2019-01-02 23:46:01 -05:00
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./need.sh python kvm busybox
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redo-ifchange "$2.initrd" memcalc.py
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2019-02-02 23:54:27 -05:00
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rm -f "$1.out" "$1.code"
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2019-01-02 23:46:01 -05:00
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# Linux only allows an initrd of size < 50% of RAM,
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# so set a RAM amount based on the initrd size.
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mem=$(./memcalc.py "$2.initrd")
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2019-01-14 06:44:55 +00:00
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echo "$2: kvm memory required: $mem" >&2
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2019-01-02 23:46:01 -05:00
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kvm \
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-m "$mem" \
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-kernel /boot/vmlinuz-$(uname -r) \
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-initrd "$2.initrd" \
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-append 'rdinit=/rdinit panic=1 console=ttyS0 loglevel=4' \
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-no-reboot \
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-display none \
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-chardev stdio,mux=on,id=char0 \
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2019-02-02 23:54:27 -05:00
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-chardev file,id=char1,path="$1.out" \
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-chardev file,id=char2,path="$1.code" \
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2019-01-02 23:46:01 -05:00
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-serial chardev:char0 \
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-serial chardev:char1 \
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2019-01-14 06:44:55 +00:00
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-serial chardev:char2 >&2
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2019-02-20 19:14:37 -05:00
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fix_cr() {
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# serial devices use crlf (\r\n) as line
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# endings instead of just lf (\n).
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sed -e 's/\r//g'
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}
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rv=$(fix_cr <"$1.code")
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[ -n "$rv" ] || exit 99
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2019-01-02 23:46:01 -05:00
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if [ "$rv" -eq 0 ]; then
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2019-02-20 19:14:37 -05:00
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fix_cr <"$1.out" >$3
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2019-01-02 23:46:01 -05:00
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echo "ok." >&2
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else
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echo "kvm program returned error: $rv" >&2
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fi
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exit "$rv"
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