[libvirt] [PATCH v3 0/2] Add support for zero-write detection
v3: - I know Peter said he'll review it, but there are conflicts every once in a while, so rebased version will apply cleanly for a while - And it's actually not that big of a change to wait for some bigger things to be designed, I believe =) - https://www.redhat.com/archives/libvir-list/2016-April/msg01926.html v2: - use 'zeroes' instead of 'zeros' - https://www.redhat.com/archives/libvir-list/2016-February/msg01146.html v1: - https://www.redhat.com/archives/libvir-list/2015-December/msg00511.html Martin Kletzander (2): conf: Add support of zero-detection for disks qemu: Add support for zero-detection writes docs/formatdomain.html.in | 10 +++++ docs/schemas/domaincommon.rng | 12 ++++++ src/conf/domain_conf.c | 21 +++++++++- src/conf/domain_conf.h | 11 ++++++ src/libvirt_private.syms | 2 + src/qemu/qemu_capabilities.c | 2 + src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 11 ++++++ tests/qemucapabilitiesdata/caps_2.1.1-1.caps | 1 + tests/qemucapabilitiesdata/caps_2.4.0-1.caps | 1 + tests/qemucapabilitiesdata/caps_2.5.0-1.caps | 1 + tests/qemucapabilitiesdata/caps_2.6.0-1.caps | 1 + .../qemuxml2argv-disk-drive-detect-zeroes.args | 27 +++++++++++++ .../qemuxml2argv-disk-drive-detect-zeroes.xml | 45 ++++++++++++++++++++++ tests/qemuxml2argvtest.c | 3 ++ .../qemuxml2xmlout-disk-drive-detect-zeroes.xml | 1 + tests/qemuxml2xmltest.c | 1 + 17 files changed, 149 insertions(+), 2 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.xml create mode 120000 tests/qemuxml2xmloutdata/qemuxml2xmlout-disk-drive-detect-zeroes.xml -- 2.8.1
This option allows or disallows detection of zero-writes if it is set to "on" or "off", respectively. It can be also set to "unmap" in which case it will try discarding that part of image based on the value of the "discard" option. Signed-off-by: Martin Kletzander <mkletzan@redhat.com> --- docs/formatdomain.html.in | 10 +++++ docs/schemas/domaincommon.rng | 12 ++++++ src/conf/domain_conf.c | 21 +++++++++- src/conf/domain_conf.h | 11 ++++++ src/libvirt_private.syms | 2 + .../qemuxml2argv-disk-drive-detect-zeroes.xml | 45 ++++++++++++++++++++++ .../qemuxml2xmlout-disk-drive-detect-zeroes.xml | 1 + tests/qemuxml2xmltest.c | 1 + 8 files changed, 101 insertions(+), 2 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.xml create mode 120000 tests/qemuxml2xmloutdata/qemuxml2xmlout-disk-drive-detect-zeroes.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index d2db53b41823..3d09f511a8c4 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -2564,6 +2564,16 @@ are numbered from 1 to the domain iothreads value. <span class='since'>Since 1.2.8 (QEMU only)</span> </li> + <li> + The optional <code>detect_zeroes</code> attribute controls + whether to detect zero write requests. The value can be "off", + "on" or "unmap". First two values turn the detection off and + on, respectively, the third value turns the detection on and + tries to discard such areas from the image based on the value + of <code>discard</code> above (it will act as "on" if + <code>discard</code> is set to "ignore"). + <span class='since'>Since 1.3.1 (QEMU and KVM only)</span> + </li> </ul> </dd> <dt><code>backenddomain</code></dt> diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index f77bbcf59828..59f49e52655d 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -1615,6 +1615,9 @@ <optional> <ref name="driverIOThread"/> </optional> + <optional> + <ref name="detect_zeroes"/> + </optional> <empty/> </element> </define> @@ -1699,6 +1702,15 @@ <ref name="unsignedInt"/> </attribute> </define> + <define name="detect_zeroes"> + <attribute name='detect_zeroes'> + <choice> + <value>off</value> + <value>on</value> + <value>unmap</value> + </choice> + </attribute> + </define> <define name="controller"> <element name="controller"> <attribute name="index"> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index d8bed670f243..1a336d08cda5 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -805,6 +805,12 @@ VIR_ENUM_IMPL(virDomainDiskDiscard, VIR_DOMAIN_DISK_DISCARD_LAST, "unmap", "ignore") +VIR_ENUM_IMPL(virDomainDiskDetectZeroes, VIR_DOMAIN_DISK_DETECT_ZEROES_LAST, + "default", + "off", + "on", + "unmap") + VIR_ENUM_IMPL(virDomainDiskMirrorState, VIR_DOMAIN_DISK_MIRROR_STATE_LAST, "none", "yes", @@ -7062,7 +7068,7 @@ virDomainDiskDefDriverParseXML(virDomainDiskDefPtr def, } else { if ((def->src->format = virStorageFileFormatTypeFromString(tmp)) <= 0) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("unknown driver format value '%s'"), tmp); + _("unknown driver type value '%s'"), tmp); goto cleanup; } } @@ -7070,6 +7076,14 @@ virDomainDiskDefDriverParseXML(virDomainDiskDefPtr def, VIR_FREE(tmp); } + if ((tmp = virXMLPropString(cur, "detect_zeroes")) && + (def->detect_zeroes = virDomainDiskDetectZeroesTypeFromString(tmp)) <= 0) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("unknown driver detect_zeroes value '%s'"), tmp); + goto cleanup; + } + VIR_FREE(tmp); + ret = 0; cleanup: @@ -19111,6 +19125,7 @@ virDomainDiskDefFormat(virBufferPtr buf, const char *copy_on_read = virTristateSwitchTypeToString(def->copy_on_read); const char *sgio = virDomainDeviceSGIOTypeToString(def->sgio); const char *discard = virDomainDiskDiscardTypeToString(def->discard); + const char *detect_zeroes = virDomainDiskDetectZeroesTypeToString(def->detect_zeroes); if (!type || !def->src->type) { virReportError(VIR_ERR_INTERNAL_ERROR, @@ -19165,7 +19180,7 @@ virDomainDiskDefFormat(virBufferPtr buf, if (def->src->driverName || def->src->format > 0 || def->cachemode || def->error_policy || def->rerror_policy || def->iomode || def->ioeventfd || def->event_idx || def->copy_on_read || - def->discard || def->iothread) { + def->discard || def->iothread || def->detect_zeroes) { virBufferAddLit(buf, "<driver"); virBufferEscapeString(buf, " name='%s'", def->src->driverName); if (def->src->format > 0) @@ -19189,6 +19204,8 @@ virDomainDiskDefFormat(virBufferPtr buf, virBufferAsprintf(buf, " discard='%s'", discard); if (def->iothread) virBufferAsprintf(buf, " iothread='%u'", def->iothread); + if (def->detect_zeroes) + virBufferAsprintf(buf, " detect_zeroes='%s'", detect_zeroes); virBufferAddLit(buf, "/>\n"); } diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 31e7a86d4746..026fce0cd1e7 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -655,6 +655,15 @@ typedef enum { VIR_DOMAIN_DISK_DISCARD_LAST } virDomainDiskDiscard; +typedef enum { + VIR_DOMAIN_DISK_DETECT_ZEROES_DEFAULT = 0, + VIR_DOMAIN_DISK_DETECT_ZEROES_OFF, + VIR_DOMAIN_DISK_DETECT_ZEROES_ON, + VIR_DOMAIN_DISK_DETECT_ZEROES_UNMAP, + + VIR_DOMAIN_DISK_DETECT_ZEROES_LAST +} virDomainDiskDetectZeroes; + typedef struct _virDomainBlockIoTuneInfo virDomainBlockIoTuneInfo; struct _virDomainBlockIoTuneInfo { unsigned long long total_bytes_sec; @@ -733,6 +742,7 @@ struct _virDomainDiskDef { int sgio; /* enum virDomainDeviceSGIO */ int discard; /* enum virDomainDiskDiscard */ unsigned int iothread; /* unused = 0, > 0 specific thread # */ + int detect_zeroes; /* enum virDomainDiskDetectZeroes */ char *domain_name; /* backend domain name */ }; @@ -3011,6 +3021,7 @@ VIR_ENUM_DECL(virDomainDiskIo) VIR_ENUM_DECL(virDomainDeviceSGIO) VIR_ENUM_DECL(virDomainDiskTray) VIR_ENUM_DECL(virDomainDiskDiscard) +VIR_ENUM_DECL(virDomainDiskDetectZeroes) VIR_ENUM_DECL(virDomainDiskMirrorState) VIR_ENUM_DECL(virDomainController) VIR_ENUM_DECL(virDomainControllerModelPCI) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 5030ec3a1521..dccfda8f2c4f 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -263,6 +263,8 @@ virDomainDiskDefForeachPath; virDomainDiskDefFree; virDomainDiskDefNew; virDomainDiskDefSourceParse; +virDomainDiskDetectZeroesTypeFromString; +virDomainDiskDetectZeroesTypeToString; virDomainDiskDeviceTypeToString; virDomainDiskDiscardTypeToString; virDomainDiskErrorPolicyTypeFromString; diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.xml new file mode 100644 index 000000000000..8953f50f3f92 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.xml @@ -0,0 +1,45 @@ +<domain type='qemu'> + <name>test</name> + <uuid>92d7a226-cfae-425b-a6d3-00bbf9ec5c9e</uuid> + <memory unit='KiB'>1048576</memory> + <currentMemory unit='KiB'>1048576</currentMemory> + <vcpu placement='static'>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='file' device='disk'> + <driver name='qemu' type='qcow2' discard='unmap' detect_zeroes='unmap'/> + <source file='/var/lib/libvirt/images/f14.img'/> + <target dev='vda' bus='virtio'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> + </disk> + <disk type='file' device='cdrom'> + <driver discard='ignore' detect_zeroes='off'/> + <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' target='0' unit='0'/> + </disk> + <controller type='usb' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> + </controller> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + <controller type='pci' index='0' model='pci-root'/> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <memballoon model='virtio'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> + </memballoon> + </devices> +</domain> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-disk-drive-detect-zeroes.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-disk-drive-detect-zeroes.xml new file mode 120000 index 000000000000..afa3199d4a7e --- /dev/null +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-disk-drive-detect-zeroes.xml @@ -0,0 +1 @@ +../qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.xml \ No newline at end of file diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index 62f8f96c2274..cfeade83c26d 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -550,6 +550,7 @@ mymain(void) DO_TEST("disk-source-pool-mode"); DO_TEST("disk-drive-discard"); + DO_TEST("disk-drive-detect-zeroes"); DO_TEST("virtio-rng-random"); DO_TEST("virtio-rng-egd"); -- 2.8.1
On Thu, Apr 28, 2016 at 16:56:55 +0200, Martin Kletzander wrote:
This option allows or disallows detection of zero-writes if it is set to "on" or "off", respectively. It can be also set to "unmap" in which case it will try discarding that part of image based on the value of the "discard" option.
Neither this ...
Signed-off-by: Martin Kletzander <mkletzan@redhat.com> --- docs/formatdomain.html.in | 10 +++++ docs/schemas/domaincommon.rng | 12 ++++++ src/conf/domain_conf.c | 21 +++++++++- src/conf/domain_conf.h | 11 ++++++ src/libvirt_private.syms | 2 + .../qemuxml2argv-disk-drive-detect-zeroes.xml | 45 ++++++++++++++++++++++ .../qemuxml2xmlout-disk-drive-detect-zeroes.xml | 1 + tests/qemuxml2xmltest.c | 1 + 8 files changed, 101 insertions(+), 2 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.xml create mode 120000 tests/qemuxml2xmloutdata/qemuxml2xmlout-disk-drive-detect-zeroes.xml
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index d2db53b41823..3d09f511a8c4 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -2564,6 +2564,16 @@ are numbered from 1 to the domain iothreads value. <span class='since'>Since 1.2.8 (QEMU only)</span> </li> + <li> + The optional <code>detect_zeroes</code> attribute controls + whether to detect zero write requests. The value can be "off", + "on" or "unmap". First two values turn the detection off and + on, respectively, the third value turns the detection on and
... nor this does document the "on" option in a way that would describe what it actually does. Without the documentation it's not really clear what to expect in qemu or what to map this to in other hypervisors.
+ tries to discard such areas from the image based on the value + of <code>discard</code> above (it will act as "on" if + <code>discard</code> is set to "ignore").
This is behavior of qemu so it should be marked as so.
+ <span class='since'>Since 1.3.1 (QEMU and KVM only)</span>
Sorry for delaying the review. The version is unfortunately incorrect. Also why "KVM only"? Does qemu reject it in TCG mode? Shouldn't we then forbid trying to use it in such case (comment for next patch). Additionally it's not clear what happens if the storage technology does not support unmaping of the sectors.
+ </li> </ul> </dd> <dt><code>backenddomain</code></dt>
[...]
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index d8bed670f243..1a336d08cda5 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c
[...]
@@ -7062,7 +7068,7 @@ virDomainDiskDefDriverParseXML(virDomainDiskDefPtr def, } else { if ((def->src->format = virStorageFileFormatTypeFromString(tmp)) <= 0) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("unknown driver format value '%s'"), tmp); + _("unknown driver type value '%s'"), tmp);
Unrelated change.
goto cleanup; } }
[...] Peter
On Fri, Apr 29, 2016 at 08:52:50AM +0200, Peter Krempa wrote:
On Thu, Apr 28, 2016 at 16:56:55 +0200, Martin Kletzander wrote:
This option allows or disallows detection of zero-writes if it is set to "on" or "off", respectively. It can be also set to "unmap" in which case it will try discarding that part of image based on the value of the "discard" option.
Neither this ...
Signed-off-by: Martin Kletzander <mkletzan@redhat.com> --- docs/formatdomain.html.in | 10 +++++ docs/schemas/domaincommon.rng | 12 ++++++ src/conf/domain_conf.c | 21 +++++++++- src/conf/domain_conf.h | 11 ++++++ src/libvirt_private.syms | 2 + .../qemuxml2argv-disk-drive-detect-zeroes.xml | 45 ++++++++++++++++++++++ .../qemuxml2xmlout-disk-drive-detect-zeroes.xml | 1 + tests/qemuxml2xmltest.c | 1 + 8 files changed, 101 insertions(+), 2 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.xml create mode 120000 tests/qemuxml2xmloutdata/qemuxml2xmlout-disk-drive-detect-zeroes.xml
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index d2db53b41823..3d09f511a8c4 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -2564,6 +2564,16 @@ are numbered from 1 to the domain iothreads value. <span class='since'>Since 1.2.8 (QEMU only)</span> </li> + <li> + The optional <code>detect_zeroes</code> attribute controls + whether to detect zero write requests. The value can be "off", + "on" or "unmap". First two values turn the detection off and + on, respectively, the third value turns the detection on and
... nor this does document the "on" option in a way that would describe what it actually does.
Without the documentation it's not really clear what to expect in qemu or what to map this to in other hypervisors.
Makes sense, I fixed that for next version.
+ tries to discard such areas from the image based on the value + of <code>discard</code> above (it will act as "on" if + <code>discard</code> is set to "ignore").
This is behavior of qemu so it should be marked as so.
I felt like it made sense to mimic that behaviour as it is also pretty abstract and other drivers could make sense of all the values. If we say that this is specific to QEMU, then we are not creating any abstraction above that. If you like, though, I can add that information there.
+ <span class='since'>Since 1.3.1 (QEMU and KVM only)</span>
Sorry for delaying the review. The version is unfortunately incorrect.
Also why "KVM only"? Does qemu reject it in TCG mode? Shouldn't we then forbid trying to use it in such case (comment for next patch).
It doesn't say "KVM only", but "QEMU and KVM only" because it is supported by qemu driver with domain type='qemu' as well as type='kvm'. I thought that's what all the other occurrences of "QEMU and KVM" in this file mean. Anyway, I edited that part out.
Additionally it's not clear what happens if the storage technology does not support unmaping of the sectors.
With the documentation fixed, I believe it already makes sense, let's see what you'll say for v2 (I'll send that after the release).
+ </li> </ul> </dd> <dt><code>backenddomain</code></dt>
[...]
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index d8bed670f243..1a336d08cda5 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c
[...]
@@ -7062,7 +7068,7 @@ virDomainDiskDefDriverParseXML(virDomainDiskDefPtr def, } else { if ((def->src->format = virStorageFileFormatTypeFromString(tmp)) <= 0) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("unknown driver format value '%s'"), tmp); + _("unknown driver type value '%s'"), tmp);
Unrelated change.
thanks, edited out.
goto cleanup; } }
[...]
Peter
Signed-off-by: Martin Kletzander <mkletzan@redhat.com> --- src/qemu/qemu_capabilities.c | 2 ++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 11 +++++++++ tests/qemucapabilitiesdata/caps_2.1.1-1.caps | 1 + tests/qemucapabilitiesdata/caps_2.4.0-1.caps | 1 + tests/qemucapabilitiesdata/caps_2.5.0-1.caps | 1 + tests/qemucapabilitiesdata/caps_2.6.0-1.caps | 1 + .../qemuxml2argv-disk-drive-detect-zeroes.args | 27 ++++++++++++++++++++++ tests/qemuxml2argvtest.c | 3 +++ 9 files changed, 48 insertions(+) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.args diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index de5478879d1b..cff70c25fe8e 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -325,6 +325,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST, "pxb", "pxb-pcie", /* 220 */ + "drive-detect-zeroes", ); @@ -2635,6 +2636,7 @@ static struct virQEMUCapsCommandLineProps virQEMUCapsCommandLine[] = { { "machine", "mem-merge", QEMU_CAPS_MEM_MERGE }, { "machine", "vmport", QEMU_CAPS_MACHINE_VMPORT_OPT }, { "drive", "discard", QEMU_CAPS_DRIVE_DISCARD }, + { "drive", "detect-zeroes", QEMU_CAPS_DRIVE_DETECT_ZEROES }, { "realtime", "mlock", QEMU_CAPS_MLOCK }, { "boot-opts", "strict", QEMU_CAPS_BOOT_STRICT }, { "boot-opts", "reboot-timeout", QEMU_CAPS_REBOOT_TIMEOUT }, diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 83b8be314a29..e7881aa517f8 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -356,6 +356,7 @@ typedef enum { /* 220 */ QEMU_CAPS_DEVICE_PXB_PCIE, /* -device pxb-pcie */ + QEMU_CAPS_DRIVE_DETECT_ZEROES, /* -drive detect_zeroes= */ QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 6fbfe215bf29..d4614278213e 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1328,6 +1328,17 @@ qemuBuildDriveStr(virConnectPtr conn, } } + if (disk->detect_zeroes) { + if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_DETECT_ZEROES)) { + virBufferAsprintf(&opt, ",detect_zeroes=%s", + virDomainDiskDetectZeroesTypeToString(disk->detect_zeroes)); + } else { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("detect_zeroes is not supported by this QEMU binary")); + goto error; + } + } + if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MONITOR_JSON)) { const char *wpolicy = NULL, *rpolicy = NULL; diff --git a/tests/qemucapabilitiesdata/caps_2.1.1-1.caps b/tests/qemucapabilitiesdata/caps_2.1.1-1.caps index 8175743fd2b0..be5fc8e22fb8 100644 --- a/tests/qemucapabilitiesdata/caps_2.1.1-1.caps +++ b/tests/qemucapabilitiesdata/caps_2.1.1-1.caps @@ -162,4 +162,5 @@ <flag name='qxl.vram64_size_mb'/> <flag name='qxl-vga.vram64_size_mb'/> <flag name='debug-threads'/> + <flag name='drive-detect-zeroes'/> </qemuCaps> diff --git a/tests/qemucapabilitiesdata/caps_2.4.0-1.caps b/tests/qemucapabilitiesdata/caps_2.4.0-1.caps index 2cdf961eabfa..b31de2fd67cf 100644 --- a/tests/qemucapabilitiesdata/caps_2.4.0-1.caps +++ b/tests/qemucapabilitiesdata/caps_2.4.0-1.caps @@ -174,4 +174,5 @@ <flag name='qxl-vga.vram64_size_mb'/> <flag name='debug-threads'/> <flag name='pxb'/> + <flag name='drive-detect-zeroes'/> </qemuCaps> diff --git a/tests/qemucapabilitiesdata/caps_2.5.0-1.caps b/tests/qemucapabilitiesdata/caps_2.5.0-1.caps index ecaa165f7fa3..012d672b38e4 100644 --- a/tests/qemucapabilitiesdata/caps_2.5.0-1.caps +++ b/tests/qemucapabilitiesdata/caps_2.5.0-1.caps @@ -175,4 +175,5 @@ <flag name='qxl-vga.vram64_size_mb'/> <flag name='debug-threads'/> <flag name='pxb'/> + <flag name='drive-detect-zeroes'/> </qemuCaps> diff --git a/tests/qemucapabilitiesdata/caps_2.6.0-1.caps b/tests/qemucapabilitiesdata/caps_2.6.0-1.caps index e243f8a92f0b..11b087a3eeb1 100644 --- a/tests/qemucapabilitiesdata/caps_2.6.0-1.caps +++ b/tests/qemucapabilitiesdata/caps_2.6.0-1.caps @@ -180,4 +180,5 @@ <flag name='secret'/> <flag name='pxb'/> <flag name='pxb-pcie'/> + <flag name='drive-detect-zeroes'/> </qemuCaps> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.args b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.args new file mode 100644 index 000000000000..b19dfb7a8387 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-drive-detect-zeroes.args @@ -0,0 +1,27 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu \ +-name test \ +-S \ +-M pc-0.13 \ +-m 1024 \ +-smp 1 \ +-uuid 92d7a226-cfae-425b-a6d3-00bbf9ec5c9e \ +-nographic \ +-nodefaults \ +-monitor unix:/tmp/lib/domain--1-test/monitor.sock,server,nowait \ +-no-acpi \ +-boot dc \ +-usb \ +-drive file=/var/lib/libvirt/images/f14.img,format=qcow2,if=none,\ +id=drive-virtio-disk0,discard=unmap,detect_zeroes=unmap \ +-device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,\ +id=virtio-disk0 \ +-drive file=/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso,format=raw,if=none,\ +media=cdrom,id=drive-ide0-1-0,discard=ignore,detect_zeroes=off \ +-device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 8842b2fb268e..e713e550c1c3 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -854,6 +854,9 @@ mymain(void) QEMU_CAPS_VIRTIO_BLK_SCSI, QEMU_CAPS_VIRTIO_BLK_SG_IO); DO_TEST("disk-drive-discard", QEMU_CAPS_DRIVE_DISCARD); + DO_TEST("disk-drive-detect-zeroes", + QEMU_CAPS_DRIVE_DISCARD, + QEMU_CAPS_DRIVE_DETECT_ZEROES); DO_TEST("disk-snapshot", NONE); DO_TEST_FAILURE("disk-same-targets", QEMU_CAPS_SCSI_LSI, -- 2.8.1
participants (2)
-
Martin Kletzander -
Peter Krempa