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KVM: arm/arm64: vgic: Make vgic_irq->irq_lock a raw_spinlock

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vgic_irq->irq_lock must always be taken with interrupts disabled as
it is used in interrupt context.

For configurations such as PREEMPT_RT_FULL, this means that it should
be a raw_spinlock since RT spinlocks are interruptible.

Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
This commit is contained in:
Julien Thierry
2019-01-07 15:06:15 +00:00
committed by Christoffer Dall
parent 49a57857ae
commit 8fa3adb8c6
10 changed files with 83 additions and 84 deletions
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2
include/kvm/arm_vgic.h
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@@ -100,7 +100,7 @@ enum vgic_irq_config {
};
struct vgic_irq {
spinlock_t irq_lock; /* Protects the content of the struct */
raw_spinlock_t irq_lock; /* Protects the content of the struct */
struct list_head lpi_list; /* Used to link all LPIs together */
struct list_head ap_list;