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// BarryServer : Git / Nucleus / commit / acd091571545e40dc85fc691d9d0b12cf4d363ee / kernel / acpi / apic.c

// Related

Nucleus

Barry Initialise ACPI later acd0915 (3 years, 3 months ago)
diff --git a/kernel/acpi/apic.c b/kernel/acpi/apic.c
index 67ebb06..423d815 100644
--- a/kernel/acpi/apic.c
+++ b/kernel/acpi/apic.c
@@ -53,6 +53,7 @@ struct ISOEntry {
 	uint8_t gsi, flags;
 };
 
+int apic = 0;
 size_t numCores = 1;
 uintptr_t lapicPtr, ioapicPtr;
 cpu_t lapicIds[MAX_CPUS], lapicNums[MAX_CPUS];
@@ -125,12 +126,16 @@ apic_start_timer(void)
 void
 init_apic(struct SDTHeader *header)
 {
+	apic = 1;
 	numCores = 0;
 
 	uint8_t overrides[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
 
 	/* Iterate the entries */
 	lapicPtr = *(uint32_t *) (header + 1);
+	set_page(lapicPtr, PAGE_ADDR(lapicPtr) |
+	         PTE_PRESENT | PTE_WRITE | PTE_GLOBAL);
+	flush_tlb(lapicPtr);
 	struct EntryHeader *entry = (void *) (header + 1) + 8;
 	struct LAPICEntry *lapic;
 	struct IOAPICEntry *ioapic;
@@ -158,6 +163,9 @@ init_apic(struct SDTHeader *header)
 		}
 		entry = (void *) entry + entry->length;
 	}
+	set_page(ioapicPtr, PAGE_ADDR(ioapicPtr) |
+	         PTE_PRESENT | PTE_WRITE | PTE_GLOBAL);
+	flush_tlb(ioapicPtr);
 
 	/* Send INT#1 to IRQ#33 on CPU#0 */
 	write_io_apic(0x10 + (2 * overrides[1] + 0), 33);