VIRTUALIZATION-BASED PLATFORM PROTECTION TECHNOLOGY

A data processing system (DPS) uses platform protection technology (PPT) to protect some or all of the code and data belonging to certain software modules. The PPT may include a virtual machine monitor (VMM) to enable an untrusted application and a trusted application to run on top of a single opera...

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Bibliographische Detailangaben
Hauptverfasser:	SINGH, Surendra K, NAYAK, Jyothi, PINTO, Royston A, SAHITA, Ravi L, THAKKAR, Vivek, BAKSHI, Aman, BANGINWAR, Rajesh P, KAMMA, Vasudevarao, NAROPANTH, Sumanth, MOHAN, Arvind, MALHOTRA, Rahil, NOTALAPATI PRABHAKARA, Sunil K
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A data processing system (DPS) uses platform protection technology (PPT) to protect some or all of the code and data belonging to certain software modules. The PPT may include a virtual machine monitor (VMM) to enable an untrusted application and a trusted application to run on top of a single operating system (OS), while preventing the untrusted application from accessing memory used by the trusted application. The VMM may use a first extended page table (EPT) to translate a guest physical address (GPA) into a first host physical address (HPA) for the untrusted application. The VMM may use a second EPT to translate the GPA into a second HPA for the trusted application. The first and second EPTs may map the same GPA to different HPAs. Other embodiments are described and claimed.