mirror of https://github.com/ipxe/ipxe.git
[acpi] Add MAC address extraction self-tests
Signed-off-by: Michael Brown <mcb30@ipxe.org>pull/631/head
Michael Brown
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/*
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* Copyright (C) 2022 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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/** @file
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*
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* ACPI tests
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*
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*/
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/* Forcibly enable assertions */
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#undef NDEBUG
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#include <ipxe/acpi.h>
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#include <ipxe/acpimac.h>
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#include <ipxe/if_ether.h>
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#include <ipxe/test.h>
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/** An ACPI test table signature */
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union acpi_test_signature {
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/** String */
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char str[4];
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/** Raw value */
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uint32_t raw;
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};
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/** An ACPI test table */
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struct acpi_test_table {
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/** Signature */
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union acpi_test_signature signature;
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/** Table content */
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const void *data;
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};
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/** An ACPI test table set */
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struct acpi_test_tables {
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/** Tables */
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struct acpi_test_table **table;
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/** Number of tables */
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unsigned int count;
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};
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/** An ACPI MAC extraction test */
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struct acpi_mac_test {
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/** ACPI test table set */
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struct acpi_test_tables *tables;
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/** Expected MAC address */
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uint8_t expected[ETH_ALEN];
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};
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/** Define inline data */
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#define DATA(...) { __VA_ARGS__ }
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/** Define an ACPI test table */
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#define ACPI_TABLE( name, SIGNATURE, DATA ) \
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static const uint8_t name ## _data[] = DATA; \
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static struct acpi_test_table name = { \
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.signature = { \
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.str = SIGNATURE, \
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}, \
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.data = name ## _data, \
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}
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/** Define an ACPI test table set */
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#define ACPI_TABLES( name, ... ) \
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static struct acpi_test_table * name ## _table[] = \
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{ __VA_ARGS__ }; \
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static struct acpi_test_tables name = { \
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.table = name ## _table, \
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.count = ( sizeof ( name ## _table ) / \
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sizeof ( name ## _table[0] ) ), \
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}
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/** Define an ACPI MAC extraction test */
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#define ACPI_MAC( name, TABLES, EXPECTED ) \
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static struct acpi_mac_test name = { \
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.tables = TABLES, \
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.expected = EXPECTED, \
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}
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/** "AMAC" SSDT
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*
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* DefinitionBlock ("", "SSDT", 2, "", "", 0x0) {
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* Scope (\_SB) {
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* Method (HW00, 0, Serialized) { Return(0) }
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* Method (AMAC, 0, Serialized) { ToString("_AUXMAC_#525400aabbcc#") }
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* Method (HW42, 0, Serialized) { Return(42) }
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* }
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* }
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*/
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ACPI_TABLE ( amac_ssdt, "SSDT",
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DATA ( 0x53, 0x53, 0x44, 0x54, 0x5d, 0x00, 0x00, 0x00, 0x02,
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0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x49, 0x4e, 0x54, 0x4c, 0x04, 0x06, 0x21, 0x20,
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0x10, 0x38, 0x5c, 0x5f, 0x53, 0x42, 0x5f, 0x14, 0x08,
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0x48, 0x57, 0x30, 0x30, 0x08, 0xa4, 0x00, 0x14, 0x1e,
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0x41, 0x4d, 0x41, 0x43, 0x08, 0x0d, 0x5f, 0x41, 0x55,
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0x58, 0x4d, 0x41, 0x43, 0x5f, 0x23, 0x35, 0x32, 0x35,
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0x34, 0x30, 0x30, 0x61, 0x61, 0x62, 0x62, 0x63, 0x63,
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0x23, 0x00, 0x14, 0x09, 0x48, 0x57, 0x34, 0x32, 0x08,
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0xa4, 0x0a, 0x2a ) );
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/** "AMAC" test tables */
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ACPI_TABLES ( amac_tables, &amac_ssdt );
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/** "AMAC" test */
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ACPI_MAC ( amac, &amac_tables,
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DATA ( 0x52, 0x54, 0x00, 0xaa, 0xbb, 0xcc ) );
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/** "MACA" SSDT1 (does not contain AUXMAC) */
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ACPI_TABLE ( maca_ssdt1, "SSDT",
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DATA ( 0x53, 0x53, 0x44, 0x54, 0x3e, 0x00, 0x00, 0x00, 0x02,
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0x5f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x49, 0x4e, 0x54, 0x4c, 0x04, 0x06, 0x21, 0x20,
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0x10, 0x19, 0x5c, 0x5f, 0x53, 0x42, 0x5f, 0x14, 0x08,
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0x48, 0x57, 0x30, 0x30, 0x08, 0xa4, 0x00, 0x14, 0x09,
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0x48, 0x57, 0x34, 0x32, 0x08, 0xa4, 0x0a, 0x2a ) );
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/** "MACA" SSDT2 (contains AUXMAC) */
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ACPI_TABLE ( maca_ssdt2, "SSDT",
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DATA ( 0x53, 0x53, 0x44, 0x54, 0x54, 0x00, 0x00, 0x00, 0x02,
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0x3d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x49, 0x4e, 0x54, 0x4c, 0x04, 0x06, 0x21, 0x20,
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0x10, 0x2f, 0x5c, 0x5f, 0x53, 0x42, 0x5f, 0x14, 0x1e,
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0x4d, 0x41, 0x43, 0x41, 0x08, 0x0d, 0x5f, 0x41, 0x55,
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0x58, 0x4d, 0x41, 0x43, 0x5f, 0x23, 0x35, 0x32, 0x35,
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0x34, 0x30, 0x30, 0x31, 0x31, 0x32, 0x32, 0x33, 0x33,
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0x23, 0x00, 0x14, 0x09, 0x48, 0x57, 0x39, 0x39, 0x08,
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0xa4, 0x0a, 0x63 ) );
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/** "MACA" test tables */
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ACPI_TABLES ( maca_tables, &maca_ssdt1, &maca_ssdt2 );
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/** "MACA" test */
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ACPI_MAC ( maca, &maca_tables,
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DATA ( 0x52, 0x54, 0x00, 0x11, 0x22, 0x33 ) );
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/** Current ACPI test table set */
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static struct acpi_test_tables *acpi_test_tables;
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/**
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* Locate ACPI test table
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*
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* @v signature Requested table signature
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* @v index Requested index of table with this signature
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* @ret table Table, or UNULL if not found
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*/
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static userptr_t acpi_test_find ( uint32_t signature, unsigned int index ) {
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struct acpi_test_table *table;
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unsigned int i;
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/* Fail if no test tables are installed */
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if ( ! acpi_test_tables )
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return UNULL;
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/* Scan through test tables */
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for ( i = 0 ; i < acpi_test_tables->count ; i++ ) {
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table = acpi_test_tables->table[i];
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if ( ( signature == le32_to_cpu ( table->signature.raw ) ) &&
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( index-- == 0 ) ) {
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return virt_to_user ( table->data );
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}
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}
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return UNULL;
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}
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/** Override ACPI table finder */
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typeof ( acpi_find ) *acpi_finder = acpi_test_find;
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/**
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* Report ACPI MAC extraction test result
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*
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* @v test ACPI MAC extraction test
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* @v file Test code file
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* @v line Test code line
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*/
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static void acpi_mac_okx ( struct acpi_mac_test *test,
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const char *file, unsigned int line ) {
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uint8_t mac[ETH_ALEN];
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int rc;
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/* Set test table set */
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acpi_test_tables = test->tables;
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/* Extract MAC address */
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rc = acpi_mac ( mac );
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okx ( rc == 0, file, line );
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/* Check extracted MAC address */
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okx ( memcmp ( mac, test->expected, ETH_ALEN ) == 0, file, line );
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/* Clear test table set */
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acpi_test_tables = NULL;
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}
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#define acpi_mac_ok( test ) \
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acpi_mac_okx ( test, __FILE__, __LINE__ )
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/**
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* Perform ACPI self-test
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*
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*/
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static void acpi_test_exec ( void ) {
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/* MAC extraction tests */
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acpi_mac_ok ( &amac );
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acpi_mac_ok ( &maca );
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}
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/** ACPI self-test */
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struct self_test acpi_test __self_test = {
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.name = "acpi",
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.exec = acpi_test_exec,
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};
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@ -76,3 +76,4 @@ REQUIRE_OBJECT ( ntlm_test );
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REQUIRE_OBJECT ( zlib_test );
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REQUIRE_OBJECT ( gzip_test );
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REQUIRE_OBJECT ( utf8_test );
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REQUIRE_OBJECT ( acpi_test );
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