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Re: [PATCH v3 20/28] i8259.c: properly cascade secondary i8259 from primary i8259
- To: Mark Cave-Ayland <mark.caveayland@xxxxxxxxxxx>
- From: Peter Maydell <peter.maydell@xxxxxxxxxx>
- Date: Tue, 20 Oct 2026 17:25:47 +0100
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On Mon, 19 Oct 2026 at 13:07, Mark Cave-Ayland
<mark.caveayland@xxxxxxxxxxx> wrote:
>
> Currently the cascaded output from the secondary i8259 is returned directly in
> the pass_irqs[] array, instead of being connected to the relevant input of the
> primary i8259.
>
> This is a bug fix since in a cascaded configuration on real hardware it is
> possible (although unlikely) that the cascaded input from the secondary i8259
> can be masked on the primary i8259.
>
> Signed-off-by: Mark Cave-Ayland <mark.caveayland@xxxxxxxxxxx>
> ---
> hw/intc/i8259.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
Reviewed-by: Peter Maydell <peter.maydell@xxxxxxxxxx>
thanks
-- PMM
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