* Yang Zhang <[email protected]> wrote:
> diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
> index 6e03b0d..2329a54 100644
> --- a/arch/x86/kernel/irqinit.c
> +++ b/arch/x86/kernel/irqinit.c
> @@ -205,6 +205,10 @@ static void __init apic_intr_init(void)
>
> /* IPI for X86 platform specific use */
> alloc_intr_gate(X86_PLATFORM_IPI_VECTOR, x86_platform_ipi);
> +#ifdef CONFIG_HAVE_KVM
> + /* IPI for KVM to deliver posted interrupt */
> + alloc_intr_gate(POSTED_INTR_VECTOR, kvm_posted_intr_ipi);
> +#endif
Please avoid wasting an IDT entry by reusing x86_platform_ipi.
A KVM guest is in essence one type of 'x86 platform', and this callback is used
by
hardware platforms, so collision is not an issue AFAICS.
Thanks,
Ingo
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