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virsh: fix vcpupin info 

The "virDomainGetInfo" will get for running domain only live info and for
offline domain only config info. There was no way how to get config info
for running domain. We will use "vshCPUCountCollect" instead to get the
correct cpu count that we need to pass to "virDomainGetVcpuPinInfo".

Also cleanup some unnecessary variables and checks that are done by
drivers.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1160559

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2015-02-20 08:21:05 +01:00
parent af20423264
commit 81dd81e475
2 changed files with 35 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tests/vcpupin
View File

@ -43,7 +43,7 @@ compare exp out || fail=1
$abs_top_builddir/tools/virsh --connect test:///default vcpupin test 100 0,1 > out 2>&1
test $? = 1 || fail=1
cat <<\EOF > exp || fail=1
error: vcpupin: vCPU index out of range.
error: invalid argument: requested vcpu is higher than allocated vcpus
EOF
compare exp out || fail=1

59
tools/virsh-domain.c
View File

@ -6450,20 +6450,17 @@ vshParseCPUList(vshControl *ctl, const char *cpulist,
static bool
cmdVcpuPin(vshControl *ctl, const vshCmd *cmd)
{
virDomainInfo info;
virDomainPtr dom;
unsigned int vcpu = 0;
const char *cpulist = NULL;
bool ret = false;
unsigned char *cpumap = NULL;
unsigned char *cpumaps = NULL;
size_t cpumaplen;
int maxcpu, ncpus;
size_t i;
bool config = vshCommandOptBool(cmd, "config");
bool live = vshCommandOptBool(cmd, "live");
bool current = vshCommandOptBool(cmd, "current");
bool query = false; /* Query mode if no cpulist */
int got_vcpu;
unsigned int flags = VIR_DOMAIN_AFFECT_CURRENT;
@ -6481,48 +6478,47 @@ cmdVcpuPin(vshControl *ctl, const vshCmd *cmd)
if (vshCommandOptStringReq(ctl, cmd, "cpulist", &cpulist) < 0)
return false;
if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
return false;
query = !cpulist;
if (!cpulist)
VSH_EXCLUSIVE_OPTIONS_VAR(live, config);
if ((got_vcpu = vshCommandOptUInt(cmd, "vcpu", &vcpu)) < 0) {
vshError(ctl, "%s", _("vcpupin: Invalid vCPU number."));
goto cleanup;
return false;
}
/* In pin mode, "vcpu" is necessary */
if (!query && got_vcpu == 0) {
if (cpulist && got_vcpu == 0) {
vshError(ctl, "%s", _("vcpupin: Missing vCPU number in pin mode."));
goto cleanup;
}
if (virDomainGetInfo(dom, &info) != 0) {
vshError(ctl, "%s", _("vcpupin: failed to get domain information."));
goto cleanup;
}
if (vcpu >= info.nrVirtCpu) {
vshError(ctl, "%s", _("vcpupin: vCPU index out of range."));
goto cleanup;
return false;
}
if ((maxcpu = vshNodeGetCPUCount(ctl->conn)) < 0)
goto cleanup;
return false;
cpumaplen = VIR_CPU_MAPLEN(maxcpu);
if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
return false;
/* Query mode: show CPU affinity information then exit.*/
if (query) {
if (!cpulist) {
/* When query mode and neither "live", "config" nor "current"
* is specified, set VIR_DOMAIN_AFFECT_CURRENT as flags */
if (flags == -1)
flags = VIR_DOMAIN_AFFECT_CURRENT;
cpumaps = vshMalloc(ctl, info.nrVirtCpu * cpumaplen);
if ((ncpus = virDomainGetVcpuPinInfo(dom, info.nrVirtCpu,
cpumaps, cpumaplen, flags)) >= 0) {
if ((ncpus = vshCPUCountCollect(ctl, dom, flags, true)) < 0) {
if (ncpus == -1) {
if (flags & VIR_DOMAIN_AFFECT_LIVE)
vshError(ctl, "%s", _("cannot get vcpupin for offline domain"));
else
vshError(ctl, "%s", _("cannot get vcpupin for transient domain"));
}
goto cleanup;
}
cpumap = vshMalloc(ctl, ncpus * cpumaplen);
if ((ncpus = virDomainGetVcpuPinInfo(dom, ncpus, cpumap,
cpumaplen, flags)) >= 0) {
vshPrintExtra(ctl, "%s %s\n", _("VCPU:"), _("CPU Affinity"));
vshPrintExtra(ctl, "----------------------------------\n");
for (i = 0; i < ncpus; i++) {
@ -6530,17 +6526,13 @@ cmdVcpuPin(vshControl *ctl, const vshCmd *cmd)
continue;
vshPrint(ctl, "%4zu: ", i);
ret = vshPrintPinInfo(cpumaps, cpumaplen, maxcpu, i);
ret = vshPrintPinInfo(cpumap, cpumaplen, maxcpu, i);
vshPrint(ctl, "\n");
if (!ret)
break;
}
}
VIR_FREE(cpumaps);
goto cleanup;
}
} else {
/* Pin mode: pinning specified vcpu to specified physical cpus*/
if (!(cpumap = vshParseCPUList(ctl, cpulist, maxcpu, cpumaplen)))
goto cleanup;
@ -6552,8 +6544,9 @@ cmdVcpuPin(vshControl *ctl, const vshCmd *cmd)
if (virDomainPinVcpuFlags(dom, vcpu, cpumap, cpumaplen, flags) != 0)
goto cleanup;
}
ret = true;
}
cleanup:
VIR_FREE(cpumap);
virDomainFree(dom);