Formal requirements for virtualizable third generation architectures
Communications of the ACM
Virtualizing I/O Devices on VMware Workstation's Hosted Virtual Machine Monitor
Proceedings of the General Track: 2002 USENIX Annual Technical Conference
Diagnosing performance overheads in the xen virtual machine environment
Proceedings of the 1st ACM/USENIX international conference on Virtual execution environments
High performance and scalable I/O virtualization via self-virtualized devices
Proceedings of the 16th international symposium on High performance distributed computing
Concurrent Direct Network Access for Virtual Machine Monitors
HPCA '07 Proceedings of the 2007 IEEE 13th International Symposium on High Performance Computer Architecture
Implementing Embedded Security on Dual-Virtual-CPU Systems
IEEE Design & Test
Protection strategies for direct access to virtualized I/O devices
ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
Bridging the gap between software and hardware techniques for I/O virtualization
ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
The definitive guide to the xen hypervisor
The definitive guide to the xen hypervisor
The role of virtualization in embedded systems
Proceedings of the 1st workshop on Isolation and integration in embedded systems
Investigating virtual passthrough I/O on commodity devices
ACM SIGOPS Operating Systems Review
Live migration of direct-access devices
ACM SIGOPS Operating Systems Review
A practical look at micro-kernels and virtual machine monitors
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
Redesigning xen's memory sharing mechanism for safe and efficient I/O virtualization
WIOV'10 Proceedings of the 2nd conference on I/O virtualization
A network interface card architecture for I/O virtualization in embedded systems
WIOV'10 Proceedings of the 2nd conference on I/O virtualization
VAMOS: virtualization aware middleware
WIOV'11 Proceedings of the 3rd conference on I/O virtualization
ELI: bare-metal performance for I/O virtualization
ASPLOS XVII Proceedings of the seventeenth international conference on Architectural Support for Programming Languages and Operating Systems
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Dual-OS virtualization techniques allow consolidating a trus-ted real-time operating system (RTOS) and an untrusted general-purpose operating system (GPOS) onto the same embedded platform. In order to protect the reliability and real-time performance of the RTOS, platform devices are usually duplicated and assigned exclusively to each operating system causing an increase in the total hardware cost. This paper investigates and compares several mechanisms for sharing devices reliably in a dual-OS system. In particular, we observe that device sharing mechanisms currently used for cloud virtualization are not necessarily appropriate for dual-OS systems. We propose two new mechanisms based on the dynamic re-partition of devices; and evaluate them on a physical platform to show the advantages and drawbacks of each approach.