[v6 07/10] Resctrl: Make sure l3data/l3code are pairs

[Eli Qiao <liyong.qiao@xxxxxxxxx>]

l3data and l3code type of cache banks should be configured pairs.

Signed-off-by: Eli Qiao <liyong.qiao@xxxxxxxxx>
---
 src/conf/domain_conf.c | 19 +++++++++++++++++++
 src/util/virresctrl.c  |  1 -
 src/util/virresctrl.h  |  2 ++
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 430c451..0f7f331 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -15619,9 +15619,13 @@ virDomainCacheTuneDefParseXML(virDomainDefPtr def,
     int type = -1;
     virDomainCacheBankPtr bank = NULL;
     virResCtrlPtr resctrl;
+    /* A Array to make sure l3code and l3data are pairs*/
+    int* sem = NULL;
 
     if (VIR_ALLOC_N(bank, n) < 0)
         goto cleanup;
+    if (VIR_ALLOC_N(sem, MAX_CPU_SOCKET_NUM) < 0)
+        goto cleanup;
 
     for (i = 0; i < n; i++) {
         if (!(tmp = virXMLPropString(nodes[i], "id"))) {
@@ -15669,6 +15673,12 @@ virDomainCacheTuneDefParseXML(virDomainDefPtr def,
             goto cleanup;
         }
 
+        /* VIR_RDT_RESOURCE_L3DATA and VIR_RDT_RESOURCE_L3CODE should be pair */
+        if (type == VIR_RDT_RESOURCE_L3DATA)
+            sem[bank[i].host_id] ++;
+        else if (type == VIR_RDT_RESOURCE_L3CODE)
+            sem[bank[i].host_id] --;
+
         resctrl = virResCtrlGet(type);
 
         if (resctrl == NULL || !resctrl->enabled) {
@@ -15717,6 +15727,14 @@ virDomainCacheTuneDefParseXML(virDomainDefPtr def,
         }
     }
 
+    for (i = 0; i < MAX_CPU_SOCKET_NUM; i ++) {
+        if (sem[i] != 0) {
+            virReportError(VIR_ERR_XML_ERROR,
+                    _("'l3code and l3data shoud be show up pairs on bank %zu'"),
+                    i);
+            goto cleanup;
+        }
+    }
     def->cachetune.cache_banks = bank;
     def->cachetune.n_banks = n;
     return 0;
@@ -15724,6 +15742,7 @@ virDomainCacheTuneDefParseXML(virDomainDefPtr def,
  cleanup:
     VIR_FREE(bank);
     VIR_FREE(tmp);
+    VIR_FREE(sem);
     return -1;
 }
 
diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c
index 3ca3600..d15e985 100644
--- a/src/util/virresctrl.c
+++ b/src/util/virresctrl.c
@@ -40,7 +40,6 @@
 VIR_LOG_INIT("util.resctrl");
 
 #define VIR_FROM_THIS VIR_FROM_RESCTRL
-#define MAX_CPU_SOCKET_NUM 8
 #define MAX_CBM_BIT_LEN 32
 #define MAX_SCHEMATA_LEN 1024
 #define MAX_FILE_LEN ( 10 * 1024 * 1024)
diff --git a/src/util/virresctrl.h b/src/util/virresctrl.h
index ba5697e..ee7e115 100644
--- a/src/util/virresctrl.h
+++ b/src/util/virresctrl.h
@@ -28,6 +28,8 @@
 # include "virbitmap.h"
 # include "domain_conf.h"
 
+#define MAX_CPU_SOCKET_NUM 8
+
 enum {
     VIR_RDT_RESOURCE_L3,
     VIR_RDT_RESOURCE_L3DATA,
-- 
1.9.1

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