Struct ControlPage

#[repr(C, align(4096))]
pub struct ControlPage {
    pub index: AtomicU32,
    pub base_cpu: AtomicU32,
    pub cpu_count: AtomicU32,
    pub request_vector: AtomicU32,
    pub response_cpu: AtomicU32,
    pub response_vector: AtomicU32,
    pub needs_attention: AtomicU32,
    pub reserved: [u8; 36],
    pub cpu_status: [AtomicU8; 4032],
}

The per-node control page, which is used to communicate between the sidecar kernel and the main kernel sidecar kernel driver.

Fields

index: AtomicU32

The node index.

base_cpu: AtomicU32

The base CPU of the node.

cpu_count: AtomicU32

The number of CPUs in the node.

request_vector: AtomicU32

The vector the driver should IPI to wake up a sidecar CPU.

response_cpu: AtomicU32

The APIC ID of the CPU that the sidecar CPU should IPI to wake up the driver.

response_vector: AtomicU32

The vector the sidecar CPU should IPI to wake up the driver.

needs_attention: AtomicU32

If non-zero, then a sidecar CPU has a message for the driver.

reserved: [u8; 36]

Reserved.

cpu_status: [AtomicU8; 4032]

The per-CPU status.