On Wed, Jun 21, 2006 at 06:54:55PM -0700, keith mannthey wrote:
> Hello All,
> This patch converts the i386 summit subarch apicid_to_node to use node
> information provided by the SRAT. The current way of obtaining the
> nodeid
>
> static inline int apicid_to_node(int logical_apicid)
> {
> return logical_apicid >> 5;
> }
>
> is just not correct for all summit systems/bios. Assuming the apicid
> matches the Linux node number require a leap of faith that the bios lay-
> ed out the apicids a set way. Modern summit HW does not layout its bios
> in the manner for various reasons and is unable to boot i386 numa.
>
> The best way to get the correct apicid to node information is from the
> SRAT table.
Do all summit's have SRAT tables ?
I was under the impression the early ones were around before
the invention of SRAT.
Dave
--
http://www.codemonkey.org.uk
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