Invention Grant
- Patent Title: Using hypervisor trapping for protection against interrupts in virtual machine functions
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Application No.: US15875112Application Date: 2018-01-19
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Publication No.: US10248451B2Publication Date: 2019-04-02
- Inventor: Michael Tsirkin , Paolo Bonzini
- Applicant: Red Hat Israel, Ltd.
- Applicant Address: IL Ra'anana
- Assignee: Red Hat Israel, Ltd.
- Current Assignee: Red Hat Israel, Ltd.
- Current Assignee Address: IL Ra'anana
- Agency: K&L Gates LLP
- Main IPC: G06F9/46
- IPC: G06F9/46 ; G06F9/455 ; G06F9/48

Abstract:
A system, methods, and apparatus for using hypervisor trapping for protection against interrupts in virtual machine functions are disclosed. A system includes memory, one or more physical processors, a virtual machine executing on the one or more physical processors, and a hypervisor executing on the one or more physical processors. The hypervisor reads an interrupt data structure on the virtual machine. The hypervisor determines whether the interrupt data structure points to an alternate page view. Responsive to determining that the interrupt data structure points to an alternate page view, the hypervisor disables a virtual machine function.
Public/Granted literature
- US20180143848A1 USING HYPERVISOR TRAPPING FOR PROTECTION AGAINST INTERRUPTS IN VIRTUAL MACHINE FUNCTIONS Public/Granted day:2018-05-24
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