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KVM: pending irq save/restore

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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>
This commit is contained in:
Eddie Dong
2007-08-06 16:29:07 +03:00
committed by Avi Kivity
parent 96ad2cc613
commit 2a8067f17b
4 changed files with 54 additions and 3 deletions
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16
drivers/kvm/vmx.c
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@@ -790,6 +790,20 @@ static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg)
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 @@ static struct kvm_arch_ops vmx_arch_ops = {
.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)