Re: [PATCH v1 1/3] /dev/mem: disallow access to explicitly excluded system RAM regions

2021-08-11 Thread Andy Shevchenko
On Wednesday, August 11, 2021, David Hildenbrand wrote: > virtio-mem dynamically exposes memory inside a device memory region as > system RAM to Linux, coordinating with the hypervisor which parts are > actually "plugged" and consequently usable/accessible. On the one hand, the > virtio-mem

[PATCH v1 1/3] /dev/mem: disallow access to explicitly excluded system RAM regions

2021-08-11 Thread David Hildenbrand
virtio-mem dynamically exposes memory inside a device memory region as system RAM to Linux, coordinating with the hypervisor which parts are actually "plugged" and consequently usable/accessible. On the one hand, the virtio-mem driver adds/removes whole memory blocks, creating/removing busy