From nobody Sun Feb 8 10:29:50 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=pass(p=none dis=none) header.from=redhat.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1549663973053669.1599025091125; Fri, 8 Feb 2019 14:12:53 -0800 (PST) Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 10D4E83F3E; Fri, 8 Feb 2019 22:12:50 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E2F6C1064249; Fri, 8 Feb 2019 22:12:48 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id A025B3F604; Fri, 8 Feb 2019 22:12:48 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id x18MCLgB008406 for ; Fri, 8 Feb 2019 17:12:21 -0500 Received: by smtp.corp.redhat.com (Postfix) id 600CF5C6A6; Fri, 8 Feb 2019 22:12:21 +0000 (UTC) Received: from worklaptop.redhat.com (ovpn-123-115.rdu2.redhat.com [10.10.123.115]) by smtp.corp.redhat.com (Postfix) with ESMTP id 029BF5C6A5; Fri, 8 Feb 2019 22:12:20 +0000 (UTC) From: Cole Robinson To: libvirt-list@redhat.com Date: Fri, 8 Feb 2019 17:11:55 -0500 Message-Id: <2c026b075520ff8a55696fc65fa92917889ad123.1549663396.git.crobinso@redhat.com> In-Reply-To: References: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-loop: libvir-list@redhat.com Subject: [libvirt] [PATCH v3 04/17] qemu: Support disk model=virtio-{non-}transitional X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Fri, 08 Feb 2019 22:12:51 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Add new model values for virtio transitional devices. When combined with bus=3D'virtio': * "virtio-transitional" maps to qemu "virtio-blk-pci-transitional" * "virtio-non-transitional" maps to qemu "virtio-blk-pci-non-transitional" Signed-off-by: Cole Robinson Reviewed-by: Andrea Bolognani --- src/qemu/qemu_command.c | 75 ++++++++++++++++++- src/qemu/qemu_domain_address.c | 14 +++- .../virtio-non-transitional.x86_64-3.1.0.args | 4 +- ...virtio-non-transitional.x86_64-latest.args | 4 +- .../virtio-transitional.x86_64-3.1.0.args | 7 +- .../virtio-transitional.x86_64-latest.args | 7 +- .../virtio-transitional.xml | 10 ++- 7 files changed, 106 insertions(+), 15 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index a26f6291ac..9dda5619fd 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -423,13 +423,14 @@ qemuBuildDeviceAddressStr(virBufferPtr buf, static int qemuBuildVirtioDevStr(virBufferPtr buf, const char *baseName, - virQEMUCapsPtr qemuCaps ATTRIBUTE_UNUSED, + virQEMUCapsPtr qemuCaps, virDomainDeviceType devtype, void *devdata) { const char *implName =3D NULL; virDomainDeviceDef device =3D { .type =3D devtype }; virDomainDeviceInfoPtr info; + bool has_tmodel, has_ntmodel; =20 virDomainDeviceSetData(&device, devdata); info =3D virDomainDeviceGetInfo(&device); @@ -471,6 +472,78 @@ qemuBuildVirtioDevStr(virBufferPtr buf, =20 virBufferAsprintf(buf, "%s-%s", baseName, implName); =20 + switch (devtype) { + case VIR_DOMAIN_DEVICE_DISK: + has_tmodel =3D device.data.disk->model =3D=3D VIR_DOMAIN_DISK_= MODEL_VIRTIO_TRANSITIONAL; + has_ntmodel =3D device.data.disk->model =3D=3D VIR_DOMAIN_DISK= _MODEL_VIRTIO_NON_TRANSITIONAL; + break; + + case VIR_DOMAIN_DEVICE_NET: + case VIR_DOMAIN_DEVICE_LEASE: + case VIR_DOMAIN_DEVICE_FS: + case VIR_DOMAIN_DEVICE_INPUT: + case VIR_DOMAIN_DEVICE_SOUND: + case VIR_DOMAIN_DEVICE_VIDEO: + case VIR_DOMAIN_DEVICE_HOSTDEV: + case VIR_DOMAIN_DEVICE_WATCHDOG: + case VIR_DOMAIN_DEVICE_CONTROLLER: + case VIR_DOMAIN_DEVICE_GRAPHICS: + case VIR_DOMAIN_DEVICE_HUB: + case VIR_DOMAIN_DEVICE_REDIRDEV: + case VIR_DOMAIN_DEVICE_NONE: + case VIR_DOMAIN_DEVICE_SMARTCARD: + case VIR_DOMAIN_DEVICE_CHR: + case VIR_DOMAIN_DEVICE_MEMBALLOON: + case VIR_DOMAIN_DEVICE_NVRAM: + case VIR_DOMAIN_DEVICE_SHMEM: + case VIR_DOMAIN_DEVICE_TPM: + case VIR_DOMAIN_DEVICE_PANIC: + case VIR_DOMAIN_DEVICE_RNG: + case VIR_DOMAIN_DEVICE_MEMORY: + case VIR_DOMAIN_DEVICE_IOMMU: + case VIR_DOMAIN_DEVICE_VSOCK: + case VIR_DOMAIN_DEVICE_LAST: + default: + return 0; + } + + if (info->type !=3D VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI && + (has_tmodel || has_ntmodel)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("virtio (non-)transitional models are not " + "supported for address type=3D%s"), + virDomainDeviceAddressTypeToString(info->type)); + return -1; + } + + if (has_tmodel) { + if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_NON_TRANSITIONAL= )) { + virBufferAddLit(buf, "-transitional"); + } else if (virQEMUCapsGet(qemuCaps, + QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY)) { + virBufferAddLit(buf, ",disable-legacy=3Doff,disable-modern=3Do= ff"); + } + /* No error if -transitional is not supported: our address + * allocation will force the device into plain PCI bus, which + * is functionally identical to standard 'virtio-XXX' behavior + */ + } else if (has_ntmodel) { + if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_NON_TRANSITIONAL= )) { + virBufferAddLit(buf, "-non-transitional"); + } else if (virQEMUCapsGet(qemuCaps, + QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY)) { + /* Even if the QEMU binary doesn't support the non-transitional + * device, we can still make it work by manually disabling leg= acy + * VirtIO and enabling modern VirtIO */ + virBufferAddLit(buf, ",disable-legacy=3Don,disable-modern=3Dof= f"); + } else { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("virtio non-transitional model not supported " + "for this qemu")); + return -1; + } + } + return 0; } =20 diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c index 32fdd59566..40b8efa0b5 100644 --- a/src/qemu/qemu_domain_address.c +++ b/src/qemu/qemu_domain_address.c @@ -720,7 +720,19 @@ qemuDomainDeviceCalculatePCIConnectFlags(virDomainDevi= ceDefPtr dev, case VIR_DOMAIN_DEVICE_DISK: switch ((virDomainDiskBus) dev->data.disk->bus) { case VIR_DOMAIN_DISK_BUS_VIRTIO: - return virtioFlags; /* only virtio disks use PCI */ + /* only virtio disks use PCI */ + switch ((virDomainDiskModel) dev->data.disk->model) { + case VIR_DOMAIN_DISK_MODEL_VIRTIO_TRANSITIONAL: + /* Transitional devices only work in conventional PCI slot= s */ + return pciFlags; + case VIR_DOMAIN_DISK_MODEL_VIRTIO: + case VIR_DOMAIN_DISK_MODEL_VIRTIO_NON_TRANSITIONAL: + case VIR_DOMAIN_DISK_MODEL_DEFAULT: + return virtioFlags; + case VIR_DOMAIN_DISK_MODEL_LAST: + break; + } + return 0; =20 case VIR_DOMAIN_DISK_BUS_IDE: case VIR_DOMAIN_DISK_BUS_FDC: diff --git a/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-3.1.0.ar= gs b/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-3.1.0.args index 9e11e900da..70446f16f2 100644 --- a/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-3.1.0.args +++ b/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-3.1.0.args @@ -27,8 +27,8 @@ file=3D/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ addr=3D0x1 \ -device pcie-root-port,port=3D0x9,chassis=3D2,id=3Dpci.2,bus=3Dpcie.0,addr= =3D0x1.0x1 \ -drive file=3D/dev/HostVG/QEMUGuest1,format=3Draw,if=3Dnone,id=3Ddrive-vir= tio-disk0 \ --device virtio-blk-pci,scsi=3Doff,bus=3Dpci.1,addr=3D0x0,drive=3Ddrive-vir= tio-disk0,\ -id=3Dvirtio-disk0,bootindex=3D1 \ +-device virtio-blk-pci,disable-legacy=3Don,disable-modern=3Doff,scsi=3Doff= ,bus=3Dpci.1,\ +addr=3D0x0,drive=3Ddrive-virtio-disk0,id=3Dvirtio-disk0,bootindex=3D1 \ -sandbox on,obsolete=3Ddeny,elevateprivileges=3Ddeny,spawn=3Ddeny,\ resourcecontrol=3Ddeny \ -msg timestamp=3Don diff --git a/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.a= rgs b/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args index 070b4b8334..37078765bc 100644 --- a/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args +++ b/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args @@ -27,8 +27,8 @@ file=3D/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ addr=3D0x1 \ -device pcie-root-port,port=3D0x9,chassis=3D2,id=3Dpci.2,bus=3Dpcie.0,addr= =3D0x1.0x1 \ -drive file=3D/dev/HostVG/QEMUGuest1,format=3Draw,if=3Dnone,id=3Ddrive-vir= tio-disk0 \ --device virtio-blk-pci,scsi=3Doff,bus=3Dpci.1,addr=3D0x0,drive=3Ddrive-vir= tio-disk0,\ -id=3Dvirtio-disk0,bootindex=3D1 \ +-device virtio-blk-pci-non-transitional,scsi=3Doff,bus=3Dpci.1,addr=3D0x0,\ +drive=3Ddrive-virtio-disk0,id=3Dvirtio-disk0,bootindex=3D1 \ -sandbox on,obsolete=3Ddeny,elevateprivileges=3Ddeny,spawn=3Ddeny,\ resourcecontrol=3Ddeny \ -msg timestamp=3Don diff --git a/tests/qemuxml2argvdata/virtio-transitional.x86_64-3.1.0.args b= /tests/qemuxml2argvdata/virtio-transitional.x86_64-3.1.0.args index 9e11e900da..e254014471 100644 --- a/tests/qemuxml2argvdata/virtio-transitional.x86_64-3.1.0.args +++ b/tests/qemuxml2argvdata/virtio-transitional.x86_64-3.1.0.args @@ -25,10 +25,11 @@ file=3D/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ -boot strict=3Don \ -device pcie-root-port,port=3D0x8,chassis=3D1,id=3Dpci.1,bus=3Dpcie.0,mult= ifunction=3Don,\ addr=3D0x1 \ --device pcie-root-port,port=3D0x9,chassis=3D2,id=3Dpci.2,bus=3Dpcie.0,addr= =3D0x1.0x1 \ +-device pcie-pci-bridge,id=3Dpci.2,bus=3Dpci.1,addr=3D0x0 \ +-device pcie-root-port,port=3D0x9,chassis=3D3,id=3Dpci.3,bus=3Dpcie.0,addr= =3D0x1.0x1 \ -drive file=3D/dev/HostVG/QEMUGuest1,format=3Draw,if=3Dnone,id=3Ddrive-vir= tio-disk0 \ --device virtio-blk-pci,scsi=3Doff,bus=3Dpci.1,addr=3D0x0,drive=3Ddrive-vir= tio-disk0,\ -id=3Dvirtio-disk0,bootindex=3D1 \ +-device virtio-blk-pci,disable-legacy=3Doff,disable-modern=3Doff,scsi=3Dof= f,\ +bus=3Dpci.2,addr=3D0x1,drive=3Ddrive-virtio-disk0,id=3Dvirtio-disk0,bootin= dex=3D1 \ -sandbox on,obsolete=3Ddeny,elevateprivileges=3Ddeny,spawn=3Ddeny,\ resourcecontrol=3Ddeny \ -msg timestamp=3Don diff --git a/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args = b/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args index 070b4b8334..e78223eac8 100644 --- a/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args +++ b/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args @@ -25,10 +25,11 @@ file=3D/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ -boot strict=3Don \ -device pcie-root-port,port=3D0x8,chassis=3D1,id=3Dpci.1,bus=3Dpcie.0,mult= ifunction=3Don,\ addr=3D0x1 \ --device pcie-root-port,port=3D0x9,chassis=3D2,id=3Dpci.2,bus=3Dpcie.0,addr= =3D0x1.0x1 \ +-device pcie-pci-bridge,id=3Dpci.2,bus=3Dpci.1,addr=3D0x0 \ +-device pcie-root-port,port=3D0x9,chassis=3D3,id=3Dpci.3,bus=3Dpcie.0,addr= =3D0x1.0x1 \ -drive file=3D/dev/HostVG/QEMUGuest1,format=3Draw,if=3Dnone,id=3Ddrive-vir= tio-disk0 \ --device virtio-blk-pci,scsi=3Doff,bus=3Dpci.1,addr=3D0x0,drive=3Ddrive-vir= tio-disk0,\ -id=3Dvirtio-disk0,bootindex=3D1 \ +-device virtio-blk-pci-transitional,scsi=3Doff,bus=3Dpci.2,addr=3D0x1,\ +drive=3Ddrive-virtio-disk0,id=3Dvirtio-disk0,bootindex=3D1 \ -sandbox on,obsolete=3Ddeny,elevateprivileges=3Ddeny,spawn=3Ddeny,\ resourcecontrol=3Ddeny \ -msg timestamp=3Don diff --git a/tests/qemuxml2xmloutdata/virtio-transitional.xml b/tests/qemux= ml2xmloutdata/virtio-transitional.xml index 1d28af9abb..c19e133bb3 100644 --- a/tests/qemuxml2xmloutdata/virtio-transitional.xml +++ b/tests/qemuxml2xmloutdata/virtio-transitional.xml @@ -18,7 +18,7 @@ -
+
@@ -30,9 +30,13 @@
- + + +
+ + - +
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