[libvirt] [PATCH v3 03/17] qemuBuildMemoryBackendStr: Pass virDomainMemoryDefPtr
Michal Privoznik
mprivozn at redhat.com
Thu Mar 9 16:06:12 UTC 2017
Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
src/qemu/qemu_command.c | 49 ++++++++++++++++++++++---------------------------
src/qemu/qemu_command.h | 5 +----
src/qemu/qemu_hotplug.c | 6 ++----
3 files changed, 25 insertions(+), 35 deletions(-)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 62d3a0a4e..cbe3e3492 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -3078,11 +3078,7 @@ qemuBuildControllerDevCommandLine(virCommandPtr cmd,
/**
* qemuBuildMemoryBackendStr:
- * @size: size of the memory device in kibibytes
- * @pagesize: size of the requested memory page in KiB, 0 for default
- * @guestNode: NUMA node in the guest that the memory object will be attached
- * to, or -1 if NUMA is not used in the guest
- * @hostNodes: map of host nodes to alloc the memory in, NULL for default
+ * @mem: memory definition object
* @autoNodeset: fallback nodeset in case of automatic numa placement
* @def: domain definition object
* @qemuCaps: qemu capabilities object
@@ -3100,10 +3096,7 @@ qemuBuildControllerDevCommandLine(virCommandPtr cmd,
* -1 in case of an error.
*/
int
-qemuBuildMemoryBackendStr(unsigned long long size,
- unsigned long long pagesize,
- int guestNode,
- virBitmapPtr userNodeset,
+qemuBuildMemoryBackendStr(virDomainMemoryDefPtr mem,
virBitmapPtr autoNodeset,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
@@ -3122,26 +3115,27 @@ qemuBuildMemoryBackendStr(unsigned long long size,
virBitmapPtr nodemask = NULL;
int ret = -1;
virJSONValuePtr props = NULL;
- bool nodeSpecified = virDomainNumatuneNodeSpecified(def->numa, guestNode);
+ bool nodeSpecified = virDomainNumatuneNodeSpecified(def->numa, mem->targetNode);
+ unsigned long long pagesize = mem->pagesize;
bool needHugepage = !!pagesize;
*backendProps = NULL;
*backendType = NULL;
- if (guestNode >= 0) {
+ if (mem->targetNode >= 0) {
/* memory devices could provide a invalid guest node */
- if (guestNode >= virDomainNumaGetNodeCount(def->numa)) {
+ if (mem->targetNode >= virDomainNumaGetNodeCount(def->numa)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("can't add memory backend for guest node '%d' as "
"the guest has only '%zu' NUMA nodes configured"),
- guestNode, virDomainNumaGetNodeCount(def->numa));
+ mem->targetNode, virDomainNumaGetNodeCount(def->numa));
return -1;
}
- memAccess = virDomainNumaGetNodeMemoryAccessMode(def->numa, guestNode);
+ memAccess = virDomainNumaGetNodeMemoryAccessMode(def->numa, mem->targetNode);
}
- if (virDomainNumatuneGetMode(def->numa, guestNode, &mode) < 0 &&
+ if (virDomainNumatuneGetMode(def->numa, mem->targetNode, &mode) < 0 &&
virDomainNumatuneGetMode(def->numa, -1, &mode) < 0)
mode = VIR_DOMAIN_NUMATUNE_MEM_STRICT;
@@ -3158,10 +3152,10 @@ qemuBuildMemoryBackendStr(unsigned long long size,
}
/* just find the master hugepage in case we don't use NUMA */
- if (guestNode < 0)
+ if (mem->targetNode < 0)
continue;
- if (virBitmapGetBit(hugepage->nodemask, guestNode,
+ if (virBitmapGetBit(hugepage->nodemask, mem->targetNode,
&thisHugepage) < 0) {
/* Ignore this error. It's not an error after all. Well,
* the nodemask for this <page/> can contain lower NUMA
@@ -3250,14 +3244,14 @@ qemuBuildMemoryBackendStr(unsigned long long size,
*backendType = "memory-backend-ram";
}
- if (virJSONValueObjectAdd(props, "U:size", size * 1024, NULL) < 0)
+ if (virJSONValueObjectAdd(props, "U:size", mem->size * 1024, NULL) < 0)
goto cleanup;
- if (userNodeset) {
- nodemask = userNodeset;
+ if (mem->sourceNodes) {
+ nodemask = mem->sourceNodes;
} else {
if (virDomainNumatuneMaybeGetNodeset(def->numa, autoNodeset,
- &nodemask, guestNode) < 0)
+ &nodemask, mem->targetNode) < 0)
goto cleanup;
}
@@ -3272,7 +3266,7 @@ qemuBuildMemoryBackendStr(unsigned long long size,
}
/* If none of the following is requested... */
- if (!needHugepage && !userNodeset && !nodeSpecified &&
+ if (!needHugepage && !mem->sourceNodes && !nodeSpecified &&
memAccess == VIR_DOMAIN_MEMORY_ACCESS_DEFAULT &&
def->mem.source != VIR_DOMAIN_MEMORY_SOURCE_FILE && !force) {
/* report back that using the new backend is not necessary
@@ -3321,17 +3315,19 @@ qemuBuildMemoryCellBackendStr(virDomainDefPtr def,
const char *backendType;
int ret = -1;
int rc;
+ virDomainMemoryDef mem = { 0 };
unsigned long long memsize = virDomainNumaGetNodeMemorySize(def->numa,
cell);
*backendStr = NULL;
+ mem.size = memsize;
+ mem.targetNode = cell;
if (virAsprintf(&alias, "ram-node%zu", cell) < 0)
goto cleanup;
- if ((rc = qemuBuildMemoryBackendStr(memsize, 0, cell, NULL, auto_nodeset,
- def, qemuCaps, cfg, &backendType,
- &props, false)) < 0)
+ if ((rc = qemuBuildMemoryBackendStr(&mem, auto_nodeset, def, qemuCaps,
+ cfg, &backendType, &props, false)) < 0)
goto cleanup;
if (!(*backendStr = virQEMUBuildObjectCommandlineFromJSON(backendType,
@@ -3370,8 +3366,7 @@ qemuBuildMemoryDimmBackendStr(virDomainMemoryDefPtr mem,
if (virAsprintf(&alias, "mem%s", mem->info.alias) < 0)
goto cleanup;
- if (qemuBuildMemoryBackendStr(mem->size, mem->pagesize,
- mem->targetNode, mem->sourceNodes, auto_nodeset,
+ if (qemuBuildMemoryBackendStr(mem, auto_nodeset,
def, qemuCaps, cfg,
&backendType, &props, true) < 0)
goto cleanup;
diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h
index 69fe84613..9b2b81f55 100644
--- a/src/qemu/qemu_command.h
+++ b/src/qemu/qemu_command.h
@@ -124,10 +124,7 @@ char *qemuBuildControllerDevStr(const virDomainDef *domainDef,
virQEMUCapsPtr qemuCaps,
int *nusbcontroller);
-int qemuBuildMemoryBackendStr(unsigned long long size,
- unsigned long long pagesize,
- int guestNode,
- virBitmapPtr userNodeset,
+int qemuBuildMemoryBackendStr(virDomainMemoryDefPtr mem,
virBitmapPtr autoNodeset,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 0e4af830f..39710db19 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -2240,10 +2240,8 @@ qemuDomainAttachMemory(virQEMUDriverPtr driver,
if (!(devstr = qemuBuildMemoryDeviceStr(mem)))
goto cleanup;
- if (qemuBuildMemoryBackendStr(mem->size, mem->pagesize,
- mem->targetNode, mem->sourceNodes, NULL,
- vm->def, priv->qemuCaps, cfg,
- &backendType, &props, true) < 0)
+ if (qemuBuildMemoryBackendStr(mem, NULL, vm->def, priv->qemuCaps,
+ cfg, &backendType, &props, true) < 0)
goto cleanup;
if (virDomainMemoryInsert(vm->def, mem) < 0) {
--
2.11.0
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