From: Cornelia Huck <cornelia.huck@xxxxxxxxxx>
Handle the mandatory intercept SET CLOCK PROGRAMMABLE FIELD
instruction.
Signed-off-by: Cornelia Huck <cornelia.huck@xxxxxxxxxx>
---
arch/s390/kvm/intercept.c | 1 +
arch/s390/kvm/kvm-s390.h | 1 +
arch/s390/kvm/priv.c | 31 +++++++++++++++++++++++++++++++
3 files changed, 33 insertions(+)
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 3614565..979cbe5 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -101,6 +101,7 @@ static int handle_lctl(struct kvm_vcpu *vcpu)
}
static intercept_handler_t instruction_handlers[256] = {
+ [0x01] = kvm_s390_handle_01,
[0x83] = kvm_s390_handle_diag,
[0xae] = kvm_s390_handle_sigp,
[0xb2] = kvm_s390_handle_b2,
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index ff28f9d..2294377 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -79,6 +79,7 @@ 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);
int kvm_s390_handle_e5(struct kvm_vcpu *vcpu);
+int kvm_s390_handle_01(struct kvm_vcpu *vcpu);
/* implemented in sigp.c */
int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu);
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index e5a45db..68a6b2e 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -380,3 +380,34 @@ int kvm_s390_handle_e5(struct kvm_vcpu *vcpu)
return -EOPNOTSUPP;
}
+static int handle_sckpf(struct kvm_vcpu *vcpu)
+{
+ u32 value;
+
+ if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
+ return kvm_s390_inject_program_int(vcpu,
+ PGM_PRIVILEGED_OPERATION);
+
+ if (vcpu->run->s.regs.gprs[0] & 0x00000000ffff0000)
+ return kvm_s390_inject_program_int(vcpu,
+ PGM_SPECIFICATION);
+
+ value = vcpu->run->s.regs.gprs[0] & 0x000000000000ffff;
+ vcpu->arch.sie_block->todpr = value;
+
+ return 0;
+}
+
+static intercept_handler_t x01_handlers[256] = {
+ [0x07] = handle_sckpf,
+};
+
+int kvm_s390_handle_01(struct kvm_vcpu *vcpu)
+{
+ intercept_handler_t handler;
+
+ handler = x01_handlers[vcpu->arch.sie_block->ipa & 0x00ff];
+ if (handler)
+ return handler(vcpu);
+ return -EOPNOTSUPP;
+}
--
1.7.9.6
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