diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kvm.h | 12 | ||||
| -rw-r--r-- | include/linux/kvm_host.h | 5 |
2 files changed, 15 insertions, 2 deletions
diff --git a/include/linux/kvm.h b/include/linux/kvm.h index d808694673f9..0a6d6ba44c85 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -625,6 +625,7 @@ struct kvm_ppc_smmu_info { #ifdef __KVM_HAVE_READONLY_MEM #define KVM_CAP_READONLY_MEM 81 #endif +#define KVM_CAP_IRQFD_RESAMPLE 82 #ifdef KVM_CAP_IRQ_ROUTING @@ -690,12 +691,21 @@ struct kvm_xen_hvm_config { #endif #define KVM_IRQFD_FLAG_DEASSIGN (1 << 0) +/* + * Available with KVM_CAP_IRQFD_RESAMPLE + * + * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies + * the irqfd to operate in resampling mode for level triggered interrupt + * emlation. See Documentation/virtual/kvm/api.txt. + */ +#define KVM_IRQFD_FLAG_RESAMPLE (1 << 1) struct kvm_irqfd { __u32 fd; __u32 gsi; __u32 flags; - __u8 pad[20]; + __u32 resamplefd; + __u8 pad[16]; }; struct kvm_clock_data { diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 80bfc880921e..2850656e2e96 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -119,7 +119,8 @@ static inline bool is_error_page(struct page *page) #define KVM_REQ_PMU 16 #define KVM_REQ_PMI 17 -#define KVM_USERSPACE_IRQ_SOURCE_ID 0 +#define KVM_USERSPACE_IRQ_SOURCE_ID 0 +#define KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID 1 struct kvm; struct kvm_vcpu; @@ -343,6 +344,8 @@ struct kvm { struct { spinlock_t lock; struct list_head items; + struct list_head resampler_list; + struct mutex resampler_lock; } irqfds; struct list_head ioeventfds; #endif |