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Re: [XEN PATCH] x86/hpet: Disable legacy replacement mode after IRQ test if not needed
- To: Simon Gaiser <simon@xxxxxxxxxxxxxxxxxxxxxx>
- From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Date: Tue, 18 Jul 2023 14:53:01 +0200
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- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 18 Jul 2023 12:53:22 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Tue, Jul 18, 2023 at 02:26:03PM +0200, Simon Gaiser wrote:
> As far as I understand the HPET legacy mode is not required on systems
> with ARAT after the timer IRQ test.
What's the relation with ARAT here?
It would seem to me that keeping legacy replacement enabled should
only be done when opt_hpet_legacy_replacement > 0, and the currently
modified block is already in a opt_hpet_legacy_replacement < 0 gated
chunk.
Thanks, Roger.
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