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authorGravatar Gustavo Zacarias <gustavo@zacarias.com.ar>2016-02-07 20:39:06 -0300
committerGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2016-02-08 12:12:42 +0100
commitc06ec1e397b1344897ed9a1959d02f76b550982c (patch)
treee7710da3048253d78248e568b13f36f08c60b758 /board/qemu/arm-vexpress/readme.txt
parent75b7049281d11867ed6611a2a1a6a15dadb0b031 (diff)
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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: Gustavo Zacarias <gustavo@zacarias.com.ar> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'board/qemu/arm-vexpress/readme.txt')
-rw-r--r--board/qemu/arm-vexpress/readme.txt5
1 files changed, 4 insertions, 1 deletions
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