KVM: x86: drop KVM_PV_REASON_PAGE_READY case from kvm_handle_page_fault()
KVM guest code in Linux enables APF only when KVM_FEATURE_ASYNC_PF_INT is supported, this means we will never see KVM_PV_REASON_PAGE_READY when handling page fault vmexit in KVM. While on it, make sure we only follow genuine page fault path when APF reason is zero. If we happen to see something else this means that the underlying hypervisor is misbehaving. Leave WARN_ON_ONCE() to catch that. Signed-off-by: NVitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Showing
想要评论请 注册 或 登录