From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: hpe.com, ip: 148.163.147.86, mailfrom: prvs=0150651a61=abner.chang@hpe.com) Received: from mx0a-002e3701.pphosted.com (mx0a-002e3701.pphosted.com [148.163.147.86]) by groups.io with SMTP; Wed, 04 Sep 2019 04:13:50 -0700 Received: from pps.filterd (m0148663.ppops.net [127.0.0.1]) by mx0a-002e3701.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x84BBh3e002226 for ; Wed, 4 Sep 2019 11:13:49 GMT Received: from g2t2354.austin.hpe.com (g2t2354.austin.hpe.com [15.233.44.27]) by mx0a-002e3701.pphosted.com with ESMTP id 2ut7enj5df-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 04 Sep 2019 11:13:49 +0000 Received: from g2t2360.austin.hpecorp.net (g2t2360.austin.hpecorp.net [16.196.225.135]) by g2t2354.austin.hpe.com (Postfix) with ESMTP id 19D18A8 for ; Wed, 4 Sep 2019 11:13:49 +0000 (UTC) Received: from UB16Abner.asiapacific.hpqcorp.net (ub16abner.asiapacific.hpqcorp.net [15.119.209.44]) by g2t2360.austin.hpecorp.net (Postfix) with ESMTP id 309BD39; Wed, 4 Sep 2019 11:13:47 +0000 (UTC) From: "Abner Chang" To: devel@edk2.groups.io Cc: abner.chang@hpe.com Subject: [edk2-staging/RISC-V-V2 PATCH v1 19/22]: MdeModulePkg/DxeIplPeim:RISC-V platform DXEIPL. Date: Wed, 4 Sep 2019 18:43:14 +0800 Message-Id: <1567593797-26216-20-git-send-email-abner.chang@hpe.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1567593797-26216-1-git-send-email-abner.chang@hpe.com> References: <1567593797-26216-1-git-send-email-abner.chang@hpe.com> X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-HPE-SCL: -1 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.70,1.0.8 definitions=2019-09-04_03:2019-09-03,2019-09-04 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 bulkscore=0 clxscore=1015 mlxscore=0 phishscore=0 mlxlogscore=771 priorityscore=1501 malwarescore=0 spamscore=0 impostorscore=0 suspectscore=1 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1906280000 definitions=main-1909040113 - Implement RISC-V DxeIpl. - Provide DxeIpl platform implementation-specifc library for RISC-V platform. Two libraries are provided in this commit, * Defualt library which simply switch stack and transfer control to DXE core. * Switch stack, privilege mode and then transfer control to DXE core through RISC-V opensbi. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Abner Chang --- MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | 13 +++- MdeModulePkg/Core/DxeIplPeim/RiscV64/DxeLoadFunc.c | 76 ++++++++++++++++++++++ 2 files changed, 88 insertions(+), 1 deletion(-) create mode 100644 MdeModulePkg/Core/DxeIplPeim/RiscV64/DxeLoadFunc.c diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf index 98bc17f..5532323 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.
# Copyright (c) 2017, AMD Incorporated. All rights reserved.
+# Copyright (c) 2016 - 2019, Hewlett Packard Enterprise Development LP. All rights reserved.
# # 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 @@ -56,6 +60,9 @@ [Packages.ARM, Packages.AARCH64] ArmPkg/ArmPkg.dec +[Packages.RISCV64] + RiscVPkg/RiscVPkg.dec + [LibraryClasses] PcdLib MemoryAllocationLib @@ -75,6 +82,10 @@ [LibraryClasses.ARM, LibraryClasses.AARCH64] ArmMmuLib +[LibraryClasses.RISCV64] + RiscVPlatformDxeIplLib + RiscVOpensbiLib + [Ppis] gEfiDxeIplPpiGuid ## PRODUCES gEfiPeiDecompressPpiGuid ## PRODUCES diff --git a/MdeModulePkg/Core/DxeIplPeim/RiscV64/DxeLoadFunc.c b/MdeModulePkg/Core/DxeIplPeim/RiscV64/DxeLoadFunc.c new file mode 100644 index 0000000..934dfa5 --- /dev/null +++ b/MdeModulePkg/Core/DxeIplPeim/RiscV64/DxeLoadFunc.c @@ -0,0 +1,76 @@ +/** @file + RISC-V specific functionality for DxeLoad. + + Copyright (c) 2016 - 2019, Hewlett Packard Enterprise Development LP. All rights reserved.
+ + This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +**/ + +#include "DxeIpl.h" +#include "Library/RiscVPlatformDxeIpl.h" + +typedef +VOID* +(EFIAPI *DXEENTRYPOINT) ( + IN VOID *HobStart + ); + +/** + 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)); + 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); + + DEBUG ((EFI_D_INFO, "DXE Core new stack at %x, stack pointer at %x\n", BaseOfStack, TopOfStack)); + + // + // Transfer the control to the entry point of DxeCore. + // + RiscVPlatformHandOffToDxeCore (BaseOfStack, TopOfStack, DxeCoreEntryPoint, HobList); +} + -- 2.7.4