KVM: provide synchronous registers in kvm_run

[cascardo/linux.git] / include / linux / kvm.h

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 6cf048d..245bcb3 100644 (file)
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -279,6 +279,20 @@ struct kvm_run {
                /* Fix the size of the union. */
                char padding[256];
        };
+
+       /*
+        * shared registers between kvm and userspace.
+        * kvm_valid_regs specifies the register classes set by the host
+        * kvm_dirty_regs specified the register classes dirtied by userspace
+        * struct kvm_sync_regs is architecture specific, as well as the
+        * bits for kvm_valid_regs and kvm_dirty_regs
+        */
+       __u64 kvm_valid_regs;
+       __u64 kvm_dirty_regs;
+       union {
+               struct kvm_sync_regs regs;
+               char padding[1024];
+       } s;
 };
 
 /* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
@@ -570,6 +584,7 @@ struct kvm_ppc_pvinfo {
 #define KVM_CAP_S390_GMAP 71
 #define KVM_CAP_TSC_DEADLINE_TIMER 72
 #define KVM_CAP_S390_UCONTROL 73
+#define KVM_CAP_SYNC_REGS 74
 
 #ifdef KVM_CAP_IRQ_ROUTING