From: Vijaya Kumar K <vijaya.ku...@caviumnetworks.com>
Move vgic rank locking inside get_irq_priority callback.
LPIs does not have vgic rank lock for reading LPI priority.
So make generic vgic code cleaner.
Signed-off-by: Vijaya Kumar K <vijaya.ku...@caviumnetworks.com>
---
v7: - Updated commit message
---
xen/arch/arm/vgic-v2.c | 4 +++-
xen/arch/arm/vgic-v3.c | 4 +++-
xen/arch/arm/vgic.c | 3 ---
3 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/xen/arch/arm/vgic-v2.c b/xen/arch/arm/vgic-v2.c
index 524787b..600d27e 100644
--- a/xen/arch/arm/vgic-v2.c
+++ b/xen/arch/arm/vgic-v2.c
@@ -519,11 +519,13 @@ static struct vcpu *vgic_v2_get_target_vcpu(struct vcpu
*v, unsigned int irq)
static int vgic_v2_get_irq_priority(struct vcpu *v, unsigned int irq)
{
int priority;
+ unsigned long flags;
struct vgic_irq_rank *rank = vgic_rank_irq(v, irq);
- ASSERT(spin_is_locked(&rank->lock));
+ vgic_lock_rank(v, rank, flags);
priority = vgic_byte_read(rank->ipriority[REG_RANK_INDEX(8,
irq, DABT_WORD)], 0, irq & 0x3);
+ vgic_unlock_rank(v, rank, flags);
return priority;
}
diff --git a/xen/arch/arm/vgic-v3.c b/xen/arch/arm/vgic-v3.c
index 598f634..12c5d87 100644
--- a/xen/arch/arm/vgic-v3.c
+++ b/xen/arch/arm/vgic-v3.c
@@ -1096,11 +1096,13 @@ static const struct mmio_handler_ops
vgic_distr_mmio_handler = {
static int vgic_v3_get_irq_priority(struct vcpu *v, unsigned int irq)
{
int priority;
+ unsigned long flags;
struct vgic_irq_rank *rank = vgic_rank_irq(v, irq);
- ASSERT(spin_is_locked(&rank->lock));
+ vgic_lock_rank(v, rank, flags);
priority = vgic_byte_read(rank->ipriority[REG_RANK_INDEX(8,
irq, DABT_WORD)], 0, irq & 0x3);
+ vgic_unlock_rank(v, rank, flags);
return priority;
}
diff --git a/xen/arch/arm/vgic.c b/xen/arch/arm/vgic.c
index 80a8f4e..fb2a205 100644
--- a/xen/arch/arm/vgic.c
+++ b/xen/arch/arm/vgic.c
@@ -407,14 +407,11 @@ void vgic_clear_pending_irqs(struct vcpu *v)
void vgic_vcpu_inject_irq(struct vcpu *v, unsigned int virq)
{
uint8_t priority;
- struct vgic_irq_rank *rank = vgic_rank_irq(v, virq);
struct pending_irq *iter, *n = irq_to_pending(v, virq);
unsigned long flags;
bool_t running;
- vgic_lock_rank(v, rank, flags);
priority = v->domain->arch.vgic.handler->get_irq_priority(v, virq);
- vgic_unlock_rank(v, rank, flags);
spin_lock_irqsave(&v->arch.vgic.lock, flags);
--
1.7.9.5
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