paging: Remove unused unmapEntry method

1 files changed, 0 insertions, 22 deletions

diff --git a/src/paging.zig b/src/paging.zig
index dfe44cc..1a174aa 100644
--- a/src/paging.zig
+++ b/src/paging.zig
@@ -354,28 +354,6 @@ pub const Table = struct {
         }
     }
 
-    pub fn unmapEntry(root: *Table, vaddr: usize) void {
-        const vpn = virtualPageNumbers(vaddr);
-
-        var v = &root.entries[vpn[2]];
-
-        for (0..3) |iInv| {
-            const i = 2 - iInv;
-
-            if (!v.isValid()) {
-                break;
-            } else if (v.isLeaf()) {
-                v.flags.valid = 0;
-                // IMPORTANT: Flush TLB correctly
-                // if sfence.vma in process.switchTo is ever optimized.
-                return;
-            }
-
-            const entry: *[512]Entry = @ptrFromInt(v.mappingAddr());
-            v = &entry[vpn[i - 1]];
-        }
-    }
-
     // Returns the physical address to a virtual address using the provided level 2 page table.
     // This can be used to access virtual addresses whose page table isn't active
     // in the MMU / SATP CSR (Control and Status Register), making it possible