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[RFC,v6,13/16] kvm: introduce kvm_arch_halt_guest and kvm_arch_resume_guest

Message ID 1428928171-18884-14-git-send-email-eric.auger@linaro.org
State New
Headers show

Commit Message

Auger Eric April 13, 2015, 12:29 p.m. UTC 
This API allows to
- exit the guest and avoid re-entering it
- resume the guest execution

Signed-off-by: Eric Auger <eric.auger@linaro.org>
---
 include/linux/kvm_host.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ae9c720..f4e1829 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1053,6 +1053,18 @@  extern struct kvm_device_ops kvm_xics_ops;
 extern struct kvm_device_ops kvm_arm_vgic_v2_ops;
 extern struct kvm_device_ops kvm_arm_vgic_v3_ops;
 
+#ifdef __KVM_HAVE_ARCH_HALT_GUEST
+
+void kvm_arch_halt_guest(struct kvm *kvm);
+void kvm_arch_resume_guest(struct kvm *kvm);
+
+#else
+
+inline void kvm_arch_halt_guest(struct kvm *kvm) {}
+inline void kvm_arch_resume_guest(struct kvm *kvm) {}
+
+#endif
+
 #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
 
 static inline void kvm_vcpu_set_in_spin_loop(struct kvm_vcpu *vcpu, bool val)