Struct AcpiInfo 

pub struct AcpiInfo {

    pub oem_id: [u8; 6],
    pub local_apic_address: u32,
    pub madt_flags: u32,
    pub local_apics: [Option<MadtLocalApic>; 16],
    pub local_apic_count: usize,
    pub io_apics: [Option<MadtIoApic>; 4],
    pub io_apic_count: usize,
    pub isos: [Option<MadtIso>; 24],
    pub iso_count: usize,
    pub mcfg_entries: [Option<McfgEntry>; 4],
    pub mcfg_count: usize,
    pub has_madt: bool,
    pub has_mcfg: bool,
    pub has_dmar: bool,
    pub dmar_address: u64,
    pub dmar_length: u32,
    pub revision: u8,
    pub has_srat: bool,
    pub srat_address: u64,
    pub srat_length: u32,
    pub has_slit: bool,
    pub slit_address: u64,
    pub slit_length: u32,
}

Parsed ACPI information, populated by init().

Fields

oem_id: [u8; 6]

OEM ID from the RSDT/XSDT (6-byte ASCII, null-padded).

local_apic_address: u32

Local APIC base address from the MADT.

madt_flags: u32

MADT flags (bit 0: dual 8259 PIC present).

local_apics: [Option<MadtLocalApic>; 16]

Local APIC entries (one per CPU).

local_apic_count: usize

Number of valid local APIC entries.

io_apics: [Option<MadtIoApic>; 4]

I/O APIC entries.

io_apic_count: usize

Number of valid I/O APIC entries.

isos: [Option<MadtIso>; 24]

Interrupt Source Override entries.

iso_count: usize

Number of valid ISO entries.

mcfg_entries: [Option<McfgEntry>; 4]

PCIe MCFG entries.

mcfg_count: usize

Number of valid MCFG entries.

has_madt: bool

Whether MADT was found and parsed.

has_mcfg: bool

Whether MCFG was found and parsed.

has_dmar: bool

Whether DMAR (DMA Remapping) table was found.

dmar_address: u64

Physical address of the DMAR table (for IOMMU driver to parse).

dmar_length: u32

Length of the DMAR table in bytes.

revision: u8

ACPI revision (0 = ACPI 1.0, 2 = ACPI 2.0+).

has_srat: bool

Whether SRAT (System Resource Affinity Table) was found.

srat_address: u64

Virtual address of the SRAT table.

srat_length: u32

Length of the SRAT table in bytes.

has_slit: bool

Whether SLIT (System Locality Information Table) was found.

slit_address: u64

Virtual address of the SLIT table.

slit_length: u32

Length of the SLIT table in bytes.

Implementations

impl AcpiInfo

pub fn io_apic_address(&self) -> u32

Get the I/O APIC address (first one, or default 0xFEC0_0000).

pub fn irq_to_gsi(&self, irq: u8) -> (u32, bool, bool)

Look up the GSI for a given ISA IRQ, applying interrupt source overrides.

pub fn cpu_count(&self) -> usize

Count usable CPUs.

Trait Implementations

impl Debug for AcpiInfo

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

Formats the value using the given formatter.