From patchwork Thu Jun 18 17:40:58 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 6639591 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 557F8C0020 for ; Thu, 18 Jun 2015 17:41:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E1B1A20621 for ; Thu, 18 Jun 2015 17:41:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D60362062E for ; Thu, 18 Jun 2015 17:41:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754505AbbFRRli (ORCPT ); Thu, 18 Jun 2015 13:41:38 -0400 Received: from mail-wg0-f52.google.com ([74.125.82.52]:33558 "EHLO mail-wg0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754176AbbFRRla (ORCPT ); Thu, 18 Jun 2015 13:41:30 -0400 Received: by wgez8 with SMTP id z8so69928367wge.0 for ; Thu, 18 Jun 2015 10:41:29 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=NbD4+zFbT38s4S2mbDhn4YMFE0qe559X56fatW3Ylbo=; b=Z+G4gUxeJAtXzD7iSNKJt5WSZecuT2U02jtAf15D7Q63p2PrVrCwBUAAksJEADKFty dX1N2qwS/2X6agk6XBCQzEPIvuLEh69bL7tIsbW1GZnJEWUyYjbG4ux4Kr2QpFPpK9ix 9RnAfAyNcBYYm5bJNBpYpFS4wrUTBOOHsQZRuHPjmcvGeZRZrtEsaGyjp7SOF1tzsKaI 4uGg/1Wv0rPnTmeRQYAG18xfQ2XnD8a05I/0ffx+WjF5xYBCq05K9HdyO8vwzcsnUP5e tCZErP2xlIP/mJxTPS0Pu2+Ys1QM05vzqU2NfVy5fkZD9dZUzTSNwO2VVw1Pbxla3fVd tPKg== X-Gm-Message-State: ALoCoQli8Y1RYcYtU1O/w/nUVO60bq2nxbGEvyt6j4o1chqoFZ92B/GPwAYxmAeaRLSvLVKIOnio X-Received: by 10.180.215.101 with SMTP id oh5mr31148870wic.6.1434649289610; Thu, 18 Jun 2015 10:41:29 -0700 (PDT) Received: from gnx2579.home (LCaen-156-56-7-90.w80-11.abo.wanadoo.fr. [80.11.198.90]) by mx.google.com with ESMTPSA id bg6sm13222854wjc.13.2015.06.18.10.41.28 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 18 Jun 2015 10:41:28 -0700 (PDT) From: Eric Auger To: eric.auger@st.com, eric.auger@linaro.org, christoffer.dall@linaro.org, marc.zyngier@arm.com, andre.przywara@arm.com, p.fedin@samsung.com, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: patches@linaro.org Subject: [RFC 6/6] KVM: arm: implement kvm_set_msi by gsi direct mapping Date: Thu, 18 Jun 2015 19:40:58 +0200 Message-Id: <1434649258-27065-7-git-send-email-eric.auger@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1434649258-27065-1-git-send-email-eric.auger@linaro.org> References: <1434649258-27065-1-git-send-email-eric.auger@linaro.org> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-7.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If the ITS modality is not available, let's simply support MSI injection by transforming the MSI.data into an SPI ID. This becomes possible to use KVM_SIGNAL_MSI ioctl for arm too. Signed-off-by: Eric Auger --- arch/arm/kvm/Kconfig | 1 + virt/kvm/arm/vgic.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig index 151e710..0f58baf 100644 --- a/arch/arm/kvm/Kconfig +++ b/arch/arm/kvm/Kconfig @@ -31,6 +31,7 @@ config KVM select KVM_VFIO select HAVE_KVM_EVENTFD select HAVE_KVM_IRQFD + select HAVE_KVM_MSI select HAVE_KVM_IRQCHIP select HAVE_KVM_IRQ_ROUTING depends on ARM_VIRT_EXT && ARM_LPAE && ARM_ARCH_TIMER diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 16d232f..40e96f9 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -2293,6 +2293,11 @@ int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e, return kvm->arch.vgic.vm_ops.inject_msi(kvm, &msi); else return -ENODEV; + case KVM_IRQ_ROUTING_MSI: + if (kvm->arch.vgic.vm_ops.inject_msi) + return -EINVAL; + else + return kvm_vgic_inject_irq(kvm, 0, e->msi.data, level); default: return -EINVAL; }