KVM: Move wiping of the kvm->vcpus array to common code

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All architectures have similar loops iterating over the vcpus,
freeing one vcpu at a time, and eventually wiping the reference
off the vcpus array. They are also inconsistently taking
the kvm->lock mutex when wiping the references from the array.

Make this code common, which will simplify further changes.
The locking is dropped altogether, as this should only be called
when there is no further references on the kvm structure.

Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Message-Id: <20211116160403.4074052-2-maz@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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This commit is contained in:

Marc Zyngier 2021-11-16 16:03:57 +00:00 • committed by Paolo Bonzini

parent dc1ce45575

commit 27592ae8db

8 changed files with 22 additions and 75 deletions

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10

arch/arm64/kvm/arm.c

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21

arch/mips/kvm/mips.c

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10

arch/powerpc/kvm/powerpc.c

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10

arch/riscv/kvm/vm.c

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18

arch/s390/kvm/kvm-s390.c

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9

arch/x86/kvm/x86.c

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2

include/linux/kvm_host.h

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17

virt/kvm/kvm_main.c

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