From mboxrd@z Thu Jan 1 00:00:00 1970 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 550DFC433DB for ; Wed, 20 Jan 2021 09:30:07 +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 DA1CF22D08 for ; Wed, 20 Jan 2021 09:30:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DA1CF22D08 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:42430 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l29oT-0002ov-Tz for qemu-devel@archiver.kernel.org; Wed, 20 Jan 2021 04:30:05 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:50616) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l29mS-0000t9-Q2 for qemu-devel@nongnu.org; Wed, 20 Jan 2021 04:28:00 -0500 Received: from mail-lj1-x231.google.com ([2a00:1450:4864:20::231]:46567) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1l29mO-00055m-RF for qemu-devel@nongnu.org; Wed, 20 Jan 2021 04:28:00 -0500 Received: by mail-lj1-x231.google.com with SMTP id u11so25195442ljo.13 for ; Wed, 20 Jan 2021 01:27:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=ZAUGXZKLwFoOrXUE2K2BvuNgQf8/KK9NgRNqx7LDTjE=; b=kyXhf3TfCZ7dPZKE+Kc79+mAEt+u4+YOBn11xsIR/lQJz8ubXZurUSu0s6TQROTYy+ xUpce4t+b58pubzXvnO/iWqbe0VaCm+XLzbSHiHXj+5+tr8g+jz6ktkeSExhQ+Pdr9a4 +QZDfA4e1B4J4VWnGBhKATdEI1cpTHduql53xjT6YAuGFuRWeM5qTXzUy7fQNI6vYE0J 0lumhJ+mkHf6OpnPK9TvaBFLJnu8Fb7++bksaO/fGfbhePsmHl7jJDB151ZYI8pTOkuH XBOTNatW6I7v1DBy+Q0iJj9gh0clxb8QgA3Qe3PHrvAs1sbRHrktJOcxrZnAzI3YwsaS xL+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=ZAUGXZKLwFoOrXUE2K2BvuNgQf8/KK9NgRNqx7LDTjE=; b=cQkPqeylHXqCvnrqTMuVpTnGfJf7zNJaK+382Vk9BMAaAVc5Wf9a1wgxS71wiMCKFO QGTMrzE/vXl7R/FX9PIPtGjBycTyRFHho6mmsHO5eRyD/wAclfFCdtbFv4gcqIDojKhr MBYFf0Od4tW3FpNZOtN4+w+7+5H4fLxjDNOQM3uZL+2b/rtKYLcj3cOPb6YQHKeU94dv Uk4qYjXBLHSRMouVQWPDxoM+w9yGdS/lvxeIytiNmY3wNf6zQS2wS73nrSoqyMQegJ3m vL11VjWCPxSBbHztJHE4+TRDEDze08zPG9SK1mtZp4nxHuGJyXhbkUmbubWuRvwGRz3h mnDQ== X-Gm-Message-State: AOAM530GaU0SyrhdUx6Lga0NEVarmScz+TfmM4aEVRnpH5iIDMrfe9bb NooamIamhYJQSffVTxzzCxyjXQ== X-Google-Smtp-Source: ABdhPJz/JJElcFCYQ8nob3ZFBFlGk4W0UTvVBwW8YSWcaQxIe7GXb0jLvuKWFEwxFsH11iqBWRFxEg== X-Received: by 2002:a2e:8557:: with SMTP id u23mr3988706ljj.287.1611134873626; Wed, 20 Jan 2021 01:27:53 -0800 (PST) Received: from localhost.localdomain ([2.92.195.184]) by smtp.gmail.com with ESMTPSA id r81sm147479lff.215.2021.01.20.01.27.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jan 2021 01:27:53 -0800 (PST) From: Maxim Uvarov To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCHv8 1/3] hw: gpio: implement gpio-pwr driver for qemu reset/poweroff Date: Wed, 20 Jan 2021 12:27:46 +0300 Message-Id: <20210120092748.14789-2-maxim.uvarov@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210120092748.14789-1-maxim.uvarov@linaro.org> References: <20210120092748.14789-1-maxim.uvarov@linaro.org> Received-SPF: pass client-ip=2a00:1450:4864:20::231; envelope-from=maxim.uvarov@linaro.org; helo=mail-lj1-x231.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, drjones@redhat.com, Maxim Uvarov , Jose.Marinho@arm.com, f4bug@amsat.org, 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..7714fa0dc4 --- /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')) -- 2.17.1