diff options
| -rw-r--r-- | src/paging.zig | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/paging.zig b/src/paging.zig index 1a174aa..d1d309c 100644 --- a/src/paging.zig +++ b/src/paging.zig @@ -292,13 +292,13 @@ pub const Table = struct { // discarding offsets. The mapping is written to the specified level, // creating page tables as needed. // - // The mapping must be a leaf, meaning that passing flags + // The mapping must be invalid or a leaf, meaning that passing flags // that indicate no access permissions at all will return an error. // // This function internally uses zeroedAlloc to allocate memory for the required page tables, // but assumes that the physical address to map to has already been allocated by the caller. pub fn map(root: *Table, vaddr: usize, paddr: usize, flags: EntryFlags, level: usize) !void { - if (!flags.isLeaf()) return Error.NotALeaf; + if (@bitCast(flags.valid) and !flags.isLeaf()) return Error.NotALeaf; const vpn = virtualPageNumbers(vaddr); |