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authorRobert Yang <liezhi.yang@windriver.com>2015-06-25 01:56:03 -0700
committerRobert Yang <liezhi.yang@windriver.com>2015-06-25 18:26:06 -0700
commitec38a9b641108bba14f8be1c71c50cc85e6f9f86 (patch)
treebffd9d5f7437c6c88969bc758ba330a9df529ae6 /scripts/runqemu-export-rootfs
parentdd6a444cfc1ef527520a0e3490b6a243f0e7679c (diff)
downloadopenembedded-core-contrib-rbt/qemu_v2.tar.gz
runqemu: enable kvm when use tap under sudorbt/qemu_v2
Enable kvm support automatically when use tap interface under sudo, the thought is, if sudo works well, and qemu-native has been built with kvm support, and kvm can be enabled, then enable it, it can be disabled by nokvm option. The previous command: $ runqemu qemux86 kvm may not work since it checks the current user's read/write permission on /dev/kvm and /dev/vhost-net but failed without sudo, it can't use sudo to check them since sudo is not a must, sudo is only required when need create tap interface, this patch can enable it automatically. Enable kvm can improve qemu's performance a lot, when test perl-5.22's lib/warnings.t on qemux86-64, 70 times improved. Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Diffstat (limited to 'scripts/runqemu-export-rootfs')
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