From 2162b9a4722930afd787b668dbf923180cc7cdde Mon Sep 17 00:00:00 2001 From: Marco Vedovati Date: Fri, 31 May 2019 16:34:22 +0200 Subject: [PATCH] QEMU: only enable AVX2 for x86_64 AVX2 are x86 specific extensions that should only be enabled for x86_64 targets. Fixes: #558 Signed-off-by: Marco Vedovati --- scripts/configure-hypervisor.sh | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/scripts/configure-hypervisor.sh b/scripts/configure-hypervisor.sh index 0870d41a03..3f29f7fe9a 100755 --- a/scripts/configure-hypervisor.sh +++ b/scripts/configure-hypervisor.sh @@ -366,8 +366,13 @@ generate_qemu_options() { qemu_options+=(functionality:--enable-cap-ng) if [[ "${qemu_version_major}" -ge 4 || ( "${qemu_version_major}" -eq 3 && "${qemu_version_minor}" -ge 1 ) ]]; then - # AVX2 is enabled by default, make sure it's on. - qemu_options+=(speed:--enable-avx2) + # AVX2 is enabled by default by x86_64, make sure it's enabled only + # for that architecture + if [ "$arch" == x86_64 ]; then + qemu_options+=(speed:--enable-avx2) + else + qemu_options+=(speed:--disable-avx2) + fi # Enable libc malloc_trim() for memory optimization. qemu_options+=(speed:--enable-malloc-trim) fi