Re: [PATCH] KVM: PPC: Book3S HV P9: Use kvm_arch_vcpu_get_wait() to get rcuwait object
From: Michael Ellerman <hidden>
Date: 2021-12-15 00:45:19
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On Mon, 13 Dec 2021 17:45:56 +0000, Sean Christopherson wrote:
Use kvm_arch_vcpu_get_wait() to get a vCPU's rcuwait object instead of
using vcpu->wait directly in kvmhv_run_single_vcpu(). Functionally, this
is a nop as vcpu->arch.waitp is guaranteed to point at vcpu->wait. But
that is not obvious at first glance, and a future change coming in via
the KVM tree, commit 510958e99721 ("KVM: Force PPC to define its own
rcuwait object"), will hide vcpu->wait from architectures that define
__KVM_HAVE_ARCH_WQP to prevent generic KVM from attepting to wake a vCPU
with the wrong rcuwait object.
[...]
Applied to powerpc/next.
[1/1] KVM: PPC: Book3S HV P9: Use kvm_arch_vcpu_get_wait() to get rcuwait object
https://git.kernel.org/powerpc/c/63fa47ba886b86cbd58f03b3b01b04bd57a1f233
cheers