diff --git a/pvmfw/src/helpers.rs b/pvmfw/src/helpers.rs
index f1ff36d..d1b828a 100644
--- a/pvmfw/src/helpers.rs
+++ b/pvmfw/src/helpers.rs
@@ -15,6 +15,7 @@
 //! Miscellaneous helper functions.
 
 use core::arch::asm;
+use zeroize::Zeroize;
 
 pub const SIZE_4KB: usize = 4 << 10;
 pub const SIZE_2MB: usize = 2 << 20;
@@ -75,3 +76,10 @@
         unsafe { asm!("dc cvau, {x}", x = in(reg) line) }
     }
 }
+
+#[inline]
+/// Overwrites the slice with zeroes, to the point of unification.
+pub fn flushed_zeroize(reg: &mut [u8]) {
+    reg.zeroize();
+    flush_region(reg.as_ptr() as usize, reg.len())
+}