From patchwork Fri Mar 17 11:27:03 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lan,Tianyu" X-Patchwork-Id: 9630435 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id A47B260249 for ; Fri, 17 Mar 2017 11:37:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8EC68284E9 for ; Fri, 17 Mar 2017 11:37:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 83A002862B; Fri, 17 Mar 2017 11:37:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3025B284E9 for ; Fri, 17 Mar 2017 11:37:35 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1coqAB-0003if-CV; Fri, 17 Mar 2017 11:35:19 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1coqAA-0003h1-9w for xen-devel@lists.xen.org; Fri, 17 Mar 2017 11:35:18 +0000 Received: from [193.109.254.147] by server-11.bemta-6.messagelabs.com id 8E/09-04971-5F9CBC85; Fri, 17 Mar 2017 11:35:17 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrNLMWRWlGSWpSXmKPExsVywNwkQvfrydM RBrPWcVss+biYxYHR4+ju30wBjFGsmXlJ+RUJrBmbVjQwFWwUrzh25gNTA+M9oS5GTg4WgVtM Eve3W3cxcnEICUxjlHjx7AEbSEJCgFfiyLIZrBB2gMT2wx/ZIIr6GSVOz5jMApJgE1CXOLF4I iOILSIgLXHt82VGkCJmgY2MEjtWLATrFhYIlZjWf5UJYp2qxLu7U8FsXgEXiS9b9wPZHEAbFC TmTLIBCXMKuErcbXvADmILAZXc67rCMoGRbwEjwypGjeLUorLUIl1DE72kosz0jJLcxMwcXUM DM73c1OLixPTUnMSkYr3k/NxNjMBAYQCCHYzXNwYcYpTkYFIS5VURPBEhxJeUn1KZkVicEV9U mpNafIhRhoNDSYJ3SSRQTrAoNT21Ii0zBxiyMGkJDh4lEd5SkDRvcUFibnFmOkTqFKOilDjvP ZCEAEgiozQPrg0WJ5cYZaWEeRmBDhHiKUgtys0sQZV/xSjOwagkzPseZApPZl4J3PRXQIuZgB Yn/jwCsrgkESEl1cA4592udxPlY1qCnBTC7qp/3X05Vcs2rJHD+P9R6w0XwrzU9U5e0nJufPD Hn2HjTD75v1c65yy8VyI7Mch2ya2V7AXT9Dt2OXN0PH1bYFnzRuTruiDfuuNXqvb76zOeqNh1 tiwrVDBllZFVqseX+v/Rv1m+x2ywsrDcc+de2a+/67Tf+aVWGbkpsRRnJBpqMRcVJwIAHkE26 I4CAAA= X-Env-Sender: tianyu.lan@intel.com X-Msg-Ref: server-8.tower-27.messagelabs.com!1489750513!81993610!2 X-Originating-IP: [192.55.52.88] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogMTkyLjU1LjUyLjg4ID0+IDM3NDcyNQ==\n X-StarScan-Received: X-StarScan-Version: 9.2.3; banners=-,-,- X-VirusChecked: Checked Received: (qmail 47006 invoked from network); 17 Mar 2017 11:35:16 -0000 Received: from mga01.intel.com (HELO mga01.intel.com) (192.55.52.88) by server-8.tower-27.messagelabs.com with DHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 17 Mar 2017 11:35:16 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=intel.com; i=@intel.com; q=dns/txt; s=intel; t=1489750516; x=1521286516; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=yy2sm1I95HfZRpNeJ5Bii0t62GVsj9Jm3Jqvgp92cds=; b=fzlf3Di2s8TeMZiKUIHajLwgIzEBHiIVqXgK4rqbkj6oTi18DcA0WYVg FaCfZOJMQjG4yWQ2AqbIi4ALsUDujw==; Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Mar 2017 04:35:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.36,176,1486454400"; d="scan'208"; a="1109518272" Received: from lantianyu-ws.sh.intel.com (HELO localhost) ([10.239.159.159]) by orsmga001.jf.intel.com with ESMTP; 17 Mar 2017 04:35:05 -0700 From: Lan Tianyu To: xen-devel@lists.xen.org Date: Fri, 17 Mar 2017 19:27:03 +0800 Message-Id: <1489750043-17260-4-git-send-email-tianyu.lan@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1489750043-17260-1-git-send-email-tianyu.lan@intel.com> References: <1489750043-17260-1-git-send-email-tianyu.lan@intel.com> Cc: Lan Tianyu , kevin.tian@intel.com, sstabellini@kernel.org, andrew.cooper3@citrix.com, julien.grall@arm.com, jbeulich@suse.com, chao.gao@intel.com Subject: [Xen-devel] [RFC PATCH 3/23] VIOMMU: Add irq request callback to deal with irq remapping 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: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP This patch is to add irq request callback for platform implementation to deal with irq remapping request. Signed-off-by: Lan Tianyu --- xen/common/viommu.c | 11 +++++++++++ xen/include/asm-arm/viommu.h | 4 ++++ xen/include/asm-x86/viommu.h | 15 +++++++++++++++ xen/include/xen/viommu.h | 8 ++++++++ 4 files changed, 38 insertions(+) diff --git a/xen/common/viommu.c b/xen/common/viommu.c index 4c1c788..62c66db 100644 --- a/xen/common/viommu.c +++ b/xen/common/viommu.c @@ -87,6 +87,17 @@ u64 viommu_query_caps(struct domain *d) return info->ops->query_caps(d); } +int viommu_handle_irq_request(struct domain *d, + struct irq_remapping_request *request) +{ + struct viommu_info *info = &d->viommu; + + if ( !info || !info->ops || !info->ops->handle_irq_request) + return -EINVAL; + + return info->ops->handle_irq_request(d, request); +} + /* * Local variables: * mode: C diff --git a/xen/include/asm-arm/viommu.h b/xen/include/asm-arm/viommu.h index ef6a60b..6a81ecb 100644 --- a/xen/include/asm-arm/viommu.h +++ b/xen/include/asm-arm/viommu.h @@ -22,6 +22,10 @@ #include +struct irq_remapping_request +{ +}; + static inline const struct viommu_ops *viommu_get_ops(void) { return NULL; diff --git a/xen/include/asm-x86/viommu.h b/xen/include/asm-x86/viommu.h index efb435f..b6e01a5 100644 --- a/xen/include/asm-x86/viommu.h +++ b/xen/include/asm-x86/viommu.h @@ -23,6 +23,21 @@ #include #include +struct irq_remapping_request +{ + u8 type; + u16 source_id; + union { + /* MSI */ + struct { + u64 addr; + u32 data; + } msi; + /* Redirection Entry in IOAPIC */ + u64 rte; + } msg; +}; + static inline const struct viommu_ops *viommu_get_ops(void) { return NULL; diff --git a/xen/include/xen/viommu.h b/xen/include/xen/viommu.h index a0abbdf..246b29d 100644 --- a/xen/include/xen/viommu.h +++ b/xen/include/xen/viommu.h @@ -24,6 +24,10 @@ #define NR_VIOMMU_PER_DOMAIN 1 +/* IRQ request type */ +#define VIOMMU_REQUEST_IRQ_MSI 0 +#define VIOMMU_REQUEST_IRQ_APIC 1 + struct viommu { u64 base_address; u64 length; @@ -36,6 +40,8 @@ struct viommu_ops { u64 (*query_caps)(struct domain *d); int (*create)(struct domain *d, struct viommu *viommu); int (*destroy)(struct viommu *viommu); + int (*handle_irq_request)(struct domain *d, + struct irq_remapping_request *request); }; struct viommu_info { @@ -48,6 +54,8 @@ int viommu_init_domain(struct domain *d); int viommu_create(struct domain *d, u64 base_address, u64 length, u64 caps); int viommu_destroy(struct domain *d, u32 viommu_id); u64 viommu_query_caps(struct domain *d); +int viommu_handle_irq_request(struct domain *d, + struct irq_remapping_request *request); #endif /* __XEN_VIOMMU_H__ */