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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 B7F2EC432C1 for ; Tue, 24 Sep 2019 15:41:24 +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 8C59C2054F for ; Tue, 24 Sep 2019 15:41:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8C59C2054F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:47312 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iCmwN-0001GH-LL for qemu-devel@archiver.kernel.org; Tue, 24 Sep 2019 11:41:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48379) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iCmfD-0001Q0-Tw for qemu-devel@nongnu.org; Tue, 24 Sep 2019 11:23:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iCmfB-0006nk-Va for qemu-devel@nongnu.org; Tue, 24 Sep 2019 11:23:39 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:46724 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iCmf4-0006hR-LV; Tue, 24 Sep 2019 11:23:31 -0400 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 5EA36BE9A1306E7B3A53; 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 23:23:17 +0800 From: Heyi Guo To: , , , Subject: [RFC PATCH 05/12] arm/sdei: add support to trigger event by GIC interrupt ID Date: Tue, 24 Sep 2019 23:21:44 +0800 Message-ID: <1569338511-3572-6-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 Content-Type: text/plain X-Originating-IP: [10.175.104.222] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 45.249.212.35 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: Mark Rutland , Peter Maydell , Marc Zyngier , James Morse , Heyi Guo , wanghaibin.wang@huawei.com, Dave Martin Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add an external interface to trigger an SDEI event bound to an interrupt by providing GIC interrupt ID. Signed-off-by: Heyi Guo Cc: Peter Maydell Cc: Dave Martin Cc: Marc Zyngier Cc: Mark Rutland Cc: James Morse --- target/arm/sdei.c | 38 ++++++++++++++++++++++++++++++++++++++ target/arm/sdei.h | 7 +++++++ 2 files changed, 45 insertions(+) diff --git a/target/arm/sdei.c b/target/arm/sdei.c index f9a1208..088ed76 100644 --- a/target/arm/sdei.c +++ b/target/arm/sdei.c @@ -453,6 +453,29 @@ static int64_t sdei_version(QemuSDEState *s, CPUState *cs, struct kvm_run *run) (0ULL << SDEI_VERSION_MINOR_SHIFT); } +static bool inject_event(QemuSDEState *s, CPUState *cs, + int32_t event, int irq) +{ + QemuSDE *sde; + + if (event < 0) { + return false; + } + sde = get_sde_no_check(s, event, cs); + if (sde->event_id == SDEI_INVALID_EVENT_ID) { + put_sde(sde, cs); + return false; + } + if (irq > 0 && sde->prop->interrupt != irq) { + /* Someone unbinds the interrupt! */ + put_sde(sde, cs); + return false; + } + sde->pending = true; + dispatch_single(s, sde, cs); + return true; +} + static int64_t unregister_single_sde(QemuSDEState *s, int32_t event, CPUState *cs, bool force) { @@ -1033,6 +1056,21 @@ void sdei_handle_request(CPUState *cs, struct kvm_run *run) } } +bool trigger_sdei_by_irq(int cpu, int irq) +{ + QemuSDEState *s = sde_state; + + if (!s || irq >= ARRAY_SIZE(s->irq_map)) { + return false; + } + + if (s->irq_map[irq] == SDEI_INVALID_EVENT_ID) { + return false; + } + + return inject_event(s, arm_get_cpu_by_id(cpu), s->irq_map[irq], irq); +} + static void qemu_shared_sde_init(QemuSDEState *s) { int i; diff --git a/target/arm/sdei.h b/target/arm/sdei.h index a69a0e4..a61e788 100644 --- a/target/arm/sdei.h +++ b/target/arm/sdei.h @@ -31,4 +31,11 @@ void sdei_handle_request(CPUState *cs, struct kvm_run *run); +/* + * Trigger an SDEI event bound to an interrupt. + * Return true if event has been triggered successfully. + * Return false if event has not been triggered for some reason. + */ +bool trigger_sdei_by_irq(int cpu, int irq); + #endif -- 1.8.3.1