Managing inter-processor interrupts in virtualized computer systems

A system comprising:

• a memory;
• and
• a processing device communicably coupled to the memory, the processing device to:
• allocate, by a hypervisor running on a host computer system, a memory page in a memory of an input/output (I/O) device;
• map, by the hypervisor, the memory page into a memory space of a virtual machine associated with a first virtual processor;
• create a first entry in an interrupt mapping table in the memory of the I/O device, wherein the first entry includes a memory address that is associated with a second virtual processor identifier and further includes an interrupt vector identifier;
• and
• create a second entry in an interrupt injection table of an interrupt injection unit of the host computer system, wherein the second entry is associated with a memory address that corresponds to a second virtual processor, the second entry includes the interrupt vector identifier, and the second entry is further associated with the second virtual processor identifier.

A non-transitory machine-readable storage medium storing instructions that cause a processing device to:

• allocate, by a hypervisor running on a host computer system, a memory page in a memory of an input/output (I/O) device;
• map, by the hypervisor, the memory page into a memory space of a virtual machine associated with a first virtual processor;
• create a first entry in an interrupt mapping table in the memory of the I/O device, wherein the first entry includes a memory address that is associated with a second virtual processor identifier and further includes an interrupt vector identifier;
• and
• create a second entry in an interrupt injection table of an interrupt injection unit of the host computer system, wherein the second entry is associated with a memory address that corresponds to a second virtual processor, the second entry includes the interrupt vector identifier, and the second entry is further associated with the second virtual processor identifier.