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Merge branch kvm-arm64/dirty-log-ordered into kvmarm-master/next
* kvm-arm64/dirty-log-ordered: : . : Retrofit some ordering into the existing API dirty-ring by: : : - relying on acquire/release semantics which are the default on x86, : but need to be explicit on arm64 : : - adding a new capability that indicate which flavor is supported, either : with explicit ordering (arm64) or both implicit and explicit (x86), : as suggested by Paolo at KVM Forum : : - documenting the requirements for this new capability on weakly ordered : architectures : : - updating the selftests to do the right thing : . KVM: selftests: dirty-log: Use KVM_CAP_DIRTY_LOG_RING_ACQ_REL if available KVM: selftests: dirty-log: Upgrade flag accesses to acquire/release semantics KVM: Document weakly ordered architecture requirements for dirty ring KVM: x86: Select CONFIG_HAVE_KVM_DIRTY_RING_ACQ_REL KVM: Add KVM_CAP_DIRTY_LOG_RING_ACQ_REL capability and config option KVM: Use acquire/release semantics when accessing dirty ring GFN state Signed-off-by: Marc Zyngier <maz@kernel.org>
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