Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752841AbdGHNsi (ORCPT ); Sat, 8 Jul 2017 09:48:38 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:59946 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752097AbdGHNsg (ORCPT ); Sat, 8 Jul 2017 09:48:36 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 9B2E0600C5 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=shankerd@codeaurora.org From: Shanker Donthineni To: Marc Zyngier , Christoffer Dall Cc: linux-kernel , linux-arm-kernel , kvmarm , kvm , Eric Auger , Vikram Sethi , Andre Przywara , Shanker Donthineni Subject: [PATCH] KVM: arm/arm64: Fix bug in advertising KVM_CAP_MSI_DEVID capability Date: Sat, 8 Jul 2017 08:48:30 -0500 Message-Id: <1499521710-27494-1-git-send-email-shankerd@codeaurora.org> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1744 Lines: 45 Commit 0e4e82f154e3 ("KVM: arm64: vgic-its: Enable ITS emulation as a virtual MSI controller") tried to advertise KVM_CAP_MSI_DEVID, but the code logic was not updating the dist->msis_require_devid field correctly. If hypervisor tool creates the ITS device after VGIC initialization then we don't advertise KVM_CAP_MSI_DEVID capability. Update the field msis_require_devid to true inside vgic_its_create() to fix the issue. Fixes: 0e4e82f154e3 ("vgic-its: Enable ITS emulation as a virtual MSI controller") Signed-off-by: Shanker Donthineni --- virt/kvm/arm/vgic/vgic-init.c | 3 --- virt/kvm/arm/vgic/vgic-its.c | 1 + 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/virt/kvm/arm/vgic/vgic-init.c b/virt/kvm/arm/vgic/vgic-init.c index 3a0b899..5801261 100644 --- a/virt/kvm/arm/vgic/vgic-init.c +++ b/virt/kvm/arm/vgic/vgic-init.c @@ -285,9 +285,6 @@ int vgic_init(struct kvm *kvm) if (ret) goto out; - if (vgic_has_its(kvm)) - dist->msis_require_devid = true; - kvm_for_each_vcpu(i, vcpu, kvm) kvm_vgic_vcpu_enable(vcpu); diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index 2dff288..aa6b68d 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c @@ -1598,6 +1598,7 @@ static int vgic_its_create(struct kvm_device *dev, u32 type) INIT_LIST_HEAD(&its->device_list); INIT_LIST_HEAD(&its->collection_list); + dev->kvm->arch.vgic.msis_require_devid = true; dev->kvm->arch.vgic.has_its = true; its->enabled = false; its->dev = dev; -- Qualcomm Datacenter Technologies, Inc. on behalf of the Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.