From: Dominik Csapak <d.csapak@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [PATCH qemu-server v2 1/2] tests: improve multiarch build support
Date: Wed, 4 Feb 2026 11:01:01 +0100 [thread overview]
Message-ID: <20260204100425.1303295-1-d.csapak@proxmox.com> (raw)
instead of simply saving 'host_arch' in the global package namespace,
use the PVE::Tools::get_host_arch helper, which caches the result
anyway.
For easier testing:
* introduce our own helper for getting the host arch, which uses
the PVE::Tools one. So we only have to mock the Tools one to get
correct behavior in the tests. Use this everywhere here where we need
it.
* move the cpu_models_by_arch initialization into a sub that can be
called by the tests to re-initialize.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
changes from v1:
* add helpers to be more easily used and mocked by the tests instead
of modifying the module level variable
src/PVE/QemuServer.pm | 5 +-
src/PVE/QemuServer/CPUConfig.pm | 258 ++++++++++++++-------------
src/PVE/QemuServer/Helpers.pm | 8 +-
src/test/run_config2command_tests.pl | 8 +-
4 files changed, 146 insertions(+), 133 deletions(-)
diff --git a/src/PVE/QemuServer.pm b/src/PVE/QemuServer.pm
index 5d2dbe03..8bf23945 100644
--- a/src/PVE/QemuServer.pm
+++ b/src/PVE/QemuServer.pm
@@ -46,8 +46,7 @@ use PVE::SafeSyslog;
use PVE::Storage;
use PVE::SysFSTools;
use PVE::Systemd;
-use PVE::Tools
- qw(run_command file_read_firstline file_get_contents dir_glob_foreach get_host_arch $IPV6RE);
+use PVE::Tools qw(run_command file_read_firstline file_get_contents dir_glob_foreach $IPV6RE);
use PVE::QMPClient;
use PVE::QemuConfig;
@@ -58,7 +57,7 @@ use PVE::QemuServer::Blockdev;
use PVE::QemuServer::BlockJob;
use PVE::QemuServer::Cfg2Cmd;
use PVE::QemuServer::Helpers
- qw(config_aware_timeout get_iscsi_initiator_name min_version kvm_user_version windows_version);
+ qw(config_aware_timeout get_iscsi_initiator_name get_host_arch min_version kvm_user_version windows_version);
use PVE::QemuServer::Cloudinit;
use PVE::QemuServer::CGroup;
use PVE::QemuServer::CPUConfig qw(
diff --git a/src/PVE/QemuServer/CPUConfig.pm b/src/PVE/QemuServer/CPUConfig.pm
index 32ec4954..7d5559b0 100644
--- a/src/PVE/QemuServer/CPUConfig.pm
+++ b/src/PVE/QemuServer/CPUConfig.pm
@@ -11,7 +11,7 @@ use PVE::ProcFSTools;
use PVE::RESTEnvironment qw(log_warn);
use PVE::Tools qw(run_command);
-use PVE::QemuServer::Helpers qw(min_version);
+use PVE::QemuServer::Helpers qw(min_version get_host_arch);
use base qw(PVE::SectionConfig Exporter);
@@ -25,8 +25,6 @@ our @EXPORT_OK = qw(
get_cvm_type
);
-my $host_arch = PVE::Tools::get_host_arch();
-
my $arch_desc = {
description => "Virtual processor architecture. Defaults to the host architecture.",
type => 'string',
@@ -100,130 +98,138 @@ 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
+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};
+ }
}
}
+initialize_cpu_models();
+
my $supported_cpu_flags_by_arch = {
x86_64 => [
{
@@ -294,7 +300,7 @@ my $supported_cpu_flags_by_arch = {
sub get_supported_cpu_flags {
my ($arch) = @_;
- $arch = $host_arch if !defined($arch);
+ $arch = get_host_arch() if !defined($arch);
return $supported_cpu_flags_by_arch->{$arch};
}
@@ -582,7 +588,7 @@ sub add_cpu_json_properties {
sub get_cpu_models {
my ($include_custom, $arch) = @_;
- $arch = $host_arch if !defined($arch);
+ $arch = get_host_arch() if !defined($arch);
my $cpu_vendor_list = $cpu_models_by_arch->{$arch};
my $models = [];
@@ -1077,13 +1083,13 @@ sub get_default_cpu_type {
sub is_native_arch($) {
my ($arch) = @_;
- return $host_arch eq $arch;
+ return get_host_arch() eq $arch;
}
sub get_cpu_bitness {
my ($cpu_prop_str, $arch) = @_;
- $arch //= $host_arch;
+ $arch //= get_host_arch();
my $cputype = get_default_cpu_type($arch, 0);
diff --git a/src/PVE/QemuServer/Helpers.pm b/src/PVE/QemuServer/Helpers.pm
index 35c00754..e898440c 100644
--- a/src/PVE/QemuServer/Helpers.pm
+++ b/src/PVE/QemuServer/Helpers.pm
@@ -10,7 +10,7 @@ use JSON;
use PVE::Cluster;
use PVE::INotify;
use PVE::ProcFSTools;
-use PVE::Tools qw(get_host_arch);
+use PVE::Tools;
use base 'Exporter';
our @EXPORT_OK = qw(
@@ -20,6 +20,7 @@ our @EXPORT_OK = qw(
kvm_user_version
parse_number_sets
windows_version
+ get_host_arch
);
my $nodename = PVE::INotify::nodename();
@@ -29,6 +30,11 @@ my $arch_to_qemu_binary = {
x86_64 => '/usr/bin/qemu-system-x86_64',
};
+# wrapper around the Tools helper, having it here makes it easier for testing
+sub get_host_arch {
+ return PVE::Tools::get_host_arch();
+}
+
sub get_command_for_arch($) {
my ($arch) = @_;
return '/usr/bin/kvm' if get_host_arch() eq $arch; # i.e. native arch
diff --git a/src/test/run_config2command_tests.pl b/src/test/run_config2command_tests.pl
index 4c872d1c..7ca2014e 100755
--- a/src/test/run_config2command_tests.pl
+++ b/src/test/run_config2command_tests.pl
@@ -235,6 +235,8 @@ sub parse_test($config_fn) {
$testname = "'$testname' - $desc";
}
$current_test->{testname} = $testname;
+
+ PVE::QemuServer::CPUConfig::initialize_cpu_models();
}
sub get_test_qemu_version {
@@ -253,9 +255,6 @@ $qemu_server_module->mock(
kernel_has_vhost_net => sub {
return 1; # TODO: make this per-test configurable?
},
- get_host_arch => sub() {
- return $current_test->{host_arch} // 'x86_64';
- },
get_iscsi_initiator_name => sub {
return 'iqn.1993-08.org.debian:01:aabbccddeeff';
},
@@ -388,6 +387,9 @@ $pve_common_tools->mock(
},
);
},
+ get_host_arch => sub() {
+ return $current_test->{host_arch} // 'x86_64';
+ },
);
my $pve_cpuconfig;
--
2.47.3
next reply other threads:[~2026-02-04 10:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-04 10:01 Dominik Csapak [this message]
2026-02-04 10:01 ` [PATCH qemu-server v2 2/2] tests: cfg2cmd: add some architecture tests Dominik Csapak
2026-02-04 15:46 ` [PATCH qemu-server v2 1/2] tests: improve multiarch build support Thomas Lamprecht
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