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| author | Marc Zyngier <marc.zyngier@arm.com> | 2017-10-27 15:28:39 +0100 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2017-11-10 09:28:52 +0100 |
| commit | 196b136498b35f1cd787b84465f235e69dbc757c (patch) | |
| tree | 23890d9f31732cfb18203945c3bcb80ca52699fb /virt/kvm/arm/arm.c | |
| parent | 74fe55dc9ab77142e3c4783ecc5b87d494164452 (diff) | |
| download | lwn-196b136498b35f1cd787b84465f235e69dbc757c.tar.gz lwn-196b136498b35f1cd787b84465f235e69dbc757c.zip | |
KVM: arm/arm64: GICv4: Wire mapping/unmapping of VLPIs in VFIO irq bypass
Let's use the irq bypass mechanism also used for x86 posted interrupts
to intercept the virtual PCIe endpoint configuration and establish our
LPI->VLPI mapping.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt/kvm/arm/arm.c')
| -rw-r--r-- | virt/kvm/arm/arm.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index e1e947fe9bc2..34a15c0c65ab 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -1471,7 +1471,8 @@ int kvm_arch_irq_bypass_add_producer(struct irq_bypass_consumer *cons, struct kvm_kernel_irqfd *irqfd = container_of(cons, struct kvm_kernel_irqfd, consumer); - return 0; + return kvm_vgic_v4_set_forwarding(irqfd->kvm, prod->irq, + &irqfd->irq_entry); } void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons, struct irq_bypass_producer *prod) @@ -1479,7 +1480,8 @@ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons, struct kvm_kernel_irqfd *irqfd = container_of(cons, struct kvm_kernel_irqfd, consumer); - return; + kvm_vgic_v4_unset_forwarding(irqfd->kvm, prod->irq, + &irqfd->irq_entry); } void kvm_arch_irq_bypass_stop(struct irq_bypass_consumer *cons) |