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| author | Abner Chang <abner.chang@hpe.com> | 2020-04-07 16:12:04 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-05-07 03:17:15 +0000 |
| commit | 86c4f437d862f795e3743e97e255aede3ba570fe (patch) | |
| tree | 4c6197be53482861323cee5d906a149f12d8bbbb /MdeModulePkg/Core | |
| parent | 00acc6cbf9d260479b6e1deb16935b47f422c16f (diff) | |
| download | edk2-86c4f437d862f795e3743e97e255aede3ba570fe.tar.gz edk2-86c4f437d862f795e3743e97e255aede3ba570fe.tar.bz2 edk2-86c4f437d862f795e3743e97e255aede3ba570fe.zip | |
MdeModulePkg/DxeIplPeim : RISC-V platform level DxeIPL
Implementation of RISC-V DxeIPL.
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2672
Signed-off-by: Abner Chang <abner.chang@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
Co-authored-by: Daniel Helmut <daniel.schaefer@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
Diffstat (limited to 'MdeModulePkg/Core')
| -rw-r--r-- | MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | 6 | ||||
| -rw-r--r-- | MdeModulePkg/Core/DxeIplPeim/RiscV64/DxeLoadFunc.c | 74 |
2 files changed, 79 insertions, 1 deletions
diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf index 98bc17fc9d..3f17028546 100644 --- a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf +++ b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf @@ -7,6 +7,7 @@ #
# Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
+# Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -25,7 +26,7 @@ #
# The following information is for reference only and not required by the build tools.
#
-# VALID_ARCHITECTURES = IA32 X64 EBC (EBC is for build only) AARCH64
+# VALID_ARCHITECTURES = IA32 X64 EBC (EBC is for build only) AARCH64 RISCV64
#
[Sources]
@@ -49,6 +50,9 @@ [Sources.ARM, Sources.AARCH64]
Arm/DxeLoadFunc.c
+[Sources.RISCV64]
+ RiscV64/DxeLoadFunc.c
+
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
diff --git a/MdeModulePkg/Core/DxeIplPeim/RiscV64/DxeLoadFunc.c b/MdeModulePkg/Core/DxeIplPeim/RiscV64/DxeLoadFunc.c new file mode 100644 index 0000000000..2ce52eb0ec --- /dev/null +++ b/MdeModulePkg/Core/DxeIplPeim/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>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "DxeIpl.h"
+
+/**
+ 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;
+ EFI_STATUS Status;
+ //
+ //
+ // 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.", __FUNCTION__));
+ 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);
+
+ //
+ // End of PEI phase signal
+ //
+ Status = PeiServicesInstallPpi (&gEndOfPeiSignalPpi);
+ if (EFI_ERROR (Status)) {
+ DEBUG((DEBUG_ERROR, "%a: Fail to signal End of PEI event.", __FUNCTION__));
+ ASSERT(FALSE);
+ }
+ //
+ // 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
+ );
+}
+
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