Advanced micro devices, inc. (20250130958). Root-Trusted Guest Memory Page Management
Root-Trusted Guest Memory Page Management
Organization Name
Inventor(s)
David A. Kaplan of Austin TX US
Root-Trusted Guest Memory Page Management
This abstract first appeared for US patent application 20250130958 titled 'Root-Trusted Guest Memory Page Management
Original Abstract Submitted
root-trusted guest memory page management is described. a root-trusted guest is loaded by a hardware platform and authenticated. the root-trusted guest is configured to manage memory operations of different guests via special privileges that permit the root-trusted guest to execute memory operations using a guest's private memory page. to do so, a guest page table includes a novel “t-bit” in each entry, which indicates whether the root-trusted guest or a different guest owns the associated memory page. each entry in the guest page table for the root-trusted guest additionally includes a “c-bit” that indicates whether the corresponding memory page is a protected page. combined c-bit and t-bit values for a page table entry dictate whether operations performed as part of handling a guest's memory request are offloaded from the hardware platform to the root-trusted guest.