From patchwork Tue Sep 24 15:21:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heyi Guo X-Patchwork-Id: 11159095 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C39EA14ED for ; Tue, 24 Sep 2019 15:25:41 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 A148D214DA for ; Tue, 24 Sep 2019 15:25:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="VTxH7+E0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A148D214DA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=3+9e6rb0nsnrsZFOYbSl/VLkP7ltwzNnK+7AQWi7P5w=; b=VTxH7+E00ttwkF whVr6PY0AhdJzQTZyn9Lv2BDaeSM8t5i8vVH3+9celuzvRHLlovARvwD5AbXxLEUuzS1ZoXj00gUh 73GGQM7BYM0qgcAFC5lW/EJHmC/lXqXExJrbO9BW73cXNqNlTI2uU3nm5+2qebmwbC5YEoqrWafmn nvz1+72h7h8tre8D1Or3yMLZz6sKX1O2lPDZ9pij1YAPkoX8loLJZYX8pp904eNQLkrzhQgpRBL/Z ewZE2U6Czzd9Vr0E6xlcU4lrjisKNHQzQ2jzn/4y6UibrPPZ9ISuuQUub8AhOHeaOeVKk5t6u4Rlx VsTRSuyPO7kDHm1R1BSA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iCmhA-0005uz-WE; Tue, 24 Sep 2019 15:25:41 +0000 Received: from szxga07-in.huawei.com ([45.249.212.35] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iCmf3-00035V-N2 for linux-arm-kernel@lists.infradead.org; Tue, 24 Sep 2019 15:23:32 +0000 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 58A3B3FBB55EA3E76511; Tue, 24 Sep 2019 23:23:27 +0800 (CST) Received: from linux-Bxxcye.huawei.com (10.175.104.222) by DGGEMS409-HUB.china.huawei.com (10.3.19.209) with Microsoft SMTP Server id 14.3.439.0; Tue, 24 Sep 2019 23:23:16 +0800 From: Heyi Guo To: , , , Subject: [RFC PATCH 04/12] arm/sdei: add system reset callback Date: Tue, 24 Sep 2019 23:21:43 +0800 Message-ID: <1569338511-3572-5-git-send-email-guoheyi@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1569338511-3572-1-git-send-email-guoheyi@huawei.com> References: <1569338511-3572-1-git-send-email-guoheyi@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.104.222] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190924_082330_145912_30AAE75C X-CRM114-Status: UNSURE ( 9.47 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [45.249.212.35 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Peter Maydell , James Morse , Marc Zyngier , Jingyi Wang , Heyi Guo , wanghaibin.wang@huawei.com, Dave Martin Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org For this is a logical device which is not attached to system bus, we cannot use DeviceClass->reset interface directly. Instead we register our own reset callback to reset SDEI services when system resets. Signed-off-by: Heyi Guo Signed-off-by: Jingyi Wang Cc: Peter Maydell Cc: Dave Martin Cc: Marc Zyngier Cc: Mark Rutland Cc: James Morse --- target/arm/sdei.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/target/arm/sdei.c b/target/arm/sdei.c index b40fa36..f9a1208 100644 --- a/target/arm/sdei.c +++ b/target/arm/sdei.c @@ -1083,6 +1083,26 @@ static void qemu_sde_init(QemuSDEState *s) qemu_private_sde_init(s); } +static void qemu_sde_reset(void *opaque) +{ + int64_t ret; + CPUState *cs; + QemuSDEState *s = opaque; + + CPU_FOREACH(cs) { + QemuSDECpu *sde_cpu = get_sde_cpu(s, cs); + sdei_private_reset_common(s, cs, true); + sde_cpu->masked = true; + sde_cpu->critical_running_event = SDEI_INVALID_EVENT_ID; + sde_cpu->normal_running_event = SDEI_INVALID_EVENT_ID; + } + + ret = sdei_shared_reset_common(s, first_cpu, true); + if (ret) { + error_report("SDEI system reset failed: 0x%lx", ret); + } +} + static int qemu_sdei_pre_save(void *opaque) { QemuSDEState *s = opaque; @@ -1235,6 +1255,7 @@ static void sdei_initfn(Object *obj) sde_state = s; qemu_sde_init(s); + qemu_register_reset(qemu_sde_reset, s); } static void qemu_sde_class_init(ObjectClass *klass, void *data)