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Commit | Line | Data |
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d786a274 SR |
1 | package PVE::QemuServer::CPUConfig; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | ||
6 | use PVE::JSONSchema; | |
b3e89488 | 7 | use PVE::Cluster qw(cfs_register_file cfs_read_file); |
d786a274 SR |
8 | use PVE::QemuServer::Helpers qw(min_version); |
9 | ||
b3e89488 | 10 | use base qw(PVE::SectionConfig Exporter); |
d786a274 SR |
11 | |
12 | our @EXPORT_OK = qw( | |
13 | print_cpu_device | |
14 | get_cpu_options | |
15 | ); | |
16 | ||
b3e89488 SR |
17 | # under certain race-conditions, this module might be loaded before pve-cluster |
18 | # has started completely, so ensure we don't prevent the FUSE mount with our dir | |
1dbe979c | 19 | if (PVE::Cluster::check_cfs_is_mounted(1)) { |
b3e89488 SR |
20 | mkdir "/etc/pve/virtual-guest"; |
21 | } | |
22 | ||
23 | my $default_filename = "virtual-guest/cpu-models.conf"; | |
d1901fe2 TL |
24 | cfs_register_file( |
25 | $default_filename, | |
26 | sub { PVE::QemuServer::CPUConfig->parse_config(@_); }, | |
27 | sub { PVE::QemuServer::CPUConfig->write_config(@_); }, | |
28 | ); | |
b3e89488 SR |
29 | |
30 | sub load_custom_model_conf { | |
31 | return cfs_read_file($default_filename); | |
32 | } | |
33 | ||
1359e23f AD |
34 | #builtin models : reported-model is mandatory |
35 | my $builtin_models = { | |
36 | 'x86-64-v2' => { | |
37 | 'reported-model' => 'qemu64', | |
38 | flags => "+popcnt;+pni;+sse4.1;+sse4.2;+ssse3", | |
39 | }, | |
40 | 'x86-64-v2-AES' => { | |
41 | 'reported-model' => 'qemu64', | |
42 | flags => "+aes;+popcnt;+pni;+sse4.1;+sse4.2;+ssse3", | |
43 | }, | |
44 | 'x86-64-v3' => { | |
45 | 'reported-model' => 'qemu64', | |
46 | flags => "+aes;+popcnt;+pni;+sse4.1;+sse4.2;+ssse3;+avx;+avx2;+bmi1;+bmi2;+f16c;+fma;+abm;+movbe;+xsave", | |
47 | }, | |
48 | 'x86-64-v4' => { | |
49 | 'reported-model' => 'qemu64', | |
50 | flags => "+aes;+popcnt;+pni;+sse4.1;+sse4.2;+ssse3;+avx;+avx2;+bmi1;+bmi2;+f16c;+fma;+abm;+movbe;+xsave;+avx512f;+avx512bw;+avx512cd;+avx512dq;+avx512vl", | |
51 | }, | |
52 | }; | |
53 | ||
0d6962f9 TL |
54 | my $depreacated_cpu_map = { |
55 | # there never was such a client CPU, so map it to the server one for backward compat | |
56 | 'Icelake-Client' => 'Icelake-Server', | |
57 | 'Icelake-Client-noTSX' => 'Icelake-Server-noTSX', | |
58 | }; | |
59 | ||
d786a274 SR |
60 | my $cpu_vendor_list = { |
61 | # Intel CPUs | |
62 | 486 => 'GenuineIntel', | |
63 | pentium => 'GenuineIntel', | |
64 | pentium2 => 'GenuineIntel', | |
65 | pentium3 => 'GenuineIntel', | |
66 | coreduo => 'GenuineIntel', | |
67 | core2duo => 'GenuineIntel', | |
68 | Conroe => 'GenuineIntel', | |
69 | Penryn => 'GenuineIntel', | |
70 | Nehalem => 'GenuineIntel', | |
71 | 'Nehalem-IBRS' => 'GenuineIntel', | |
72 | Westmere => 'GenuineIntel', | |
73 | 'Westmere-IBRS' => 'GenuineIntel', | |
74 | SandyBridge => 'GenuineIntel', | |
75 | 'SandyBridge-IBRS' => 'GenuineIntel', | |
76 | IvyBridge => 'GenuineIntel', | |
77 | 'IvyBridge-IBRS' => 'GenuineIntel', | |
78 | Haswell => 'GenuineIntel', | |
79 | 'Haswell-IBRS' => 'GenuineIntel', | |
80 | 'Haswell-noTSX' => 'GenuineIntel', | |
81 | 'Haswell-noTSX-IBRS' => 'GenuineIntel', | |
82 | Broadwell => 'GenuineIntel', | |
83 | 'Broadwell-IBRS' => 'GenuineIntel', | |
84 | 'Broadwell-noTSX' => 'GenuineIntel', | |
85 | 'Broadwell-noTSX-IBRS' => 'GenuineIntel', | |
86 | 'Skylake-Client' => 'GenuineIntel', | |
87 | 'Skylake-Client-IBRS' => 'GenuineIntel', | |
bb84db9d | 88 | 'Skylake-Client-noTSX-IBRS' => 'GenuineIntel', |
d786a274 SR |
89 | 'Skylake-Server' => 'GenuineIntel', |
90 | 'Skylake-Server-IBRS' => 'GenuineIntel', | |
bb84db9d | 91 | 'Skylake-Server-noTSX-IBRS' => 'GenuineIntel', |
d786a274 | 92 | 'Cascadelake-Server' => 'GenuineIntel', |
bb84db9d | 93 | 'Cascadelake-Server-noTSX' => 'GenuineIntel', |
d786a274 | 94 | KnightsMill => 'GenuineIntel', |
0d6962f9 TL |
95 | 'Icelake-Client' => 'GenuineIntel', # depreacated, removed with QEMU 7.1 |
96 | 'Icelake-Client-noTSX' => 'GenuineIntel', # depreacated, removed with QEMU 7.1 | |
bb84db9d | 97 | 'Icelake-Server' => 'GenuineIntel', |
d0cdb1de | 98 | 'Icelake-Server-noTSX' => 'GenuineIntel', |
d786a274 SR |
99 | |
100 | # AMD CPUs | |
101 | athlon => 'AuthenticAMD', | |
102 | phenom => 'AuthenticAMD', | |
103 | Opteron_G1 => 'AuthenticAMD', | |
104 | Opteron_G2 => 'AuthenticAMD', | |
105 | Opteron_G3 => 'AuthenticAMD', | |
106 | Opteron_G4 => 'AuthenticAMD', | |
107 | Opteron_G5 => 'AuthenticAMD', | |
108 | EPYC => 'AuthenticAMD', | |
109 | 'EPYC-IBPB' => 'AuthenticAMD', | |
8cea210f | 110 | 'EPYC-Rome' => 'AuthenticAMD', |
9b1971c5 | 111 | 'EPYC-Milan' => 'AuthenticAMD', |
d786a274 SR |
112 | |
113 | # generic types, use vendor from host node | |
114 | host => 'default', | |
115 | kvm32 => 'default', | |
116 | kvm64 => 'default', | |
117 | qemu32 => 'default', | |
118 | qemu64 => 'default', | |
119 | max => 'default', | |
120 | }; | |
121 | ||
122 | my @supported_cpu_flags = ( | |
123 | 'pcid', | |
124 | 'spec-ctrl', | |
125 | 'ibpb', | |
126 | 'ssbd', | |
127 | 'virt-ssbd', | |
128 | 'amd-ssbd', | |
129 | 'amd-no-ssb', | |
130 | 'pdpe1gb', | |
131 | 'md-clear', | |
132 | 'hv-tlbflush', | |
133 | 'hv-evmcs', | |
134 | 'aes' | |
135 | ); | |
5d008ad3 SR |
136 | my $cpu_flag_supported_re = qr/([+-])(@{[join('|', @supported_cpu_flags)]})/; |
137 | my $cpu_flag_any_re = qr/([+-])([a-zA-Z0-9\-_\.]+)/; | |
d786a274 | 138 | |
c15b5971 | 139 | our $qemu_cmdline_cpu_re = qr/^((?>[+-]?[\w\-\._=]+,?)+)$/; |
58c64ad5 | 140 | |
5d008ad3 | 141 | my $cpu_fmt = { |
d786a274 | 142 | cputype => { |
b3e89488 | 143 | description => "Emulated CPU type. Can be default or custom name (custom model names must be prefixed with 'custom-').", |
d786a274 | 144 | type => 'string', |
b3e89488 | 145 | format_description => 'string', |
d786a274 SR |
146 | default => 'kvm64', |
147 | default_key => 1, | |
b3e89488 SR |
148 | optional => 1, |
149 | }, | |
150 | 'reported-model' => { | |
151 | description => "CPU model and vendor to report to the guest. Must be a QEMU/KVM supported model." | |
11f9264f | 152 | ." Only valid for custom CPU model definitions, default models will always report themselves to the guest OS.", |
b3e89488 SR |
153 | type => 'string', |
154 | enum => [ sort { lc("$a") cmp lc("$b") } keys %$cpu_vendor_list ], | |
155 | default => 'kvm64', | |
156 | optional => 1, | |
d786a274 SR |
157 | }, |
158 | hidden => { | |
159 | description => "Do not identify as a KVM virtual machine.", | |
160 | type => 'boolean', | |
161 | optional => 1, | |
162 | default => 0 | |
163 | }, | |
164 | 'hv-vendor-id' => { | |
165 | type => 'string', | |
166 | pattern => qr/[a-zA-Z0-9]{1,12}/, | |
167 | format_description => 'vendor-id', | |
168 | description => 'The Hyper-V vendor ID. Some drivers or programs inside Windows guests need a specific ID.', | |
169 | optional => 1, | |
170 | }, | |
171 | flags => { | |
11f9264f TL |
172 | description => "List of additional CPU flags separated by ';'. Use '+FLAG' to enable," |
173 | ." '-FLAG' to disable a flag. Custom CPU models can specify any flag supported by" | |
174 | ." QEMU/KVM, VM-specific flags must be from the following set for security reasons: " | |
175 | . join(', ', @supported_cpu_flags), | |
d786a274 SR |
176 | format_description => '+FLAG[;-FLAG...]', |
177 | type => 'string', | |
5d008ad3 | 178 | pattern => qr/$cpu_flag_any_re(;$cpu_flag_any_re)*/, |
d786a274 SR |
179 | optional => 1, |
180 | }, | |
9f9792d3 SR |
181 | 'phys-bits' => { |
182 | type => 'string', | |
183 | format => 'pve-phys-bits', | |
7b8c4de3 | 184 | format_description => '8-64|host', |
11f9264f TL |
185 | description => "The physical memory address bits that are reported to the guest OS. Should" |
186 | ." be smaller or equal to the host's. Set to 'host' to use value from host CPU, but" | |
187 | ." note that doing so will break live migration to CPUs with other values.", | |
9f9792d3 SR |
188 | optional => 1, |
189 | }, | |
d786a274 SR |
190 | }; |
191 | ||
9f9792d3 SR |
192 | PVE::JSONSchema::register_format('pve-phys-bits', \&parse_phys_bits); |
193 | sub parse_phys_bits { | |
194 | my ($str, $noerr) = @_; | |
195 | ||
196 | my $err_msg = "value must be an integer between 8 and 64 or 'host'\n"; | |
197 | ||
198 | if ($str !~ m/^(host|\d{1,2})$/) { | |
199 | die $err_msg if !$noerr; | |
d1c1af4b | 200 | return; |
9f9792d3 SR |
201 | } |
202 | ||
203 | if ($str =~ m/^\d+$/ && (int($str) < 8 || int($str) > 64)) { | |
204 | die $err_msg if !$noerr; | |
d1c1af4b | 205 | return; |
9f9792d3 SR |
206 | } |
207 | ||
208 | return $str; | |
209 | } | |
210 | ||
5d008ad3 SR |
211 | # $cpu_fmt describes both the CPU config passed as part of a VM config, as well |
212 | # as the definition of a custom CPU model. There are some slight differences | |
7b8c4de3 SR |
213 | # though, which we catch in the custom validation functions below. |
214 | PVE::JSONSchema::register_format('pve-cpu-conf', $cpu_fmt, \&validate_cpu_conf); | |
215 | sub validate_cpu_conf { | |
216 | my ($cpu) = @_; | |
05eae0f2 | 217 | # required, but can't be forced in schema since it's encoded in section header for custom models |
7b8c4de3 | 218 | die "CPU is missing cputype\n" if !$cpu->{cputype}; |
b2e813a6 | 219 | return $cpu; |
5d008ad3 | 220 | } |
7b8c4de3 SR |
221 | PVE::JSONSchema::register_format('pve-vm-cpu-conf', $cpu_fmt, \&validate_vm_cpu_conf); |
222 | sub validate_vm_cpu_conf { | |
223 | my ($cpu) = @_; | |
5d008ad3 | 224 | |
7b8c4de3 | 225 | validate_cpu_conf($cpu); |
5d008ad3 SR |
226 | |
227 | my $cputype = $cpu->{cputype}; | |
228 | ||
229 | # a VM-specific config is only valid if the cputype exists | |
230 | if (is_custom_model($cputype)) { | |
7b8c4de3 SR |
231 | # dies on unknown model |
232 | get_custom_model($cputype); | |
5d008ad3 | 233 | } else { |
7b8c4de3 | 234 | die "Built-in cputype '$cputype' is not defined (missing 'custom-' prefix?)\n" |
1359e23f | 235 | if !defined($cpu_vendor_list->{$cputype}) && !defined($builtin_models->{$cputype}); |
5d008ad3 SR |
236 | } |
237 | ||
238 | # in a VM-specific config, certain properties are limited/forbidden | |
239 | ||
7b8c4de3 | 240 | die "VM-specific CPU flags must be a subset of: @{[join(', ', @supported_cpu_flags)]}\n" |
4893f9b9 | 241 | if ($cpu->{flags} && $cpu->{flags} !~ m/^$cpu_flag_supported_re(;$cpu_flag_supported_re)*$/); |
5d008ad3 SR |
242 | |
243 | die "Property 'reported-model' not allowed in VM-specific CPU config.\n" | |
244 | if defined($cpu->{'reported-model'}); | |
245 | ||
246 | return $cpu; | |
247 | } | |
248 | ||
b3e89488 SR |
249 | # Section config settings |
250 | my $defaultData = { | |
251 | # shallow copy, since SectionConfig modifies propertyList internally | |
252 | propertyList => { %$cpu_fmt }, | |
253 | }; | |
254 | ||
255 | sub private { | |
256 | return $defaultData; | |
257 | } | |
258 | ||
259 | sub options { | |
260 | return { %$cpu_fmt }; | |
261 | } | |
262 | ||
263 | sub type { | |
264 | return 'cpu-model'; | |
265 | } | |
266 | ||
267 | sub parse_section_header { | |
268 | my ($class, $line) = @_; | |
269 | ||
270 | my ($type, $sectionId, $errmsg, $config) = | |
271 | $class->SUPER::parse_section_header($line); | |
272 | ||
d1c1af4b | 273 | return if !$type; |
b3e89488 SR |
274 | return ($type, $sectionId, $errmsg, { |
275 | # name is given by section header, and we can always prepend 'custom-' | |
276 | # since we're reading the custom CPU file | |
277 | cputype => "custom-$sectionId", | |
278 | }); | |
279 | } | |
280 | ||
281 | sub write_config { | |
282 | my ($class, $filename, $cfg) = @_; | |
283 | ||
284 | mkdir "/etc/pve/virtual-guest"; | |
285 | ||
286 | for my $model (keys %{$cfg->{ids}}) { | |
287 | my $model_conf = $cfg->{ids}->{$model}; | |
288 | ||
289 | die "internal error: tried saving built-in CPU model (or missing prefix): $model_conf->{cputype}\n" | |
290 | if !is_custom_model($model_conf->{cputype}); | |
291 | ||
292 | die "internal error: tried saving custom cpumodel with cputype (ignoring prefix: $model_conf->{cputype}) not equal to \$cfg->ids entry ($model)\n" | |
293 | if "custom-$model" ne $model_conf->{cputype}; | |
294 | ||
295 | # saved in section header | |
296 | delete $model_conf->{cputype}; | |
297 | } | |
298 | ||
299 | $class->SUPER::write_config($filename, $cfg); | |
300 | } | |
301 | ||
1b7824d3 SR |
302 | sub add_cpu_json_properties { |
303 | my ($prop) = @_; | |
304 | ||
305 | foreach my $opt (keys %$cpu_fmt) { | |
306 | $prop->{$opt} = $cpu_fmt->{$opt}; | |
307 | } | |
308 | ||
309 | return $prop; | |
310 | } | |
311 | ||
a73cc993 SR |
312 | sub get_cpu_models { |
313 | my ($include_custom) = @_; | |
314 | ||
315 | my $models = []; | |
316 | ||
317 | for my $default_model (keys %{$cpu_vendor_list}) { | |
318 | push @$models, { | |
319 | name => $default_model, | |
320 | custom => 0, | |
321 | vendor => $cpu_vendor_list->{$default_model}, | |
322 | }; | |
323 | } | |
324 | ||
1359e23f AD |
325 | for my $model (keys %{$builtin_models}) { |
326 | my $reported_model = $builtin_models->{$model}->{'reported-model'}; | |
327 | my $vendor = $cpu_vendor_list->{$reported_model}; | |
328 | push @$models, { | |
329 | name => $model, | |
330 | custom => 0, | |
331 | vendor => $vendor, | |
332 | }; | |
333 | } | |
334 | ||
a73cc993 SR |
335 | return $models if !$include_custom; |
336 | ||
337 | my $conf = load_custom_model_conf(); | |
338 | for my $custom_model (keys %{$conf->{ids}}) { | |
339 | my $reported_model = $conf->{ids}->{$custom_model}->{'reported-model'}; | |
340 | $reported_model //= $cpu_fmt->{'reported-model'}->{default}; | |
341 | my $vendor = $cpu_vendor_list->{$reported_model}; | |
342 | push @$models, { | |
343 | name => "custom-$custom_model", | |
344 | custom => 1, | |
345 | vendor => $vendor, | |
346 | }; | |
347 | } | |
348 | ||
349 | return $models; | |
350 | } | |
351 | ||
b3e89488 SR |
352 | sub is_custom_model { |
353 | my ($cputype) = @_; | |
354 | return $cputype =~ m/^custom-/; | |
355 | } | |
356 | ||
357 | # Use this to get a single model in the format described by $cpu_fmt. | |
358 | # Allows names with and without custom- prefix. | |
359 | sub get_custom_model { | |
360 | my ($name, $noerr) = @_; | |
361 | ||
362 | $name =~ s/^custom-//; | |
363 | my $conf = load_custom_model_conf(); | |
364 | ||
365 | my $entry = $conf->{ids}->{$name}; | |
366 | if (!defined($entry)) { | |
367 | die "Custom cputype '$name' not found\n" if !$noerr; | |
d1c1af4b | 368 | return; |
b3e89488 SR |
369 | } |
370 | ||
371 | my $model = {}; | |
372 | for my $property (keys %$cpu_fmt) { | |
373 | if (my $value = $entry->{$property}) { | |
374 | $model->{$property} = $value; | |
375 | } | |
376 | } | |
377 | ||
378 | return $model; | |
379 | } | |
380 | ||
d786a274 SR |
381 | # Print a QEMU device node for a given VM configuration for hotplugging CPUs |
382 | sub print_cpu_device { | |
383 | my ($conf, $id) = @_; | |
384 | ||
385 | my $kvm = $conf->{kvm} // 1; | |
386 | my $cpu = $kvm ? "kvm64" : "qemu64"; | |
387 | if (my $cputype = $conf->{cpu}) { | |
7b8c4de3 | 388 | my $cpuconf = PVE::JSONSchema::parse_property_string('pve-vm-cpu-conf', $cputype) |
d786a274 SR |
389 | or die "Cannot parse cpu description: $cputype\n"; |
390 | $cpu = $cpuconf->{cputype}; | |
b3e89488 | 391 | |
1359e23f AD |
392 | if (my $model = $builtin_models->{$cpu}) { |
393 | $cpu = $model->{'reported-model'}; | |
394 | } elsif (is_custom_model($cputype)) { | |
b3e89488 SR |
395 | my $custom_cpu = get_custom_model($cpu); |
396 | ||
b0ab3463 | 397 | $cpu = $custom_cpu->{'reported-model'} // $cpu_fmt->{'reported-model'}->{default}; |
adc67fe9 TL |
398 | } |
399 | if (my $replacement_type = $depreacated_cpu_map->{$cpu}) { | |
0d6962f9 | 400 | $cpu = $replacement_type; |
b3e89488 | 401 | } |
d786a274 SR |
402 | } |
403 | ||
404 | my $cores = $conf->{cores} || 1; | |
405 | ||
406 | my $current_core = ($id - 1) % $cores; | |
407 | my $current_socket = int(($id - 1 - $current_core)/$cores); | |
408 | ||
b0ab3463 | 409 | # FIXME: hot plugging other architectures like our unofficial arch64 support? |
d786a274 SR |
410 | return "$cpu-x86_64-cpu,id=cpu$id,socket-id=$current_socket,core-id=$current_core,thread-id=0"; |
411 | } | |
412 | ||
45619185 SR |
413 | # Resolves multiple arrays of hashes representing CPU flags with metadata to a |
414 | # single string in QEMU "-cpu" compatible format. Later arrays have higher | |
415 | # priority. | |
416 | # | |
417 | # Hashes take the following format: | |
418 | # { | |
419 | # aes => { | |
420 | # op => "+", # defaults to "" if undefined | |
421 | # reason => "to support AES acceleration", # for override warnings | |
422 | # value => "" # needed for kvm=off (value: off) etc... | |
423 | # }, | |
424 | # ... | |
425 | # } | |
426 | sub resolve_cpu_flags { | |
427 | my $flags = {}; | |
428 | ||
429 | for my $hash (@_) { | |
430 | for my $flag_name (keys %$hash) { | |
431 | my $flag = $hash->{$flag_name}; | |
432 | my $old_flag = $flags->{$flag_name}; | |
433 | ||
434 | $flag->{op} //= ""; | |
435 | $flag->{reason} //= "unknown origin"; | |
436 | ||
437 | if ($old_flag) { | |
438 | my $value_changed = (defined($flag->{value}) != defined($old_flag->{value})) || | |
439 | (defined($flag->{value}) && $flag->{value} ne $old_flag->{value}); | |
440 | ||
441 | if ($old_flag->{op} eq $flag->{op} && !$value_changed) { | |
442 | $flags->{$flag_name}->{reason} .= " & $flag->{reason}"; | |
443 | next; | |
444 | } | |
445 | ||
446 | my $old = print_cpuflag_hash($flag_name, $flags->{$flag_name}); | |
447 | my $new = print_cpuflag_hash($flag_name, $flag); | |
448 | warn "warning: CPU flag/setting $new overwrites $old\n"; | |
449 | } | |
450 | ||
451 | $flags->{$flag_name} = $flag; | |
452 | } | |
453 | } | |
454 | ||
455 | my $flag_str = ''; | |
456 | # sort for command line stability | |
457 | for my $flag_name (sort keys %$flags) { | |
458 | $flag_str .= ','; | |
459 | $flag_str .= $flags->{$flag_name}->{op}; | |
460 | $flag_str .= $flag_name; | |
461 | $flag_str .= "=$flags->{$flag_name}->{value}" | |
462 | if $flags->{$flag_name}->{value}; | |
463 | } | |
464 | ||
465 | return $flag_str; | |
466 | } | |
467 | ||
468 | sub print_cpuflag_hash { | |
469 | my ($flag_name, $flag) = @_; | |
470 | my $formatted = "'$flag->{op}$flag_name"; | |
471 | $formatted .= "=$flag->{value}" if defined($flag->{value}); | |
472 | $formatted .= "'"; | |
473 | $formatted .= " ($flag->{reason})" if defined($flag->{reason}); | |
474 | return $formatted; | |
475 | } | |
476 | ||
c4581b9c SR |
477 | sub parse_cpuflag_list { |
478 | my ($re, $reason, $flaglist) = @_; | |
479 | ||
480 | my $res = {}; | |
481 | return $res if !$flaglist; | |
482 | ||
483 | foreach my $flag (split(";", $flaglist)) { | |
4893f9b9 | 484 | if ($flag =~ m/^$re$/) { |
c4581b9c SR |
485 | $res->{$2} = { op => $1, reason => $reason }; |
486 | } | |
487 | } | |
488 | ||
489 | return $res; | |
490 | } | |
491 | ||
d786a274 SR |
492 | # Calculate QEMU's '-cpu' argument from a given VM configuration |
493 | sub get_cpu_options { | |
494 | my ($conf, $arch, $kvm, $kvm_off, $machine_version, $winversion, $gpu_passthrough) = @_; | |
495 | ||
c4581b9c | 496 | my $cputype = $kvm ? "kvm64" : "qemu64"; |
d786a274 | 497 | if ($arch eq 'aarch64') { |
c4581b9c | 498 | $cputype = 'cortex-a57'; |
d786a274 SR |
499 | } |
500 | ||
c4581b9c SR |
501 | my $cpu = {}; |
502 | my $custom_cpu; | |
1359e23f | 503 | my $builtin_cpu; |
c4581b9c SR |
504 | my $hv_vendor_id; |
505 | if (my $cpu_prop_str = $conf->{cpu}) { | |
7b8c4de3 | 506 | $cpu = PVE::JSONSchema::parse_property_string('pve-vm-cpu-conf', $cpu_prop_str) |
c4581b9c | 507 | or die "Cannot parse cpu description: $cpu_prop_str\n"; |
d786a274 | 508 | |
c4581b9c | 509 | $cputype = $cpu->{cputype}; |
1359e23f AD |
510 | if (my $model = $builtin_models->{$cputype}) { |
511 | $cputype = $model->{'reported-model'}; | |
512 | $builtin_cpu->{flags} = $model->{'flags'}; | |
513 | } elsif (is_custom_model($cputype)) { | |
c4581b9c | 514 | $custom_cpu = get_custom_model($cputype); |
d786a274 | 515 | |
b0ab3463 TL |
516 | $cputype = $custom_cpu->{'reported-model'} // $cpu_fmt->{'reported-model'}->{default}; |
517 | $kvm_off = $custom_cpu->{hidden} if defined($custom_cpu->{hidden}); | |
c4581b9c SR |
518 | $hv_vendor_id = $custom_cpu->{'hv-vendor-id'}; |
519 | } | |
d786a274 | 520 | |
0d6962f9 TL |
521 | if (my $replacement_type = $depreacated_cpu_map->{$cputype}) { |
522 | $cputype = $replacement_type; | |
523 | } | |
524 | ||
c4581b9c | 525 | # VM-specific settings override custom CPU config |
b0ab3463 TL |
526 | $kvm_off = $cpu->{hidden} if defined($cpu->{hidden}); |
527 | $hv_vendor_id = $cpu->{'hv-vendor-id'} if defined($cpu->{'hv-vendor-id'}); | |
c4581b9c | 528 | } |
d786a274 | 529 | |
f7d1505b TL |
530 | my $pve_flags = get_pve_cpu_flags($conf, $kvm, $cputype, $arch, $machine_version); |
531 | ||
532 | my $hv_flags = $kvm | |
533 | ? get_hyperv_enlightenments( | |
534 | $winversion, | |
535 | $machine_version, | |
536 | $conf->{bios}, | |
537 | $gpu_passthrough, | |
538 | $hv_vendor_id, | |
539 | ) | |
540 | : undef; | |
c4581b9c | 541 | |
1359e23f AD |
542 | my $builtin_cputype_flags = parse_cpuflag_list( |
543 | $cpu_flag_any_re, "set by builtin CPU model", $builtin_cpu->{flags}); | |
544 | ||
11f9264f TL |
545 | my $custom_cputype_flags = parse_cpuflag_list( |
546 | $cpu_flag_any_re, "set by custom CPU model", $custom_cpu->{flags}); | |
c4581b9c | 547 | |
11f9264f TL |
548 | my $vm_flags = parse_cpuflag_list( |
549 | $cpu_flag_supported_re, "manually set for VM", $cpu->{flags}); | |
c4581b9c SR |
550 | |
551 | my $pve_forced_flags = {}; | |
552 | $pve_forced_flags->{'enforce'} = { | |
553 | reason => "error if requested CPU settings not available", | |
554 | } if $cputype ne 'host' && $kvm && $arch eq 'x86_64'; | |
555 | $pve_forced_flags->{'kvm'} = { | |
556 | value => "off", | |
557 | reason => "hide KVM virtualization from guest", | |
558 | } if $kvm_off; | |
559 | ||
560 | # $cputype is the "reported-model" for custom types, so we can just look up | |
561 | # the vendor in the default list | |
562 | my $cpu_vendor = $cpu_vendor_list->{$cputype}; | |
563 | if ($cpu_vendor) { | |
564 | $pve_forced_flags->{'vendor'} = { | |
565 | value => $cpu_vendor, | |
566 | } if $cpu_vendor ne 'default'; | |
567 | } elsif ($arch ne 'aarch64') { | |
568 | die "internal error"; # should not happen | |
d786a274 SR |
569 | } |
570 | ||
c4581b9c | 571 | my $cpu_str = $cputype; |
d786a274 | 572 | |
c4581b9c | 573 | # will be resolved in parameter order |
11f9264f | 574 | $cpu_str .= resolve_cpu_flags( |
1359e23f | 575 | $pve_flags, $hv_flags, $builtin_cputype_flags, $custom_cputype_flags, $vm_flags, $pve_forced_flags); |
d786a274 | 576 | |
9f9792d3 SR |
577 | my $phys_bits = ''; |
578 | foreach my $conf ($custom_cpu, $cpu) { | |
579 | next if !defined($conf); | |
580 | my $conf_val = $conf->{'phys-bits'}; | |
581 | next if !$conf_val; | |
582 | if ($conf_val eq 'host') { | |
583 | $phys_bits = ",host-phys-bits=true"; | |
584 | } else { | |
585 | $phys_bits = ",phys-bits=$conf_val"; | |
586 | } | |
587 | } | |
588 | $cpu_str .= $phys_bits; | |
589 | ||
c4581b9c SR |
590 | return ('-cpu', $cpu_str); |
591 | } | |
d786a274 | 592 | |
c4581b9c SR |
593 | # Some hardcoded flags required by certain configurations |
594 | sub get_pve_cpu_flags { | |
595 | my ($conf, $kvm, $cputype, $arch, $machine_version) = @_; | |
596 | ||
597 | my $pve_flags = {}; | |
598 | my $pve_msg = "set by PVE;"; | |
599 | ||
600 | $pve_flags->{'lahf_lm'} = { | |
601 | op => '+', | |
602 | reason => "$pve_msg to support Windows 8.1+", | |
603 | } if $cputype eq 'kvm64' && $arch eq 'x86_64'; | |
604 | ||
605 | $pve_flags->{'x2apic'} = { | |
606 | op => '-', | |
607 | reason => "$pve_msg incompatible with Solaris", | |
608 | } if $conf->{ostype} && $conf->{ostype} eq 'solaris'; | |
609 | ||
610 | $pve_flags->{'sep'} = { | |
611 | op => '+', | |
612 | reason => "$pve_msg to support Windows 8+ and improve Windows XP+", | |
613 | } if $cputype eq 'kvm64' || $cputype eq 'kvm32'; | |
614 | ||
615 | $pve_flags->{'rdtscp'} = { | |
616 | op => '-', | |
617 | reason => "$pve_msg broken on AMD Opteron", | |
618 | } if $cputype =~ m/^Opteron/; | |
619 | ||
620 | if (min_version($machine_version, 2, 3) && $kvm && $arch eq 'x86_64') { | |
621 | $pve_flags->{'kvm_pv_unhalt'} = { | |
622 | op => '+', | |
623 | reason => "$pve_msg to improve Linux guest spinlock performance", | |
624 | }; | |
625 | $pve_flags->{'kvm_pv_eoi'} = { | |
626 | op => '+', | |
627 | reason => "$pve_msg to improve Linux guest interrupt performance", | |
628 | }; | |
d786a274 SR |
629 | } |
630 | ||
c4581b9c | 631 | return $pve_flags; |
d786a274 SR |
632 | } |
633 | ||
c4581b9c SR |
634 | sub get_hyperv_enlightenments { |
635 | my ($winversion, $machine_version, $bios, $gpu_passthrough, $hv_vendor_id) = @_; | |
d786a274 SR |
636 | |
637 | return if $winversion < 6; | |
638 | return if $bios && $bios eq 'ovmf' && $winversion < 8; | |
639 | ||
c4581b9c SR |
640 | my $flags = {}; |
641 | my $default_reason = "automatic Hyper-V enlightenment for Windows"; | |
642 | my $flagfn = sub { | |
643 | my ($flag, $value, $reason) = @_; | |
644 | $flags->{$flag} = { | |
645 | reason => $reason // $default_reason, | |
646 | value => $value, | |
647 | } | |
648 | }; | |
649 | ||
650 | my $hv_vendor_set = defined($hv_vendor_id); | |
651 | if ($gpu_passthrough || $hv_vendor_set) { | |
d786a274 | 652 | $hv_vendor_id //= 'proxmox'; |
c4581b9c SR |
653 | $flagfn->('hv_vendor_id', $hv_vendor_id, $hv_vendor_set ? |
654 | "custom hv_vendor_id set" : "NVIDIA workaround for GPU passthrough"); | |
d786a274 SR |
655 | } |
656 | ||
657 | if (min_version($machine_version, 2, 3)) { | |
c4581b9c SR |
658 | $flagfn->('hv_spinlocks', '0x1fff'); |
659 | $flagfn->('hv_vapic'); | |
660 | $flagfn->('hv_time'); | |
d786a274 | 661 | } else { |
c4581b9c | 662 | $flagfn->('hv_spinlocks', '0xffff'); |
d786a274 SR |
663 | } |
664 | ||
665 | if (min_version($machine_version, 2, 6)) { | |
c4581b9c SR |
666 | $flagfn->('hv_reset'); |
667 | $flagfn->('hv_vpindex'); | |
668 | $flagfn->('hv_runtime'); | |
d786a274 SR |
669 | } |
670 | ||
671 | if ($winversion >= 7) { | |
c4581b9c SR |
672 | my $win7_reason = $default_reason . " 7 and higher"; |
673 | $flagfn->('hv_relaxed', undef, $win7_reason); | |
d786a274 SR |
674 | |
675 | if (min_version($machine_version, 2, 12)) { | |
c4581b9c SR |
676 | $flagfn->('hv_synic', undef, $win7_reason); |
677 | $flagfn->('hv_stimer', undef, $win7_reason); | |
d786a274 SR |
678 | } |
679 | ||
680 | if (min_version($machine_version, 3, 1)) { | |
c4581b9c | 681 | $flagfn->('hv_ipi', undef, $win7_reason); |
d786a274 SR |
682 | } |
683 | } | |
c4581b9c SR |
684 | |
685 | return $flags; | |
d786a274 SR |
686 | } |
687 | ||
58c64ad5 SR |
688 | sub get_cpu_from_running_vm { |
689 | my ($pid) = @_; | |
690 | ||
691 | my $cmdline = PVE::QemuServer::Helpers::parse_cmdline($pid); | |
692 | die "could not read commandline of running machine\n" | |
693 | if !$cmdline->{cpu}->{value}; | |
694 | ||
695 | # sanitize and untaint value | |
696 | $cmdline->{cpu}->{value} =~ $qemu_cmdline_cpu_re; | |
697 | return $1; | |
698 | } | |
699 | ||
b3e89488 SR |
700 | __PACKAGE__->register(); |
701 | __PACKAGE__->init(); | |
702 | ||
d786a274 | 703 | 1; |