Files
ipxe/src/config/settings.h
Michael Brown 356f6c1b64 [acpi] Expose ACPI tables via settings mechanism
Allow values to be read from ACPI tables using the syntax

  ${acpi/<signature>.<index>.0.<offset>.<length>}

where <signature> is the ACPI table signature as a 32-bit hexadecimal
number (e.g. 0x41504093 for the 'APIC' signature on the MADT), <index>
is the index into the array of tables matching this signature,
<offset> is the byte offset within the table, and <length> is the
field length in bytes.

Numeric values are returned in reverse byte order, since ACPI numeric
values are usually little-endian.

For example:

  ${acpi/0x41504943.0.0.0.0}           - entire MADT table in raw hex
  ${acpi/0x41504943.0.0.0x0a.6:string} - MADT table OEM ID
  ${acpi/0x41504943.0.0.0x24.4:uint32} - local APIC address

Signed-off-by: Michael Brown <mcb30@ipxe.org>
2017-05-23 18:48:06 +01:00

25 lines
618 B
C

#ifndef CONFIG_SETTINGS_H
#define CONFIG_SETTINGS_H
/** @file
*
* Configuration settings sources
*
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#define PCI_SETTINGS /* PCI device settings */
//#define CPUID_SETTINGS /* CPUID settings */
//#define MEMMAP_SETTINGS /* Memory map settings */
//#define VMWARE_SETTINGS /* VMware GuestInfo settings */
//#define VRAM_SETTINGS /* Video RAM dump settings */
//#define ACPI_SETTINGS /* ACPI settings */
#include <config/named.h>
#include NAMED_CONFIG(settings.h)
#include <config/local/settings.h>
#include LOCAL_NAMED_CONFIG(settings.h)
#endif /* CONFIG_SETTINGS_H */