970d3b096f
Instead of running on the host, it can be useful to run in a VM, particularly to test kernel rather than userspace changes, so add a few scripts that allow doing so easily. The basic idea is that the VM kernel is the same architecture as the host kernel, so the host's root filesystem can be used (in read-only mode) to run everything. Only a log filesystem is mounted read-write and will get all the test output. The kernel console output is collected to a special 'console' file in the logs directory and kernel crashes are detected. Signed-hostap: Johannes Berg <johannes.berg@intel.com>
46 lines
1.4 KiB
Bash
Executable file
46 lines
1.4 KiB
Bash
Executable file
#!/bin/bash
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cd "$(dirname $0)"
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if [ -z "$TESTDIR" ] ; then
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TESTDIR=$(pwd)/../
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fi
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LOGS=/tmp/hwsim-test-logs/
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# increase the memory size if you want to run with valgrind, 512 MB works
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MEMORY=128
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# Some ubuntu systems (notably 12.04) have issues with this - since the guest
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# mounts as read-only it should be safe to not specify ,readonly. Override in
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# vm-config if needed (see below)
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ROTAG=,readonly
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# set this to ttyS0 to see kvm messages (if something doesn't work)
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KVMOUT=ttyS1
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# you can set EPATH if you need anything extra in $PATH inside the VM
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#EPATH=/some/dir
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test -f vm-config && . vm-config
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if [ -z "$KERNELDIR" ] ; then
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echo "You need to set a KERNELDIR (in the environment or vm-config)"
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exit 2
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fi
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KERNEL=$KERNELDIR/arch/x86_64/boot/bzImage
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CMD=$TESTDIR/vm/inside.sh
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LOGDIR=$LOGS/$(date +%s)
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mkdir -p $LOGDIR
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exec kvm \
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-kernel $KERNEL -smp 4 \
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-s -m $MEMORY -nographic \
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-fsdev local,security_model=none,id=fsdev-root,path=/$ROTAG \
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-device virtio-9p-pci,id=fs-root,fsdev=fsdev-root,mount_tag=/dev/root \
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-fsdev local,security_model=none,id=fsdev-logs,path="$LOGDIR",writeout=immediate \
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-device virtio-9p-pci,id=fs-logs,fsdev=fsdev-logs,mount_tag=logshare \
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-monitor null -serial stdio -serial file:$LOGDIR/console \
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-append "mac80211_hwsim.radios=5 init=$CMD testdir=$TESTDIR console=$KVMOUT root=/dev/root rootflags=trans=virtio,version=9p2000.u ro rootfstype=9p EPATH=$EPATH ARGS=$*"
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