File size: 3,563 Bytes
021894c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | #!/usr/bin/env bash
set -Eeuo pipefail
# Docker environment variables
: "${HV="Y"}"
: "${VMX:="N"}"
: "${CPU_FLAGS:=""}"
: "${CPU_MODEL:=""}"
[[ "$DEBUG" == [Yy1]* ]] && echo "Configuring KVM..."
vendor=$(lscpu | awk '/Vendor ID/{print $3}')
flags=$(sed -ne '/^flags/s/^.*: //p' /proc/cpuinfo)
if [[ "$KVM" != [Nn]* ]]; then
CPU_FEATURES="kvm=on,l3-cache=on,+hypervisor"
KVM_OPTS=",accel=kvm -enable-kvm -global kvm-pit.lost_tick_policy=discard"
if [ -z "$CPU_MODEL" ]; then
CPU_MODEL="host"
CPU_FEATURES+=",migratable=no"
fi
if [[ "$VMX" == [Nn]* && "${BOOT_MODE,,}" == "windows"* ]]; then
# Prevents a crash caused by a certain Windows update
CPU_FEATURES+=",-vmx"
fi
if [[ "$vendor" == "AuthenticAMD" ]]; then
# AMD processor
if grep -qw "tsc_scale" <<< "$flags"; then
CPU_FEATURES+=",+invtsc"
fi
if [[ "${BOOT_MODE,,}" == "windows"* ]]; then
CPU_FEATURES+=",arch_capabilities=off"
fi
else
# Intel processor
vmx=$(sed -ne '/^vmx flags/s/^.*: //p' /proc/cpuinfo)
if grep -qw "tsc_scaling" <<< "$vmx"; then
CPU_FEATURES+=",+invtsc"
fi
fi
if [[ "${BOOT_MODE,,}" == "windows"* && "$HV" != [Nn]* ]]; then
HV_FEATURES="hv_passthrough"
if [[ "$vendor" == "AuthenticAMD" ]]; then
# AMD processor
if ! grep -qw "avic" <<< "$flags"; then
HV_FEATURES+=",-hv-avic"
fi
HV_FEATURES+=",-hv-evmcs"
else
# Intel processor
if ! grep -qw "apicv" <<< "$vmx"; then
HV_FEATURES+=",-hv-apicv,-hv-evmcs"
else
if [[ "$CPU" == "Intel Atom "* || "$CPU" == "Intel Celeron "* || "$CPU" == "Intel Pentium "* ]]; then
# Prevent eVMCS version range error on budget CPU's
HV_FEATURES+=",-hv-evmcs"
fi
fi
fi
[ -n "$CPU_FEATURES" ] && CPU_FEATURES+=","
CPU_FEATURES+="${HV_FEATURES}"
fi
else
KVM_OPTS=""
CPU_FEATURES="l3-cache=on,+hypervisor"
if [[ "$ARCH" == "amd64" ]]; then
KVM_OPTS=" -accel tcg,thread=multi"
fi
if [ -z "$CPU_MODEL" ]; then
if [[ "$ARCH" == "amd64" ]]; then
if [[ "${BOOT_MODE,,}" != "windows"* ]]; then
CPU_MODEL="max"
CPU_FEATURES+=",migratable=no"
else
if [[ "$vendor" == "AuthenticAMD" ]]; then
# AMD processor
CPU_MODEL="EPYC"
CPU_FEATURES+=",svm=off,arch_capabilities=off,-fxsr-opt,-misalignsse,-osvw,-topoext,-nrip-save,-xsavec,check"
else
# Intel processor
CPU_MODEL="Skylake-Client-v4"
CPU_FEATURES+=",vmx=off,-pcid,-tsc-deadline,-invpcid,-spec-ctrl,-xsavec,-xsaves,check"
fi
fi
else
# Intel processor
CPU_MODEL="Skylake-Client-v4"
CPU_FEATURES+=",vmx=off,-pcid,-tsc-deadline,-invpcid,-spec-ctrl,-xsavec,-xsaves,check"
fi
fi
fi
if [[ "$ARGUMENTS" == *"-cpu host,"* ]]; then
args="${ARGUMENTS} "
prefix="${args/-cpu host,*/}"
suffix="${args/*-cpu host,/}"
param="${suffix%% *}"
suffix="${suffix#* }"
args="${prefix}${suffix}"
ARGUMENTS="${args::-1}"
if [ -z "$CPU_FLAGS" ]; then
CPU_FLAGS="$param"
else
CPU_FLAGS+=",$param"
fi
else
if [[ "$ARGUMENTS" == *"-cpu host"* ]]; then
ARGUMENTS="${ARGUMENTS//-cpu host/}"
fi
fi
if [ -z "$CPU_FLAGS" ]; then
if [ -z "$CPU_FEATURES" ]; then
CPU_FLAGS="$CPU_MODEL"
else
CPU_FLAGS="$CPU_MODEL,$CPU_FEATURES"
fi
else
if [ -z "$CPU_FEATURES" ]; then
CPU_FLAGS="$CPU_MODEL,$CPU_FLAGS"
else
CPU_FLAGS="$CPU_MODEL,$CPU_FEATURES,$CPU_FLAGS"
fi
fi
return 0
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