x64, x2apic/intr-remap: add x2apic support, including enabling interrupt-remapping

[safe/jmp/linux-2.6] / arch / x86 / kernel / setup.c

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 987b6fd..2e78a14 100644 (file)
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -730,6 +730,8 @@ void __init setup_arch(char **cmdline_p)
        num_physpages = max_pfn;
 
        check_efer();
+       if (cpu_has_x2apic)
+               check_x2apic();
 
        /* How many end-of-memory variables you have, grandma! */
        /* need this before calling reserve_initrd */