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Jing Zhang
c3858335c7
Add a "blocking" stat that userspace can use to detect the case where a vCPU is not being run because of an vCPU/guest action, e.g. HLT or WFS on x86, WFI on arm64, etc... Current guest/host/halt stats don't show this well, e.g. if a guest halts for a long period of time then the vCPU could could appear pathologically blocked due to a host condition, when in reality the vCPU has been put into a not-runnable state by the guest. Originally-by: Cannon Matthews <[email protected]> Suggested-by: Sean Christopherson <[email protected]> Reviewed-by: David Matlack <[email protected]> Signed-off-by: Jing Zhang <[email protected]> [sean: renamed stat to "blocking", massaged changelog] Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>