From fa63030e9c79e37b4d4e63b39ffb09cfb7aa0fe4 Mon Sep 17 00:00:00 2001 From: Daniel J Blueman Date: Wed, 14 Mar 2012 15:17:34 +0800 Subject: x86/platform: Move APIC ID validity check into platform APIC code Move APIC ID validity check into platform APIC code, so it can be overridden when needed. For NumaChip systems, always trust MADT, as it's constructed with high APIC IDs. Behaviour verifies on standard x86 systems and on NumaChip systems with this, and compile-tested with allyesconfig. Signed-off-by: Daniel J Blueman Reviewed-by: Steffen Persvold Cc: Yinghai Lu Cc: H. Peter Anvin Cc: Suresh Siddha Link: http://lkml.kernel.org/r/1331709454-27966-1-git-send-email-daniel@numascale-asia.com Signed-off-by: Ingo Molnar --- arch/x86/include/asm/apic.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/x86/include/asm/apic.h') diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index 3ab9bdd87e79..a9371c91718c 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -288,6 +288,7 @@ struct apic { int (*probe)(void); int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id); + int (*apic_id_valid)(int apicid); int (*apic_id_registered)(void); u32 irq_delivery_mode; @@ -532,6 +533,11 @@ static inline unsigned int read_apic_id(void) return apic->get_apic_id(reg); } +static inline int default_apic_id_valid(int apicid) +{ + return x2apic_mode || (apicid < 255); +} + extern void default_setup_apic_routing(void); extern struct apic apic_noop; -- cgit v1.2.3