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[PATCH v4 00/28] x86 xstate area / AMX+XFD / ACE
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 11 Nov 2026 16:06:05 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Teddy Astie <teddy.astie@xxxxxxxxxx>, Roger Pau Monné <roger@xxxxxxxxxxxxxx>
- Delivery-date: Wed, 11 Nov 2026 15:06:15 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
While this re-posting is long overdue, this series now sitting on top
of the APX one doing so didn't make sense without first posting that
dependency. Still, this is already lagging behind again - ACEv2 support
is missing for now.
01: x86/xstate: re-size save area when CPUID policy changes
02: x86/xstate: drop xstate_offsets[] and xstate_sizes[]
03: x86/xstate: replace xsave_cntxt_size and drop XCNTXT_MASK
04: x86/xstate: avoid accounting for unsupported components
05: x86: use xvmalloc() for extended context buffer allocations
06: x86/CPUID: enable AMX leaves
07: x86: XFD enabling
08: x86emul: introduce X86EMUL_FPU_{tilecfg,tile}
09: x86emul: support TILERELEASE
10: x86emul: support {LD,ST}TILECFG
11: x86emul: support TILEZERO
12: x86/HVM: respect AMX tile dimensions for emulation caching
13: x86emul: support TILELOADD{,T1} and TILESTORE
14: x86emul: support tile multiplication insns
15: x86emul: test AMX insns
16: x86emul: support APX forms of {LD,ST}TILECFG
17: x86emul: support APX forms of TILE{LOADD{,T1},STORED}
18: x86: permit guests to use AMX and XFD
19: x86/CPUID: TMUL subleaf 1
20: x86emul: support AMX-MOVRS(-only) insns
21: x86emul: support AMX-FP8 insns
22: x86emul: support AMX-AVX512 insns with GPR operand
23: x86emul: support AMX-AVX512 insns with immediate operand
24: x86/CPUID: enable ACE
25: x86emul: enable tile management insns for ACE
26: x86emul: enable tile data movement insns for ACE
27: x86emul: enable block scale register insns for ACE
28: x86emul: enable outer product insns for ACE
Jan
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