From 83bd32a7a593330709550a802b9c10016699b830 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 2 May 2024 13:58:46 +0300 Subject: x86/insn: Add VEX versions of VPDPBUSD, VPDPBUSDS, VPDPWSSD and VPDPWSSDS [ Upstream commit b8000264348979b60dbe479255570a40e1b3a097 ] The x86 instruction decoder is used not only for decoding kernel instructions. It is also used by perf uprobes (user space probes) and by perf tools Intel Processor Trace decoding. Consequently, it needs to support instructions executed by user space also. Intel Architecture Instruction Set Extensions and Future Features manual number 319433-044 of May 2021, documented VEX versions of instructions VPDPBUSD, VPDPBUSDS, VPDPWSSD and VPDPWSSDS, but the opcode map has them listed as EVEX only. Remove EVEX-only (ev) annotation from instructions VPDPBUSD, VPDPBUSDS, VPDPWSSD and VPDPWSSDS, which allows them to be decoded with either a VEX or EVEX prefix. Fixes: 0153d98f2dd6 ("x86/insn: Add misc instructions to x86 instruction decoder") Signed-off-by: Adrian Hunter Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/r/20240502105853.5338-4-adrian.hunter@intel.com Signed-off-by: Sasha Levin --- arch/x86/lib/x86-opcode-map.txt | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt index 84ffe9e528e7..da9347552be6 100644 --- a/arch/x86/lib/x86-opcode-map.txt +++ b/arch/x86/lib/x86-opcode-map.txt @@ -698,10 +698,10 @@ AVXcode: 2 4d: vrcp14ss/d Vsd,Hpd,Wsd (66),(ev) 4e: vrsqrt14ps/d Vpd,Wpd (66),(ev) 4f: vrsqrt14ss/d Vsd,Hsd,Wsd (66),(ev) -50: vpdpbusd Vx,Hx,Wx (66),(ev) -51: vpdpbusds Vx,Hx,Wx (66),(ev) -52: vdpbf16ps Vx,Hx,Wx (F3),(ev) | vpdpwssd Vx,Hx,Wx (66),(ev) | vp4dpwssd Vdqq,Hdqq,Wdq (F2),(ev) -53: vpdpwssds Vx,Hx,Wx (66),(ev) | vp4dpwssds Vdqq,Hdqq,Wdq (F2),(ev) +50: vpdpbusd Vx,Hx,Wx (66) +51: vpdpbusds Vx,Hx,Wx (66) +52: vdpbf16ps Vx,Hx,Wx (F3),(ev) | vpdpwssd Vx,Hx,Wx (66) | vp4dpwssd Vdqq,Hdqq,Wdq (F2),(ev) +53: vpdpwssds Vx,Hx,Wx (66) | vp4dpwssds Vdqq,Hdqq,Wdq (F2),(ev) 54: vpopcntb/w Vx,Wx (66),(ev) 55: vpopcntd/q Vx,Wx (66),(ev) 58: vpbroadcastd Vx,Wx (66),(v) -- cgit v1.2.3