On May 17, 2023 9:02 am, Alexandre Derumier wrote: > Hi, > > we used kvm64 as default cpumodel since the begin of proxmox. (basically, > it's like a pentium4 cpu flags). > > New distros like rhel9 are compiled to use more modern cpu flags. > (and windows already use new flags since year, and we already add some extra > cpu flags) > > " > 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. > > " > > > (x86-64 is kvm64/qemu64 cpu model). > > This patch series add new models (patch was found on qemu mailing, but never > appplied). > > "x86-64-abiX" : (as vX are reserved in qemu for revision versioning) > > https://lore.kernel.org/all/20210526144038.278899-1-berra...@redhat.com/T/
FWIW, there was a v3: https://lists.gnu.org/archive/html/qemu-devel/2021-06/msg01591.html (20210607135843.196595-1-berra...@redhat.com) that has some more discussion/information (only the doc table + script to generate it have been applied it seems). _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
