Re: [PATCH v1 8/8] virtio-mem: kdump mode to sanitize /proc/vmcore access

[...] + +static bool virtio_mem_vmcore_pfn_is_ram(struct vmcore_cb *cb, +unsigned long pfn) +{ + struct virtio_mem *vm = container_of(cb, struct virtio_mem, +vmcore_cb); + uint64_t addr = PFN_PHYS(pfn

[PATCH v1 8/8] virtio-mem: kdump mode to sanitize /proc/vmcore access

Although virtio-mem currently supports reading unplugged memory in the hypervisor, this will change in the future, indicated to the device via a new feature flag. We similarly sanitized /proc/kcore access recently. [1] Let's register a vmcore callback, to allow vmcore code to check if a PFN belong