efi_smbios.c File Reference

iPXE SMBIOS API for EFI More...

#include <errno.h>
#include <ipxe/uaccess.h>
#include <ipxe/smbios.h>
#include <ipxe/efi/efi.h>
#include <ipxe/efi/Guid/SmBios.h>

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER)
	EFI_USE_TABLE (SMBIOS_TABLE, &smbios_entry, 0)
	EFI_USE_TABLE (SMBIOS3_TABLE, &smbios3_entry, 0)
static int	efi_find_smbios (struct smbios *smbios)
	Find SMBIOS. More...
	PROVIDE_SMBIOS (efi, find_smbios, efi_find_smbios)

Variables
static struct smbios_entry *	smbios_entry
	SMBIOS configuration table. More...
static struct smbios3_entry *	smbios3_entry
	SMBIOS configuration table. More...

Detailed Description

iPXE SMBIOS API for EFI

Definition in file efi_smbios.c.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER

)

EFI_USE_TABLE() [1/2]

EFI_USE_TABLE	(	SMBIOS_TABLE	,
		&	smbios_entry,
		0
	)

EFI_USE_TABLE() [2/2]

EFI_USE_TABLE	(	SMBIOS3_TABLE	,
		&	smbios3_entry,
		0
	)

efi_find_smbios()

static int efi_find_smbios ( struct smbios *  smbios )

static

Find SMBIOS.

Parameters

smbios

SMBIOS entry point descriptor structure to fill in

Return values

rc	Return status code

Definition at line 48 of file efi_smbios.c.

                                                     {

        /* Use 64-bit table if present */
        if ( smbios3_entry && ( smbios3_entry->signature == SMBIOS3_SIGNATURE ) ) {
                smbios->address = phys_to_virt ( smbios3_entry->smbios_address );
                smbios->len = smbios3_entry->smbios_len;
                smbios->count = 0;
                smbios->version =
                        SMBIOS_VERSION ( smbios3_entry->major, smbios3_entry->minor );
                DBG ( "Found 64-bit SMBIOS v%d.%d entry point at %p (%lx+%zx)\n",
                      smbios3_entry->major, smbios3_entry->minor, smbios3_entry,
                      virt_to_phys ( smbios->address ), smbios->len );
                return 0;
        }

        /* Otherwise, use 32-bit table if present */
        if ( smbios_entry && ( smbios_entry->signature == SMBIOS_SIGNATURE ) ) {
                smbios->address = phys_to_virt ( smbios_entry->smbios_address );
                smbios->len = smbios_entry->smbios_len;
                smbios->count = smbios_entry->smbios_count;
                smbios->version =
                        SMBIOS_VERSION ( smbios_entry->major, smbios_entry->minor );
                DBG ( "Found 32-bit SMBIOS v%d.%d entry point at %p (%lx+%zx)\n",
                      smbios_entry->major, smbios_entry->minor, smbios_entry,
                      virt_to_phys ( smbios->address ), smbios->len );
                return 0;
        }

        DBG ( "No SMBIOS table provided\n" );
        return -ENODEV;
}

References smbios::address, smbios::count, DBG, ENODEV, smbios::len, smbios_entry::major, smbios3_entry::major, smbios_entry::minor, smbios3_entry::minor, smbios_entry::signature, smbios3_entry::signature, SMBIOS3_SIGNATURE, smbios_entry::smbios_address, smbios3_entry::smbios_address, smbios_entry::smbios_count, smbios_entry::smbios_len, smbios3_entry::smbios_len, SMBIOS_SIGNATURE, SMBIOS_VERSION, and smbios::version.

PROVIDE_SMBIOS()

PROVIDE_SMBIOS	(	efi	,
		find_smbios	,
		efi_find_smbios
	)

Variable Documentation

smbios_entry

struct smbios_entry* smbios_entry

static

SMBIOS configuration table.

Definition at line 35 of file efi_smbios.c.

smbios3_entry

struct smbios3_entry* smbios3_entry

static

SMBIOS configuration table.

Definition at line 39 of file efi_smbios.c.