virtio will get you the best performance so why would you want to use
something slower?
-Joel
On 08/07/2014 11:51 AM, Mathew Li wrote:
Great. VirtIO works for me. Thanks for your help folks!
Is there is any other way to add virtual disk, more like a traditional
disk to qemu-system-aarch64? For example IDE disk or SATA disk or
maybe as a SCSI disk?
On Wed, Aug 6, 2014 at 9:48 AM, Joel Schopp <joel.sch...@amd.com> wrote:
It turns out that after a recent rebase of my kernel and qemu to the
latest the problem is fixed. Rather than hunt down what fixed it I'm
just accepting the win and moving on. -smp 4 now works.
-Joel
On 08/06/2014 11:15 AM, Christoffer Dall wrote:
On Tue, Aug 5, 2014 at 4:18 PM, Joel Schopp <joel.sch...@amd.com> wrote:
On 08/04/2014 07:35 PM, Mathew Li wrote:
Hi,
I have a quick question. How do we add a hard disk to the qemu ARM VM?
I tried:
qemu-system-aarch64 -machine virt -hda disk.img -kernel image -initrd initrd.img
qemu-system-aarch64 -machine virt -sd disk.img -kernel image -initrd initrd.img
qemu-system-aarch64 -machine virt -mtdblock disk.img -kernel image
-initrd initrd.img
Nothing seems to work. I am not able to see any disk (i.e. dev/sdX)
inside guest OS.
I've been running something like this:
qemu-system-aarch64 -smp 1 --enable-kvm -nographic -netdev
tap,id=t0,ifname=tap0,script=no,downscript=no,vhost=on -device
virtio-net-device,netdev=t0,id=nic0 \
-kernel /extra/rootfs/boot/Image -drive file=/extra/rootfs.img,id=fs -device
virtio-blk-device,drive=fs -m 512 -M virt -cpu host -append "console=ttyAMA0
console=ttyS0 root=/dev/vda"
On my system -smp 2 or higher hangs in the guest kernel.
The -smp 2 hang issue is probably due to a missing PSCI v0.2 follow-up
patch to QEMU, you can try:
https://git.linaro.org/people/christoffer.dall/qemu-arm.git/shortlog/refs/heads/psci2-smp-fix
[disclaimer: there may be a better fix somewhere on the qemu list, I
haven't kept track the last couple of days]
-Christoffer
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