Messages in this thread | | | Subject | Re: [PATCH -mm 2/4] x86_64 boot: Add linked list of struct setup_data | From | "Huang, Ying" <> | Date | Fri, 28 Mar 2008 10:09:41 +0800 |
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On Thu, 2008-03-27 at 06:33 -0500, Paul Jackson wrote: > Huang wrote: > +/* setup data types */ > +#define SETUP_NONE 0 > + > +/* extensible setup data list node */ > +struct setup_data { > + u64 next; > + u32 type; > + u32 len; > + u8 data[0]; > +}; > > > I don't understand what purpose the 'type' field serves.
The setup_data will not only be used for E820 extension. So a type field is used to distinguish various setup_data.
Best Regards, Huang Ying
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