KVM: arm64: Simplify the CPUHP logic

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For a number of historical reasons, the KVM/arm64 hotplug setup is pretty
complicated, and we have two extra CPUHP notifiers for vGIC and timers.

It looks pretty pointless, and gets in the way of further changes.
So let's just expose some helpers that can be called from the core
CPUHP callback, and get rid of everything else.

This gives us the opportunity to drop a useless notifier entry,
as well as tidy-up the timer enable/disable, which was a bit odd.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20221130230934.1014142-17-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

This commit is contained in:

Marc Zyngier 2022-11-30 23:09:00 +00:00 • committed by Paolo Bonzini

parent 3af4a9e61e

commit 466d27e48d

6 changed files with 33 additions and 37 deletions

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27

arch/arm64/kvm/arch_timer.c

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13

arch/arm64/kvm/arm.c

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19

arch/arm64/kvm/vgic/vgic-init.c

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4

include/kvm/arm_arch_timer.h

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4

include/kvm/arm_vgic.h

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3

include/linux/cpuhotplug.h

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