x86: cleanup boot-heap usage
The kernel decompressor wrapper uses memory located beyond the
end of the image. This might lead to hard to debug problems,
but even if it can be proven to be safe, it is at the very
least unclean. I don't see any advantages either, unless you
count it not being zeroed out as an advantage. This patch
moves the boot-heap area to the bss segment.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/asm-x86/boot.h b/include/asm-x86/boot.h
index ed8affb..2faed7e 100644
--- a/include/asm-x86/boot.h
+++ b/include/asm-x86/boot.h
@@ -17,4 +17,12 @@
+ (CONFIG_PHYSICAL_ALIGN - 1)) \
& ~(CONFIG_PHYSICAL_ALIGN - 1))
+#ifdef CONFIG_X86_64
+#define BOOT_HEAP_SIZE 0x7000
+#define BOOT_STACK_SIZE 0x4000
+#else
+#define BOOT_HEAP_SIZE 0x4000
+#define BOOT_STACK_SIZE 0x1000
+#endif
+
#endif /* _ASM_BOOT_H */