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KVM: PPC: Book3S HV P9: Clear vcpu cpu fields before enabling host irqs
On guest entry, vcpu->cpu and vcpu->arch.thread_cpu are set after disabling host irqs. On guest exit there is a window whre tick time accounting briefly enables irqs before these fields are cleared. Move them up to ensure they are cleared before host irqs are run. This is possibly not a problem, but is more symmetric and makes the fields less surprising. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220908132545.4085849-1-npiggin@gmail.com
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