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USENIX
2008
13 years 6 months ago
Protection Strategies for Direct Access to Virtualized I/O Devices
Commodity virtual machine monitors forbid direct access to I/O devices by untrusted guest operating systems in order to provide protection and sharing. However, both I/O memory ma...
Paul Willmann, Scott Rixner, Alan L. Cox
SYSTOR
2010
ACM
13 years 9 months ago
On the DMA mapping problem in direct device assignment
I/O intensive workloads running in virtual machines can suffer massive performance degradation. Direct assignment of I/O devices to virtual machines is the best performing I/O vir...
Ben-Ami Yassour, Muli Ben-Yehuda, Orit Wasserman
TEI
2012
ACM
331views Hardware» more  TEI 2012»
12 years 2 days ago
Body-centric interaction with mobile devices
Most current mobile technologies require on-screen operations for interacting with devices’ visual contents. However, as a trade-off for mobility, screens usually provide limite...
Xiang 'Anthony' Chen
IEEEARES
2007
IEEE
13 years 10 months ago
Formalising Dynamic Trust Negotiations in Decentralised Collaborative e-Health Systems
Access control in decentralised collaborative systems present huge challenges especially where many autonomous entities including organisations, humans, software agents from diff...
Oluwafemi Ajayi, Richard O. Sinnott, Anthony Stell