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+<think>
+Alright, let's try to figure out which category this bug report falls into. The user provided a detailed description of an issue with QEMU when using KVM on an x86_64 platform, specifically when the `loadvm` operation is performed with `kvm_intel ept=0`.
+
+First, I notice that the problem occurs when the guest OS panics after attempting to load a saved VM state. The user mentioned that this doesn't happen when `ept=1` is used, so it's related to how EPT (Extended Page Tables) or SPT (Shadow Page Tables) are handled.
+
+The key details point towards issues with memory management and page tables during the restore process. The KVM module uses either EPT or SPT for virtualization, and when `ept=0`, it falls back to SPT. The bug arises because after restoring the guest's state (using `loadvm`), the KVM isn't properly notified to clear old page tables, leading to incorrect mappings.
+
+The user mentions that without an ioctl call to flush shadow paging tables, the outdated SPT is reused, causing the panic. They suggest that QEMU should notify KVM to clear these tables when using SPT after `loadvm`.
+
+Looking at the categories provided: hypervisor, kernel, device, etc., the issue seems directly related to how the hypervisor (KVM) interacts with the virtual machine's memory and page tables. The problem isn't about translation between architectures or assembly code, nor is it a graphics or network-related bug.
+
+Instead, this is an issue within the hypervisor itself, specifically in how KVM manages its internal state and page tables when restoring a VM. Therefore, the most appropriate category is "hypervisor".
+</think>
+
+hypervisor
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