| commit | b6fd6f26733e864fba2ea3eb1d716e23d2e66f3a | [log] [tgz] |
|---|---|---|
| author | Ingo Molnar <mingo@elte.hu> | Tue Dec 16 19:23:36 2008 +0100 |
| committer | Ingo Molnar <mingo@elte.hu> | Tue Dec 16 19:31:52 2008 +0100 |
| tree | 6b76b47a3366d502cbb8a740c15e9d2f46aea645 | |
| parent | cfc319833b5b359bf3bce99564dbac00af7925ac [diff] |
x86, mm: limit MAXMEM on 64-bit on 64-bit x86 the physical memory limit is controlled by the sparsemem bits - which are 44 bits right now. But MAXMEM (the max pfn number e820 parsing will allow to enter our sizing routines) is set to 0x00003fffffffffff, i.e. 46 bits - that's too large because it overlaps into the vmalloc range. So couple MAXMEM to MAX_PHYSMEM_BITS, and add a comment that the maximum of MAX_PHYSMEM_BITS is 45 bits. Signed-off-by: Ingo Molnar <mingo@elte.hu>