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builder/qemu: add simple kvm/tcg autodetection

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Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>
This commit is contained in:
Vasiliy Tolstov 2016-05-17 16:26:59 +03:00
parent 71ccbd4421
commit 0f638f9111
1 changed files with 9 additions and 1 deletions
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10
builder/qemu/builder.go
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@ -154,8 +154,16 @@ func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
if runtime.GOOS == "windows" {
b.config.Accelerator = "tcg"
} else {
b.config.Accelerator = "kvm"
if fp, err := os.Open("/dev/kvm"); err != nil {
b.config.Accelerator = "tcg"
} else {
fp.Close()
b.config.Accelerator = "kvm"
}
}
log.Printf("use detected accelerator: %s", b.config.Accelerator)
} else {
log.Printf("use specified accelerator: %s", b.config.Accelerator)
}
if b.config.MachineType == "" {