This patch adds two capabilities flags to deal with various aspects of supporting SG_IO commands on virtio-blk-pci devices: QEMU_CAPS_VIRTIO_BLK_SCSI set if -device virtio-blk-pci accepts the scsi="on|off" option When present, this is on by default, but can be set to off to disable SG_IO functions. QEMU_CAPS_VIRTIO_BLK_SG_IO set if SG_IO commands are supported in the virtio-blk-pci driver (present since qemu 0.11 according to a qemu developer, if I understood correctly) --- src/qemu/qemu_capabilities.c | 8 ++++++++ src/qemu/qemu_capabilities.h | 3 +++ 2 files changed, 11 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 43c7578..6842cfe 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -144,6 +144,9 @@ VIR_ENUM_IMPL(qemuCaps, QEMU_CAPS_LAST, "ich9-ahci", "no-acpi", "fsdev-readonly", + + "virtio-blk-pci.scsi", + "blk-sg-io", ); struct qemu_feature_flags { @@ -1149,6 +1152,9 @@ qemuCapsComputeCmdFlags(const char *help, if (version >= 10000) qemuCapsSet(flags, QEMU_CAPS_0_10); + if (version >= 11000) + qemuCapsSet(flags, QEMU_CAPS_VIRTIO_BLK_SG_IO); + /* While JSON mode was available in 0.12.0, it was too * incomplete to contemplate using. The 0.13.0 release * is good enough to use, even though it lacks one or @@ -1386,6 +1392,8 @@ qemuCapsParseDeviceStr(const char *str, virBitmapPtr flags) qemuCapsSet(flags, QEMU_CAPS_VIRTIO_BLK_EVENT_IDX); if (strstr(str, "virtio-net-pci.event_idx")) qemuCapsSet(flags, QEMU_CAPS_VIRTIO_NET_EVENT_IDX); + if (strstr(str, "virtio-blk-pci.scsi")) + qemuCapsSet(flags, QEMU_CAPS_VIRTIO_BLK_SCSI); return 0; } diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index c759baf..d47177c 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -118,6 +118,9 @@ enum qemuCapsFlags { QEMU_CAPS_NO_ACPI = 78, /* -no-acpi */ QEMU_CAPS_FSDEV_READONLY =79, /* -fsdev readonly supported */ + QEMU_CAPS_VIRTIO_BLK_SCSI = 80, /* virtio-blk-pci.scsi */ + QEMU_CAPS_VIRTIO_BLK_SG_IO = 81, /* support for SG_IO commands, reportedly added in 0.11 */ + QEMU_CAPS_LAST, /* this must always be the last item */ }; -- 1.7.7.4

Summary: two nits, one in the docs and one at the end of this email. [Osier, I'm CCing you because there is some food for thought for SCSI]. On 01/05/2012 05:17 AM, Laine Stump wrote: What about "are forwarded to the disk"? This is also true in the SCSI case (for SCSI, "block" will emulate commands rather than fail them; but for "lun" the behavior is identical). Perhaps add a note that QEMU may fail to start? Again, this is not the case for virtio but it will be for "scsi". I wonder if you should extend this check to VIR_DOMAIN_DISK_DEVICE_CDROM as well. Suboptimal, because a type='lun' disk could well be a CD. :/ But short of supporting bootindex directly in the <disk> and <network> items, we cannot do much about it though. Side note: this fails if you're trying to hot-plug a SCSI CD drive. Probably this error condition in qemuDomainChangeEjectableMedia: for (i = 0 ; i < vm->def->ndisks ; i++) { if (vm->def->disks[i]->bus == disk->bus && STREQ(vm->def->disks[i]->dst, disk->dst)) { origdisk = vm->def->disks[i]; break; } } if (!origdisk) { qemuReportError(VIR_ERR_INTERNAL_ERROR, _("No device with bus '%s' and target '%s'"), virDomainDiskBusTypeToString(disk->bus), disk->dst); return -1; } should instead fall back to device hot-plug for VIR_DOMAIN_DISK_BUS_SCSI. I think that we should fail for device='lun' and format != 'raw'. Paolo

On 01/05/2012 08:59 AM, Laine Stump wrote: Yes, that would be reasonable. This function is only called when doing an internal snapshot, which requires that all disk devices from the guest perspective are in qcow2 format on the host. But I agree that a device='lun' will never be in qcow2 format - if you plan on using raw SG_IO, then you plan on using the disk as-is (raw) and not wrapping it through another layer of qemu emulation. In short, we are safe requiring that an internal snapshot cannot be done if any device='lun' are present. -- Eric Blake eblake(a)redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org

On 01/05/2012 11:10 AM, Paolo Bonzini wrote: It sounds like you're saying that when device='disk' & type='block' and dev='[some physical SCSI device], sg_io commands will be emulated for that device. That doesn't make sense, so you must be saying something else.

In the past, generic SCSI commands issued from a guest to a virtio disk were always passed through to the underlying disk by qemu, and the kernel would also pass them on. As a result of CVE-2011-4127 (see: http://seclists.org/oss-sec/2011/q4/536), qemu now honors its scsi=on|off device option for virtio-blk-pci (which enables/disables passthrough of generic SCSI commands), and the kernel will only allow the commands for physical devices (not for partitions or logical volumes). The default behavior of qemu is still to allow sending generic SCSI commands to physical disks that are presented to a guest as virtio-blk-pci devices, but libvirt prefers to disable those commands in the standard virtio block devices, enabling it only when specifically requested (hopefully indicating that the requester understands what they're asking for). For this purpose, a new libvirt disk device type (device='lun') has been created. device='lun' is identical to the default device='disk', except that: 1) It is only allowed if bus='virtio', type='block', and the qemu version is "new enough" to support it ("new enough" == qemu 0.11 or better), otherwise the domain will fail to start and a CONFIG_UNSUPPORTED error will be logged). 2) The option "scsi=on" will be added to the -device arg to allow SG_IO commands (if device !='lun', "scsi=off" will be added to the -device arg so that SG_IO commands are specifically forbidden). Guests which continue to use disk device='disk' (the default) will no longer be able to use SG_IO commands on the disk; those that have their disk device changed to device='lun' will still be able to use SG_IO commands. *docs/formatdomain.html.in - document the new device attribute value. *docs/schemas/domaincommon.rng - allow it in the RNG *tests/* - update the args of several existing tests to add scsi=off, and add one new test that will test scsi=on. *src/conf/domain_conf.c - update domain XML parser and formatter *src/qemu/qemu_(command|driver|hotplug).c - treat VIR_DOMAIN_DISK_DEVICE_LUN *almost* identically to VIR_DOMAIN_DISK_DEVICE_DISK, except as indicated above. Note that no support for this new device value was added to any hypervisor drivers other than qemu, because it's unclear what it might mean (if anything) to those drivers. --- v3 changes: 1) Add note to docs that the SCSI commands are not only accepted from the guest, but are passed through to the physical device (I didn't add anything about the SCSI commands being emulated because I still don't understand that situation perfectly, and don't want to add misleading docs about existing behavior. 2) Change the logic of qemuDomainSnapshotIsAllowed() to always return false if a device='lun' disk is encountered, regardless of the format. In reality, lun disks are always 'raw', so it would return false anyway, but this makes it clearer. I'm pretty sure all the other comments in reviews weren't directly related to the problem being addressed in this patch. Here is a diff of what I squashed in between v2 and v3: xdiff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in xindex dcdf91f..42e23a1 100644 x--- a/docs/formatdomain.html.in x+++ b/docs/formatdomain.html.in x@@ -1007,6 +1007,7 @@ valid when type is "block" and the target element's "bus" attribute is "virtio", and behaves identically to "disk", except that generic SCSI commands from the guest are accepted + and passed through to the physical device - also note that device='lun' will only be recognized for actual raw devices, never for individual partitions or LVM partitions (in those cases, the kernel will reject the generic xdiff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c xindex 3c55216..7be045f 100644 x--- a/src/qemu/qemu_driver.c x+++ b/src/qemu/qemu_driver.c x@@ -9609,10 +9609,9 @@ static int qemuDomainSnapshotIsAllowed(virDomainObjPtr vm) * that succeed as well */ for (i = 0; i < vm->def->ndisks; i++) { - if ((vm->def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_DISK || - vm->def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_LUN) && - (!vm->def->disks[i]->driverType || - STRNEQ(vm->def->disks[i]->driverType, "qcow2"))) { + if ((vm->def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_LUN) || + (vm->def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_DISK && + STRNEQ_NULLABLE(vm->def->disks[i]->driverType, "qcow2"))) { qemuReportError(VIR_ERR_OPERATION_INVALID, _("Disk '%s' does not support snapshotting"), vm->def->disks[i]->src); docs/formatdomain.html.in | 13 ++++- docs/schemas/domaincommon.rng | 1 + src/conf/domain_conf.c | 6 ++- src/conf/domain_conf.h | 1 + src/qemu/qemu_command.c | 35 ++++++++++++- src/qemu/qemu_driver.c | 8 ++- src/qemu/qemu_hotplug.c | 4 +- tests/qemuhelptest.c | 24 ++++++--- .../qemuxml2argv-boot-complex-bootindex.args | 4 +- .../qemuxml2argv-boot-complex.args | 4 +- .../qemuxml2argvdata/qemuxml2argv-boot-order.args | 2 +- .../qemuxml2argv-disk-ioeventfd.args | 2 +- .../qemuxml2argvdata/qemuxml2argv-disk-order.args | 4 +- .../qemuxml2argv-encrypted-disk.args | 2 +- tests/qemuxml2argvdata/qemuxml2argv-event_idx.args | 2 +- .../qemuxml2argvdata/qemuxml2argv-virtio-lun.args | 11 ++++ tests/qemuxml2argvdata/qemuxml2argv-virtio-lun.xml | 57 ++++++++++++++++++++ tests/qemuxml2argvtest.c | 22 ++++++-- tests/qemuxml2xmltest.c | 1 + 19 files changed, 171 insertions(+), 32 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-virtio-lun.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-virtio-lun.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 18b7e22..42e23a1 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1001,8 +1001,17 @@ "block", "dir", or "network" and refers to the underlying source for the disk. The optional <code>device</code> attribute indicates how the disk is to be exposed - to the guest OS. Possible values for this attribute are "floppy", "disk" - and "cdrom", defaulting to "disk". The + to the guest OS. Possible values for this attribute are + "floppy", "disk", "cdrom", and "lun", defaulting to + "disk". "lun" (<span class="since">since 0.9.10</span>) is only + valid when type is "block" and the target element's "bus" + attribute is "virtio", and behaves identically to "disk", + except that generic SCSI commands from the guest are accepted + and passed through to the physical device + - also note that device='lun' will only be recognized for + actual raw devices, never for individual partitions or LVM + partitions (in those cases, the kernel will reject the generic + SCSI commands, making it identical to device='disk'). The optional <code>snapshot</code> attribute indicates the default behavior of the disk during disk snapshots: "internal" requires a file format such as qcow2 that can store both the diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index 7a8f7f4..2f8bec5 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -794,6 +794,7 @@ <value>floppy</value> <value>disk</value> <value>cdrom</value> + <value>lun</value> </choice> </attribute> </optional> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 21113c6..a06942b 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -157,7 +157,8 @@ VIR_ENUM_IMPL(virDomainDisk, VIR_DOMAIN_DISK_TYPE_LAST, VIR_ENUM_IMPL(virDomainDiskDevice, VIR_DOMAIN_DISK_DEVICE_LAST, "disk", "cdrom", - "floppy") + "floppy", + "lun") VIR_ENUM_IMPL(virDomainDiskBus, VIR_DOMAIN_DISK_BUS_LAST, "ide", @@ -3093,7 +3094,8 @@ virDomainDiskDefParseXML(virCapsPtr caps, if (def->device == VIR_DOMAIN_DISK_DEVICE_CDROM) def->readonly = 1; - if (def->device == VIR_DOMAIN_DISK_DEVICE_DISK && + if ((def->device == VIR_DOMAIN_DISK_DEVICE_DISK || + def->device == VIR_DOMAIN_DISK_DEVICE_LUN) && !STRPREFIX((const char *)target, "hd") && !STRPREFIX((const char *)target, "sd") && !STRPREFIX((const char *)target, "vd") && diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index cd882bb..ec1f013 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -230,6 +230,7 @@ enum virDomainDiskDevice { VIR_DOMAIN_DISK_DEVICE_DISK, VIR_DOMAIN_DISK_DEVICE_CDROM, VIR_DOMAIN_DISK_DEVICE_FLOPPY, + VIR_DOMAIN_DISK_DEVICE_LUN, VIR_DOMAIN_DISK_DEVICE_LAST }; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index ea1b763..21d8877 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1876,7 +1876,8 @@ qemuBuildDriveStr(virConnectPtr conn ATTRIBUTE_UNUSED, } if (bootable && qemuCapsGet(qemuCaps, QEMU_CAPS_DRIVE_BOOT) && - disk->device == VIR_DOMAIN_DISK_DEVICE_DISK && + (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK || + disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) && disk->bus != VIR_DOMAIN_DISK_BUS_IDE) virBufferAddLit(&opt, ",boot=on"); if (disk->readonly && @@ -2022,6 +2023,29 @@ qemuBuildDriveDevStr(virDomainDiskDefPtr disk, goto error; } + if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) { + /* make sure that both the bus and the qemu binary support + * type='lun' (SG_IO). + */ + if (disk->bus != VIR_DOMAIN_DISK_BUS_VIRTIO) { + qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("disk device='lun' is not supported for bus='%s'"), + bus); + goto error; + } + if (disk->type != VIR_DOMAIN_DISK_TYPE_BLOCK) { + qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("disk device='lun' is not supported for type='%s'"), + virDomainDiskTypeToString(disk->type)); + goto error; + } + if (!qemuCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_SG_IO)) { + qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("disk device='lun' is not supported by this QEMU")); + goto error; + } + } + switch (disk->bus) { case VIR_DOMAIN_DISK_BUS_IDE: virBufferAddLit(&opt, "ide-drive"); @@ -2050,6 +2074,14 @@ qemuBuildDriveDevStr(virDomainDiskDefPtr disk, virBufferAsprintf(&opt, ",event_idx=%s", virDomainVirtioEventIdxTypeToString(disk->event_idx)); } + if (qemuCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_SCSI)) { + /* if sg_io is true but the scsi option isn't supported, + * that means it's just always on in this version of qemu. + */ + virBufferAsprintf(&opt, ",scsi=%s", + (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) + ? "on" : "off"); + } if (qemuBuildDeviceAddressStr(&opt, &disk->info, qemuCaps) < 0) goto error; break; @@ -4241,6 +4273,7 @@ qemuBuildCommandLine(virConnectPtr conn, bootFloppy = 0; break; case VIR_DOMAIN_DISK_DEVICE_DISK: + case VIR_DOMAIN_DISK_DEVICE_LUN: bootindex = bootDisk; bootDisk = 0; break; diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 82bab67..7be045f 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -4987,6 +4987,7 @@ qemuDomainAttachDeviceDiskLive(virConnectPtr conn, ret = qemuDomainChangeEjectableMedia(driver, vm, disk, false); break; case VIR_DOMAIN_DISK_DEVICE_DISK: + case VIR_DOMAIN_DISK_DEVICE_LUN: if (disk->bus == VIR_DOMAIN_DISK_BUS_USB) ret = qemuDomainAttachUsbMassstorageDevice(conn, driver, vm, disk); @@ -5109,6 +5110,7 @@ qemuDomainDetachDeviceDiskLive(struct qemud_driver *driver, switch (disk->device) { case VIR_DOMAIN_DISK_DEVICE_DISK: + case VIR_DOMAIN_DISK_DEVICE_LUN: if (disk->bus == VIR_DOMAIN_DISK_BUS_VIRTIO) ret = qemuDomainDetachPciDiskDevice(driver, vm, dev); else if (disk->bus == VIR_DOMAIN_DISK_BUS_SCSI) @@ -9607,9 +9609,9 @@ static int qemuDomainSnapshotIsAllowed(virDomainObjPtr vm) * that succeed as well */ for (i = 0; i < vm->def->ndisks; i++) { - if (vm->def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_DISK && - (!vm->def->disks[i]->driverType || - STRNEQ(vm->def->disks[i]->driverType, "qcow2"))) { + if ((vm->def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_LUN) || + (vm->def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_DISK && + STRNEQ_NULLABLE(vm->def->disks[i]->driverType, "qcow2"))) { qemuReportError(VIR_ERR_OPERATION_INVALID, _("Disk '%s' does not support snapshotting"), vm->def->disks[i]->src); diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index f3597a1..c1ccfa9 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -162,8 +162,10 @@ qemuDomainCheckEjectableMedia(struct qemud_driver *driver, virDomainDiskDefPtr disk = vm->def->disks[i]; struct qemuDomainDiskInfo info; - if (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK) + if (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK || + disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) { continue; + } memset(&info, 0, sizeof(info)); diff --git a/tests/qemuhelptest.c b/tests/qemuhelptest.c index 60155e7..1ef0d9b 100644 --- a/tests/qemuhelptest.c +++ b/tests/qemuhelptest.c @@ -329,7 +329,8 @@ mymain(void) QEMU_CAPS_DRIVE_AIO, QEMU_CAPS_NO_SHUTDOWN, QEMU_CAPS_PCI_ROMBAR, - QEMU_CAPS_NO_ACPI); + QEMU_CAPS_NO_ACPI, + QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("qemu-kvm-0.12.1.2-rhel60", 12001, 1, 0, QEMU_CAPS_VNC_COLON, QEMU_CAPS_NO_REBOOT, @@ -376,7 +377,8 @@ mymain(void) QEMU_CAPS_USB_HUB, QEMU_CAPS_NO_SHUTDOWN, QEMU_CAPS_PCI_ROMBAR, - QEMU_CAPS_NO_ACPI); + QEMU_CAPS_NO_ACPI, + QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("qemu-kvm-0.12.3", 12003, 1, 0, QEMU_CAPS_VNC_COLON, QEMU_CAPS_NO_REBOOT, @@ -416,7 +418,8 @@ mymain(void) QEMU_CAPS_DRIVE_AIO, QEMU_CAPS_NO_SHUTDOWN, QEMU_CAPS_PCI_ROMBAR, - QEMU_CAPS_NO_ACPI); + QEMU_CAPS_NO_ACPI, + QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("qemu-kvm-0.13.0", 13000, 1, 0, QEMU_CAPS_VNC_COLON, QEMU_CAPS_NO_REBOOT, @@ -472,7 +475,8 @@ mymain(void) QEMU_CAPS_USB_HUB, QEMU_CAPS_NO_SHUTDOWN, QEMU_CAPS_PCI_ROMBAR, - QEMU_CAPS_NO_ACPI); + QEMU_CAPS_NO_ACPI, + QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("qemu-kvm-0.12.1.2-rhel61", 12001, 1, 0, QEMU_CAPS_VNC_COLON, QEMU_CAPS_NO_REBOOT, @@ -524,7 +528,9 @@ mymain(void) QEMU_CAPS_USB_HUB, QEMU_CAPS_NO_SHUTDOWN, QEMU_CAPS_PCI_ROMBAR, - QEMU_CAPS_NO_ACPI); + QEMU_CAPS_NO_ACPI, + QEMU_CAPS_VIRTIO_BLK_SCSI, + QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("qemu-kvm-0.12.1.2-rhel62-beta", 12001, 1, 0, QEMU_CAPS_VNC_COLON, QEMU_CAPS_NO_REBOOT, @@ -584,7 +590,9 @@ mymain(void) QEMU_CAPS_USB_HUB, QEMU_CAPS_NO_SHUTDOWN, QEMU_CAPS_PCI_ROMBAR, - QEMU_CAPS_NO_ACPI); + QEMU_CAPS_NO_ACPI, + QEMU_CAPS_VIRTIO_BLK_SCSI, + QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("qemu-1.0", 1000000, 0, 0, QEMU_CAPS_VNC_COLON, QEMU_CAPS_NO_REBOOT, @@ -648,7 +656,9 @@ mymain(void) QEMU_CAPS_PCI_ROMBAR, QEMU_CAPS_ICH9_AHCI, QEMU_CAPS_NO_ACPI, - QEMU_CAPS_FSDEV_READONLY); + QEMU_CAPS_FSDEV_READONLY, + QEMU_CAPS_VIRTIO_BLK_SCSI, + QEMU_CAPS_VIRTIO_BLK_SG_IO); return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; } diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-complex-bootindex.args b/tests/qemuxml2argvdata/qemuxml2argv-boot-complex-bootindex.args index ae0b2b1..ed00c64 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-boot-complex-bootindex.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-complex-bootindex.args @@ -9,9 +9,9 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test \ -monitor unix:/tmp/test-monitor,server,nowait \ -no-acpi \ -drive file=/tmp/vda.img,if=none,id=drive-virtio-disk0 \ --device virtio-blk-pci,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=3 \ +-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=3 \ -drive file=/tmp/vdb.img,if=none,id=drive-virtio-disk1 \ --device virtio-blk-pci,bus=pci.0,addr=0x6,drive=drive-virtio-disk1,id=virtio-disk1 \ +-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk1,id=virtio-disk1 \ -drive file=/dev/HostVG/hda,if=none,id=drive-ide0-0-0 \ -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \ -drive file=/dev/HostVG/hdb,if=none,id=drive-ide0-0-1 \ diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-complex.args b/tests/qemuxml2argvdata/qemuxml2argv-boot-complex.args index c8d32ec..cffb8ad 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-boot-complex.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-complex.args @@ -10,9 +10,9 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test \ -no-acpi \ -boot dnca \ -drive file=/tmp/vda.img,if=none,id=drive-virtio-disk0,boot=on \ --device virtio-blk-pci,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0 \ +-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0 \ -drive file=/tmp/vdb.img,if=none,id=drive-virtio-disk1 \ --device virtio-blk-pci,bus=pci.0,addr=0x6,drive=drive-virtio-disk1,id=virtio-disk1 \ +-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk1,id=virtio-disk1 \ -drive file=/dev/HostVG/hda,if=none,id=drive-ide0-0-0 \ -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \ -drive file=/dev/HostVG/hdb,if=none,id=drive-ide0-0-1 \ diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-order.args b/tests/qemuxml2argvdata/qemuxml2argv-boot-order.args index 14367b1..9220987 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-boot-order.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-order.args @@ -12,7 +12,7 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu \ -drive file=/root/boot.iso,if=none,media=cdrom,id=drive-ide0-1-0 \ -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0,bootindex=1 \ -drive file=sheepdog:example.org:6000:image,if=none,id=drive-virtio-disk0 \ --device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=3 \ +-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=3 \ -drive file=/dev/null,if=none,id=drive-fdc0-0-1 \ -global isa-fdc.driveB=drive-fdc0-0-1 \ -global isa-fdc.bootindexB=4 \ diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.args b/tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.args index c512f15..2f4e7fd 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.args @@ -3,7 +3,7 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ -monitor unix:/tmp/test-monitor,server,nowait -no-acpi \ -boot dc -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \ -drive file=/var/lib/libvirt/images/f14.img,if=none,id=drive-virtio-disk0 \ --device virtio-blk-pci,ioeventfd=on,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 \ +-device virtio-blk-pci,ioeventfd=on,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 \ -drive file=/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso,if=none,media=cdrom,id=drive-ide0-1-0 \ -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 \ -device virtio-net-pci,tx=bh,ioeventfd=off,vlan=0,id=net0,mac=52:54:00:e5:48:58,bus=pci.0,addr=0x3 \ diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-order.args b/tests/qemuxml2argvdata/qemuxml2argv-disk-order.args index 6483e5e..0643072 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-disk-order.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-order.args @@ -13,8 +13,8 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu \ -drive file=/dev/HostVG/QEMUGuest2,if=none,media=cdrom,id=drive-ide0-1-0 \ -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 \ -drive file=/tmp/data.img,if=none,id=drive-virtio-disk0 \ --device virtio-blk-pci,bus=pci.0,addr=0x3,drive=drive-virtio-disk0,id=virtio-disk0 \ +-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x3,drive=drive-virtio-disk0,id=virtio-disk0 \ -drive file=/tmp/logs.img,if=none,id=drive-virtio-disk1 \ --device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk1,id=virtio-disk1 \ +-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk1,id=virtio-disk1 \ -usb \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-encrypted-disk.args b/tests/qemuxml2argvdata/qemuxml2argv-encrypted-disk.args index c6634fd..022f6ad 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-encrypted-disk.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-encrypted-disk.args @@ -5,6 +5,6 @@ encryptdisk -uuid 496898a6-e6ff-f7c8-5dc2-3cf410945ee9 -nographic -nodefconfig \ path=//var/lib/libvirt/qemu/encryptdisk.monitor,server,nowait -mon \ chardev=monitor,mode=readline -rtc base=utc -no-acpi -boot c -drive \ file=/storage/guest_disks/encryptdisk,if=none,id=drive-virtio-disk0,boot=on,\ -format=qcow2 -device virtio-blk-pci,bus=pci.0,addr=0x4,\ +format=qcow2 -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,\ drive=drive-virtio-disk0,id=virtio-disk0 -usb -device virtio-balloon-pci,\ id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-event_idx.args b/tests/qemuxml2argvdata/qemuxml2argv-event_idx.args index f6ebb60..a506274 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-event_idx.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-event_idx.args @@ -3,7 +3,7 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ -monitor unix:/tmp/test-monitor,server,nowait -no-acpi \ -boot dc -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \ -drive file=/var/lib/libvirt/images/f14.img,if=none,id=drive-virtio-disk0 \ --device virtio-blk-pci,event_idx=on,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 \ +-device virtio-blk-pci,event_idx=on,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 \ -drive file=/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso,if=none,media=cdrom,id=drive-ide0-1-0 \ -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 \ -device virtio-net-pci,event_idx=off,vlan=0,id=net0,mac=52:54:00:e5:48:58,bus=pci.0,addr=0x3 \ diff --git a/tests/qemuxml2argvdata/qemuxml2argv-virtio-lun.args b/tests/qemuxml2argvdata/qemuxml2argv-virtio-lun.args new file mode 100644 index 0000000..5df9182 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-virtio-lun.args @@ -0,0 +1,11 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ +/usr/bin/qemu -S -M pc-0.13 -m 1024 -smp 1 -nodefaults \ +-monitor unix:/tmp/test-monitor,server,nowait -no-acpi \ +-boot dc -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \ +-drive file=/dev/sdfake,if=none,id=drive-virtio-disk0 \ +-device virtio-blk-pci,scsi=on,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 \ +-drive file=/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso,if=none,media=cdrom,id=drive-ide0-1-0 \ +-device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 \ +-device virtio-net-pci,vlan=0,id=net0,mac=52:54:00:e5:48:58,bus=pci.0,addr=0x3 \ +-net user,vlan=0,name=hostnet0 -serial pty -usb -vnc 127.0.0.1:-809 -std-vga \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-virtio-lun.xml b/tests/qemuxml2argvdata/qemuxml2argv-virtio-lun.xml new file mode 100644 index 0000000..abe1b2f --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-virtio-lun.xml @@ -0,0 +1,57 @@ +<domain type='qemu'> + <name>test</name> + <uuid>bba65c0e-c049-934f-b6aa-4e2c0582acdf</uuid> + <memory>1048576</memory> + <currentMemory>1048576</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='x86_64' machine='pc-0.13'>hvm</type> + <boot dev='cdrom'/> + <boot dev='hd'/> + <bootmenu enable='yes'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='lun'> + <driver name='qemu' type='qcow2'/> + <source dev='/dev/sdfake'/> + <target dev='vda' bus='virtio'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> + </disk> + <disk type='file' device='cdrom'> + <driver name='qemu' type='raw'/> + <source file='/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso'/> + <target dev='hdc' bus='ide'/> + <readonly/> + <address type='drive' controller='0' bus='1' unit='0'/> + </disk> + <controller type='virtio-serial' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> + </controller> + <controller type='ide' index='0'/> + <interface type='user'> + <mac address='52:54:00:e5:48:58'/> + <model type='virtio'/> + <driver name='vhost' event_idx='off'/> + </interface> + <serial type='pty'> + <target port='0'/> + </serial> + <console type='pty'> + <target type='serial' port='0'/> + </console> + <input type='mouse' bus='ps2'/> + <graphics type='vnc' port='5091' autoport='no' listen='127.0.0.1'> + <listen type='address' address='127.0.0.1'/> + </graphics> + <video> + <model type='vga' vram='9216' heads='1'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> + </video> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 69e2612..d87654c 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -342,12 +342,15 @@ mymain(void) QEMU_CAPS_BOOT_MENU, QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE, QEMU_CAPS_BOOTINDEX); DO_TEST("boot-order", false, - QEMU_CAPS_BOOTINDEX, QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE); + QEMU_CAPS_BOOTINDEX, QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, + QEMU_CAPS_VIRTIO_BLK_SCSI, QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("boot-complex", false, - QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_BOOT); + QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_BOOT, + QEMU_CAPS_VIRTIO_BLK_SCSI, QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("boot-complex-bootindex", false, QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_BOOT, - QEMU_CAPS_BOOTINDEX); + QEMU_CAPS_BOOTINDEX, + QEMU_CAPS_VIRTIO_BLK_SCSI, QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("bootloader", true, QEMU_CAPS_DOMID); DO_TEST("bios", false, QEMU_CAPS_DEVICE, QEMU_CAPS_SGA); DO_TEST("clock-utc", false, NONE); @@ -365,7 +368,8 @@ mymain(void) DO_TEST("disk-many", false, NONE); DO_TEST("disk-virtio", false, QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_BOOT); DO_TEST("disk-order", false, - QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE_BOOT); + QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE_BOOT, + QEMU_CAPS_VIRTIO_BLK_SCSI, QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("disk-xenvbd", false, QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_BOOT); DO_TEST("disk-drive-boot-disk", false, QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_BOOT); @@ -433,14 +437,20 @@ mymain(void) QEMU_CAPS_DRIVE_CACHE_V2, QEMU_CAPS_DRIVE_FORMAT); DO_TEST("disk-ioeventfd", false, QEMU_CAPS_DRIVE, QEMU_CAPS_VIRTIO_IOEVENTFD, - QEMU_CAPS_VIRTIO_TX_ALG, QEMU_CAPS_DEVICE); + QEMU_CAPS_VIRTIO_TX_ALG, QEMU_CAPS_DEVICE, + QEMU_CAPS_VIRTIO_BLK_SCSI, QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("disk-snapshot", false, QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_CACHE_V2, QEMU_CAPS_DRIVE_FORMAT); DO_TEST("event_idx", false, QEMU_CAPS_DRIVE, QEMU_CAPS_VIRTIO_BLK_EVENT_IDX, QEMU_CAPS_VIRTIO_NET_EVENT_IDX, - QEMU_CAPS_DEVICE); + QEMU_CAPS_DEVICE, + QEMU_CAPS_VIRTIO_BLK_SCSI, QEMU_CAPS_VIRTIO_BLK_SG_IO); + DO_TEST("virtio-lun", false, + QEMU_CAPS_DRIVE, + QEMU_CAPS_DEVICE, + QEMU_CAPS_VIRTIO_BLK_SCSI, QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("graphics-vnc", false, NONE); DO_TEST("graphics-vnc-socket", false, NONE); diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index 0a8a28e..2cc1f7d 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -190,6 +190,7 @@ mymain(void) DO_TEST("smp"); DO_TEST("lease"); DO_TEST("event_idx"); + DO_TEST("virtio-lun"); DO_TEST("usb-redir"); DO_TEST("blkdeviotune"); -- 1.7.7.4

On 01/05/2012 01:49 PM, Eric Blake wrote: Thanks for the reviews, Eric! Because any libvirt change would be pointless without also updating qemu (old qemu would just ignore "scsi=off" and pass through the commands anyway), I waited until after 0.9.9 was released in order to avoid any last-minute breakage. These two patches are now pushed, though.