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[2001:4830:134:3::11]) by mx.google.com with ESMTPS id e5si1446774qkh.30.2015.05.07.02.35.30 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 07 May 2015 02:35:31 -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]:49674 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YqIDK-0003cI-E8 for patch@linaro.org; Thu, 07 May 2015 05:35:30 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56601) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YqI9p-0006uK-Va for qemu-devel@nongnu.org; Thu, 07 May 2015 05:31:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YqI9n-0001l2-4N for qemu-devel@nongnu.org; Thu, 07 May 2015 05:31:53 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:52383) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YqI9k-0001fr-Tc for qemu-devel@nongnu.org; Thu, 07 May 2015 05:31:51 -0400 Received: from 172.24.2.119 (EHLO szxeml426-hub.china.huawei.com) ([172.24.2.119]) by szxrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CKZ44925; Thu, 07 May 2015 17:31:28 +0800 (CST) Received: from HGHY1Z002260041.china.huawei.com (10.177.16.142) by szxeml426-hub.china.huawei.com (10.82.67.181) with Microsoft SMTP Server id 14.3.158.1; Thu, 7 May 2015 17:31:19 +0800 From: Shannon Zhao To: , , , , , , , , , , Date: Thu, 7 May 2015 17:29:05 +0800 Message-ID: <1430990964-10528-4-git-send-email-zhaoshenglong@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1430990964-10528-1-git-send-email-zhaoshenglong@huawei.com> References: <1430990964-10528-1-git-send-email-zhaoshenglong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.16.142] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 119.145.14.65 Cc: hangaohuai@huawei.com, zhaoshenglong@huawei.com, peter.huangpeng@huawei.com, shannon.zhao@linaro.org Subject: [Qemu-devel] [PATCH v6 03/22] 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 209.85.217.180 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 Reviewed-by: Alex Bennée --- hw/arm/Makefile.objs | 1 + hw/arm/virt-acpi-build.c | 184 +++++++++++++++++++++++++++++++++++++++ include/hw/arm/virt-acpi-build.h | 70 +++++++++++++++ qemu-options.hx | 2 +- trace-events | 3 + 5 files changed, 259 insertions(+), 1 deletion(-) 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..960206d --- /dev/null +++ b/hw/arm/virt-acpi-build.c @@ -0,0 +1,184 @@ +/* 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 "trace.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" + +typedef +struct AcpiBuildState { + /* Copy of table in RAM (for patching). */ + MemoryRegion *table_mr; + MemoryRegion *rsdp_mr; + MemoryRegion *linker_mr; + /* 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(MemoryRegion *mr, GArray *data) +{ + uint32_t size = acpi_data_len(data); + + /* Make sure RAM size is correct - in case it got changed + * e.g. by migration */ + memory_region_ram_resize(mr, size, &error_abort); + + memcpy(memory_region_get_ram_ptr(mr), data->data, size); + memory_region_set_dirty(mr, 0, 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_mr, tables.table_data); + acpi_ram_update(build_state->rsdp_mr, tables.rsdp); + acpi_ram_update(build_state->linker_mr, 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 MemoryRegion *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) { + trace_virt_acpi_setup(); + return; + } + + if (!acpi_enabled) { + trace_virt_acpi_setup(); + 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_mr = acpi_add_rom_blob(build_state, tables.table_data, + ACPI_BUILD_TABLE_FILE, + ACPI_BUILD_TABLE_MAX_SIZE); + assert(build_state->table_mr != NULL); + + build_state->linker_mr = + 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_mr = 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..ece67a2 --- /dev/null +++ b/include/hw/arm/virt-acpi-build.h @@ -0,0 +1,70 @@ +/* + * + * 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 MemMap { + hwaddr addr; + hwaddr size; +} MemMap; + +typedef struct AcpiGtdtInfo { + uint32_t timer_virt; + uint32_t timer_s_el1; + uint32_t timer_ns_el1; + uint32_t timer_ns_el2; +} AcpiGtdtInfo; + +typedef struct AcpiMadtInfo { + const MemMap *gic_cpu_memmap; + const MemMap *gic_dist_memmap; +} AcpiMadtInfo; + +typedef struct AcpiDsdtInfo { + const MemMap *uart_memmap; + const int *uart_irq; + const MemMap *virtio_mmio_memmap; + const int *virtio_mmio_irq; + int virtio_mmio_num; + const MemMap *rtc_memmap; + const int *rtc_irq; + const MemMap *flash_memmap; +} AcpiDsdtInfo; + +typedef struct VirtGuestInfo { + int smp_cpus; + int max_cpus; + FWCfgState *fw_cfg; + AcpiMadtInfo *madt_info; + AcpiDsdtInfo *dsdt_info; + AcpiGtdtInfo *gtdt_info; +} VirtGuestInfo; + + +typedef struct VirtGuestInfoState { + VirtGuestInfo info; + Notifier machine_done; +} VirtGuestInfoState; + +void virt_acpi_setup(VirtGuestInfo *guest_info); + +#endif diff --git a/qemu-options.hx b/qemu-options.hx index ec356f6..030c14f 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -1352,7 +1352,7 @@ be needed to boot from old floppy disks. ETEXI DEF("no-acpi", 0, QEMU_OPTION_no_acpi, - "-no-acpi disable ACPI\n", QEMU_ARCH_I386) + "-no-acpi disable ACPI\n", QEMU_ARCH_I386 | QEMU_ARCH_ARM) STEXI @item -no-acpi @findex -no-acpi diff --git a/trace-events b/trace-events index 30eba92..0c7d2ff 100644 --- a/trace-events +++ b/trace-events @@ -1590,3 +1590,6 @@ i8257_unregistered_dma(int nchan, int dma_pos, int dma_len) "unregistered DMA ch cpu_set_state(int cpu_index, uint8_t state) "setting cpu %d state to %" PRIu8 cpu_halt(int cpu_index) "halting cpu %d" cpu_unhalt(int cpu_index) "unhalting cpu %d" + +# hw/arm/virt-acpi-build.c +virt_acpi_setup(void) "No fw cfg or ACPI disabled. Bailing out."