• State Accepted Answer
  • +1 person also asked this people also asked this
  • Locked Locked
  • Replies 1 reply
  • Subscribers 120 subscribers
  • Views 1347 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

What does "permits caching of GPT information in a TLB" mean?

Ming Gao

Hello, everyone, I am reading chapter D9 "The Granule Protection Check Mechanism" in A-profile architecture, and I have get some question here:

  1. I_PZSYC says "For implementations that choose to do so for area or performance reasons, the architecture permits caching of GPT information in a TLB.". I can understand setting up a cache similar to the TLB for GPT lookup acceleration, but is it appropriate to put the GPT directly into the TLB, which seems to save a table but essentially destroys the TLB's original purpose of translating VA and PA?
  2. What new instructions have been added to the ARM for GPT table processing, other than TLBI PAALLOS, etc.?

Parents Reply Children
No data