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RHEL: Don't build KVM PR module on ppc64

David Gibson (Red Hat) requested to merge rhdgibson/kernel-ark:rhel9/bz1930649 into os-build

We're removing support for KVM on POWER in RHEL9. However, we're leaving the KVM module enabled to allow for certain internal test scenarious. This will also make life easier for possible IBM and/or community supported efforts.

However, we only want to enable the KVM HV implementation, not the KVM PR implementation. The latter is very slow, quite buggy on POWER9 and later CPUs and generally just causes confusion. It's been disabled for a long time in RHEL8 already (by 4e54d8b3cd8 "[redhat]powerpc64: disable kvm-pr").

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1930649 Upstream Status: RHEL only

Signed-off-by: David Gibson dgibson@redhat.com

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