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-rw-r--r--boot/startup-x86_64.s7
1 files changed, 7 insertions, 0 deletions
diff --git a/boot/startup-x86_64.s b/boot/startup-x86_64.s
index 6392d0f..a8b44c2 100644
--- a/boot/startup-x86_64.s
+++ b/boot/startup-x86_64.s
@@ -186,3 +186,10 @@ pml4:
pdp:
resb 4096
alignb 4096
+
+; reserve 8MiB for frame alloc.
+; (see linker file)
+[SECTION .global_free_page_stack]
+free_page_stack:
+ resb 8388608
+ alignb 4096