A30 NVRM: This PCI I/O region assigned to your NVIDIA device is invalid

I have a Dell R750 server with ESXI 7.0 installed, and use A30 passthrough to Guest OS Ubuntu 20.04. However, when I open the NVIDIA control panel, there is no display, and an error is reported in the log as shown in the figure below
Jul 8 10:48:17 natx-virtual-machine kernel:[903.827918]NVRM: This PCI I/O region assigned to your nVIDIA device is invalid:
Jul 8 10:48:17 natx-virtual-machine kernel: [903.827918]NVRM:BAR1 iS OM @ Ox0(PCI:0000:0b:00.0)
Jul 8 10:48:17 natx-virtual-machine kernel:[ 903.829185] nvidia: probe of 0000:0b:00.0 failed witherror-1
Jul 8 10:48:17 natx-virtual-machine kernel: [ 903.829196]NVRM: The NVIDIA pr obe routine failed for 1device(s).
Jul8 10:48:17 natx-virtual-machine kernel:[903.829197] NVRM:None of the N VIDIA devices were initialized.
Jul 8 10:48:17 natx-virtual-machine kernel:[903.829349] nvidia-nvlink: Unre gistered the Nvlink Core, major device number 235
Jul 8 10:48:17 natx-virtual-machine systemd-udevd[587]:nvidia: Process/sbin/modprobe nvidia-drm’failed with exit code 1.
Jul 8 10:48:17 natx-virtual-machine kernel:[ 903.930254] nvidia-nvlink: Nvli nk Core is being initialized, major device number 235
Jul 8 10:48:17 natx-virtual-machine kernel:[ 903.930261]NVRM: This PCI I/0 region assigned to your NVIDIA device is invalid:
Jul 8 10:48:17 natx-virtual-machine kernel:[ 903.930261]NVRM: BAR1 is OM @0x0(PCI:0000:0b:00.0)
Jul 8 10:48:17 natx-virtual-machine kernel:[ 903.931538] nvidia: probe of 0o
00:0b:00.0 failed with error-1
Jul 8 10:48:17 natx-virtual-machine kernel:[ 903.931548] NVRM: The NVIDIA pr
obe routine failed for 1device(s).
Jul 8 10:48:17 natx-virtual-machine kernel:[ 903.931549]NVRM:None of the N
VIDIA devices were initialized.
Jul 8 10:48:17 natx-virtual-machine kernel:[ 903.931717] nvidia-nvlink: Unre gistered the Nvlink Core, major device number 2351htvanaty uirtua1 marhino.ivariions.

I’ve set up the BIOS, test with 56T 12T 512G ,same .
Memory Mapped I/O above 4 GB enable
memory mapped i/o base 56T/12T/512GB

Please correctly set up the VM (EFI boot, enough mmio space)
https://blogs.vmware.com/apps/2018/10/how-to-enable-nvidia-v100-gpu-in-passthrough-mode-on-vsphere-for-machine-learning-and-other-hpc-workloads.html