Method and apparatus for determining physical address

An apparatus for determining a physical address, which is configured to convert a linear address into the physical address, comprising:

• a page size decoder, configured to obtain a page size according to the higher-order N bits of the linear address, wherein N is greater than 0 and less than a quantity of bits of the linear address;
• an index processor, configured to obtain an index number of a translation lookaside buffer TLB according to the page size;
• a mask decoder, configured to obtain a Mask according to the page size and a supported minimum page size;
• a label processor, configured to obtain a label of the TLB according to the mask;
• and
• a physical address determining unit, configured to obtain, by searching the TLB according to the index number and the label, the higher-order MAC1 bits of a physical address corresponding to the linear address;
• wherein
• the physical address determining unit is further configured to obtain the physical address according to the mask, the supported minimum page, and the higher-order MAC1 bits of the physical address, wherein the physical address is used for memory access.