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pve5to6: followup: improve coding style and outputs a bit

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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Thomas Lamprecht 2019-07-02 11:56:41 +02:00
parent 03f79391c0
commit 000acacacc
1 changed files with 15 additions and 12 deletions
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27
PVE/CLI/pve5to6.pm
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@ -160,14 +160,17 @@ sub get_vms_with_vmx {
flag => [],
};
my $vmlist = PVE::QemuServer::vzlist();
foreach my $vmid ( sort { $a <=> $b } keys %$vmlist ) {
my $pid = $vmlist->{$vmid}->{pid};
next if !$pid; # skip not running vms
my $cmdline = eval { PVE::Tools::file_get_contents("/proc/$pid/cmdline") };
if ($cmdline) {
my @args = split(/\0/, $cmdline);
for (my $i = 0; $i < scalar(@args); $i++) {
next if !$args[$i] || $args[$i] !~ m/^-?-cpu$/;
my $cpuarg = $args[$i+1];
if ($cpuarg =~ m/^(host|max)/) {
push @{$res->{cpu}}, $vmid;
@ -177,11 +180,15 @@ sub get_vms_with_vmx {
}
}
}
my $count = scalar(@{$res->{cpu}}) + scalar(@{$res->{flag}});
return ($count, $res);
$res = undef if (scalar(@{$res->{cpu}}) + scalar(@{$res->{flag}})) <= 0;
return $res;
}
sub check_kvm_nested {
log_info("Checking KVM nesting support, which breaks live migration for VMs using it..");
my $module_sysdir = "/sys/module";
if (-e "$module_sysdir/kvm_amd") {
$module_sysdir .= "/kvm_amd/parameters";
@ -195,21 +202,17 @@ sub check_kvm_nested {
if (-f "$module_sysdir/nested") {
my $val = eval { PVE::Tools::file_read_firstline("$module_sysdir/nested") };
if ($val && $val =~ m/Y|1/) {
my ($count, $list) = get_vms_with_vmx();
if (!$count) {
log_skip("KVM nested parameter set.\nVMs with cputype host/max " .
"or vmx/svm flag will not be able to live migrate to PVE 6.");
my $list = get_vms_with_vmx();
if (!defined($list)) {
log_pass("KVM nested parameter set, but currently no VM with a 'vmx' or 'svm' flag is running.");
} else {
my $warnmsg = "KVM nested parameter set.\n" .
"It will not be possible to live migrate following VMs to PVE6:\n";
my $warnmsg = "KVM nested enabled. It will not be possible to live migrate the following running VMs to PVE 6:\n";
if (@{$list->{cpu}}) {
$warnmsg .= "VMs with cputype host/max: " . join(',', @{$list->{cpu}}) . "\n";
$warnmsg .= " VMID(s) with cputype 'host' or 'max': " . join(',', @{$list->{cpu}}) . "\n";
}
if (@{$list->{flag}}) {
$warnmsg .= "VMs with cpu flag vmx/svm: " . join(',', @{$list->{flag}}) . "\n";
$warnmsg .= " VMID(s) with enforced cpu flag 'vmx' or 'svm': " . join(',', @{$list->{flag}}) . "\n";
}
log_warn($warnmsg);
}
} else {