[Qemu-devel] [PATCH] KVM: x86: handle KVM_SET_VCPU_EVENTS/KVM_VCPUEVENT_VALID_SMM properly

[herongguang]

From: He Rongguang <herongguang...@huawei.com>

handle KVM_VCPUEVENT_VALID_SMM properly, or kvm-kmod/kernel will crash
in migration destination in gfn_to_rmap() since kvm_memslots_for_spte_role
is false, whilst (vcpu->arch.hflags & HF_SMM_MASK) is true

Signed-off-by: herongguang <herongguang...@huawei.com>
---
 arch/x86/kvm/x86.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 699f872..7ebcb59 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3028,6 +3028,7 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct 
kvm_vcpu *vcpu,
                        else
                                clear_bit(KVM_APIC_INIT, 
&vcpu->arch.apic->pending_events);
                }
+               kvm_mmu_reset_context(vcpu);
        }
 
        kvm_make_request(KVM_REQ_EVENT, vcpu);
-- 
1.8.3.4