Start designing vmem framework

1 files changed, 32 insertions, 0 deletions

diff --git a/include/apos/vmem.h b/include/apos/vmem.h
new file mode 100644
index 0000000..589e814
--- /dev/null
+++ b/include/apos/vmem.h
@@ -0,0 +1,32 @@
+#ifndef APOS_VMEM_H
+#define APOS_VMEM_H
+
+/* arch-specific data */
+#include <vmem.h>
+
+/* general overview of the different functions:
+ * (un)map_vmem: map one known page of physical memory to one known page of
+ * virtual memory
+ *
+ * (un)map_vregion: map known physical region to unknown virtual region within
+ * start and end
+ *
+ * (un)map_vsize: map unknown physical region to unknown virtual region
+ */
+
+void map_vmem(struct vm_branch_t *branch,
+		pm_t paddr, vm_t vaddr,
+		uint8_t flags, enum mm_order_t order);
+
+void unmap_vmem(struct vm_branch_t *branch, vm_t vaddr, enum mm_order_t order);
+
+#define map_kvregion(b, pb, pt) map_vregion(b, pb, pt, VMEM_BASE, VMEM_TOP);
+#define map_uvregion(b, pb, pt) map_vregion(b, pb, pt, UMEM_BASE, UMEM_TOP);
+
+vm_t map_vregion(struct vm_branch_t *branch, pm_t base, pm_t top, vm_t start, vm_t end);
+void unmap_vregion(struct vm_branch_t *branch, pm_t base, pm_t top);
+
+vm_t map_vsize(struct vm_branch_t *branch, size_t size);
+void unmap_vsize(struct vm_branch_t *branch, size_t size);
+
+#endif /* APOS_VMEM_H */