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docs/drivers/virtualbox/virtualbox_linux.go
Lars Kanis 850e2646a6 Fix detection of virtualisation support on AMD CPU.
This also changes the amd test case to /proc/cpuinfo content of
a real AMD CPU.

Signed-off-by: Lars Kanis <lars@greiz-reinsdorf.de>
2015-12-07 07:39:24 +01:00

42 lines
1002 B
Go

package virtualbox
import (
"bytes"
"io/ioutil"
"github.com/docker/machine/libmachine/log"
)
// IsVTXDisabled checks if VT-X is disabled in the BIOS. If it is, the vm will fail to start.
// If we can't be sure it is disabled, we carry on and will check the vm logs after it's started.
// We want to check that either vmx or svm flags are present in /proc/cpuinfo.
func (d *Driver) IsVTXDisabled() bool {
cpuinfo, err := ioutil.ReadFile("/proc/cpuinfo")
if err != nil {
log.Debugf("Couldn't check that VT-X/AMD-v is enabled. Will check that the vm is properly created: %v", err)
return false
}
return isVTXDisabled(cpuinfo)
}
func isVTXDisabled(cpuinfo []byte) bool {
features := [2][]byte{
{'v', 'm', 'x'},
{'s', 'v', 'm'},
}
for _, v := range features {
if bytes.Contains(cpuinfo, v) {
return false
}
}
return true
}
func detectVBoxManageCmd() string {
return detectVBoxManageCmdInPath()
}
func getShareDriveAndName() (string, string) {
return "hosthome", "/home"
}