diff options
Diffstat (limited to 'src/mem/page_table.hh')
| -rw-r--r-- | src/mem/page_table.hh | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/mem/page_table.hh b/src/mem/page_table.hh index 61da5f322..d60f4a433 100644 --- a/src/mem/page_table.hh +++ b/src/mem/page_table.hh @@ -79,11 +79,19 @@ class PageTable Addr pageAlign(Addr a) { return (a & ~offsetMask); } Addr pageOffset(Addr a) { return (a & offsetMask); } - void allocate(Addr vaddr, int64_t size); + void allocate(Addr vaddr, int64_t size, bool clobber = false); void remap(Addr vaddr, int64_t size, Addr new_vaddr); void deallocate(Addr vaddr, int64_t size); /** + * Check if any pages in a region are already allocated + * @param vaddr The starting virtual address of the region. + * @param size The length of the region. + * @return True if no pages in the region are mapped. + */ + bool isUnmapped(Addr vaddr, int64_t size); + + /** * Lookup function * @param vaddr The virtual address. * @return entry The page table entry corresponding to vaddr. |