Invention Grant
- Patent Title: Hypervisor backdoor interface
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Application No.: US15184455Application Date: 2016-06-16
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Publication No.: US10067784B2Publication Date: 2018-09-04
- Inventor: Andrei Warkentin , Harvey Tuch , Cyprien Laplace , Alexander Fainkichen
- Applicant: VMware, Inc.
- Applicant Address: US CA Palo Alto
- Assignee: VMware, Inc.
- Current Assignee: VMware, Inc.
- Current Assignee Address: US CA Palo Alto
- Agency: Patterson + Sheridan, LLP
- Main IPC: G06F9/455
- IPC: G06F9/455 ; G06F9/38 ; G06F11/36 ; G06F13/24 ; G06F9/48

Abstract:
A method of providing a backdoor interface between software executing in a virtual machine and a hypervisor executing on a computing system that supports the virtual machine includes trapping, at the hypervisor, an exception generated in response to execution of a debug instruction on a central processing unit (CPU) by the software; identifying, by an exception handler of the hypervisor handling the exception, an equivalence between an immediate operand of the debug instruction and a predefined value; and invoking, in response to the equivalence, a backdoor service of the hypervisor using state of at least one register of the CPU as parametric input, the state being set by the software prior to executing the debug instruction.
Public/Granted literature
- US20170364379A1 HYPERVISOR BACKDOOR INTERFACE Public/Granted day:2017-12-21
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