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x2apic/intr-remap: decouple interrupt remapping from x2apic

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interrupt remapping must be enabled before enabling x2apic, but
interrupt remapping doesn't depend on x2apic, it can be used
separately. Enable interrupt remapping in init_dmars even x2apic
is not supported.

[dwmw2: Update Kconfig accordingly, fix build with INTR_REMAP && !X2APIC]

Signed-off-by: Weidong Han <weidong.han@intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Han, Weidong
2009-04-03 17:15:50 +08:00
committed by David Woodhouse
parent 34aaaa948e
commit d0b03bd1c6
4 changed files with 35 additions and 8 deletions
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3
arch/x86/include/asm/apic.h
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@@ -107,11 +107,10 @@ extern u32 native_safe_apic_wait_icr_idle(void);
extern void native_apic_icr_write(u32 low, u32 id);
extern u64 native_apic_icr_read(void);
#ifdef CONFIG_X86_X2APIC
#define EIM_8BIT_APIC_ID 0
#define EIM_32BIT_APIC_ID 1
#ifdef CONFIG_X86_X2APIC
/*
* Make previous memory operations globally visible before
* sending the IPI through x2apic wrmsr. We need a serializing instruction or