diff --git a/src/core/shmgraphicsbufferallocator.cpp b/src/core/shmgraphicsbufferallocator.cpp
index fcc0bbfffc..12fb0bc8e1 100644
--- a/src/core/shmgraphicsbufferallocator.cpp
+++ b/src/core/shmgraphicsbufferallocator.cpp
@@ -21,6 +21,33 @@ ShmGraphicsBuffer::ShmGraphicsBuffer(ShmAttributes &&attributes)
 {
 }
 
+void *ShmGraphicsBuffer::map(MapFlags flags)
+{
+    if (m_memoryMap.isValid()) {
+        return m_memoryMap.data();
+    }
+
+    int prot = 0;
+    if (flags & MapFlag::Read) {
+        prot |= PROT_READ;
+    }
+    if (flags & MapFlag::Write) {
+        prot |= PROT_WRITE;
+    }
+
+    m_memoryMap = MemoryMap(m_attributes.stride * m_attributes.size.height(), prot, MAP_SHARED, m_attributes.fd.get(), m_attributes.offset);
+    if (m_memoryMap.isValid()) {
+        return m_memoryMap.data();
+    }
+
+    return nullptr;
+}
+
+void ShmGraphicsBuffer::unmap()
+{
+    m_memoryMap = MemoryMap{};
+}
+
 QSize ShmGraphicsBuffer::size() const
 {
     return m_attributes.size;
diff --git a/src/core/shmgraphicsbufferallocator.h b/src/core/shmgraphicsbufferallocator.h
index 41119abb22..65cbac89ce 100644
--- a/src/core/shmgraphicsbufferallocator.h
+++ b/src/core/shmgraphicsbufferallocator.h
@@ -8,7 +8,7 @@
 
 #include "core/graphicsbuffer.h"
 #include "core/graphicsbufferallocator.h"
-#include "utils/filedescriptor.h"
+#include "utils/memorymap.h"
 
 namespace KWin
 {
@@ -20,12 +20,16 @@ class KWIN_EXPORT ShmGraphicsBuffer : public GraphicsBuffer
 public:
     explicit ShmGraphicsBuffer(ShmAttributes &&attributes);
 
+    void *map(MapFlags flags) override;
+    void unmap() override;
+
     QSize size() const override;
     bool hasAlphaChannel() const override;
     const ShmAttributes *shmAttributes() const override;
 
 private:
     ShmAttributes m_attributes;
+    MemoryMap m_memoryMap;
     bool m_hasAlphaChannel;
 };