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| author | Christoffer Dall <christoffer.dall@linaro.org> | 2014-12-09 14:30:36 +0100 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2014-12-13 14:17:10 +0100 |
| commit | 1f57be289571d514b9412da2af25a64a81b8dd89 (patch) | |
| tree | b851906151ac595f69d762d87b116a7bba781a23 /virt | |
| parent | c52edf5f8caff878afc93c1b1e9a3d9490a9932f (diff) | |
| download | linux-1f57be289571d514b9412da2af25a64a81b8dd89.tar.bz2 | |
arm/arm64: KVM: Add (new) vgic_initialized macro
Some code paths will need to check to see if the internal state of the
vgic has been initialized (such as when creating new VCPUs), so
introduce such a macro that checks the nr_cpus field which is set when
the vgic has been initialized.
Also set nr_cpus = 0 in kvm_vgic_destroy, because the error path in
vgic_init() will call this function, and code should never errornously
assume the vgic to be properly initialized after an error.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/arm/vgic.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 4edb2572ea9a..d862ea502167 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1780,6 +1780,7 @@ void kvm_vgic_destroy(struct kvm *kvm) dist->irq_spi_cpu = NULL; dist->irq_spi_target = NULL; dist->irq_pending_on_cpu = NULL; + dist->nr_cpus = 0; } /* @@ -1793,7 +1794,7 @@ static int vgic_init(struct kvm *kvm) int nr_cpus, nr_irqs; int ret, i, vcpu_id; - if (dist->nr_cpus) /* Already allocated */ + if (vgic_initialized(kvm)) return 0; nr_cpus = dist->nr_cpus = atomic_read(&kvm->online_vcpus); |