xilinx-zynq-a9: cannot set up guest memory 'zynq.ext_ram'

[Bin Meng]

Hi,

The following command used to work on QEMU 4.2.0, but is now broken
with QEMU head.

$ qemu-system-arm -M xilinx-zynq-a9 -display none -m 40000000
-nographic -serial /dev/null -serial mon:stdio -monitor null -device
loader,file=u-boot-dtb.bin,addr=0x4000000,cpu-num=0
qemu-system-arm: cannot set up guest memory 'zynq.ext_ram': Cannot
allocate memory

Any ideas?

Regards,
Bin