTOR));
+ *MemoryTable = VirtualMemoryTable;
+}
diff --git a/OvmfPkg/LoongArchVirt/PlatformPei/Platform.c
b/OvmfPkg/LoongArchVirt/PlatformPei/Platform.c
new file mode 100644
index 0000000000..10719c4459
--- /dev/null
+++ b/OvmfPkg/LoongArchVirt/PlatformPei/Platform.c
@@ -0,0 +1,393 @@
+/** @file
+ Platform PEI driver
+
+ Copyright (c) 2024 Loongson Technology Corporation Limited. All rights
reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ @par Glossary:
+ - Mem - Memory
+**/
+
+//
+// The package level header files this module uses
+//
+#include <PiPei.h>
+//
+// The Library classes this module consumes
+//
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/IoLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/MpInitLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PeimEntryPoint.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/ResourcePublicationLib.h>
+#include <Library/PlatformHookLib.h>
+#include <Guid/MemoryTypeInformation.h>
+#include <Library/QemuFwCfgLib.h>
+#include <Guid/FdtHob.h>
+#include <libfdt.h>
+#include <Ppi/MasterBootMode.h>
+#include <Register/LoongArch64/Cpucfg.h>
+#include <Register/LoongArch64/Csr.h>
+
+#include "Platform.h"
+
+VOID
+SaveRtcRegisterAddressHob (
+ UINT64 RtcRegisterBase
+ );
+
+/* TODO */
+EFI_MEMORY_TYPE_INFORMATION mDefaultMemoryTypeInformation[] = {
+ { EfiReservedMemoryType, 0x004 },
+ { EfiRuntimeServicesData, 0x024 },
+ { EfiRuntimeServicesCode, 0x030 },
+ { EfiBootServicesCode, 0x180 },
+ { EfiBootServicesData, 0xF00 },
+ { EfiMaxMemoryType, 0x000 }
+};
+
+//
+// Module globals
+//
+CONST EFI_PEI_PPI_DESCRIPTOR mPpiListBootMode = {
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEfiPeiMasterBootModePpiGuid,
+ NULL
+};
+
+STATIC EFI_BOOT_MODE mBootMode = BOOT_WITH_FULL_CONFIGURATION;
+
+/**
+ Create Reserved type memory range hand off block.
+
+ @param MemoryBase memory base address.
+ @param MemoryLimit memory length.
+
+ @return VOID
+**/
+VOID
+AddReservedMemoryBaseSizeHob (
+ EFI_PHYSICAL_ADDRESS MemoryBase,
+ UINT64 MemorySize
+ )
+{
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_MEMORY_RESERVED,
+ EFI_RESOURCE_ATTRIBUTE_PRESENT |
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
+ EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_TESTED,
+ MemoryBase,
+ MemorySize
+ );
+}
+
+/**
+ Create system type memory range hand off block.
+
+ @param MemoryBase memory base address.
+ @param MemoryLimit memory length.
+
+ @return VOID
+**/
+VOID
+AddMemoryBaseSizeHob (
+ EFI_PHYSICAL_ADDRESS MemoryBase,
+ UINT64 MemorySize
+ )
+{
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_SYSTEM_MEMORY,
+ EFI_RESOURCE_ATTRIBUTE_PRESENT |
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
+ EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_TESTED,
+ MemoryBase,
+ MemorySize
+ );
+}
+
+/**
+ Create memory range hand off block.
+
+ @param MemoryBase memory base address.
+ @param MemoryLimit memory length.
+
+ @return VOID
+**/
+VOID
+AddMemoryRangeHob (
+ EFI_PHYSICAL_ADDRESS MemoryBase,
+ EFI_PHYSICAL_ADDRESS MemoryLimit
+ )
+{
+ AddMemoryBaseSizeHob (MemoryBase, (UINT64)(MemoryLimit - MemoryBase));
+}
+
+/**
+ Create memory type information hand off block.
+
+ @param VOID
+
+ @return VOID
+**/
+VOID
+MemMapInitialization (
+ VOID
+ )
+{
+ DEBUG ((DEBUG_INFO, "==%a==\n", __func__));
+ //
+ // Create Memory Type Information HOB
+ //
+ BuildGuidDataHob (
+ &gEfiMemoryTypeInformationGuid,
+ mDefaultMemoryTypeInformation,
+ sizeof (mDefaultMemoryTypeInformation)
+ );
+}
+
+/** Get the Rtc base address from the DT.
+
+ This function fetches the node referenced in the "loongson,ls7a-rtc"
+ property of the "reg" node and returns the base address of
+ the RTC.
+
+ @param [in] Fdt Pointer to a Flattened Device Tree (Fdt).
+ @param [out] RtcBaseAddress If success, contains the base address
+ of the Rtc.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_NOT_FOUND RTC info not found in DT.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+GetRtcAddress (
+ IN CONST VOID *Fdt,
+ OUT UINT64 *RtcBaseAddress
+ )
+{
+ INT32 Node;
+ INT32 Prev;
+ CONST CHAR8 *Type;
+ INT32 Len;
+ CONST UINT64 *RegProp;
+ EFI_STATUS Status;
+
+ if ((Fdt == NULL) || (fdt_check_header (Fdt) != 0)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = EFI_NOT_FOUND;
+ for (Prev = 0; ; Prev = Node) {
+ Node = fdt_next_node (Fdt, Prev, NULL);
+ if (Node < 0) {
+ break;
+ }
+
+ //
+ // Check for memory node
+ //
+ Type = fdt_getprop (Fdt, Node, "compatible", &Len);
+ if ((Type) && (AsciiStrnCmp (Type, "loongson,ls7a-rtc", Len) == 0)) {
+ //
+ // Get the 'reg' property of this node. For now, we will assume
+ // two 8 byte quantities for base and size, respectively.
+ //
+ RegProp = fdt_getprop (Fdt, Node, "reg", &Len);
+ if ((RegProp != 0) && (Len == (2 * sizeof (UINT64)))) {
+ *RtcBaseAddress = SwapBytes64 (RegProp[0]);
+ Status = RETURN_SUCCESS;
+ DEBUG ((DEBUG_INFO, "%a Len %d RtcBase %llx\n", __func__, Len,
*RtcBaseAddress));
+ break;
+ } else {
+ DEBUG ((DEBUG_ERROR, "%a: Failed to parse FDT rtc node\n", __func__));
+ break;
+ }
+ }
+ }
+
+ return Status;
+}
+
+/**
+ Misc Initialization.
+
+ @param VOID
+
+ @return VOID
+**/
+VOID
+MiscInitialization (
+ VOID
+ )
+{
+ CPUCFG_REG1_INFO_DATA CpucfgReg1Data;
+ UINT8 CpuPhysMemAddressWidth;
+
+ DEBUG ((DEBUG_INFO, "==%a==\n", __func__));
+
+ //
+ // Get the the CPU physical memory address width.
+ //
+ AsmCpucfg (CPUCFG_REG1_INFO, &CpucfgReg1Data.Uint32);
+
+ CpuPhysMemAddressWidth = (UINT8)(CpucfgReg1Data.Bits.PALEN + 1);
+
+ //
+ // Creat CPU HOBs.
+ //
+ BuildCpuHob (CpuPhysMemAddressWidth, FixedPcdGet8 (PcdPrePiCpuIoSize));
+}
+
+/**
+ add fdt hand off block.
+
+ @param VOID
+
+ @return VOID
+**/
+VOID
+AddFdtHob (
+ VOID
+ )
+{
+ VOID *Base;
+ VOID *NewBase;
+ UINTN FdtSize;
+ UINTN FdtPages;
+ UINT64 *FdtHobData;
+ UINT64 RtcBaseAddress;
+ RETURN_STATUS Status;
+
+ Base = (VOID *)(UINTN)PcdGet64 (PcdDeviceTreeInitialBaseAddress);
+ ASSERT (Base != NULL);
+
+ Status = GetRtcAddress (Base, &RtcBaseAddress);
+ if (RETURN_ERROR (Status)) {
+ return;
+ }
+
+ SaveRtcRegisterAddressHob (RtcBaseAddress);
+
+ FdtSize = fdt_totalsize (Base) + PcdGet32 (PcdDeviceTreeAllocationPadding);
+ FdtPages = EFI_SIZE_TO_PAGES (FdtSize);
+ NewBase = AllocatePages (FdtPages);
+ ASSERT (NewBase != NULL);
+ fdt_open_into (Base, NewBase, EFI_PAGES_TO_SIZE (FdtPages));
+
+ FdtHobData = BuildGuidHob (&gFdtHobGuid, sizeof *FdtHobData);
+ ASSERT (FdtHobData != NULL);
+ *FdtHobData = (UINTN)NewBase;
+}
+
+/**
+ Fetch the size of system memory from QEMU.
+
+ @param VOID
+
+ @return VOID
+**/
+VOID
+ReportSystemMemorySize (
+ VOID
+ )
+{
+ UINT64 RamSize;
+
+ QemuFwCfgSelectItem (QemuFwCfgItemRamSize);
+ RamSize = QemuFwCfgRead64 ();
+ DEBUG ((
+ DEBUG_INFO,
+ "%a: QEMU reports %dM system memory\n",
+ __func__,
+ RamSize/1024/1024
+ ));
+
+ //
+ // Assert false if QEMU report system memory size is less then 256M.
+ //
+ if (RamSize <= SIZE_256MB) {
+ ASSERT (FALSE);
+ }
+}
+
+/**
+ Perform Platform PEI initialization.
+
+ @param FileHandle Handle of the file being invoked.
+ @param PeiServices Describes the list of possible PEI Services.
+
+ @return EFI_SUCCESS The PEIM initialized successfully.
+**/
+EFI_STATUS
+EFIAPI
+InitializePlatform (
+ IN EFI_PEI_FILE_HANDLE FileHandle,
+ IN CONST EFI_PEI_SERVICES **PeiServices
+ )
+{
+ EFI_STATUS Status;
+ UINTN TranslationTableSize;
+ MEMORY_REGION_DESCRIPTOR *MemoryTable;
+
+ DEBUG ((DEBUG_INFO, "Platform PEIM Loaded\n"));
+
+ Status = PeiServicesSetBootMode (mBootMode);
+ ASSERT_EFI_ERROR (Status);
+
+ Status = PeiServicesInstallPpi (&mPpiListBootMode);
+ ASSERT_EFI_ERROR (Status);
+
+ ReportSystemMemorySize ();
+
+ PublishPeiMemory ();
+
+ PeiFvInitialization ();
+ InitializeRamRegions ();
+ MemMapInitialization ();
+
+ Status = PlatformHookSerialPortInitialize ();
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Collect numbers of on line processors and all of APs APIC ID
+ // TODO: Current, the NULL library is used, this library will be populated
in the future.
+ //
+ CollectAllProcessorResource ();
+
+ MiscInitialization ();
+
+ AddFdtHob ();
+
+ GetMemoryMapPolicy (&MemoryTable);
+ Status = ConfigureMemoryManagementUnit (
+ MemoryTable,
+ NULL,
+ &TranslationTableSize
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Open MMU.
+ //
+ DEBUG ((DEBUG_INFO, "Open MMU start.\n"));
+ CsrXChg (LOONGARCH_CSR_CRMD, BIT4, BIT4|BIT3);
+ DEBUG ((DEBUG_INFO, "Open MMU done.\n"));
+
+ MpInitLibInitialize ();
+
+ return EFI_SUCCESS;
+}
diff --git a/OvmfPkg/LoongArchVirt/PlatformPei/Platform.h
b/OvmfPkg/LoongArchVirt/PlatformPei/Platform.h
new file mode 100644
index 0000000000..0774b0e54a
--- /dev/null
+++ b/OvmfPkg/LoongArchVirt/PlatformPei/Platform.h
@@ -0,0 +1,146 @@
+/** @file
+ Platform PEI module include file.
+
+ Copyright (c) 2024 Loongson Technology Corporation Limited. All rights
reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef PLATFORM_H_
+#define PLATFORM_H_
+
+#include <IndustryStandard/E820.h>
+#include <IndustryStandard/Pci22.h>
+#include <Library/CpuMmuLib.h>
+
+typedef struct {
+ UINT64 BaseAddr;
+ UINT64 Length;
+ UINT32 Type;
+ UINT32 Reserved;
+} MEMMAP_ENTRY;
+
+VOID
+EFIAPI
+CollectAllProcessorResource (
+ VOID
+ );
+
+VOID
+EFIAPI
+SaveProcessorResource (
+ VOID
+ );
+
+/**
+ Create system type memory range hand off block.
+
+ @param MemoryBase memory base address.
+ @param MemoryLimit memory length.
+
+ @return VOID
+**/
+VOID
+AddMemoryBaseSizeHob (
+ EFI_PHYSICAL_ADDRESS MemoryBase,
+ UINT64 MemorySize
+ );
+
+/**
+ Create memory range hand off block.
+
+ @param MemoryBase memory base address.
+ @param MemoryLimit memory length.
+
+ @return VOID
+**/
+VOID
+AddMemoryRangeHob (
+ EFI_PHYSICAL_ADDRESS MemoryBase,
+ EFI_PHYSICAL_ADDRESS MemoryLimit
+ );
+
+/**
+ Create Reserved type memory range hand off block.
+
+ @param MemoryBase memory base address.
+ @param MemoryLimit memory length.
+
+ @return VOID
+**/
+VOID
+AddReservedMemoryBaseSizeHob (
+ EFI_PHYSICAL_ADDRESS MemoryBase,
+ UINT64 MemorySize
+ );
+
+/**
+ Publish PEI core memory
+
+ @return EFI_SUCCESS The PEIM initialized successfully.
+**/
+EFI_STATUS
+PublishPeiMemory (
+ VOID
+ );
+
+/**
+ Publish system RAM and reserve memory regions
+
+ @return VOID
+**/
+VOID
+InitializeRamRegions (
+ VOID
+ );
+
+/**
+ Publish PEI & DXE (Decompressed) Memory based FVs to let PEI
+ and DXE know about them.
+
+ @retval EFI_SUCCESS Platform PEI FVs were initialized successfully.
+**/
+EFI_STATUS
+PeiFvInitialization (
+ VOID
+ );
+
+/**
+ Gets the Virtual Memory Map of corresponding platforms.
+
+ This Virtual Memory Map is used by initialize the MMU on corresponding
+ platforms.
+
+ @param[out] MemoryTable Array of MEMORY_REGION_DESCRIPTOR
+ describing a Physical-to-Virtual Memory
+ mapping. This array must be ended by a
+ zero-filled entry. The allocated memory
+ will not be freed.
+**/
+VOID
+EFIAPI
+GetMemoryMapPolicy (
+ OUT MEMORY_REGION_DESCRIPTOR **MemoryTable
+ );
+
+/**
+ Create a page table and initialize the memory management unit(MMU).
+
+ @param[in] MemoryTable A pointer to a memory ragion table.
+ @param[out] TranslationTableBase A pointer to a translation table base
address.
+ @param[out] TranslationTableSize A pointer to a translation table base size.
+
+ @retval EFI_SUCCESS Configure MMU successfully.
+ EFI_INVALID_PARAMETER MemoryTable is NULL.
+ EFI_UNSUPPORTED Out of memory space or size not aligned.
+**/
+EFI_STATUS
+EFIAPI
+ConfigureMemoryManagementUnit (
+ IN MEMORY_REGION_DESCRIPTOR *MemoryTable,
+ OUT VOID **TranslationTableBase OPTIONAL,
+ OUT UINTN *TranslationTableSize OPTIONAL
+ );
+
+#endif // PLATFORM_H_
diff --git a/OvmfPkg/LoongArchVirt/PlatformPei/PlatformPei.inf
b/OvmfPkg/LoongArchVirt/PlatformPei/PlatformPei.inf
new file mode 100644
index 0000000000..e793a4da85
--- /dev/null
+++ b/OvmfPkg/LoongArchVirt/PlatformPei/PlatformPei.inf
@@ -0,0 +1,72 @@
+## @file
+# Platform PEI driver
+#
+# Copyright (c) 2024 Loongson Technology Corporation Limited. All rights
reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 1.29
+ BASE_NAME = PlatformPei
+ FILE_GUID = 4c0e81e5-e8e3-4eef-b24b-19b686e9ab53
+ MODULE_TYPE = PEIM
+ VERSION_STRING = 1.0
+ ENTRY_POINT = InitializePlatform
+
+#
+# VALID_ARCHITECTURES = LOONGARCH64
+#
+
+[Sources]
+ Fv.c
+ MemDetect.c
+ Platform.c
+
+[Packages]
+ EmbeddedPkg/EmbeddedPkg.dec
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ OvmfPkg/OvmfPkg.dec
+ UefiCpuPkg/UefiCpuPkg.dec
+
+[Ppis]
+ gEfiPeiMasterBootModePpiGuid
+
+[Guids]
+ gEfiMemoryTypeInformationGuid
+ gFdtHobGuid
+
+[LibraryClasses]
+ BaseMemoryLib
+ CollectApResourceLib
+ CpuMmuLib
+ DebugLib
+ HobLib
+ IoLib
+ MemoryAllocationLib
+ MpInitLib
+ PcdLib
+ PeiResourcePublicationLib
+ PeiServicesLib
+ PeiServicesTablePointerLib
+ PeimEntryPoint
+ PlatformHookLib
+ QemuFwCfgLib
+ RealTimeClockLib
+ TimerLib
+
+[Pcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress
+ gUefiOvmfPkgTokenSpaceGuid.PcdDeviceTreeAllocationPadding
+ gEfiMdeModulePkgTokenSpaceGuid.PcdNullPointerDetectionPropertyMask
+
+[FixedPcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize
+ gEmbeddedTokenSpaceGuid.PcdPrePiCpuIoSize
+ gUefiCpuPkgTokenSpaceGuid.PcdCpuExceptionVectorBaseAddress
+
+[Depex]
+ TRUE
--
2.27.0
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#114561): https://edk2.groups.io/g/devel/message/114561
Mute This Topic: https://groups.io/mt/103971687/21656
Group Owner: devel+ow...@edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
