[Qemu-devel] [PATCH v3 0/3] ppc: Broadcast tlb flush should have global effect

[Nikunj A Dadhania]

PowerPC targets should do tlb invalidation on other cpus on 
instructions that expect a global effect.

* ptesync for BookS
* tlbsync primarily for BookE
  (for BookS make it a nop, as it always come along with ptesync)
* tlbivax for other ppc tragets
* H_REMOVE, H_BULK_REMOVE and H_PROTECT hcalls in case of pseries

The implementation provides a single point that can be used in MTTCG for 
doing async-flushes.

The patchset introduces bit-flags in CPUPPCState::tlb_need_flush:

  TLB_NEED_LOCAL_FLUSH (0x1) - Flush local tlb
  TLB_NEED_GLOBAL_FLUSH (0x2) - Flush tlb on other cpus.

Nikunj A Dadhania (3):
  target-ppc: add TLB_NEED_LOCAL_FLUSH flag
  target-ppc: add flag in chech_tlb_flush()
  target-ppc: tlbie should have global effect

 hw/ppc/spapr_hcall.c     |  6 ++++--
 target-ppc/cpu.h         |  2 ++
 target-ppc/excp_helper.c |  4 ++--
 target-ppc/helper.h      |  2 +-
 target-ppc/helper_regs.h | 25 +++++++++++++++++++++----
 target-ppc/mmu-hash64.c  |  6 +++---
 target-ppc/mmu_helper.c  | 20 ++++++++++++--------
 target-ppc/translate.c   | 26 ++++++++++++++++----------
 8 files changed, 61 insertions(+), 30 deletions(-)

-- 
2.7.4