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US 10,884,782 B1Granted
Virtual machine exit processing accelerator
AssigneeParallels International GmbH
InventorsAndrey N. Naenko, Alexey B. Koryakin, Nikolay N. Dobrovolskiy, Serguei M. Beloussov
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Abstract
Systems and methods for implementing a virtual machine (VM) exit processing accelerator. An example method comprises: intercepting, by a VM exit processing accelerator, a VM exit associated with the virtual machine; responsive to determining that an identifier of a reason of the VM exit satisfies a first condition, processing the VM exit by the VM exit processing accelerator; and resuming execution of the virtual machine.
Claims18
A method, comprising:
- storing, in a memory location, a virtual machine (VM) exit handler address specified by a processor-specific data structure associated with a virtual machine;
- intercepting, by a VM exit processing accelerator, a VM exit associated with the virtual machine;
- responsive to determining that an identifier of a reason of the VM exit satisfies a first condition, processing the VM exit by the VM exit processing accelerator;
- and
- resuming execution of the virtual machine.
2 more elements
A system, comprising:
- a memory;
- and
- a processing device coupled to the memory, the processing device configured to:
- intercept, by a virtual machine (VM) exit processing accelerator, a VM exit associated with a virtual machine;
- responsive to determining that an identifier of a reason of the VM exit satisfies a first condition, process the VM exit by a thin hypervisor, wherein the thin hypervisor provides an interface between the virtual machine and a virtualization application running in a non-privileged execution mode;
- and
- resume execution of the virtual machine;
- wherein
- intercepting the VM exit further comprises storing, in a memory location, a VM exit handler address specified by a processor-specific data structure associated with the virtual machine.
6 more elements
A non-transitory computer-readable storage medium comprising executable instructions that, when executed by a processing device, cause the processing device to:
- store, in a memory location, a virtual machine (VM) exit handler address specified by a processor-specific data structure associated with a virtual machine;
- intercept, by a VM exit processing accelerator, a VM exit associated with the virtual machine;
- responsive to determining that an identifier of a reason of the VM exit satisfies a first condition, process the VM exit by the VM exit processing accelerator;
- and
- resume execution of the virtual machine.
2 more elements
A system, comprising:
- a memory;
- and
- a processing device coupled to the memory, the processing device configured to:
- intercept, by a virtual machine (VM) exit processing accelerator, a VM exit associated with a virtual machine;
- responsive to determining that an identifier of a reason of the VM exit satisfies a first condition, process the VM exit by a thin hypervisor, wherein the thin hypervisor provides an interface between the virtual machine and a virtualization application running in a non-privileged execution mode;
- and
- resume execution of the virtual machine;
- wherein
- the processing device is further configured to responsive to determining that the identifier of the reason of the VM exit satisfies a second condition, process the VM exit by the VM exit accelerator.
6 more elements
A system, comprising:
- a memory;
- and
- a processing device coupled to the memory, the processing device configured to:
- intercept, by a virtual machine (VM) exit processing accelerator, a VM exit associated with a virtual machine;
- responsive to determining that an identifier of a reason of the VM exit satisfies a first condition, process the VM exit by a thin hypervisor, wherein the thin hypervisor provides an interface between the virtual machine and a virtualization application running in a non-privileged execution mode;
- and
- resume execution of the virtual machine;
- wherein
- the processing device is further configured to install a second VM exit processing accelerator in a chained fashion;
- and
- installing the second VM exit processing accelerator comprises:
- storing, in a memory location, a VM exit handler address specified by the processor-specific data structure;
- and
- storing, in the processor-specific data structure, an address of the second VM exit processing accelerator.
11 more elements
A system, comprising:
- a memory;
- and
- a processing device coupled to the memory, the processing device configured to:
- intercept, by a virtual machine (VM) exit processing accelerator, a VM exit associated with a virtual machine;
- responsive to determining that an identifier of a reason of the VM exit satisfies a first condition, process the VM exit by a thin hypervisor, wherein the thin hypervisor provides an interface between the virtual machine and a virtualization application running in a non-privileged execution mode;
- and
- resume execution of the virtual machine;
- wherein
- intercepting the VM exit further comprises storing, in a memory location, a VM exit handler address specified by a processor-specific data structure associated with the virtual machine;
- and
- determining that the identifier of the reason of the VM exit satisfies the first condition further comprises reading the identifier from the processor-specific data structure.
8 more elements
Dependencies are inferred from the claim text.