From: Marc Zyngier <marc.zyngier@xxxxxxx>
Move the GICH_EISR access to its own function.
Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Reviewed-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
include/kvm/arm_vgic.h | 1 +
virt/kvm/arm/vgic.c | 25 +++++++++++++++++++++++--
2 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 38864f5..ccb9b59 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -86,6 +86,7 @@ struct vgic_ops {
void (*set_lr)(struct kvm_vcpu *, int, struct vgic_lr);
void (*sync_lr_elrsr)(struct kvm_vcpu *, int, struct vgic_lr);
u64 (*get_elrsr)(const struct kvm_vcpu *vcpu);
+ u64 (*get_eisr)(const struct kvm_vcpu *vcpu);
};
struct vgic_dist {
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 6dcc974..1e857e6 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -1036,11 +1036,26 @@ static u64 vgic_v2_get_elrsr(const struct kvm_vcpu *vcpu)
return val;
}
+static u64 vgic_v2_get_eisr(const struct kvm_vcpu *vcpu)
+{
+ u64 val;
+
+#if BITS_PER_LONG == 64
+ val = vcpu->arch.vgic_cpu.vgic_v2.vgic_eisr[1];
+ val <<= 32;
+ val |= vcpu->arch.vgic_cpu.vgic_v2.vgic_eisr[0];
+#else
+ val = *(u64 *)vcpu->arch.vgic_cpu.vgic_v2.vgic_eisr;
+#endif
+ return val;
+}
+
static const struct vgic_ops vgic_ops = {
.get_lr = vgic_v2_get_lr,
.set_lr = vgic_v2_set_lr,
.sync_lr_elrsr = vgic_v2_sync_lr_elrsr,
.get_elrsr = vgic_v2_get_elrsr,
+ .get_eisr = vgic_v2_get_eisr,
};
static struct vgic_lr vgic_get_lr(const struct kvm_vcpu *vcpu, int lr)
@@ -1065,6 +1080,11 @@ static inline u64 vgic_get_elrsr(struct kvm_vcpu *vcpu)
return vgic_ops.get_elrsr(vcpu);
}
+static inline u64 vgic_get_eisr(struct kvm_vcpu *vcpu)
+{
+ return vgic_ops.get_eisr(vcpu);
+}
+
static void vgic_retire_lr(int lr_nr, int irq, struct kvm_vcpu *vcpu)
{
struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
@@ -1271,10 +1291,11 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
* Some level interrupts have been EOIed. Clear their
* active bit.
*/
+ u64 eisr = vgic_get_eisr(vcpu);
+ unsigned long *eisr_ptr = (unsigned long *)&eisr;
int lr;
- for_each_set_bit(lr, (unsigned long *)vgic_cpu->vgic_v2.vgic_eisr,
- vgic_cpu->nr_lr) {
+ for_each_set_bit(lr, eisr_ptr, vgic_cpu->nr_lr) {
struct vgic_lr vlr = vgic_get_lr(vcpu, lr);
vgic_irq_clear_active(vcpu, vlr.irq);
--
2.0.0
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
