shaba/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-12-26 03:21:44 +03:00
Code Releases Activity

cpu: Add helper functions to parse vendor and model

Browse Source 
Add helper functions to parse vendor and model for
ARM CPUs, and use them as callbacks when load cpu
maps.

Signed-off-by: Zhenyu Zheng <zheng.zhenyu@outlook.com>
Message-Id: <TY2PR01MB3113C158B8C2822E75DB5EAE99BF0@TY2PR01MB3113.jpnprd01.prod.outlook.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
This commit is contained in:
Zhenyu Zheng 2020-05-13 18:48:32 +08:00 committed by Jiri Denemark
parent 0085231312
commit e7166956c7
1 changed files with 140 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

141
src/cpu/cpu_arm.c
View File

@ -210,6 +210,144 @@ virCPUarmMapFeatureParse(xmlXPathContextPtr ctxt G_GNUC_UNUSED,
return 0;
}
static virCPUarmVendorPtr
virCPUarmVendorFindByID(virCPUarmMapPtr map,
unsigned long vendor_id)
{
size_t i;
for (i = 0; i < map->nvendors; i++) {
if (map->vendors[i]->value == vendor_id)
return map->vendors[i];
}
return NULL;
}
static virCPUarmVendorPtr
virCPUarmVendorFindByName(virCPUarmMapPtr map,
const char *name)
{
size_t i;
for (i = 0; i < map->nvendors; i++) {
if (STREQ(map->vendors[i]->name, name))
return map->vendors[i];
}
return NULL;
}
static int
virCPUarmVendorParse(xmlXPathContextPtr ctxt,
const char *name,
void *data)
{
virCPUarmMapPtr map = data;
g_autoptr(virCPUarmVendor) vendor = NULL;
vendor = g_new0(virCPUarmVendor, 1);
vendor->name = g_strdup(name);
if (virCPUarmVendorFindByName(map, vendor->name)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("CPU vendor %s already defined"),
vendor->name);
return -1;
}
if (virXPathULongHex("string(@value)", ctxt, &vendor->value) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("Missing CPU vendor value"));
return -1;
}
if (virCPUarmVendorFindByID(map, vendor->value)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("CPU vendor value 0x%2lx already defined"),
vendor->value);
return -1;
}
if (VIR_APPEND_ELEMENT(map->vendors, map->nvendors, vendor) < 0)
return -1;
return 0;
}
static virCPUarmModelPtr
virCPUarmModelFind(virCPUarmMapPtr map,
const char *name)
{
size_t i;
for (i = 0; i < map->nmodels; i++) {
if (STREQ(map->models[i]->name, name))
return map->models[i];
}
return NULL;
}
static int
virCPUarmModelParse(xmlXPathContextPtr ctxt,
const char *name,
void *data)
{
virCPUarmMapPtr map = data;
g_autoptr(virCPUarmModel) model = NULL;
g_autofree xmlNodePtr *nodes = NULL;
g_autofree char *vendor = NULL;
model = g_new0(virCPUarmModel, 1);
model->name = g_strdup(name);
if (virCPUarmModelFind(map, model->name)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("CPU model %s already defined"),
model->name);
return -1;
}
if (virXPathBoolean("boolean(./vendor)", ctxt)) {
vendor = virXPathString("string(./vendor/@name)", ctxt);
if (!vendor) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Invalid vendor element in CPU model %s"),
model->name);
return -1;
}
if (!(model->vendor = virCPUarmVendorFindByName(map, vendor))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unknown vendor %s referenced by CPU model %s"),
vendor, model->name);
return -1;
}
}
if (!virXPathBoolean("boolean(./pvr)", ctxt)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Missing PVR information for CPU model %s"),
model->name);
return -1;
}
if (virXPathULongHex("string(./pvr/@value)", ctxt, &model->data.pvr) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Missing or invalid PVR value in CPU model %s"),
model->name);
return -1;
}
if (VIR_APPEND_ELEMENT(map->models, map->nmodels, model) < 0)
return -1;
return 0;
}
static virCPUarmMapPtr
virCPUarmLoadMap(void)
{
@ -217,7 +355,8 @@ virCPUarmLoadMap(void)
map = virCPUarmMapNew();
if (cpuMapLoad("arm", NULL, virCPUarmMapFeatureParse, NULL, map) < 0)
if (cpuMapLoad("arm", virCPUarmVendorParse, virCPUarmMapFeatureParse,
virCPUarmModelParse, map) < 0)
return NULL;
return g_steal_pointer(&map);