fix: Update memory section start address in linker script to 512MB

2 files changed, 5 insertions, 5 deletions

diff --git a/mirai/kata/memory.zig b/mirai/kata/memory.zig
index 1ec8ef0..9d29758 100644
--- a/mirai/kata/memory.zig
+++ b/mirai/kata/memory.zig
@@ -95,10 +95,10 @@ pub fn setup(kata: *types.Kata, framebuffer_phys: u64, framebuffer_size: u64) !v
     const first_page = pmm.alloc_page() orelse return error.OutOfMemory;
     const kernel_stack_base = first_page;
 
-    // Identity map first page in kata's page table
+    // Identity map first page
     _ = try paging.map_page_in_table(kata.page_table, first_page, first_page, paging.PAGE_WRITABLE);
 
-    // Zero the page (via higher-half which kernel always has mapped)
+    // Zero the page
     var page_ptr: [*]volatile u8 = @ptrFromInt(first_page + HIGHER_HALF);
     for (0..PAGE_SIZE) |j| {
         page_ptr[j] = 0;
@@ -116,7 +116,7 @@ pub fn setup(kata: *types.Kata, framebuffer_phys: u64, framebuffer_size: u64) !v
             break;
         }
 
-        // Identity map this page in kata's page table
+        // Identity map this page
         _ = try paging.map_page_in_table(kata.page_table, page, page, paging.PAGE_WRITABLE);
 
         // Zero the page
@@ -126,7 +126,7 @@ pub fn setup(kata: *types.Kata, framebuffer_phys: u64, framebuffer_size: u64) !v
         }
     }
 
-    // Stack top uses IDENTITY address (not higher-half) since that's what we mapped
+    // Stack top is at the end of allocated contiguous pages (identity address)
     const actual_stack_size = i * PAGE_SIZE;
     kata.stack_top = kernel_stack_base + actual_stack_size;
 
diff --git a/toolchain/linker/akiba.binary.linker b/toolchain/linker/akiba.binary.linker
index 1ef6085..7a5a72d 100644
--- a/toolchain/linker/akiba.binary.linker
+++ b/toolchain/linker/akiba.binary.linker
@@ -4,7 +4,7 @@ ENTRY(_start)
 
 SECTIONS
 {
-    . = 0x1000000; /* Start at 16MB (after kernel) */
+    . = 0x20000000; /* Start at 512MB (above kernel identity-mapped region) */
 
     .text : {
         *(.text)