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Init IOAPIC nad LAPICs

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This commit is contained in:
Kamil Kowalczyk
2025-08-21 00:47:58 +02:00
parent 3f6df79885
commit 9d8849a425
25 changed files with 801 additions and 306 deletions
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138
kernel/hal/x86_64/uACPI/tests/runner/barebones_runner.c
View File

@ -54,6 +54,33 @@ static uint8_t test_mcfg[] = {
0x00, 0x00, 0x00, 0x00
};
/*
* 4 Local APICs [0, 1, 2, 3]
* 2 IOAPICs [4, 5]
* 2 ISOs [0->2, 9->9]
* 4 NMIs [0, 1, 2, 3]
*/
static uint8_t test_apic[] = {
0x41, 0x50, 0x49, 0x43, 0x90, 0x00, 0x00, 0x00,
0x03, 0x1a, 0x48, 0x50, 0x51, 0x4f, 0x45, 0x4d,
0x53, 0x4c, 0x49, 0x43, 0x2d, 0x4d, 0x50, 0x43,
0x01, 0x00, 0x00, 0x00, 0x48, 0x50, 0x20, 0x20,
0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0xe0, 0xfe,
0x01, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x00, 0x08, 0x01, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x08, 0x02, 0x02,
0x01, 0x00, 0x00, 0x00, 0x00, 0x08, 0x03, 0x03,
0x01, 0x00, 0x00, 0x00, 0x01, 0x0c, 0x04, 0x00,
0x00, 0x00, 0xc0, 0xfe, 0x00, 0x00, 0x00, 0x00,
0x01, 0x0c, 0x05, 0x00, 0x00, 0x10, 0xc0, 0xfe,
0x18, 0x00, 0x00, 0x00, 0x02, 0x0a, 0x00, 0x00,
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x0a,
0x00, 0x09, 0x09, 0x00, 0x00, 0x00, 0x0f, 0x00,
0x04, 0x06, 0x00, 0x05, 0x00, 0x01, 0x04, 0x06,
0x01, 0x05, 0x00, 0x01, 0x04, 0x06, 0x02, 0x05,
0x00, 0x01, 0x04, 0x06, 0x03, 0x05, 0x00, 0x01
};
static void ensure_signature_is(const char *signature, uacpi_table tbl)
{
if (strncmp(tbl.hdr->signature, signature, 4) == 0)
@ -105,12 +132,123 @@ static void test_table_installation(void)
uacpi_table_unref(&tbl);
}
static uacpi_iteration_decision check_madt(
uacpi_handle user, struct acpi_entry_hdr *hdr
)
{
size_t *idx = user;
struct acpi_madt_lapic *lapic;
struct acpi_madt_ioapic *ioapic;
struct acpi_madt_interrupt_source_override *iso;
struct acpi_madt_lapic_nmi *nmi;
switch (*idx) {
case 0:
case 1:
case 2:
case 3:
if (hdr->type != ACPI_MADT_ENTRY_TYPE_LAPIC)
goto out_unexpected;
lapic = (struct acpi_madt_lapic*)hdr;
if (lapic->id != *idx)
error("unexpected LAPIC id %d (idx %d)\n", lapic->id, *idx);
break;
case 4:
case 5:
if (hdr->type != ACPI_MADT_ENTRY_TYPE_IOAPIC)
goto out_unexpected;
ioapic = (struct acpi_madt_ioapic*)hdr;
if (ioapic->id != *idx)
error("unexpected IOAPIC id %d (idx %d)\n", ioapic->id, *idx);
break;
case 6:
case 7:
if (hdr->type != ACPI_MADT_ENTRY_TYPE_INTERRUPT_SOURCE_OVERRIDE)
goto out_unexpected;
iso = (struct acpi_madt_interrupt_source_override*)hdr;
if ((*idx == 6 && iso->source != 0) ||
(*idx == 7 && iso->source != 9))
error("unexpected ISO source %d (idx %d)\n", iso->source, *idx);
break;
case 8:
case 9:
case 10:
case 11:
if (hdr->type != ACPI_MADT_ENTRY_TYPE_LAPIC_NMI)
goto out_unexpected;
nmi = (struct acpi_madt_lapic_nmi*)hdr;
if (nmi->uid != (*idx - 8))
error("unexpected LAPIC NMI uid %d (idx %d)\n", nmi->uid, *idx);
break;
default:
goto out_unexpected;
}
(*idx)++;
return UACPI_ITERATION_DECISION_CONTINUE;
out_unexpected:
error("unexpected MADT entry type %d (idx = %zu)\n", hdr->type, *idx);
return UACPI_ITERATION_DECISION_BREAK;
}
#define CHECK_SUBTEST_FAILED \
if (st != UACPI_STATUS_INVALID_TABLE_LENGTH) \
error("unexpected status %s\n", uacpi_status_to_string(st));
#define CHECK_SUBTEST_SUCCEEDED \
if (idx != 12) \
error("invalid number of iterations: %zu\n", idx);
#define FOREACH_SUBTEST(check_cond) \
idx = 0; \
st = uacpi_for_each_subtable( \
tbl.hdr, sizeof(struct acpi_madt), check_madt, &idx \
); \
check_cond; \
static void test_foreach_subtable(void)
{
uacpi_status st;
uacpi_table tbl;
size_t idx = 0;
st = uacpi_table_install(test_apic, &tbl);
ensure_ok_status(st);
ensure_signature_is(ACPI_MADT_SIGNATURE, tbl);
uacpi_table_unref(&tbl);
FOREACH_SUBTEST(CHECK_SUBTEST_SUCCEEDED);
// Make the size slightly larger, make sure we don't crash
test_apic[4] += 1;
FOREACH_SUBTEST(CHECK_SUBTEST_SUCCEEDED);
// Change the size to 1 byte and make sure we don't crash
test_apic[4] = 1;
FOREACH_SUBTEST(CHECK_SUBTEST_FAILED);
// Cutoff subtable
test_apic[4] = sizeof(struct acpi_madt) + sizeof(struct acpi_entry_hdr) + 1;
FOREACH_SUBTEST(CHECK_SUBTEST_FAILED);
test_apic[4] = sizeof(test_apic);
// Out-of-bounds subtable
test_apic[sizeof(test_apic) - 5]++;
FOREACH_SUBTEST(CHECK_SUBTEST_FAILED);
// all pass
test_apic[sizeof(test_apic) - 5]--;
uacpi_table_unref(&tbl);
}
static struct {
const char *name;
void (*func)(void);
} test_cases[] = {
{ "basic-operation", test_basic_operation },
{ "table-installation", test_table_installation },
{ "foreach-subtable", test_foreach_subtable },
};
static arg_spec_t TEST_CASE_ARG = ARG_POS("test-case", "name of the test case");

2
kernel/hal/x86_64/uACPI/tests/runner/helpers.h
View File

@ -20,6 +20,8 @@ NORETURN static inline void error(const char *format, ...)
{
va_list args;
fflush(stdout);
fprintf(stderr, "unexpected error: ");
va_start(args, format);
vfprintf(stderr, format, args);