Re: [PATCH] x86: merge setup_memory_map with e820

From: H. Peter Anvin
Date: Tue Jun 17 2008 - 12:04:53 EST


Glauber Costa wrote:
+ boot_params.e820_entries = new_nr;
+ if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries) < 0) {
+#ifdef CONFIG_X86_64
+ early_panic("Cannot find a valid memory map");
+#else

Can't this be made dependant on HIGHMEM instead of X86_64? It seems
high-memory dependant anyway. Also, are you sure
this code that maps into himem would work with HIGHMEM disabled anyway?


Uhm... x86-64 and HIGHMEM are mutually exclusive.

Either way, it shouldn't be dependent on anything; there is no reason why the #else clause can't be applied to both.

-hpa


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