Messages in this thread | | | Date | Thu, 19 Jun 2008 10:39:16 -0700 | From | "Yinghai Lu" <> | Subject | Re: [PATCH] x86: let MPS support selectable |
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On Thu, Jun 19, 2008 at 8:10 AM, Maciej W. Rozycki <macro@linux-mips.org> wrote: > On Thu, 19 Jun 2008, Yinghai Lu wrote: > >> @@ -233,6 +233,19 @@ config SMP >> >> If you don't know what to do here, say N. >> >> +config X86_FIND_SMP_CONFIG >> + def_bool y >> + depends on X86_MPPARSE || X86_VOYAGER || X86_VISWS >> + depends on X86_32 >> + >> +config X86_MPPARSE >> + def_bool y >> + bool "Enable MPS table" >> + depends on (X86_32 && (X86_LOCAL_APIC && !X86_VISWS)) || X86_64 >> + help >> + For old smp systems that do not have proper acpi support. Newer systems >> + (esp with 64bit cpus) with acpi support, MADT and DSDT will override it >> + >> choice >> prompt "Subarchitecture Type" >> default X86_PC > > First of all you want to make sure at least one of ACPI and X86_MPPARSE > is enabled if X86_LOCAL_APIC or you risk a known-broken kernel > configuration, e.g. SMP which has no slightest chance to work. > > Personally I'd be happy to see CONFIG_ACPI_BOOT we used to have at one > point back just so that you can use ACPI tables to run an SMP system > without the need to pull all the power management stuff. Useful if the MP > table is broken beyond recovery. I am assuming it has been removed for a > reason though.
thanks. will try to add CONFIG_ACPI_BOOT...
YH
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