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+<think>
+Alright, I need to classify this bug report. Let's look at the details.
+
+The user reported an error with QEMU: `VFIO_MAP_DMA failed: -22 IVSHMEM`. They mentioned that it only works when using specific CPU settings in their kvm.sh script. The error seems related to VFIO and DMA mapping, which are part of device assignment or virtualization.
+
+Looking at the provided logs, there's a mention of `vfio_container_dma_map` returning -22 (Invalid argument). VFIO is used for direct device assignment in KVM, so this points towards issues with how devices are being handled. The error occurs during DMA mapping, which is crucial for I/O operations.
+
+The possible categories include 'device' and 'hypervisor'. Since VFIO is involved, which relates to device management under KVM (a hypervisor), but the immediate issue seems to be with how VFIO is handling the device or its resources. Alternatively, since it's related to DMA mappings within the hypervisor environment, it might fall under 'hypervisor' issues.
+
+However, considering that VFIO is part of the I/O virtualization layer and deals directly with devices, the primary category here would likely be 'device'. The failure during DMA mapping suggests a problem in device configuration or resource allocation within QEMU.
+</think>
+
+The bug report involves VFIO and DMA mapping failures when using KVM under specific CPU configurations. This relates to how devices are handled in the hypervisor environment.
+
+**hypervisor**
+
+The error occurs during DMA mapping, which is part of the hypervisor's handling of I/O resources. Therefore, the most appropriate category is 'hypervisor'.
+
+hypervisor
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