[libvirt][PATCH v15 5/9] conf: Introduce SGX EPC element into device memory xml
Lin Yang
lin.a.yang at intel.com
Wed Aug 31 07:40:37 UTC 2022
With NUMA config:
<devices>
...
<memory model='sgx-epc'>
<source>
<nodemask>0-1</nodemask>
</source>
<target>
<size unit='KiB'>512</size>
<node>0</node>
</target>
</memory>
...
</devices>
Without NUMA config:
<devices>
...
<memory model='sgx-epc'>
<target>
<size unit='KiB'>512</size>
</target>
</memory>
...
</devices>
Signed-off-by: Lin Yang <lin.a.yang at intel.com>
Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
Signed-off-by: Haibin Huang <haibin.huang at intel.com>
---
docs/formatdomain.rst | 25 +++++++-
src/conf/domain_conf.c | 30 +++++++++
src/conf/domain_conf.h | 1 +
src/conf/domain_postparse.c | 1 +
src/conf/domain_validate.c | 9 +++
src/conf/schemas/domaincommon.rng | 1 +
src/qemu/qemu_alias.c | 3 +
src/qemu/qemu_command.c | 1 +
src/qemu/qemu_domain.c | 48 ++++++++++----
src/qemu/qemu_domain_address.c | 6 ++
src/qemu/qemu_driver.c | 1 +
src/qemu/qemu_process.c | 2 +
src/qemu/qemu_validate.c | 8 +++
src/security/security_apparmor.c | 1 +
src/security/security_dac.c | 2 +
src/security/security_selinux.c | 2 +
tests/qemuxml2argvdata/sgx-epc.xml | 64 +++++++++++++++++++
.../sgx-epc.x86_64-7.0.0.xml | 1 +
tests/qemuxml2xmltest.c | 2 +
19 files changed, 193 insertions(+), 15 deletions(-)
create mode 100644 tests/qemuxml2argvdata/sgx-epc.xml
create mode 120000 tests/qemuxml2xmloutdata/sgx-epc.x86_64-7.0.0.xml
diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst
index ed0d9c1959..ed21d565d5 100644
--- a/docs/formatdomain.rst
+++ b/docs/formatdomain.rst
@@ -7987,6 +7987,20 @@ Example: usage of the memory devices
<current unit='KiB'>524288</current>
</target>
</memory>
+ <memory model='sgx-epc'>
+ <source>
+ <nodemask>0-1</nodemask>
+ </source>
+ <target>
+ <size unit='KiB'>16384</size>
+ <node>0</node>
+ </target>
+ </memory>
+ <memory model='sgx-epc'>
+ <target>
+ <size unit='KiB'>16384</size>
+ </target>
+ </memory>
</devices>
...
@@ -7995,7 +8009,9 @@ Example: usage of the memory devices
1.2.14` Provide ``nvdimm`` model that adds a Non-Volatile DIMM module.
:since:`Since 3.2.0` Provide ``virtio-pmem`` model to add a paravirtualized
persistent memory device. :since:`Since 7.1.0` Provide ``virtio-mem`` model
- to add paravirtualized memory device. :since:`Since 7.9.0`
+ to add paravirtualized memory device. :since:`Since 7.9.0` Provide
+ ``sgx-epc`` model to add a SGX enclave page cache (EPC) memory to the guest.
+ :since:`Since 8.7.0 and QEMU 6.2.0`
``access``
An optional attribute ``access`` ( :since:`since 3.2.0` ) that provides
@@ -8055,6 +8071,13 @@ Example: usage of the memory devices
Represents a path in the host that backs the virtio memory module in the
guest. It is mandatory.
+ For model ``sgx-epc`` this element is optional. The following optional
+ elements may be used:
+
+ ``nodemask``
+ This element can be used to override the default set of NUMA nodes where
+ the memory would be allocated. :since:`Since 8.7.0 and QEMU 7.0.0`
+
``target``
The mandatory ``target`` element configures the placement and sizing of the
added memory from the perspective of the guest.
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 7764b1054d..bdba385198 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -1441,6 +1441,7 @@ VIR_ENUM_IMPL(virDomainMemoryModel,
"nvdimm",
"virtio-pmem",
"virtio-mem",
+ "sgx-epc",
);
VIR_ENUM_IMPL(virDomainShmemModel,
@@ -13292,6 +13293,20 @@ virDomainMemorySourceDefParseXML(xmlNodePtr node,
def->nvdimmPath = virXPathString("string(./path)", ctxt);
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
+ if ((nodemask = virXPathString("string(./nodemask)", ctxt))) {
+ if (virBitmapParse(nodemask, &def->sourceNodes,
+ VIR_DOMAIN_CPUMASK_LEN) < 0)
+ return -1;
+
+ if (virBitmapIsAllClear(def->sourceNodes)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("Invalid value of 'nodemask': %s"), nodemask);
+ return -1;
+ }
+ }
+ break;
+
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
@@ -13360,6 +13375,7 @@ virDomainMemoryTargetDefParseXML(xmlNodePtr node,
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
}
@@ -15156,6 +15172,11 @@ virDomainMemoryFindByDefInternal(virDomainDef *def,
continue;
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
+ if (!virBitmapEqual(tmp->sourceNodes, mem->sourceNodes))
+ continue;
+ break;
+
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
@@ -24770,6 +24791,15 @@ virDomainMemorySourceDefFormat(virBuffer *buf,
virBufferEscapeString(&childBuf, "<path>%s</path>\n", def->nvdimmPath);
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
+ if (def->sourceNodes) {
+ if (!(bitmap = virBitmapFormat(def->sourceNodes)))
+ return -1;
+
+ virBufferAsprintf(&childBuf, "<nodemask>%s</nodemask>\n", bitmap);
+ }
+ break;
+
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 7b81acf5db..89324635f5 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2574,6 +2574,7 @@ typedef enum {
VIR_DOMAIN_MEMORY_MODEL_NVDIMM, /* nvdimm memory device */
VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM, /* virtio-pmem memory device */
VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM, /* virtio-mem memory device */
+ VIR_DOMAIN_MEMORY_MODEL_SGX_EPC, /* SGX enclave page cache */
VIR_DOMAIN_MEMORY_MODEL_LAST
} virDomainMemoryModel;
diff --git a/src/conf/domain_postparse.c b/src/conf/domain_postparse.c
index df59de2d0d..9a3e8f494c 100644
--- a/src/conf/domain_postparse.c
+++ b/src/conf/domain_postparse.c
@@ -645,6 +645,7 @@ virDomainMemoryDefPostParse(virDomainMemoryDef *mem,
break;
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
diff --git a/src/conf/domain_validate.c b/src/conf/domain_validate.c
index 1c78a3d31c..0e9a972c6f 100644
--- a/src/conf/domain_validate.c
+++ b/src/conf/domain_validate.c
@@ -2334,6 +2334,15 @@ virDomainMemoryDefValidate(const virDomainMemoryDef *mem,
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
+ if (mem->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("memory device address is not supported for model '%s'"),
+ virDomainMemoryModelTypeToString(mem->model));
+ return -1;
+ }
+ break;
+
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
default:
diff --git a/src/conf/schemas/domaincommon.rng b/src/conf/schemas/domaincommon.rng
index 5d530f957b..11033f7c5c 100644
--- a/src/conf/schemas/domaincommon.rng
+++ b/src/conf/schemas/domaincommon.rng
@@ -6845,6 +6845,7 @@
<value>nvdimm</value>
<value>virtio-pmem</value>
<value>virtio-mem</value>
+ <value>sgx-epc</value>
</choice>
</attribute>
<optional>
diff --git a/src/qemu/qemu_alias.c b/src/qemu/qemu_alias.c
index 835401dc07..6061dd3f02 100644
--- a/src/qemu/qemu_alias.c
+++ b/src/qemu/qemu_alias.c
@@ -513,6 +513,9 @@ qemuAssignDeviceMemoryAlias(virDomainDef *def,
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
prefix = "virtiomem";
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
+ prefix = "epc";
+ break;
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
default:
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 812176ab99..a1704b8a59 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -3613,6 +3613,7 @@ qemuBuildMemoryDeviceProps(virQEMUDriverConfig *cfg,
return NULL;
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
default:
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 9d5dd07958..b9560275dd 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -8272,6 +8272,7 @@ qemuDomainUpdateMemoryDeviceInfo(virDomainObj *vm,
break;
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
@@ -8953,6 +8954,12 @@ qemuDomainDefValidateMemoryHotplugDevice(const virDomainMemoryDef *mem,
}
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("hotplug is not supported for the %s device"),
+ virDomainMemoryModelTypeToString(mem->model));
+ return -1;
+
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
return -1;
@@ -8988,7 +8995,7 @@ int
qemuDomainDefValidateMemoryHotplug(const virDomainDef *def,
const virDomainMemoryDef *mem)
{
- unsigned int nmems = def->nmems;
+ unsigned int hotplugNum = 0;
unsigned long long hotplugSpace;
unsigned long long hotplugMemory = 0;
size_t i;
@@ -8996,15 +9003,37 @@ qemuDomainDefValidateMemoryHotplug(const virDomainDef *def,
hotplugSpace = def->mem.max_memory - virDomainDefGetMemoryInitial(def);
if (mem) {
- nmems++;
+ hotplugNum++;
hotplugMemory = mem->size;
if (qemuDomainDefValidateMemoryHotplugDevice(mem, def) < 0)
return -1;
}
+ for (i = 0; i < def->nmems; i++) {
+ switch (def->mems[i]->model) {
+ case VIR_DOMAIN_MEMORY_MODEL_DIMM:
+ case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
+ case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
+ case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ hotplugMemory += def->mems[i]->size;
+ hotplugNum++;
+ /* already existing devices don't need to be checked on hotplug */
+ if (!mem &&
+ qemuDomainDefValidateMemoryHotplugDevice(def->mems[i], def) < 0)
+ return -1;
+ break;
+
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
+ /* sgx epc memory does not support hotplug */
+ case VIR_DOMAIN_MEMORY_MODEL_LAST:
+ case VIR_DOMAIN_MEMORY_MODEL_NONE:
+ break;
+ }
+ }
+
if (!virDomainDefHasMemoryHotplug(def)) {
- if (nmems) {
+ if (hotplugNum) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("cannot use/hotplug a memory device when domain "
"'maxMemory' is not defined"));
@@ -9027,22 +9056,13 @@ qemuDomainDefValidateMemoryHotplug(const virDomainDef *def,
}
}
- if (nmems > def->mem.memory_slots) {
+ if (hotplugNum > def->mem.memory_slots) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("memory device count '%u' exceeds slots count '%u'"),
- nmems, def->mem.memory_slots);
+ hotplugNum, def->mem.memory_slots);
return -1;
}
- for (i = 0; i < def->nmems; i++) {
- hotplugMemory += def->mems[i]->size;
-
- /* already existing devices don't need to be checked on hotplug */
- if (!mem &&
- qemuDomainDefValidateMemoryHotplugDevice(def->mems[i], def) < 0)
- return -1;
- }
-
if (hotplugMemory > hotplugSpace) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("memory device total size exceeds hotplug space"));
diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c
index 026be99ba9..08cc995bfa 100644
--- a/src/qemu/qemu_domain_address.c
+++ b/src/qemu/qemu_domain_address.c
@@ -389,6 +389,7 @@ qemuDomainPrimeVirtioDeviceAddresses(virDomainDef *def,
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
}
@@ -1039,6 +1040,7 @@ qemuDomainDeviceCalculatePCIConnectFlags(virDomainDeviceDef *dev,
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
return 0;
}
@@ -2421,6 +2423,7 @@ qemuDomainAssignDevicePCISlots(virDomainDef *def,
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
}
@@ -3081,6 +3084,7 @@ qemuDomainAssignMemoryDeviceSlot(virDomainObj *vm,
return qemuDomainEnsurePCIAddress(vm, &dev);
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
@@ -3107,6 +3111,7 @@ qemuDomainReleaseMemoryDeviceSlot(virDomainObj *vm,
qemuDomainReleaseDeviceAddress(vm, &mem->info);
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
@@ -3140,6 +3145,7 @@ qemuDomainAssignMemorySlots(virDomainDef *def)
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
/* handled in qemuDomainAssignPCIAddresses() */
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 333225dd21..22c611fa91 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -7097,6 +7097,7 @@ qemuDomainChangeMemoryLiveValidateChange(const virDomainMemoryDef *oldDef,
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot modify memory of model '%s'"),
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index cfcf879f59..bb659ec6eb 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -3871,6 +3871,7 @@ qemuProcessDomainMemoryDefNeedHugepagesPath(const virDomainMemoryDef *mem,
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
/* None of these can be backed by hugepages. */
return false;
@@ -3945,6 +3946,7 @@ qemuProcessNeedMemoryBackingPath(virDomainDef *def,
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_PMEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
/* Backed by user provided path. Not stored in memory
* backing dir anyway. */
diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c
index 6e457f3814..cf075f1ff5 100644
--- a/src/qemu/qemu_validate.c
+++ b/src/qemu/qemu_validate.c
@@ -5186,6 +5186,14 @@ qemuValidateDomainDeviceDefMemory(virDomainMemoryDef *mem,
}
break;
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
+ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SGX_EPC)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("sgx epc isn't supported by this QEMU binary"));
+ return -1;
+ }
+ break;
+
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
diff --git a/src/security/security_apparmor.c b/src/security/security_apparmor.c
index 008384dee8..36e8ce42b5 100644
--- a/src/security/security_apparmor.c
+++ b/src/security/security_apparmor.c
@@ -687,6 +687,7 @@ AppArmorSetMemoryLabel(virSecurityManager *mgr,
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
}
diff --git a/src/security/security_dac.c b/src/security/security_dac.c
index 21cebae694..d94995c9cf 100644
--- a/src/security/security_dac.c
+++ b/src/security/security_dac.c
@@ -1853,6 +1853,7 @@ virSecurityDACRestoreMemoryLabel(virSecurityManager *mgr,
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
ret = 0;
@@ -2040,6 +2041,7 @@ virSecurityDACSetMemoryLabel(virSecurityManager *mgr,
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
ret = 0;
diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
index 9f2872decc..98044d1847 100644
--- a/src/security/security_selinux.c
+++ b/src/security/security_selinux.c
@@ -1580,6 +1580,7 @@ virSecuritySELinuxSetMemoryLabel(virSecurityManager *mgr,
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
}
@@ -1608,6 +1609,7 @@ virSecuritySELinuxRestoreMemoryLabel(virSecurityManager *mgr,
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_VIRTIO_MEM:
+ case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
ret = 0;
diff --git a/tests/qemuxml2argvdata/sgx-epc.xml b/tests/qemuxml2argvdata/sgx-epc.xml
new file mode 100644
index 0000000000..62212f3401
--- /dev/null
+++ b/tests/qemuxml2argvdata/sgx-epc.xml
@@ -0,0 +1,64 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>2</vcpu>
+ <os>
+ <type arch='x86_64' machine='pc-q35-7.0'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <cpu mode='custom' match='exact' check='none'>
+ <model fallback='forbid'>qemu64</model>
+ <numa>
+ <cell id='0' cpus='0' memory='109550' unit='KiB'/>
+ <cell id='1' cpus='1' memory='109550' 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-x86_64</emulator>
+ <controller type='pci' index='0' model='pcie-root'/>
+ <controller type='pci' index='1' model='pcie-root-port'>
+ <model name='pcie-root-port'/>
+ <target chassis='1' port='0x8'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' multifunction='on'/>
+ </controller>
+ <controller type='pci' index='2' model='pcie-root-port'>
+ <model name='pcie-root-port'/>
+ <target chassis='2' port='0x9'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+ </controller>
+ <controller type='usb' index='0' model='none'/>
+ <controller type='sata' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
+ </controller>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <audio id='1' type='none'/>
+ <memballoon model='virtio'>
+ <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
+ </memballoon>
+ <memory model='sgx-epc'>
+ <source>
+ <nodemask>0-1</nodemask>
+ </source>
+ <target>
+ <size unit='KiB'>65536</size>
+ <node>0</node>
+ </target>
+ </memory>
+ <memory model='sgx-epc'>
+ <source>
+ <nodemask>2-3</nodemask>
+ </source>
+ <target>
+ <size unit='KiB'>16384</size>
+ <node>1</node>
+ </target>
+ </memory>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2xmloutdata/sgx-epc.x86_64-7.0.0.xml b/tests/qemuxml2xmloutdata/sgx-epc.x86_64-7.0.0.xml
new file mode 120000
index 0000000000..cc2263ac99
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/sgx-epc.x86_64-7.0.0.xml
@@ -0,0 +1 @@
+../qemuxml2argvdata/sgx-epc.xml
\ No newline at end of file
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index af0e2c930f..1754537db8 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -1452,6 +1452,8 @@ mymain(void)
DO_TEST_CAPS_LATEST("channel-qemu-vdagent");
DO_TEST_CAPS_LATEST("channel-qemu-vdagent-features");
+ DO_TEST_CAPS_VER("sgx-epc", "7.0.0");
+
cleanup:
if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
virFileDeleteTree(fakerootdir);
--
2.25.1
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