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Re: [PATCH 19/22] i8259: move InterruptStatsProviderClass get_statistics() from i8259 to PIC
- To: Mark Cave-Ayland <mark.caveayland@xxxxxxxxxxx>
- From: Peter Maydell <peter.maydell@xxxxxxxxxx>
- Date: Tue, 13 Oct 2026 17:23:08 +0100
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- Cc: pbonzini@xxxxxxxxxx, richard.henderson@xxxxxxxxxx, mst@xxxxxxxxxx, sstabellini@xxxxxxxxxx, anthony@xxxxxxxxxxxxxx, edgar.iglesias@xxxxxxxxx, qemu-devel@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
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On Wed, 16 Sept 2026 at 11:50, Mark Cave-Ayland
<mark.caveayland@xxxxxxxxxxx> wrote:
>
> The internal i8259 implementation has workaround logic for storing interrupt
> statistics since these are currently recorded at the PIC level (i.e. for all
> 16 interrupt lines) whilst being stored in the master i8259 device which only
> has 8 physical interrupt lines.
>
> Move the get_statistics() implementation from the individual i8259 device to
> the containing PIC device in preparation for removing this hack. Note that
> this has a visible change to the "info pic" HMP monitor output since the named
> device displayed by "info irq" is now the PIC and not the individual i8259:
>
Reviewed-by: Peter Maydell <peter.maydell@xxxxxxxxxx>
thanks
-- PMM
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