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[PATCH 0/9] cputlb: Various cleanups

From: Richard Henderson
Subject: [PATCH 0/9] cputlb: Various cleanups
Date: Thu, 9 Jan 2020 13:48:58 +1100

I had a conversation with Alistair Francis at KVM forum about
being able to represent ASIDs "properly".  This lead to the idea
that target-specific code might be able to cache TLBs outside of
the "main" NB_MMU_MODES -- possibly thousands of them.

This goes nowhere near that far.  But it does begin edging toward
the possibility of having a

    struct CPUTLBSaved {
        CPUTLBDesc d;
        CPUTLBDescFast f;

by moving some of the most basic routines to use CPUTLBDesc and
CPUTLBDescFast directly instead of always using an mmu_idx.

I'm not sure how much time I'll have to go further along these
lines, but what I have so far still looks like a cleanup.


Richard Henderson (9):
  cputlb: Merge tlb_table_flush_by_mmuidx into
  cputlb: Make tlb_n_entries private to cputlb.c
  cputlb: Pass CPUTLBDescFast to tlb_n_entries and sizeof_tlb
  cputlb: Hoist tlb portions in tlb_mmu_resize_locked
  cputlb: Hoist tlb portions in tlb_flush_one_mmuidx_locked
  cputlb: Split out tlb_mmu_flush_locked
  cputlb: Partially merge tlb_dyn_init into tlb_init
  cputlb: Initialize tlbs as flushed
  cputlb: Hoist timestamp outside of loops over tlbs

 include/exec/cpu_ldst.h |   5 --
 accel/tcg/cputlb.c      | 120 +++++++++++++++++++++-------------------
 2 files changed, 64 insertions(+), 61 deletions(-)


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