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[PATCH 00/30] x86: permit guests to use APX
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 11 Nov 2026 15:19:41 +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 14:20:02 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
This initial posting is long overdue, but the series depends on various
other stalled (lack of review) work:
- x86: support AVX10
- vVMX: VMX insn handling
- (test harness) x86emul: lift macro machinery from XTF to aid EFLAGS handling
01: x86/CPUID: introduce APX_F
02: x86/CPUID: enable APX sub-leaf
03: x86/xstate: enable APX_F
04: x86emul: add eGPR parameter to decode_gpr()
05: x86emul: replace earlier relaxation of decode_gpr()
06: VMX: support APX
07: x86emul: latch XCR0 early during decode
08: x86emul: support REX2-prefixed insns
09: x86emul: APX_F REX2 testing
10: x86emul: support JMPABS
11: x86emul: switch to EVEX.R{3,4} nomenclature
12: x86emul: switch to EVEX.B{3,4} nomenclature
13: x86emul: switch to EVEX.X3 nomenclature
14: x86emul: support basic APX EVEX-encoded ALU insns
15: x86emul: support APX EVEX-encoded shift/rotate insns
16: x86emul: support remaining basic APX EVEX-Map4 insns
17: x86emul: support APX SCC insns
18: x86emul: support APX+ADX insns
19: x86emul: extend copy_VEX() for APX use
20: x86emul: support APX+AVX512 insns
21: x86emul: support APX+BMI1 insns
22: x86emul: support APX+BMI2 insns
23: x86emul: support APX+CMPccXADD insns
24: x86emul: support APX+{LZ,POP}CNT insns
25: x86emul: support APX+MOVBE insn
26: x86emul: support APX+MOVDIR/ENQCMD insns
27: x86emul: support APX+MOVRS insn
28: x86emul: support APX MSR access insns
29: x86: permit guests to use APX
30: x86emul: use latched XCR0 in x86emul_get_fpu()
Jan
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