Zhejiang Weige Arts & Crafts Co., Ltd

Alipay (Hangzhou) Information Technology Co., Ltd.

Yong He

Xin Chen

Sheng Ye

Jian Feng Tan

Haixing Chen

Ti Wei Bie

An Qi Shen

Implementations of the present specification provide a method and an apparatus for managing a TLB cache in a virtualization platform, where the virtualization platform runs a plurality of virtual machines, each virtual machine is allocated with a unique VPID, and all virtual logical processors in the virtual machine share the VPID; and a guest process running in the virtual machine is allocated with a PCID. An identifier field of a TLB entry in the TLB cache includes a VPID and a PCID. The method includes: in response to detecting a target guest process involving an invalid address mapping relationship, obtaining a current VPID and a current PCID corresponding to the target guest process; classifying the current PCID into an invalid PCID set corresponding to the current VPID, and selecting a PCID from an available PCID set of a target virtual machine as an updated PCID; and allocating the updated PCID to the target guest process, so an updated entry for the target guest process is recorded in a TLB cache, where an identifier field of the updated entry includes the updated PCID.

Methods and apparatuses for managing TLB cache in virtualization platform

Parasol handle

Parasol stand

An umbrella for facilitating folding of umbrella surface includes an umbrella surface assembly and a pole assembly that are cooperatively connected to each other. The umbrella surface assembly includes a middle stick, an upper umbrella tray, a lower umbrella tray, a set of first cross rods and a set of second cross rods. The upper umbrella tray is hingedly connected to a first diagonal draw bar, a middle portion of the first diagonal draw bar is hingedly connected to a second diagonal draw bar, and a lower end of the first diagonal draw bar is hingedly connected to a sliding portion. The pole assembly includes an outer pole, an inner telescopic rod slidably connected to the outer pole, a traction device and an elastic element.

Shade umbrella for facilitating folding of umbrella surface

Growing community of inventors

Zhejiang, China

Yong He