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Re: [XEN PATCH] x86/hvm: make ACPI PM timer support optional
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>
- From: Sergiy Kibrik <sergiy_kibrik@xxxxxxxx>
- Date: Thu, 3 Oct 2024 13:52:17 +0300
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Thu, 03 Oct 2024 10:52:33 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
30.09.24 14:33, Andrew Cooper:
Options are dependant on HVM option, because pmtimer & stdvga drivers
are part of HVM support code.
At the same time these options are allowed to be de-selected when PV/PVH
enabled, because only PV/PVH domains can be created when stdvga or
pmtimer are disabled
But PV != PVH.
Furthermore, be aware that there's no such thing as PVH in Xen. It's
toolstack level "branding" for want of a better term.
In Xen, there is PV (ring privileging) and HVM (hardware virt).
PVH is a toolstack level construct which passes a different set of
emulate flags, and doesn't set up qemu (on ioreq server 0) by default.
understood, then I won't complicate configuration by linking it with PV.
Thanks for explanation!
-Sergiy
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