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559f4951e2
In runqemu-ifup, ip command is used to add TAP; in runqemu-ifdown, we should do the reversed logic, using ip command to delete TAP, to make sure TAP is cleaned up by ourselves. I can see that in runqemu-ifdown script, 'tunctl -d' and 'iptables' commands are used to deal with TAP, but these two commands cannot make sure that the TAP is cleaned up. runqemu-ifup uses 'ip' to set up TAP, we really need to do the opposite in runqemu-ifdown. (From OE-Core rev: 322e41de7f4fb21315bf75f1038314c31ac4754b) Signed-off-by: Chen Qi <Qi.Chen@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
QEMU Emulation Targets ====================== To simplify development, the build system supports building images to work with the QEMU emulator in system emulation mode. Several architectures are currently supported in 32 and 64 bit variants: * ARM (qemuarm + qemuarm64) * x86 (qemux86 + qemux86-64) * PowerPC (qemuppc only) * MIPS (qemumips + qemumips64) Use of the QEMU images is covered in the Yocto Project Reference Manual. The appropriate MACHINE variable value corresponding to the target is given in brackets.