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| author | Jan Beulich | 2005-09-12 18:49:24 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2005-09-12 19:50:57 +0200 |
| commit | 1a426cb76443f5b0a021a9df57d3446d14763c21 (patch) | |
| tree | 261e71e142f5978f60907a3e432d6eadd3cd2fb7 | |
| parent | [PATCH] x86-64: Remove unused vxtime.hz field (diff) | |
| download | kernel-qcow2-linux-1a426cb76443f5b0a021a9df57d3446d14763c21.tar.gz kernel-qcow2-linux-1a426cb76443f5b0a021a9df57d3446d14763c21.tar.xz kernel-qcow2-linux-1a426cb76443f5b0a021a9df57d3446d14763c21.zip | |
[PATCH] x86-64: Declare NMI_VECTOR and handle it in the IPI sending code.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | include/asm-x86_64/hw_irq.h | 1 | ||||
| -rw-r--r-- | include/asm-x86_64/ipi.h | 17 |
2 files changed, 15 insertions, 3 deletions
diff --git a/include/asm-x86_64/hw_irq.h b/include/asm-x86_64/hw_irq.h index d9212eb4e894..dc97668ea0f9 100644 --- a/include/asm-x86_64/hw_irq.h +++ b/include/asm-x86_64/hw_irq.h @@ -26,6 +26,7 @@ struct hw_interrupt_type; #endif +#define NMI_VECTOR 0x02 /* * IDT vectors usable for external interrupt sources start * at 0x20: diff --git a/include/asm-x86_64/ipi.h b/include/asm-x86_64/ipi.h index 7ba668f43c59..022e9d340ad7 100644 --- a/include/asm-x86_64/ipi.h +++ b/include/asm-x86_64/ipi.h @@ -31,9 +31,20 @@ static inline unsigned int __prepare_ICR (unsigned int shortcut, int vector, unsigned int dest) { - unsigned int icr = APIC_DM_FIXED | shortcut | vector | dest; - if (vector == KDB_VECTOR) - icr = (icr & (~APIC_VECTOR_MASK)) | APIC_DM_NMI; + unsigned int icr = shortcut | dest; + + switch (vector) { + default: + icr |= APIC_DM_FIXED | vector; + break; + case NMI_VECTOR: + /* + * Setup KDB IPI to be delivered as an NMI + */ + case KDB_VECTOR: + icr |= APIC_DM_NMI; + break; + } return icr; } |