From nobody Tue Apr 30 06:43:55 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 150583302133661.29299831387982; Tue, 19 Sep 2017 07:57:01 -0700 (PDT) Received: from localhost ([::1]:43381 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1duJxM-0001bA-ET for importer@patchew.org; Tue, 19 Sep 2017 10:57:00 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41875) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1duJtx-0007Oc-S0 for qemu-devel@nongnu.org; Tue, 19 Sep 2017 10:53:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1duJtv-00058d-1G for qemu-devel@nongnu.org; Tue, 19 Sep 2017 10:53:29 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57758) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1duJtu-00058V-Ol for qemu-devel@nongnu.org; Tue, 19 Sep 2017 10:53:26 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B87DBC07DEAE for ; Tue, 19 Sep 2017 14:53:25 +0000 (UTC) Received: from mmorsy.remote.csb (ovpn-117-44.ams2.redhat.com [10.36.117.44]) by smtp.corp.redhat.com (Postfix) with ESMTP id 685CC619C0; Tue, 19 Sep 2017 14:53:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com B87DBC07DEAE Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=mgamal@redhat.com From: Mohammed Gamal To: qemu-devel@nongnu.org Date: Tue, 19 Sep 2017 16:51:21 +0200 Message-Id: <1505832682-27325-2-git-send-email-mgamal@redhat.com> In-Reply-To: <1505832682-27325-1-git-send-email-mgamal@redhat.com> References: <1505832682-27325-1-git-send-email-mgamal@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Tue, 19 Sep 2017 14:53:25 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v5 1/2] x86_iommu: Move machine check to x86_iommu_realize() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thuth@redhat.com, ehabkost@redhat.com, mst@redhat.com, peterx@redhat.com, pbonzini@redhat.com, Mohammed Gamal Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Instead of having the same error checks in vtd_realize() and amdvi_realize(), move that over to the generic x86_iommu_realize(). Signed-off-by: Mohammed Gamal Reviewed-by: Eduardo Habkost --- hw/i386/amd_iommu.c | 13 ++----------- hw/i386/intel_iommu.c | 13 ++----------- hw/i386/x86-iommu.c | 13 +++++++++++++ 3 files changed, 17 insertions(+), 22 deletions(-) diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c index 334938a..f2e1868 100644 --- a/hw/i386/amd_iommu.c +++ b/hw/i386/amd_iommu.c @@ -1141,18 +1141,9 @@ static void amdvi_realize(DeviceState *dev, Error **= err) AMDVIState *s =3D AMD_IOMMU_DEVICE(dev); X86IOMMUState *x86_iommu =3D X86_IOMMU_DEVICE(dev); MachineState *ms =3D MACHINE(qdev_get_machine()); - MachineClass *mc =3D MACHINE_GET_CLASS(ms); - PCMachineState *pcms =3D - PC_MACHINE(object_dynamic_cast(OBJECT(ms), TYPE_PC_MACHINE)); - PCIBus *bus; - - if (!pcms) { - error_setg(err, "Machine-type '%s' not supported by amd-iommu", - mc->name); - return; - } + PCMachineState *pcms =3D PC_MACHINE(ms); + PCIBus *bus =3D pcms->bus; =20 - bus =3D pcms->bus; s->iotlb =3D g_hash_table_new_full(amdvi_uint64_hash, amdvi_uint64_equal, g_free, g_free); =20 diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 3a5bb0b..0138b3b 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -3027,20 +3027,11 @@ static bool vtd_decide_config(IntelIOMMUState *s, E= rror **errp) static void vtd_realize(DeviceState *dev, Error **errp) { MachineState *ms =3D MACHINE(qdev_get_machine()); - MachineClass *mc =3D MACHINE_GET_CLASS(ms); - PCMachineState *pcms =3D - PC_MACHINE(object_dynamic_cast(OBJECT(ms), TYPE_PC_MACHINE)); - PCIBus *bus; + PCMachineState *pcms =3D PC_MACHINE(ms); + PCIBus *bus =3D pcms->bus; IntelIOMMUState *s =3D INTEL_IOMMU_DEVICE(dev); X86IOMMUState *x86_iommu =3D X86_IOMMU_DEVICE(dev); =20 - if (!pcms) { - error_setg(errp, "Machine-type '%s' not supported by intel-iommu", - mc->name); - return; - } - - bus =3D pcms->bus; x86_iommu->type =3D TYPE_INTEL; =20 if (!vtd_decide_config(s, errp)) { diff --git a/hw/i386/x86-iommu.c b/hw/i386/x86-iommu.c index 293caf8..51de519 100644 --- a/hw/i386/x86-iommu.c +++ b/hw/i386/x86-iommu.c @@ -21,6 +21,8 @@ #include "hw/sysbus.h" #include "hw/boards.h" #include "hw/i386/x86-iommu.h" +#include "hw/i386/pc.h" +#include "qapi/error.h" #include "qemu/error-report.h" #include "trace.h" =20 @@ -80,7 +82,18 @@ static void x86_iommu_realize(DeviceState *dev, Error **= errp) { X86IOMMUState *x86_iommu =3D X86_IOMMU_DEVICE(dev); X86IOMMUClass *x86_class =3D X86_IOMMU_GET_CLASS(dev); + MachineState *ms =3D MACHINE(qdev_get_machine()); + MachineClass *mc =3D MACHINE_GET_CLASS(ms); + PCMachineState *pcms =3D + PC_MACHINE(object_dynamic_cast(OBJECT(ms), TYPE_PC_MACHINE)); QLIST_INIT(&x86_iommu->iec_notifiers); + + if (!pcms) { + error_setg(errp, "Machine-type '%s' not supported by IOMMU", + mc->name); + return; + } + if (x86_class->realize) { x86_class->realize(dev, errp); } --=20 1.8.3.1 From nobody Tue Apr 30 06:43:55 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1505832906469372.22471696095283; Tue, 19 Sep 2017 07:55:06 -0700 (PDT) Received: from localhost ([::1]:43370 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1duJvV-0008R6-Nb for importer@patchew.org; Tue, 19 Sep 2017 10:55:05 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41914) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1duJu2-0007UP-Tf for qemu-devel@nongnu.org; Tue, 19 Sep 2017 10:53:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1duJu2-0005BD-0Q for qemu-devel@nongnu.org; Tue, 19 Sep 2017 10:53:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57692) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1duJu1-0005B0-R3 for qemu-devel@nongnu.org; Tue, 19 Sep 2017 10:53:33 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D272B4E334 for ; Tue, 19 Sep 2017 14:53:32 +0000 (UTC) Received: from mmorsy.remote.csb (ovpn-117-44.ams2.redhat.com [10.36.117.44]) by smtp.corp.redhat.com (Postfix) with ESMTP id 41DE160241; Tue, 19 Sep 2017 14:53:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com D272B4E334 Authentication-Results: ext-mx09.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx09.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=mgamal@redhat.com From: Mohammed Gamal To: qemu-devel@nongnu.org Date: Tue, 19 Sep 2017 16:51:22 +0200 Message-Id: <1505832682-27325-3-git-send-email-mgamal@redhat.com> In-Reply-To: <1505832682-27325-1-git-send-email-mgamal@redhat.com> References: <1505832682-27325-1-git-send-email-mgamal@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Tue, 19 Sep 2017 14:53:32 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v5 2/2] x86_iommu: check if machine has PCI bus X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thuth@redhat.com, ehabkost@redhat.com, mst@redhat.com, peterx@redhat.com, pbonzini@redhat.com, Mohammed Gamal Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Starting qemu with qemu-system-x86_64 -S -M isapc -device {amd|intel}-iommu leads to a segfault. The code assume PCI bus is present and tries to access the bus structure without checking. Since Intel VT-d and AMDVI should only work with PCI, add a check for PCI bus and return error if not present. Signed-off-by: Mohammed Gamal Reviewed-by lines from previous patch versions. Reviewed-by: Eduardo Habkost --- hw/i386/x86-iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/i386/x86-iommu.c b/hw/i386/x86-iommu.c index 51de519..8a01a2d 100644 --- a/hw/i386/x86-iommu.c +++ b/hw/i386/x86-iommu.c @@ -88,7 +88,7 @@ static void x86_iommu_realize(DeviceState *dev, Error **e= rrp) PC_MACHINE(object_dynamic_cast(OBJECT(ms), TYPE_PC_MACHINE)); QLIST_INIT(&x86_iommu->iec_notifiers); =20 - if (!pcms) { + if (!pcms || !pcms->bus) { error_setg(errp, "Machine-type '%s' not supported by IOMMU", mc->name); return; --=20 1.8.3.1