How to understand this sentence in the PM spec--"Alternatively, an implementation may choose to "waste" TLB capacity by having up to 4 duplicate entries for each page."

[chara811]

When vsatp=bare,hgatp=sv48x4,GPA[49:48] =00,01,10 or 11,but we can't see these 2 bits, so there will be 4 duplicate pages.
Can I understand it this way?

[gfavor]

Since this a PM-specific question, I suggest asking this on the [email protected] email list to get a good answer.