[U-Boot] [PATCH 14/20] x86: Provide access to the IDT

Bin Meng bmeng.cn at gmail.com
Tue Apr 28 10:16:58 CEST 2015


Hi Simon,

On Tue, Apr 28, 2015 at 6:48 AM, Simon Glass <sjg at chromium.org> wrote:
> Add a function to return the address of the Interrupt Descriptor Table.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
>  arch/x86/cpu/interrupts.c        | 5 +++++
>  arch/x86/include/asm/interrupt.h | 2 ++
>  2 files changed, 7 insertions(+)
>
> diff --git a/arch/x86/cpu/interrupts.c b/arch/x86/cpu/interrupts.c
> index a21d2a6..c777d36 100644
> --- a/arch/x86/cpu/interrupts.c
> +++ b/arch/x86/cpu/interrupts.c
> @@ -147,6 +147,11 @@ int cpu_init_interrupts(void)
>         return 0;
>  }
>
> +void *x86_get_idt(void)
> +{
> +       return &idt_ptr;
> +}
> +

idt_ptr is not declared as static, so this is unneeded? Or should we
change it to static?

>  void __do_irq(int irq)
>  {
>         printf("Unhandled IRQ : %d\n", irq);
> diff --git a/arch/x86/include/asm/interrupt.h b/arch/x86/include/asm/interrupt.h
> index 25abde7..0a75f89 100644
> --- a/arch/x86/include/asm/interrupt.h
> +++ b/arch/x86/include/asm/interrupt.h
> @@ -38,4 +38,6 @@ extern char exception_stack[];
>   */
>  void configure_irq_trigger(int int_num, bool is_level_triggered);
>
> +void *x86_get_idt(void);
> +
>  #endif
> --

Regards,
Bin


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