KVM: PPC: e500: TLB emulation for IND entries

Handle indirect entries (IND) in TLB emulation code. Translation size of IND
entries differ from the size of referred Page Tables (Linux guests now use IND
of 2MB for 4KB PTs) and this require careful tweak of the existing logic.

TLB search emulation requires additional search in HW TLB0 (since these entries
are directly added by HTW) and found entries shoud be presented to the guest with
RPN changed from PFN to GFN. There might be more GFNs pointing to the same PFN so
the only way to get the corresponding GFN is to search it in guest's PTE. If IND
entry for the corresponding PT is not available just invalidate guest's ea and
report a tlbsx miss. This patch only implements the invalidation and let a TODO
note for searching HW TLB0.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
(cherry picked and merged from sdk1.5 commit fa267bdd889348c8f7f1ebd0f72173ad5c780abc)
Change-Id: Ibb3910c44a5413aa0b2ace0c858f46643c0dfa8d
Reviewed-on: http://git.am.freescale.net:8181/11561
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Stuart Yoder <stuart.yoder@freescale.com>
Reviewed-by: Jose Rivera <German.Rivera@freescale.com>

0 files changed, 0 insertions, 0 deletions