Enum ResourceConstraint 

pub enum ResourceConstraint {
    PioAddress {
        range: Option<(u16, u16)>,
        align: u16,
        size: u16,
    },
    MmioAddress {
        range: Option<(u64, u64)>,
        align: u64,
        size: u64,
    },
    LegacyIrq {
        irq: Option<u32>,
    },
    PciMsiIrq {
        size: u32,
    },
    PciMsixIrq {
        size: u32,
    },
    GenericIrq {
        size: u32,
    },
    KvmMemSlot {
        slot: Option<u32>,
        size: u32,
    },
}

Enumeration describing a device’s resource constraints.

Variants

PioAddress

Constraint for an IO Port address range.

Fields

range: Option<(u16, u16)>

Allocating resource within the range [min, max] if specified.

align: u16

Alignment for the allocated address.

size: u16

Size for the allocated address range.

MmioAddress

Constraint for a Memory Mapped IO address range.

Fields

range: Option<(u64, u64)>

Allocating resource within the range [min, max] if specified.

align: u64

Alignment for the allocated address.

size: u64

Size for the allocated address range.

LegacyIrq

Constraint for a legacy IRQ.

Fields

irq: Option<u32>

Reserving the pre-allocated IRQ if it’s specified.

PciMsiIrq

Constraint for PCI MSI IRQs.

Fields

size: u32

Number of Irqs to allocate.

PciMsixIrq

Constraint for PCI MSIx IRQs.

Fields

size: u32

Number of Irqs to allocate.

GenericIrq

Constraint for generic IRQs.

Fields

size: u32

Number of Irqs to allocate.

KvmMemSlot

Constraint for KVM mem_slot indexes to map memory into the guest.

Fields

slot: Option<u32>

Allocating kvm memory slots starting from the index slot if specified.

size: u32

Number of slots to allocate.

Implementations

impl ResourceConstraint

pub fn new_pio(size: u16) -> Self

Create a new PIO address constraint object with default configuration.

pub fn pio_with_constraints( size: u16, range: Option<(u16, u16)>, align: u16, ) -> Self

Create a new PIO address constraint object.

pub fn new_mmio(size: u64) -> Self

Create a new MMIO address constraint object with default configuration.

pub fn mmio_with_constraints( size: u64, range: Option<(u64, u64)>, align: u64, ) -> Self

Create a new MMIO address constraint object.

pub fn new_legacy_irq(irq: Option<u32>) -> Self

Create a new legacy IRQ constraint object.

Allocating the pre-allocated legacy Irq irq if specified.

pub fn new_kvm_mem_slot(size: u32, slot: Option<u32>) -> Self

Create a new KVM memory slot constraint object.

Allocating kvm memory slots starting from the index slot if specified.