From patchwork Wed Dec 27 08:08:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: gaosong X-Patchwork-Id: 13505202 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C71B0C46CD4 for ; Wed, 27 Dec 2023 08:23:36 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rIPAX-0006L6-St; Wed, 27 Dec 2023 03:21:38 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rIPAU-0006KL-1Z for qemu-devel@nongnu.org; Wed, 27 Dec 2023 03:21:34 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rIPAR-0002JW-4Z for qemu-devel@nongnu.org; Wed, 27 Dec 2023 03:21:33 -0500 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8DxVPB93otlPfcEAA--.23722S3; Wed, 27 Dec 2023 16:21:17 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Bxib153otly4QMAA--.16227S6; Wed, 27 Dec 2023 16:21:16 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, peter.maydell@linaro.org, philmd@linaro.org, maobibo@loongson.cn Subject: [PATCH v3 04/17] hw/loongarch: Add init_cmdline Date: Wed, 27 Dec 2023 16:08:08 +0800 Message-Id: <20231227080821.3216113-5-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20231227080821.3216113-1-gaosong@loongson.cn> References: <20231227080821.3216113-1-gaosong@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Bxib153otly4QMAA--.16227S6 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add init_cmline and set boot_info->a0, a1 Signed-off-by: Song Gao --- hw/loongarch/boot.c | 20 ++++++++++++++++++++ target/loongarch/cpu.h | 2 ++ 2 files changed, 22 insertions(+) diff --git a/hw/loongarch/boot.c b/hw/loongarch/boot.c index faff880153..27eae6f0cb 100644 --- a/hw/loongarch/boot.c +++ b/hw/loongarch/boot.c @@ -13,6 +13,7 @@ #include "elf.h" #include "qemu/error-report.h" #include "sysemu/reset.h" +#include static unsigned int slave_boot_code[] = { /* Configure reset ebase. */ @@ -62,6 +63,16 @@ static unsigned int slave_boot_code[] = { 0x4c000020, /* jirl $r0,$r1,0 */ }; +static void init_cmdline(struct loongarch_boot_info *info, void *p, void *start) +{ + hwaddr cmdline_addr = (hwaddr)p - (hwaddr)start; + + info->a0 = 1; + info->a1 = cmdline_addr; + + memcpy(p, info->kernel_cmdline, COMMAND_LINE_SIZE); +} + static uint64_t cpu_loongarch_virt_to_phys(void *opaque, uint64_t addr) { return addr & MAKE_64BIT_MASK(0, TARGET_PHYS_ADDR_SPACE_BITS); @@ -121,6 +132,10 @@ static void reset_load_elf(void *opaque) cpu_reset(CPU(cpu)); if (env->load_elf) { + if (cpu == LOONGARCH_CPU(first_cpu)) { + env->gpr[4] = env->boot_info->a0; + env->gpr[5] = env->boot_info->a1; + } cpu_set_pc(CPU(cpu), env->elf_address); } } @@ -160,8 +175,13 @@ static void loongarch_firmware_boot(LoongArchMachineState *lams, static void init_boot_rom(struct loongarch_boot_info *info, void *p) { + void *start = p; + memcpy(p, &slave_boot_code, sizeof(slave_boot_code)); p += sizeof(slave_boot_code); + + init_cmdline(info, p, start); + p += COMMAND_LINE_SIZE; } static void loongarch_direct_kernel_boot(struct loongarch_boot_info *info) diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index 00d1fba597..c7c695138e 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -362,6 +362,8 @@ typedef struct CPUArchState { uint64_t elf_address; /* Store ipistate to access from this struct */ DeviceState *ipistate; + + struct loongarch_boot_info *boot_info; #endif } CPULoongArchState;