From: "Fred A. Kemp" <anonym(a)lavabit.com&gt; Add an attribute named 'removable' to the 'target' element of disks, which controls the removable flag. For instance, on a Linux guest it controls the value of /sys/block/$dev/removable. This option is only valid for USB disks (i.e. bus='usb'), and its default value is 'off', which is the same behaviour as before. To achieve this, 'removable=on' (or 'off') is appended to the '-device usb-storage' parameter sent to qemu when adding a USB disk via '-disk'. A capability flag QEMU_CAPS_USB_STORAGE_REMOVABLE was added to keep track if this option is supported by the qemu version used. Bug: https://bugzilla.redhat.com/show_bug.cgi?id=922495 --- docs/formatdomain.html.in | 8 +++-- docs/schemas/domaincommon.rng | 8 +++++ src/conf/domain_conf.c | 31 ++++++++++++++++++-- src/conf/domain_conf.h | 1 + src/qemu/qemu_capabilities.c | 8 +++++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 17 +++++++++++ tests/qemuhelpdata/qemu-1.2.0-device | 11 +++++++ tests/qemuhelpdata/qemu-kvm-1.2.0-device | 11 +++++++ tests/qemuhelptest.c | 6 ++-- .../qemuxml2argv-disk-usb-device-removable.args | 8 +++++ .../qemuxml2argv-disk-usb-device-removable.xml | 27 +++++++++++++++++ tests/qemuxml2argvtest.c | 3 ++ 13 files changed, 133 insertions(+), 7 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 7601aaa..259ecd0 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1667,9 +1667,13 @@ removable disks (i.e. CDROM or Floppy disk), the value can be either "open" or "closed", defaults to "closed". NB, the value of <code>tray</code> could be updated while the domain is running. - <span class="since">Since 0.0.3; <code>bus</code> attribute since 0.4.3; + The optional attribute <code>removable</code> sets the + removable flag for USB disks, and its value can be either "on" + or "off", defaulting to "off". <span class="since">Since + 0.0.3; <code>bus</code> attribute since 0.4.3; <code>tray</code> attribute since 0.9.11; "usb" attribute value since - after 0.4.4; "sata" attribute value since 0.9.7</span> + after 0.4.4; "sata" attribute value since 0.9.7; "removable" attribute + value since X.Y.Z</span> </dd> <dt><code>iotune</code></dt> <dd>The optional <code>iotune</code> element provides the diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index 745b959..65a52d0 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -1278,6 +1278,14 @@ </choice> </attribute> </optional> + <optional> + <attribute name="removable"> + <choice> + <value>on</value> + <value>off</value> + </choice> + </attribute> + </optional> </element> </define> <define name="geometry"> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 10cb7f6..b298ac5 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -4747,6 +4747,7 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt, char *authUUID = NULL; char *usageType = NULL; char *tray = NULL; + char *removable = NULL; char *logical_block_size = NULL; char *physical_block_size = NULL; char *wwn = NULL; @@ -4903,6 +4904,7 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt, target = virXMLPropString(cur, "dev"); bus = virXMLPropString(cur, "bus"); tray = virXMLPropString(cur, "tray"); + removable = virXMLPropString(cur, "removable"); /* HACK: Work around for compat with Xen * driver in previous libvirt releases */ @@ -5336,6 +5338,24 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt, def->tray_status = VIR_DOMAIN_DISK_TRAY_CLOSED; } + if (removable) { + if ((def->removable = virDomainFeatureStateTypeFromString(removable)) < 0) { + virReportError(VIR_ERR_XML_ERROR, + _("unknown disk removable status '%s'"), removable); + goto error; + } + + if (def->bus != VIR_DOMAIN_DISK_BUS_USB) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("removable is only valid for usb disks")); + goto error; + } + } else { + if (def->bus == VIR_DOMAIN_DISK_BUS_USB) { + def->removable = VIR_DOMAIN_FEATURE_STATE_DEFAULT; + } + } + if (def->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY && def->bus != VIR_DOMAIN_DISK_BUS_FDC) { virReportError(VIR_ERR_INTERNAL_ERROR, @@ -5533,6 +5553,7 @@ cleanup: VIR_FREE(target); VIR_FREE(source); VIR_FREE(tray); + VIR_FREE(removable); VIR_FREE(trans); while (nhosts > 0) { virDomainDiskHostDefFree(&hosts[nhosts - 1]); @@ -14347,10 +14368,14 @@ virDomainDiskDefFormat(virBufferPtr buf, if ((def->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY || def->device == VIR_DOMAIN_DISK_DEVICE_CDROM) && def->tray_status != VIR_DOMAIN_DISK_TRAY_CLOSED) - virBufferAsprintf(buf, " tray='%s'/>\n", + virBufferAsprintf(buf, " tray='%s'", virDomainDiskTrayTypeToString(def->tray_status)); - else - virBufferAddLit(buf, "/>\n"); + if (def->bus == VIR_DOMAIN_DISK_BUS_USB && + def->removable != VIR_DOMAIN_FEATURE_STATE_DEFAULT) { + virBufferAsprintf(buf, " removable='%s'", + virDomainFeatureStateTypeToString(def->removable)); + } + virBufferAddLit(buf, "/>\n"); /*disk I/O throttling*/ if (def->blkdeviotune.total_bytes_sec || diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index f265966..fedf87e 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -690,6 +690,7 @@ struct _virDomainDiskDef { char *src; char *dst; int tray_status; + int removable; int protocol; size_t nhosts; virDomainDiskHostDefPtr hosts; diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 20deda0..c007352 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -235,6 +235,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST, "vnc-share-policy", /* 150 */ "device-del-event", "usb-storage", + "usb-storage.removable", ); struct _virQEMUCaps { @@ -1438,6 +1439,10 @@ static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsScsiGeneric[] = { { "bootindex", QEMU_CAPS_DEVICE_SCSI_GENERIC_BOOTINDEX }, }; +static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsUsbStorage[] = { + { "removable", QEMU_CAPS_USB_STORAGE_REMOVABLE }, +}; + struct virQEMUCapsObjectTypeProps { const char *type; struct virQEMUCapsStringFlags *props; @@ -1475,6 +1480,8 @@ static struct virQEMUCapsObjectTypeProps virQEMUCapsObjectProps[] = { ARRAY_CARDINALITY(virQEMUCapsObjectPropsUsbHost) }, { "scsi-generic", virQEMUCapsObjectPropsScsiGeneric, ARRAY_CARDINALITY(virQEMUCapsObjectPropsScsiGeneric) }, + { "usb-storage", virQEMUCapsObjectPropsUsbStorage, + ARRAY_CARDINALITY(virQEMUCapsObjectPropsUsbStorage) }, }; @@ -1665,6 +1672,7 @@ virQEMUCapsExtractDeviceStr(const char *qemu, "-device", "ide-drive,?", "-device", "usb-host,?", "-device", "scsi-generic,?", + "-device", "usb-storage,?", NULL); /* qemu -help goes to stdout, but qemu -device ? goes to stderr. */ virCommandSetErrorBuffer(cmd, &output); diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 245b90b..1e45812 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -191,6 +191,7 @@ enum virQEMUCapsFlags { QEMU_CAPS_VNC_SHARE_POLICY = 150, /* set display sharing policy */ QEMU_CAPS_DEVICE_DEL_EVENT = 151, /* DEVICE_DELETED event */ QEMU_CAPS_DEVICE_USB_STORAGE = 152, /* -device usb-storage */ + QEMU_CAPS_USB_STORAGE_REMOVABLE = 153, /* usb-storage.removable */ QEMU_CAPS_LAST, /* this must always be the last item */ }; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index b658d22..f04ef45 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -3768,6 +3768,22 @@ qemuBuildDriveDevStr(virDomainDefPtr def, if (disk->product) virBufferAsprintf(&opt, ",product=%s", disk->product); + if (disk->bus == VIR_DOMAIN_DISK_BUS_USB) { + if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_STORAGE_REMOVABLE)) { + if (disk->removable == VIR_DOMAIN_FEATURE_STATE_ON) + virBufferAsprintf(&opt, ",removable=on"); + else + virBufferAsprintf(&opt, ",removable=off"); + } else { + if (disk->removable != VIR_DOMAIN_FEATURE_STATE_DEFAULT) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("This QEMU doesn't support setting the " + "removable flag of USB storage devices")); + goto error; + } + } + } + if (virBufferError(&opt)) { virReportOOMError(); goto error; @@ -10627,6 +10643,7 @@ virDomainDefPtr qemuParseCommandLine(virCapsPtr qemuCaps, disk->type = VIR_DOMAIN_DISK_TYPE_FILE; disk->device = VIR_DOMAIN_DISK_DEVICE_DISK; disk->bus = VIR_DOMAIN_DISK_BUS_USB; + disk->removable = VIR_DOMAIN_FEATURE_STATE_DEFAULT; if (VIR_STRDUP(disk->dst, "sda") < 0) goto error; if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) diff --git a/tests/qemuhelpdata/qemu-1.2.0-device b/tests/qemuhelpdata/qemu-1.2.0-device index 40845e4..bfc3a4d 100644 --- a/tests/qemuhelpdata/qemu-1.2.0-device +++ b/tests/qemuhelpdata/qemu-1.2.0-device @@ -213,3 +213,14 @@ scsi-generic.bootindex=int32 scsi-generic.channel=uint32 scsi-generic.scsi-id=uint32 scsi-generic.lun=uint32 +usb-storage.drive=drive +usb-storage.logical_block_size=blocksize +usb-storage.physical_block_size=blocksize +usb-storage.min_io_size=uint16 +usb-storage.opt_io_size=uint32 +usb-storage.bootindex=int32 +usb-storage.discard_granularity=uint32 +usb-storage.serial=string +usb-storage.removable=on/off +usb-storage.port=string +usb-storage.full-path=on/off diff --git a/tests/qemuhelpdata/qemu-kvm-1.2.0-device b/tests/qemuhelpdata/qemu-kvm-1.2.0-device index 09e3ef7..f4bfd68 100644 --- a/tests/qemuhelpdata/qemu-kvm-1.2.0-device +++ b/tests/qemuhelpdata/qemu-kvm-1.2.0-device @@ -225,3 +225,14 @@ scsi-generic.bootindex=int32 scsi-generic.channel=uint32 scsi-generic.scsi-id=uint32 scsi-generic.lun=uint32 +usb-storage.drive=drive +usb-storage.logical_block_size=blocksize +usb-storage.physical_block_size=blocksize +usb-storage.min_io_size=uint16 +usb-storage.opt_io_size=uint32 +usb-storage.bootindex=int32 +usb-storage.discard_granularity=uint32 +usb-storage.serial=string +usb-storage.removable=on/off +usb-storage.port=string +usb-storage.full-path=on/off diff --git a/tests/qemuhelptest.c b/tests/qemuhelptest.c index cfb2c94..c6bd0eb 100644 --- a/tests/qemuhelptest.c +++ b/tests/qemuhelptest.c @@ -943,7 +943,8 @@ mymain(void) QEMU_CAPS_DEVICE_SCSI_GENERIC, QEMU_CAPS_DEVICE_SCSI_GENERIC_BOOTINDEX, QEMU_CAPS_VNC_SHARE_POLICY, - QEMU_CAPS_DEVICE_USB_STORAGE); + QEMU_CAPS_DEVICE_USB_STORAGE, + QEMU_CAPS_USB_STORAGE_REMOVABLE); DO_TEST("qemu-kvm-1.2.0", 1002000, 1, 0, QEMU_CAPS_VNC_COLON, QEMU_CAPS_NO_REBOOT, @@ -1056,7 +1057,8 @@ mymain(void) QEMU_CAPS_DEVICE_SCSI_GENERIC, QEMU_CAPS_DEVICE_SCSI_GENERIC_BOOTINDEX, QEMU_CAPS_VNC_SHARE_POLICY, - QEMU_CAPS_DEVICE_USB_STORAGE); + QEMU_CAPS_DEVICE_USB_STORAGE, + QEMU_CAPS_USB_STORAGE_REMOVABLE); return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; } diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.args b/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.args new file mode 100644 index 0000000..36be080 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.args @@ -0,0 +1,8 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M \ +pc -m 214 -smp 1 -nographic -nodefconfig -nodefaults -monitor \ +unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -usb -drive \ +file=/dev/HostVG/QEMUGuest1,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=/tmp/usbdisk.img,\ +if=none,id=drive-usb-disk0 -device usb-storage,drive=drive-usb-disk0,\ +id=usb-disk0,removable=on -device virtio-balloon-pci,id=balloon0,bus=pci.0,\ +addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.xml new file mode 100644 index 0000000..6ee3e9b --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.xml @@ -0,0 +1,27 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + <disk type='file' device='disk'> + <source file='/tmp/usbdisk.img'/> + <target dev='sda' bus='usb' removable='on'/> + </disk> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index f6f87d4..55c8f1b 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -542,6 +542,9 @@ mymain(void) DO_TEST("disk-usb-device", QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_DEVICE_USB_STORAGE, QEMU_CAPS_NODEFCONFIG); + DO_TEST("disk-usb-device-removable", + QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_DEVICE_USB_STORAGE, + QEMU_CAPS_USB_STORAGE_REMOVABLE, QEMU_CAPS_NODEFCONFIG); DO_TEST("disk-scsi-device", QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_SCSI_LSI); -- 1.7.10.4