CONFIG_IVSHMEM_MSI_X_VECTORS

How many notification vectors should be pre-allocated?

Type: int

Help

MSI-X vector holders must be pre-allocated. One can pre-allocate
more or less than necessary. Depends on how many VMs will connect
with each other. These are know to be the notification vectors in
ivshmem.

Direct dependencies

IVSHMEM_DOORBELL && IVSHMEM && VIRTUALIZATION

(Includes any dependencies from ifs and menus.)

Default

• 2

Kconfig definition

At <Zephyr>/drivers/virtualization/Kconfig:40

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:42 → <Zephyr>/drivers/Kconfig:108

Menu path: (Top) → Device Drivers → Virtualization guests drivers → Inter-VM shared memory device (ivshmem) → Support interrupt based ivshmem (doorbell version)

config IVSHMEM_MSI_X_VECTORS
    int "How many notification vectors should be pre-allocated?"
    default 2
    depends on IVSHMEM_DOORBELL && IVSHMEM && VIRTUALIZATION
    help
      MSI-X vector holders must be pre-allocated. One can pre-allocate
      more or less than necessary. Depends on how many VMs will connect
      with each other. These are know to be the notification vectors in
      ivshmem.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)