diff options
| author | Paul Durrant <paul.durrant@citrix.com> | 2017-02-13 20:03:23 +0300 |
|---|---|---|
| committer | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2017-02-14 23:13:43 +0300 |
| commit | ab520be8cd5d56867fc95cfbc34b90880faf1f9d (patch) | |
| tree | 4c432a918ffbd6308f752eaac36b322b811582b1 /drivers/ata/pata_opti.c | |
| parent | dc9eab6fd94dd26340749321bba2c58634761516 (diff) | |
| download | linux-ab520be8cd5d56867fc95cfbc34b90880faf1f9d.tar.xz | |
xen/privcmd: Add IOCTL_PRIVCMD_DM_OP
Recently a new dm_op[1] hypercall was added to Xen to provide a mechanism
for restricting device emulators (such as QEMU) to a limited set of
hypervisor operations, and being able to audit those operations in the
kernel of the domain in which they run.
This patch adds IOCTL_PRIVCMD_DM_OP as gateway for __HYPERVISOR_dm_op.
NOTE: There is no requirement for user-space code to bounce data through
locked memory buffers (as with IOCTL_PRIVCMD_HYPERCALL) since
privcmd has enough information to lock the original buffers
directly.
[1] http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=524a98c2
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'drivers/ata/pata_opti.c')
0 files changed, 0 insertions, 0 deletions