diff --git a/src/hulk/cpu.d b/src/hulk/cpu.d
index c46fae6..73c7f4b 100644
--- a/src/hulk/cpu.d
+++ b/src/hulk/cpu.d
@@ -57,6 +57,7 @@ enum ulong XCR0_PKRU = 0x100u;
 /** @} */
 
 /** MSR register numbers. @{ */
+enum uint MSR_PAT = 0x277u;
 enum uint MSR_EFER = 0xC000_0080u;
 /** @} */
 
diff --git a/src/hulk/hurl/hurl.d b/src/hulk/hurl/hurl.d
index bc100a1..9e41bf3 100644
--- a/src/hulk/hurl/hurl.d
+++ b/src/hulk/hurl/hurl.d
@@ -91,7 +91,7 @@ struct Hurl
         map_range(HULK_FRAMEBUFFER,
                 cast(ulong)header.bootinfo.fb.buffer,
                 header.bootinfo.fb.height * header.bootinfo.fb.stride * 4u,
-                PT_WRITABLE | PT_NO_EXECUTE);
+                PT_PAT | PT_WRITABLE | PT_NO_EXECUTE);
         /* Map framebuffer buffer1. */
         map_range(cast(ulong)header.bootinfo.fb_buffer1_phys,
                 cast(ulong)header.bootinfo.fb_buffer1_phys,
@@ -197,6 +197,10 @@ struct Hurl
             }
         }
 
+        /* Set PAT4 to indicate Write Combining so we can set the PAT bit in a
+         * page table entry to use Write Combining for that page. */
+        wrmsr(MSR_PAT, (rdmsr(MSR_PAT) & 0xFFFF_FF00_FFFF_FFFFu) | 0x0000_0001_0000_0000u);
+
         /*
          * Now that we have available physical pages to allocate from, we can
          * build new page tables to replace the bootloader page tables.
diff --git a/src/hulk/pagetable.d b/src/hulk/pagetable.d
index 61ed22f..7475c8b 100644
--- a/src/hulk/pagetable.d
+++ b/src/hulk/pagetable.d
@@ -11,7 +11,8 @@ enum ulong PT_WRITE_THROUGH = 0x8u;
 enum ulong PT_DISABLE_CACHE = 0x10u;
 enum ulong PT_ACCESSED = 0x20u;
 enum ulong PT_DIRTY = 0x40u;
-enum ulong PT_HUGE_PAGE = 0x80u;
+enum ulong PT_PAT = 0x80u; /* Page table entry bit. */
+enum ulong PT_HUGE_PAGE = 0x80u; /* Page directory entry bit. */
 enum ulong PT_GLOBAL = 0x100u;
 enum ulong PT_NO_EXECUTE = 0x8000_0000_0000_0000u;
 /** @} */