Posted on

Hardware Protection Scheme 

  • Unlike segmentation paging uses a flag user/supervisor to check read write privileges.
  • If the flag is set to 0 page can only be accessed if CPL is < 3 else it can always be accessed 
  • Read write + read are the only modes of access and it is marked in the page directory or the page table entry

Leave a Reply

Fill in your details below or click an icon to log in:

Gravatar
WordPress.com Logo

You are commenting using your WordPress.com account. ( Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. ( Log Out /  Change )

Cancel

Connecting to %s