GuestRegionUffdMapping

vmm::persist

Struct GuestRegionUffdMapping 

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pub struct GuestRegionUffdMapping {
    pub base_host_virt_addr: u64,
    pub size: usize,
    pub offset: u64,
    pub page_size: usize,
    pub page_size_kib: usize,
}
Expand description

This describes the mapping between Firecracker base virtual address and offset in the buffer or file backend for a guest memory region. It is used to tell an external process/thread where to populate the guest memory data for this range.

E.g. Guest memory contents for a region of size bytes can be found in the backend at offset bytes from the beginning, and should be copied/populated into base_host_address.

Fields§

§base_host_virt_addr: u64

Base host virtual address where the guest memory contents for this region should be copied/populated.

§size: usize

Region size.

§offset: u64

Offset in the backend file/buffer where the region contents are.

§page_size: usize

The configured page size for this memory region.

§page_size_kib: usize
👎Deprecated

The configured page size in bytes for this memory region. The name is wrong but cannot be changed due to being API, so this field is deprecated, to be removed in 2.0.

Trait Implementations§

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impl Clone for GuestRegionUffdMapping

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fn clone(&self) -> GuestRegionUffdMapping

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for GuestRegionUffdMapping

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for GuestRegionUffdMapping

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq for GuestRegionUffdMapping

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fn eq(&self, other: &GuestRegionUffdMapping) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for GuestRegionUffdMapping

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Eq for GuestRegionUffdMapping

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impl StructuralPartialEq for GuestRegionUffdMapping

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