http://bugzilla.kernel.org/show_bug.cgi?id=13940
ykzhao <yakui.z...@intel.com> changed:
What |Removed |Added
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CC| |yakui.z...@intel.com
--- Comment #17 from ykzhao <yakui.z...@intel.com> 2009-08-31 13:21:43 ---
>From the dmesg log it seems that this issue is very interesting. And agree with
what Yu Linghai pointed in comment #13.
In the phase of dump pci conf register, we can get the IO/Memory base/limit for
0:1c.x/07:0.0/08:0.0 pci devices.
For example:
07:0.0: memory space: [0xf4500000-0xf4503fff]
IO space [0x3000-0x30ff]
But after the acpi is enabled, we can get the different IO/memory base/limit
for the above pci devices.
07:0.0: memory space: [0-0x3fff]
I/O space [0-0xff]
In such case OS will reallocate the memory space for the above pci devices.
Why will we get the different IO/MEM base for the same pci devices before and
after acpi is enabled?
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