Move virCacheKernel enum implemetation from conf/ to util/

It will be used in that file later on, plus it makes sense for all the
implementations to be in same place.  Also comment each one of them nicely and
add a comment explaining why they all need to end with the same _LAST value.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/conf/capabilities.c

@@ -1544,12 +1544,6 @@ virCapabilitiesInitPages(virCapsPtr caps)
     return ret;
 }
 
-/* Cache name mapping for Linux kernel naming */
-VIR_ENUM_DECL(virCacheKernel);
-VIR_ENUM_IMPL(virCacheKernel, VIR_CACHE_TYPE_LAST,
-              "Unified",
-              "Instruction",
-              "Data")
 
 bool
 virCapsHostCacheBankEquals(virCapsHostCacheBankPtr a,

src/libvirt_private.syms

@@ -2619,6 +2619,8 @@ virRandomInt;
 
 
 # util/virresctrl.h
+virCacheKernelTypeFromString;
+virCacheKernelTypeToString;
 virCacheTypeFromString;
 virCacheTypeToString;
 virResctrlAllocAddPID;

src/util/virresctrl.c

@@ -48,15 +48,24 @@ VIR_LOG_INIT("util.virresctrl")
 #define SYSFS_RESCTRL_PATH "/sys/fs/resctrl"
 
 
-/* Our naming for cache types and scopes */
+/* Following are three different enum implementations for the same enum.  Each
+ * one of them helps translating to/from strings for different interfaces.  The
+ * delimiter must be VIR_CACHE_TYPE_LAST for all of them in order to stay
+ * consistent in between all of them. */
+
+/* Cache name mapping for Linux kernel naming. */
+VIR_ENUM_IMPL(virCacheKernel, VIR_CACHE_TYPE_LAST,
+              "Unified",
+              "Instruction",
+              "Data")
+
+/* Cache name mapping for our XML naming. */
 VIR_ENUM_IMPL(virCache, VIR_CACHE_TYPE_LAST,
               "both",
               "code",
               "data")
-/*
- * This is the same enum, but for the resctrl naming
- * of the type (L<level><type>)
- */
+
+/* Cache name mapping for resctrl interface naming. */
 VIR_ENUM_DECL(virResctrl)
 VIR_ENUM_IMPL(virResctrl, VIR_CACHE_TYPE_LAST,
               "",

src/util/virresctrl.h

@@ -34,6 +34,7 @@ typedef enum {
 } virCacheType;
 
 VIR_ENUM_DECL(virCache);
+VIR_ENUM_DECL(virCacheKernel);
 
 
 typedef struct _virResctrlInfoPerCache virResctrlInfoPerCache;