From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
The VMX implementation of enable_irq_window will raise
KVM_REQ_IMMEDIATE_EXIT if an interrupt window shall be opened during
nested vmrun. We have to transfer this request into the local variable
to avoid looping over a continuously re-asserted request on vmentry.
This issue only affects nested VMX scenarios.
Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
---
arch/x86/kvm/x86.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2a434bf..57ff14a 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5759,6 +5759,9 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
else if (kvm_cpu_has_injectable_intr(vcpu) || req_int_win)
kvm_x86_ops->enable_irq_window(vcpu);
+ req_immediate_exit =
+ kvm_check_request(KVM_REQ_IMMEDIATE_EXIT, vcpu);
+
if (kvm_lapic_enabled(vcpu)) {
/*
* Update architecture specific hints for APIC
--
1.7.3.4
--
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