From ba0326071edc4aa988ad5bfaa4215e24e31fc75b Mon Sep 17 00:00:00 2001 From: Alexander Kanavin Date: Fri, 30 Dec 2022 19:38:41 +0100 Subject: qemux86-64: build for x86-64-v3 (2013 Haswell and later) rather than Core 2 from 2006 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 Signed-off-by: Richard Purdie --- meta/conf/machine/qemux86-64.conf | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'meta/conf/machine/qemux86-64.conf') diff --git a/meta/conf/machine/qemux86-64.conf b/meta/conf/machine/qemux86-64.conf index 8640867911..d355375f13 100644 --- a/meta/conf/machine/qemux86-64.conf +++ b/meta/conf/machine/qemux86-64.conf @@ -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" -- cgit v1.2.3-54-g00ecf