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https://github.com/memtest86plus/memtest86plus.git
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92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (C) 2020-2021 Martin Whitaker.
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//
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// Derived from an extract of memtest86+ test.c:
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//
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// MemTest86+ V5 Specific code (GPL V2.0)
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// By Samuel DEMEULEMEESTER, sdemeule@memtest.org
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// http://www.canardpc.com - http://www.memtest.org
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// Thanks to Passmark for calculate_chunk() and various comments !
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// ----------------------------------------------------
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// test.c - MemTest-86 Version 3.4
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//
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// Released under version 2 of the Gnu Public License.
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// By Chris Brady
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#include <stdint.h>
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#include "display.h"
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#include "error.h"
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#include "test.h"
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#include "test_funcs.h"
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#include "test_helper.h"
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//------------------------------------------------------------------------------
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// Public Functions
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//------------------------------------------------------------------------------
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int test_addr_walk1(int my_vcpu)
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{
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int ticks = 0;
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// There isn't a meaningful address for this test.
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test_addr[my_vcpu] = 0;
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testword_t invert = 0;
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for (int i = 0; i < 2; i++) {
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if (my_vcpu == master_vcpu) {
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display_test_pattern_value(invert);
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}
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ticks++;
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if (my_vcpu < 0) {
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continue;
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}
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for (int j = 0; j < vm_map_size; j++) {
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uintptr_t pb = (uintptr_t)vm_map[j].start;
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uintptr_t pe = (uintptr_t)vm_map[j].end;
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// Walking one on our first address.
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uintptr_t mask1 = sizeof(testword_t);
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do {
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volatile testword_t *p1 = (testword_t *)(pb | mask1);
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mask1 <<= 1;
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if (p1 > (testword_t *)pe) {
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break;
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}
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testword_t expect = invert ^ (testword_t)p1;
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write_word(p1, expect);
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// Walking one on our second address.
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uintptr_t mask2 = sizeof(testword_t);
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do {
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volatile testword_t *p2 = (testword_t *)(pb | mask2);
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mask2 <<= 1;
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if (p2 == p1) {
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continue;
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}
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if (p2 > (testword_t *)pe) {
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break;
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}
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write_word(p2, ~invert ^ (testword_t)p2);
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testword_t actual = read_word(p1);
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if (unlikely(actual != expect)) {
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addr_error(p1, p2, expect, actual);
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write_word(p1, expect); // recover from error
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}
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} while (mask2);
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} while (mask1);
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}
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invert = ~invert;
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do_tick(my_vcpu);
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BAILOUT;
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}
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return ticks;
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}
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