Control over faults occurring during the operation of guest software in the virtual-machine architecture
First Claim
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1. A method comprising:
- receiving fault information relating to a fault associated with an operation of guest software, the fault information comprising at least one of a fault identifier, an error code associated with the fault, and one or more additional data values associated with the fault;
determining whether the fault information satisfies at least one filtering criterion;
refraining from transitioning control to a virtual machine monitor (VMM) if the fault information satisfies the at least one filtering criterion; and
transitioning control to the VMM if the fault information does not satisfy the at least one filtering criterion.
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Abstract
In one embodiment, fault information relating to a fault associated with the operation of guest software is received. Further, a determination is made as to whether the fault information satisfies one or more filtering criterion. If the determination is positive, control remains with the guest software and is not transferred to the virtual machine monitor (VMM).
260 Citations
22 Claims
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1. A method comprising:
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receiving fault information relating to a fault associated with an operation of guest software, the fault information comprising at least one of a fault identifier, an error code associated with the fault, and one or more additional data values associated with the fault; determining whether the fault information satisfies at least one filtering criterion; refraining from transitioning control to a virtual machine monitor (VMM) if the fault information satisfies the at least one filtering criterion; and transitioning control to the VMM if the fault information does not satisfy the at least one filtering criterion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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determining whether a fault associated with an operation of guest software requires a transition of control to a virtual machine monitor (VMM) using fault information relating to the fault and at least one control transfer filtering criterion, wherein the at least one control transfer filtering criterion is defined using data stored in one or more designated fields, the one or more designated fields comprising a match field and a mask field; and delivering the fault to the guest software if the fault information satisfies the at least one control transfer filtering criterion. - View Dependent Claims (10, 11, 12, 13, 14, 16)
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15. A system comprising:
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a memory having stored therein guest software; and a processor, coupled to the memory, to execute the guest software, to determine whether fault information relating to a fault associated with an operation of the guest software satisfies at least one filtering criterion, the fault information comprising at least one of a fault identifier, an error code associated with the fault, and one or more additional data values associated with the fault, to refrain from transitioning control to a virtual machine monitor (VMM) if the fault information satisfies the at least one filtering criterion, and to transition control to the VMM if the fault information does not satisfy the at least one filtering criterion.
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17. A system comprising:
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a memory having stored therein guest software; and a processor, coupled to the memory, to execute the guest software, to determine whether a fault associated with an operation of guest software requires a transition of control to a virtual machine monitor (VMM) using fault information relating to the fault and at least one control transfer filtering criterion, wherein the at least one control transfer filtering criterion is defined using data stored in one or more designated fields, the one or more designated fields comprising a match field and a mask field, and to deliver the fault to the guest software if the fault information satisfies the at least one control transfer filtering criterion. - View Dependent Claims (18)
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19. A machine-readable medium containing instructions which, when executed by a processing system, cause the processing system to perform a method, the method comprising:
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receiving fault information relating to a fault associated with an operation of guest software, the fault information comprising at least one of a fault identifier, an error code associated with the fault, and one or more additional data values associated with the fault; determining whether the fault information satisfies at least one filtering criterion; refraining from transitioning control to a virtual machine monitor (VMM) if the fault information satisfies the at least one filtering criterion; and transitioning control to the VMM if the fault information does not satisfy the at least one filtering criterion. - View Dependent Claims (20)
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21. A machine-readable medium containing instructions which, when executed by a processing system, cause the processing system to perform a method, the method comprising:
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determining whether a fault associated with an operation of guest software requires a transition of control to a virtual machine monitor (VMM) using fault information relating to the fault and at least one control transfer filtering criterion, wherein the at least one control transfer filtering criterion is defined using data stored in one or more designated fields, the one or more designated fields comprising a match field and a mask field; and delivering the fault to the guest software if the fault information satisfies the at least one control transfer filtering criterion. - View Dependent Claims (22)
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Specification