From: Dominik Csapak <d.csapak@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [PATCH qemu-server v3 2/3] tests: improve multiarch build support by allowing re-init of cpu models
Date: Thu, 5 Feb 2026 15:17:12 +0100 [thread overview]
Message-ID: <20260205141959.3615131-3-d.csapak@proxmox.com> (raw)
In-Reply-To: <20260205141959.3615131-1-d.csapak@proxmox.com>
instead of simply saving 'host_arch','all_cpu_models' and
'cpu_models_by_arch' in the global package namespace, after initializing
directly in the module, use an initialization function and a getter to
generate this.
This has two advantages:
* Only the first use actually fills the package wide variable
(currently the $cpu_fmt uses this on module load)
* We can call the initialization manually in the tests where we need it
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
changes from v2:
* split out from first patch
* use getters that auto-initialize the global cpu model list
src/PVE/QemuServer/CPUConfig.pm | 272 ++++++++++++++-------------
src/test/run_config2command_tests.pl | 2 +
2 files changed, 148 insertions(+), 126 deletions(-)
diff --git a/src/PVE/QemuServer/CPUConfig.pm b/src/PVE/QemuServer/CPUConfig.pm
index 0218908e..165c48a7 100644
--- a/src/PVE/QemuServer/CPUConfig.pm
+++ b/src/PVE/QemuServer/CPUConfig.pm
@@ -25,8 +25,6 @@ our @EXPORT_OK = qw(
get_cvm_type
);
-my $host_arch = get_host_arch();
-
my $arch_desc = {
description => "Virtual processor architecture. Defaults to the host architecture.",
type => 'string',
@@ -100,130 +98,152 @@ my $cputypes_32bit = {
'qemu32' => 1,
};
-my $cpu_models_by_arch = {
- x86_64 => {
- # Intel CPUs
- 486 => 'GenuineIntel',
- pentium => 'GenuineIntel',
- pentium2 => 'GenuineIntel',
- pentium3 => 'GenuineIntel',
- coreduo => 'GenuineIntel',
- core2duo => 'GenuineIntel',
- Conroe => 'GenuineIntel',
- Penryn => 'GenuineIntel',
- Nehalem => 'GenuineIntel',
- 'Nehalem-IBRS' => 'GenuineIntel',
- Westmere => 'GenuineIntel',
- 'Westmere-IBRS' => 'GenuineIntel',
- SandyBridge => 'GenuineIntel',
- 'SandyBridge-IBRS' => 'GenuineIntel',
- IvyBridge => 'GenuineIntel',
- 'IvyBridge-IBRS' => 'GenuineIntel',
- Haswell => 'GenuineIntel',
- 'Haswell-IBRS' => 'GenuineIntel',
- 'Haswell-noTSX' => 'GenuineIntel',
- 'Haswell-noTSX-IBRS' => 'GenuineIntel',
- Broadwell => 'GenuineIntel',
- 'Broadwell-IBRS' => 'GenuineIntel',
- 'Broadwell-noTSX' => 'GenuineIntel',
- 'Broadwell-noTSX-IBRS' => 'GenuineIntel',
- 'Skylake-Client' => 'GenuineIntel',
- 'Skylake-Client-IBRS' => 'GenuineIntel',
- 'Skylake-Client-noTSX-IBRS' => 'GenuineIntel',
- 'Skylake-Client-v4' => 'GenuineIntel',
- 'Skylake-Server' => 'GenuineIntel',
- 'Skylake-Server-IBRS' => 'GenuineIntel',
- 'Skylake-Server-noTSX-IBRS' => 'GenuineIntel',
- 'Skylake-Server-v4' => 'GenuineIntel',
- 'Skylake-Server-v5' => 'GenuineIntel',
- 'Cascadelake-Server' => 'GenuineIntel',
- 'Cascadelake-Server-v2' => 'GenuineIntel',
- 'Cascadelake-Server-noTSX' => 'GenuineIntel',
- 'Cascadelake-Server-v4' => 'GenuineIntel',
- 'Cascadelake-Server-v5' => 'GenuineIntel',
- 'Cooperlake' => 'GenuineIntel',
- 'Cooperlake-v2' => 'GenuineIntel',
- KnightsMill => 'GenuineIntel',
- 'Icelake-Client' => 'GenuineIntel', # depreacated, removed with QEMU 7.1
- 'Icelake-Client-noTSX' => 'GenuineIntel', # depreacated, removed with QEMU 7.1
- 'Icelake-Server' => 'GenuineIntel',
- 'Icelake-Server-noTSX' => 'GenuineIntel',
- 'Icelake-Server-v3' => 'GenuineIntel',
- 'Icelake-Server-v4' => 'GenuineIntel',
- 'Icelake-Server-v5' => 'GenuineIntel',
- 'Icelake-Server-v6' => 'GenuineIntel',
- 'Icelake-Server-v7' => 'GenuineIntel',
- 'SapphireRapids' => 'GenuineIntel',
- 'SapphireRapids-v2' => 'GenuineIntel',
- 'SapphireRapids-v3' => 'GenuineIntel',
- 'SapphireRapids-v4' => 'GenuineIntel',
- 'GraniteRapids' => 'GenuineIntel',
- 'GraniteRapids-v2' => 'GenuineIntel',
- 'GraniteRapids-v3' => 'GenuineIntel',
- 'SierraForest' => 'GenuineIntel',
- 'SierraForest-v2' => 'GenuineIntel',
- 'SierraForest-v3' => 'GenuineIntel',
- 'ClearwaterForest' => 'GenuineIntel',
-
- # AMD CPUs
- athlon => 'AuthenticAMD',
- phenom => 'AuthenticAMD',
- Opteron_G1 => 'AuthenticAMD',
- Opteron_G2 => 'AuthenticAMD',
- Opteron_G3 => 'AuthenticAMD',
- Opteron_G4 => 'AuthenticAMD',
- Opteron_G5 => 'AuthenticAMD',
- EPYC => 'AuthenticAMD',
- 'EPYC-IBPB' => 'AuthenticAMD',
- 'EPYC-v3' => 'AuthenticAMD',
- 'EPYC-v4' => 'AuthenticAMD',
- 'EPYC-v5' => 'AuthenticAMD',
- 'EPYC-Rome' => 'AuthenticAMD',
- 'EPYC-Rome-v2' => 'AuthenticAMD',
- 'EPYC-Rome-v3' => 'AuthenticAMD',
- 'EPYC-Rome-v4' => 'AuthenticAMD',
- 'EPYC-Rome-v5' => 'AuthenticAMD',
- 'EPYC-Milan' => 'AuthenticAMD',
- 'EPYC-Milan-v2' => 'AuthenticAMD',
- 'EPYC-Milan-v3' => 'AuthenticAMD',
- 'EPYC-Genoa' => 'AuthenticAMD',
- 'EPYC-Genoa-v2' => 'AuthenticAMD',
- 'EPYC-Turin' => 'AuthenticAMD',
-
- # generic types, use vendor from host node
- kvm32 => 'default',
- kvm64 => 'default',
- qemu32 => 'default',
- qemu64 => 'default',
- max => 'default',
- },
- aarch64 => {
- 'a64fx' => 'ARM',
- 'cortex-a35' => 'ARM',
- 'cortex-a53' => 'ARM',
- 'cortex-a55' => 'ARM',
- 'cortex-a57' => 'ARM',
- 'cortex-a710' => 'ARM',
- 'cortex-a72' => 'ARM',
- 'cortex-a76' => 'ARM',
- 'neoverse-n1' => 'ARM',
- 'neoverse-n2' => 'ARM',
- 'neoverse-v1' => 'ARM',
- # 32 bit and deprecated models were not added
- max => 'default',
- },
-};
+my $cpu_models_by_arch;
+my $all_cpu_models;
-# The host CPU model only exists if the arch matches
-$cpu_models_by_arch->{$host_arch}->{host} = 'default';
+# helper to make it easier for testing
+# initializes both '$cpu_models_by_arch' and '$all_cpu_models'
+sub initialize_cpu_models {
+ $cpu_models_by_arch = {
+ x86_64 => {
+ # Intel CPUs
+ 486 => 'GenuineIntel',
+ pentium => 'GenuineIntel',
+ pentium2 => 'GenuineIntel',
+ pentium3 => 'GenuineIntel',
+ coreduo => 'GenuineIntel',
+ core2duo => 'GenuineIntel',
+ Conroe => 'GenuineIntel',
+ Penryn => 'GenuineIntel',
+ Nehalem => 'GenuineIntel',
+ 'Nehalem-IBRS' => 'GenuineIntel',
+ Westmere => 'GenuineIntel',
+ 'Westmere-IBRS' => 'GenuineIntel',
+ SandyBridge => 'GenuineIntel',
+ 'SandyBridge-IBRS' => 'GenuineIntel',
+ IvyBridge => 'GenuineIntel',
+ 'IvyBridge-IBRS' => 'GenuineIntel',
+ Haswell => 'GenuineIntel',
+ 'Haswell-IBRS' => 'GenuineIntel',
+ 'Haswell-noTSX' => 'GenuineIntel',
+ 'Haswell-noTSX-IBRS' => 'GenuineIntel',
+ Broadwell => 'GenuineIntel',
+ 'Broadwell-IBRS' => 'GenuineIntel',
+ 'Broadwell-noTSX' => 'GenuineIntel',
+ 'Broadwell-noTSX-IBRS' => 'GenuineIntel',
+ 'Skylake-Client' => 'GenuineIntel',
+ 'Skylake-Client-IBRS' => 'GenuineIntel',
+ 'Skylake-Client-noTSX-IBRS' => 'GenuineIntel',
+ 'Skylake-Client-v4' => 'GenuineIntel',
+ 'Skylake-Server' => 'GenuineIntel',
+ 'Skylake-Server-IBRS' => 'GenuineIntel',
+ 'Skylake-Server-noTSX-IBRS' => 'GenuineIntel',
+ 'Skylake-Server-v4' => 'GenuineIntel',
+ 'Skylake-Server-v5' => 'GenuineIntel',
+ 'Cascadelake-Server' => 'GenuineIntel',
+ 'Cascadelake-Server-v2' => 'GenuineIntel',
+ 'Cascadelake-Server-noTSX' => 'GenuineIntel',
+ 'Cascadelake-Server-v4' => 'GenuineIntel',
+ 'Cascadelake-Server-v5' => 'GenuineIntel',
+ 'Cooperlake' => 'GenuineIntel',
+ 'Cooperlake-v2' => 'GenuineIntel',
+ KnightsMill => 'GenuineIntel',
+ 'Icelake-Client' => 'GenuineIntel', # depreacated, removed with QEMU 7.1
+ 'Icelake-Client-noTSX' => 'GenuineIntel', # depreacated, removed with QEMU 7.1
+ 'Icelake-Server' => 'GenuineIntel',
+ 'Icelake-Server-noTSX' => 'GenuineIntel',
+ 'Icelake-Server-v3' => 'GenuineIntel',
+ 'Icelake-Server-v4' => 'GenuineIntel',
+ 'Icelake-Server-v5' => 'GenuineIntel',
+ 'Icelake-Server-v6' => 'GenuineIntel',
+ 'Icelake-Server-v7' => 'GenuineIntel',
+ 'SapphireRapids' => 'GenuineIntel',
+ 'SapphireRapids-v2' => 'GenuineIntel',
+ 'SapphireRapids-v3' => 'GenuineIntel',
+ 'SapphireRapids-v4' => 'GenuineIntel',
+ 'GraniteRapids' => 'GenuineIntel',
+ 'GraniteRapids-v2' => 'GenuineIntel',
+ 'GraniteRapids-v3' => 'GenuineIntel',
+ 'SierraForest' => 'GenuineIntel',
+ 'SierraForest-v2' => 'GenuineIntel',
+ 'SierraForest-v3' => 'GenuineIntel',
+ 'ClearwaterForest' => 'GenuineIntel',
+
+ # AMD CPUs
+ athlon => 'AuthenticAMD',
+ phenom => 'AuthenticAMD',
+ Opteron_G1 => 'AuthenticAMD',
+ Opteron_G2 => 'AuthenticAMD',
+ Opteron_G3 => 'AuthenticAMD',
+ Opteron_G4 => 'AuthenticAMD',
+ Opteron_G5 => 'AuthenticAMD',
+ EPYC => 'AuthenticAMD',
+ 'EPYC-IBPB' => 'AuthenticAMD',
+ 'EPYC-v3' => 'AuthenticAMD',
+ 'EPYC-v4' => 'AuthenticAMD',
+ 'EPYC-v5' => 'AuthenticAMD',
+ 'EPYC-Rome' => 'AuthenticAMD',
+ 'EPYC-Rome-v2' => 'AuthenticAMD',
+ 'EPYC-Rome-v3' => 'AuthenticAMD',
+ 'EPYC-Rome-v4' => 'AuthenticAMD',
+ 'EPYC-Rome-v5' => 'AuthenticAMD',
+ 'EPYC-Milan' => 'AuthenticAMD',
+ 'EPYC-Milan-v2' => 'AuthenticAMD',
+ 'EPYC-Milan-v3' => 'AuthenticAMD',
+ 'EPYC-Genoa' => 'AuthenticAMD',
+ 'EPYC-Genoa-v2' => 'AuthenticAMD',
+ 'EPYC-Turin' => 'AuthenticAMD',
+
+ # generic types, use vendor from host node
+ kvm32 => 'default',
+ kvm64 => 'default',
+ qemu32 => 'default',
+ qemu64 => 'default',
+ max => 'default',
+ },
+ aarch64 => {
+ 'a64fx' => 'ARM',
+ 'cortex-a35' => 'ARM',
+ 'cortex-a53' => 'ARM',
+ 'cortex-a55' => 'ARM',
+ 'cortex-a57' => 'ARM',
+ 'cortex-a710' => 'ARM',
+ 'cortex-a72' => 'ARM',
+ 'cortex-a76' => 'ARM',
+ 'neoverse-n1' => 'ARM',
+ 'neoverse-n2' => 'ARM',
+ 'neoverse-v1' => 'ARM',
+ # 32 bit and deprecated models were not added
+ max => 'default',
+ },
+ };
-my $all_cpu_models;
-for my $arch (keys $cpu_models_by_arch->%*) {
- for my $model (keys $cpu_models_by_arch->{$arch}->%*) {
- $all_cpu_models->{$model} = $cpu_models_by_arch->{$arch}->{$model};
+ my $host_arch = get_host_arch();
+ # The host CPU model only exists if the arch matches
+ $cpu_models_by_arch->{$host_arch}->{host} = 'default';
+
+ for my $arch (keys $cpu_models_by_arch->%*) {
+ for my $model (keys $cpu_models_by_arch->{$arch}->%*) {
+ $all_cpu_models->{$model} = $cpu_models_by_arch->{$arch}->{$model};
+ }
}
}
+# returns the cpu models for the given architecture, or if $arch is not given, a
+# map from available architectures to models
+sub get_cpu_models_by_arch {
+ my ($arch) = @_;
+ initialize_cpu_models() if !defined($cpu_models_by_arch);
+ return $cpu_models_by_arch->{$arch} if defined($arch);
+ return $cpu_models_by_arch;
+}
+
+# returns a map of all availble cpu models regardless of architecture
+sub get_all_cpu_models {
+ initialize_cpu_models() if !defined($all_cpu_models);
+ return $all_cpu_models;
+}
+
my $supported_cpu_flags_by_arch = {
x86_64 => [
{
@@ -325,7 +345,7 @@ my $cpu_fmt = {
"CPU model and vendor to report to the guest. Must be a QEMU/KVM supported model."
. " Only valid for custom CPU model definitions, default models will always report themselves to the guest OS.",
type => 'string',
- enum => [sort { lc("$a") cmp lc("$b") } keys $all_cpu_models->%*],
+ enum => [sort { lc("$a") cmp lc("$b") } keys get_all_cpu_models()->%*],
default => 'kvm64',
optional => 1,
},
@@ -583,7 +603,7 @@ sub get_cpu_models {
my ($include_custom, $arch) = @_;
$arch = get_host_arch() if !defined($arch);
- my $cpu_vendor_list = $cpu_models_by_arch->{$arch};
+ my $cpu_vendor_list = get_cpu_models_by_arch($arch);
my $models = [];
@@ -614,7 +634,7 @@ sub get_cpu_models {
for my $custom_model (keys %{ $conf->{ids} }) {
my $reported_model = $conf->{ids}->{$custom_model}->{'reported-model'};
$reported_model //= $cpu_fmt->{'reported-model'}->{default};
- my $vendor = $all_cpu_models->{$reported_model};
+ my $vendor = get_all_cpu_models()->{$reported_model};
push @$models,
{
name => "custom-$custom_model",
@@ -870,7 +890,7 @@ sub get_cpu_options {
}
die "CPU model '$cputype' does not exist for configured vCPU architecture '$arch'\n"
- if !defined($cpu_models_by_arch->{$arch}->{$cputype});
+ if !defined(get_cpu_models_by_arch($arch)->{$cputype});
my $pve_flags = get_pve_cpu_flags($conf, $kvm, $cputype, $arch, $machine_version);
@@ -910,7 +930,7 @@ sub get_cpu_options {
if ($arch eq 'x86_64') {
# $cputype is the "reported-model" for custom types, so we can just look up
# the vendor in the default list
- my $cpu_vendor = $cpu_models_by_arch->{$arch}->{$cputype} or die "internal error";
+ my $cpu_vendor = get_cpu_models_by_arch($arch)->{$cputype} or die "internal error";
$pve_forced_flags->{'vendor'} = { value => $cpu_vendor } if $cpu_vendor ne 'default';
}
diff --git a/src/test/run_config2command_tests.pl b/src/test/run_config2command_tests.pl
index c20f2377..7ca2014e 100755
--- a/src/test/run_config2command_tests.pl
+++ b/src/test/run_config2command_tests.pl
@@ -235,6 +235,8 @@ sub parse_test($config_fn) {
$testname = "'$testname' - $desc";
}
$current_test->{testname} = $testname;
+
+ PVE::QemuServer::CPUConfig::initialize_cpu_models();
}
sub get_test_qemu_version {
--
2.47.3
next prev parent reply other threads:[~2026-02-05 14:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-05 14:17 [PATCH qemu-server v3 0/3] improve multiarch build support Dominik Csapak
2026-02-05 14:17 ` [PATCH qemu-server v3 1/3] tests: improve multiarch build support by introducing local get_host_arch helper Dominik Csapak
2026-02-05 14:17 ` Dominik Csapak [this message]
2026-02-05 14:17 ` [PATCH qemu-server v3 3/3] tests: cfg2cmd: add some architecture tests Dominik Csapak
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