From patchwork Tue Feb 16 10:35:28 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Avi Kivity X-Patchwork-Id: 79579 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o1GAaKpp016386 for ; Tue, 16 Feb 2010 10:36:20 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932862Ab0BPKf4 (ORCPT ); Tue, 16 Feb 2010 05:35:56 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42504 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932829Ab0BPKfl (ORCPT ); Tue, 16 Feb 2010 05:35:41 -0500 Received: from int-mx08.intmail.prod.int.phx2.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o1GAZf8L008608 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 16 Feb 2010 05:35:41 -0500 Received: from cleopatra.tlv.redhat.com (cleopatra.tlv.redhat.com [10.35.255.11]) by int-mx08.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o1GAZe8g001304; Tue, 16 Feb 2010 05:35:40 -0500 Received: from localhost.localdomain (file.tlv.redhat.com [10.35.255.8]) by cleopatra.tlv.redhat.com (Postfix) with ESMTP id 215E8250AEE; Tue, 16 Feb 2010 12:35:37 +0200 (IST) From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 30/38] KVM: enable PCI multiple-segments for pass-through device Date: Tue, 16 Feb 2010 12:35:28 +0200 Message-Id: <1266316536-28936-31-git-send-email-avi@redhat.com> In-Reply-To: <1266316536-28936-1-git-send-email-avi@redhat.com> References: <1266316536-28936-1-git-send-email-avi@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.21 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Tue, 16 Feb 2010 10:36:20 +0000 (UTC) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index d47ceda..0bf3df5 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1569,6 +1569,7 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_HYPERV: case KVM_CAP_HYPERV_VAPIC: case KVM_CAP_HYPERV_SPIN: + case KVM_CAP_PCI_SEGMENT: r = 1; break; case KVM_CAP_COALESCED_MMIO: diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 4c4937e..dfa54be 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -500,6 +500,7 @@ struct kvm_ioeventfd { #define KVM_CAP_HYPERV 44 #define KVM_CAP_HYPERV_VAPIC 45 #define KVM_CAP_HYPERV_SPIN 46 +#define KVM_CAP_PCI_SEGMENT 47 #ifdef KVM_CAP_IRQ_ROUTING @@ -694,8 +695,9 @@ struct kvm_assigned_pci_dev { __u32 busnr; __u32 devfn; __u32 flags; + __u32 segnr; union { - __u32 reserved[12]; + __u32 reserved[11]; }; }; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index dfde04b..665c370 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -400,6 +400,7 @@ struct kvm_assigned_dev_kernel { struct work_struct interrupt_work; struct list_head list; int assigned_dev_id; + int host_segnr; int host_busnr; int host_devfn; unsigned int entries_nr; diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c index f51e684..057e2cc 100644 --- a/virt/kvm/assigned-dev.c +++ b/virt/kvm/assigned-dev.c @@ -526,7 +526,8 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm, r = -ENOMEM; goto out; } - dev = pci_get_bus_and_slot(assigned_dev->busnr, + dev = pci_get_domain_bus_and_slot(assigned_dev->segnr, + assigned_dev->busnr, assigned_dev->devfn); if (!dev) { printk(KERN_INFO "%s: host device not found\n", __func__); @@ -548,6 +549,7 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm, pci_reset_function(dev); match->assigned_dev_id = assigned_dev->assigned_dev_id; + match->host_segnr = assigned_dev->segnr; match->host_busnr = assigned_dev->busnr; match->host_devfn = assigned_dev->devfn; match->flags = assigned_dev->flags; diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c index 65a5143..80fd3ad 100644 --- a/virt/kvm/iommu.c +++ b/virt/kvm/iommu.c @@ -106,7 +106,8 @@ int kvm_assign_device(struct kvm *kvm, r = iommu_attach_device(domain, &pdev->dev); if (r) { - printk(KERN_ERR "assign device %x:%x.%x failed", + printk(KERN_ERR "assign device %x:%x:%x.%x failed", + pci_domain_nr(pdev->bus), pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); @@ -127,7 +128,8 @@ int kvm_assign_device(struct kvm *kvm, goto out_unmap; } - printk(KERN_DEBUG "assign device: host bdf = %x:%x:%x\n", + printk(KERN_DEBUG "assign device %x:%x:%x.%x\n", + assigned_dev->host_segnr, assigned_dev->host_busnr, PCI_SLOT(assigned_dev->host_devfn), PCI_FUNC(assigned_dev->host_devfn)); @@ -154,7 +156,8 @@ int kvm_deassign_device(struct kvm *kvm, iommu_detach_device(domain, &pdev->dev); - printk(KERN_DEBUG "deassign device: host bdf = %x:%x:%x\n", + printk(KERN_DEBUG "deassign device %x:%x:%x.%x\n", + assigned_dev->host_segnr, assigned_dev->host_busnr, PCI_SLOT(assigned_dev->host_devfn), PCI_FUNC(assigned_dev->host_devfn));