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arm/arm64: kvm: Set vcpu->cpu to -1 on vcpu_put

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The arch-generic KVM code expects the cpu field of a vcpu to be -1 if
the vcpu is no longer assigned to a cpu.  This is used for the optimized
make_all_cpus_request path and will be used by the vgic code to check
that no vcpus are running.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
This commit is contained in:
Christoffer Dall 2013-12-11 20:29:11 -08:00
parent 1006e8cb22
commit e9b152cb95
1 changed files with 7 additions and 0 deletions
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7
arch/arm/kvm/arm.c
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@ -342,6 +342,13 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
{ {
/*
* The arch-generic KVM code expects the cpu field of a vcpu to be -1
* if the vcpu is no longer assigned to a cpu. This is used for the
* optimized make_all_cpus_request path.
*/
vcpu->cpu = -1;
kvm_arm_set_running_vcpu(NULL); kvm_arm_set_running_vcpu(NULL);
} }