1. In a virtual computing environment, a method of accelerating a switch between isolated virtual contexts that are executing on a same virtual machine by causing the switch to occur without generating an intercept into a hypervisor, the method comprising: identifying a physical computer system that is executing a virtual machine and that includes a hypervisor, wherein the virtual machine includes a virtual processor that has associated therewith a plurality of virtual machine contexts, each virtual machine context included within the plurality being extended to include a corresponding control bit that is usable by the virtual processor to determine whether the virtual machine is to independently switch virtual machine contexts, whereby, when the virtual machine is configured to independently switch virtual machine contexts, the virtual machine switches virtual machine contexts without generating an intercept into the hypervisor; maintaining a transfer list for each of the multiple virtual machine contexts such that each virtual machine context has associated therewith a corresponding transfer list, each transfer list designating which, if any, other virtual machine contexts each associated virtual machine context is permitted to switch to during a later switch event; determining that the virtual processor of the virtual machine should switch from a first virtual machine context to a second virtual machine context, wherein the first and second virtual machine contexts are isolated from each other, wherein an indication of the second virtual machine context is included within a transfer list of the first virtual machine context such that the virtual processor, while executing using the first virtual machine context, is permitted to switch to the second virtual machine context; analyzing a control bit of the first or second virtual machine context to determine whether the virtual machine is configured to independently switch virtual machine contexts; and after determining that the first or second virtual machine context's control bit indicates that the virtual machine is configured to independently switch virtual machine contexts, receiving an instruction indicating that the virtual processor is to independently switch from using the first virtual machine context to using the second virtual machine context; and performing the virtual context switch (1) by executing functions native to a physical processor associated with the virtual machine and (2) by independently switching from the first virtual machine context to the second virtual machine context on the same virtual machine.