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Re: [XEN PATCH] x86/hvm: make ACPI PM timer support optional

To: Sergiy Kibrik <Sergiy_Kibrik@xxxxxxxx>
From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Date: Mon, 16 Sep 2024 09:44:44 +0200
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
Delivery-date: Mon, 16 Sep 2024 07:44:48 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On Mon, Sep 16, 2024 at 09:37:57AM +0300, Sergiy Kibrik wrote:
> Introduce config option X86_PMTIMER so that pmtimer driver can be disabled on
> systems that don't need it.

Same comment as in the VGA patch, you need to handle the user passing
X86_EMU_PM.  It's not OK to just ignore the flag if the hypervisor is
built without ACPI PM timer support.

Regards, Roger.

Follow-Ups:
- Re: [XEN PATCH] x86/hvm: make ACPI PM timer support optional
  - From: Stefano Stabellini

References:
- [XEN PATCH] x86/hvm: make ACPI PM timer support optional
  - From: Sergiy Kibrik

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