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graphic: 0.938
device: 0.914
peripherals: 0.905
ppc: 0.868
architecture: 0.862
PID: 0.792
performance: 0.705
permissions: 0.621
semantic: 0.591
debug: 0.552
kernel: 0.504
network: 0.487
arm: 0.471
socket: 0.445
hypervisor: 0.444
register: 0.415
vnc: 0.407
x86: 0.399
TCG: 0.391
VMM: 0.390
files: 0.361
mistranslation: 0.348
risc-v: 0.333
user-level: 0.331
virtual: 0.316
boot: 0.264
i386: 0.223
KVM: 0.220
assembly: 0.122
pci passthrough fails from aarch64 to amd64 guest
Description of problem:
**PCIe device Pass-thru from aarch64 host to amd64 guest fails with the below**
qemu-system-amd64: -device vfio-pci,host=0003:06:00.0: VFIO_MAP_DMA failed: Invalid argument
qemu-system-amd64: -device vfio-pci,host=0003:06:00.0: vfio 0003:06:00.0: failed to setup container for group 25: memory listener initialization failed: Region pc.ram: vfio_dma_map(0xba4058207210, 0x100000, 0xbff00000, 0xeba70a300000) = -22 (Invalid argument)
pass-thru with same command line syntax works correctly if the guest is aarch64 (qemu-system-aarch64).
AMD64 guest VM otherwise works correctly if -device vfio-pci is not used.
libvirt / virtmanager fail for aarch64 host -> amd64 guest as well.
Steps to reproduce:
1. Unbind pass-thru device from host.
2. Attach pass-thru device to vfio-pci
3. Execute qemu-system-amd64 as above.
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