1 files changed, 29 insertions, 0 deletions
diff --git a/arch/riscv/include/vmem.h b/arch/riscv/include/vmem.h
new file mode 100644
index 0000000..3c27c7b
--- /dev/null
+++ b/arch/riscv/include/vmem.h
@@ -0,0 +1,29 @@
+#ifndef APOS_RISCV_VMAP_H
+#define APOS_RISCV_VMAP_H
+
+#include <apos/sizes.h>
+#include <apos/types.h>
+#include <apos/attrs.h>
+
+#define VM_V (1 << 0)
+#define VM_R (1 << 1)
+#define VM_W (1 << 2)
+#define VM_X (1 << 3)
+#define VM_U (1 << 4)
+#define VM_G (1 << 5)
+#define VM_A (1 << 6)
+#define VM_D (1 << 7)
+
+typedef size_t vaddr_t;
+struct __packed vm_branch_t {
+	struct vm_branch_t *leaf[512];
+};
+
+void map_vmem(struct vm_branch_t *branch,
+		paddr_t paddr, vaddr_t vaddr,
+		uint8_t flags, enum mm_order_t order);
+
+void unmap_vmem(struct vm_branch_t *branch, vaddr_t vaddr, enum mm_order_t order);
+
+
+#endif /* APOS_RISCV_VMAP_H */