Abstract: A method is provided to migrate a virtual machine from a source computing machine to a destination computing machine comprising: suspending transmission of requests from a request queue disposed in source computing machine memory associated with the VM from the request queue to a VF; while suspending the transmission of requests, determining when no more outstanding responses to prior requests remain to be received; in response to a determination that no more outstanding responses to prior requests remain to be received, transferring state information that is indicative of locations of requests inserted to the request queue from the VF to a PF and from the PF to a memory region associated with a virtualization intermediary of the source computing machine.

Abstract: A method is provided to migrate a virtual machine from a source computing machine to a destination computing machine comprising: suspending transmission of requests from a request queue disposed in source computing machine memory associated with the VM from the request queue to a VF; while suspending the transmission of requests, determining when no more outstanding responses to prior requests remain to be received; in response to a determination that no more outstanding responses to prior requests remain to be received, transferring state information that is indicative of locations of requests inserted to the request queue from the VF to a PF and from the PF to a memory region associated with a virtualization intermediary of the source computing machine.

Abstract: A method is provided to migrate a virtual machine from a source computing machine to a destination computing machine comprising: suspending transmission of requests from a request queue disposed in source computing machine memory associated with the VM from the request queue to a VF; while suspending the transmission of requests, determining when no more outstanding responses to prior requests remain to be received; in response to a determination that no more outstanding responses to prior requests remain to be received, transferring state information that is indicative of locations of requests inserted to the request queue from the VF to a PF and from the PF to a memory region associated with a virtualization intermediary of the source computing machine.

Abstract: In one or more embodiments of the invention, migration of a virtual machine includes identifying a hardware resource which is accessed directly by a device driver of the virtual machine and generating an emulation of the hardware resource to simulate the hardware resource as experiencing an error. The current state of the virtual machine can then be transmitted to the destination host computer, wherein the current state includes the emulation which simulates the hardware resource as experiencing an error. In at least one embodiment, generating the emulation includes defining the error as one that triggers a reset of the hardware resource after migration of the virtual machine from the source host computer to the destination host computer.

Abstract: In one or more embodiments of the invention, migration of a virtual machine includes identifying a hardware resource which is accessed directly by a device driver of the virtual machine and generating an emulation of the hardware resource to simulate the hardware resource as experiencing an error. The current state of the virtual machine can then be transmitted to the destination host computer, wherein the current state includes the emulation which simulates the hardware resource as experiencing an error. In at least one embodiment, generating the emulation includes defining the error as one that triggers a reset of the hardware resource after migration of the virtual machine from the source host computer to the destination host computer.

Abstract: Virtual machines that utilize pass-through devices are migrated from a source host computer to a destination host computer. During preparation for migration, the pass-through device is substituted with an emulation handler that simulates the pass-through device experiencing errors. Upon successful migration, an error reporting signal is triggered to cause the device driver in the virtual machine to initiate a reset of the pass-through device at the destination host computer, upon which the pass-through device is mapped to the migrated virtual machine.

Abstract: A method is provided to migrate a virtual machine from a source computing machine to a destination computing machine comprising: suspending transmission of requests from a request queue disposed in source computing machine memory associated with the VM from the request queue to a VF; while suspending the transmission of requests, determining when no more outstanding responses to prior requests remain to be received; in response to a determination that no more outstanding responses to prior requests remain to be received, transferring state information that is indicative of locations of requests inserted to the request queue from the VF to a PF and from the PF to a memory region associated with a virtualization intermediary of the source computing machine.

Abstract: Virtual machines that utilize pass-through devices are migrated from a source host computer to a destination host computer. During preparation for migration, the pass-through device is substituted with an emulation handler that simulates the pass-through device experiencing errors. Upon successful migration, an error reporting signal is triggered to cause the device driver in the virtual machine to initiate a reset of the pass-through device at the destination host computer, upon which the pass-through device is mapped to the migrated virtual machine.