Struct ApicBase

pub struct ApicBase;

IA32_APIC_BASE: status and location of the local APIC

IA32_APIC_BASE must be supported on the CPU, otherwise, a general protection exception will occur. Support can be detected using the cpuid instruction.

Implementations

impl ApicBase

pub fn read() -> (PhysFrame, ApicBaseFlags)

Reads the IA32_APIC_BASE MSR.

pub fn read_raw() -> (PhysFrame, u64)

Reads the raw IA32_APIC_BASE MSR.

pub unsafe fn write(frame: PhysFrame, flags: ApicBaseFlags)

Writes the IA32_APIC_BASE MSR preserving reserved values.

Preserves the value of reserved fields.

Safety

Unsafe because changing the APIC base address allows hijacking a page of physical memory space in ways that would violate Rust’s memory rules.

pub unsafe fn write_raw(frame: PhysFrame, flags: u64)

Writes the IA32_APIC_BASE MSR flags.

Does not preserve any bits, including reserved fields.

Safety

Unsafe because it’s possible to set reserved bits to 1 and changing the APIC base address allows hijacking a page of physical memory space in ways that would violate Rust’s memory rules.

impl ApicBase

pub const MSR: Msr

The underlying model specific register.

Trait Implementations

impl Debug for ApicBase

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

Formats the value using the given formatter.