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
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2.25.1
