[SeaBIOS] int 1589 test case?
Sebastian Herbszt
herbszt at gmx.de
Sun Jan 10 16:22:09 CET 2010
Kevin O'Connor wrote:
> On Mon, Jan 04, 2010 at 08:54:48PM -0500, Kevin O'Connor wrote:
>> On SeaBIOS, I too get "Protected mode has been entered !" followed by
>> a call into resume with a shutdown code of "5". The code then hangs -
>> probably because I also used freedos.
>
> Interestingly, if I apply this change:
>
> --- a/src/resume.c
> +++ b/src/resume.c
> @@ -29,6 +29,9 @@ void VISIBLE16
> handle_resume(u8 status)
> {
> init_dma();
> + pic_setup();
> + asm volatile("lgdtw %cs:rombios32_gdt_48");
> + asm volatile("lidtw %cs:rmode_IDT_info");
>
> debug_serial_setup();
> dprintf(1, "In resume (status=%d)\n", status);
>
> then FreeDOS is able to resume (I see irqs working). However, the
> screen is still stuck under qemu - not sure why.
The test program sets shutdown status to 05h. Bochs BIOS has this bug filed
"shtudown/reset type 05 should reinit the PICs" [1].
[1] http://sourceforge.net/tracker/?func=detail&aid=2734455&group_id=12580&atid=112580
- Sebastian
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