Messages in this thread |  | | | Date | Tue, 26 Feb 2008 08:24:52 +0100 | | From | Ingo Molnar <> | | Subject | Re: [PATCH] x86_64: force re setting the mmconf for fam10h if acpi=off | |
* Yinghai Lu <Yinghai.Lu@Sun.COM> wrote:
> some BIOS only let AMD fam 10h handle bus0, and nvidia mcp55/ck804 to
> handle other buses. at that case MCFG will cover all over them.
>
> but with acpi=off, we can not use MCFG. this patch will double check
> the busnbits, and if it is less handling 256 bues, and acpi=off will
> forcely reset the mmconf in msr, so we still use mmconf in above case.
thanks, applied.
> @@ -720,14 +720,21 @@ static void __cpuinit fam10h_check_enabl
btw., a cleanliness suggestion: wouldnt it be cleaner to separate all
the extra AMD family 16 code into a separate file? That should make it
more focused and more isolated as well.
Ingo
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