[RFC PATCH v2 0/3] Cache modelling TCG plugin

[Mahmoud Mandour]

In this RFC patch series, I propose an initial cache modelling TCG
plugin. As of now, it models separate L1 data cache and L1 instruction
cache. It supports three eviction policies: LRU, random, and FIFO. Once
a policy is chosen, it's used for both instruction and data caches.

v1 -> v2: Unlocked dmtx on early return in vcpu_mem_access & removed a
          (probably?) bad InsnData free.
          This is probably still problematic since it does not free the
          ``idata`` allocated for the vcpu_mem_access callback even
          once, but if it's placed, it would double-free it.
          How do I mitigate this? I need to free the InsnData passed to
          vcpu_mem_access only once if we find out that it's an IO
          access since we do not need it anymore and it will early
          return every time.

Mahmoud Mandour (3):
  plugins: Added a new cache modelling plugin
  plugins: cache: Enabled parameterization and added trace printing
  plugins: cache: Added FIFO and LRU eviction policies.

 contrib/plugins/Makefile |   1 +
 contrib/plugins/cache.c  | 595 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 596 insertions(+)
 create mode 100644 contrib/plugins/cache.c

-- 
2.25.1