On Sun, May 30, 2021 at 8:37 AM Mahmoud Mandour <ma.mando...@gmail.com> wrote:
> 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 > >
