A processor includes cores and instructions executable by at least one of the plurality of cores as a virtual machine monitor (VMM). To configure resources for a virtual machine (VM), the VMM is to: group the cores into cluster(s), where a subset of the cores is to execute the VM; create, within a buffer in memory, a data structure to store, for the subset, one or more entries, each entry including a cluster identifier and a bitmap. The bitmap identifies cores of the subset within a cluster corresponding to the cluster identifier. The VMM is further to write, to a virtual machine control structure (VMCS): a pointer to the data structure, wherein the pointer includes a physical address of the memory; and a number of the one or more entries in the data structure; and set, within the VMCS, a local interrupt controller pass-through field.
Virtual Usb Multikey 64 Bit Driv
1. A processor comprising: a plurality of cores, wherein at least one of the plurality of cores is to execute a virtual machine monitor (VMM), and wherein to configure resources for a virtual machine (VM), the VMM is to: group the plurality of cores into one or more clusters, wherein a subset of the plurality of cores is to execute the VM; create, within a buffer in memory, a data structure to store, for the subset of the plurality of cores, one or more entries, each entry of the one or more entries comprising a cluster identifier and a bitmap, wherein the bitmap identifies cores of the subset within a cluster corresponding to the cluster identifier; write, to a virtual machine control structure of the memory: a pointer to the data structure, wherein the pointer comprises a physical address of the memory; and a number of the one or more entries in the data structure; and set, within the virtual machine control structure, a local interrupt controller pass-through field.
4. The processor of claim 2, further comprising a programmable interrupt controller to: determine that the local interrupt controller pass-through field is set for the VM; determine that the pointer and the number of the one or more entries of the virtual machine control structure are non-zero; and send the IPI onto a system bus that couples the plurality of cores in response to verification, with use of the ICR, that the IPI is destined for one of the subset of the plurality of cores.
9. A method comprising: grouping, by a virtual machine monitor (VMM) executing on at least one core of a plurality of cores, the plurality of cores into one or more clusters, wherein a subset of the plurality of cores is to execute a virtual machine (VM); creating, by the VMM within a buffer in memory, a data structure to store, for the subset of the plurality of cores, one or more entries, each entry of the one or more entries comprising a cluster identifier and a bitmap, wherein the bitmap identifies cores of the subset within a cluster corresponding to the cluster identifier; writing, by the VMIM, to a virtual machine control structure of the memory: a pointer to the data structure, wherein the pointer comprises a physical address of the memory; and a number of the one or more entries in the data structure; and setting, by the VMM within the virtual machine control structure, a local interrupt controller pass-through field.
12. The method of claim 10, further comprising: determining that the local interrupt controller pass-through field is set for the VM; determining that the pointer and the number of the one or more entries of the virtual machine control structure are non-zero; and sending the IPI onto a system bus that couples the plurality of cores in response to verification, with use of the ICR, that the IPI is destined for one of the subset of the plurality of cores.
20. The system of claim 18, further comprising a programmable interrupt controller to: determine that the local interrupt controller pass-through field is set for the VM; determine that the pointer and the number of the one or more entries of the virtual machine control structure are non-zero; and send the IPI onto a system bus that couples the plurality of cores in response to verification, with use of the ICR, that the IPI is destined for one of the subset of the plurality of cores.
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