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lguest: clean up lguest_init_IRQ

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Copy from arch/x86/kernel/irqinit_32.c: we don't use the vectors beyond
LGUEST_IRQS (if any), but we might as well set them all.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2009-06-12 22:26:59 -06:00
parent 56739c802c
commit 1028375e93
1 changed files with 4 additions and 5 deletions
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9
arch/x86/lguest/boot.c
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@ -628,13 +628,12 @@ static void __init lguest_init_IRQ(void)
{ {
unsigned int i; unsigned int i;
for (i = 0; i < LGUEST_IRQS; i++) { for (i = FIRST_EXTERNAL_VECTOR; i < NR_VECTORS; i++) {
int vector = FIRST_EXTERNAL_VECTOR + i;
/* Some systems map "vectors" to interrupts weirdly. Lguest has /* Some systems map "vectors" to interrupts weirdly. Lguest has
* a straightforward 1 to 1 mapping, so force that here. */ * a straightforward 1 to 1 mapping, so force that here. */
__get_cpu_var(vector_irq)[vector] = i; __get_cpu_var(vector_irq)[i] = i - FIRST_EXTERNAL_VECTOR;
if (vector != SYSCALL_VECTOR) if (i != SYSCALL_VECTOR)
set_intr_gate(vector, interrupt[i]); set_intr_gate(i, interrupt[i - FIRST_EXTERNAL_VECTOR]);
} }
/* This call is required to set up for 4k stacks, where we have /* This call is required to set up for 4k stacks, where we have
* separate stacks for hard and soft interrupts. */ * separate stacks for hard and soft interrupts. */