working userland with some invoke syscalls

1 files changed, 41 insertions, 0 deletions

diff --git a/include/arch/x86_64/page.h b/include/arch/x86_64/page.h
new file mode 100644
index 0000000..99bc691
--- /dev/null
+++ b/include/arch/x86_64/page.h
@@ -0,0 +1,41 @@
+#ifndef _JOVE_ARCH_x86_64_PAGE_H
+#define _JOVE_ARCH_x86_64_PAGE_H 1
+
+#include <stdint.h>
+#include "include/object.h"
+
+typedef union jove_PageMapLevelEntry
+{
+    struct {
+        uint8_t p : 1; /* Present */
+        uint8_t rw : 1; /* Read/write. 0 for RO.*/
+        uint8_t us : 1; /* User/supervisor. 0 for DPL3 forbid */
+        uint8_t pwt : 1;
+        uint8_t pcd : 1;
+        uint8_t a : 1; /* Accessed */
+        uint8_t d : 1; /* Dirty */
+        uint8_t ps_pat : 1;
+        uint8_t g : 1; /* Global */
+        uint8_t _r0 : 2;
+        uint8_t r : 1;
+        uint64_t paddr : 35;
+        uint8_t _r1;
+        uint8_t pk : 4;
+        uint8_t xd : 1;
+    }__attribute__((packed));
+    uint64_t value;
+} __attribute__((packed)) pmle_t;
+
+typedef uint16_t pmli_t;
+
+#define PML_SHL(l) ((l * 9) + 3)
+#define PML_I_FOR_LAYER(v, l) ((v >> PML_SHL(l)) % 512)
+
+uintptr_t vmem_ident_tophys(void *vptr);
+void *vmem_phys_tovirt(uintptr_t pptr);
+
+void *pmle_get_page(pmle_t entry);
+
+int untyped_retype_page(objdir_entry_t *untyped_entry, void **dest_ptr);
+
+#endif