Commit 928ec374 authored by Michael S. Tsirkin's avatar Michael S. Tsirkin Committed by Marcelo Tosatti
Browse files

kvm-unit-test: more documentation and runner script



Add documentation about using qemu-system for unit tests.
Add runner script to select the correct binary and flags.
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent d3db85a3
......@@ -10,10 +10,23 @@ To create the tests' images just type 'make' in this directory.
Tests' images created in ./<ARCH>/*.flat
An example of a test invocation:
qemu-system-x86_64 -device testdev,chardev=testlog -chardev file,id=testlog,path=msr.out -serial stdio -kernel ./x86/msr.flat
Using qemu-kvm:
qemu-kvm -device testdev,chardev=testlog -chardev file,id=testlog,path=msr.out -serial stdio -kernel ./x86/msr.flat
This invocation runs the msr test case. The test outputs to stdio.
Using qemu (supported since qemu 1.3):
qemu-system-x86_64 -enable-kvm -device pc-testdev -serial stdio -device isa-debug-exit,iobase=0xf4,iosize=0x4 -kernel ./x86/msr.flat
Or use a runner script to detect the correct invocation:
./x86-run ./x86/msr.flat
To select a specific qemu binary, specify the QEMU=<path> environment:
QEMU=/tmp/qemu/x86_64-softmmu/qemu-system-x86_64 ./x86-run ./x86/msr.flat
The exit status of the binary (and the script) is inconsistent: with
qemu-system, after the unittest is done, the exit status of qemu is 1,
different from the 'old style' qemu-kvm, whose exit status in successful
completion is 0.
Directory structure:
.: Makefile and config files for the tests
......
#!/usr/bin/bash
qemukvm="${QEMU:-qemu-kvm}"
qemusystem="${QEMU:-qemu-system-x86_64}"
if
${qemukvm} -device '?' 2>&1 | fgrep -e \"testdev\" -e \"pc-testdev\" > /dev/null;
then
qemu="${qemukvm}"
else
if
${qemsystem} -device '?' 2>&1 | fgrep -e \"testdev\" -e \"pc-testdev\" > /dev/null;
then
qemu="${qemusystem}"
else
echo QEMU binary ${QEMU} has no support for test device. Exiting.
exit 1
fi
fi
if
${qemu} -device '?' 2>&1 | fgrep "pc-testdev" > /dev/null;
then
command="${qemu} -enable-kvm -device pc-testdev -serial stdio -device isa-debug-exit,iobase=0xf4,iosize=0x4 -kernel"
else
command="${qemu} -device testdev,chardev=testlog -chardev file,id=testlog,path=msr.out -serial stdio -kernel"
fi
exec ${command} "$@"
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