From patchwork Tue Jul 21 06:15:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Pavel Dovgalyuk X-Patchwork-Id: 11675033 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8E6A9138A for ; Tue, 21 Jul 2020 06:16:01 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 6FD39206E9 for ; Tue, 21 Jul 2020 06:16:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6FD39206E9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=ispras.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:60402 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jxlZI-00089e-Mp for patchwork-qemu-devel@patchwork.kernel.org; Tue, 21 Jul 2020 02:16:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47384) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jxlYT-0006rH-OK for qemu-devel@nongnu.org; Tue, 21 Jul 2020 02:15:09 -0400 Received: from mail.ispras.ru ([83.149.199.84]:53676) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jxlYR-0001dy-WC for qemu-devel@nongnu.org; Tue, 21 Jul 2020 02:15:09 -0400 Received: from [127.0.1.1] (unknown [62.118.151.149]) by mail.ispras.ru (Postfix) with ESMTPSA id 0023F40A92BA; Tue, 21 Jul 2020 06:15:05 +0000 (UTC) Subject: [PATCH v2 1/2] hw/mips: remove exit(1) in case of missing ROM From: Pavel Dovgalyuk To: qemu-devel@nongnu.org Date: Tue, 21 Jul 2020 09:15:05 +0300 Message-ID: <159531210571.24117.231100997794891819.stgit@pasha-ThinkPad-X280> In-Reply-To: <159531210010.24117.10018704762356020189.stgit@pasha-ThinkPad-X280> References: <159531210010.24117.10018704762356020189.stgit@pasha-ThinkPad-X280> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Received-SPF: pass client-ip=83.149.199.84; envelope-from=pavel.dovgalyuk@ispras.ru; helo=mail.ispras.ru X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/21 02:15:01 X-ACL-Warn: Detected OS = Linux 3.11 and newer 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 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, pavel.dovgalyuk@ispras.ru, f4bug@amsat.org, aleksandar.qemu.devel@gmail.com, antonynpavlov@gmail.com, chenhc@lemote.com, aurelien@aurel32.net Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" This patch updates MIPS-based machines to allow starting them without ROM. In this case CPU starts to execute instructions from the empty memory, but QEMU allows introspecting the machine configuration. Signed-off-by: Pavel Dovgalyuk Reviewed-by: Philippe Mathieu-Daudé --- hw/mips/fuloong2e.c | 8 +++----- hw/mips/jazz.c | 8 +++----- hw/mips/malta.c | 11 ++++------- hw/mips/mipssim.c | 10 +++------- 4 files changed, 13 insertions(+), 24 deletions(-) diff --git a/hw/mips/fuloong2e.c b/hw/mips/fuloong2e.c index 8ca31e5162..3e8a073922 100644 --- a/hw/mips/fuloong2e.c +++ b/hw/mips/fuloong2e.c @@ -336,10 +336,8 @@ static void mips_fuloong2e_init(MachineState *machine) kernel_entry = load_kernel(env); write_bootloader(env, memory_region_get_ram_ptr(bios), kernel_entry); } else { - if (bios_name == NULL) { - bios_name = FULOONG_BIOSNAME; - } - filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, + bios_name ?: FULOONG_BIOSNAME); if (filename) { bios_size = load_image_targphys(filename, 0x1fc00000LL, BIOS_SIZE); @@ -349,7 +347,7 @@ static void mips_fuloong2e_init(MachineState *machine) } if ((bios_size < 0 || bios_size > BIOS_SIZE) && - !kernel_filename && !qtest_enabled()) { + bios_name && !qtest_enabled()) { error_report("Could not load MIPS bios '%s'", bios_name); exit(1); } diff --git a/hw/mips/jazz.c b/hw/mips/jazz.c index 82a6e3220e..b6dee3eb1f 100644 --- a/hw/mips/jazz.c +++ b/hw/mips/jazz.c @@ -205,10 +205,7 @@ static void mips_jazz_init(MachineState *machine, memory_region_add_subregion(address_space, 0xfff00000LL, bios2); /* load the BIOS image. */ - if (bios_name == NULL) { - bios_name = BIOS_FILENAME; - } - filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name ?: BIOS_FILENAME); if (filename) { bios_size = load_image_targphys(filename, 0xfff00000LL, MAGNUM_BIOS_SIZE); @@ -216,7 +213,8 @@ static void mips_jazz_init(MachineState *machine, } else { bios_size = -1; } - if ((bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) && !qtest_enabled()) { + if ((bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) + && bios_name && !qtest_enabled()) { error_report("Could not load MIPS bios '%s'", bios_name); exit(1); } diff --git a/hw/mips/malta.c b/hw/mips/malta.c index a59e20c81c..838de0f905 100644 --- a/hw/mips/malta.c +++ b/hw/mips/malta.c @@ -1334,10 +1334,8 @@ void mips_malta_init(MachineState *machine) /* Load firmware from flash. */ if (!dinfo) { /* Load a BIOS image. */ - if (bios_name == NULL) { - bios_name = BIOS_FILENAME; - } - filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, + bios_name ?: BIOS_FILENAME); if (filename) { bios_size = load_image_targphys(filename, FLASH_ADDRESS, BIOS_SIZE); @@ -1346,9 +1344,8 @@ void mips_malta_init(MachineState *machine) bios_size = -1; } if ((bios_size < 0 || bios_size > BIOS_SIZE) && - !kernel_filename && !qtest_enabled()) { - error_report("Could not load MIPS bios '%s', and no " - "-kernel argument was specified", bios_name); + bios_name && !qtest_enabled()) { + error_report("Could not load MIPS bios '%s'", bios_name); exit(1); } } diff --git a/hw/mips/mipssim.c b/hw/mips/mipssim.c index 1b3b762203..f259e7041e 100644 --- a/hw/mips/mipssim.c +++ b/hw/mips/mipssim.c @@ -173,10 +173,7 @@ mips_mipssim_init(MachineState *machine) /* Map the BIOS / boot exception handler. */ memory_region_add_subregion(address_space_mem, 0x1fc00000LL, bios); /* Load a BIOS / boot exception handler image. */ - if (bios_name == NULL) { - bios_name = BIOS_FILENAME; - } - filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name ?: BIOS_FILENAME); if (filename) { bios_size = load_image_targphys(filename, 0x1fc00000LL, BIOS_SIZE); g_free(filename); @@ -184,10 +181,9 @@ mips_mipssim_init(MachineState *machine) bios_size = -1; } if ((bios_size < 0 || bios_size > BIOS_SIZE) && - !kernel_filename && !qtest_enabled()) { + bios_name && !qtest_enabled()) { /* Bail out if we have neither a kernel image nor boot vector code. */ - error_report("Could not load MIPS bios '%s', and no " - "-kernel argument was specified", bios_name); + error_report("Could not load MIPS bios '%s'", bios_name); exit(1); } else { /* We have a boot vector start address. */