From patchwork Tue Jan 12 14:30:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxim Uvarov X-Patchwork-Id: 12013659 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 460BFC433E0 for ; Tue, 12 Jan 2021 14:38:10 +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 D525F20771 for ; Tue, 12 Jan 2021 14:38:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D525F20771 Authentication-Results: mail.kernel.org; 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Tue, 12 Jan 2021 06:31:03 -0800 (PST) Received: from localhost.localdomain ([2.92.195.184]) by smtp.gmail.com with ESMTPSA id c24sm365499ljn.116.2021.01.12.06.31.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 06:31:02 -0800 (PST) From: Maxim Uvarov To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCHv4 1/2] hw: gpio: implement gpio-pwr driver for qemu reset/poweroff Date: Tue, 12 Jan 2021 17:30:57 +0300 Message-Id: <20210112143058.12159-2-maxim.uvarov@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210112143058.12159-1-maxim.uvarov@linaro.org> References: <20210112143058.12159-1-maxim.uvarov@linaro.org> Received-SPF: pass client-ip=2a00:1450:4864:20::22a; envelope-from=maxim.uvarov@linaro.org; helo=mail-lj1-x22a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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, Maxim Uvarov , f4bug@amsat.org, Jose.Marinho@arm.com, tf-a@lists.trustedfirmware.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Implement gpio-pwr driver to allow reboot and poweroff machine. This is simple driver with just 2 gpios lines. Current use case is to reboot and poweroff virt machine in secure mode. Secure pl066 gpio chip is needed for that. Signed-off-by: Maxim Uvarov Reviewed-by: Hao Wu --- hw/gpio/Kconfig | 3 ++ hw/gpio/gpio_pwr.c | 70 +++++++++++++++++++++++++++++++++++++++++++++ hw/gpio/meson.build | 1 + 3 files changed, 74 insertions(+) create mode 100644 hw/gpio/gpio_pwr.c diff --git a/hw/gpio/Kconfig b/hw/gpio/Kconfig index b6fdaa2586..f0e7405f6e 100644 --- a/hw/gpio/Kconfig +++ b/hw/gpio/Kconfig @@ -8,5 +8,8 @@ config PL061 config GPIO_KEY bool +config GPIO_PWR + bool + config SIFIVE_GPIO bool diff --git a/hw/gpio/gpio_pwr.c b/hw/gpio/gpio_pwr.c new file mode 100644 index 0000000000..8ed8d5d24f --- /dev/null +++ b/hw/gpio/gpio_pwr.c @@ -0,0 +1,70 @@ +/* + * GPIO qemu power controller + * + * Copyright (c) 2020 Linaro Limited + * + * Author: Maxim Uvarov + * + * Virtual gpio driver which can be used on top of pl061 + * to reboot and shutdown qemu virtual machine. One of use + * case is gpio driver for secure world application (ARM + * Trusted Firmware.). + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +/* + * QEMU interface: + * two named input GPIO lines: + * 'reset' : when asserted, trigger system reset + * 'shutdown' : when asserted, trigger system shutdown + */ + +#include "qemu/osdep.h" +#include "hw/sysbus.h" +#include "sysemu/runstate.h" + +#define TYPE_GPIOPWR "gpio-pwr" +OBJECT_DECLARE_SIMPLE_TYPE(GPIO_PWR_State, GPIOPWR) + +struct GPIO_PWR_State { + SysBusDevice parent_obj; +}; + +static void gpio_pwr_reset(void *opaque, int n, int level) +{ + if (!level) { + qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); + } +} + +static void gpio_pwr_shutdown(void *opaque, int n, int level) +{ + if (!level) { + qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); + } +} + +static void gpio_pwr_init(Object *obj) +{ + DeviceState *dev = DEVICE(obj); + + qdev_init_gpio_in_named(dev, gpio_pwr_reset, "reset", 1); + qdev_init_gpio_in_named(dev, gpio_pwr_shutdown, "shutdown", 1); +} + +static const TypeInfo gpio_pwr_info = { + .name = TYPE_GPIOPWR, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(GPIO_PWR_State), + .instance_init = gpio_pwr_init, +}; + +static void gpio_pwr_register_types(void) +{ + type_register_static(&gpio_pwr_info); +} + +type_init(gpio_pwr_register_types) diff --git a/hw/gpio/meson.build b/hw/gpio/meson.build index 5c0a7d7b95..79568f00ce 100644 --- a/hw/gpio/meson.build +++ b/hw/gpio/meson.build @@ -1,5 +1,6 @@ softmmu_ss.add(when: 'CONFIG_E500', if_true: files('mpc8xxx.c')) softmmu_ss.add(when: 'CONFIG_GPIO_KEY', if_true: files('gpio_key.c')) +softmmu_ss.add(when: 'CONFIG_GPIO_PWR', if_true: files('gpio_pwr.c')) softmmu_ss.add(when: 'CONFIG_MAX7310', if_true: files('max7310.c')) softmmu_ss.add(when: 'CONFIG_PL061', if_true: files('pl061.c')) softmmu_ss.add(when: 'CONFIG_PUV3', if_true: files('puv3_gpio.c')) From patchwork Tue Jan 12 14:30:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxim Uvarov X-Patchwork-Id: 12013661 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC9FBC433DB for ; Tue, 12 Jan 2021 14:40:44 +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 55CE422EBE for ; Tue, 12 Jan 2021 14:40:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 55CE422EBE Authentication-Results: mail.kernel.org; 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Tue, 12 Jan 2021 06:31:04 -0800 (PST) Received: from localhost.localdomain ([2.92.195.184]) by smtp.gmail.com with ESMTPSA id c24sm365499ljn.116.2021.01.12.06.31.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 06:31:03 -0800 (PST) From: Maxim Uvarov To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCHv4 2/2] arm-virt: add secure pl061 for reset/power down Date: Tue, 12 Jan 2021 17:30:58 +0300 Message-Id: <20210112143058.12159-3-maxim.uvarov@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210112143058.12159-1-maxim.uvarov@linaro.org> References: <20210112143058.12159-1-maxim.uvarov@linaro.org> Received-SPF: pass client-ip=2a00:1450:4864:20::22f; envelope-from=maxim.uvarov@linaro.org; helo=mail-lj1-x22f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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, Maxim Uvarov , f4bug@amsat.org, Jose.Marinho@arm.com, tf-a@lists.trustedfirmware.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add secure pl061 for reset/power down machine from the secure world (Arm Trusted Firmware). Connect it with gpio-pwr driver. Signed-off-by: Maxim Uvarov --- hw/arm/Kconfig | 1 + hw/arm/virt.c | 40 ++++++++++++++++++++++++++++++++++++++++ include/hw/arm/virt.h | 3 +++ 3 files changed, 44 insertions(+) diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index 0a242e4c5d..13cc42dcc8 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -17,6 +17,7 @@ config ARM_VIRT select PL011 # UART select PL031 # RTC select PL061 # GPIO + select GPIO_PWR select PLATFORM_BUS select SMBIOS select VIRTIO_MMIO diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 96985917d3..19605390c2 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -147,6 +147,7 @@ static const MemMapEntry base_memmap[] = { [VIRT_RTC] = { 0x09010000, 0x00001000 }, [VIRT_FW_CFG] = { 0x09020000, 0x00000018 }, [VIRT_GPIO] = { 0x09030000, 0x00001000 }, + [VIRT_SECURE_GPIO] = { 0x09031000, 0x00001000 }, [VIRT_SECURE_UART] = { 0x09040000, 0x00001000 }, [VIRT_SMMU] = { 0x09050000, 0x00020000 }, [VIRT_PCDIMM_ACPI] = { 0x09070000, MEMORY_HOTPLUG_IO_LEN }, @@ -864,6 +865,32 @@ static void create_gpio(const VirtMachineState *vms) g_free(nodename); } +#define ATF_GPIO_POWEROFF 3 +#define ATF_GPIO_REBOOT 4 + +static void create_gpio_secure(const VirtMachineState *vms, MemoryRegion *mem) +{ + DeviceState *gpio_pwr_dev; + SysBusDevice *s; + hwaddr base = vms->memmap[VIRT_SECURE_GPIO].base; + DeviceState *pl061_dev; + + /* Secure pl061 */ + pl061_dev = qdev_new("pl061"); + s = SYS_BUS_DEVICE(pl061_dev); + sysbus_realize_and_unref(s, &error_fatal); + memory_region_add_subregion(mem, base, sysbus_mmio_get_region(s, 0)); + + /* gpio-pwr */ + gpio_pwr_dev = sysbus_create_simple("gpio-pwr", -1, NULL); + + /* connect secure pl061 to gpio-pwr */ + qdev_connect_gpio_out(pl061_dev, ATF_GPIO_POWEROFF, + qdev_get_gpio_in_named(gpio_pwr_dev, "reset", 0)); + qdev_connect_gpio_out(pl061_dev, ATF_GPIO_REBOOT, + qdev_get_gpio_in_named(gpio_pwr_dev, "shutdown", 0)); +} + static void create_virtio_devices(const VirtMachineState *vms) { int i; @@ -1993,6 +2020,10 @@ static void machvirt_init(MachineState *machine) create_gpio(vms); } + if (vms->secure && vms->secure_gpio) { + create_gpio_secure(vms, secure_sysmem); + } + /* connect powerdown request */ vms->powerdown_notifier.notify = virt_powerdown_req; qemu_register_powerdown_notifier(&vms->powerdown_notifier); @@ -2567,6 +2598,12 @@ static void virt_instance_init(Object *obj) vms->its = true; } + if (vmc->no_secure_gpio) { + vms->secure_gpio = false; + } else { + vms->secure_gpio = true; + } + /* Default disallows iommu instantiation */ vms->iommu = VIRT_IOMMU_NONE; @@ -2608,8 +2645,11 @@ DEFINE_VIRT_MACHINE_AS_LATEST(6, 0) static void virt_machine_5_2_options(MachineClass *mc) { + VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); + virt_machine_6_0_options(mc); compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); + vmc->no_secure_gpio = true; } DEFINE_VIRT_MACHINE(5, 2) diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index abf54fab49..a140e75444 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -81,6 +81,7 @@ enum { VIRT_GPIO, VIRT_SECURE_UART, VIRT_SECURE_MEM, + VIRT_SECURE_GPIO, VIRT_PCDIMM_ACPI, VIRT_ACPI_GED, VIRT_NVDIMM_ACPI, @@ -127,6 +128,7 @@ struct VirtMachineClass { bool kvm_no_adjvtime; bool no_kvm_steal_time; bool acpi_expose_flash; + bool no_secure_gpio; }; struct VirtMachineState { @@ -136,6 +138,7 @@ struct VirtMachineState { FWCfgState *fw_cfg; PFlashCFI01 *flash[2]; bool secure; + bool secure_gpio; bool highmem; bool highmem_ecam; bool its;