SHARING SECURE MEMORY ACROSS MULTIPLE SECURITY DOMAINS

According to one or more embodiments of the present invention, a computer implemented method includes receiving a secure access request for a secure page of memory at a secure interface control of a computer system. The secure interface control can check a disable virtual address compare state assoc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BRADBURY, Jonathan, HELLER, Lisa, Cranton, BUSABA, Fadi
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:According to one or more embodiments of the present invention, a computer implemented method includes receiving a secure access request for a secure page of memory at a secure interface control of a computer system. The secure interface control can check a disable virtual address compare state associated with the secure page. The secure interface control can disable a virtual address check in accessing the secure page to support mapping of a plurality of virtual addresses to a same absolute address to the secure page based on the disable virtual address compare state being set and/or to support secure pages that are accessed using an absolute address and do not have an associated virtual address.