Messages in this thread | | | Date | Fri, 05 Mar 2021 12:02:20 +0000 | From | Marc Zyngier <> | Subject | Re: [PATCH] KVM: arm64: Add big.LITTLE architecture support for vcpu |
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On Fri, 05 Mar 2021 10:34:25 +0000, Yejune Deng <yejune.deng@gmail.com> wrote: > > In big.LITTLE architecture,the application layer calls KVM_ARM_VCPU_INIT > several times.Sometimes the thread will run on the big core, sometimes > will run on the little core.The big core and the little core has always > different cpuid, but the init target is fixed. and that leads to > init->target != phys_target. So modify phys target from the current core > to all cpu online.
This is done on purpose, and it is userspace's responsibility to pin its vcpu threads to a certain type of CPUs if it cares at all.
Thanks,
M.
-- Without deviation from the norm, progress is not possible.
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