[libvirt] [RFC 2/3] xml: update xml parsing and formating about NVDIMM memory
Luyao Zhong
luyao.zhong at intel.com
Wed Oct 17 02:21:44 UTC 2018
Four new parameters were introduced into libvirt xml, including
'align', 'pmem', 'persistence' and 'unarmed', which are related to
NVDIMM memory device. So we need parse and format the xml to save
these configurations.Besides, more testcases related to these
parameters were added to verify the xml2xml process.
Signed-off-by: Zhong,Luyao <luyao.zhong at intel.com>
---
src/conf/domain_conf.c | 115 +++++++++++++++++++--
src/conf/domain_conf.h | 14 +++
src/libvirt_private.syms | 2 +
.../memory-hotplug-nvdimm-align.xml | 1 +
.../memory-hotplug-nvdimm-persistence.xml | 1 +
.../memory-hotplug-nvdimm-pmem.xml | 1 +
.../memory-hotplug-nvdimm-unarmed.xml | 1 +
tests/qemuxml2xmltest.c | 4 +
8 files changed, 132 insertions(+), 7 deletions(-)
create mode 120000 tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-align.xml
create mode 120000 tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-persistence.xml
create mode 120000 tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-pmem.xml
create mode 120000 tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-unarmed.xml
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 9911d56..1326116 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -932,6 +932,12 @@ VIR_ENUM_IMPL(virDomainMemoryModel,
"dimm",
"nvdimm")
+VIR_ENUM_IMPL(virDomainMemoryPersistence,
+ VIR_DOMAIN_MEMORY_PERSISTENCE_LAST,
+ "",
+ "mem-ctrl",
+ "cpu")
+
VIR_ENUM_IMPL(virDomainShmemModel, VIR_DOMAIN_SHMEM_MODEL_LAST,
"ivshmem",
"ivshmem-plain",
@@ -15656,7 +15662,9 @@ virDomainMemorySourceDefParseXML(xmlNodePtr node,
virDomainMemoryDefPtr def)
{
int ret = -1;
+ int val;
char *nodemask = NULL;
+ char *ndPmem = NULL;
xmlNodePtr save = ctxt->node;
ctxt->node = node;
@@ -15685,6 +15693,21 @@ virDomainMemorySourceDefParseXML(xmlNodePtr node,
_("path is required for model 'nvdimm'"));
goto cleanup;
}
+
+ if (virDomainParseMemory("./alignsize", "./alignsize/@unit", ctxt,
+ &def->alignsize, false, false) < 0)
+ goto cleanup;
+
+ if ((ndPmem = virXPathString("string(./pmem)", ctxt))) {
+ if ((val = virTristateSwitchTypeFromString(ndPmem)) < 0) {
+ virReportError(VIR_ERR_XML_DETAIL,
+ _("Invalid value of nvdimm 'pmem': %s"),
+ ndPmem);
+ goto cleanup;
+ }
+ def->nvdimmPmem = val;
+ }
+ VIR_FREE(ndPmem);
break;
case VIR_DOMAIN_MEMORY_MODEL_NONE:
@@ -15696,6 +15719,7 @@ virDomainMemorySourceDefParseXML(xmlNodePtr node,
cleanup:
VIR_FREE(nodemask);
+ VIR_FREE(ndPmem);
ctxt->node = save;
return ret;
}
@@ -15710,6 +15734,9 @@ virDomainMemoryTargetDefParseXML(xmlNodePtr node,
xmlNodePtr save = ctxt->node;
ctxt->node = node;
int rv;
+ int val;
+ char *ndPrst = NULL;
+ char *ndUnarmed = NULL;
/* initialize to value which marks that the user didn't specify it */
def->targetNode = -1;
@@ -15741,11 +15768,35 @@ virDomainMemoryTargetDefParseXML(xmlNodePtr node,
_("label size must be smaller than NVDIMM size"));
goto cleanup;
}
+
+ if ((ndPrst = virXPathString("string(./persistence)", ctxt))) {
+ if ((val = virDomainMemoryPersistenceTypeFromString(ndPrst)) < 0) {
+ virReportError(VIR_ERR_XML_DETAIL,
+ _("Invalid value of nvdimm 'persistence': %s"),
+ ndPrst);
+ goto cleanup;
+ }
+ def->nvdimmPersistence = val;
+ }
+ VIR_FREE(ndPrst);
+
+ if ((ndUnarmed = virXPathString("string(./unarmed)", ctxt))) {
+ if ((val = virTristateSwitchTypeFromString(ndUnarmed)) < 0) {
+ virReportError(VIR_ERR_XML_DETAIL,
+ _("Invalid value of nvdimm 'unarmed': %s"),
+ ndUnarmed);
+ goto cleanup;
+ }
+ def->nvdimmUnarmed = val;
+ }
+ VIR_FREE(ndUnarmed);
}
ret = 0;
cleanup:
+ VIR_FREE(ndPrst);
+ VIR_FREE(ndUnarmed);
ctxt->node = save;
return ret;
}
@@ -22447,13 +22498,49 @@ virDomainMemoryDefCheckABIStability(virDomainMemoryDefPtr src,
return false;
}
- if (src->model == VIR_DOMAIN_MEMORY_MODEL_NVDIMM &&
- src->labelsize != dst->labelsize) {
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("Target NVDIMM label size '%llu' doesn't match "
- "source NVDIMM label size '%llu'"),
- src->labelsize, dst->labelsize);
- return false;
+ if (src->model == VIR_DOMAIN_MEMORY_MODEL_NVDIMM) {
+ if (src->labelsize != dst->labelsize) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("Target NVDIMM label size '%llu' doesn't match "
+ "source NVDIMM label size '%llu'"),
+ src->labelsize, dst->labelsize);
+ return false;
+ }
+
+ if (src->alignsize != dst->alignsize) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("Target NVDIMM alignment '%llu' doesn't match "
+ "source NVDIMM alignment '%llu'"),
+ src->alignsize, dst->alignsize);
+ return false;
+ }
+
+ if (src->nvdimmPmem != dst->nvdimmPmem) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("Target NVDIMM pmem flag '%s' doesn't match "
+ "source NVDIMM pmem flag '%s'"),
+ virTristateSwitchTypeToString(src->nvdimmPmem),
+ virTristateSwitchTypeToString(dst->nvdimmPmem));
+ return false;
+ }
+
+ if (src->nvdimmPersistence != dst->nvdimmPersistence) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("Target NVDIMM persistence value '%s' doesn't match "
+ "source NVDIMM persistence value '%s'"),
+ virDomainMemoryPersistenceTypeToString(src->nvdimmPersistence),
+ virDomainMemoryPersistenceTypeToString(dst->nvdimmPersistence));
+ return false;
+ }
+
+ if (src->nvdimmUnarmed != dst->nvdimmUnarmed) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("Target NVDIMM unarmed flag '%s' doesn't match "
+ "source NVDIMM unarmed flag '%s'"),
+ virTristateSwitchTypeToString(src->nvdimmUnarmed),
+ virTristateSwitchTypeToString(dst->nvdimmUnarmed));
+ return false;
+ }
}
return virDomainDeviceInfoCheckABIStability(&src->info, &dst->info);
@@ -25939,6 +26026,14 @@ virDomainMemorySourceDefFormat(virBufferPtr buf,
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
virBufferEscapeString(buf, "<path>%s</path>\n", def->nvdimmPath);
+
+ if (def->alignsize)
+ virBufferAsprintf(buf, "<alignsize unit='KiB'>%llu</alignsize>\n",
+ def->alignsize);
+
+ if (def->nvdimmPmem)
+ virBufferEscapeString(buf, "<pmem>%s</pmem>\n",
+ virTristateSwitchTypeToString(def->nvdimmPmem));
break;
case VIR_DOMAIN_MEMORY_MODEL_NONE:
@@ -25974,6 +26069,12 @@ virDomainMemoryTargetDefFormat(virBufferPtr buf,
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</label>\n");
}
+ if (def->nvdimmPersistence)
+ virBufferEscapeString(buf, "<persistence>%s</persistence>\n",
+ virDomainMemoryPersistenceTypeToString(def->nvdimmPersistence));
+ if (def->nvdimmUnarmed)
+ virBufferEscapeString(buf, "<unarmed>%s</unarmed>\n",
+ virTristateSwitchTypeToString(def->nvdimmUnarmed));
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</target>\n");
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index e30a4b2..057aaea 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2133,6 +2133,14 @@ typedef enum {
VIR_DOMAIN_MEMORY_MODEL_LAST
} virDomainMemoryModel;
+typedef enum {
+ VIR_DOMAIN_MEMORY_PERSISTENCE_NONE,
+ VIR_DOMAIN_MEMORY_PERSISTENCE_MEMCTRL,
+ VIR_DOMAIN_MEMORY_PERSISTENCE_CPU,
+
+ VIR_DOMAIN_MEMORY_PERSISTENCE_LAST,
+} virDomainMemoryPersistence;
+
struct _virDomainMemoryDef {
virDomainMemoryAccess access;
virTristateBool discard;
@@ -2141,12 +2149,17 @@ struct _virDomainMemoryDef {
virBitmapPtr sourceNodes;
unsigned long long pagesize; /* kibibytes */
char *nvdimmPath;
+ unsigned long long alignsize; /* kibibytes; valid only for NVDIMM */
+ int nvdimmPmem; /* enum virTristateSwitch; valid only for NVDIMM */
/* target */
int model; /* virDomainMemoryModel */
int targetNode;
unsigned long long size; /* kibibytes */
unsigned long long labelsize; /* kibibytes; valid only for NVDIMM */
+ int nvdimmPersistence; /* enum virDomainMemoryPersistence;
+ valid only for NVDIMM*/
+ int nvdimmUnarmed; /* enum virTristateSwitch; valid only for NVDIMM */
virDomainDeviceInfo info;
};
@@ -3448,6 +3461,7 @@ VIR_ENUM_DECL(virDomainTPMVersion)
VIR_ENUM_DECL(virDomainMemoryModel)
VIR_ENUM_DECL(virDomainMemoryBackingModel)
VIR_ENUM_DECL(virDomainMemorySource)
+VIR_ENUM_DECL(virDomainMemoryPersistence)
VIR_ENUM_DECL(virDomainMemoryAllocation)
VIR_ENUM_DECL(virDomainIOMMUModel)
VIR_ENUM_DECL(virDomainVsockModel)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 9236391..e925f7b 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -436,6 +436,8 @@ virDomainMemoryFindByDef;
virDomainMemoryFindInactiveByDef;
virDomainMemoryInsert;
virDomainMemoryModelTypeToString;
+virDomainMemoryPersistenceTypeFromString;
+virDomainMemoryPersistenceTypeToString;
virDomainMemoryRemove;
virDomainMemorySourceTypeFromString;
virDomainMemorySourceTypeToString;
diff --git a/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-align.xml b/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-align.xml
new file mode 120000
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/qemuxml2xmloutdata/memory-hotplug-nvdimm-persistence.xml b/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-persistence.xml
new file mode 120000
index 0000000..0c0de1b
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-persistence.xml
@@ -0,0 +1 @@
+../qemuxml2argvdata/memory-hotplug-nvdimm-persistence.xml
\ No newline at end of file
diff --git a/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-pmem.xml b/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-pmem.xml
new file mode 120000
index 0000000..3e57c1e
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-pmem.xml
@@ -0,0 +1 @@
+../qemuxml2argvdata/memory-hotplug-nvdimm-pmem.xml
\ No newline at end of file
diff --git a/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-unarmed.xml b/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-unarmed.xml
new file mode 120000
index 0000000..1793347
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/memory-hotplug-nvdimm-unarmed.xml
@@ -0,0 +1 @@
+../qemuxml2argvdata/memory-hotplug-nvdimm-unarmed.xml
\ No newline at end of file
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 89640f6..4a931f2 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -1089,6 +1089,10 @@ 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("memory-hotplug-nvdimm-pmem", NONE);
+ DO_TEST("memory-hotplug-nvdimm-persistence", NONE);
+ DO_TEST("memory-hotplug-nvdimm-unarmed", NONE);
DO_TEST("net-udp", NONE);
DO_TEST("video-virtio-gpu-device", NONE);
--
2.7.4
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