KVM: s390: Add support for machine checks.

Add support for injecting machine checks (only repressible
conditions for now).

This is a bit more involved than I/O interrupts, for these reasons:

- Machine checks come in both floating and cpu varieties.
- We don't have a bit for machine checks enabling, but have to use
  a roundabout approach with trapping PSW changing instructions and
  watching for opened machine checks.

Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index df6c0ad085aa..950c13ecaf60 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -97,10 +97,12 @@ static int handle_lctl(struct kvm_vcpu *vcpu)
 
 static const intercept_handler_t instruction_handlers[256] = {
         [0x01] = kvm_s390_handle_01,
+        [0x82] = kvm_s390_handle_lpsw,
         [0x83] = kvm_s390_handle_diag,
         [0xae] = kvm_s390_handle_sigp,
         [0xb2] = kvm_s390_handle_b2,
         [0xb7] = handle_lctl,
+        [0xb9] = kvm_s390_handle_b9,
         [0xe5] = kvm_s390_handle_e5,
         [0xeb] = handle_lctlg,
 };