https://gitlab.com/x86-psABIs/x86-64-ABI/ https://lists.gnu.org/archive/html/qemu-devel/2021-06/msg01592.html " In 2020, AMD, Intel, Red Hat, and SUSE worked together to define three microarchitecture levels on top of the historical x86-64 baseline:
* x86-64: original x86_64 baseline instruction set * x86-64-v2: vector instructions up to Streaming SIMD Extensions 4.2 (SSE4.2) and Supplemental Streaming SIMD Extensions 3 (SSSE3), the POPCNT instruction, and CMPXCHG16B * x86-64-v3: vector instructions up to AVX2, MOVBE, and additional bit-manipulation instructions. * x86-64-v4: vector instructions from some of the AVX-512 variants. " This patch add new builtin model derivated from qemu64 model, to be compatible between intel/amd. mandatory flags from qemu-doc generator: https://gitlab.com/qemu/qemu/-/blob/master/scripts/cpu-x86-uarch-abi.py levels = [ [ # x86-64 baseline "cmov", "cx8", "fpu", "fxsr", "mmx", "syscall", "sse", "sse2", ], [ # x86-64-v2 "cx16", "lahf-lm", "popcnt", "pni", "sse4.1", "sse4.2", "ssse3", ], [ # x86-64-v3 "avx", "avx2", "bmi1", "bmi2", "f16c", "fma", "abm", "movbe", "xsave" #missing from qemu doc currently ], [ # x86-64-v4 "avx512f", "avx512bw", "avx512cd", "avx512dq", "avx512vl", ], ] x86-64-v1 : I'm skipping it, as it's basicaly qemu64|kvm64 -vme,-cx16 for compat Opteron_G1 from 2004 so will use it as qemu64|kvm64 is higher are not working on opteron_g1 anyway x86-64-v2 : Derived from qemu, +popcnt;+pni;+sse4.1;+sse4.2;+ssse3 min intel: Nehalem min amd : Opteron_G3 x86-64-v2-AES : Derived from qemu, +aes;+popcnt;+pni;+sse4.1;+sse4.2;+ssse3 min intel: Westmere min amd : Opteron_G3 x86-64-v3 : Derived from qemu64 +aes;+popcnt;+pni;+sse4.1;+sse4.2;+ssse3;+avx;+avx2;+bmi1;+bmi2;+f16c;+fma;+abm;+movbe+xsave min intel: Haswell min amd : EPYC_v1 x86-64-v4 : Derived from qemu64 +aes;+popcnt;+pni;+sse4.1;+sse4.2;+ssse3;+avx;+avx2;+bmi1;+bmi2;+f16c;+fma;+abm;+movbe;+xsave;+avx512f;+avx512bw;+avx512cd;+avx512dq;+avx512vl min intel: Skylake min amd : EPYC_v4 Signed-off-by: Alexandre Derumier <aderum...@odiso.com> --- PVE/QemuServer/CPUConfig.pm | 48 +++++++++++++++++++++++++++++++++---- 1 file changed, 43 insertions(+), 5 deletions(-) diff --git a/PVE/QemuServer/CPUConfig.pm b/PVE/QemuServer/CPUConfig.pm index fb0861b..6ec0356 100644 --- a/PVE/QemuServer/CPUConfig.pm +++ b/PVE/QemuServer/CPUConfig.pm @@ -31,6 +31,26 @@ sub load_custom_model_conf { return cfs_read_file($default_filename); } +#builtin models : reported-model is mandatory +my $builtin_models = { + 'x86-64-v2' => { + 'reported-model' => 'qemu64', + flags => "+popcnt;+pni;+sse4.1;+sse4.2;+ssse3", + }, + 'x86-64-v2-AES' => { + 'reported-model' => 'qemu64', + flags => "+aes;+popcnt;+pni;+sse4.1;+sse4.2;+ssse3", + }, + 'x86-64-v3' => { + 'reported-model' => 'qemu64', + flags => "+aes;+popcnt;+pni;+sse4.1;+sse4.2;+ssse3;+avx;+avx2;+bmi1;+bmi2;+f16c;+fma;+abm;+movbe;+xsave", + }, + 'x86-64-v4' => { + 'reported-model' => 'qemu64', + flags => "+aes;+popcnt;+pni;+sse4.1;+sse4.2;+ssse3;+avx;+avx2;+bmi1;+bmi2;+f16c;+fma;+abm;+movbe;+xsave;+avx512f;+avx512bw;+avx512cd;+avx512dq;+avx512vl", + }, +}; + my $depreacated_cpu_map = { # there never was such a client CPU, so map it to the server one for backward compat 'Icelake-Client' => 'Icelake-Server', @@ -212,7 +232,7 @@ sub validate_vm_cpu_conf { get_custom_model($cputype); } else { die "Built-in cputype '$cputype' is not defined (missing 'custom-' prefix?)\n" - if !defined($cpu_vendor_list->{$cputype}); + if !defined($cpu_vendor_list->{$cputype}) && !defined($builtin_models->{$cputype}); } # in a VM-specific config, certain properties are limited/forbidden @@ -302,6 +322,16 @@ sub get_cpu_models { }; } + for my $model (keys %{$builtin_models}) { + my $reported_model = $builtin_models->{$model}->{'reported-model'}; + my $vendor = $cpu_vendor_list->{$reported_model}; + push @$models, { + name => $model, + custom => 0, + vendor => $vendor, + }; + } + return $models if !$include_custom; my $conf = load_custom_model_conf(); @@ -359,7 +389,9 @@ sub print_cpu_device { or die "Cannot parse cpu description: $cputype\n"; $cpu = $cpuconf->{cputype}; - if (is_custom_model($cpu)) { + if (my $model = $builtin_models->{$cpu}) { + $cpu = $model->{'reported-model'}; + } elsif (is_custom_model($cputype)) { my $custom_cpu = get_custom_model($cpu); $cpu = $custom_cpu->{'reported-model'} // $cpu_fmt->{'reported-model'}->{default}; @@ -468,14 +500,17 @@ sub get_cpu_options { my $cpu = {}; my $custom_cpu; + my $builtin_cpu; my $hv_vendor_id; if (my $cpu_prop_str = $conf->{cpu}) { $cpu = PVE::JSONSchema::parse_property_string('pve-vm-cpu-conf', $cpu_prop_str) or die "Cannot parse cpu description: $cpu_prop_str\n"; $cputype = $cpu->{cputype}; - - if (is_custom_model($cputype)) { + if (my $model = $builtin_models->{$cputype}) { + $cputype = $model->{'reported-model'}; + $builtin_cpu->{flags} = $model->{'flags'}; + } elsif (is_custom_model($cputype)) { $custom_cpu = get_custom_model($cputype); $cputype = $custom_cpu->{'reported-model'} // $cpu_fmt->{'reported-model'}->{default}; @@ -504,6 +539,9 @@ sub get_cpu_options { ) : undef; + my $builtin_cputype_flags = parse_cpuflag_list( + $cpu_flag_any_re, "set by builtin CPU model", $builtin_cpu->{flags}); + my $custom_cputype_flags = parse_cpuflag_list( $cpu_flag_any_re, "set by custom CPU model", $custom_cpu->{flags}); @@ -534,7 +572,7 @@ sub get_cpu_options { # will be resolved in parameter order $cpu_str .= resolve_cpu_flags( - $pve_flags, $hv_flags, $custom_cputype_flags, $vm_flags, $pve_forced_flags); + $pve_flags, $hv_flags, $builtin_cputype_flags, $custom_cputype_flags, $vm_flags, $pve_forced_flags); my $phys_bits = ''; foreach my $conf ($custom_cpu, $cpu) { -- 2.30.2 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel