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Put the definitions of the hypercalls usable only by pv guests inside
CONFIG_XEN_PV sections.
On Arm two dummy functions related to pv hypercalls can be removed.
While at it remove the no longer supported tmem hypercall definition.
Signed-off-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20211028081221.2475-3-jgross@suse.com
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Change the third parameter to be the required struct xen_dm_op_buf *
instead of a generic void * (which blindly accepts any pointer).
Signed-off-by: Sergey Dyasli <sergey.dyasli@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
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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>
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ARM and arm64 Xen ports share a number of headers, leading to
packaging issues when these headers needs to be exported, as it
breaks the reasonable requirement that an architecture port
has self-contained headers.
Fix the issue by moving the 5 header files to include/xen/arm,
and keep local placeholders to include the relevant files.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
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Juergen Gross
Sergey Dyasli
Paul Durrant
Marc Zyngier