From: Daniel Henrique Barboza <danielhb...@gmail.com> Put in a more accessible place the reasoning behind our decision to officially drop KVM support in the powernv machine.
Signed-off-by: Daniel Henrique Barboza <danielhb...@gmail.com> Message-Id: <20211130133153.444601-3-danielhb...@gmail.com> Signed-off-by: Cédric Le Goater <c...@kaod.org> --- docs/system/ppc/powernv.rst | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/docs/system/ppc/powernv.rst b/docs/system/ppc/powernv.rst index edd45d1eaadd..c8f9762342d6 100644 --- a/docs/system/ppc/powernv.rst +++ b/docs/system/ppc/powernv.rst @@ -54,6 +54,19 @@ Prebuilt images of ``skiboot`` and ``skiroot`` are made available on the QEMU includes a prebuilt image of ``skiboot`` which is updated when a more recent version is required by the models. +Current acceleration status +--------------------------- + +KVM acceleration in Linux Power hosts is provided by the kvm-hv and +kvm-pr modules. kvm-hv is adherent to PAPR and it's not compliant with +powernv. kvm-pr in theory could be used as a valid accel option but +this isn't supported by kvm-pr at this moment. + +To spare users from dealing with not so informative errors when attempting +to use accel=kvm, the powernv machine will throw an error informing that +KVM is not supported. This can be revisited in the future if kvm-pr (or +any other KVM alternative) is usable as KVM accel for this machine. + Boot options ------------ -- 2.31.1
