Commit c06ec1e3 authored by Gustavo Zacarias's avatar Gustavo Zacarias Committed by Thomas Petazzoni
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configs/qemu: update arm-vexpress instructions for SMP 



We can use the vexpress arm defconfig to test SMP features in Qemu.
So document the necessary invocation changes to account for this, in
preparation of the arm nuri defconfig removal.

Signed-off-by: default avatarGustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent 75b70492

board/qemu/arm-vexpress/readme.txt

+4 −1
Original line number Diff line number Diff line 
Run the emulation with:



  qemu-system-arm -M vexpress-a9 -m 256 -kernel output/images/zImage -dtb output/images/vexpress-v2p-ca9.dtb -drive file=output/images/rootfs.ext2,if=sd,format=raw -append "console=ttyAMA0,115200 root=/dev/mmcblk0" -serial stdio -net nic,model=lan9118 -net user

  qemu-system-arm -M vexpress-a9 -smp 1 -m 256 -kernel output/images/zImage -dtb output/images/vexpress-v2p-ca9.dtb -drive file=output/images/rootfs.ext2,if=sd,format=raw -append "console=ttyAMA0,115200 root=/dev/mmcblk0" -serial stdio -net nic,model=lan9118 -net user



The login prompt will appear in the terminal that started Qemu. The

graphical window is the framebuffer.



If you want to emulate more cores change "-smp 1" to "-smp 2" for

dual-core or even "smp -4" for a quad-core configuration.



Tested with QEMU 2.3.0