From nobody Sun Feb 8 06:21:18 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) client-ip=66.175.222.108; envelope-from=bounce+27952+95734+1787277+3901457@groups.io; helo=mail02.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+95734+1787277+3901457@groups.io ARC-Seal: i=1; a=rsa-sha256; t=1667136553; cv=none; d=zohomail.com; s=zohoarc; b=LSsswPQ6fkx9d1xcUt6wfV9ZbhSTcmqj4vWpXfYaIzoakpQdH8anvVhliNXub7BpA2nER5qyzGpGSZjGps6TmAxGHvhbMnrMIf9Q2V1ZGFa/Nl/vSK20XgYVKMeJlnuQsjdYm6fXQIc5qNOLv+J03INoVh2VXPqas6GEjONKTFU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1667136553; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:References:Sender:Subject:To; bh=CcljMRou3RME5/ZZDaFrvwW2UxqciNfI/lP2RlOZ9pE=; b=JP4HiO400IJJVVoLVGSPgLqq7I0+Te5RPK6tgvoRNcfEG4Wr9FaieqltTObli2dLXyym4+JBmYOK0+j/AfCEAaGtv3w/C6LY5BXwy3qJmKfeqdQXtN1pRiHStrl2Y3KH7wFuCZcuRcqqzJYMLfqOjzIaN9JX1d1vAAKvdg7RxBE= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+95734+1787277+3901457@groups.io Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1667136553056463.85543507289196; Sun, 30 Oct 2022 06:29:13 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id p0VLYY1788612xmSDVFBrUu6; Sun, 30 Oct 2022 06:29:12 -0700 X-Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) by mx.groups.io with SMTP id smtpd.web11.8322.1667136552122702102 for ; Sun, 30 Oct 2022 06:29:12 -0700 X-Received: by mail-pl1-f181.google.com with SMTP id 4so8697311pli.0 for ; Sun, 30 Oct 2022 06:29:12 -0700 (PDT) X-Gm-Message-State: n1r6AXi9FfN2KbZHWwtSZ8LJx1787277AA= X-Google-Smtp-Source: AMsMyM4xZKb+zU9AO9hNK75jFJvtIOrwxXZVMPyl20HBXjHwctEGJ8AfPVJmCTMgFZ8ck6WEljDdgg== X-Received: by 2002:a17:902:848c:b0:17a:b4c0:a02b with SMTP id c12-20020a170902848c00b0017ab4c0a02bmr9276925plo.122.1667136551399; Sun, 30 Oct 2022 06:29:11 -0700 (PDT) X-Received: from localhost.localdomain ([49.206.12.236]) by smtp.gmail.com with ESMTPSA id r10-20020aa79eca000000b0056b6a22d6c9sm2612330pfq.212.2022.10.30.06.29.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Oct 2022 06:29:11 -0700 (PDT) From: "Sunil V L" To: devel@edk2.groups.io Cc: Ard Biesheuvel , Jiewen Yao , Jordan Justen , Gerd Hoffmann , Rebecca Cran , Peter Grehan , Daniel Schaefer Subject: [edk2-devel] [edk2-staging/RiscV64QemuVirt PATCH V5 08/30] OvmfPkg/ResetSystemLib: Add support for RISC-V Date: Sun, 30 Oct 2022 18:58:20 +0530 Message-Id: <20221030132842.54077-9-sunilvl@ventanamicro.com> In-Reply-To: <20221030132842.54077-1-sunilvl@ventanamicro.com> References: <20221030132842.54077-1-sunilvl@ventanamicro.com> MIME-Version: 1.0 Precedence: Bulk List-Unsubscribe: List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,sunilvl@ventanamicro.com Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1667136552; bh=J26nky2FGefp4bdoIu25D8/04vJz/+/cCb4rdO2nvcs=; h=Cc:Date:From:Reply-To:Subject:To; b=FCLCii7PteImGJuECRbnVn8RkBhnnYv6Ue9oxcuLw5v/jYJgyagb0rHjqbluNyg8hoA Zi+UMjtx5tyzya1vhkEBhycIrBUVsRvphEu7HcAhWsZ1YV+o3ijTdsF4QlfYOOIkWY7I+ R+0rbEbzt9UkT5RbdUEEd0Jl+M2PbjAhLYg= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1667136554032100033 Content-Type: text/plain; charset="utf-8" REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3D4076 This is mostly copied from edk2-platforms/Platform/RISC-V/PlatformPkg/Library/ResetSystemLib Cc: Ard Biesheuvel Cc: Jiewen Yao Cc: Jordan Justen Cc: Gerd Hoffmann Cc: Rebecca Cran Cc: Peter Grehan Cc: Daniel Schaefer Signed-off-by: Sunil V L --- OvmfPkg/Library/ResetSystemLib/BaseResetSystemLib.inf | 6 + OvmfPkg/Library/ResetSystemLib/DxeResetSystemLib.inf | 9 +- OvmfPkg/Library/ResetSystemLib/RiscV64/DxeResetShutdown.c | 20 +++ OvmfPkg/Library/ResetSystemLib/RiscV64/ResetSystemLib.c | 128 ++++++++++= ++++++++++ 4 files changed, 162 insertions(+), 1 deletion(-) diff --git a/OvmfPkg/Library/ResetSystemLib/BaseResetSystemLib.inf b/OvmfPk= g/Library/ResetSystemLib/BaseResetSystemLib.inf index a554c6b68cfe..9b2afc36dd95 100644 --- a/OvmfPkg/Library/ResetSystemLib/BaseResetSystemLib.inf +++ b/OvmfPkg/Library/ResetSystemLib/BaseResetSystemLib.inf @@ -25,6 +25,9 @@ [Sources.IA32, Sources.X64] Ia32X64/BaseResetShutdown.c Ia32X64/ResetSystemLib.c =20 +[Sources.RISCV64] + RiscV64/ResetSystemLib.c + [Packages] MdeModulePkg/MdeModulePkg.dec MdePkg/MdePkg.dec @@ -36,3 +39,6 @@ [LibraryClasses] IoLib PciLib TimerLib + +[LibraryClasses.RISCV64] + RiscVSbiLib diff --git a/OvmfPkg/Library/ResetSystemLib/DxeResetSystemLib.inf b/OvmfPkg= /Library/ResetSystemLib/DxeResetSystemLib.inf index acf9c6a93552..c012a163c61a 100644 --- a/OvmfPkg/Library/ResetSystemLib/DxeResetSystemLib.inf +++ b/OvmfPkg/Library/ResetSystemLib/DxeResetSystemLib.inf @@ -20,13 +20,17 @@ [Defines] # The following information is for reference only and not required by the = build # tools. # -# VALID_ARCHITECTURES =3D IA32 X64 +# VALID_ARCHITECTURES =3D IA32 X64 RISCV64 # =20 [Sources.IA32, Sources.X64] Ia32X64/DxeResetShutdown.c Ia32X64/ResetSystemLib.c =20 +[Sources.RISCV64] + RiscV64/ResetSystemLib.c + RiscV64/DxeResetShutdown.c + [Packages] MdeModulePkg/MdeModulePkg.dec MdePkg/MdePkg.dec @@ -39,5 +43,8 @@ [LibraryClasses] PcdLib TimerLib =20 +[LibraryClasses.RISCV64] + RiscVSbiLib + [Pcd] gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId ## CONSUMES diff --git a/OvmfPkg/Library/ResetSystemLib/RiscV64/DxeResetShutdown.c b/Ov= mfPkg/Library/ResetSystemLib/RiscV64/DxeResetShutdown.c new file mode 100644 index 000000000000..027e235cad11 --- /dev/null +++ b/OvmfPkg/Library/ResetSystemLib/RiscV64/DxeResetShutdown.c @@ -0,0 +1,20 @@ +/** @file + DXE Reset System Library Shutdown API implementation for OVMF. + + Copyright (C) 2020, Red Hat, Inc. + Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent +**/ + +#include // CpuDeadLoop() +#include // ResetShutdown() + +EFI_STATUS +EFIAPI +DxeResetInit ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable + ) +{ + return EFI_SUCCESS; +} diff --git a/OvmfPkg/Library/ResetSystemLib/RiscV64/ResetSystemLib.c b/Ovmf= Pkg/Library/ResetSystemLib/RiscV64/ResetSystemLib.c new file mode 100644 index 000000000000..14f7653aa8de --- /dev/null +++ b/OvmfPkg/Library/ResetSystemLib/RiscV64/ResetSystemLib.c @@ -0,0 +1,128 @@ +/** @file + Reset System Library functions for RISC-V + + Copyright (c) 2021, Hewlett Packard Development LP. All rights reserved.=
+ SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include +#include +#include + +/** + This function causes a system-wide reset (cold reset), in which + all circuitry within the system returns to its initial state. This type = of reset + is asynchronous to system operation and operates without regard to + cycle boundaries. + + If this function returns, it means that the system does not support cold= reset. +**/ +VOID +EFIAPI +ResetCold ( + VOID + ) +{ + // Warm Reset via SBI ecall + SbiSystemReset (SBI_SRST_RESET_TYPE_COLD_REBOOT, SBI_SRST_RESET_REASON_N= ONE); +} + +/** + This function causes a system-wide initialization (warm reset), in which= all processors + are set to their initial state. Pending cycles are not corrupted. + + If this function returns, it means that the system does not support warm= reset. +**/ +VOID +EFIAPI +ResetWarm ( + VOID + ) +{ + // Warm Reset via SBI ecall + SbiSystemReset (SBI_SRST_RESET_TYPE_WARM_REBOOT, SBI_SRST_RESET_REASON_N= ONE); +} + +/** + This function causes the system to enter a power state equivalent + to the ACPI G2/S5 or G3 states. + + If this function returns, it means that the system does not support shut= down reset. +**/ +VOID +EFIAPI +ResetShutdown ( + VOID + ) +{ + // Shut down via SBI ecall + SbiSystemReset (SBI_SRST_RESET_TYPE_SHUTDOWN, SBI_SRST_RESET_REASON_NONE= ); +} + +/** + This function causes a systemwide reset. The exact type of the reset is + defined by the EFI_GUID that follows the Null-terminated Unicode string = passed + into ResetData. If the platform does not recognize the EFI_GUID in Reset= Data + the platform must pick a supported reset type to perform. The platform m= ay + optionally log the parameters from any non-normal reset that occurs. + + @param[in] DataSize The size, in bytes, of ResetData. + @param[in] ResetData The data buffer starts with a Null-terminated str= ing, + followed by the EFI_GUID. +**/ +VOID +EFIAPI +ResetPlatformSpecific ( + IN UINTN DataSize, + IN VOID *ResetData + ) +{ + // + // Can map to OpenSBI vendor or platform specific reset type. + // + return; +} + +/** + The ResetSystem function resets the entire platform. + + @param[in] ResetType The type of reset to perform. + @param[in] ResetStatus The status code for the reset. + @param[in] DataSize The size, in bytes, of ResetData. + @param[in] ResetData For a ResetType of EfiResetCold, EfiResetWarm,= or EfiResetShutdown + the data buffer starts with a Null-terminated = string, optionally + followed by additional binary data. The string= is a description + that the caller may use to further indicate th= e reason for the + system reset. +**/ +VOID +EFIAPI +ResetSystem ( + IN EFI_RESET_TYPE ResetType, + IN EFI_STATUS ResetStatus, + IN UINTN DataSize, + IN VOID *ResetData OPTIONAL + ) +{ + switch (ResetType) { + case EfiResetWarm: + ResetWarm (); + break; + + case EfiResetCold: + ResetCold (); + break; + + case EfiResetShutdown: + ResetShutdown (); + return; + + case EfiResetPlatformSpecific: + ResetPlatformSpecific (DataSize, ResetData); + return; + + default: + return; + } +} --=20 2.38.0 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#95734): https://edk2.groups.io/g/devel/message/95734 Mute This Topic: https://groups.io/mt/94664309/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-