From patchwork Wed May 4 00:59:06 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Max Filippov X-Patchwork-Id: 93939 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [140.186.70.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 5EB74B6F3A for ; Wed, 4 May 2011 11:02:07 +1000 (EST) Received: from localhost ([::1]:54874 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QHQTc-0006iy-Iw for incoming@patchwork.ozlabs.org; Tue, 03 May 2011 21:02:04 -0400 Received: from eggs.gnu.org ([140.186.70.92]:52955) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QHQRn-0004Dm-Ow for qemu-devel@nongnu.org; Tue, 03 May 2011 21:00:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QHQRm-0000iq-UH for qemu-devel@nongnu.org; Tue, 03 May 2011 21:00:11 -0400 Received: from mail-ew0-f45.google.com ([209.85.215.45]:56465) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QHQRm-0000ZL-M5 for qemu-devel@nongnu.org; Tue, 03 May 2011 21:00:10 -0400 Received: by mail-ew0-f45.google.com with SMTP id 24so221435ewy.4 for ; Tue, 03 May 2011 18:00:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references; bh=KyDAWL/4RKqiOYnudO19oiSXPXlV+4XVHHNF0aIP3/o=; b=YLwz6Jd/B7waSZjUO2AUJiEa6qvC7ixRv4SNEmI6kQoIPmY2Zt2JoX7WXzDw6QtZWa GFnCjcmX4iMsMax/PAldJuiKrKdUOV93zgR10Z6DjGLBtVvK1wbJYZ/7OPxFwyLeOrlG uihaQACF98jQ/rq652G0pyiM1+y1eRJwyAqaQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=W9tqLN3IR0XDJF6jOWERQ4xNwWQQoV0Y/ZF1ACV7LyRI68XwZnqoFHZQ8dRv6GyAqk PZQ3HeMG6C7GeROzsAtc2iQPY3Y17ukEzSXuVZZGN5ffcAT7Ygn35uRA4B520IDTf2JW rxgrI0DswYrF2/tem1Y8FxK7x7tU/L60lAkVA= Received: by 10.14.49.66 with SMTP id w42mr246965eeb.17.1304470810222; Tue, 03 May 2011 18:00:10 -0700 (PDT) Received: from octofox.metropolis ([188.134.19.124]) by mx.google.com with ESMTPS id g1sm441148een.10.2011.05.03.18.00.08 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 03 May 2011 18:00:09 -0700 (PDT) Received: by octofox.metropolis (sSMTP sendmail emulation); Wed, 4 May 2011 05:00:07 +0400 From: Max Filippov To: qemu-devel@nongnu.org Date: Wed, 4 May 2011 04:59:06 +0400 Message-Id: <1304470768-16924-6-git-send-email-jcmvbkbc@gmail.com> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: <1304470768-16924-1-git-send-email-jcmvbkbc@gmail.com> References: <1304470768-16924-1-git-send-email-jcmvbkbc@gmail.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 209.85.215.45 Cc: Max Filippov Subject: [Qemu-devel] [RFC 06/28] target-xtensa: add sample board X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sample board and sample CPU core are used for debug and may be used for development of custom SoC emulators. This board has two fixed size memory regions for DTCM and ITCM and variable length SRAM region. Signed-off-by: Max Filippov --- Makefile.target | 1 + hw/xtensa_sample.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 69 insertions(+), 0 deletions(-) create mode 100644 hw/xtensa_sample.c diff --git a/Makefile.target b/Makefile.target index 7e7afd2..8d6d081 100644 --- a/Makefile.target +++ b/Makefile.target @@ -367,6 +367,7 @@ obj-s390x-y = s390-virtio-bus.o s390-virtio.o obj-alpha-y = alpha_palcode.o obj-xtensa-y += xtensa_pic.o +obj-xtensa-y += xtensa_sample.o main.o: QEMU_CFLAGS+=$(GPROF_CFLAGS) diff --git a/hw/xtensa_sample.c b/hw/xtensa_sample.c new file mode 100644 index 0000000..8103675 --- /dev/null +++ b/hw/xtensa_sample.c @@ -0,0 +1,68 @@ +#include "sysemu.h" +#include "boards.h" +#include "loader.h" +#include "elf.h" + +static void xtensa_init(ram_addr_t ram_size, + const char *boot_device, + const char *kernel_filename, const char *kernel_cmdline, + const char *initrd_filename, const char *cpu_model) +{ + CPUState *env = NULL; + ram_addr_t ram_offset; + int n; + + for (n = 0; n < smp_cpus; n++) { + env = cpu_init(cpu_model); + if (!env) { + fprintf(stderr, "Unable to find CPU definition\n"); + exit(1); + } + } + + ram_offset = qemu_ram_alloc(NULL, "xtensa.dram", 0x10000); + cpu_register_physical_memory(0x5ffd0000, 0x10000, ram_offset); + + ram_offset = qemu_ram_alloc(NULL, "xtensa.iram", 0x20000); + cpu_register_physical_memory(0x5ffe0000, 0x20000, ram_offset); + + ram_offset = qemu_ram_alloc(NULL, "xtensa.sram", ram_size); + cpu_register_physical_memory(0x60000000, ram_size, ram_offset); + + if (kernel_filename) { + uint64_t elf_entry; + uint64_t elf_lowaddr; + + int success = load_elf(kernel_filename, NULL, NULL, &elf_entry, + &elf_lowaddr, NULL, 0, ELF_MACHINE, 0); + if (success > 0) { + env->pc = elf_entry; + } + } +} + +static void xtensa_sample_init(ram_addr_t ram_size, + const char *boot_device, + const char *kernel_filename, const char *kernel_cmdline, + const char *initrd_filename, const char *cpu_model) +{ + if (!cpu_model) { + cpu_model = "sample-xtensa-core"; + } + xtensa_init(ram_size, boot_device, kernel_filename, kernel_cmdline, + initrd_filename, cpu_model); +} + +static QEMUMachine xtensa_sample_machine = { + .name = "sample-xtensa-machine", + .desc = "Sample Xtensa machine (sample Xtensa core)", + .init = xtensa_sample_init, + .max_cpus = 4, +}; + +static void xtensa_sample_machine_init(void) +{ + qemu_register_machine(&xtensa_sample_machine); +} + +machine_init(xtensa_sample_machine_init);