Re: [PATCH v4 00/16] x86: support AVX10

[Jan Beulich <jbeulich@xxxxxxxx>]

On 09.04.2026 16:59, Jan Beulich wrote:
> AVX10.1 is just a re-branding of certain AVX512 (sub)features, i.e.
> adds no new instructions. Therefore it's mostly relaxation that needs
> doing. Luckily the 256-bit-only case and an unnecessary restriction on
> the mask register insns was taken out again, simplifying the actual
> emulator adjustments quite a bit.
> 
> AVX10.2 is adding quite a few new insns, support for which is roughly
> added chapter-wise as the spec has them (perhaps not in the order of
> the chapters there).
> 
> While it probably could be re-based ahead, the series in this form
> depends on the previously submitted "[PATCH v5 0/3] x86/CPUID: leaf
> pruning" and parts of whatever is left of "[PATCH v9 00/10] x86emul:
> misc additions".
> 
> I've tried to be very careful in rebasing ahead of other emulator
> patches I've been carrying, but almost all testing I've done is with
> all of those collectively in place.

As you may have noticed, I screwed up the numbering. Hence ...

> 01: x86/CPUID: enable AVX10 leaf

... this is 00.9, and everything else is off-by-1 (and there's no 16/16).
I'm sorry for that.

Jan

> 02: x86emul: support SIMD MOVRS
> 03: x86emul: support AVX10.2 forms of SM4 insns
> 04: x86emul: support AVX10.1
> 05: x86emul/test: use simd_check_avx512*() in main()
> 06: x86emul/test: drop cpu_has_avx512vl
> 07: x86emul: AVX10.1 testing
> 08: x86emul/test: engage AVX512VL via command line option
> 09: x86/CPUID: enable AVX10.2 sub-leaf
> 10: x86emul: support AVX10.2 scalar compare insns
> 11: x86emul: support AVX10.2 partial copy insns
> 12: x86emul: support AVX10.2 media insns
> 13: x86emul: support AVX10.2 minmax insns
> 14: x86emul: support AVX10.2 BFloat16 insns
> 15: x86emul: support AVX10.2 saturating convert insns
> 16: x86emul: support other AVX10.2 convert insns
> 
> Jan