mirror of
https://github.com/vdsm/virtual-dsm.git
synced 2025-02-24 21:40:01 +08:00
62 lines
1.7 KiB
Bash
62 lines
1.7 KiB
Bash
#!/usr/bin/env bash
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set -Eeuo pipefail
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# Docker environment variables
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: ${HOST_CPU:=''}
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: ${CPU_MODEL:='host'}
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: ${CPU_FEATURES:='+ssse3,+sse4.1,+sse4.2'}
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KVM_ERR=""
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KVM_OPTS=""
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if [[ "$ARCH" == "amd64" && "$KVM" != [Nn]* ]]; then
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if [ -e /dev/kvm ] && sh -c 'echo -n > /dev/kvm' &> /dev/null; then
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if ! grep -q -e vmx -e svm /proc/cpuinfo; then
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KVM_ERR="(vmx/svm disabled)"
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fi
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else
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[ -e /dev/kvm ] && KVM_ERR="(no write access)" || KVM_ERR="(device file missing)"
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fi
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if [ -n "$KVM_ERR" ]; then
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error "KVM acceleration not detected $KVM_ERR, this will cause a major loss of performance."
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error "See the FAQ on how to enable it, or skip this error by setting KVM=N (not recommended)."
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[[ "$DEBUG" != [Yy1]* ]] && exit 88
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[[ "$CPU_MODEL" == "host"* ]] && CPU_MODEL="max,$CPU_FEATURES"
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else
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KVM_OPTS=",accel=kvm -enable-kvm"
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fi
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if [ -n "$KVM_OPTS" ]; then
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if ! grep -qE '^flags.* (sse4_2)' /proc/cpuinfo; then
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error "Your host CPU does not have the SSE4.2 instruction set that Virtual DSM requires to boot."
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error "Disable KVM by setting KVM=N to emulate a compatible CPU, at the cost of performance."
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[[ "$DEBUG" != [Yy1]* ]] && exit 89
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fi
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fi
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else
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[[ "$CPU_MODEL" == "host"* ]] && CPU_MODEL="max,$CPU_FEATURES"
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fi
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if [ -z "$HOST_CPU" ]; then
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HOST_CPU=$(lscpu | grep 'Model name' | cut -f 2 -d ":" | awk '{$1=$1}1' | sed 's# @.*##g' | sed s/"(R)"//g | sed 's/[^[:alnum:] ]\+/ /g' | sed 's/ */ /g')
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fi
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if [ -n "$HOST_CPU" ]; then
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HOST_CPU="${HOST_CPU%%,*},,"
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else
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HOST_CPU="QEMU, Virtual CPU,"
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if [ "$ARCH" == "amd64" ]; then
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HOST_CPU="$HOST_CPU X86_64"
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else
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HOST_CPU="$HOST_CPU $ARCH"
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fi
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fi
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return 0
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