x86/apic: Add max_apic_id member

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There is really no point to have a callback which compares numbers.

Add a field which allows each APIC to store the maximum APIC ID supported
and fill it in for all APIC incarnations.

The next step will remove the callback.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Sohil Mehta <sohil.mehta@intel.com>
Tested-by: Juergen Gross <jgross@suse.com> # Xen PV (dom0 and unpriv. guest)

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This commit is contained in:

Thomas Gleixner 2023-08-08 15:04:10 -07:00 • committed by Dave Hansen

parent 9132d720eb

commit d92e5e7cf5

10 changed files with 14 additions and 0 deletions

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3

arch/x86/include/asm/apic.h

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arch/x86/kernel/apic/apic_flat_64.c

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arch/x86/kernel/apic/apic_noop.c

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arch/x86/kernel/apic/apic_numachip.c

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arch/x86/kernel/apic/bigsmp_32.c

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arch/x86/kernel/apic/probe_32.c

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arch/x86/kernel/apic/x2apic_cluster.c

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arch/x86/kernel/apic/x2apic_phys.c

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arch/x86/kernel/apic/x2apic_uv_x.c

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arch/x86/xen/apic.c

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