International Business Machines Corporation
Controlling access to secure storage of a virtual machine

Abstract:

According to one or more embodiments of the present invention, a computer implemented method includes receiving a request from a requestor, to access a page of memory. The requestor is either a secure entity of a computer system or a secure interface control of the computer system. The request is tagged as a secure request from a secure domain of the computer system. It is verified that the request is making an access to a page that is both registered as secure and registered as belonging to the secure domain. The requestor is provided access to the page based at least in part on the page being registered as secure and as belonging to the secure domain. The requestor is prevented from accessing the page, based on one or both of the page not being registered as secure, and the page not being registered as belonging to the secure domain.