1 files changed, 0 insertions, 111 deletions
diff --git a/src/kernel/arch/amd64/32/gdt.c b/src/kernel/arch/amd64/32/gdt.c
deleted file mode 100644
index e643f27..0000000
--- a/src/kernel/arch/amd64/32/gdt.c
+++ /dev/null
@@ -1,111 +0,0 @@
-#include <kernel/arch/amd64/32/util.h>
-#include <kernel/arch/amd64/boot.h>
-#include <stdbool.h>
-#include <stdint.h>
-
-extern char _isr_mini_stack;
-
-struct gdt_entry {
-	uint64_t limit_low  : 16;
-	uint64_t base_low   : 24;
-	uint64_t accessed   :  1; // set by the processor
-	                          // CODE        | DATA
-	uint64_t rw         :  1; // readable?   | writeable?
-	uint64_t conforming :  1; // conforming? | expands down?
-	uint64_t code       :  1; // 1           | 0
-
-	uint64_t codeordata :  1; // 1 for everything other than TSS and LDT
-	uint64_t ring       :  2;
-	uint64_t present    :  1; // always 1
-	uint64_t limit_high :  4;
-	uint64_t available  :  1; // ???
-	uint64_t long_mode  :  1;
-	uint64_t x32        :  1;
-	uint64_t gran       :  1; // 1 - 4kb, 0 - 1b
-	uint64_t base_high  :  8;
-} __attribute__((packed));
-
-struct tss_entry {
-	uint32_t reserved0;
-	uint64_t rsp[3];
-	uint64_t ist[8];
-	uint64_t reserved2;
-	uint16_t reserved3;
-	uint16_t iopb;
-} __attribute__((packed));
-
-struct lgdt_arg {
-	uint16_t limit;
-	uint32_t base;
-} __attribute__((packed));
-
-__attribute__((section(".shared")))
-static struct gdt_entry GDT[SEG_end];
-__attribute__((section(".shared")))
-static struct tss_entry TSS;
-
-struct lgdt_arg lgdt_arg;
-
-static void gdt_fillout(struct gdt_entry* entry, uint8_t ring, bool code) {
-	*entry = (struct gdt_entry) {
-		// set up the identity mapping
-		.limit_low  = 0xFFFF,
-		.limit_high = 0xF,
-		.gran       = 1,
-		.base_low   = 0,
-		.base_high  = 0,
-
-		.ring       = ring,
-		.code       = code,
-
-		.accessed   = 0,
-		.rw         = 1,
-		.conforming = 0,
-		.codeordata = 1,
-		.present    = 1,
-		.long_mode  = 1,
-		.available  = 1,
-		.x32        = 0,
-	};
-}
-
-#pragma GCC diagnostic ignored "-Wpointer-to-int-cast"
-void gdt_init(void) {
-	GDT[SEG_null].present = 0;
-
-	gdt_fillout(&GDT[SEG_r0code], 0, true);
-	gdt_fillout(&GDT[SEG_r0data], 0, false);
-	gdt_fillout(&GDT[SEG_r3code32], 3, true);
-	gdt_fillout(&GDT[SEG_r3data], 3, false);
-	gdt_fillout(&GDT[SEG_r3code], 3, true);
-
-	lgdt_arg.limit = sizeof(GDT) - 1;
-	lgdt_arg.base = (uint64_t)&GDT;
-
-
-	memset32(&TSS, 0, sizeof(TSS));
-	for (int i = 0; i < 3; i++)
-		TSS.rsp[i] = (uint64_t)&_isr_mini_stack;
-	TSS.ist[1] = (uint64_t)&_isr_mini_stack;
-
-	uint64_t tss_addr = (uint64_t)&TSS;
-	GDT[SEG_TSS] = (struct gdt_entry) {
-		.limit_low  = sizeof(TSS),
-		.limit_high = sizeof(TSS) >> 16,
-		.gran       = 0,
-		.base_low   = tss_addr,
-		.base_high  = tss_addr >> 24,
-
-		.accessed   = 1,
-		.rw         = 0,
-		.conforming = 0,
-		.code       = 1,
-		.codeordata = 0,
-		.ring       = 0, // was 3 pre-port
-		.present    = 1,
-		.available  = 1,
-		.long_mode  = 0,
-		.x32        = 0,
-	};
-	memset32(&GDT[SEG_TSS2], 0, sizeof GDT[SEG_TSS2]);
-}