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Commit | Line | Data |
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3392d6ca SR |
1 | package PVE::QemuServer::Machine; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | ||
2ea5fb7e | 6 | use PVE::QemuServer::Helpers; |
3392d6ca SR |
7 | use PVE::QemuServer::Monitor; |
8 | ||
9471e48b TL |
9 | # Bump this for VM HW layout changes during a release (where the QEMU machine |
10 | # version stays the same) | |
ac0077cc | 11 | our $PVE_MACHINE_VERSION = { |
b8fb1c03 | 12 | '4.1' => 2, |
ac0077cc | 13 | }; |
9471e48b | 14 | |
3392d6ca SR |
15 | sub machine_type_is_q35 { |
16 | my ($conf) = @_; | |
17 | ||
18 | return $conf->{machine} && ($conf->{machine} =~ m/q35/) ? 1 : 0; | |
19 | } | |
20 | ||
21 | # this only works if VM is running | |
22 | sub get_current_qemu_machine { | |
23 | my ($vmid) = @_; | |
24 | ||
25 | my $res = PVE::QemuServer::Monitor::mon_cmd($vmid, 'query-machines'); | |
26 | ||
9471e48b | 27 | my ($current, $pve_version, $default); |
3392d6ca SR |
28 | foreach my $e (@$res) { |
29 | $default = $e->{name} if $e->{'is-default'}; | |
30 | $current = $e->{name} if $e->{'is-current'}; | |
9471e48b | 31 | $pve_version = $e->{'pve-version'} if $e->{'pve-version'}; |
3392d6ca SR |
32 | } |
33 | ||
9471e48b TL |
34 | $current .= "+$pve_version" if $current && $pve_version; |
35 | ||
3392d6ca SR |
36 | # fallback to the default machine if current is not supported by qemu |
37 | return $current || $default || 'pc'; | |
38 | } | |
39 | ||
9471e48b TL |
40 | # returns a string with major.minor+pve<VERSION>, patch version-part is ignored |
41 | # as it's seldom ressembling a real QEMU machine type, so it would be '0' 99% of | |
42 | # the time anyway.. This explicitly separates pveversion from the machine. | |
2ea5fb7e | 43 | sub extract_version { |
9471e48b TL |
44 | my ($machine_type, $kvmversion) = @_; |
45 | ||
46 | if (defined($machine_type) && $machine_type =~ m/^(?:pc(?:-i440fx|-q35)?|virt)-(\d+)\.(\d+)(?:\.(\d+))?(\+pve\d+)?/) { | |
47 | my $versionstr = "$1.$2"; | |
48 | $versionstr .= $4 if $4; | |
49 | return $versionstr; | |
50 | } elsif (defined($kvmversion)) { | |
51 | if ($kvmversion =~ m/^(\d+)\.(\d+)/) { | |
ac0077cc SR |
52 | my $pvever = get_pve_version($kvmversion); |
53 | return "$1.$2+pve$pvever"; | |
9471e48b | 54 | } |
3392d6ca SR |
55 | } |
56 | ||
2ea5fb7e | 57 | return undef; |
3392d6ca SR |
58 | } |
59 | ||
2ea5fb7e | 60 | sub machine_version { |
9471e48b | 61 | my ($machine_type, $major, $minor, $pve) = @_; |
3392d6ca | 62 | |
2ea5fb7e | 63 | return PVE::QemuServer::Helpers::min_version( |
9471e48b | 64 | extract_version($machine_type), $major, $minor, $pve); |
3392d6ca SR |
65 | } |
66 | ||
ac0077cc SR |
67 | sub get_pve_version { |
68 | my ($verstr) = @_; | |
69 | ||
70 | if ($verstr =~ m/^(\d+\.\d+)/) { | |
71 | return $PVE_MACHINE_VERSION->{$1} // 0; | |
72 | } | |
73 | ||
74 | die "internal error: cannot get pve version for invalid string '$verstr'"; | |
75 | } | |
76 | ||
77 | sub can_run_pve_machine_version { | |
78 | my ($machine_version, $kvmversion) = @_; | |
79 | ||
80 | $machine_version =~ m/^(\d+)\.(\d+)(?:\+pve(\d+))$/; | |
81 | my $major = $1; | |
82 | my $minor = $2; | |
83 | my $pvever = $3; | |
84 | ||
85 | $kvmversion =~ m/(\d+)\.(\d+)/; | |
86 | return 0 if PVE::QemuServer::Helpers::version_cmp($1, $major, $2, $minor) < 0; | |
87 | ||
88 | # if $pvever is missing or 0, we definitely support it as long as we didn't | |
89 | # fail the QEMU version check above | |
90 | return 1 if !$pvever; | |
91 | ||
92 | my $max_supported = get_pve_version("$major.$minor"); | |
93 | return 1 if $max_supported >= $pvever; | |
94 | ||
95 | return 0; | |
96 | } | |
97 | ||
3392d6ca SR |
98 | # dies if a) VM not running or not exisiting b) Version query failed |
99 | # So, any defined return value is valid, any invalid state can be caught by eval | |
100 | sub runs_at_least_qemu_version { | |
101 | my ($vmid, $major, $minor, $extra) = @_; | |
102 | ||
103 | my $v = PVE::QemuServer::Monitor::mon_cmd($vmid, 'query-version'); | |
104 | die "could not query currently running version for VM $vmid\n" if !defined($v); | |
105 | $v = $v->{qemu}; | |
106 | ||
825ae5bc | 107 | return PVE::QemuServer::Helpers::version_cmp($v->{major}, $major, $v->{minor}, $minor, $v->{micro}, $extra) >= 0; |
3392d6ca SR |
108 | } |
109 | ||
110 | sub qemu_machine_pxe { | |
111 | my ($vmid, $conf) = @_; | |
112 | ||
113 | my $machine = get_current_qemu_machine($vmid); | |
114 | ||
115 | if ($conf->{machine} && $conf->{machine} =~ m/\.pxe$/) { | |
116 | $machine .= '.pxe'; | |
117 | } | |
118 | ||
119 | return $machine; | |
120 | } | |
121 | ||
122 | 1; |