US 12,292,837 B2
Information processing apparatus and control method
Yuji Shirahige, Kawasaki (JP)
Assigned to FUJITSU LIMITED, Kawasaki (JP)
Filed by FUJITSU LIMITED, Kawasaki (JP)
Filed on Sep. 13, 2022, as Appl. No. 17/931,746.
Claims priority of application No. 2021-201757 (JP), filed on Dec. 13, 2021.
Prior Publication US 2023/0185726 A1, Jun. 15, 2023
Int. Cl. G06F 12/1009 (2016.01); G06F 12/0815 (2016.01); G06F 12/0891 (2016.01)
CPC G06F 12/1009 (2013.01) [G06F 12/0815 (2013.01); G06F 12/0891 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An information processing apparatus comprising:
a conversion buffer configured to store a conversion pair of a virtual address of a page and a physical address;
a page table cache configured to store data in a page table at a level other than a last level among page tables at a plurality of levels included in a multistage page table and a physical address of the data in association with each other;
a memory; and
a processor coupled to the memory, and configured to:
store a hash of the virtual address and process management information of a conversion source in each entry of the page table cache,
specify at least one of the hash of the virtual address or the process management information based on a maintenance instruction of deleting the conversion pair in the conversion buffer,
determine a match of an entry of at least one of the hash of the virtual address and the process management information, and
delete the determined match in the page table cache based on the maintenance instruction.