diff options
3 files changed, 112 insertions, 0 deletions
diff --git a/UefiPayloadPkg/UefiPayloadEntry/FitUniversalPayloadEntry.inf b/UefiPayloadPkg/UefiPayloadEntry/FitUniversalPayloadEntry.inf index 1838b4f33d..5887830e3f 100644 --- a/UefiPayloadPkg/UefiPayloadEntry/FitUniversalPayloadEntry.inf +++ b/UefiPayloadPkg/UefiPayloadEntry/FitUniversalPayloadEntry.inf @@ -38,6 +38,10 @@ X64/VirtualMemory.c
X64/DxeLoadFuncFit.c
+[Sources.RISCV64]
+ RiscV64/DxeLoadFunc.c
+ RiscV64/DxeLoadFuncFit.c
+
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
diff --git a/UefiPayloadPkg/UefiPayloadEntry/RiscV64/DxeLoadFunc.c b/UefiPayloadPkg/UefiPayloadEntry/RiscV64/DxeLoadFunc.c new file mode 100644 index 0000000000..ecd2493371 --- /dev/null +++ b/UefiPayloadPkg/UefiPayloadEntry/RiscV64/DxeLoadFunc.c @@ -0,0 +1,74 @@ +/** @file
+ RISC-V specific functionality for DxeLoad.
+
+ Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+ Copyright (c) 2023, Rivos Inc
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#include <PiPei.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
+#include <Library/HobLib.h>
+#include "UefiPayloadEntry.h"
+
+#define STACK_SIZE 0x20000
+
+/**
+ Transfers control to DxeCore.
+
+ This function performs a CPU architecture specific operations to execute
+ the entry point of DxeCore with the parameters of HobList.
+ It also installs EFI_END_OF_PEI_PPI to signal the end of PEI phase.
+
+ @param DxeCoreEntryPoint The entry point of DxeCore.
+ @param HobList The start of HobList passed to DxeCore.
+
+**/
+VOID
+HandOffToDxeCore (
+ IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,
+ IN EFI_PEI_HOB_POINTERS HobList
+ )
+{
+ VOID *BaseOfStack;
+ VOID *TopOfStack;
+
+ //
+ //
+ // Allocate 128KB for the Stack
+ //
+ BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));
+ if (BaseOfStack == NULL) {
+ DEBUG ((DEBUG_ERROR, "%a: Can't allocate memory for stack.", __func__));
+ ASSERT (FALSE);
+ }
+
+ //
+ // Compute the top of the stack we were allocated. Pre-allocate a UINTN
+ // for safety.
+ //
+ TopOfStack = (VOID *)((UINTN)BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT);
+ TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
+
+ //
+ // Update the contents of BSP stack HOB to reflect the real stack info passed to DxeCore.
+ //
+ UpdateStackHob ((EFI_PHYSICAL_ADDRESS)(UINTN)BaseOfStack, STACK_SIZE);
+
+ DEBUG ((DEBUG_INFO, "DXE Core new stack at %x, stack pointer at %x\n", BaseOfStack, TopOfStack));
+
+ //
+ // Transfer the control to the entry point of DxeCore.
+ //
+ SwitchStack (
+ (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
+ HobList.Raw,
+ NULL,
+ TopOfStack
+ );
+}
diff --git a/UefiPayloadPkg/UefiPayloadEntry/RiscV64/DxeLoadFuncFit.c b/UefiPayloadPkg/UefiPayloadEntry/RiscV64/DxeLoadFuncFit.c new file mode 100644 index 0000000000..e74c4fae4c --- /dev/null +++ b/UefiPayloadPkg/UefiPayloadEntry/RiscV64/DxeLoadFuncFit.c @@ -0,0 +1,34 @@ +/** @file
+ x64-specifc functionality for DxeLoad.
+
+Copyright (c) 2006 - 2020, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiPei.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
+#include <Library/HobLib.h>
+#include <Library/FdtLib.h>
+#include <Library/PcdLib.h>
+#include "UefiPayloadEntry.h"
+
+/**
+ Entry point to the C language phase of UEFI payload.
+ @param[in] Param1, Hartid which is ignored
+ @param[in] Param2, Device Tree
+ @retval It will not return if SUCCESS, and return error when passing bootloader parameter.
+**/
+EFI_STATUS
+EFIAPI
+_ModuleEntryPoint (
+ IN UINTN Param1,
+ IN UINTN Param2
+ )
+{
+ return FitUplEntryPoint (Param2);
+}
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