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author | Robert Yang <liezhi.yang@windriver.com> | 2015-06-25 01:56:03 -0700 |
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committer | Robert Yang <liezhi.yang@windriver.com> | 2015-06-25 18:26:06 -0700 |
commit | ec38a9b641108bba14f8be1c71c50cc85e6f9f86 (patch) | |
tree | bffd9d5f7437c6c88969bc758ba330a9df529ae6 /scripts/runqemu-export-rootfs | |
parent | dd6a444cfc1ef527520a0e3490b6a243f0e7679c (diff) | |
download | openembedded-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')
0 files changed, 0 insertions, 0 deletions