leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
d87d67fd61
linux/include/uapi
History
Linus Torvalds ccfff0a2bd virtio-mem: support VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE 
Support the VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature in virtio-mem, now
 that "accidential" access to logically unplugged memory inside added
 Linux memory blocks is no longer possible, because we:
 
 1. Removed /dev/kmem in commit bbcd53c960 ("drivers/char: remove
    /dev/kmem for good")
 2. Disallowed access to virtio-mem device memory via /dev/mem in commit
    2128f4e21a ("virtio-mem: disallow mapping virtio-mem memory via
    /dev/mem")
 3. Sanitized access to virtio-mem device memory via /proc/kcore in
    commit 0daa322b8f ("fs/proc/kcore: don't read offline sections,
    logically offline pages and hwpoisoned pages")
 4. Sanitized access to virtio-mem device memory via /proc/vmcore in
    commit ce2814622e ("virtio-mem: kdump mode to sanitize /proc/vmcore
    access")
 
 The new VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature that will be required
 by some hypervisors implementing virtio-mem in the near future, so let's
 support it now that we safely can.
 
 Signed-off-by: David Hildenbrand <david@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAmGL2C8RHGRhdmlkQHJl
 ZGhhdC5jb20ACgkQTd4Q9wD/g1r2QA/+IdGIOX8TcFqsCYwf8YK9Lt3HyyabFVvJ
 WzIdWvCLlrbKIQDi7suAVlQlTOccFtjWSUJNd2B6Sk6GzlRGeySabZZMhKEzcUQL
 vTEtDoLsuKUzZRuNHzyK2FUemevTavZ+O+F4Gk6gg0X5drqhOlPyfJwp/FuNnBCl
 KuMzYlre//62Uq/Be0+OlYS4rmfmVRfY6KSJmy9EudmMv7py3YTpz2Pa8WcrTntd
 ClsdL65xCUdit5xTB4foApSOGplN6mjE04DAYpcAH5FUNLrsgE4sa9odtO0SQyfv
 ZAT/zrWPksqN5ZsgEgKo/SnAsAySylPzSMzUGzrsWaThOmwqJvCLZNorUrqKXrVs
 7D7mW4SlXU3joaF8vW6AXuLAq8S53l9ULx1vAHoU1d1otmLr/erMq85Ziko2muoM
 gr5IuqN0uTrPO6cvK6bAJIbm2TYoSEp+yUwauMGfS0Rg0oIWLiDa9KJlBkQK9AN1
 zTddrRZq21suuxgtUZNaGSzvNJPqNCVZW2UYcjr/zr5MOIyQpK7z6hViWDNUCywn
 4kKGN+imWBkAFbv+uJTcDqR2NCXWdDCK2gU6dwfZ7F1lfV/oPK8JhZpA1A9gHmY6
 FSwSCqKQJBUgvhyeQr6fuOjl1PoWVGNGHrxr8u4ID6uReyVu7y4GoOKbA3epAqO2
 WfZ58Xx62BM=
 =gxVD
 -----END PGP SIGNATURE-----

Merge tag 'virtio-mem-for-5.16' of git://github.com/davidhildenbrand/linux

Pull virtio-mem update from David Hildenbrand:
 "Support the VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature in virtio-mem,
  now that "accidential" access to logically unplugged memory inside
  added Linux memory blocks is no longer possible, because we:

   - Removed /dev/kmem in commit bbcd53c960 ("drivers/char: remove
     /dev/kmem for good")

   - Disallowed access to virtio-mem device memory via /dev/mem in
     commit 2128f4e21a ("virtio-mem: disallow mapping virtio-mem memory
     via /dev/mem")

   - Sanitized access to virtio-mem device memory via /proc/kcore in
     commit 0daa322b8f ("fs/proc/kcore: don't read offline sections,
     logically offline pages and hwpoisoned pages")

   - Sanitized access to virtio-mem device memory via /proc/vmcore in
     commit ce2814622e ("virtio-mem: kdump mode to sanitize
     /proc/vmcore access")

  The new VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE feature that will be
  required by some hypervisors implementing virtio-mem in the near
  future, so let's support it now that we safely can"

* tag 'virtio-mem-for-5.16' of git://github.com/davidhildenbrand/linux:
  virtio-mem: support VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE
2021-11-13 13:14:05 -08:00
..
asm-generic Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
drm drm for 5.16-rc1 2021-11-02 16:47:49 -07:00
linux virtio-mem: support VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE 2021-11-13 13:14:05 -08:00
misc habanalabs: define uAPI to export FD for DMA-BUF 2021-10-18 12:05:47 +03:00
mtd
rdma RDMA v5.16 merge window pull request 2021-11-03 08:05:59 -07:00
scsi scsi: fc: Add EDC ELS definition 2021-08-24 22:56:33 -04:00
sound sound updates for 5.16-rc1 2021-11-03 07:49:25 -07:00
video
xen
Kbuild