Controlling access to pages in a memory in a computing device

A computing device that handles address translations, the computing device comprising:

• a processor;
• a hardware table walker;
• and
• a memory, the memory storing a reverse map table (RMT) and a plurality of pages of memory;
• wherein the table walker is configured to:
• receive, from a requesting entity, a request to translate a first address into a second address associated with a page of memory;
• when a lock indicator in an entry in a reverse map table (RMT) associated with the page is set to mark the entry in the RMT as locked, halt processing the request and perform a remedial action;
• and
• when the request is associated with a write access of the page and an immutable indicator in the entry in the RMT is set to mark the page as immutable, halt processing the request and perform the remedial action.

A non-transitory computer-readable storage medium that stores information readable by a computing device, the information comprising:

• a reverse map table comprising a number of entries, each entry associated with a page of memory in the computing device, and each entry comprising:
• a lock indicator, wherein, when the lock indicator is set to mark the entry as locked, the entry is inaccessible to one or more entities in the computing device;
• and
• an immutable indicator, wherein, when the immutable indicator is set to mark a corresponding page as immutable, the corresponding page is inaccessible to software executing on one or more cores in the computing device and the corresponding page cannot be deallocated by the one or more cores.