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qemux86-64: build for x86-64-v3 (2013 Haswell and later) rather than Core 2 from 2006

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This allows us to
- test those more recent instruction sets (AVX, AVX2, BMI1, BMI2, F16C, FMA, LZCNT, MOVBE, XSAVE)
- benefit from improved performance across the stack both in kvm-driven system emulation and when running
on real silicon.
For example, glibc:
https://www.phoronix.com/news/Glibc-strcasecmp-AVX2-EVEX

v4 level is adding AVX-512, which is far less established, particularly Intel has famously backtracked
from supporting it in Alder Lake/Raport Lake client CPUs and AMD has only implemented it in very recent Zen4 products:
https://www.phoronix.com/news/GCC-11-x86-64-Feature-Levels

(From OE-Core rev: 6f2af1e5d1537b4d31e14946292bf58f0fd76fc9)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Alexander Kanavin
2022-12-30 19:38:41 +01:00
committed by Richard Purdie
parent d32dc08a77
commit ba0326071e
2 changed files with 4 additions and 4 deletions
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4
meta/conf/machine/include/x86/qemuboot-x86.inc
View File

@@ -4,8 +4,8 @@ QB_SMP = "-smp 4"
QB_CPU:x86 = "-cpu IvyBridge -machine q35,i8042=off"
QB_CPU_KVM:x86 = "-cpu IvyBridge -machine q35,i8042=off"
QB_CPU:x86-64 = "-cpu IvyBridge -machine q35,i8042=off"
QB_CPU_KVM:x86-64 = "-cpu IvyBridge -machine q35,i8042=off"
QB_CPU:x86-64 = "-cpu Skylake-Client -machine q35,i8042=off"
QB_CPU_KVM:x86-64 = "-cpu Skylake-Client -machine q35,i8042=off"
QB_AUDIO_DRV = "alsa"
QB_AUDIO_OPT = "-device AC97"

4
meta/conf/machine/qemux86-64.conf
View File

@@ -9,8 +9,8 @@ PREFERRED_PROVIDER_virtual/libgles2 ?= "mesa"
PREFERRED_PROVIDER_virtual/libgles3 ?= "mesa"
require conf/machine/include/qemu.inc
DEFAULTTUNE ?= "core2-64"
require conf/machine/include/x86/tune-corei7.inc
DEFAULTTUNE ?= "x86-64-v3"
require conf/machine/include/x86/tune-x86-64-v3.inc
require conf/machine/include/x86/qemuboot-x86.inc
UBOOT_MACHINE ?= "qemu-x86_64_defconfig"