Tables

System Description Tables. More...

Collaboration diagram for Tables:

Detailed Description

System Description Tables.

This module defines the ACPI tables found in the ACPI specification, tables defined outside of the specification, for example, MCFG is defined in their own files.

Data Structures
struct	fadt_gas_t
	FADT generic Address. More...
struct	fadt_t
	Fixed ACPI Description Table. More...
struct	interrupt_controller_header_t
struct	processor_local_apic_t
	Processor Local APIC. More...
struct	ioapic_t
	IO APIC. More...
struct	madt_t
	Multiple APIC Description Table. More...
struct	dsdt_t
	Differentiated System Description Table. More...
struct	ssdt_t
	Secondary System Description Table. More...
struct	acpi_cached_table_t
	Cached ACPI table. More...
struct	madt_interrupt_controller_header_t
	MADT Interrupt Controller Header. More...

Macros
#define	FADT_SIGNATURE   "FACP"
	FADT table signature.
#define	MADT_FLAG_PCAT_COMPAT   ((madt_flags_t)(1 << 0))
#define	INTERRUPT_CONTROLLER_PROCESSOR_LOCAL_APIC   ((interrupt_controller_type_t)0)
#define	INTERRUPT_CONTROLLER_IO_APIC   ((interrupt_controller_type_t)1)
#define	PROCESSOR_LOCAL_APIC_ENABLED   (1 << 0)
#define	PROCESSOR_LOCAL_APIC_ONLINE_CAPABLE   (1 << 1)
#define	MADT_FOR_EACH(madt, ic)
	Iterate over all MADT interrupt controllers.
#define	MADT_SIGNATURE   "APIC"
	MADT table signature.
#define	DSDT_SIGNATURE   "DSDT"
	DSDT table signature.
#define	SSDT_SIGNATURE   "SSDT"
	SSDT table signature.

Typedefs
typedef uint32_t	madt_flags_t
	Multiple APIC Description Table flags.
typedef uint8_t	interrupt_controller_type_t
	MADT Interrupt Controller Types.
typedef uint32_t	processor_local_apic_flags_t
	MADT Processor Local APIC flags.

Enumerations
enum	fadt_boot_arch_flags_t { FADT_BOOT_ARCH_PS2_EXISTS = (1 << 1) }
	Enum for the fadt_t::bootArchFlags field. More...

Functions
uint64_t	acpi_tables_init (rsdp_t *rsdp)
	Initialize ACPI tables and call their init handlers.
uint64_t	acpi_tables_expose (void)
	Expose ACPI tables to sysfs.
sdt_header_t *	acpi_tables_lookup (const char *signature, uint64_t minSize, uint64_t n)
	Lookup the n'th table matching the signature.

Macro Definition Documentation

FADT_SIGNATURE

#define FADT_SIGNATURE   "FACP"

FADT table signature.

Definition at line 103 of file tables.h.

MADT_FLAG_PCAT_COMPAT

#define MADT_FLAG_PCAT_COMPAT   ((madt_flags_t)(1 << 0))

Definition at line 112 of file tables.h.

INTERRUPT_CONTROLLER_PROCESSOR_LOCAL_APIC

#define INTERRUPT_CONTROLLER_PROCESSOR_LOCAL_APIC   ((interrupt_controller_type_t)0)

Definition at line 121 of file tables.h.

INTERRUPT_CONTROLLER_IO_APIC

#define INTERRUPT_CONTROLLER_IO_APIC   ((interrupt_controller_type_t)1)

Definition at line 122 of file tables.h.

PROCESSOR_LOCAL_APIC_ENABLED

#define PROCESSOR_LOCAL_APIC_ENABLED   (1 << 0)

Definition at line 141 of file tables.h.

PROCESSOR_LOCAL_APIC_ONLINE_CAPABLE

#define PROCESSOR_LOCAL_APIC_ONLINE_CAPABLE   (1 << 1)

Definition at line 142 of file tables.h.

MADT_FOR_EACH

#define MADT_FOR_EACH	(		madt,
			ic
	)

Value:

    for (ic = (typeof(ic))madt->interruptControllers; (uint8_t*)ic < (uint8_t*)madt + madt->header.length && \
        (uint8_t*)ic + sizeof(interrupt_controller_header_t) <= (uint8_t*)madt + madt->header.length && \
        (uint8_t*)ic + ic->header.length <= (uint8_t*)madt + madt->header.length; \
        ic = (typeof(ic))((uint8_t*)ic + ic->header.length))

Iterate over all MADT interrupt controllers.

Parameters

madt	The MADT table to iterate over.
ic	A pointer to a madt_interrupt_controller_header_t* that will be set to the current interrupt controller.

Definition at line 193 of file tables.h.

MADT_SIGNATURE

#define MADT_SIGNATURE   "APIC"

MADT table signature.

Definition at line 202 of file tables.h.

DSDT_SIGNATURE

#define DSDT_SIGNATURE   "DSDT"

DSDT table signature.

Definition at line 219 of file tables.h.

SSDT_SIGNATURE

#define SSDT_SIGNATURE   "SSDT"

SSDT table signature.

Note that there might be multiple SSDT tables.

Definition at line 238 of file tables.h.

Typedef Documentation

madt_flags_t

typedef uint32_t madt_flags_t

Multiple APIC Description Table flags.

See also

Section 5.2.12 table 5.20 of the ACPI specification for more details.

Definition at line 110 of file tables.h.

interrupt_controller_type_t

typedef uint8_t interrupt_controller_type_t

MADT Interrupt Controller Types.

See also

Section 5.2.12 table 5.21 of the ACPI specification for more details.

Definition at line 119 of file tables.h.

processor_local_apic_flags_t

typedef uint32_t processor_local_apic_flags_t

MADT Processor Local APIC flags.

See also

Section 5.2.12.2 table 5.23 of the ACPI specification for more details.

Definition at line 139 of file tables.h.

Enumeration Type Documentation

fadt_boot_arch_flags_t

enum fadt_boot_arch_flags_t

Enum for the fadt_t::bootArchFlags field.

Enumerator
FADT_BOOT_ARCH_PS2_EXISTS

Definition at line 19 of file tables.h.

Function Documentation

acpi_tables_init()

uint64_t acpi_tables_init

(

rsdp_t *

rsdp

)

Initialize ACPI tables and call their init handlers.

Parameters

rsdp	Pointer to the RSDP structure.

Returns

On success, 0. On failure, ERR.

Definition at line 195 of file tables.c.

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acpi_tables_expose()

uint64_t acpi_tables_expose

(

void

)

Expose ACPI tables to sysfs.

Returns

On success, 0. On failure, ERR.

Definition at line 221 of file tables.c.

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acpi_tables_lookup()

sdt_header_t * acpi_tables_lookup	(	const char *	signature,
		uint64_t	minSize,
		uint64_t	n
	)

Lookup the n'th table matching the signature.

Parameters

signature	The signature of the table to look up.
minSize	The minimum size of the table to look up, should usually be sizeof() of the table struct.
n	The index of the table to look up (0 indexed).

Returns

On success, a pointer to the table. On error, NULL and errno is set to:

• EINVAL: Invalid parameters.
• ENOENT: No table matching the signature was found.
• ERANGE: A table was found, but not enough matching tables to satisfy n.
• EILSEQ: The table found was smaller than minSize.

Definition at line 260 of file tables.c.

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