From patchwork Fri Apr 3 10:03:35 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shannon Zhao X-Patchwork-Id: 46750 Return-Path: X-Original-To: linaro@patches.linaro.org Delivered-To: linaro@patches.linaro.org Received: from mail-lb0-f200.google.com (mail-lb0-f200.google.com [209.85.217.200]) by ip-10-151-82-157.ec2.internal (Postfix) with ESMTPS id 620DD216D1 for ; Fri, 3 Apr 2015 10:11:41 +0000 (UTC) Received: by lbdc10 with SMTP id c10sf22445173lbd.0 for ; Fri, 03 Apr 2015 03:11:40 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:delivered-to:from:to:date:message-id:in-reply-to :references:mime-version:content-type:cc:subject:precedence:list-id :list-unsubscribe:list-archive:list-post:list-help:list-subscribe :errors-to:sender:x-original-sender :x-original-authentication-results:mailing-list; bh=v54UGfyj6MZEIJUybRXpUAn/Pa7IeqiiS/ch2JCjFiE=; b=c0m8BOf/q4sMA7DGT2PlZR6jspdP0m8w7wV5u4oMQpIqtaWgdZbd16ARIhU5g/xQhV 2pGM14g7jfFW9niL7GmE7+hecfT2xTGI+TNjz2i8k9Dm4bpndkcr4nZzEDezwpQAN26r pqjhLK+z2UQcSQiNCnozDzKyIQW8sOoS39uA6fJz87tCR8NsEe3ZLJWBfTk8B1frszZf awH6fH7pIAa6h/wqbnSqb7rJXPkcbSc3P78SjmydxFquHJAflEwm8ZQp+r+CyjBnaokx AsjGLZZOCszc5IMW1fdwlC3YQfMaQ6wKa+q89yWOTIEa9kxEbJn3cI5PJBJ6eyNpsQ3B 86+A== X-Gm-Message-State: ALoCoQl54Bn425vCJgvID7JJwJ+HiMQz6wR8BaWaj0VxwpTq49gesFiLfl0Vf2j2gdedF6oof2gn X-Received: by 10.152.20.41 with SMTP id k9mr433618lae.10.1428055900338; Fri, 03 Apr 2015 03:11:40 -0700 (PDT) X-BeenThere: patchwork-forward@linaro.org Received: by 10.152.28.2 with SMTP id x2ls312006lag.99.gmail; Fri, 03 Apr 2015 03:11:40 -0700 (PDT) X-Received: by 10.112.122.7 with SMTP id lo7mr1579634lbb.7.1428055900185; Fri, 03 Apr 2015 03:11:40 -0700 (PDT) Received: from mail-lb0-f169.google.com (mail-lb0-f169.google.com. [209.85.217.169]) by mx.google.com with ESMTPS id es16si6313830lbc.122.2015.04.03.03.11.40 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 03 Apr 2015 03:11:40 -0700 (PDT) Received-SPF: pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.217.169 as permitted sender) client-ip=209.85.217.169; Received: by lbbug6 with SMTP id ug6so76543021lbb.3 for ; Fri, 03 Apr 2015 03:11:40 -0700 (PDT) X-Received: by 10.112.184.70 with SMTP id es6mr1492541lbc.117.1428055900062; Fri, 03 Apr 2015 03:11:40 -0700 (PDT) X-Forwarded-To: patchwork-forward@linaro.org X-Forwarded-For: patch@linaro.org patchwork-forward@linaro.org Delivered-To: patch@linaro.org Received: by 10.112.57.201 with SMTP id k9csp1860462lbq; Fri, 3 Apr 2015 03:11:39 -0700 (PDT) X-Received: by 10.229.95.74 with SMTP id c10mr1819962qcn.17.1428055898545; Fri, 03 Apr 2015 03:11:38 -0700 (PDT) Received: from lists.gnu.org (lists.gnu.org. [2001:4830:134:3::11]) by mx.google.com with ESMTPS id 8si7705777qhu.45.2015.04.03.03.11.37 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Fri, 03 Apr 2015 03:11:38 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) client-ip=2001:4830:134:3::11; Received: from localhost ([::1]:33317 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YdyZd-0001m1-I5 for patch@linaro.org; Fri, 03 Apr 2015 06:11:37 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38242) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YdyUV-0001i8-DP for qemu-devel@nongnu.org; Fri, 03 Apr 2015 06:06:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YdyUP-00061a-Nq for qemu-devel@nongnu.org; Fri, 03 Apr 2015 06:06:19 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:9546) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YdyUO-0005kC-Rd for qemu-devel@nongnu.org; Fri, 03 Apr 2015 06:06:13 -0400 Received: from 172.24.2.119 (EHLO szxeml425-hub.china.huawei.com) ([172.24.2.119]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id BDZ47783; Fri, 03 Apr 2015 18:05:49 +0800 (CST) Received: from HGHY1Z002260041.china.huawei.com (10.177.16.142) by szxeml425-hub.china.huawei.com (10.82.67.180) with Microsoft SMTP Server id 14.3.158.1; Fri, 3 Apr 2015 18:05:39 +0800 From: Shannon Zhao To: , , , , , , , , , , Date: Fri, 3 Apr 2015 18:03:35 +0800 Message-ID: <1428055432-12120-4-git-send-email-zhaoshenglong@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1428055432-12120-1-git-send-email-zhaoshenglong@huawei.com> References: <1428055432-12120-1-git-send-email-zhaoshenglong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.16.142] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020204.551E65FE.0007, ss=1, re=0.001, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 3de0d47111ca15ed01f66d4a946e34ca X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 119.145.14.66 Cc: hangaohuai@huawei.com, shannon.zhao@linaro.org, peter.huangpeng@huawei.com, zhaoshenglong@huawei.com Subject: [Qemu-devel] [PATCH v4 03/20] hw/arm/virt-acpi-build: Basic framework for building ACPI tables on ARM 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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: patch@linaro.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.217.169 as permitted sender) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 From: Shannon Zhao Introduce a preliminary framework in virt-acpi-build.c with the main ACPI build functions. It exposes the generated ACPI contents to guest over fw_cfg. The required ACPI v5.1 tables for ARM are: - RSDP: Initial table that points to XSDT - RSDT: Points to FADT GTDT MADT tables - FADT: Generic information about the machine - GTDT: Generic timer description table - MADT: Multiple APIC description table - DSDT: Holds all information about system devices/peripherals, pointed by FADT Signed-off-by: Shannon Zhao Signed-off-by: Shannon Zhao --- hw/arm/Makefile.objs | 1 + hw/arm/virt-acpi-build.c | 198 +++++++++++++++++++++++++++++++++++++++ include/hw/arm/virt-acpi-build.h | 65 +++++++++++++ 3 files changed, 264 insertions(+) create mode 100644 hw/arm/virt-acpi-build.c create mode 100644 include/hw/arm/virt-acpi-build.h diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs index 2577f68..a1bfb19 100644 --- a/hw/arm/Makefile.objs +++ b/hw/arm/Makefile.objs @@ -3,6 +3,7 @@ obj-$(CONFIG_DIGIC) += digic_boards.o obj-y += integratorcp.o kzm.o mainstone.o musicpal.o nseries.o obj-y += omap_sx1.o palm.o realview.o spitz.o stellaris.o obj-y += tosa.o versatilepb.o vexpress.o virt.o xilinx_zynq.o z2.o +obj-$(CONFIG_ACPI) += virt-acpi-build.o obj-y += netduino2.o obj-y += armv7m.o exynos4210.o pxa2xx.o pxa2xx_gpio.o pxa2xx_pic.o diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c new file mode 100644 index 0000000..388838a --- /dev/null +++ b/hw/arm/virt-acpi-build.c @@ -0,0 +1,198 @@ +/* Support for generating ACPI tables and passing them to Guests + * + * ARM virt ACPI generation + * + * Copyright (C) 2008-2010 Kevin O'Connor + * Copyright (C) 2006 Fabrice Bellard + * Copyright (C) 2013 Red Hat Inc + * + * Author: Michael S. Tsirkin + * + * Copyright (c) 2015 HUAWEI TECHNOLOGIES CO.,LTD. + * + * Author: Shannon Zhao + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "hw/arm/virt-acpi-build.h" +#include +#include +#include "qemu-common.h" +#include "qemu/bitmap.h" +#include "qemu/osdep.h" +#include "qemu/range.h" +#include "qemu/error-report.h" +#include "qom/cpu.h" +#include "target-arm/cpu.h" +#include "hw/acpi/acpi-defs.h" +#include "hw/acpi/acpi.h" +#include "hw/nvram/fw_cfg.h" +#include "hw/acpi/bios-linker-loader.h" +#include "hw/loader.h" +#include "hw/hw.h" + +#include "hw/acpi/aml-build.h" + +#include "qapi/qmp/qint.h" +#include "qom/qom-qobject.h" +#include "exec/ram_addr.h" + +/* #define DEBUG_ACPI_BUILD */ +#ifdef DEBUG_ACPI_BUILD +#define ACPI_BUILD_DPRINTF(fmt, ...) \ + do {printf("ACPI_BUILD: " fmt, ## __VA_ARGS__); } while (0) +#else +#define ACPI_BUILD_DPRINTF(fmt, ...) +#endif + +typedef +struct AcpiBuildState { + /* Copy of table in RAM (for patching). */ + ram_addr_t table_ram; + ram_addr_t rsdp_ram; + ram_addr_t linker_ram; + /* Is table patched? */ + uint8_t patched; + VirtGuestInfo *guest_info; +} AcpiBuildState; + +static +void virt_acpi_build(VirtGuestInfo *guest_info, AcpiBuildTables *tables) +{ + GArray *table_offsets; + + table_offsets = g_array_new(false, true /* clear */, + sizeof(uint32_t)); + + bios_linker_loader_alloc(tables->linker, ACPI_BUILD_TABLE_FILE, + 64, false /* high memory */); + + /* + * The ACPI v5.1 tables for Hardware-reduced ACPI platform are: + * RSDP + * RSDT + * FADT + * GTDT + * MADT + * DSDT + */ + + /* Cleanup memory that's no longer used. */ + g_array_free(table_offsets, true); +} + +static void acpi_ram_update(ram_addr_t ram, GArray *data) +{ + uint32_t size = acpi_data_len(data); + + /* Make sure RAM size is correct - in case it got changed + * e.g. by migration */ + qemu_ram_resize(ram, size, &error_abort); + + memcpy(qemu_get_ram_ptr(ram), data->data, size); + cpu_physical_memory_set_dirty_range_nocode(ram, size); +} + +static void virt_acpi_build_update(void *build_opaque, uint32_t offset) +{ + AcpiBuildState *build_state = build_opaque; + AcpiBuildTables tables; + + /* No state to update or already patched? Nothing to do. */ + if (!build_state || build_state->patched) { + return; + } + build_state->patched = 1; + + acpi_build_tables_init(&tables); + + virt_acpi_build(build_state->guest_info, &tables); + + acpi_ram_update(build_state->table_ram, tables.table_data); + acpi_ram_update(build_state->rsdp_ram, tables.rsdp); + acpi_ram_update(build_state->linker_ram, tables.linker); + + + acpi_build_tables_cleanup(&tables, true); +} + +static void virt_acpi_build_reset(void *build_opaque) +{ + AcpiBuildState *build_state = build_opaque; + build_state->patched = 0; +} + +static ram_addr_t acpi_add_rom_blob(AcpiBuildState *build_state, GArray *blob, + const char *name, uint64_t max_size) +{ + return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size, -1, + name, virt_acpi_build_update, build_state); +} + +static const VMStateDescription vmstate_virt_acpi_build = { + .name = "virt_acpi_build", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT8(patched, AcpiBuildState), + VMSTATE_END_OF_LIST() + }, +}; + +void virt_acpi_setup(VirtGuestInfo *guest_info) +{ + AcpiBuildTables tables; + AcpiBuildState *build_state; + + if (!guest_info->fw_cfg) { + ACPI_BUILD_DPRINTF("No fw cfg. Bailing out.\n"); + return; + } + + if (!acpi_enabled) { + ACPI_BUILD_DPRINTF("ACPI disabled. Bailing out.\n"); + return; + } + + build_state = g_malloc0(sizeof *build_state); + build_state->guest_info = guest_info; + + acpi_build_tables_init(&tables); + virt_acpi_build(build_state->guest_info, &tables); + + /* Now expose it all to Guest */ + build_state->table_ram = acpi_add_rom_blob(build_state, tables.table_data, + ACPI_BUILD_TABLE_FILE, + ACPI_BUILD_TABLE_MAX_SIZE); + assert(build_state->table_ram != RAM_ADDR_MAX); + + build_state->linker_ram = + acpi_add_rom_blob(build_state, tables.linker, "etc/table-loader", 0); + + fw_cfg_add_file(guest_info->fw_cfg, ACPI_BUILD_TPMLOG_FILE, + tables.tcpalog->data, acpi_data_len(tables.tcpalog)); + + build_state->rsdp_ram = acpi_add_rom_blob(build_state, tables.rsdp, + ACPI_BUILD_RSDP_FILE, 0); + + qemu_register_reset(virt_acpi_build_reset, build_state); + virt_acpi_build_reset(build_state); + vmstate_register(NULL, 0, &vmstate_virt_acpi_build, build_state); + + /* Cleanup tables but don't free the memory: we track it + * in build_state. + */ + acpi_build_tables_cleanup(&tables, false); +} diff --git a/include/hw/arm/virt-acpi-build.h b/include/hw/arm/virt-acpi-build.h new file mode 100644 index 0000000..175eac2 --- /dev/null +++ b/include/hw/arm/virt-acpi-build.h @@ -0,0 +1,65 @@ +/* + * + * Copyright (c) 2015 HUAWEI TECHNOLOGIES CO.,LTD. + * + * Author: Shannon Zhao + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#ifndef QEMU_VIRT_ACPI_BUILD_H +#define QEMU_VIRT_ACPI_BUILD_H + +#include "qemu-common.h" + +typedef struct acpi_gtdt_info { + uint32_t timer_virt; + uint32_t timer_s_el1; + uint32_t timer_ns_el1; + uint32_t timer_ns_el2; +} acpi_gtdt_info; + +typedef struct acpi_madt_info { + const hwaddr *gic_cpu_base_addr; + const hwaddr *gic_dist_base_addr; +} acpi_madt_info; + +typedef struct acpi_dsdt_info { + const hwaddr *uart_addr; + const int *uart_irq; + const hwaddr *virtio_mmio_addr; + const int *virtio_mmio_irq; + int virtio_mmio_num; + const hwaddr *rtc_addr; + const int *rtc_irq; + const hwaddr *flash_addr; +} acpi_dsdt_info; + +typedef struct VirtGuestInfo { + int smp_cpus; + int max_cpus; + FWCfgState *fw_cfg; + acpi_madt_info *madt_info; + acpi_dsdt_info *dsdt_info; + acpi_gtdt_info *gtdt_info; +} VirtGuestInfo; + + +typedef struct VirtGuestInfoState { + VirtGuestInfo info; + Notifier machine_done; +} VirtGuestInfoState; + +void virt_acpi_setup(VirtGuestInfo *guest_info); + +#endif