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Fix stivale2 SMP tag issue

This commit is contained in:
mintsuki 2020-09-26 17:12:52 +02:00
parent a58fd6bd3c
commit b733ef25ef
2 changed files with 5 additions and 5 deletions
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stage2/sys/smp.c
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@ -90,7 +90,7 @@ struct smp_information *init_smp(size_t *cpu_count,
asm volatile ("sgdt %0" :: "m"(gdtr) : "memory");
struct smp_information *ret = conv_mem_alloc_aligned(0, 1);
*cpu_count = 1;
*cpu_count = 0;
// Parse the MADT entries
for (uint8_t *madt_ptr = (uint8_t *)madt->madt_entries_begin;
@ -104,6 +104,10 @@ struct smp_information *init_smp(size_t *cpu_count,
struct madt_lapic *lapic = (void *)madt_ptr;
// Check if we can actually try to start the AP
if (!((lapic->flags & 1) ^ ((lapic->flags >> 1) & 1)))
continue;
struct smp_information *info_struct =
conv_mem_alloc_aligned(sizeof(struct smp_information), 1);
@ -116,10 +120,6 @@ struct smp_information *init_smp(size_t *cpu_count,
continue;
}
// Check if we can actually try to start the AP
if (!((lapic->flags & 1) ^ ((lapic->flags >> 1) & 1)))
continue;
print("smp: Found candidate AP for bring-up. LAPIC ID: %u\n", lapic->lapic_id);
// Try to start the AP