Re: [RFC PATCH v2 02/11] KVM: Introduce kvm_vcpu_has_run_once

From: Marc Zyngier
Date: Mon Nov 22 2021 - 11:27:20 EST


On Sat, 13 Nov 2021 01:22:25 +0000,
Raghavendra Rao Ananta <rananta@xxxxxxxxxx> wrote:
>
> Architectures such as arm64 and riscv uses vcpu variables
> such as has_run_once and ran_atleast_once, respectively,
> to mark if the vCPU has started running. Since these are
> architecture agnostic variables, introduce
> kvm_vcpu_has_run_once() as a core kvm functionality and
> use this instead of the architecture defined variables.
>
> No functional change intended.
>
> Signed-off-by: Raghavendra Rao Ananta <rananta@xxxxxxxxxx>

arm64 is moving away from this, see [1]. You also don't need any new
state, as vcpu->pid gives you exactly what you need.

Happy to queue additional patches on top if you want to deal with
riscv.

Thanks,

M.

[1] https://lore.kernel.org/all/20211018211158.3050779-1-maz@xxxxxxxxxx/

--
Without deviation from the norm, progress is not possible.