From patchwork Sun Nov 25 23:38:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 151943 Delivered-To: patch@linaro.org Received: by 2002:a2e:299d:0:0:0:0:0 with SMTP id p29-v6csp4943446ljp; Sun, 25 Nov 2018 15:38:43 -0800 (PST) X-Google-Smtp-Source: AFSGD/UKDc8nViJane6GX+ZM4Su4rJcv1F0D7tBOQdeOFhjskvBC4Iprizd7aUkiJwQldBjqdif2 X-Received: by 2002:a81:1a0a:: with SMTP id a10-v6mr3405412ywa.337.1543189123404; Sun, 25 Nov 2018 15:38:43 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1543189123; cv=none; d=google.com; s=arc-20160816; b=ZKgeJ5ZxIG2Mrq5o3oLz+D638w36qKr1yyEIvS0gyWjdw9fbtNnfb2Z25RDe6TUpXD UD3KvzW8tT1Aui+gW1xnNwB6B15pjdOmKQAQg9AFpjFKzHozLiASJDRjvjwB+Q69TgNm hrq9Qxl/htL2DiY+eDafaxWxnszjGDW9s3dfSfVEOwJKw/+S1iyAuwGB7Bgw0rZtsNlN lJTuA1tAOBcfp1zfsUt28LkBGvHZGiSrkSWYdZ2M6jLZ8nUDuD0XiBRQ92d9L6RUezIG 05XXPLaEetLnPTg1W3D+/XQWPUIWknGEhZ+dmU1h+iVaFlFszVsvdW4/ZbrkeZtgiFXI dRkg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version:cc:reply-to :list-subscribe:list-help:list-post:list-archive:list-unsubscribe :list-id:precedence:references:in-reply-to:message-id:date:subject :to:from; bh=fecdNHxd9NEjiUUXP5/fSTj/kKReF9DdpGIzP95nKD4=; b=dMYFhkEo0a6EQcLrR2MyFTRNJpKG3SDNyti04WmdDRDhOrlced+MCAhnIvwSIKRta4 sJkLS2mtAUB+rXIc37QTZCNP9KN0yufTPk7JF2H3etPZV9hmustyKUeaipMQ9pho4nfq l5N+uPLu5+cGz/wbnLloYvxoLTE/D9zscTx57v6eh7RjLmfd6BpF/H+AzoypjfGcoW0U A/8t4nNKiRqzwOedOscSkDwcOX+jqRD5IpaEhatW4OvgvMKBFEwwVm6exGLmXtcI3WyZ osGoBQz5erLmn6hQXWaRXhu2tbVGcoxKwGIAaZNe8MmZpQIy9mMb2ztkEh6vG4DCixaW jqRw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of grub-devel-bounces+patch=linaro.org@gnu.org designates 2001:4830:134:3::11 as permitted sender) smtp.mailfrom="grub-devel-bounces+patch=linaro.org@gnu.org" Return-Path: Received: from lists.gnu.org (lists.gnu.org. [2001:4830:134:3::11]) by mx.google.com with ESMTPS id y15-v6si35569999ybg.194.2018.11.25.15.38.43 for (version=TLS1 cipher=AES128-SHA bits=128/128); Sun, 25 Nov 2018 15:38:43 -0800 (PST) Received-SPF: pass (google.com: domain of grub-devel-bounces+patch=linaro.org@gnu.org designates 2001:4830:134:3::11 as permitted sender) client-ip=2001:4830:134:3::11; Authentication-Results: mx.google.com; spf=pass (google.com: domain of grub-devel-bounces+patch=linaro.org@gnu.org designates 2001:4830:134:3::11 as permitted sender) smtp.mailfrom="grub-devel-bounces+patch=linaro.org@gnu.org" Received: from localhost ([::1]:33462 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gR3z8-0000zb-QG for patch@linaro.org; Sun, 25 Nov 2018 18:38:42 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52671) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gR3yq-0000yT-8y for grub-devel@gnu.org; Sun, 25 Nov 2018 18:38:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gR3yo-0008Uu-7u for grub-devel@gnu.org; Sun, 25 Nov 2018 18:38:24 -0500 Received: from mx2.suse.de ([195.135.220.15]:49610 helo=mx1.suse.de) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gR3yo-0008U5-0U for grub-devel@gnu.org; Sun, 25 Nov 2018 18:38:22 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 7D6FCAECE; Sun, 25 Nov 2018 23:38:18 +0000 (UTC) From: Alexander Graf To: grub-devel@gnu.org Subject: [PATCH v4 05/10] RISC-V: Add early startup code Date: Mon, 26 Nov 2018 00:38:10 +0100 Message-Id: <20181125233815.56392-6-agraf@suse.de> X-Mailer: git-send-email 2.12.3 In-Reply-To: <20181125233815.56392-1-agraf@suse.de> References: <20181125233815.56392-1-agraf@suse.de> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x (no timestamps) [generic] [fuzzy] X-Received-From: 195.135.220.15 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: The development of GNU GRUB Cc: rickchen36@gmail.com, David Abdurachmanov , Andreas Schwab , greentime , leif.lindholm@linaro.org, atish.patra@wdc.com, Michael Chang , Alistair Francis , Lukas Auer , Paul Walmsley , Bin Meng MIME-Version: 1.0 Errors-To: grub-devel-bounces+patch=linaro.org@gnu.org Sender: "Grub-devel" On entry, we need to save the system table pointer as well as our image handle. Add an early startup file that saves them and then brings us into our main function. Signed-off-by: Alexander Graf Reviewed-by: Alistair Francis Reviewed-by: Bin Meng Tested-by: Bin Meng --- v3 -> v4: - Change copyright from 2013 to 2018 --- grub-core/kern/riscv/efi/startup.S | 49 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 grub-core/kern/riscv/efi/startup.S -- 2.12.3 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel Reviewed-by: Daniel Kiper diff --git a/grub-core/kern/riscv/efi/startup.S b/grub-core/kern/riscv/efi/startup.S new file mode 100644 index 000000000..287930f6a --- /dev/null +++ b/grub-core/kern/riscv/efi/startup.S @@ -0,0 +1,49 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2018 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#include + +#if __riscv_xlen == 64 +#define sl sd +#define ll ld +#else +#define sl sw +#define ll lw +#endif + + + .file "startup.S" + .text +FUNCTION(_start) + /* + * EFI_SYSTEM_TABLE and EFI_HANDLE are passed in a1/a0. + */ + + ll a2, efi_image_handle_val + sl a0, 0(a2) + ll a2, efi_system_table_val + sl a1, 0(a2) + ll a2, grub_main_val + jr a2 +grub_main_val: + .quad EXT_C(grub_main) +efi_system_table_val: + .quad EXT_C(grub_efi_system_table) +efi_image_handle_val: + .quad EXT_C(grub_efi_image_handle) +