From nobody Wed Nov 5 08:20:06 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1533222174792265.7344957773795; Thu, 2 Aug 2018 08:02:54 -0700 (PDT) Received: from localhost ([::1]:46133 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1flF7t-0006AT-Lf for importer@patchew.org; Thu, 02 Aug 2018 11:02:53 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33743) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1flElA-0001or-0D for qemu-devel@nongnu.org; Thu, 02 Aug 2018 10:39:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1flEl6-0002m0-Sk for qemu-devel@nongnu.org; Thu, 02 Aug 2018 10:39:24 -0400 Received: from mx2.rt-rk.com ([89.216.37.149]:46030 helo=mail.rt-rk.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1flEl6-0002kq-K6 for qemu-devel@nongnu.org; Thu, 02 Aug 2018 10:39:20 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id 48D721A2005; Thu, 2 Aug 2018 16:39:19 +0200 (CEST) Received: from smarkovic.domain.local (smarkovic.domain.local [10.10.14.46]) by mail.rt-rk.com (Postfix) with ESMTPSA id 298CA1A118F; Thu, 2 Aug 2018 16:39:19 +0200 (CEST) X-Virus-Scanned: amavisd-new at rt-rk.com From: Stefan Markovic To: qemu-devel@nongnu.org Date: Thu, 2 Aug 2018 16:16:44 +0200 Message-Id: <1533219424-7627-58-git-send-email-stefan.markovic@rt-rk.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1533219424-7627-1-git-send-email-stefan.markovic@rt-rk.com> References: <1533219424-7627-1-git-send-email-stefan.markovic@rt-rk.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 89.216.37.149 Subject: [Qemu-devel] [PATCH v6 57/77] mips_malta: Fix semihosting argument passing for nanoMIPS bare metal X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pburton@wavecomp.com, smarkovic@wavecomp.com, riku.voipio@iki.fi, richard.henderson@linaro.org, laurent@vivier.eu, arikalo@wavecomp.com, philippe.mathieu.daude@gmail.com, amarkovic@wavecomp.com, pjovanovic@wavecomp.com, aurelien@aurel32.net Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Stefan Markovic Signed-off-by: Yongbok Kim Signed-off-by: Aleksandar Markovic Signed-off-by: Stefan Markovic --- hw/mips/mips_malta.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c index d1a7c1f..8bb1686 100644 --- a/hw/mips/mips_malta.c +++ b/hw/mips/mips_malta.c @@ -643,7 +643,12 @@ static void write_bootloader_nanomips(uint8_t *base, i= nt64_t run_addr, stw_p(p++, 0x8000); stw_p(p++, 0xc000); /* nop */ =20 /* to_here: */ - stw_p(p++, 0x0080); stw_p(p++, 0x0002); /* li a0,2 */ + if (semihosting_get_argc()) { + /* Preserve a0 content as arguments have been passed */ + stw_p(p++, 0x8000); stw_p(p++, 0xc000); /* nop */ + } else { + stw_p(p++, 0x0080); stw_p(p++, 0x0002); /* li a0,2 */ + } stw_p(p++, 0xe3a0 | NM_HI1(ENVP_ADDR - 64)); stw_p(p++, NM_HI2(ENVP_ADDR - 64)); /* lui sp,%hi(ENVP_ADDR - 64) */ --=20 1.9.1