QEMU has add the 'align' option to 'memory-backend-file'. Expose this option to users by new element align. Signed-off-by: Jie Wang <wangjie88(a)huawei.com&gt; --- docs/formatdomain.html.in | 18 +++++++ docs/schemas/domaincommon.rng | 7 +++ src/conf/domain_conf.c | 14 +++++ src/conf/domain_conf.h | 1 + src/qemu/qemu_command.c | 4 ++ .../memory-hotplug-nvdimm-align.args | 31 +++++++++++ .../memory-hotplug-nvdimm-align.xml | 63 ++++++++++++++++++++++ tests/qemuxml2argvtest.c | 3 ++ .../memory-hotplug-nvdimm-align.xml | 1 + tests/qemuxml2xmltest.c | 1 + 10 files changed, 143 insertions(+) create mode 100644 tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.args create mode 100644 tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.xml create mode 100644 tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-align.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 0d0fd3b..29fe145 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -7932,6 +7932,9 @@ qemu-kvm -net nic,model=? /dev/null &lt;/target&gt; &lt;/memory&gt; &lt;memory model='nvdimm'&gt; + &lt;align&gt; + &lt;sieze unit='KiB'&gt;2048&lt;/size&gt; + &lt;/align&gt; &lt;source&gt; &lt;path&gt;/tmp/nvdimm&lt;/path&gt; &lt;/source&gt; @@ -7983,6 +7986,21 @@ qemu-kvm -net nic,model=? /dev/null </p> </dd> + <dt><code>align</code></dt> + <dd> + <p> + For NVDIMM type devices one can optionally use + <code>align</code> and its subelement <code>size</code> + to configure the size of alignment within the NVDIMM module. + The <code>size</code> element has usual meaning described + <a href="#elementsMemoryAllocation">here</a>. + For QEMU domains the following restrictions apply: + </p> + <ol> + <li>the alignment must be multiples of page size 4KiB,</li> + </ol> + </dd> + <dt><code>source</code></dt> <dd> <p> diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index 71ac3d0..9e994b1 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -5145,6 +5145,13 @@ <ref name="virYesNo"/> </attribute> </optional> + <optional> + <element name="align"> + <element name="size"> + <ref name="scaledInteger"/> + </element> + </element> + </optional> <interleave> <optional> <ref name="memorydev-source"/> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 3689ac0..bf91167 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -15739,6 +15739,12 @@ virDomainMemoryDefParseXML(virDomainXMLOptionPtr xmlopt, } VIR_FREE(tmp); + if ((node = virXPathNode("./align", ctxt))) { + if (virDomainParseMemory("./align/size", "./align/size/@unit", ctxt, + &def->align, true, false) < 0) + goto error; + } + /* source */ if ((node = virXPathNode("./source", ctxt)) && virDomainMemorySourceDefParseXML(node, ctxt, def) < 0) @@ -25334,6 +25340,14 @@ virDomainMemoryDefFormat(virBufferPtr buf, virBufferAddLit(buf, ">\n"); virBufferAdjustIndent(buf, 2); + if (def->align) { + virBufferAddLit(buf, "<align>\n"); + virBufferAdjustIndent(buf, 2); + virBufferAsprintf(buf, "<size unit='KiB'>%llu</size>\n", def->align); + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "</align>\n"); + } + if (virDomainMemorySourceDefFormat(buf, def) < 0) return -1; diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index a78fdee..1155c84 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -2107,6 +2107,7 @@ typedef enum { struct _virDomainMemoryDef { virDomainMemoryAccess access; virTristateBool discard; + unsigned long long align; /* source */ virBitmapPtr sourceNodes; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index c423733..5862457 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -3186,6 +3186,10 @@ qemuBuildMemoryBackendStr(virJSONValuePtr *backendProps, if (virJSONValueObjectAdd(props, "U:size", mem->size * 1024, NULL) < 0) goto cleanup; + if (mem->align && + virJSONValueObjectAdd(props, "u:align", mem->align * 1024, NULL) < 0) + goto cleanup; + if (mem->sourceNodes) { nodemask = mem->sourceNodes; } else { diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.args new file mode 100644 index 0000000..e6fcf58 --- /dev/null +++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.args @@ -0,0 +1,31 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-i686 \ +-name QEMUGuest1 \ +-S \ +-machine pc,accel=tcg,usb=off,dump-guest-core=off,nvdimm=on \ +-m size=219136k,slots=16,maxmem=1099511627776k \ +-smp 2,sockets=2,cores=1,threads=1 \ +-numa node,nodeid=0,cpus=0-1,mem=214 \ +-object memory-backend-file,id=memnvdimm0,prealloc=yes,mem-path=/tmp/nvdimm,\ +share=no,size=536870912,align=2097152 \ +-device nvdimm,node=0,label-size=131072,memdev=memnvdimm0,id=nvdimm0,slot=0 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-display none \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\ +server,nowait \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-no-acpi \ +-boot c \ +-usb \ +-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \ +-device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.xml b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.xml new file mode 100644 index 0000000..aa9e99b --- /dev/null +++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.xml @@ -0,0 +1,63 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <maxMemory slots='16' unit='KiB'>1099511627776</maxMemory> + <memory unit='KiB'>1267710</memory> + <currentMemory unit='KiB'>1267710</currentMemory> + <vcpu placement='static' cpuset='0-1'>2</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <idmap> + <uid start='0' target='1000' count='10'/> + <gid start='0' target='1000' count='10'/> + </idmap> + <cpu> + <topology sockets='2' cores='1' threads='1'/> + <numa> + <cell id='0' cpus='0-1' memory='219136' unit='KiB'/> + </numa> + </cpu> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu-system-i686</emulator> + <disk type='block' device='disk'> + <driver name='qemu' type='raw'/> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + <address type='drive' controller='0' bus='0' target='0' unit='0'/> + </disk> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + <controller type='usb' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> + </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> + <memory model='nvdimm' access='private'> + <align> + <size unit='KiB'>2048</size> + </align> + <source> + <path>/tmp/nvdimm</path> + </source> + <target> + <size unit='KiB'>523264</size> + <node>0</node> + <label> + <size unit='KiB'>128</size> + </label> + </target> + <address type='dimm' slot='0'/> + </memory> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 07e5ba1..4674ded 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -2588,6 +2588,9 @@ mymain(void) DO_TEST("memory-hotplug-nvdimm-label", QEMU_CAPS_DEVICE_NVDIMM, QEMU_CAPS_NUMA, QEMU_CAPS_OBJECT_MEMORY_RAM, QEMU_CAPS_OBJECT_MEMORY_FILE); + DO_TEST("memory-hotplug-nvdimm-align", + QEMU_CAPS_DEVICE_NVDIMM, + QEMU_CAPS_NUMA, QEMU_CAPS_OBJECT_MEMORY_RAM, QEMU_CAPS_OBJECT_MEMORY_FILE); DO_TEST("machine-aeskeywrap-on-caps", QEMU_CAPS_AES_KEY_WRAP, diff --git a/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-align.xml b/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-align.xml new file mode 100644 index 0000000..9fc6001 --- /dev/null +++ b/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-align.xml @@ -0,0 +1 @@ +../qemuxml2argvdata/memory-hotplug-nvdimm-align.xml \ No newline at end of file diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index 7cedc2b..822e98a 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -1098,6 +1098,7 @@ mymain(void) DO_TEST("memory-hotplug-nvdimm", NONE); DO_TEST("memory-hotplug-nvdimm-access", NONE); DO_TEST("memory-hotplug-nvdimm-label", NONE); + DO_TEST("memory-hotplug-nvdimm-align", NONE); DO_TEST("net-udp", NONE); DO_TEST("video-virtio-gpu-device", NONE);