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| author | Chao Li <lichao@loongson.cn> | 2021-11-12 15:19:30 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2022-10-14 02:16:33 +0000 |
| commit | 2ce4bfb843eb769a6450e04a8f5be6289db160fd (patch) | |
| tree | e582e24747ba442e473cf5de4b83094c4b9811d0 /MdeModulePkg | |
| parent | 380821a949d7d76a14edb7326f3f756c16d608ad (diff) | |
| download | edk2-2ce4bfb843eb769a6450e04a8f5be6289db160fd.tar.gz edk2-2ce4bfb843eb769a6450e04a8f5be6289db160fd.tar.bz2 edk2-2ce4bfb843eb769a6450e04a8f5be6289db160fd.zip | |
MdeModulePkg/DxeIplPeim : LoongArch DxeIPL implementation.
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4053
Implement LoongArch DxeIPL instance.
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Guomin Jiang <guomin.jiang@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Co-authored-by: Baoqi Zhang <zhangbaoqi@loongson.cn>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | 6 | ||||
| -rw-r--r-- | MdeModulePkg/Core/DxeIplPeim/LoongArch64/DxeLoadFunc.c | 63 |
2 files changed, 68 insertions, 1 deletions
diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf index 19b8a4c8ae..052ea0ec1a 100644 --- a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf +++ b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf @@ -8,6 +8,7 @@ # 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>
+# Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -26,7 +27,7 @@ #
# 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 RISCV64
+# VALID_ARCHITECTURES = IA32 X64 EBC (EBC is for build only) AARCH64 RISCV64 LOONGARCH64
#
[Sources]
@@ -53,6 +54,9 @@ [Sources.RISCV64]
RiscV64/DxeLoadFunc.c
+[Sources.LOONGARCH64]
+ LoongArch64/DxeLoadFunc.c
+
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
diff --git a/MdeModulePkg/Core/DxeIplPeim/LoongArch64/DxeLoadFunc.c b/MdeModulePkg/Core/DxeIplPeim/LoongArch64/DxeLoadFunc.c new file mode 100644 index 0000000000..95d3af19ea --- /dev/null +++ b/MdeModulePkg/Core/DxeIplPeim/LoongArch64/DxeLoadFunc.c @@ -0,0 +1,63 @@ +/** @file
+ LoongArch specifc functionality for DxeLoad.
+
+ Copyright (c) 2022, Loongson Technology Corporation Limited. 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[in] DxeCoreEntryPoint The entry point of DxeCore.
+ @param[in] 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));
+ ASSERT (BaseOfStack != NULL);
+
+ //
+ // 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);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Update the contents of BSP stack HOB to reflect the real stack info passed to DxeCore.
+ //
+ UpdateStackHob ((EFI_PHYSICAL_ADDRESS)(UINTN)BaseOfStack, STACK_SIZE);
+
+ SwitchStack (
+ (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
+ HobList.Raw,
+ NULL,
+ TopOfStack
+ );
+}
|