Re: [Xen-devel] [PATCH v3 04/62] arm/acpi: Emulate io ports for arm

[Arnd Bergmann <arnd@xxxxxxxx>]

On Tuesday 17 November 2015 17:40:03 shannon.zhao@xxxxxxxxxx wrote:
> +/*
> + * Emulate x86 io ports for arm.
> + */
> +#define __armio(addr) ( (void __iomem *)addr )
> +
> +#define inb(c) ( readb( __armio(c) ) )
> +#define inw(c) ( readw( __armio(c) ) )
> +#define inl(c) ( readl( __armio(c) ) )
> +
> +#define outb(v, c) ( writeb(v, __armio(c) ) )
> +#define outw(v, c) ( writew(v, __armio(c) ) )
> +#define outl(v, c) ( writel(v, __armio(c) ) )
> +

This is almost certainly wrong. There might be I/O port accesses, but they
won't be in the same place as normal pointers.

        Arnd

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