diff --git a/src/arch/x86/x64.rs b/src/arch/x86/x64.rs
index a0a275a..cad4592 100644
--- a/src/arch/x86/x64.rs
+++ b/src/arch/x86/x64.rs
@@ -46 +46 @@ pub unsafe fn paging_create(os: &impl Os, kernel_phys: u64, kernel_size: u64) ->
-            for pdp_i in 0..8 {
+            for pdp_i in 0..64 {
@@ -103 +103 @@ pub unsafe fn paging_framebuffer(
-        if framebuffer_phys + framebuffer_size <= 0x2_0000_0000 {
+        if framebuffer_phys + framebuffer_size <= 0x10_0000_0000 {
diff --git a/src/main.rs b/src/main.rs
index a41086e..1ce4bf3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -560,11 +560 @@ fn main(os: &impl Os) -> (usize, u64, KernelArgs) {
-        let max_preload: u64 = 128 * MIBI as u64;
-        let preload_size = if size > max_preload {
-            println!(
-                "live: filesystem is {} MiB, capping preload at {} MiB",
-                size / MIBI as u64,
-                max_preload / MIBI as u64
-            );
-            max_preload
-        } else {
-            size
-        };
+        let mut preload_size: u64 = size;
@@ -572,4 +562,5 @@ fn main(os: &impl Os) -> (usize, u64, KernelArgs) {
-        print!("live: 0/{} MiB", preload_size / MIBI as u64);
-
-        let live_size = match usize::try_from(preload_size) {
-            Ok(live_size) => live_size,
+        let mut ptr = ptr::null_mut();
+        if live {
+            ptr = os.alloc_zeroed_page_aligned(
+                match usize::try_from(preload_size) {
+                    Ok(s) => s,
@@ -581 +572,19 @@ fn main(os: &impl Os) -> (usize, u64, KernelArgs) {
-        };
+                }
+            );
+            if ptr.is_null() && live {
+                println!(
+                    "\rlive: unable to allocate {} MiB, halving...",
+                    preload_size / MIBI as u64
+                );
+                let floor: u64 = 128 * MIBI as u64;
+                while preload_size > floor {
+                    preload_size /= 2;
+                    if let Ok(smaller) = usize::try_from(preload_size) {
+                        ptr = os.alloc_zeroed_page_aligned(smaller);
+                        if !ptr.is_null() {
+                            break;
+                        }
+                    }
+                }
+            }
+        }
@@ -583,6 +592 @@ fn main(os: &impl Os) -> (usize, u64, KernelArgs) {
-        let ptr = if live {
-            os.alloc_zeroed_page_aligned(live_size)
-        } else {
-            ptr::null_mut()
-        };
-        if live && ptr.is_null() {
+        if ptr.is_null() {
@@ -595,0 +600,11 @@ fn main(os: &impl Os) -> (usize, u64, KernelArgs) {
+        print!("live: 0/{} MiB", preload_size / MIBI as u64);
+
+        let live_size = match usize::try_from(preload_size) {
+            Ok(live_size) => live_size,
+            Err(_) => {
+                println!("\rlive: disabled (image too large for bootloader address space)");
+                live = false;
+                0
+            }
+        };
+
diff --git a/src/os/uefi/mod.rs b/src/os/uefi/mod.rs
index d0b2cf1..dacead6 100644
--- a/src/os/uefi/mod.rs
+++ b/src/os/uefi/mod.rs
@@ -48,2 +48 @@ pub(crate) fn alloc_zeroed_page_aligned(size: usize) -> *mut u8 {
-        // Max address mapped by src/arch paging code (8 GiB)
-        let mut ptr = 0x2_0000_0000;
+        let mut ptr = 0;
@@ -51,2 +50,2 @@ pub(crate) fn alloc_zeroed_page_aligned(size: usize) -> *mut u8 {
-            1,                                  // AllocateMaxAddress
-            MemoryType::EfiRuntimeServicesData, // Keeps this memory out of free space list
+            0,                       // AllocateAnyPages
+            MemoryType::EfiLoaderData, // Valid until ExitBootServices