Messages in this thread | | | Subject | Re: [PATCH] x86: Reserve legacy VGA MMIO area for x86_64 as well as x86_32 | From | Guenter Roeck <> | Date | Fri, 9 Apr 2010 11:55:57 -0700 |
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On Fri, 2010-04-09 at 14:23 -0400, H. Peter Anvin wrote: > [Adding Guenter Roeck as he was commenting on something writing to the > VGA area...] > > On 04/09/2010 10:22 AM, Yinghai wrote: > > > > then please check this one > > > > update e820 at first, and later put them resource tree, but give pci BAR chance to claim > > the range, before assign unassigned resources. > > > > in case some system doesn't have VGA, and use [0xa0000, ..] for mmio of some other pci devices. > > > > Do we have any evidence of any such system? > > Either which way, the patch looks saner... > Yes, we have a system which does not have VGA and uses the VGA memory space for another device. I don't know exactly what for, but I can find out if it is relevant.
Guenter
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