[libvirt][PATCH v13 6/6] qemu: Add command-line to generate SGX EPC memory backend

According to the result parsing from xml, add the argument of SGX EPC memory backend into QEMU command line. With NUMA config: #qemu-system-x86_64 \ ...... \ -object '{"qom-type":"memory-backend-epc","id":"memepc0","prealloc":true,"size":67108864,"host-nodes":[0,1],"policy":"bind"}' \ -object '{"qom-type":"memory-backend-epc","id":"memepc1","prealloc":true,"size":16777216,"host-nodes":[2,3],"policy":"bind"}' \ -machine sgx-epc.0.memdev=memepc0,sgx-epc.0.node=0,sgx-epc.1.memdev=memepc1,sgx-epc.1.node=1 Without NUMA config: #qemu-system-x86_64 \ ...... \ -object '{"qom-type":"memory-backend-epc","id":"memepc0","prealloc":true,"size":67108864}' \ -object '{"qom-type":"memory-backend-epc","id":"memepc1","prealloc":true,"size":16777216}' \ -machine sgx-epc.0.memdev=memepc0,sgx-epc.1.memdev=memepc1 Signed-off-by: Lin Yang <lin.a.yang(a)intel.com&gt; Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; Signed-off-by: Haibin Huang <haibin.huang(a)intel.com&gt; --- src/qemu/qemu_alias.c | 3 +- src/qemu/qemu_command.c | 86 ++++++++++++++++++- src/qemu/qemu_monitor_json.c | 41 +++++++-- .../sgx-epc-numa.x86_64-latest.args | 40 +++++++++ .../sgx-epc.x86_64-6.2.0.args | 37 ++++++++ tests/qemuxml2argvtest.c | 3 + 6 files changed, 198 insertions(+), 12 deletions(-) create mode 100644 tests/qemuxml2argvdata/sgx-epc-numa.x86_64-latest.args create mode 100644 tests/qemuxml2argvdata/sgx-epc.x86_64-6.2.0.args diff --git a/src/qemu/qemu_alias.c b/src/qemu/qemu_alias.c index 5ebeb82f92..7482ea3cc8 100644 --- a/src/qemu/qemu_alias.c +++ b/src/qemu/qemu_alias.c @@ -466,7 +466,8 @@ qemuDeviceMemoryGetAliasID(virDomainDef *def, * valid */ if (!oldAlias && mem->model != VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM && - mem->model != VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM) + mem->model != VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM && + mem->model != VIR_DOMAIN_MEMORY_MODEL_SGX_EPC) return mem->info.addr.dimm.slot; for (i = 0; i < def->nmems; i++) { diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 7ca183ded7..fcfcc32df1 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -3743,6 +3743,10 @@ qemuBuildMemoryBackendProps(virJSONValue **backendProps, if (systemMemory) disableCanonicalPath = true; + } else if (mem->model == VIR_DOMAIN_MEMORY_MODEL_SGX_EPC) { + backendType = "memory-backend-epc"; + if (!priv->memPrealloc) + prealloc = true; } else if (useHugepage || mem->nvdimmPath || memAccess || def->mem.source == VIR_DOMAIN_MEMORY_SOURCE_FILE) { @@ -6955,6 +6959,9 @@ qemuBuildMachineCommandLine(virCommand *cmd, virCPUDef *cpu = def->cpu; g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER; size_t i; + virSGXCapabilityPtr sgxCaps = NULL; + int epcNum = 0; + int targetNode; virCommandAddArg(cmd, "-machine"); virBufferAdd(&buf, def->os.machine, -1); @@ -7176,6 +7183,61 @@ qemuBuildMachineCommandLine(virCommand *cmd, virBufferAddLit(&buf, ",graphics=off"); } + /* add sgx epc memory to -machine parameter */ + sgxCaps = virQEMUCapsGetSGXCapabilities(qemuCaps); + for (i = 0; i < def->nmems; i++) { + switch (def->mems[i]->model) { + case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC: + targetNode = def->mems[i]->targetNode; + + if (targetNode >= (int) virDomainNumaGetNodeCount(def->numa)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("can't add sgx epc for guest node '%d' as " + "the guest has only '%zu' NUMA nodes configured"), + targetNode, virDomainNumaGetNodeCount(def->numa)); + return -1; + } + + if (sgxCaps->nSections == 0) { + /* Assume QEMU cannot specify guest NUMA node for each SGX EPC, + * because it doesn't provide EPC NUMA info + */ + if (targetNode > 0) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("can't add SGX EPC for guest node '%d' because " + "this QEMU version didn't provide SGX EPC NUMA info"), + targetNode); + return -1; + } + + virBufferAsprintf(&buf, ",sgx-epc.%d.memdev=mem%s", epcNum, + def->mems[i]->info.alias); + } else if (sgxCaps->nSections > 0) { + /* The .node attribute is required since QEMU provide EPC NUMA info */ + if (targetNode < 0) + /* set NUMA target node to 0 by default if user doesn't + * specify it + */ + targetNode = 0; + + virBufferAsprintf(&buf, ",sgx-epc.%d.memdev=mem%s,sgx-epc.%d.node=%d", + epcNum, def->mems[i]->info.alias, epcNum, targetNode); + } + + epcNum++; + + break; + + case VIR_DOMAIN_MEMORY_MODEL_NVDIMM: + case VIR_DOMAIN_MEMORY_MODEL_DIMM: + case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM: + case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM: + case VIR_DOMAIN_MEMORY_MODEL_NONE: + case VIR_DOMAIN_MEMORY_MODEL_LAST: + break; + } + } + virCommandAddArgBuffer(cmd, &buf); return 0; @@ -7772,11 +7834,27 @@ qemuBuildMemoryDeviceCommandLine(virCommand *cmd, if (qemuBuildMemoryDimmBackendStr(cmd, def->mems[i], def, cfg, priv) < 0) return -1; - if (!(props = qemuBuildMemoryDeviceProps(cfg, priv, def, def->mems[i]))) - return -1; + switch (def->mems[i]->model) { + case VIR_DOMAIN_MEMORY_MODEL_NVDIMM: + case VIR_DOMAIN_MEMORY_MODEL_DIMM: + case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM: + case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM: + if (!(props = qemuBuildMemoryDeviceProps(cfg, priv, def, def->mems[i]))) + return -1; - if (qemuBuildDeviceCommandlineFromJSON(cmd, props, def, priv->qemuCaps) < 0) - return -1; + if (qemuBuildDeviceCommandlineFromJSON(cmd, props, def, priv->qemuCaps) < 0) + return -1; + + break; + + /* sgx epc memory will be added to -machine parameter, so skip here */ + case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC: + break; + + case VIR_DOMAIN_MEMORY_MODEL_NONE: + case VIR_DOMAIN_MEMORY_MODEL_LAST: + break; + } } return 0; diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index c900956f82..108643512c 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -7606,13 +7606,25 @@ qemuMonitorJSONGetMemoryDeviceInfo(qemuMonitor *mon, return -1; } - /* While 'id' attribute is marked as optional in QEMU's QAPI - * specification, Libvirt always sets it. Thus we can fail if not - * present. */ - if (!(devalias = virJSONValueObjectGetString(dimminfo, "id"))) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("dimm memory info data is missing 'id'")); - return -1; + if (STREQ(type, "dimm") || STREQ(type, "nvdimm") || STREQ(type, "virtio-mem")) { + /* While 'id' attribute is marked as optional in QEMU's QAPI + * specification, Libvirt always sets it. Thus we can fail if not + * present. */ + if (!(devalias = virJSONValueObjectGetString(dimminfo, "id"))) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("dimm memory info data is missing 'id'")); + return -1; + } + } else if (STREQ(type, "sgx-epc")) { + if (!(devalias = virJSONValueObjectGetString(dimminfo, "memdev"))) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("sgx-epc memory info data is missing 'memdev'")); + return -1; + } + } else { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("%s memory device info is not handled yet"), type); + return -1; } meminfo = g_new0(qemuMonitorMemoryDeviceInfo, 1); @@ -7656,6 +7668,21 @@ qemuMonitorJSONGetMemoryDeviceInfo(qemuMonitor *mon, _("malformed/missing size in virtio memory info")); return -1; } + } else if (STREQ(type, "sgx-epc")) { + /* sgx-epc memory devices */ + if (virJSONValueObjectGetNumberUlong(dimminfo, "memaddr", + &meminfo->address) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed/missing memaddr in sgx-epc memory info")); + return -1; + } + + if (virJSONValueObjectGetNumberUlong(dimminfo, "size", + &meminfo->size) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed/missing size in sgx-epc memory info")); + return -1; + } } else { /* type not handled yet */ continue; diff --git a/tests/qemuxml2argvdata/sgx-epc-numa.x86_64-latest.args b/tests/qemuxml2argvdata/sgx-epc-numa.x86_64-latest.args new file mode 100644 index 0000000000..59c1041679 --- /dev/null +++ b/tests/qemuxml2argvdata/sgx-epc-numa.x86_64-latest.args @@ -0,0 +1,40 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/tmp/lib/domain--1-QEMUGuest1 \ +USER=test \ +LOGNAME=test \ +XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \ +XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \ +XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \ +/usr/bin/qemu-system-x86_64 \ +-name guest=QEMUGuest1,debug-threads=on \ +-S \ +-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/tmp/lib/domain--1-QEMUGuest1/master-key.aes"}' \ +-machine q35,usb=off,dump-guest-core=off,sgx-epc.0.memdev=memepc0,sgx-epc.0.node=0,sgx-epc.1.memdev=memepc1,sgx-epc.1.node=1 \ +-accel tcg \ +-cpu qemu64 \ +-m 214 \ +-overcommit mem-lock=off \ +-smp 2,sockets=2,cores=1,threads=1 \ +-object '{"qom-type":"memory-backend-ram","id":"ram-node0","size":112197632}' \ +-numa node,nodeid=0,cpus=0,memdev=ram-node0 \ +-object '{"qom-type":"memory-backend-ram","id":"ram-node1","size":112197632}' \ +-numa node,nodeid=1,cpus=1,memdev=ram-node1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-display none \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-no-acpi \ +-boot strict=on \ +-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \ +-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \ +-object '{"qom-type":"memory-backend-epc","id":"memepc0","prealloc":true,"size":67108864,"host-nodes":[0,1],"policy":"bind"}' \ +-object '{"qom-type":"memory-backend-epc","id":"memepc1","prealloc":true,"size":16777216,"host-nodes":[2,3],"policy":"bind"}' \ +-audiodev '{"id":"audio1","driver":"none"}' \ +-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.1","addr":"0x0"}' \ +-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \ +-msg timestamp=on diff --git a/tests/qemuxml2argvdata/sgx-epc.x86_64-6.2.0.args b/tests/qemuxml2argvdata/sgx-epc.x86_64-6.2.0.args new file mode 100644 index 0000000000..56c476b777 --- /dev/null +++ b/tests/qemuxml2argvdata/sgx-epc.x86_64-6.2.0.args @@ -0,0 +1,37 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/tmp/lib/domain--1-QEMUGuest1 \ +USER=test \ +LOGNAME=test \ +XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \ +XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \ +XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \ +/usr/bin/qemu-system-x86_64 \ +-name guest=QEMUGuest1,debug-threads=on \ +-S \ +-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/tmp/lib/domain--1-QEMUGuest1/master-key.aes"}' \ +-machine pc-q35-6.2,usb=off,dump-guest-core=off,memory-backend=pc.ram,sgx-epc.0.memdev=memepc0,sgx-epc.1.memdev=memepc1 \ +-accel tcg \ +-cpu qemu64 \ +-m 134 \ +-object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":140509184}' \ +-overcommit mem-lock=off \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-display none \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-no-acpi \ +-boot strict=on \ +-device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \ +-device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \ +-object '{"qom-type":"memory-backend-epc","id":"memepc0","prealloc":true,"size":67108864}' \ +-object '{"qom-type":"memory-backend-epc","id":"memepc1","prealloc":true,"size":16777216}' \ +-audiodev '{"id":"audio1","driver":"none"}' \ +-device virtio-balloon-pci,id=balloon0,bus=pci.1,addr=0x0 \ +-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \ +-msg timestamp=on diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 48dd20458e..a2f488dff0 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -3461,6 +3461,9 @@ mymain(void) /* HVF guests should not work on Linux with KVM */ DO_TEST_CAPS_LATEST_PARSE_ERROR("hvf-x86_64-q35-headless"); + DO_TEST_CAPS_VER("sgx-epc", "6.2.0"); + DO_TEST_CAPS_LATEST("sgx-epc-numa"); + if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL) virFileDeleteTree(fakerootdir); -- 2.25.1