KVM: PPC: Book3S HV P9: Move radix MMU switching instructions together

Browse source

Switching the MMU from radix<->radix mode is tricky particularly as the
MMU can remain enabled and requires a certain sequence of SPR updates.
Move these together into their own functions.

This also includes the radix TLB check / flush because it's tied in to
MMU switching due to tlbiel getting LPID from LPIDR.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210528090752.3542186-13-npiggin@gmail.com

...

This commit is contained in:

Nicholas Piggin 2021-05-28 19:07:32 +10:00 • committed by Michael Ellerman

parent 09512c2916

commit 48013cbc50

1 changed files with 41 additions and 21 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

62

arch/powerpc/kvm/book3s_hv.c

View file