diff options
| author | Paul Mackerras <paulus@ozlabs.org> | 2018-10-08 16:31:10 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-09 16:04:27 +1100 |
| commit | 690ed4cad87a34781a7f3c34a6cebda6cc2cc06c (patch) | |
| tree | d745c47da3014ea5566ca3b33ec782a6b8c81432 /Documentation/media | |
| parent | e3b6b4661527e821ffbe3db83952fdb1e6e47c49 (diff) | |
KVM: PPC: Book3S HV: Use hypercalls for TLB invalidation when nested
This adds code to call the H_TLB_INVALIDATE hypercall when running as
a guest, in the cases where we need to invalidate TLBs (or other MMU
caches) as part of managing the mappings for a nested guest. Calling
H_TLB_INVALIDATE lets the nested hypervisor inform the parent
hypervisor about changes to partition-scoped page tables or the
partition table without needing to do hypervisor-privileged tlbie
instructions.
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'Documentation/media')
0 files changed, 0 insertions, 0 deletions