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cpu hotplug : add new cpu hotplug method for qemu 2.7

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Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
This commit is contained in:
Alexandre Derumier 2016-10-17 12:18:57 +02:00 committed by Wolfgang Bumiller
parent 1e881b75d8
commit eba3e64d2e
1 changed files with 25 additions and 3 deletions
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28
PVE/QemuServer.pm
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@ -3776,7 +3776,7 @@ sub qemu_cpu_hotplug {
my $currentvcpus = $conf->{vcpus} || $maxcpus;
if ($vcpus < $currentvcpus) {
if ($vcpus < $currentvcpus) {
if (qemu_machine_feature_enabled ($machine_type, undef, 2, 7)) {
@ -3806,8 +3806,30 @@ sub qemu_cpu_hotplug {
die "vcpus in running vm is different than configuration\n"
if scalar(@{$currentrunningvcpus}) != $currentvcpus;
for (my $i = $currentvcpus; $i < $vcpus; $i++) {
vm_mon_cmd($vmid, "cpu-add", id => int($i));
if (qemu_machine_feature_enabled ($machine_type, undef, 2, 7)) {
for (my $i = $currentvcpus+1; $i <= $vcpus; $i++) {
my $cpustr = print_cpu_device($conf, $i);
qemu_deviceadd($vmid, $cpustr);
my $retry = 0;
my $currentrunningvcpus = undef;
while (1) {
$currentrunningvcpus = vm_mon_cmd($vmid, "query-cpus");
last if scalar(@{$currentrunningvcpus}) == $i;
raise_param_exc({ "cpu hotplug" => "error hotplug cpu$i" }) if $retry > 10;
sleep 1;
$retry++;
}
#update conf after each succesfull cpu hotplug
$conf->{vcpus} = scalar(@{$currentrunningvcpus});
PVE::QemuConfig->write_config($vmid, $conf);
}
} else {
for (my $i = $currentvcpus; $i < $vcpus; $i++) {
vm_mon_cmd($vmid, "cpu-add", id => int($i));
}
}
}