From patchwork Sun Feb 28 11:19:18 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shannon Zhao X-Patchwork-Id: 63155 Delivered-To: patch@linaro.org Received: by 10.112.199.169 with SMTP id jl9csp731377lbc; Sun, 28 Feb 2016 03:25:54 -0800 (PST) X-Received: by 10.31.56.133 with SMTP id f127mr7787763vka.56.1456658743117; Sun, 28 Feb 2016 03:25:43 -0800 (PST) Return-Path: Received: from lists.xen.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id x13si13598811vkx.175.2016.02.28.03.25.42 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 28 Feb 2016 03:25:43 -0800 (PST) Received-SPF: neutral (google.com: 192.237.175.120 is neither permitted nor denied by best guess record for domain of xen-devel-bounces@lists.xen.org) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=neutral (google.com: 192.237.175.120 is neither permitted nor denied by best guess record for domain of xen-devel-bounces@lists.xen.org) smtp.mailfrom=xen-devel-bounces@lists.xen.org Received: from localhost ([127.0.0.1] helo=lists.xen.org) by lists.xen.org with esmtp (Exim 4.84) (envelope-from ) id 1aZzSL-0005Sl-O8; Sun, 28 Feb 2016 11:24:09 +0000 Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.84) (envelope-from ) id 1aZzSJ-0005RK-SA for xen-devel@lists.xen.org; Sun, 28 Feb 2016 11:24:07 +0000 Received: from [193.109.254.147] by server-13.bemta-14.messagelabs.com id D2/74-02874-7D8D2D65; Sun, 28 Feb 2016 11:24:07 +0000 X-Env-Sender: zhaoshenglong@huawei.com X-Msg-Ref: server-13.tower-27.messagelabs.com!1456658637!27290940!1 X-Originating-IP: [58.251.152.64] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 8.11; banners=-,-,- X-VirusChecked: Checked Received: (qmail 20617 invoked from network); 28 Feb 2016 11:24:05 -0000 Received: from szxga01-in.huawei.com (HELO szxga01-in.huawei.com) (58.251.152.64) by server-13.tower-27.messagelabs.com with RC4-SHA encrypted SMTP; 28 Feb 2016 11:24:05 -0000 Received: from 172.24.1.49 (EHLO szxeml432-hub.china.huawei.com) ([172.24.1.49]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DFJ26961; Sun, 28 Feb 2016 19:20:44 +0800 (CST) Received: from HGHY1Z002260041.china.huawei.com (10.177.16.142) by szxeml432-hub.china.huawei.com (10.82.67.209) with Microsoft SMTP Server id 14.3.235.1; Sun, 28 Feb 2016 19:20:33 +0800 From: Shannon Zhao To: Date: Sun, 28 Feb 2016 19:19:18 +0800 Message-ID: <1456658360-16080-23-git-send-email-zhaoshenglong@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1456658360-16080-1-git-send-email-zhaoshenglong@huawei.com> References: <1456658360-16080-1-git-send-email-zhaoshenglong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.16.142] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020202.56D2D80C.00B1, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: c8a47213455ec9cab06758790f973dd5 Cc: peter.huangpeng@huawei.com, zhaoshenglong@huawei.com, stefano.stabellini@citrix.com, ian.campbell@citrix.com, shannon.zhao@linaro.org Subject: [Xen-devel] [PATCH v4 22/24] xen/acpi: Fix event-channel interrupt when booting with ACPI X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" From: Shannon Zhao Store the event-channel interrupt number and flag in HVM parameter HVM_PARAM_CALLBACK_IRQ. Then Dom0 could get it through hypercall HVMOP_get_param. Signed-off-by: Shannon Zhao --- v4: always set HVM_PARAM_CALLBACK_IRQ parameter --- xen/arch/arm/domain_build.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index 7750798..80c4230 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -2003,6 +2003,7 @@ static void initrd_load(struct kernel_info *kinfo) static void evtchn_fixup(struct domain *d, struct kernel_info *kinfo) { int res, node; + u64 val; gic_interrupt_t intr; /* @@ -2018,6 +2019,15 @@ static void evtchn_fixup(struct domain *d, struct kernel_info *kinfo) printk("Allocating PPI %u for event channel interrupt\n", d->arch.evtchn_irq); + /* Set the value of domain param HVM_PARAM_CALLBACK_IRQ */ + val = (u64)HVM_PARAM_CALLBACK_TYPE_EVENT << 56; + val |= (2 << 8); /* Active-low level-sensitive */ + val |= d->arch.evtchn_irq & 0xff; + d->arch.hvm_domain.params[HVM_PARAM_CALLBACK_IRQ] = val; + + if ( !acpi_disabled ) + return; + /* Fix up "interrupts" in /hypervisor node */ node = fdt_path_offset(kinfo->fdt, "/hypervisor"); if ( node < 0 )