|
Dear all: In
a Linux system, the access of a hardware device is to open and close its device
node. However, using device virtualization, the physical device can be shared
with one more guest OSes. Does the device node of the shared physical device still
need to be opened and closed turn by turn for being accessed by the guest OSes?
Does it mean that the device sharing mechanism is performed in the user space
and not kernel space? What are performed in the kernel space if KVM is used? How
about Xen, QEMU, and VMWare, or other device virtualization techniques? I’m
a beginner for virtualization, and hope that someone can answer to my questions
Thanks very much! Sincerely, Huang. |
_______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
