Re: [pve-devel] [PATCH-SERIES v6 qemu-server/manager] add and set x86-64-v2-AES as default model for new vms

[Thomas Lamprecht <t.lamprecht@proxmox.com>]

Am 08/06/2023 um 11:51 schrieb Alexandre Derumier:
> Here the new builtin models:
> 
> 
> x86-64-v1 : not implemented, 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

Could confirm this.

> min amd : Opteron_G3

Could not confirm this, QEMU mentions that for this model it means AMD Opteron 23xx
(Gen 3 Class Opteron) CPUs, but I couldn't find any mentioning that those had already
AES support.

The first model that mentioned support for this were the Bulldozer based ones, i.e.,
Opteron 6200-series "Interlagos" and consorts, which QEMU lists under Opteron_G4.

Did I overlook something or is here the minimum really G4? Not that it's a big Problem,
but we need to know exactly what models can work with the new default for support
reasons.

> 
> 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