From c06ec1e397b1344897ed9a1959d02f76b550982c Mon Sep 17 00:00:00 2001 From: Gustavo Zacarias Date: Sun, 7 Feb 2016 20:39:06 -0300 Subject: [PATCH] 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 --- board/qemu/arm-vexpress/readme.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) 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