From 2fdef3a2ae01dfd928c4b42c5a3b76546170a74c Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky Date: Sun, 6 Jun 2021 11:10:44 +0900 Subject: kvm: add PM-notifier Add KVM PM-notifier so that architectures can have arch-specific VM suspend/resume routines. Such architectures need to select CONFIG_HAVE_KVM_PM_NOTIFIER and implement kvm_arch_pm_notifier(). Signed-off-by: Sergey Senozhatsky Acked-by: Marc Zyngier Message-Id: <20210606021045.14159-1-senozhatsky@chromium.org> Signed-off-by: Paolo Bonzini --- include/linux/kvm_host.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 11b9b11a5e9b..37cbb56ccd09 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -28,6 +28,7 @@ #include #include #include +#include #include #include @@ -594,6 +595,10 @@ struct kvm { pid_t userspace_pid; unsigned int max_halt_poll_ns; u32 dirty_ring_size; + +#ifdef CONFIG_HAVE_KVM_PM_NOTIFIER + struct notifier_block pm_notifier; +#endif }; #define kvm_err(fmt, ...) \ @@ -1007,6 +1012,10 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu); void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu); void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); +#ifdef CONFIG_HAVE_KVM_PM_NOTIFIER +int kvm_arch_pm_notifier(struct kvm *kvm, unsigned long state); +#endif + #ifdef __KVM_HAVE_ARCH_VCPU_DEBUGFS void kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu, struct dentry *debugfs_dentry); #endif -- cgit v1.2.3