From: Gustavo Zacarias Date: Sun, 7 Feb 2016 23:39:06 +0000 (-0300) Subject: configs/qemu: update arm-vexpress instructions for SMP X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c06ec1e397b1344897ed9a1959d02f76b550982c;p=buildroot.git 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: Gustavo Zacarias Signed-off-by: Thomas Petazzoni --- diff --git a/board/qemu/arm-vexpress/readme.txt b/board/qemu/arm-vexpress/readme.txt index 7ca4e891ea..c7a7607da7 100644 --- a/board/qemu/arm-vexpress/readme.txt +++ b/board/qemu/arm-vexpress/readme.txt @@ -1,8 +1,11 @@ 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