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Fix user apps randomly crashing (APIC, GDT layout, syscall entry)
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Kamil Kowalczyk
2026-01-14 19:51:18 +01:00
parent 0d8f9e565f
commit d1d772cb42
23 changed files with 276 additions and 204 deletions
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4
kernel/amd64/init.c
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@@ -39,8 +39,8 @@ static void amd64_gdt_init (struct cpu* cpu) {
amd64_gdt_set (&gdt->old[0], 0, 0, 0, 0);
amd64_gdt_set (&gdt->old[1], 0, 0xFFFFF, 0x9A, 0xA0);
amd64_gdt_set (&gdt->old[2], 0, 0xFFFFF, 0x92, 0xC0);
amd64_gdt_set (&gdt->old[3], 0, 0xFFFFF, 0xFA, 0xA0);
amd64_gdt_set (&gdt->old[4], 0, 0xFFFFF, 0xF2, 0xC0);
amd64_gdt_set (&gdt->old[3], 0, 0xFFFFF, 0xF2, 0xC0);
amd64_gdt_set (&gdt->old[4], 0, 0xFFFFF, 0xFA, 0xA0);
amd64_gdt_set (&gdt->tsslow, (tssbase & 0xFFFFFFFF), tsslimit, TSS_PRESENT | TSS, 0);
uint32_t tssbasehigh = (tssbase >> 32);