Re: [CFT] kexec syscall for 2.5.43 (linux booting linux)

[Kasper Dupont <kasperd@daimi.au.dk>]

"Eric W. Biederman" wrote:
> 
> +static void i8259A_remove(struct device *dev)
> +{
> +       /* Restore the i8259A to it's legacy dos setup.
> +        * The kernel won't be using it any more, and it
> +        * just might make reboots, and kexec type applications
> +        * more stable.
> +        */
> +       outb(0xff, 0x21);       /* mask all of 8259A-1 */
> +       outb(0xff, 0xA1);       /* mask all of 8259A-1 */
> +
> +       outb_p(0x11, 0x20);     /* ICW1: select 8259A-1 init */
> +       outb_p(0x08, 0x21);     /* ICW2: 8259A-1 IR0-7 mappend to 0x8-0xf */
> +       outb_p(0x01, 0x21);     /* Normal 8086 auto EOI mode */
> +
> +       outb_p(0x11, 0xA0);     /* ICW1: select 8259A-2 init */
> +       outb_p(0x08, 0xA1);     /* ICW2: 8259A-2 IR0-7 mappend to 0x70-0x77 */
                 ^^^^                                               ^^^^

This looks wrong to me.

-- 
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