• Jack Steiner's avatar
    x86: UV fix for global physical addresses · 189f67c4
    Jack Steiner authored
    Impact: fix UV boot crash
    
    This fixes a UV bug related to generating global memory addresses
    on partitioned systems. Partition systems do not have physical memory
    at address 0. Instead, a chunk of high memory is remapped by the chipset
    so that it appears to be at address 0. This remapping is INVISIBLE to most
    of the OS. The only OS functions that need to be aware of the remaping are
    functions that directly interface to the chipset. The GRU is one example.
    
    Also, delete a couple of unused macros related to global memory addresses.
    Signed-off-by: default avatarJack Steiner <steiner@sgi.com>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    189f67c4
uv_hub.h 11.5 KB