From patchwork Tue Jul 7 12:53:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 1324319 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=aJ30U1d8; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 4B1Msh1P55z9s1x for ; Tue, 7 Jul 2020 22:57:28 +1000 (AEST) Received: from localhost ([::1]:32858 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jsnA5-00032i-GD for incoming@patchwork.ozlabs.org; Tue, 07 Jul 2020 08:57:25 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38034) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jsn79-0007U3-4g for qemu-devel@nongnu.org; Tue, 07 Jul 2020 08:54:23 -0400 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:55837 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jsn76-0004ll-Dv for qemu-devel@nongnu.org; Tue, 07 Jul 2020 08:54:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1594126459; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type:in-reply-to:in-reply-to: references:references; bh=iZ8q6BNQD71G/ReGAtp/ZouIvCh6XyxiS1/Hett2Vw4=; b=aJ30U1d8yFmcFVe6DraJYaS1x0tZVxXu1RO6+o6GpmHI1FqAqymB9PYm/QEyytiXxjubIb t48VCneZeRklPGihcV+3xCkHzLKRd9PzTeA+kT1ahLQnyuwhdlYLDzK7FULaC7DIVupe4X n0kmUu8E3FkWm87QoiMsEi8GCV7EQtw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-62-KeaHNizrNy-Vz10QP_abLw-1; Tue, 07 Jul 2020 08:54:18 -0400 X-MC-Unique: KeaHNizrNy-Vz10QP_abLw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0ABC180578F; Tue, 7 Jul 2020 12:54:16 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-112-200.ams2.redhat.com [10.36.112.200]) by smtp.corp.redhat.com (Postfix) with ESMTP id DE66027DE65; Tue, 7 Jul 2020 12:53:57 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 1476C31F2C; Tue, 7 Jul 2020 14:53:57 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PATCH v5 04/20] acpi: ged: add control regs Date: Tue, 7 Jul 2020 14:53:40 +0200 Message-Id: <20200707125356.32450-5-kraxel@redhat.com> In-Reply-To: <20200707125356.32450-1-kraxel@redhat.com> References: <20200707125356.32450-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.61; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/07 00:31:00 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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: Laurent Vivier , Peter Maydell , Thomas Huth , Eduardo Habkost , Sergio Lopez , "Michael S. Tsirkin" , Shannon Zhao , qemu-arm@nongnu.org, Gerd Hoffmann , Igor Mammedov , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Add control regs (sleep, reset) for hw-reduced acpi. Signed-off-by: Gerd Hoffmann --- include/hw/acpi/generic_event_device.h | 7 ++++ hw/acpi/generic_event_device.c | 44 ++++++++++++++++++++++++++ 2 files changed, 51 insertions(+) diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/generic_event_device.h index 90a9180db572..474c92198080 100644 --- a/include/hw/acpi/generic_event_device.h +++ b/include/hw/acpi/generic_event_device.h @@ -72,6 +72,12 @@ #define ACPI_GED_EVT_SEL_OFFSET 0x0 #define ACPI_GED_EVT_SEL_LEN 0x4 +#define ACPI_GED_REG_SLEEP_CTL 0x00 +#define ACPI_GED_REG_SLEEP_STS 0x01 +#define ACPI_GED_REG_RESET 0x02 +#define ACPI_GED_RESET_VALUE 0x42 +#define ACPI_GED_REG_COUNT 0x03 + #define GED_DEVICE "GED" #define AML_GED_EVT_REG "EREG" #define AML_GED_EVT_SEL "ESEL" @@ -87,6 +93,7 @@ typedef struct GEDState { MemoryRegion evt; + MemoryRegion regs; uint32_t sel; } GEDState; diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c index b8abdefa1c77..491df80a5cc7 100644 --- a/hw/acpi/generic_event_device.c +++ b/hw/acpi/generic_event_device.c @@ -20,6 +20,7 @@ #include "hw/qdev-properties.h" #include "migration/vmstate.h" #include "qemu/error-report.h" +#include "sysemu/runstate.h" static const uint32_t ged_supported_events[] = { ACPI_GED_MEM_HOTPLUG_EVT, @@ -176,6 +177,45 @@ static const MemoryRegionOps ged_evt_ops = { }, }; +static uint64_t ged_regs_read(void *opaque, hwaddr addr, unsigned size) +{ + return 0; +} + +static void ged_regs_write(void *opaque, hwaddr addr, uint64_t data, + unsigned int size) +{ + bool slp_en; + int slp_typ; + + switch (addr) { + case ACPI_GED_REG_SLEEP_CTL: + slp_typ = (data >> 2) & 0x07; + slp_en = (data >> 5) & 0x01; + if (slp_en && slp_typ == 5) { + qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); + } + return; + case ACPI_GED_REG_SLEEP_STS: + return; + case ACPI_GED_REG_RESET: + if (data == ACPI_GED_RESET_VALUE) { + qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); + } + return; + } +} + +static const MemoryRegionOps ged_regs_ops = { + .read = ged_regs_read, + .write = ged_regs_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 1, + }, +}; + static void acpi_ged_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { @@ -332,6 +372,10 @@ static void acpi_ged_initfn(Object *obj) sysbus_init_mmio(sbd, &s->container_memhp); acpi_memory_hotplug_init(&s->container_memhp, OBJECT(dev), &s->memhp_state, 0); + + memory_region_init_io(&ged_st->regs, obj, &ged_regs_ops, ged_st, + TYPE_ACPI_GED "-regs", ACPI_GED_REG_COUNT); + sysbus_init_mmio(sbd, &ged_st->regs); } static void acpi_ged_class_init(ObjectClass *class, void *data)