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<think>
Okay, I need to classify the bug report provided into one of the given categories: mistranslation, assembly, other, device, graphic, socket, network, KVM, boot, vnc, debug, files, permissions, performance, kernel, peripherals, hypervisor.
The bug is about PCI passthrough failing from an aarch64 host to an amd64 guest. The error messages mention vfio-pci and issues with VFIO_MAP_DMA and memory listeners. It also says that the same setup works when using aarch64 as the guest but fails for amd64.
Looking at the possible categories, 'device' seems relevant because it's related to hardware device passthrough. The problem is with passing through a PCIe device, which is a hardware peripheral. So, 'peripherals' might also be applicable. However, since the issue specifically involves vfio-pci and DMA mapping errors, it's more directly related to how devices are handled in the system.
The error occurs during device setup, so 'device' category fits as it pertains to the handling of hardware devices by QEMU.
</think>
device
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