query-cpu-model-expansion may report an array of deprecated properties.
This array is optional, and may not be supported for a particular
architecture or reported for a particular CPU model. If the output is
present, then capture it and store in a qemuMonitorCPUModelInfo struct
for later use.
The deprecated features will be retained in qemuCaps->kvm->hostCPU.info
and will be stored in the capabilities cache file under the <hostCPU>
element using the following format:
<deprecatedFeatures>
<property name='bpb'/>
<property name='csske'/>
<property name='cte'/>
<property name='te'/>
</deprecatedFeatures>
At this time the data is only queried, parsed, and cached. The data
will be utilized in a subsequent patch.
Signed-off-by: Collin Walling <walling@linux.ibm.com>
---
src/qemu/qemu_capabilities.c | 31 +++++++++++++++++++
src/qemu/qemu_monitor.c | 10 ++++++
src/qemu/qemu_monitor.h | 1 +
src/qemu/qemu_monitor_json.c | 18 +++++++++++
.../qemucapabilitiesdata/caps_9.1.0_s390x.xml | 6 ++++
.../qemucapabilitiesdata/caps_9.2.0_s390x.xml | 6 ++++
6 files changed, 72 insertions(+)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 5ac9f306f5..9fa868c8b7 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4015,6 +4015,7 @@ virQEMUCapsLoadHostCPUModelInfo(virQEMUCapsAccel *caps,
const char *typeStr)
{
xmlNodePtr hostCPUNode;
+ xmlNodePtr deprecated_props;
g_autofree xmlNodePtr *nodes = NULL;
VIR_XPATH_NODE_AUTORESTORE(ctxt)
g_autoptr(qemuMonitorCPUModelInfo) hostCPU = NULL;
@@ -4107,6 +4108,24 @@ virQEMUCapsLoadHostCPUModelInfo(virQEMUCapsAccel *caps,
}
}
+ ctxt->node = hostCPUNode;
+
+ if ((deprecated_props = virXPathNode("./deprecatedFeatures", ctxt))) {
+ g_autoptr(GPtrArray) props = virXMLNodeGetSubelementList(deprecated_props, NULL);
+
+ hostCPU->deprecated_props = g_new0(char *, props->len);
+
+ for (i = 0; i < props->len; i++) {
+ xmlNodePtr prop = g_ptr_array_index(props, i);
+
+ if (!(hostCPU->deprecated_props[i] = virXMLPropString(prop, "name"))) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("missing 'name' attribute for a host CPU model deprecated property in QEMU capabilities cache"));
+ return -1;
+ }
+ }
+ }
+
caps->hostCPU.info = g_steal_pointer(&hostCPU);
return 0;
}
@@ -4839,6 +4858,18 @@ virQEMUCapsFormatHostCPUModelInfo(virQEMUCapsAccel *caps,
virBufferAddLit(buf, "/>\n");
}
+ if (model->deprecated_props) {
+ virBufferAddLit(buf, "<deprecatedFeatures>\n");
+ virBufferAdjustIndent(buf, 2);
+
+ for (i = 0; i < g_strv_length(model->deprecated_props); i++)
+ virBufferAsprintf(buf, "<property name='%s'/>\n",
+ model->deprecated_props[i]);
+
+ virBufferAdjustIndent(buf, -2);
+ virBufferAddLit(buf, "</deprecatedFeatures>\n");
+ }
+
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</hostCPU>\n");
}
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index 73f37d26eb..94089e1c1c 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3306,6 +3306,7 @@ qemuMonitorCPUModelInfoFree(qemuMonitorCPUModelInfo *model_info)
g_free(model_info->props[i].value.string);
}
+ g_strfreev(model_info->deprecated_props);
g_free(model_info->props);
g_free(model_info->name);
g_free(model_info);
@@ -3350,6 +3351,15 @@ qemuMonitorCPUModelInfoCopy(const qemuMonitorCPUModelInfo *orig)
}
}
+ if (orig->deprecated_props) {
+ copy->deprecated_props = g_new0(char *,
+ g_strv_length(orig->deprecated_props));
+
+ for (i = 0; i < g_strv_length(orig->deprecated_props); i++) {
+ copy->deprecated_props[i] = g_strdup(orig->deprecated_props[i]);
+ }
+ }
+
return copy;
}
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 89a59dfd27..d4d9b98ba7 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -1150,6 +1150,7 @@ struct _qemuMonitorCPUModelInfo {
char *name;
size_t nprops;
qemuMonitorCPUProperty *props;
+ GStrv deprecated_props;
bool migratability;
};
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index fa8c5b1aea..6500e01d3f 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -5105,6 +5105,7 @@ qemuMonitorJSONParseCPUModelExpansionData(virJSONValue *data,
bool fail_no_props,
virJSONValue **cpu_model,
virJSONValue **cpu_props,
+ virJSONValue **cpu_deprecated_props,
const char **cpu_name)
{
if (qemuMonitorJSONParseCPUModelData(data, "query-cpu-model-expansion",
@@ -5112,6 +5113,12 @@ qemuMonitorJSONParseCPUModelExpansionData(virJSONValue *data,
cpu_name) < 0)
return -1;
+ /*
+ * Unconditionally check for the deprecated-props array, as
+ * it is not a guarantee response even if QEMU supports it.
+ */
+ *cpu_deprecated_props = virJSONValueObjectGetArray(data, "deprecated-props");
+
return 0;
}
@@ -5119,6 +5126,7 @@ qemuMonitorJSONParseCPUModelExpansionData(virJSONValue *data,
static int
qemuMonitorJSONParseCPUModelExpansion(const char *cpu_name,
virJSONValue *cpu_props,
+ virJSONValue *cpu_deprecated_props,
qemuMonitorCPUModelInfo **model_info)
{
g_autoptr(qemuMonitorCPUModelInfo) expanded_model = NULL;
@@ -5126,6 +5134,12 @@ qemuMonitorJSONParseCPUModelExpansion(const char *cpu_name,
if (qemuMonitorJSONParseCPUModel(cpu_name, cpu_props, &expanded_model) < 0)
return -1;
+ if (cpu_deprecated_props &&
+ virJSONValueArraySize(cpu_deprecated_props) &&
+ (!(expanded_model->deprecated_props = virJSONValueArrayToStringList(cpu_deprecated_props)))) {
+ return -1;
+ }
+
*model_info = g_steal_pointer(&expanded_model);
return 0;
}
@@ -5190,6 +5204,7 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitor *mon,
g_autoptr(virJSONValue) fullData = NULL;
virJSONValue *cpu_model;
virJSONValue *cpu_props = NULL;
+ virJSONValue *cpu_deprecated_props = NULL;
const char *cpu_name = "";
int rc;
@@ -5203,6 +5218,7 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitor *mon,
if (qemuMonitorJSONParseCPUModelExpansionData(data, fail_no_props,
&cpu_model, &cpu_props,
+ &cpu_deprecated_props,
&cpu_name) < 0)
return -1;
@@ -5221,11 +5237,13 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitor *mon,
if (qemuMonitorJSONParseCPUModelExpansionData(fullData, fail_no_props,
&cpu_model, &cpu_props,
+ &cpu_deprecated_props,
&cpu_name) < 0)
return -1;
}
return qemuMonitorJSONParseCPUModelExpansion(cpu_name, cpu_props,
+ cpu_deprecated_props,
model_info);
}
diff --git a/tests/qemucapabilitiesdata/caps_9.1.0_s390x.xml b/tests/qemucapabilitiesdata/caps_9.1.0_s390x.xml
index 50e9a60a1f..5e8db88e52 100644
--- a/tests/qemucapabilitiesdata/caps_9.1.0_s390x.xml
+++ b/tests/qemucapabilitiesdata/caps_9.1.0_s390x.xml
@@ -193,6 +193,12 @@
<property name='te' type='boolean' value='true'/>
<property name='cmm' type='boolean' value='true'/>
<property name='vxpdeh2' type='boolean' value='true'/>
+ <deprecatedFeatures>
+ <property name='bpb'/>
+ <property name='te'/>
+ <property name='cte'/>
+ <property name='csske'/>
+ </deprecatedFeatures>
</hostCPU>
<cpu type='kvm' name='z13' typename='z13-s390x-cpu' usable='yes'/>
<cpu type='kvm' name='z990.3' typename='z990.3-s390x-cpu' usable='yes'/>
diff --git a/tests/qemucapabilitiesdata/caps_9.2.0_s390x.xml b/tests/qemucapabilitiesdata/caps_9.2.0_s390x.xml
index 6d4f6726fb..79a149d187 100644
--- a/tests/qemucapabilitiesdata/caps_9.2.0_s390x.xml
+++ b/tests/qemucapabilitiesdata/caps_9.2.0_s390x.xml
@@ -196,6 +196,12 @@
<property name='te' type='boolean' value='true'/>
<property name='cmm' type='boolean' value='true'/>
<property name='vxpdeh2' type='boolean' value='true'/>
+ <deprecatedFeatures>
+ <property name='bpb'/>
+ <property name='te'/>
+ <property name='cte'/>
+ <property name='csske'/>
+ </deprecatedFeatures>
</hostCPU>
<cpu type='kvm' name='z13' typename='z13-s390x-cpu' usable='yes'/>
<cpu type='kvm' name='z990.3' typename='z990.3-s390x-cpu' usable='yes'/>
--
2.45.1
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com> On 11/25/24 20:46, Collin Walling wrote: > query-cpu-model-expansion may report an array of deprecated properties. > This array is optional, and may not be supported for a particular > architecture or reported for a particular CPU model. If the output is > present, then capture it and store in a qemuMonitorCPUModelInfo struct > for later use. > > The deprecated features will be retained in qemuCaps->kvm->hostCPU.info > and will be stored in the capabilities cache file under the <hostCPU> > element using the following format: > > <deprecatedFeatures> > <property name='bpb'/> > <property name='csske'/> > <property name='cte'/> > <property name='te'/> > </deprecatedFeatures> > > At this time the data is only queried, parsed, and cached. The data > will be utilized in a subsequent patch. > > Signed-off-by: Collin Walling <walling@linux.ibm.com> > --- > src/qemu/qemu_capabilities.c | 31 +++++++++++++++++++ > src/qemu/qemu_monitor.c | 10 ++++++ > src/qemu/qemu_monitor.h | 1 + > src/qemu/qemu_monitor_json.c | 18 +++++++++++ > .../qemucapabilitiesdata/caps_9.1.0_s390x.xml | 6 ++++ > .../qemucapabilitiesdata/caps_9.2.0_s390x.xml | 6 ++++ > 6 files changed, 72 insertions(+) > > diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c > index 5ac9f306f5..9fa868c8b7 100644 > --- a/src/qemu/qemu_capabilities.c > +++ b/src/qemu/qemu_capabilities.c > @@ -4015,6 +4015,7 @@ virQEMUCapsLoadHostCPUModelInfo(virQEMUCapsAccel *caps, > const char *typeStr) > { > xmlNodePtr hostCPUNode; > + xmlNodePtr deprecated_props; > g_autofree xmlNodePtr *nodes = NULL; > VIR_XPATH_NODE_AUTORESTORE(ctxt) > g_autoptr(qemuMonitorCPUModelInfo) hostCPU = NULL; > @@ -4107,6 +4108,24 @@ virQEMUCapsLoadHostCPUModelInfo(virQEMUCapsAccel *caps, > } > } > > + ctxt->node = hostCPUNode; > + > + if ((deprecated_props = virXPathNode("./deprecatedFeatures", ctxt))) { > + g_autoptr(GPtrArray) props = virXMLNodeGetSubelementList(deprecated_props, NULL); > + > + hostCPU->deprecated_props = g_new0(char *, props->len); > + > + for (i = 0; i < props->len; i++) { > + xmlNodePtr prop = g_ptr_array_index(props, i); > + > + if (!(hostCPU->deprecated_props[i] = virXMLPropString(prop, "name"))) { > + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", > + _("missing 'name' attribute for a host CPU model deprecated property in QEMU capabilities cache")); > + return -1; > + } > + } > + } > + > caps->hostCPU.info = g_steal_pointer(&hostCPU); > return 0; > } > @@ -4839,6 +4858,18 @@ virQEMUCapsFormatHostCPUModelInfo(virQEMUCapsAccel *caps, > virBufferAddLit(buf, "/>\n"); > } > > + if (model->deprecated_props) { > + virBufferAddLit(buf, "<deprecatedFeatures>\n"); > + virBufferAdjustIndent(buf, 2); > + > + for (i = 0; i < g_strv_length(model->deprecated_props); i++) > + virBufferAsprintf(buf, "<property name='%s'/>\n", > + model->deprecated_props[i]); > + > + virBufferAdjustIndent(buf, -2); > + virBufferAddLit(buf, "</deprecatedFeatures>\n"); > + } > + > virBufferAdjustIndent(buf, -2); > virBufferAddLit(buf, "</hostCPU>\n"); > } > diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c > index 73f37d26eb..94089e1c1c 100644 > --- a/src/qemu/qemu_monitor.c > +++ b/src/qemu/qemu_monitor.c > @@ -3306,6 +3306,7 @@ qemuMonitorCPUModelInfoFree(qemuMonitorCPUModelInfo *model_info) > g_free(model_info->props[i].value.string); > } > > + g_strfreev(model_info->deprecated_props); > g_free(model_info->props); > g_free(model_info->name); > g_free(model_info); > @@ -3350,6 +3351,15 @@ qemuMonitorCPUModelInfoCopy(const qemuMonitorCPUModelInfo *orig) > } > } > > + if (orig->deprecated_props) { > + copy->deprecated_props = g_new0(char *, > + g_strv_length(orig->deprecated_props)); > + > + for (i = 0; i < g_strv_length(orig->deprecated_props); i++) { > + copy->deprecated_props[i] = g_strdup(orig->deprecated_props[i]); > + } > + } > + > return copy; > } > > diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h > index 89a59dfd27..d4d9b98ba7 100644 > --- a/src/qemu/qemu_monitor.h > +++ b/src/qemu/qemu_monitor.h > @@ -1150,6 +1150,7 @@ struct _qemuMonitorCPUModelInfo { > char *name; > size_t nprops; > qemuMonitorCPUProperty *props; > + GStrv deprecated_props; > bool migratability; > }; > > diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c > index fa8c5b1aea..6500e01d3f 100644 > --- a/src/qemu/qemu_monitor_json.c > +++ b/src/qemu/qemu_monitor_json.c > @@ -5105,6 +5105,7 @@ qemuMonitorJSONParseCPUModelExpansionData(virJSONValue *data, > bool fail_no_props, > virJSONValue **cpu_model, > virJSONValue **cpu_props, > + virJSONValue **cpu_deprecated_props, > const char **cpu_name) > { > if (qemuMonitorJSONParseCPUModelData(data, "query-cpu-model-expansion", > @@ -5112,6 +5113,12 @@ qemuMonitorJSONParseCPUModelExpansionData(virJSONValue *data, > cpu_name) < 0) > return -1; > > + /* > + * Unconditionally check for the deprecated-props array, as > + * it is not a guarantee response even if QEMU supports it. > + */ > + *cpu_deprecated_props = virJSONValueObjectGetArray(data, "deprecated-props"); > + > return 0; > } > > @@ -5119,6 +5126,7 @@ qemuMonitorJSONParseCPUModelExpansionData(virJSONValue *data, > static int > qemuMonitorJSONParseCPUModelExpansion(const char *cpu_name, > virJSONValue *cpu_props, > + virJSONValue *cpu_deprecated_props, > qemuMonitorCPUModelInfo **model_info) > { > g_autoptr(qemuMonitorCPUModelInfo) expanded_model = NULL; > @@ -5126,6 +5134,12 @@ qemuMonitorJSONParseCPUModelExpansion(const char *cpu_name, > if (qemuMonitorJSONParseCPUModel(cpu_name, cpu_props, &expanded_model) < 0) > return -1; > > + if (cpu_deprecated_props && > + virJSONValueArraySize(cpu_deprecated_props) && > + (!(expanded_model->deprecated_props = virJSONValueArrayToStringList(cpu_deprecated_props)))) { > + return -1; > + } > + > *model_info = g_steal_pointer(&expanded_model); > return 0; > } > @@ -5190,6 +5204,7 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitor *mon, > g_autoptr(virJSONValue) fullData = NULL; > virJSONValue *cpu_model; > virJSONValue *cpu_props = NULL; > + virJSONValue *cpu_deprecated_props = NULL; > const char *cpu_name = ""; > int rc; > > @@ -5203,6 +5218,7 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitor *mon, > > if (qemuMonitorJSONParseCPUModelExpansionData(data, fail_no_props, > &cpu_model, &cpu_props, > + &cpu_deprecated_props, > &cpu_name) < 0) > return -1; > > @@ -5221,11 +5237,13 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitor *mon, > > if (qemuMonitorJSONParseCPUModelExpansionData(fullData, fail_no_props, > &cpu_model, &cpu_props, > + &cpu_deprecated_props, > &cpu_name) < 0) > return -1; > } > > return qemuMonitorJSONParseCPUModelExpansion(cpu_name, cpu_props, > + cpu_deprecated_props, > model_info); > } > > diff --git a/tests/qemucapabilitiesdata/caps_9.1.0_s390x.xml b/tests/qemucapabilitiesdata/caps_9.1.0_s390x.xml > index 50e9a60a1f..5e8db88e52 100644 > --- a/tests/qemucapabilitiesdata/caps_9.1.0_s390x.xml > +++ b/tests/qemucapabilitiesdata/caps_9.1.0_s390x.xml > @@ -193,6 +193,12 @@ > <property name='te' type='boolean' value='true'/> > <property name='cmm' type='boolean' value='true'/> > <property name='vxpdeh2' type='boolean' value='true'/> > + <deprecatedFeatures> > + <property name='bpb'/> > + <property name='te'/> > + <property name='cte'/> > + <property name='csske'/> > + </deprecatedFeatures> > </hostCPU> > <cpu type='kvm' name='z13' typename='z13-s390x-cpu' usable='yes'/> > <cpu type='kvm' name='z990.3' typename='z990.3-s390x-cpu' usable='yes'/> > diff --git a/tests/qemucapabilitiesdata/caps_9.2.0_s390x.xml b/tests/qemucapabilitiesdata/caps_9.2.0_s390x.xml > index 6d4f6726fb..79a149d187 100644 > --- a/tests/qemucapabilitiesdata/caps_9.2.0_s390x.xml > +++ b/tests/qemucapabilitiesdata/caps_9.2.0_s390x.xml > @@ -196,6 +196,12 @@ > <property name='te' type='boolean' value='true'/> > <property name='cmm' type='boolean' value='true'/> > <property name='vxpdeh2' type='boolean' value='true'/> > + <deprecatedFeatures> > + <property name='bpb'/> > + <property name='te'/> > + <property name='cte'/> > + <property name='csske'/> > + </deprecatedFeatures> > </hostCPU> > <cpu type='kvm' name='z13' typename='z13-s390x-cpu' usable='yes'/> > <cpu type='kvm' name='z990.3' typename='z990.3-s390x-cpu' usable='yes'/> -- Mit freundlichen Grüßen/Kind regards Boris Fiuczynski IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Wolfgang Wendt Geschäftsführung: David Faller Sitz der Gesellschaft: Böblingen Registergericht: Amtsgericht Stuttgart, HRB 243294
On Mon, Nov 25, 2024 at 14:46:36 -0500, Collin Walling wrote: > query-cpu-model-expansion may report an array of deprecated properties. > This array is optional, and may not be supported for a particular > architecture or reported for a particular CPU model. If the output is > present, then capture it and store in a qemuMonitorCPUModelInfo struct > for later use. > > The deprecated features will be retained in qemuCaps->kvm->hostCPU.info > and will be stored in the capabilities cache file under the <hostCPU> > element using the following format: > > <deprecatedFeatures> > <property name='bpb'/> > <property name='csske'/> > <property name='cte'/> > <property name='te'/> > </deprecatedFeatures> > > At this time the data is only queried, parsed, and cached. The data > will be utilized in a subsequent patch. > > Signed-off-by: Collin Walling <walling@linux.ibm.com> > --- > src/qemu/qemu_capabilities.c | 31 +++++++++++++++++++ > src/qemu/qemu_monitor.c | 10 ++++++ > src/qemu/qemu_monitor.h | 1 + > src/qemu/qemu_monitor_json.c | 18 +++++++++++ > .../qemucapabilitiesdata/caps_9.1.0_s390x.xml | 6 ++++ > .../qemucapabilitiesdata/caps_9.2.0_s390x.xml | 6 ++++ > 6 files changed, 72 insertions(+) > > diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c > index 5ac9f306f5..9fa868c8b7 100644 > --- a/src/qemu/qemu_capabilities.c > +++ b/src/qemu/qemu_capabilities.c ... > @@ -4107,6 +4108,24 @@ virQEMUCapsLoadHostCPUModelInfo(virQEMUCapsAccel *caps, > } > } > > + ctxt->node = hostCPUNode; > + > + if ((deprecated_props = virXPathNode("./deprecatedFeatures", ctxt))) { > + g_autoptr(GPtrArray) props = virXMLNodeGetSubelementList(deprecated_props, NULL); > + > + hostCPU->deprecated_props = g_new0(char *, props->len); hostCPU->deprecated_props is a NULL terminated array of strings so you need to allocate it big enough for props->len + 1 items > + > + for (i = 0; i < props->len; i++) { > + xmlNodePtr prop = g_ptr_array_index(props, i); > + > + if (!(hostCPU->deprecated_props[i] = virXMLPropString(prop, "name"))) { > + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", > + _("missing 'name' attribute for a host CPU model deprecated property in QEMU capabilities cache")); > + return -1; > + } > + } > + } > + > caps->hostCPU.info = g_steal_pointer(&hostCPU); > return 0; > } ... > diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c > index 73f37d26eb..94089e1c1c 100644 > --- a/src/qemu/qemu_monitor.c > +++ b/src/qemu/qemu_monitor.c ... > @@ -3350,6 +3351,15 @@ qemuMonitorCPUModelInfoCopy(const qemuMonitorCPUModelInfo *orig) > } > } > > + if (orig->deprecated_props) { > + copy->deprecated_props = g_new0(char *, > + g_strv_length(orig->deprecated_props)); > + > + for (i = 0; i < g_strv_length(orig->deprecated_props); i++) { > + copy->deprecated_props[i] = g_strdup(orig->deprecated_props[i]); > + } > + } Again, the array is too small, but instead of making the copy this way you could just do copy->deprecated_props = g_strdupv(orig->deprecated_props); Perhaps with some typecasting if the compiler complains about GStrv not being char **. > + > return copy; > } > ... Jirka
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