From patchwork Tue Sep 8 14:10:00 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Konrad Rzeszutek Wilk X-Patchwork-Id: 515415 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id AC7BE14012C for ; Wed, 9 Sep 2015 00:13:37 +1000 (AEST) Received: from localhost ([::1]:34629 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZZJeR-0000Ga-Db for incoming@patchwork.ozlabs.org; Tue, 08 Sep 2015 10:13:35 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48260) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZZJbF-0005aT-J6 for qemu-devel@nongnu.org; Tue, 08 Sep 2015 10:10:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZZJbA-00014w-PV for qemu-devel@nongnu.org; Tue, 08 Sep 2015 10:10:17 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:49148) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZZJbA-00014e-EV for qemu-devel@nongnu.org; Tue, 08 Sep 2015 10:10:12 -0400 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id t88EA6mv024335 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 8 Sep 2015 14:10:06 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id t88EA6b5000409 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Tue, 8 Sep 2015 14:10:06 GMT Received: from abhmp0011.oracle.com (abhmp0011.oracle.com [141.146.116.17]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id t88EA6ad022427; Tue, 8 Sep 2015 14:10:06 GMT Received: from l.oracle.com (/10.137.176.158) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 08 Sep 2015 07:10:06 -0700 Received: by l.oracle.com (Postfix, from userid 1000) id 666D06A4B9D; Tue, 8 Sep 2015 10:10:04 -0400 (EDT) From: Konrad Rzeszutek Wilk To: stefano.stabellini@eu.citrix.com, xen-devel@lists.xenproject.org, qemu-devel@nongnu.org Date: Tue, 8 Sep 2015 10:10:00 -0400 Message-Id: <1441721402-12464-9-git-send-email-konrad.wilk@oracle.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1441721402-12464-1-git-send-email-konrad.wilk@oracle.com> References: <1441721402-12464-1-git-send-email-konrad.wilk@oracle.com> X-Source-IP: userv0022.oracle.com [156.151.31.74] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 156.151.31.81 Cc: JBeulich@suse.com, Konrad Rzeszutek Wilk Subject: [Qemu-devel] [PATCH v2 08/10] xen/pt: Move bulk of xen_pt_unregister_device in its own routine. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org This way we can call it if we fail during init. This code movement introduces no changes. Acked-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk --- hw/xen/xen_pt.c | 115 +++++++++++++++++++++++++++++--------------------------- 1 file changed, 60 insertions(+), 55 deletions(-) diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c index c80b755..5a49a86 100644 --- a/hw/xen/xen_pt.c +++ b/hw/xen/xen_pt.c @@ -683,6 +683,65 @@ static const MemoryListener xen_pt_io_listener = { .priority = 10, }; +/* destroy. */ +static void xen_pt_destroy(PCIDevice *d) { + + XenPCIPassthroughState *s = XEN_PT_DEVICE(d); + uint8_t machine_irq = s->machine_irq; + uint8_t intx; + int rc; + + if (machine_irq && !xen_host_pci_device_closed(&s->real_device)) { + intx = xen_pt_pci_intx(s); + rc = xc_domain_unbind_pt_irq(xen_xc, xen_domid, machine_irq, + PT_IRQ_TYPE_PCI, + pci_bus_num(d->bus), + PCI_SLOT(s->dev.devfn), + intx, + 0 /* isa_irq */); + if (rc < 0) { + XEN_PT_ERR(d, "unbinding of interrupt INT%c failed." + " (machine irq: %i, err: %d)" + " But bravely continuing on..\n", + 'a' + intx, machine_irq, errno); + } + } + + /* N.B. xen_pt_config_delete takes care of freeing them. */ + if (s->msi) { + xen_pt_msi_disable(s); + } + if (s->msix) { + xen_pt_msix_disable(s); + } + + if (machine_irq) { + xen_pt_mapped_machine_irq[machine_irq]--; + + if (xen_pt_mapped_machine_irq[machine_irq] == 0) { + rc = xc_physdev_unmap_pirq(xen_xc, xen_domid, machine_irq); + + if (rc < 0) { + XEN_PT_ERR(d, "unmapping of interrupt %i failed. (err: %d)" + " But bravely continuing on..\n", + machine_irq, errno); + } + } + s->machine_irq = 0; + } + + /* delete all emulated config registers */ + xen_pt_config_delete(s); + + if (s->listener_set) { + memory_listener_unregister(&s->memory_listener); + memory_listener_unregister(&s->io_listener); + s->listener_set = false; + } + if (!xen_host_pci_device_closed(&s->real_device)) { + xen_host_pci_device_put(&s->real_device); + } +} /* init */ static int xen_pt_initfn(PCIDevice *d) @@ -817,61 +876,7 @@ out: static void xen_pt_unregister_device(PCIDevice *d) { - XenPCIPassthroughState *s = XEN_PT_DEVICE(d); - uint8_t machine_irq = s->machine_irq; - uint8_t intx; - int rc; - - if (machine_irq && !xen_host_pci_device_closed(&s->real_device)) { - intx = xen_pt_pci_intx(s); - rc = xc_domain_unbind_pt_irq(xen_xc, xen_domid, machine_irq, - PT_IRQ_TYPE_PCI, - pci_bus_num(d->bus), - PCI_SLOT(s->dev.devfn), - intx, - 0 /* isa_irq */); - if (rc < 0) { - XEN_PT_ERR(d, "unbinding of interrupt INT%c failed." - " (machine irq: %i, err: %d)" - " But bravely continuing on..\n", - 'a' + intx, machine_irq, errno); - } - } - - /* N.B. xen_pt_config_delete takes care of freeing them. */ - if (s->msi) { - xen_pt_msi_disable(s); - } - if (s->msix) { - xen_pt_msix_disable(s); - } - - if (machine_irq) { - xen_pt_mapped_machine_irq[machine_irq]--; - - if (xen_pt_mapped_machine_irq[machine_irq] == 0) { - rc = xc_physdev_unmap_pirq(xen_xc, xen_domid, machine_irq); - - if (rc < 0) { - XEN_PT_ERR(d, "unmapping of interrupt %i failed. (err: %d)" - " But bravely continuing on..\n", - machine_irq, errno); - } - } - s->machine_irq = 0; - } - - /* delete all emulated config registers */ - xen_pt_config_delete(s); - - if (s->listener_set) { - memory_listener_unregister(&s->memory_listener); - memory_listener_unregister(&s->io_listener); - s->listener_set = false; - } - if (!xen_host_pci_device_closed(&s->real_device)) { - xen_host_pci_device_put(&s->real_device); - } + xen_pt_destroy(d); } static Property xen_pci_passthrough_properties[] = {