KVM: s390: implement KVM_(S|G)ET_MP_STATE for user space state control

This patch - adds s390 specific MP states to linux headers and documents them - implements the KVM_{SET,GET}_MP_STATE ioctls - enables KVM_CAP_MP_STATE - allows user space to control the VCPU state on s390. If user space sets the VCPU state using the ioctl KVM_SET_MP_STATE, we can disable manual changing of the VCPU state and trust user space to do the right thing.

David Hildenbrand committed 12 years ago

Commit 6352e4d1 parent 0b4820d7 files · +56 −8Browse files

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include/uapi/linux/kvm.h+4−0

@@ -407,6 +407,10 @@ struct kvm_vapic_addr { · 406 unmodified lines
407	407	#define KVM_MP_STATE_INIT_RECEIVED 2
408	408	#define KVM_MP_STATE_HALTED 3
409	409	#define KVM_MP_STATE_SIPI_RECEIVED 4
	410	+#define KVM_MP_STATE_STOPPED 5
	411	+#define KVM_MP_STATE_CHECK_STOP 6
	412	+#define KVM_MP_STATE_OPERATING 7
	413	+#define KVM_MP_STATE_LOAD 8
410	414
411	415	struct kvm_mp_state {
412	416	__u32 mp_state;