External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2025-01-22 04:25:18 +00:00
Code Issues Packages Projects Releases Wiki Activity

use virBitmap to store cpumask info.

Browse Source
This commit is contained in:
Hu Tao 2012-09-14 15:47:01 +08:00 committed by Laine Stump
parent 75b198b3e7
commit ee7d23ba4b
11 changed files with 54 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
src/conf/domain_conf.c
View File

@ -8618,14 +8618,12 @@ static virDomainDefPtr virDomainDefParseXML(virCapsPtr caps,
if (def->placement_mode != VIR_DOMAIN_CPU_PLACEMENT_MODE_AUTO) {
tmp = virXPathString("string(./vcpu[1]/@cpuset)", ctxt);
if (tmp) {
char *set = tmp;
def->cpumasklen = VIR_DOMAIN_CPUMASK_LEN;
if (VIR_ALLOC_N(def->cpumask, def->cpumasklen) < 0) {
goto no_memory;
}
if (virDomainCpuSetParse(set, 0, def->cpumask,
def->cpumasklen) < 0)
if (virBitmapParse(tmp, 0, &def->cpumask,
VIR_DOMAIN_CPUMASK_LEN) < 0) {
virReportError(VIR_ERR_XML_ERROR,
"%s", _("topology cpuset syntax error"));
goto error;
}
VIR_FREE(tmp);
}
}
@ -13369,7 +13367,7 @@ virDomainDefFormatInternal(virDomainDefPtr def,
unsigned char *uuid;
char uuidstr[VIR_UUID_STRING_BUFLEN];
const char *type = NULL;
int n, allones = 1;
int n;
int i;
bool blkio = false;
@ -13498,17 +13496,13 @@ virDomainDefFormatInternal(virDomainDefPtr def,
" </memoryBacking>\n", NULL);
}
for (n = 0 ; n < def->cpumasklen ; n++)
if (def->cpumask[n] != 1)
allones = 0;
virBufferAddLit(buf, " <vcpu");
virBufferAsprintf(buf, " placement='%s'",
virDomainCpuPlacementModeTypeToString(def->placement_mode));
if (!allones) {
if (def->cpumask && !virBitmapIsAllSet(def->cpumask)) {
char *cpumask = NULL;
if ((cpumask =
virDomainCpuSetFormat(def->cpumask, def->cpumasklen)) == NULL)
if ((cpumask = virBitmapFormat(def->cpumask)) == NULL)
goto cleanup;
virBufferAsprintf(buf, " cpuset='%s'", cpumask);
VIR_FREE(cpumask);

3
src/conf/domain_conf.h
View File

@ -1641,8 +1641,7 @@ struct _virDomainDef {
unsigned short vcpus;
unsigned short maxvcpus;
int placement_mode;
int cpumasklen;
char *cpumask;
virBitmapPtr cpumask;
struct {
unsigned long shares;

14
src/lxc/lxc_controller.c
View File

@ -490,9 +490,9 @@ static int virLXCControllerSetupNUMAPolicy(virLXCControllerPtr ctrl)
*/
static int virLXCControllerSetupCpuAffinity(virLXCControllerPtr ctrl)
{
int i, hostcpus, maxcpu = CPU_SETSIZE;
int hostcpus, maxcpu = CPU_SETSIZE;
virNodeInfo nodeinfo;
virBitmapPtr cpumap;
virBitmapPtr cpumap, cpumapToSet;
VIR_DEBUG("Setting CPU affinity");
@ -509,12 +509,10 @@ static int virLXCControllerSetupCpuAffinity(virLXCControllerPtr ctrl)
if (!cpumap)
return -1;
cpumapToSet = cpumap;
if (ctrl->def->cpumask) {
/* XXX why don't we keep 'cpumask' in the libvirt cpumap
* format to start with ?!?! */
for (i = 0 ; i < maxcpu && i < ctrl->def->cpumasklen ; i++)
if (ctrl->def->cpumask[i])
ignore_value(virBitmapSetBit(cpumap, i));
cpumapToSet = ctrl->def->cpumask;
} else {
/* You may think this is redundant, but we can't assume libvirtd
* itself is running on all pCPUs, so we need to explicitly set
@ -527,7 +525,7 @@ static int virLXCControllerSetupCpuAffinity(virLXCControllerPtr ctrl)
* so use '0' to indicate our own process ID. No threads are
* running at this point
*/
if (virProcessInfoSetAffinity(0 /* Self */, cpumap) < 0) {
if (virProcessInfoSetAffinity(0 /* Self */, cpumapToSet) < 0) {
virBitmapFree(cpumap);
return -1;
}

3
src/parallels/parallels_driver.c
View File

@ -1445,8 +1445,7 @@ parallelsApplyChanges(virDomainObjPtr dom, virDomainDefPtr new)
return -1;
}
if (old->cpumasklen != new->cpumasklen ||
(memcmp(old->cpumask, new->cpumask, old->cpumasklen))) {
if (!virBitmapEqual(old->cpumask, new->cpumask)) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("changing cpu mask is not supported "

12
src/qemu/qemu_process.c
View File

@ -1853,7 +1853,7 @@ qemuProcessInitCpuAffinity(struct qemud_driver *driver,
int ret = -1;
int i, hostcpus, maxcpu = QEMUD_CPUMASK_LEN;
virNodeInfo nodeinfo;
virBitmapPtr cpumap;
virBitmapPtr cpumap, cpumapToSet;
VIR_DEBUG("Setting CPU affinity");
@ -1872,6 +1872,8 @@ qemuProcessInitCpuAffinity(struct qemud_driver *driver,
return -1;
}
cpumapToSet = cpumap;
if (vm->def->placement_mode == VIR_DOMAIN_CPU_PLACEMENT_MODE_AUTO) {
VIR_DEBUG("Set CPU affinity with advisory nodeset from numad");
/* numad returns the NUMA node list, convert it to cpumap */
@ -1890,11 +1892,7 @@ qemuProcessInitCpuAffinity(struct qemud_driver *driver,
} else {
VIR_DEBUG("Set CPU affinity with specified cpuset");
if (vm->def->cpumask) {
/* XXX why don't we keep 'cpumask' in the libvirt cpumap
* format to start with ?!?! */
for (i = 0 ; i < maxcpu && i < vm->def->cpumasklen ; i++)
if (vm->def->cpumask[i])
ignore_value(virBitmapSetBit(cpumap, i));
cpumapToSet = vm->def->cpumask;
} else {
/* You may think this is redundant, but we can't assume libvirtd
* itself is running on all pCPUs, so we need to explicitly set
@ -1908,7 +1906,7 @@ qemuProcessInitCpuAffinity(struct qemud_driver *driver,
* so use '0' to indicate our own process ID. No threads are
* running at this point
*/
if (virProcessInfoSetAffinity(0 /* Self */, cpumap) < 0)
if (virProcessInfoSetAffinity(0 /* Self */, cpumapToSet) < 0)
goto cleanup;
ret = 0;

5
src/test/test_driver.c
View File

@ -383,6 +383,7 @@ testDomainUpdateVCPU(virConnectPtr conn ATTRIBUTE_UNUSED,
virVcpuInfoPtr info = &privdata->vcpu_infos[vcpu];
unsigned char *cpumap = VIR_GET_CPUMAP(privdata->cpumaps, maplen, vcpu);
int j;
bool cpu;
memset(info, 0, sizeof(virVcpuInfo));
memset(cpumap, 0, maplen);
@ -394,7 +395,9 @@ testDomainUpdateVCPU(virConnectPtr conn ATTRIBUTE_UNUSED,
if (dom->def->cpumask) {
for (j = 0; j < maxcpu && j < VIR_DOMAIN_CPUMASK_LEN; ++j) {
if (dom->def->cpumask[j]) {
if (virBitmapGetBit(dom->def->cpumask, j, &cpu) < 0)
return -1;
if (cpu) {
VIR_USE_CPU(cpumap, j);
info->cpu = j;
}

24
src/vmx/vmx.c
View File

@ -1235,6 +1235,7 @@ virVMXParseConfig(virVMXContext *ctx, virCapsPtr caps, const char *vmx)
int unit;
bool hgfs_disabled = true;
long long sharedFolder_maxNum = 0;
int cpumasklen;
if (ctx->parseFileName == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
@ -1417,9 +1418,10 @@ virVMXParseConfig(virVMXContext *ctx, virCapsPtr caps, const char *vmx)
const char *current = sched_cpu_affinity;
int number, count = 0;
def->cpumasklen = 0;
cpumasklen = 0;
if (VIR_ALLOC_N(def->cpumask, VIR_DOMAIN_CPUMASK_LEN) < 0) {
def->cpumask = virBitmapNew(VIR_DOMAIN_CPUMASK_LEN);
if (!def->cpumask) {
virReportOOMError();
goto cleanup;
}
@ -1444,11 +1446,11 @@ virVMXParseConfig(virVMXContext *ctx, virCapsPtr caps, const char *vmx)
goto cleanup;
}
if (number + 1 > def->cpumasklen) {
def->cpumasklen = number + 1;
if (number + 1 > cpumasklen) {
cpumasklen = number + 1;
}
def->cpumask[number] = 1;
ignore_value(virBitmapSetBit(def->cpumask, number));
++count;
virSkipSpaces(&current);
@ -3165,16 +3167,15 @@ virVMXFormatConfig(virVMXContext *ctx, virCapsPtr caps, virDomainDefPtr def,
virBufferAsprintf(&buffer, "numvcpus = \"%d\"\n", def->maxvcpus);
/* def:cpumask -> vmx:sched.cpu.affinity */
if (def->cpumasklen > 0) {
if (def->cpumask && virBitmapSize(def->cpumask) > 0) {
virBufferAddLit(&buffer, "sched.cpu.affinity = \"");
sched_cpu_affinity_length = 0;
for (i = 0; i < def->cpumasklen; ++i) {
if (def->cpumask[i]) {
i = -1;
while ((i = virBitmapNextSetBit(def->cpumask, i)) >= 0) {
++sched_cpu_affinity_length;
}
}
if (sched_cpu_affinity_length < def->maxvcpus) {
virReportError(VIR_ERR_INTERNAL_ERROR,
@ -3184,8 +3185,8 @@ virVMXFormatConfig(virVMXContext *ctx, virCapsPtr caps, virDomainDefPtr def,
goto cleanup;
}
for (i = 0; i < def->cpumasklen; ++i) {
if (def->cpumask[i]) {
i = -1;
while ((i = virBitmapNextSetBit(def->cpumask, i)) >= 0) {
virBufferAsprintf(&buffer, "%d", i);
if (sched_cpu_affinity_length > 1) {
@ -3194,7 +3195,6 @@ virVMXFormatConfig(virVMXContext *ctx, virCapsPtr caps, virDomainDefPtr def,
--sched_cpu_affinity_length;
}
}
virBufferAddLit(&buffer, "\"\n");
}

11
src/xen/xm_internal.c
View File

@ -831,7 +831,7 @@ int xenXMDomainPinVcpu(virDomainPtr domain,
char *mapstr = NULL, *mapsave = NULL;
int i, j, n, comma = 0;
int ret = -1;
char *cpuset = NULL;
virBitmapPtr cpuset = NULL;
int maxcpu = XEN_MAX_PHYSICAL_CPU;
if (domain == NULL || domain->conn == NULL || domain->name == NULL
@ -885,16 +885,11 @@ int xenXMDomainPinVcpu(virDomainPtr domain,
mapstr = virBufferContentAndReset(&mapbuf);
mapsave = mapstr;
if (VIR_ALLOC_N(cpuset, maxcpu) < 0) {
virReportOOMError();
goto cleanup;
}
if (virDomainCpuSetParse(mapstr, 0, cpuset, maxcpu) < 0)
if (virBitmapParse(mapstr, 0, &cpuset, maxcpu) < 0)
goto cleanup;
VIR_FREE(entry->def->cpumask);
virBitmapFree(entry->def->cpumask);
entry->def->cpumask = cpuset;
entry->def->cpumasklen = maxcpu;
cpuset = NULL;
if (xenXMConfigSaveFile(domain->conn, entry->filename, entry->def) < 0)

12
src/xenxs/xen_sxpr.c
View File

@ -1197,14 +1197,8 @@ xenParseSxpr(const struct sexpr *root,
def->mem.cur_balloon = def->mem.max_balloon;
if (cpus != NULL) {
def->cpumasklen = VIR_DOMAIN_CPUMASK_LEN;
if (VIR_ALLOC_N(def->cpumask, def->cpumasklen) < 0) {
virReportOOMError();
goto error;
}
if (virDomainCpuSetParse(cpus, 0, def->cpumask,
def->cpumasklen) < 0) {
if (virBitmapParse(cpus, 0, &def->cpumask,
VIR_DOMAIN_CPUMASK_LEN) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid CPU mask %s"), cpus);
goto error;
@ -2246,7 +2240,7 @@ xenFormatSxpr(virConnectPtr conn,
virBufferAsprintf(&buf, "(vcpu_avail %lu)", (1UL << def->vcpus) - 1);
if (def->cpumask) {
char *ranges = virDomainCpuSetFormat(def->cpumask, def->cpumasklen);
char *ranges = virBitmapFormat(def->cpumask);
if (ranges == NULL)
goto error;
virBufferEscapeSexpr(&buf, "(cpus '%s')", ranges);

14
src/xenxs/xen_xm.c
View File

@ -369,16 +369,8 @@ xenParseXM(virConfPtr conf, int xendConfigVersion,
if (xenXMConfigGetString(conf, "cpus", &str, NULL) < 0)
goto cleanup;
if (str) {
def->cpumasklen = 4096;
if (VIR_ALLOC_N(def->cpumask, def->cpumasklen) < 0)
goto no_memory;
if (virDomainCpuSetParse(str, 0,
def->cpumask, def->cpumasklen) < 0)
if (str && (virBitmapParse(str, 0, &def->cpumask, 4096) < 0))
goto cleanup;
}
if (xenXMConfigGetString(conf, "on_poweroff", &str, "destroy") < 0)
goto cleanup;
@ -1549,9 +1541,9 @@ virConfPtr xenFormatXM(virConnectPtr conn,
goto no_memory;
if ((def->cpumask != NULL) &&
((cpus = virDomainCpuSetFormat(def->cpumask,
def->cpumasklen)) == NULL))
((cpus = virBitmapFormat(def->cpumask)) == NULL)) {
goto cleanup;
}
if (cpus &&
xenXMConfigSetString(conf, "cpus", cpus) < 0)

2
tests/cpuset
View File

@ -42,7 +42,7 @@ sed "s/vcpu placement='static'>/vcpu cpuset='aaa'>/" xml > xml-invalid || fail=1
$abs_top_builddir/tools/virsh --connect test:///default define xml-invalid > out 2>&1 && fail=1
cat <<\EOF > exp || fail=1
error: Failed to define domain from xml-invalid
error: internal error topology cpuset syntax error
error: XML error: topology cpuset syntax error
EOF
compare exp out || fail=1