[PATCH v2 11/12] target/arm/kvm: spe: Enable userspace irqchip support.

[Haibo Xu]

Since the current kernel patches haven't enabled the
userspace irqchip support, this patch is not verified yet!

Signed-off-by: Haibo Xu <haibo...@linaro.org>
---
 linux-headers/linux/kvm.h | 1 +
 target/arm/kvm.c          | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
index 8840cbb01c..35ef0ae842 100644
--- a/linux-headers/linux/kvm.h
+++ b/linux-headers/linux/kvm.h
@@ -1672,6 +1672,7 @@ struct kvm_assigned_msix_entry {
 #define KVM_ARM_DEV_EL1_VTIMER         (1 << 0)
 #define KVM_ARM_DEV_EL1_PTIMER         (1 << 1)
 #define KVM_ARM_DEV_PMU                        (1 << 2)
+#define KVM_ARM_DEV_SPE                        (1 << 3)
 
 struct kvm_hyperv_eventfd {
        __u32 conn_id;
diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index 58f991e890..7950ff1d83 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -820,6 +820,11 @@ MemTxAttrs kvm_arch_post_run(CPUState *cs, struct kvm_run 
*run)
             switched_level &= ~KVM_ARM_DEV_PMU;
         }
 
+        if (switched_level & KVM_ARM_DEV_SPE) {
+            qemu_set_irq(cpu->spe_interrupt,
+                         !!(run->s.regs.device_irq_level & KVM_ARM_DEV_SPE));
+            switched_level &= ~KVM_ARM_DEV_SPE;
+        }
         if (switched_level) {
             qemu_log_mask(LOG_UNIMP, "%s: unhandled in-kernel device IRQ %x\n",
                           __func__, switched_level);
-- 
2.17.1