From nobody Sat Nov 15 22:35:13 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1745982342169765.5795624489315; Tue, 29 Apr 2025 20:05:42 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1u9xkw-0000Ei-Bq; Tue, 29 Apr 2025 23:05:06 -0400 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 1u9xkt-0000EA-Vd for qemu-devel@nongnu.org; Tue, 29 Apr 2025 23:05:04 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1u9xkq-0006s6-Oy for qemu-devel@nongnu.org; Tue, 29 Apr 2025 23:05:03 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8CxaWpUkxFo7LXKAA--.9954S3; Wed, 30 Apr 2025 11:04:52 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMBxn8VTkxFoLWSfAA--.8808S2; Wed, 30 Apr 2025 11:04:51 +0800 (CST) From: Bibo Mao To: Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Song Gao Cc: qemu-devel@nongnu.org Subject: [PATCH v3] hw/loongarch/virt: Get physical entry address with elf file Date: Wed, 30 Apr 2025 11:04:47 +0800 Message-Id: <20250430030447.1404720-1-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMBxn8VTkxFoLWSfAA--.8808S2 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=114.242.206.163; envelope-from=maobibo@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, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1745982345555019100 Content-Type: text/plain; charset="utf-8" With load_elf() api, image load low address and high address is converted to physical address if parameter translate_fn is provided. However executing entry address is still virtual address. Here convert entry address into physical address, since MMU is disabled when system power on, the first PC instruction should be physical address. Signed-off-by: Bibo Mao Reviewed-by: Richard Henderson Tested-by: Song Gao --- v2 ... v3: 1. Modify link script about tcg system test cases, loading address is changed from virtual address 0x9000000000200000 to physical address 0x200000. Otherwise test case memory-with-libmem.so fails to run with check-tcg command. v1 ... v2: 1. Only modify LoongArch specified rather than load_elf() API, since there is be potential influence with other architectures. --- hw/loongarch/boot.c | 1 + tests/tcg/loongarch64/system/kernel.ld | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/loongarch/boot.c b/hw/loongarch/boot.c index 354cf458c8..0324d6adcb 100644 --- a/hw/loongarch/boot.c +++ b/hw/loongarch/boot.c @@ -245,6 +245,7 @@ static int64_t load_kernel_info(struct loongarch_boot_i= nfo *info) &kernel_entry, &kernel_low, &kernel_high, NULL, ELFDATA2LSB, EM_LOONGARCH, 1, 0); + kernel_entry =3D cpu_loongarch_virt_to_phys(NULL, kernel_entry); if (kernel_size < 0) { kernel_size =3D load_loongarch_linux_image(info->kernel_filename, &kernel_entry, &kernel_lo= w, diff --git a/tests/tcg/loongarch64/system/kernel.ld b/tests/tcg/loongarch64= /system/kernel.ld index f1a7c0168c..56d8588f1a 100644 --- a/tests/tcg/loongarch64/system/kernel.ld +++ b/tests/tcg/loongarch64/system/kernel.ld @@ -3,7 +3,7 @@ ENTRY(_start) SECTIONS { /* Linux kernel legacy start address. */ - . =3D 0x9000000000200000; + . =3D 0x200000; _text =3D .; .text : { *(.text) base-commit: 73d29ea2417b58ca55fba1aa468ba38e3607b583 --=20 2.39.3