Andrew Murray eb41238cf1
arm64: KVM: Add accessors to track guest/host only counters ...
In order to effeciently switch events_{guest,host} perf counters at
guest entry/exit we add bitfields to kvm_cpu_context for guest and host
events as well as accessors for updating them.
A function is also provided which allows the PMU driver to determine
if a counter should start counting when it is enabled. With exclude_host,
we may only start counting when entering the guest.
Signed-off-by: Andrew Murray <andrew.murray@arm.com >
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com >
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eb41238cf1