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authorChristian Ehrhardt <ehrhardt@linux.vnet.ibm.com>2009-05-20 15:34:55 +0200
committerAvi Kivity <avi@redhat.com>2009-09-10 08:32:42 +0300
commit9ace903d171db7dc2fed96e44ac62b6f4c3ccb3d (patch)
tree50668cde71950831339d601a3bfeabe49657770e /arch/s390/kvm/kvm-s390.h
parent3032b925f00ba2653f7695d356d6f8284c82038d (diff)
downloadop-kernel-dev-9ace903d171db7dc2fed96e44ac62b6f4c3ccb3d.zip
op-kernel-dev-9ace903d171db7dc2fed96e44ac62b6f4c3ccb3d.tar.gz
KVM: s390: infrastructure to kick vcpus out of guest state
To ensure vcpu's come out of guest context in certain cases this patch adds a s390 specific way to kick them out of guest context. Currently it kicks them out to rerun the vcpu_run path in the s390 code, but the mechanism itself is expandable and with a new flag we could also add e.g. kicks to userspace etc. Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.h')
-rw-r--r--arch/s390/kvm/kvm-s390.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index 748fee8..2072cd4 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -20,6 +20,8 @@
typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu);
+/* negativ values are error codes, positive values for internal conditions */
+#define SIE_INTERCEPT_RERUNVCPU (1<<0)
int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu);
#define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\
@@ -50,6 +52,7 @@ int kvm_s390_inject_vm(struct kvm *kvm,
int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
struct kvm_s390_interrupt *s390int);
int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code);
+int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action);
/* implemented in priv.c */
int kvm_s390_handle_b2(struct kvm_vcpu *vcpu);
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