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Hello. I'm a distro maintainer and was wondering about the efficacy of entropy daemons like haveged and jitterentropyd in qemu-kvm. One of the authors of haveged [0] pointed out if the hardware cycles counter is emulated and deterministic, and thus predictible. He therefore does not recommend using HAVEGE on those systems. Is this the case with KVM's counters? PS. I will be setting VM CPU settings to host-pass...

On Fri, Aug 10, 2018 at 08:33:00PM +0000, procmem wrote: > Hello. I'm a distro maintainer and was wondering about the efficacy of > entropy daemons like haveged and jitterentropyd in qemu-kvm. One of the > authors of haveged [0] pointed out if the hardware cycles counter is > emulated and deterministic, and thus predictible. He therefore does not > recommend using HAVEGE on those systems. Is this the case with KVM's > counters? > > PS. I will be settin...

Martin Kletzander: > On Fri, Aug 10, 2018 at 08:33:00PM +0000, procmem wrote: >> Hello. I'm a distro maintainer and was wondering about the efficacy of >> entropy daemons like haveged and jitterentropyd in qemu-kvm. One of the >> authors of haveged [0] pointed out if the hardware cycles counter is >> emulated and deterministic, and thus predictible. He therefore does not >> recommend using HAVEGE on those systems. Is this the case with KVM's >> counters? >> >...

On Fri, Aug 10, 2018 at 08:33:00PM +0000, procmem wrote: >Hello. I'm a distro maintainer and was wondering about the efficacy of >entropy daemons like haveged and jitterentropyd in qemu-kvm. One of the >authors of haveged [0] pointed out if the hardware cycles counter is >emulated and deterministic, and thus predictible. He therefore does not >recommend using HAVEGE on those systems. Is this the case with KVM's >counters? > I don't know the answer....