[Xen-devel] [PATCH] Updated Local APIC Initialization

["Natasha Jarymowycz" <natasha@xxxxxxxxxx>]

The attached patch apic.patch updates xen/arch/x86/apic.c so that
it is based on linux 2.6.10 code.  A few changes made to linux
required reworking functions in other files as well so I held off
on those changes.  For example, setup_APIC_timer(void *) changed
to setup_APIC_timer(unsigned int).  The change has no real bearing
on the Xen code -- it's just a question of how close to
linux one wants to be.  However, that change goes with a change to
smp_call_function which would affect quite a few other files/functions
so I left it as is.  Most of the other changes are trivial.
xen/ac_timer.h was included but not needed by apic.c so I removed
it from the list of #includes.

The new apic.c includes two new files: asm/io_ports.h and
asm/mach_apic.h.  Patches to create those files are included as well.

I tested the changes by booting xen on my machine.  "xm dmesg" showed
a trivial change to the cpu speed detected:

< (XEN) Detected 2992.616 MHz processor.
> (XEN) Detected 2992.596 MHz processor.
< (XEN) ..... CPU clock speed is 2992.5438 MHz.
> (XEN) ..... CPU speed is 2992.5282 MHz.

I also created a second domain where I created a large file with dd
and copied it over the "network" to domain 0.  There were no interrupt
error messages and nothing out of the ordinary occurred.

-Natasha

Signed-off-by: Natasha Jarymowycz <natasha@xxxxxxxxxx>

Attachment: apic.patch
Description: Binary data

Attachment: io_ports.patch
Description: Binary data

Attachment: mach_apic.patch
Description: Binary data

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