From patchwork Wed Mar 30 10:08:12 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shannon Zhao X-Patchwork-Id: 64662 Delivered-To: patch@linaro.org Received: by 10.112.199.169 with SMTP id jl9csp2500560lbc; Wed, 30 Mar 2016 03:10:42 -0700 (PDT) X-Received: by 10.55.81.3 with SMTP id f3mr8509371qkb.35.1459332640477; Wed, 30 Mar 2016 03:10:40 -0700 (PDT) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id c18si3056684qkb.8.2016.03.30.03.10.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 30 Mar 2016 03:10:40 -0700 (PDT) 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.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1alD4B-0002jd-JQ; Wed, 30 Mar 2016 10:09:35 +0000 Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1alD4A-0002hX-76 for xen-devel@lists.xen.org; Wed, 30 Mar 2016 10:09:34 +0000 Received: from [193.109.254.147] by server-2.bemta-14.messagelabs.com id 17/88-03301-DD5ABF65; Wed, 30 Mar 2016 10:09:33 +0000 X-Env-Sender: zhaoshenglong@huawei.com X-Msg-Ref: server-7.tower-27.messagelabs.com!1459332567!34501224!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 13969 invoked from network); 30 Mar 2016 10:09:32 -0000 Received: from szxga01-in.huawei.com (HELO szxga01-in.huawei.com) (58.251.152.64) by server-7.tower-27.messagelabs.com with RC4-SHA encrypted SMTP; 30 Mar 2016 10:09:32 -0000 Received: from 172.24.1.60 (EHLO SZXEML423-HUB.china.huawei.com) ([172.24.1.60]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DHX04637; Wed, 30 Mar 2016 18:09:14 +0800 (CST) Received: from HGHY1Z002260041.china.huawei.com (10.177.16.142) by SZXEML423-HUB.china.huawei.com (10.82.67.154) with Microsoft SMTP Server id 14.3.235.1; Wed, 30 Mar 2016 18:09:02 +0800 From: Shannon Zhao To: Date: Wed, 30 Mar 2016 18:08:12 +0800 Message-ID: <1459332494-18964-20-git-send-email-zhaoshenglong@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1459332494-18964-1-git-send-email-zhaoshenglong@huawei.com> References: <1459332494-18964-1-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=0001.0A020205.56FBA5CC.0061, 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: e16ceb0fd960fb6004fa76cc97181311 Cc: sstabellini@kernel.org, peter.huangpeng@huawei.com, julien.grall@arm.com, stefano.stabellini@citrix.com, shannon.zhao@linaro.org, zhaoshenglong@huawei.com Subject: [Xen-devel] [PATCH v8 19/21] 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 Reviewed-by: Stefano Stabellini Acked-by: Julien Grall --- xen/arch/arm/domain_build.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index d9957ad..aba714c 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -2050,6 +2050,7 @@ 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; /* @@ -2065,6 +2066,19 @@ 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_PPI << 56; + val |= (2 << 8); /* Active-low level-sensitive */ + val |= d->arch.evtchn_irq & 0xff; + d->arch.hvm_domain.params[HVM_PARAM_CALLBACK_IRQ] = val; + + /* + * When booting Dom0 using ACPI, Dom0 can only get the event channel + * interrupt via hypercall. + */ + if ( !acpi_disabled ) + return; + /* Fix up "interrupts" in /hypervisor node */ node = fdt_path_offset(kinfo->fdt, "/hypervisor"); if ( node < 0 )