From patchwork Wed Aug 12 23:47:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Atish Patra X-Patchwork-Id: 254291 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3945CC433DF for ; Wed, 12 Aug 2020 23:48:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DA15D20855 for ; Wed, 12 Aug 2020 23:48:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="BnPZCyJh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726518AbgHLXsc (ORCPT ); Wed, 12 Aug 2020 19:48:32 -0400 Received: from esa3.hgst.iphmx.com ([216.71.153.141]:52574 "EHLO esa3.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726078AbgHLXsb (ORCPT ); Wed, 12 Aug 2020 19:48:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1597276112; x=1628812112; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=dEghlRySJv0naCSJ5pOthMzV6deTXTzywbu+fNT2jzI=; b=BnPZCyJh5t6SZ2Lb3wgI4JoLaBzOmYRB/dYSXOWllEzGv4I0GndcoxBU ApXS14xoila1RTUHCgCV/DS4J9SzzoKJCGevyd2031Kmc3XdUZpdHCBn6 /Ac7JTlfYSBd/tBtHfYngyCSn8GJzAVwtMkk+L1nM1VARKxDE6TqBQ030 1ovo3bWWhVKTJvjD5Bh/H8Zy7oujHJJi3v9LD7gVrSBhkoko+QOTXmpxL klMF2yeNTWJmTmFIrAUsq6bJRPDYSUJIpjxpyoJr65oEbuGA2IboEWRzY 3UDcd9IgaE28h9fdF1eAEfRm27cjlUjAxLcVsiuBuaJ1wSre6yqZCcJ4B g==; IronPort-SDR: Kh3XXGlx0LU3UXDWccd6Lk9Vyj21AZfQ5mPojpgSCxjfUY2/GdWE7ycU6C2cKvRQMWL4debcoJ IJ3y+M2ER71DT57mEGjhV5ZsuwVboyUu1BvQULEelO5KOxsTbADrvKCddX52tVRG1nNc/DfzRJ 23fQhgTEgDMnGX3zFhHoOL9gMTO02vn/o5yAJ56f1iuJcAelPsa57jqKN4kdRTXQvGraZCQxLd ymaKZE2GMNUqx95Xq/anw4nfiAJBhyHQ22uTGSe8n4RZ+2YdTsacC9asDHtoG2vvjCW/6RehDh JnQ= X-IronPort-AV: E=Sophos;i="5.76,305,1592841600"; d="scan'208";a="149145657" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 13 Aug 2020 07:48:31 +0800 IronPort-SDR: YG/YWOdaEpQCATfU3dHTdFu4ELRlhnINQqgh6mW+rBzjFXzmlb7a/nDoqYvGj96e7kHHlkitXn IWsmrSiPy4HA== Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2020 16:35:38 -0700 IronPort-SDR: klRBSoDYtECDlzD14I2TIC4BC0mHg70L9V5JGREARs9SNm4ppNZZYRgwcgpNouNh086ahnsrq+ 4c4dkAdFXdbg== WDCIronportException: Internal Received: from usa002576.ad.shared (HELO jedi-01.hgst.com) ([10.86.59.59]) by uls-op-cesaip01.wdc.com with ESMTP; 12 Aug 2020 16:48:28 -0700 From: Atish Patra To: linux-kernel@vger.kernel.org Cc: Atish Patra , Albert Ou , Alistair Francis , Andrew Morton , Anup Patel , Ard Biesheuvel , Arvind Sankar , Borislav Petkov , Greentime Hu , Ingo Molnar , Kees Cook , linux-efi@vger.kernel.org, linux-riscv@lists.infradead.org, fwts-devel@lists.ubuntu.com, Mao Han , Masahiro Yamada , Michal Simek , Mike Rapoport , Nick Desaulniers , Palmer Dabbelt , Paul Walmsley , Steven Price , Waiman Long , Will Deacon , Daniel Schaefer , "abner.chang@hpe.com" Subject: [PATCH v5 0/9] Add UEFI support for RISC-V Date: Wed, 12 Aug 2020 16:47:49 -0700 Message-Id: <20200812234758.3563-1-atish.patra@wdc.com> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Sender: linux-efi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-efi@vger.kernel.org This series adds UEFI support for RISC-V. Linux kernel: master(00e4db51259a) U-Boot: v2020.07 OpenSBI: master Patch 1-3 are generic riscv feature addition required for UEFI support. Patch 4-7 adds the efi stub support for RISC-V which was reviewed few months back. https://www.spinics.net/lists/linux-efi/msg19144.html Patch 8 just renames arm-init code so that it can be used across different architectures. Patch 9 adds the runtime services for RISC-V. The working set of patches can also be found in following git repo. https://github.com/atishp04/linux/tree/uefi_riscv_5.10_v5 The patches have been verified on following platforms: 1. Qemu (both RV32 & RV64) for the following bootflow OpenSBI->U-Boot->Linux EDK2->Linux 2. HiFive unleashed using (RV64) for the following bootflow OpenSBI->U-Boot->Linux EDK2->Linux Thanks Abner & Daniel for all work done for EDK2. The EDK2 instructions are available here. https://github.com/JohnAZoidberg/riscv-edk2-docker/ Note: 1. Currently, EDK2 RISC-V port doesn't support OVMF package. That's why EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER should be enabled to load initrd via commandline until OVMF patches are available. 2. For RV32, maximum allocated memory should be 1G as RISC-V kernel can not map beyond 1G of physical memory for RV32. 3. Runtime services have been verified with fwts on EDK2. *********************************************************************** [root@fedora-riscv ~]# fwts uefirtvariable Running 1 tests, results appended to results.log Test: UEFI Runtime service variable interface tests. Test UEFI RT service get variable interface. 1 passed Test UEFI RT service get next variable name interface. 4 passed Test UEFI RT service set variable interface. 7 passed, 1 warning Test UEFI RT service query variable info interface. 1 passed Test UEFI RT service variable interface stress test. 2 passed Test UEFI RT service set variable interface stress t.. 4 passed Test UEFI RT service query variable info interface s.. 1 passed Test UEFI RT service get variable interface, invalid.. 5 passed Test UEFI RT variable services supported status. 1 skipped Test |Pass |Fail |Abort|Warn |Skip |Info | uefirtvariable | 25| | | 1| 1| | Total: | 25| 0| 0| 1| 1| 0| *********************************************************************** Changes from v4->v5: 1. Late mappings allocations are now done through function pointers. 2. EFI run time services are verified using full linux boot and fwts using EDK2. Changes from v3->v4: 1. Used pgd mapping to avoid copying DT to bss. Changes from v2->v3: 1. Fixed few bugs in run time services page table mapping. 2. Dropped patch 1 as it is already taken into efi-tree. 3. Sent few generic mmu fixes as a separate series to ease the merge conflicts. Changes from v1->v2: 1. Removed patch 1 as it is already taken into efi-tree. 2. Fixed compilation issues with patch 9. 3. Moved few function prototype declaration to header file to keep kbuild happy. Changes from previous version: 1. Added full ioremap support. 2. Added efi runtime services support. 3. Fixes mm issues Anup Patel (1): RISC-V: Move DT mapping outof fixmap Atish Patra (8): RISC-V: Add early ioremap support RISC-V: Implement late mapping page table allocation functions include: pe.h: Add RISC-V related PE definition RISC-V: Add PE/COFF header for EFI stub RISC-V: Add EFI stub support. efi: Rename arm-init to efi-init common for all arch RISC-V: Add EFI runtime services RISC-V: Add page table dump support for uefi arch/riscv/Kconfig | 25 +++ arch/riscv/Makefile | 1 + arch/riscv/configs/defconfig | 1 + arch/riscv/include/asm/Kbuild | 1 + arch/riscv/include/asm/efi.h | 56 +++++ arch/riscv/include/asm/fixmap.h | 16 +- arch/riscv/include/asm/io.h | 1 + arch/riscv/include/asm/mmu.h | 2 + arch/riscv/include/asm/pgtable.h | 5 + arch/riscv/include/asm/sections.h | 13 ++ arch/riscv/kernel/Makefile | 5 + arch/riscv/kernel/efi-header.S | 104 ++++++++++ arch/riscv/kernel/efi.c | 105 ++++++++++ arch/riscv/kernel/head.S | 17 +- arch/riscv/kernel/head.h | 2 - arch/riscv/kernel/image-vars.h | 51 +++++ arch/riscv/kernel/setup.c | 17 +- arch/riscv/kernel/vmlinux.lds.S | 22 +- arch/riscv/mm/init.c | 191 +++++++++++++----- arch/riscv/mm/ptdump.c | 48 ++++- drivers/firmware/efi/Kconfig | 3 +- drivers/firmware/efi/Makefile | 4 +- .../firmware/efi/{arm-init.c => efi-init.c} | 0 drivers/firmware/efi/libstub/Makefile | 10 + drivers/firmware/efi/libstub/efi-stub.c | 11 +- drivers/firmware/efi/libstub/riscv-stub.c | 110 ++++++++++ drivers/firmware/efi/riscv-runtime.c | 143 +++++++++++++ include/linux/pe.h | 3 + 28 files changed, 900 insertions(+), 67 deletions(-) create mode 100644 arch/riscv/include/asm/efi.h create mode 100644 arch/riscv/include/asm/sections.h create mode 100644 arch/riscv/kernel/efi-header.S create mode 100644 arch/riscv/kernel/efi.c create mode 100644 arch/riscv/kernel/image-vars.h rename drivers/firmware/efi/{arm-init.c => efi-init.c} (100%) create mode 100644 drivers/firmware/efi/libstub/riscv-stub.c create mode 100644 drivers/firmware/efi/riscv-runtime.c --- 2.24.0