From nobody Wed Nov 19 12:36:28 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1616017956; cv=none; d=zohomail.com; s=zohoarc; b=igivs5+O0FzkNHWVXKVUY50HjwfZ6Tln3t/dMfq3003RqnC1ApXP2ufU8Qe03JK3d6hDXJ0ideSxiRHOSJYo357e+H0bQfIwJ5e1inyrprl7EbVXhWSGqbnPM3RDPBmIuzsZX2/MjxXOhskSCu/VULSXGIPX3MmHIoBpqgGCHKg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1616017956; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=rgHw6leN7t6nkAmavgXGbrPwEFvWOBwJ/cC68nDmY3A=; b=PTq5g80v1zHO84cyGYyUgsRdX9KMFkvDbuT5ebNfLFWTQjynYUW66LPJxPeFuup1BFBSvVyni2XDYlB4Ewunzg9HDcBfJTfbggeNGGa7Gtxd5RcgbJcqLE+Oov9Myi8t4cM+1hMmj4EMZSrsz+8fH8hsnhtoCCAP8wtvdKi6SZg= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1616017956113748.1936452977454; Wed, 17 Mar 2021 14:52:36 -0700 (PDT) Received: from localhost ([::1]:58028 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lMe5i-0002d2-AL for importer@patchew.org; Wed, 17 Mar 2021 17:52:34 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56274) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lMe53-00026e-7T for qemu-devel@nongnu.org; Wed, 17 Mar 2021 17:51:53 -0400 Received: from mga11.intel.com ([192.55.52.93]:56330) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lMe4z-0005Df-TK for qemu-devel@nongnu.org; Wed, 17 Mar 2021 17:51:52 -0400 Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Mar 2021 14:51:42 -0700 Received: from ls.sc.intel.com (HELO localhost) ([143.183.96.54]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Mar 2021 14:51:39 -0700 IronPort-SDR: EOgu7rKNYsToXt5YYLvUrIaRTMI5bDI0nrGkZoQvA0f5pCZZ9yL3lMpgu48yhCVbZKVMzltkW2 Dpbwvj7qKIGg== X-IronPort-AV: E=McAfee;i="6000,8403,9926"; a="186194601" X-IronPort-AV: E=Sophos;i="5.81,257,1610438400"; d="scan'208";a="186194601" IronPort-SDR: t6pkbIFussvQYx6jzhj6/Wtj0MGcGrksNkGGMVhM8MbCXM19J5rbRb3A62R2RIMDreLT9qJx71 V8tBj3/Gw/JQ== X-IronPort-AV: E=Sophos;i="5.81,257,1610438400"; d="scan'208";a="412816439" From: isaku.yamahata@gmail.com To: qemu-devel@nongnu.org Subject: [PATCH] acpi:piix4, vt82c686: reinitialize acpi PM device on reset Date: Wed, 17 Mar 2021 14:49:31 -0700 Message-Id: <1ceb31c6782f701674d3b907a419f5a82adb37bc.1616012290.git.isaku.yamahata@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210317104146.784de0c1@redhat.com> References: <20210317104146.784de0c1@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.55.52.93; envelope-from=isaku.yamahata@intel.com; helo=mga11.intel.com X-Spam_score_int: -44 X-Spam_score: -4.5 X-Spam_bar: ---- X-Spam_report: (-4.5 / 5.0 requ) BAYES_00=-1.9, DKIM_ADSP_CUSTOM_MED=0.001, FORGED_GMAIL_RCVD=1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, NML_ADSP_CUSTOM_MED=0.9, RCVD_IN_DNSWL_HI=-5, 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: isaku.yamahata@intel.com, berrange@redhat.com, mst@redhat.com, f4bug@amsat.org, Reinoud Zandijk , aurelien@aurel32.net, pbonzini@redhat.com, Igor Mammedov , isaku.yamahata@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Isaku Yamahata Commit 6be8cf56bc8b made sure that SCI is enabled in PM1.CNT on reset in acpi_only mode by modifying acpi_pm1_cnt_reset() and that worked for q35 as expected. The function was introduced by commit eaba51c573a (acpi, acpi_piix, vt82c686: factor out PM1_CNT logic) that forgot to actually call it at piix4 reset time and as result SCI_EN wasn't set as was expected by 6be8cf56bc8b in acpi_only mode. So Windows crashes when it notices that SCI_EN is not set and FADT is not providing information about how to enable it anymore. Reproducer: qemu-system-x86_64 -enable-kvm -M pc-i440fx-6.0,smm=3Doff -cdrom any_win= dows_10x64.iso Fix it by calling acpi_pm1_cnt_reset() at piix4 reset time. Occasionally this patch adds reset acpi PM related registers on piix4/vt582c686 reset time and de-assert sci. piix4_pm_realize() initializes acpi pm tmr, evt, cnt and gpe. via_pm_realize() initializes acpi pm tmr, evt and cnt. reset them on device reset. pm_reset() in ich9.c correctly calls corresponding reset functions. Fixes: 6be8cf56bc8b (acpi/core: always set SCI_EN when SMM isn't supported) Reported-by: Reinoud Zandijk Co-developed-by: Igor Mammedov Signed-off-by: Igor Mammedov Signed-off-by: Isaku Yamahata --- CC: imammedo@redhat.com CC: isaku.yamahata@intel.com CC: mst@redhat.com CC: reinoud@NetBSD.org CC: isaku.yamahata@gmail.com CC: berrange@redhat.com CC: pbonzini@redhat.com CC: f4bug@amsat.org CC: aurelien@aurel32.net --- hw/acpi/piix4.c | 7 +++++++ hw/isa/vt82c686.c | 5 +++++ 2 files changed, 12 insertions(+) diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 1efc0ded9f..a00525025b 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -325,6 +325,13 @@ static void piix4_pm_reset(DeviceState *dev) /* Mark SMM as already inited (until KVM supports SMM). */ pci_conf[0x5B] =3D 0x02; } + + acpi_pm1_evt_reset(&s->ar); + acpi_pm1_cnt_reset(&s->ar); + acpi_pm_tmr_reset(&s->ar); + acpi_gpe_reset(&s->ar); + acpi_update_sci(&s->ar, s->irq); + pm_io_space_update(s); acpi_pcihp_reset(&s->acpi_pci_hotplug, !s->use_acpi_root_pci_hotplug); } diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c index 05d084f698..7bacad03e2 100644 --- a/hw/isa/vt82c686.c +++ b/hw/isa/vt82c686.c @@ -167,6 +167,11 @@ static void via_pm_reset(DeviceState *d) /* SMBus IO base */ pci_set_long(s->dev.config + 0x90, 1); =20 + acpi_pm1_evt_reset(&s->ar); + acpi_pm1_cnt_reset(&s->ar); + acpi_pm_tmr_reset(&s->ar); + pm_update_sci(s); + pm_io_space_update(s); smb_io_space_update(s); } --=20 2.25.1