Re: [libvirt] [PATCH v5 10/11] nvdimm: qemu command-line generating for unarmed property

According to the result parsing from xml, add unarmed property into QEMU command line: -device nvdimm,...[,unarmed=on/off] Signed-off-by: Luyao Zhong <luyao.zhong(a)intel.com&gt; --- src/qemu/qemu_command.c | 16 ++++++++-- src/qemu/qemu_command.h | 3 +- src/qemu/qemu_hotplug.c | 2 +- ...mory-hotplug-nvdimm-readonly.x86_64-latest.args | 36 ++++++++++++++++++++++ tests/qemuxml2argvtest.c | 1 + 5 files changed, 54 insertions(+), 4 deletions(-) create mode 100644 tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 6a06161..1de3d07 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -3567,7 +3567,8 @@ qemuBuildMemoryDimmBackendStr(virBufferPtr buf, char * -qemuBuildMemoryDeviceStr(virDomainMemoryDefPtr mem) +qemuBuildMemoryDeviceStr(virDomainMemoryDefPtr mem, + qemuDomainObjPrivatePtr priv) { virBuffer buf = VIR_BUFFER_INITIALIZER; const char *device; @@ -3595,6 +3596,17 @@ qemuBuildMemoryDeviceStr(virDomainMemoryDefPtr mem) if (mem->labelsize) virBufferAsprintf(&buf, "label-size=%llu,", mem->labelsize * 1024); + if (mem->readonly) { + if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE_NVDIMM_UNARMED)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Set readonly for nvdimm, but the corresponding unarmed" + "property is not available with this QEMU binary"));

+ return NULL; + } + virBufferAsprintf(&buf, "unarmed=%s,", + mem->readonly ? "on" : "off"); + } + virBufferAsprintf(&buf, "memdev=mem%s,id=%s", mem->info.alias, mem->info.alias); @@ -7894,7 +7906,7 @@ qemuBuildMemoryDeviceCommandLine(virCommandPtr cmd, virCommandAddArg(cmd, "-object"); virCommandAddArgBuffer(cmd, &buf); - if (!(dimmStr = qemuBuildMemoryDeviceStr(def->mems[i]))) + if (!(dimmStr = qemuBuildMemoryDeviceStr(def->mems[i], priv))) return -1; virCommandAddArgList(cmd, "-device", dimmStr, NULL); diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h index 4647260..1a4f1f5 100644 --- a/src/qemu/qemu_command.h +++ b/src/qemu/qemu_command.h @@ -128,7 +128,8 @@ int qemuBuildMemoryBackendProps(virJSONValuePtr *backendProps, virDomainMemoryDefPtr mem, bool force); -char *qemuBuildMemoryDeviceStr(virDomainMemoryDefPtr mem); +char *qemuBuildMemoryDeviceStr(virDomainMemoryDefPtr mem, + qemuDomainObjPrivatePtr priv); /* Current, best practice */ char *qemuBuildPCIHostdevDevStr(const virDomainDef *def, diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index 8da0233..a1c3ca9 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -2563,7 +2563,7 @@ qemuDomainAttachMemory(virQEMUDriverPtr driver, if (virAsprintf(&objalias, "mem%s", mem->info.alias) < 0) goto cleanup; - if (!(devstr = qemuBuildMemoryDeviceStr(mem))) + if (!(devstr = qemuBuildMemoryDeviceStr(mem, priv))) goto cleanup; if (qemuBuildMemoryBackendProps(&props, objalias, cfg, diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args new file mode 100644 index 0000000..783d16b --- /dev/null +++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args @@ -0,0 +1,36 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-i686 \ +-name guest=QEMUGuest1,debug-threads=on \ +-S \ +-object secret,id=masterKey0,format=raw,\ +file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ +-machine pc,accel=tcg,usb=off,dump-guest-core=off,nvdimm=on \ +-m size=219136k,slots=16,maxmem=1099511627776k \ +-realtime mlock=off \ +-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 \ +-device nvdimm,node=0,unarmed=on,memdev=memnvdimm0,id=nvdimm0,slot=0 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-display none \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,fd=1729,server,nowait \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-no-acpi \ +-boot strict=on \ +-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \ +-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \ +-device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \ +-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\ +resourcecontrol=deny \ +-msg timestamp=on diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index a55b5ff..2cb8860 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -2760,6 +2760,7 @@ mymain(void) DO_TEST_CAPS_LATEST("memory-hotplug-nvdimm-label"); DO_TEST_CAPS_LATEST("memory-hotplug-nvdimm-align"); DO_TEST_CAPS_LATEST("memory-hotplug-nvdimm-pmem"); + DO_TEST_CAPS_LATEST("memory-hotplug-nvdimm-readonly"); DO_TEST("machine-aeskeywrap-on-caps", QEMU_CAPS_AES_KEY_WRAP,