KVM: s390: allow injecting every kind of interrupt

Add a new data structure and function that allows to inject
all kinds of interrupt as defined in the PoP

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

3 files changed, 80 insertions, 7 deletions

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index b61ac418b510..90905ca93725 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -186,13 +186,58 @@ struct kvm_vcpu_stat {
         u32 diagnose_9c;
 };
 
-#define PGM_OPERATION            0x01
-#define PGM_PRIVILEGED_OP        0x02
-#define PGM_EXECUTE              0x03
-#define PGM_PROTECTION           0x04
-#define PGM_ADDRESSING           0x05
-#define PGM_SPECIFICATION        0x06
-#define PGM_DATA                 0x07
+#define PGM_OPERATION                   0x01
+#define PGM_PRIVILEGED_OP               0x02
+#define PGM_EXECUTE                     0x03
+#define PGM_PROTECTION                  0x04
+#define PGM_ADDRESSING                  0x05
+#define PGM_SPECIFICATION               0x06
+#define PGM_DATA                        0x07
+#define PGM_FIXED_POINT_OVERFLOW        0x08
+#define PGM_FIXED_POINT_DIVIDE          0x09
+#define PGM_DECIMAL_OVERFLOW            0x0a
+#define PGM_DECIMAL_DIVIDE              0x0b
+#define PGM_HFP_EXPONENT_OVERFLOW       0x0c
+#define PGM_HFP_EXPONENT_UNDERFLOW      0x0d
+#define PGM_HFP_SIGNIFICANCE            0x0e
+#define PGM_HFP_DIVIDE                  0x0f
+#define PGM_SEGMENT_TRANSLATION         0x10
+#define PGM_PAGE_TRANSLATION            0x11
+#define PGM_TRANSLATION_SPEC            0x12
+#define PGM_SPECIAL_OPERATION           0x13
+#define PGM_OPERAND                     0x15
+#define PGM_TRACE_TABEL                 0x16
+#define PGM_SPACE_SWITCH                0x1c
+#define PGM_HFP_SQUARE_ROOT             0x1d
+#define PGM_PC_TRANSLATION_SPEC         0x1f
+#define PGM_AFX_TRANSLATION             0x20
+#define PGM_ASX_TRANSLATION             0x21
+#define PGM_LX_TRANSLATION              0x22
+#define PGM_EX_TRANSLATION              0x23
+#define PGM_PRIMARY_AUTHORITY           0x24
+#define PGM_SECONDARY_AUTHORITY         0x25
+#define PGM_LFX_TRANSLATION             0x26
+#define PGM_LSX_TRANSLATION             0x27
+#define PGM_ALET_SPECIFICATION          0x28
+#define PGM_ALEN_TRANSLATION            0x29
+#define PGM_ALE_SEQUENCE                0x2a
+#define PGM_ASTE_VALIDITY               0x2b
+#define PGM_ASTE_SEQUENCE               0x2c
+#define PGM_EXTENDED_AUTHORITY          0x2d
+#define PGM_LSTE_SEQUENCE               0x2e
+#define PGM_ASTE_INSTANCE               0x2f
+#define PGM_STACK_FULL                  0x30
+#define PGM_STACK_EMPTY                 0x31
+#define PGM_STACK_SPECIFICATION         0x32
+#define PGM_STACK_TYPE                  0x33
+#define PGM_STACK_OPERATION             0x34
+#define PGM_ASCE_TYPE                   0x38
+#define PGM_REGION_FIRST_TRANS          0x39
+#define PGM_REGION_SECOND_TRANS         0x3a
+#define PGM_REGION_THIRD_TRANS          0x3b
+#define PGM_MONITOR                     0x40
+#define PGM_PER                         0x80
+#define PGM_CRYPTO_OPERATION            0x119
 
 struct kvm_s390_interrupt_info {
         struct list_head list;
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 200a8f9390b6..a44c68990cf4 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -660,6 +660,31 @@ int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code)
         return 0;
 }
 
+int kvm_s390_inject_prog_irq(struct kvm_vcpu *vcpu,
+                             struct kvm_s390_pgm_info *pgm_info)
+{
+        struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+        struct kvm_s390_interrupt_info *inti;
+
+        inti = kzalloc(sizeof(*inti), GFP_KERNEL);
+        if (!inti)
+                return -ENOMEM;
+
+        VCPU_EVENT(vcpu, 3, "inject: prog irq %d (from kernel)",
+                   pgm_info->code);
+        trace_kvm_s390_inject_vcpu(vcpu->vcpu_id, KVM_S390_PROGRAM_INT,
+                                   pgm_info->code, 0, 1);
+
+        inti->type = KVM_S390_PROGRAM_INT;
+        memcpy(&inti->pgm, pgm_info, sizeof(inti->pgm));
+        spin_lock_bh(&li->lock);
+        list_add(&inti->list, &li->list);
+        atomic_set(&li->active, 1);
+        BUG_ON(waitqueue_active(li->wq));
+        spin_unlock_bh(&li->lock);
+        return 0;
+}
+
 struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm,
                                                     u64 cr6, u64 schid)
 {
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index 460ccd828bbb..25a8b8478918 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -165,6 +165,9 @@ bool kvm_s390_cmma_enabled(struct kvm *kvm);
 
 /* implemented in diag.c */
 int kvm_s390_handle_diag(struct kvm_vcpu *vcpu);
+/* implemented in interrupt.c */
+int kvm_s390_inject_prog_irq(struct kvm_vcpu *vcpu,
+                             struct kvm_s390_pgm_info *pgm_info);
 
 /* implemented in interrupt.c */
 int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);