KVM: pending irq save/restore
Add in kernel irqchip save/restore support for pending vectors.
[avi: fix compile warning on i386]
[avi: remove printk]
Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Qing He <qing.he@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 7ec8cf8..6c371ea 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -790,6 +790,20 @@
return 0;
}
+static int vmx_get_irq(struct kvm_vcpu *vcpu)
+{
+ u32 idtv_info_field;
+
+ idtv_info_field = vmcs_read32(IDT_VECTORING_INFO_FIELD);
+ if (idtv_info_field & INTR_INFO_VALID_MASK) {
+ if (is_external_interrupt(idtv_info_field))
+ return idtv_info_field & VECTORING_INFO_VECTOR_MASK;
+ else
+ printk("pending exception: not handled yet\n");
+ }
+ return -1;
+}
+
static __init int cpu_has_kvm_support(void)
{
unsigned long ecx = cpuid_ecx(1);
@@ -2500,6 +2514,8 @@
.run = vmx_vcpu_run,
.skip_emulated_instruction = skip_emulated_instruction,
.patch_hypercall = vmx_patch_hypercall,
+ .get_irq = vmx_get_irq,
+ .set_irq = vmx_inject_irq,
};
static int __init vmx_init(void)