feat: Support UUID flag (#162)

src/config.sh

@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
+: "${UUID:=""}"
 : "${SERIAL:="mon:stdio"}"
 : "${USB:="qemu-xhci,id=xhci"}"
 : "${MONITOR:="telnet:localhost:7100,server,nowait,nodelay"}"
@@ -13,6 +14,7 @@ RAM_OPTS=$(echo "-m ${RAM_SIZE^^}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
 MON_OPTS="-monitor $MONITOR -name $PROCESS,process=$PROCESS,debug-threads=on"
 [ -n "$USB" ] && [[ "${USB,,}" != "no"* ]] && USB_OPTS="-device $USB -device usb-kbd -device usb-tablet"
 MAC_OPTS="-machine type=${MACHINE},secure=${SECURE},dump-guest-core=off${KVM_OPTS}"
+[ -n "$UUID" ] && MAC_OPTS="$MAC_OPTS -uuid $UUID"
 DEV_OPTS="-object rng-random,id=objrng0,filename=/dev/urandom"
 DEV_OPTS+=" -device virtio-rng-pci,rng=objrng0,id=rng0,bus=pcie.0,addr=0x1c"
 [[ "${BOOT_MODE,,}" != "windows"* ]] && DEV_OPTS+=" -device virtio-balloon-pci,id=balloon0,bus=pcie.0,addr=0x4"

src/proc.sh

@@ -44,15 +44,11 @@ if [[ "$KVM" != [Nn]* ]]; then
   if [ -n "$KVM_ERR" ]; then
     KVM="N"
     if [[ "$OSTYPE" =~ ^darwin ]]; then
-      warn "you are using MacOS which has no KVM support, this will cause a major loss of performance."
+      warn "you are using macOS which has no KVM support, this will cause a major loss of performance."
     else
-      if grep -qi Microsoft /proc/version; then
-        warn "you are using Windows 10 which has no KVM support, this will cause a major loss of performance."
-      else
-        error "KVM acceleration not available $KVM_ERR, this will cause a major loss of performance."
-        error "See the FAQ on how to diagnose the cause, or continue without KVM by setting KVM=N (not recommended)."
-        [[ "$DEBUG" != [Yy1]* ]] && exit 88
-      fi
+      error "KVM acceleration not available $KVM_ERR, this will cause a major loss of performance."
+      error "See the FAQ on how to diagnose the cause, or continue without KVM by setting KVM=N (not recommended)."
+      [[ "$DEBUG" != [Yy1]* ]] && exit 88
     fi
   fi