Merge tag 'kvm-s390-next-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

KVM: s390: cleanups for 5.7

- mark sie control block as 512 byte aligned
- use fallthrough;

5 files changed, 20 insertions, 17 deletions

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 61115913a2c7..d6bcd34f3ec3 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -344,7 +344,7 @@ struct kvm_s390_sie_block {
 	__u64	itdba;			/* 0x01e8 */
 	__u64   riccbd;			/* 0x01f0 */
 	__u64	gvrd;			/* 0x01f8 */
-} __attribute__((packed));
+} __packed __aligned(512);
 
 struct kvm_s390_itdb {
 	__u8	data[256];
diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index 07d30ffcfa41..47a67a958107 100644
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -505,7 +505,7 @@ static int trans_exc(struct kvm_vcpu *vcpu, int code, unsigned long gva,
 		switch (prot) {
 		case PROT_TYPE_IEP:
 			tec->b61 = 1;
-			/* FALL THROUGH */
+			fallthrough;
 		case PROT_TYPE_LA:
 			tec->b56 = 1;
 			break;
@@ -514,12 +514,12 @@ static int trans_exc(struct kvm_vcpu *vcpu, int code, unsigned long gva,
 			break;
 		case PROT_TYPE_ALC:
 			tec->b60 = 1;
-			/* FALL THROUGH */
+			fallthrough;
 		case PROT_TYPE_DAT:
 			tec->b61 = 1;
 			break;
 		}
-		/* FALL THROUGH */
+		fallthrough;
 	case PGM_ASCE_TYPE:
 	case PGM_PAGE_TRANSLATION:
 	case PGM_REGION_FIRST_TRANS:
@@ -534,7 +534,7 @@ static int trans_exc(struct kvm_vcpu *vcpu, int code, unsigned long gva,
 		tec->addr = gva >> PAGE_SHIFT;
 		tec->fsi = mode == GACC_STORE ? FSI_STORE : FSI_FETCH;
 		tec->as = psw_bits(vcpu->arch.sie_block->gpsw).as;
-		/* FALL THROUGH */
+		fallthrough;
 	case PGM_ALEN_TRANSLATION:
 	case PGM_ALE_SEQUENCE:
 	case PGM_ASTE_VALIDITY:
@@ -677,7 +677,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
 			dat_protection |= rfte.p;
 		ptr = rfte.rto * PAGE_SIZE + vaddr.rsx * 8;
 	}
-		/* fallthrough */
+		fallthrough;
 	case ASCE_TYPE_REGION2: {
 		union region2_table_entry rste;
 
@@ -695,7 +695,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
 			dat_protection |= rste.p;
 		ptr = rste.rto * PAGE_SIZE + vaddr.rtx * 8;
 	}
-		/* fallthrough */
+		fallthrough;
 	case ASCE_TYPE_REGION3: {
 		union region3_table_entry rtte;
 
@@ -723,7 +723,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
 			dat_protection |= rtte.fc0.p;
 		ptr = rtte.fc0.sto * PAGE_SIZE + vaddr.sx * 8;
 	}
-		/* fallthrough */
+		fallthrough;
 	case ASCE_TYPE_SEGMENT: {
 		union segment_table_entry ste;
 
@@ -1050,7 +1050,8 @@ shadow_r2t:
 		rc = gmap_shadow_r2t(sg, saddr, rfte.val, *fake);
 		if (rc)
 			return rc;
-	} /* fallthrough */
+	}
+		fallthrough;
 	case ASCE_TYPE_REGION2: {
 		union region2_table_entry rste;
 
@@ -1076,7 +1077,8 @@ shadow_r3t:
 		rc = gmap_shadow_r3t(sg, saddr, rste.val, *fake);
 		if (rc)
 			return rc;
-	} /* fallthrough */
+	}
+		fallthrough;
 	case ASCE_TYPE_REGION3: {
 		union region3_table_entry rtte;
 
@@ -1111,7 +1113,8 @@ shadow_sgt:
 		rc = gmap_shadow_sgt(sg, saddr, rtte.val, *fake);
 		if (rc)
 			return rc;
-	} /* fallthrough */
+	}
+		fallthrough;
 	case ASCE_TYPE_SEGMENT: {
 		union segment_table_entry ste;
 
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 028167d6eacd..8191106bf7b9 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -886,7 +886,7 @@ static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
 	case PGM_PRIMARY_AUTHORITY:
 	case PGM_SECONDARY_AUTHORITY:
 		nullifying = true;
-		/* fall through */
+		fallthrough;
 	case PGM_SPACE_SWITCH:
 		rc = put_guest_lc(vcpu, pgm_info.trans_exc_code,
 				  (u64 *)__LC_TRANS_EXC_CODE);
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index cb15fdda1fee..6b2649b3d4f3 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -3746,7 +3746,7 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
 		rc = kvm_s390_pv_set_cpu_state(vcpu, PV_CPU_STATE_OPR_LOAD);
 		break;
 	case KVM_MP_STATE_CHECK_STOP:
-		/* fall through - CHECK_STOP and LOAD are not supported yet */
+		fallthrough;	/* CHECK_STOP and LOAD are not supported yet */
 	default:
 		rc = -ENXIO;
 	}
@@ -4973,7 +4973,7 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
 					old->npages * PAGE_SIZE);
 		if (rc)
 			break;
-		/* FALLTHROUGH */
+		fallthrough;
 	case KVM_MR_CREATE:
 		rc = gmap_map_segment(kvm->arch.gmap, mem->userspace_addr,
 				      mem->guest_phys_addr, mem->memory_size);
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index 27926a06df32..03c899849c38 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -804,7 +804,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
 		if (*table & _REGION_ENTRY_INVALID)
 			return NULL;
 		table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
-		/* Fallthrough */
+		fallthrough;
 	case _ASCE_TYPE_REGION2:
 		table += (gaddr & _REGION2_INDEX) >> _REGION2_SHIFT;
 		if (level == 3)
@@ -812,7 +812,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
 		if (*table & _REGION_ENTRY_INVALID)
 			return NULL;
 		table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
-		/* Fallthrough */
+		fallthrough;
 	case _ASCE_TYPE_REGION3:
 		table += (gaddr & _REGION3_INDEX) >> _REGION3_SHIFT;
 		if (level == 2)
@@ -820,7 +820,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
 		if (*table & _REGION_ENTRY_INVALID)
 			return NULL;
 		table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
-		/* Fallthrough */
+		fallthrough;
 	case _ASCE_TYPE_SEGMENT:
 		table += (gaddr & _SEGMENT_INDEX) >> _SEGMENT_SHIFT;
 		if (level == 1)