[libvirt] [RFC PATCH 02/11] domain_conf: introduce virDomainDimmGetFreeSlot
Add a bitmap dimm_slot_map to store status of slots. If you want to
use a slot, you can find a minimum value which has not been used in
the bitmap.
Signed-off-by: Zhu Guihua <zhugh.fnst(a)cn.fujitsu.com>
---
src/conf/domain_conf.c | 12 ++++++++++++
src/conf/domain_conf.h | 3 +++
2 files changed, 15 insertions(+)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 526f2da..d7f7a9e 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -12739,6 +12739,9 @@ virDomainDefParseXML(xmlDocPtr xml,
goto error;
}
+ if (!(def->mem.dimm_slot_map = virBitmapNew(def->mem.slots)))
+ goto error;
+
/* and info about it */
if ((tmp = virXPathString("string(./memory[1]/@dumpCore)", ctxt))
&&
(def->mem.dump_core = virTristateSwitchTypeFromString(tmp)) <= 0) {
@@ -16205,6 +16208,15 @@ virDomainDefAddImplicitControllers(virDomainDefPtr def)
return 0;
}
+int
+virDomainDimmGetFreeSlot(virDomainDefPtr def)
+{
+ int i;
+ i = virBitmapNextClearBit(def->mem.dimm_slot_map, 0);
+
+ return i;
+}
+
/* Check if vcpupin with same vcpuid already exists.
* Return 1 if exists, 0 if not. */
int
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 731d14f..d746272 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2021,6 +2021,7 @@ struct _virDomainMemtune {
unsigned int slots; /* the maximum slots for memory devices */
unsigned long long maxmem; /* in kibibytes, the maximum memory
for the guest */
+ virBitmapPtr dimm_slot_map;
virDomainHugePagePtr hugepages;
size_t nhugepages;
@@ -2526,6 +2527,8 @@ int virDomainDefCompatibleDevice(virDomainDefPtr def,
virDomainDeviceDefPtr dev,
virDomainDeviceAction action);
+int virDomainDimmGetFreeSlot(virDomainDefPtr def);
+
int virDomainVcpuPinAdd(virDomainVcpuPinDefPtr **vcpupin_list,
size_t *nvcpupin,
unsigned char *cpumap,
--
1.9.3