initial commit support 3.xx and 4.xx

shellcode_kernel/utils.h

@@ -0,0 +1,43 @@
+#ifndef UTILS_H
+#define UTILS_H
+#include "shellcode_kernel_args.h"
+#include <stdint.h>
+
+extern void (*printf)(const char *format, ...);
+uint64_t PHYS_TO_DMAP(uint64_t pa);
+void memcpy(void *dest, void *src, uint64_t len);
+
+// Defines for Page management
+enum page_bits {
+  P = 0,
+  RW,
+  US,
+  PWT,
+  PCD,
+  A,
+  D,
+  PS,
+  G,
+  XO = 58,
+  PK = 59,
+  NX = 63
+};
+
+#define PG_B_P (1ULL << P)
+#define PG_B_RW (1ULL << RW)
+#define PAGE_P(x) (x & (1ULL << P))
+#define PAGE_RW(x) (x & (1ULL << RW))
+#define PAGE_PS(x) (x & (1ULL << PS))
+#define PAGE_XO(x) (x & (1ULL << XO))
+#define PAGE_CLEAR_XO(x) (x &= ~(1ULL << XO))
+#define PAGE_CLEAR_G(x) (x &= ~(1ULL << G))
+#define PAGE_SET_RW(x) (x |= (1ULL << RW))
+#define PAGE_PA(x) (x & 0x000FFFFFFFFFF000ULL)
+#define P_SIZE(l) ((l == 1) ? (1ULL << 30) : (1ULL << 21))
+
+uint64_t read_cr3(void);
+uint64_t va_to_pa_kernel(uint64_t va);
+uint64_t va_to_pa_custom(uint64_t va, uint64_t cr3_custom);
+uint32_t putc_uart(uint64_t dmap, uint8_t tx_byte);
+
+#endif