stos: pmm: Add physical frame allocation

Signed-off-by: Chloe M. <chloe@mensia.org>
2026-06-22 06:50:36 +00:00
parent ef0588512c
commit df1719fbd0
2 changed files with 28 additions and 0 deletions
@@ -11,9 +11,20 @@

 #include <stdef.h>

+/* Page frame number */
+typedef UQUAD MM_PFN;
+
 /*
 * Initialize the physical memory management
 */
 VOID MmInitPmm(VOID);

+/*
+ * Request a single frame of memory
+ *
+ * Returns the page frame number on success, otherwise
+ * zero on failure e.g., out of memory
+ */
+MM_PFN MmRequestFrame(VOID);
+
 #endif  /* !_MM_PMM_H_ */