diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index f4b19d78782b..b112efc816f1 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -2315,7 +2315,7 @@ struct kvm_s390_interrupt {
 
 type can be one of the following:
 
-KVM_S390_SIGP_STOP (vcpu) - sigp restart
+KVM_S390_SIGP_STOP (vcpu) - sigp stop; optional flags in parm
 KVM_S390_PROGRAM_INT (vcpu) - program check; code in parm
 KVM_S390_SIGP_SET_PREFIX (vcpu) - sigp set prefix; prefix address in parm
 KVM_S390_RESTART (vcpu) - restart
@@ -3228,3 +3228,23 @@ userspace from doing that.
 If the hcall number specified is not one that has an in-kernel
 implementation, the KVM_ENABLE_CAP ioctl will fail with an EINVAL
 error.
+
+7.2 KVM_CAP_S390_USER_SIGP
+
+Architectures: s390
+Parameters: none
+
+This capability controls which SIGP orders will be handled completely in user
+space. With this capability enabled, all fast orders will be handled completely
+in the kernel:
+- SENSE
+- SENSE RUNNING
+- EXTERNAL CALL
+- EMERGENCY SIGNAL
+- CONDITIONAL EMERGENCY SIGNAL
+
+All other orders will be handled completely in user space.
+
+Only privileged operation exceptions will be checked for in the kernel (or even
+in the hardware prior to interception). If this capability is not enabled, the
+old way of handling SIGP orders is used (partially in kernel and user space).
diff --git a/Documentation/virtual/kvm/devices/vm.txt b/Documentation/virtual/kvm/devices/vm.txt
index d426fc87fe93..c3b17c61b7dd 100644
--- a/Documentation/virtual/kvm/devices/vm.txt
+++ b/Documentation/virtual/kvm/devices/vm.txt
@@ -24,3 +24,17 @@ Returns: 0
 
 Clear the CMMA status for all guest pages, so any pages the guest marked
 as unused are again used any may not be reclaimed by the host.
+
+1.3. ATTRIBUTE KVM_S390_VM_MEM_LIMIT_SIZE
+Parameters: in attr->addr the address for the new limit of guest memory
+Returns: -EFAULT if the given address is not accessible
+         -EINVAL if the virtual machine is of type UCONTROL
+         -E2BIG if the given guest memory is to big for that machine
+         -EBUSY if a vcpu is already defined
+         -ENOMEM if not enough memory is available for a new shadow guest mapping
+          0 otherwise
+
+Allows userspace to query the actual limit and set a new limit for
+the maximum guest memory size. The limit will be rounded up to
+2048 MB, 4096 GB, 8192 TB respectively, as this limit is governed by
+the number of page table levels.
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 6fbfa5fff05d..b6358cab3ebf 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -249,9 +249,8 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
 	return ERR_PTR(err);
 }
 
-int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
+void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
 {
-	return 0;
 }
 
 void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index e3b21e51ff7e..7082481cd108 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -832,9 +832,8 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 	return -ENOIOCTLCMD;
 }
 
-int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
+void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
 {
-	return 0;
 }
 
 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index c45eaab752b0..27c0face86f4 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -623,9 +623,8 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
 	return vcpu;
 }
 
-int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
+void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
 {
-	return 0;
 }
 
 void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 9cba74d5d853..d1ecc7fd0579 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -35,11 +35,13 @@
 #define KVM_NR_IRQCHIPS 1
 #define KVM_IRQCHIP_NUM_PINS 4096
 
-#define SIGP_CTRL_C	0x00800000
+#define SIGP_CTRL_C		0x80
+#define SIGP_CTRL_SCN_MASK	0x3f
 
 struct sca_entry {
-	atomic_t ctrl;
-	__u32	reserved;
+	__u8	reserved0;
+	__u8	sigp_ctrl;
+	__u16	reserved[3];
 	__u64	sda;
 	__u64	reserved2[2];
 } __attribute__((packed));
@@ -132,7 +134,9 @@ struct kvm_s390_sie_block {
 	__u8	reserved60;		/* 0x0060 */
 	__u8	ecb;			/* 0x0061 */
 	__u8    ecb2;                   /* 0x0062 */
-	__u8    reserved63[1];          /* 0x0063 */
+#define ECB3_AES 0x04
+#define ECB3_DEA 0x08
+	__u8    ecb3;			/* 0x0063 */
 	__u32	scaol;			/* 0x0064 */
 	__u8	reserved68[4];		/* 0x0068 */
 	__u32	todpr;			/* 0x006c */
@@ -378,14 +382,11 @@ struct kvm_s390_interrupt_info {
 		struct kvm_s390_emerg_info emerg;
 		struct kvm_s390_extcall_info extcall;
 		struct kvm_s390_prefix_info prefix;
+		struct kvm_s390_stop_info stop;
 		struct kvm_s390_mchk_info mchk;
 	};
 };
 
-/* for local_interrupt.action_flags */
-#define ACTION_STORE_ON_STOP		(1<<0)
-#define ACTION_STOP_ON_STOP		(1<<1)
-
 struct kvm_s390_irq_payload {
 	struct kvm_s390_io_info io;
 	struct kvm_s390_ext_info ext;
@@ -393,6 +394,7 @@ struct kvm_s390_irq_payload {
 	struct kvm_s390_emerg_info emerg;
 	struct kvm_s390_extcall_info extcall;
 	struct kvm_s390_prefix_info prefix;
+	struct kvm_s390_stop_info stop;
 	struct kvm_s390_mchk_info mchk;
 };
 
@@ -401,7 +403,6 @@ struct kvm_s390_local_interrupt {
 	struct kvm_s390_float_interrupt *float_int;
 	wait_queue_head_t *wq;
 	atomic_t *cpuflags;
-	unsigned int action_bits;
 	DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
 	struct kvm_s390_irq_payload irq;
 	unsigned long pending_irqs;
@@ -470,7 +471,6 @@ struct kvm_vcpu_arch {
 	};
 	struct gmap *gmap;
 	struct kvm_guestdbg_info_arch guestdbg;
-#define KVM_S390_PFAULT_TOKEN_INVALID	(-1UL)
 	unsigned long pfault_token;
 	unsigned long pfault_select;
 	unsigned long pfault_compare;
@@ -507,10 +507,14 @@ struct s390_io_adapter {
 struct kvm_s390_crypto {
 	struct kvm_s390_crypto_cb *crycb;
 	__u32 crycbd;
+	__u8 aes_kw;
+	__u8 dea_kw;
 };
 
 struct kvm_s390_crypto_cb {
-	__u8    reserved00[128];                /* 0x0000 */
+	__u8    reserved00[72];                 /* 0x0000 */
+	__u8    dea_wrapping_key_mask[24];      /* 0x0048 */
+	__u8    aes_wrapping_key_mask[32];      /* 0x0060 */
 };
 
 struct kvm_arch{
@@ -523,12 +527,14 @@ struct kvm_arch{
 	int use_irqchip;
 	int use_cmma;
 	int user_cpu_state_ctrl;
+	int user_sigp;
 	struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
 	wait_queue_head_t ipte_wq;
 	int ipte_lock_count;
 	struct mutex ipte_mutex;
 	spinlock_t start_stop_lock;
 	struct kvm_s390_crypto crypto;
+	u64 epoch;
 };
 
 #define KVM_HVA_ERR_BAD		(-1UL)
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 1aba89b53cb9..425e6cc240ff 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -31,7 +31,8 @@ struct sclp_cpu_entry {
 	u8 reserved0[2];
 	u8 : 3;
 	u8 siif : 1;
-	u8 : 4;
+	u8 sigpif : 1;
+	u8 : 3;
 	u8 reserved2[10];
 	u8 type;
 	u8 reserved1;
@@ -66,6 +67,7 @@ int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode);
 unsigned long sclp_get_hsa_size(void);
 void sclp_early_detect(void);
 int sclp_has_siif(void);
+int sclp_has_sigpif(void);
 unsigned int sclp_get_ibc(void);
 
 #endif /* _ASM_S390_SCLP_H */
diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h
index 48eda3ab4944..546fc3a302e5 100644
--- a/arch/s390/include/uapi/asm/kvm.h
+++ b/arch/s390/include/uapi/asm/kvm.h
@@ -57,10 +57,23 @@ struct kvm_s390_io_adapter_req {
 
 /* kvm attr_group  on vm fd */
 #define KVM_S390_VM_MEM_CTRL		0
+#define KVM_S390_VM_TOD			1
+#define KVM_S390_VM_CRYPTO		2
 
 /* kvm attributes for mem_ctrl */
 #define KVM_S390_VM_MEM_ENABLE_CMMA	0
 #define KVM_S390_VM_MEM_CLR_CMMA	1
+#define KVM_S390_VM_MEM_LIMIT_SIZE	2
+
+/* kvm attributes for KVM_S390_VM_TOD */
+#define KVM_S390_VM_TOD_LOW		0
+#define KVM_S390_VM_TOD_HIGH		1
+
+/* kvm attributes for crypto */
+#define KVM_S390_VM_CRYPTO_ENABLE_AES_KW	0
+#define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW	1
+#define KVM_S390_VM_CRYPTO_DISABLE_AES_KW	2
+#define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW	3
 
 /* for KVM_GET_REGS and KVM_SET_REGS */
 struct kvm_regs {
@@ -107,6 +120,9 @@ struct kvm_guest_debug_arch {
 	struct kvm_hw_breakpoint __user *hw_bp;
 };
 
+/* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
+#define KVM_S390_PFAULT_TOKEN_INVALID	0xffffffffffffffffULL
+
 #define KVM_SYNC_PREFIX (1UL << 0)
 #define KVM_SYNC_GPRS   (1UL << 1)
 #define KVM_SYNC_ACRS   (1UL << 2)
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 81c77ab8102e..bebd2157edd0 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -68,18 +68,27 @@ static int handle_noop(struct kvm_vcpu *vcpu)
 
 static int handle_stop(struct kvm_vcpu *vcpu)
 {
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
 	int rc = 0;
-	unsigned int action_bits;
+	uint8_t flags, stop_pending;
 
 	vcpu->stat.exit_stop_request++;
-	trace_kvm_s390_stop_request(vcpu->arch.local_int.action_bits);
 
-	action_bits = vcpu->arch.local_int.action_bits;
-
-	if (!(action_bits & ACTION_STOP_ON_STOP))
+	/* delay the stop if any non-stop irq is pending */
+	if (kvm_s390_vcpu_has_irq(vcpu, 1))
 		return 0;
 
-	if (action_bits & ACTION_STORE_ON_STOP) {
+	/* avoid races with the injection/SIGP STOP code */
+	spin_lock(&li->lock);
+	flags = li->irq.stop.flags;
+	stop_pending = kvm_s390_is_stop_irq_pending(vcpu);
+	spin_unlock(&li->lock);
+
+	trace_kvm_s390_stop_request(stop_pending, flags);
+	if (!stop_pending)
+		return 0;
+
+	if (flags & KVM_S390_STOP_FLAG_STORE_STATUS) {
 		rc = kvm_s390_vcpu_store_status(vcpu,
 						KVM_S390_STORE_STATUS_NOADDR);
 		if (rc)
@@ -279,11 +288,13 @@ static int handle_external_interrupt(struct kvm_vcpu *vcpu)
 		irq.type = KVM_S390_INT_CPU_TIMER;
 		break;
 	case EXT_IRQ_EXTERNAL_CALL:
-		if (kvm_s390_si_ext_call_pending(vcpu))
-			return 0;
 		irq.type = KVM_S390_INT_EXTERNAL_CALL;
 		irq.u.extcall.code = vcpu->arch.sie_block->extcpuaddr;
-		break;
+		rc = kvm_s390_inject_vcpu(vcpu, &irq);
+		/* ignore if another external call is already pending */
+		if (rc == -EBUSY)
+			return 0;
+		return rc;
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -307,17 +318,19 @@ static int handle_mvpg_pei(struct kvm_vcpu *vcpu)
 	kvm_s390_get_regs_rre(vcpu, &reg1, &reg2);
 
 	/* Make sure that the source is paged-in */
-	srcaddr = kvm_s390_real_to_abs(vcpu, vcpu->run->s.regs.gprs[reg2]);
-	if (kvm_is_error_gpa(vcpu->kvm, srcaddr))
-		return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+	rc = guest_translate_address(vcpu, vcpu->run->s.regs.gprs[reg2],
+				     &srcaddr, 0);
+	if (rc)
+		return kvm_s390_inject_prog_cond(vcpu, rc);
 	rc = kvm_arch_fault_in_page(vcpu, srcaddr, 0);
 	if (rc != 0)
 		return rc;
 
 	/* Make sure that the destination is paged-in */
-	dstaddr = kvm_s390_real_to_abs(vcpu, vcpu->run->s.regs.gprs[reg1]);
-	if (kvm_is_error_gpa(vcpu->kvm, dstaddr))
-		return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+	rc = guest_translate_address(vcpu, vcpu->run->s.regs.gprs[reg1],
+				     &dstaddr, 1);
+	if (rc)
+		return kvm_s390_inject_prog_cond(vcpu, rc);
 	rc = kvm_arch_fault_in_page(vcpu, dstaddr, 1);
 	if (rc != 0)
 		return rc;
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index f00f31e66cd8..c34e1d904ff6 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -19,6 +19,7 @@
 #include <linux/bitmap.h>
 #include <asm/asm-offsets.h>
 #include <asm/uaccess.h>
+#include <asm/sclp.h>
 #include "kvm-s390.h"
 #include "gaccess.h"
 #include "trace-s390.h"
@@ -159,6 +160,12 @@ static unsigned long deliverable_local_irqs(struct kvm_vcpu *vcpu)
 	if (psw_mchk_disabled(vcpu))
 		active_mask &= ~IRQ_PEND_MCHK_MASK;
 
+	/*
+	 * STOP irqs will never be actively delivered. They are triggered via
+	 * intercept requests and cleared when the stop intercept is performed.
+	 */
+	__clear_bit(IRQ_PEND_SIGP_STOP, &active_mask);
+
 	return active_mask;
 }
 
@@ -186,9 +193,6 @@ static void __reset_intercept_indicators(struct kvm_vcpu *vcpu)
 					       LCTL_CR10 | LCTL_CR11);
 		vcpu->arch.sie_block->ictl |= (ICTL_STCTL | ICTL_PINT);
 	}
-
-	if (vcpu->arch.local_int.action_bits & ACTION_STOP_ON_STOP)
-		atomic_set_mask(CPUSTAT_STOP_INT, &vcpu->arch.sie_block->cpuflags);
 }
 
 static void __set_cpuflag(struct kvm_vcpu *vcpu, u32 flag)
@@ -216,11 +220,18 @@ static void set_intercept_indicators_mchk(struct kvm_vcpu *vcpu)
 		vcpu->arch.sie_block->lctl |= LCTL_CR14;
 }
 
+static void set_intercept_indicators_stop(struct kvm_vcpu *vcpu)
+{
+	if (kvm_s390_is_stop_irq_pending(vcpu))
+		__set_cpuflag(vcpu, CPUSTAT_STOP_INT);
+}
+
 /* Set interception request for non-deliverable local interrupts */
 static void set_intercept_indicators_local(struct kvm_vcpu *vcpu)
 {
 	set_intercept_indicators_ext(vcpu);
 	set_intercept_indicators_mchk(vcpu);
+	set_intercept_indicators_stop(vcpu);
 }
 
 static void __set_intercept_indicator(struct kvm_vcpu *vcpu,
@@ -392,18 +403,6 @@ static int __must_check __deliver_restart(struct kvm_vcpu *vcpu)
 	return rc ? -EFAULT : 0;
 }
 
-static int __must_check __deliver_stop(struct kvm_vcpu *vcpu)
-{
-	VCPU_EVENT(vcpu, 4, "%s", "interrupt: cpu stop");
-	vcpu->stat.deliver_stop_signal++;
-	trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, KVM_S390_SIGP_STOP,
-					 0, 0);
-
-	__set_cpuflag(vcpu, CPUSTAT_STOP_INT);
-	clear_bit(IRQ_PEND_SIGP_STOP, &vcpu->arch.local_int.pending_irqs);
-	return 0;
-}
-
 static int __must_check __deliver_set_prefix(struct kvm_vcpu *vcpu)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
@@ -705,7 +704,6 @@ static const deliver_irq_t deliver_irq_funcs[] = {
 	[IRQ_PEND_EXT_CLOCK_COMP] = __deliver_ckc,
 	[IRQ_PEND_EXT_CPU_TIMER]  = __deliver_cpu_timer,
 	[IRQ_PEND_RESTART]        = __deliver_restart,
-	[IRQ_PEND_SIGP_STOP]      = __deliver_stop,
 	[IRQ_PEND_SET_PREFIX]     = __deliver_set_prefix,
 	[IRQ_PEND_PFAULT_INIT]    = __deliver_pfault_init,
 };
@@ -738,21 +736,20 @@ static int __must_check __deliver_floating_interrupt(struct kvm_vcpu *vcpu,
 	return rc;
 }
 
-/* Check whether SIGP interpretation facility has an external call pending */
-int kvm_s390_si_ext_call_pending(struct kvm_vcpu *vcpu)
+/* Check whether an external call is pending (deliverable or not) */
+int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu)
 {
-	atomic_t *sigp_ctrl = &vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].ctrl;
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+	uint8_t sigp_ctrl = vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sigp_ctrl;
 
-	if (!psw_extint_disabled(vcpu) &&
-	    (vcpu->arch.sie_block->gcr[0] & 0x2000ul) &&
-	    (atomic_read(sigp_ctrl) & SIGP_CTRL_C) &&
-	    (atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_ECALL_PEND))
-		return 1;
+	if (!sclp_has_sigpif())
+		return test_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs);
 
-	return 0;
+	return (sigp_ctrl & SIGP_CTRL_C) &&
+	       (atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_ECALL_PEND);
 }
 
-int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu)
+int kvm_s390_vcpu_has_irq(struct kvm_vcpu *vcpu, int exclude_stop)
 {
 	struct kvm_s390_float_interrupt *fi = vcpu->arch.local_int.float_int;
 	struct kvm_s390_interrupt_info  *inti;
@@ -773,7 +770,13 @@ int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu)
 	if (!rc && kvm_cpu_has_pending_timer(vcpu))
 		rc = 1;
 
-	if (!rc && kvm_s390_si_ext_call_pending(vcpu))
+	/* external call pending and deliverable */
+	if (!rc && kvm_s390_ext_call_pending(vcpu) &&
+	    !psw_extint_disabled(vcpu) &&
+	    (vcpu->arch.sie_block->gcr[0] & 0x2000ul))
+		rc = 1;
+
+	if (!rc && !exclude_stop && kvm_s390_is_stop_irq_pending(vcpu))
 		rc = 1;
 
 	return rc;
@@ -804,14 +807,20 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
 		return -EOPNOTSUPP; /* disabled wait */
 	}
 
-	__set_cpu_idle(vcpu);
 	if (!ckc_interrupts_enabled(vcpu)) {
 		VCPU_EVENT(vcpu, 3, "%s", "enabled wait w/o timer");
+		__set_cpu_idle(vcpu);
 		goto no_timer;
 	}
 
 	now = get_tod_clock_fast() + vcpu->arch.sie_block->epoch;
 	sltime = tod_to_ns(vcpu->arch.sie_block->ckc - now);
+
+	/* underflow */
+	if (vcpu->arch.sie_block->ckc < now)
+		return 0;
+
+	__set_cpu_idle(vcpu);
 	hrtimer_start(&vcpu->arch.ckc_timer, ktime_set (0, sltime) , HRTIMER_MODE_REL);
 	VCPU_EVENT(vcpu, 5, "enabled wait via clock comparator: %llx ns", sltime);
 no_timer:
@@ -820,7 +829,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
 	__unset_cpu_idle(vcpu);
 	vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 
-	hrtimer_try_to_cancel(&vcpu->arch.ckc_timer);
+	hrtimer_cancel(&vcpu->arch.ckc_timer);
 	return 0;
 }
 
@@ -840,10 +849,20 @@ void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu)
 enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer)
 {
 	struct kvm_vcpu *vcpu;
+	u64 now, sltime;
 
 	vcpu = container_of(timer, struct kvm_vcpu, arch.ckc_timer);
-	kvm_s390_vcpu_wakeup(vcpu);
+	now = get_tod_clock_fast() + vcpu->arch.sie_block->epoch;
+	sltime = tod_to_ns(vcpu->arch.sie_block->ckc - now);
 
+	/*
+	 * If the monotonic clock runs faster than the tod clock we might be
+	 * woken up too early and have to go back to sleep to avoid deadlocks.
+	 */
+	if (vcpu->arch.sie_block->ckc > now &&
+	    hrtimer_forward_now(timer, ns_to_ktime(sltime)))
+		return HRTIMER_RESTART;
+	kvm_s390_vcpu_wakeup(vcpu);
 	return HRTIMER_NORESTART;
 }
 
@@ -859,8 +878,7 @@ void kvm_s390_clear_local_irqs(struct kvm_vcpu *vcpu)
 
 	/* clear pending external calls set by sigp interpretation facility */
 	atomic_clear_mask(CPUSTAT_ECALL_PEND, li->cpuflags);
-	atomic_clear_mask(SIGP_CTRL_C,
-			  &vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].ctrl);
+	vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sigp_ctrl = 0;
 }
 
 int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
@@ -984,18 +1002,43 @@ static int __inject_pfault_init(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 	return 0;
 }
 
-int __inject_extcall(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
+static int __inject_extcall_sigpif(struct kvm_vcpu *vcpu, uint16_t src_id)
+{
+	unsigned char new_val, old_val;
+	uint8_t *sigp_ctrl = &vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sigp_ctrl;
+
+	new_val = SIGP_CTRL_C | (src_id & SIGP_CTRL_SCN_MASK);
+	old_val = *sigp_ctrl & ~SIGP_CTRL_C;
+	if (cmpxchg(sigp_ctrl, old_val, new_val) != old_val) {
+		/* another external call is pending */
+		return -EBUSY;
+	}
+	atomic_set_mask(CPUSTAT_ECALL_PEND, &vcpu->arch.sie_block->cpuflags);
+	return 0;
+}
+
+static int __inject_extcall(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
 	struct kvm_s390_extcall_info *extcall = &li->irq.extcall;
+	uint16_t src_id = irq->u.extcall.code;
 
 	VCPU_EVENT(vcpu, 3, "inject: external call source-cpu:%u",
-		   irq->u.extcall.code);
+		   src_id);
 	trace_kvm_s390_inject_vcpu(vcpu->vcpu_id, KVM_S390_INT_EXTERNAL_CALL,
-				   irq->u.extcall.code, 0, 2);
+				   src_id, 0, 2);
 
+	/* sending vcpu invalid */
+	if (src_id >= KVM_MAX_VCPUS ||
+	    kvm_get_vcpu(vcpu->kvm, src_id) == NULL)
+		return -EINVAL;
+
+	if (sclp_has_sigpif())
+		return __inject_extcall_sigpif(vcpu, src_id);
+
+	if (!test_and_set_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs))
+		return -EBUSY;
 	*extcall = irq->u.extcall;
-	set_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs);
 	atomic_set_mask(CPUSTAT_EXT_INT, li->cpuflags);
 	return 0;
 }
@@ -1006,23 +1049,41 @@ static int __inject_set_prefix(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 	struct kvm_s390_prefix_info *prefix = &li->irq.prefix;
 
 	VCPU_EVENT(vcpu, 3, "inject: set prefix to %x (from user)",
-		   prefix->address);
+		   irq->u.prefix.address);
 	trace_kvm_s390_inject_vcpu(vcpu->vcpu_id, KVM_S390_SIGP_SET_PREFIX,
-				   prefix->address, 0, 2);
+				   irq->u.prefix.address, 0, 2);
+
+	if (!is_vcpu_stopped(vcpu))
+		return -EBUSY;
 
 	*prefix = irq->u.prefix;
 	set_bit(IRQ_PEND_SET_PREFIX, &li->pending_irqs);
 	return 0;
 }
 
+#define KVM_S390_STOP_SUPP_FLAGS (KVM_S390_STOP_FLAG_STORE_STATUS)
 static int __inject_sigp_stop(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+	struct kvm_s390_stop_info *stop = &li->irq.stop;
+	int rc = 0;
 
 	trace_kvm_s390_inject_vcpu(vcpu->vcpu_id, KVM_S390_SIGP_STOP, 0, 0, 2);
 
-	li->action_bits |= ACTION_STOP_ON_STOP;
-	set_bit(IRQ_PEND_SIGP_STOP, &li->pending_irqs);
+	if (irq->u.stop.flags & ~KVM_S390_STOP_SUPP_FLAGS)
+		return -EINVAL;
+
+	if (is_vcpu_stopped(vcpu)) {
+		if (irq->u.stop.flags & KVM_S390_STOP_FLAG_STORE_STATUS)
+			rc = kvm_s390_store_status_unloaded(vcpu,
+						KVM_S390_STORE_STATUS_NOADDR);
+		return rc;
+	}
+
+	if (test_and_set_bit(IRQ_PEND_SIGP_STOP, &li->pending_irqs))
+		return -EBUSY;
+	stop->flags = irq->u.stop.flags;
+	__set_cpuflag(vcpu, CPUSTAT_STOP_INT);
 	return 0;
 }
 
@@ -1042,14 +1103,13 @@ static int __inject_sigp_emergency(struct kvm_vcpu *vcpu,
 				   struct kvm_s390_irq *irq)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
-	struct kvm_s390_emerg_info *emerg = &li->irq.emerg;
 
 	VCPU_EVENT(vcpu, 3, "inject: emergency %u\n",
 		   irq->u.emerg.code);
 	trace_kvm_s390_inject_vcpu(vcpu->vcpu_id, KVM_S390_INT_EMERGENCY,
-				   emerg->code, 0, 2);
+				   irq->u.emerg.code, 0, 2);
 
-	set_bit(emerg->code, li->sigp_emerg_pending);
+	set_bit(irq->u.emerg.code, li->sigp_emerg_pending);
 	set_bit(IRQ_PEND_EXT_EMERGENCY, &li->pending_irqs);
 	atomic_set_mask(CPUSTAT_EXT_INT, li->cpuflags);
 	return 0;
@@ -1061,9 +1121,9 @@ static int __inject_mchk(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 	struct kvm_s390_mchk_info *mchk = &li->irq.mchk;
 
 	VCPU_EVENT(vcpu, 5, "inject: machine check parm64:%llx",
-		   mchk->mcic);
+		   irq->u.mchk.mcic);
 	trace_kvm_s390_inject_vcpu(vcpu->vcpu_id, KVM_S390_MCHK, 0,
-				   mchk->mcic, 2);
+				   irq->u.mchk.mcic, 2);
 
 	/*
 	 * Because repressible machine checks can be indicated along with
@@ -1121,7 +1181,6 @@ struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm,
 
 	if ((!schid && !cr6) || (schid && cr6))
 		return NULL;
-	mutex_lock(&kvm->lock);
 	fi = &kvm->arch.float_int;
 	spin_lock(&fi->lock);
 	inti = NULL;
@@ -1149,7 +1208,6 @@ struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm,
 	if (list_empty(&fi->list))
 		atomic_set(&fi->active, 0);
 	spin_unlock(&fi->lock);
-	mutex_unlock(&kvm->lock);
 	return inti;
 }
 
@@ -1162,7 +1220,6 @@ static int __inject_vm(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
 	int sigcpu;
 	int rc = 0;
 
-	mutex_lock(&kvm->lock);
 	fi = &kvm->arch.float_int;
 	spin_lock(&fi->lock);
 	if (fi->irq_count >= KVM_S390_MAX_FLOAT_IRQS) {
@@ -1213,7 +1270,6 @@ static int __inject_vm(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
 	kvm_s390_vcpu_wakeup(kvm_get_vcpu(kvm, sigcpu));
 unlock_fi:
 	spin_unlock(&fi->lock);
-	mutex_unlock(&kvm->lock);
 	return rc;
 }
 
@@ -1221,6 +1277,7 @@ int kvm_s390_inject_vm(struct kvm *kvm,
 		       struct kvm_s390_interrupt *s390int)
 {
 	struct kvm_s390_interrupt_info *inti;
+	int rc;
 
 	inti = kzalloc(sizeof(*inti), GFP_KERNEL);
 	if (!inti)
@@ -1239,7 +1296,6 @@ int kvm_s390_inject_vm(struct kvm *kvm,
 		inti->ext.ext_params = s390int->parm;
 		break;
 	case KVM_S390_INT_PFAULT_DONE:
-		inti->type = s390int->type;
 		inti->ext.ext_params2 = s390int->parm64;
 		break;
 	case KVM_S390_MCHK:
@@ -1268,7 +1324,10 @@ int kvm_s390_inject_vm(struct kvm *kvm,
 	trace_kvm_s390_inject_vm(s390int->type, s390int->parm, s390int->parm64,
 				 2);
 
-	return __inject_vm(kvm, inti);
+	rc = __inject_vm(kvm, inti);
+	if (rc)
+		kfree(inti);
+	return rc;
 }
 
 void kvm_s390_reinject_io_int(struct kvm *kvm,
@@ -1290,13 +1349,16 @@ int s390int_to_s390irq(struct kvm_s390_interrupt *s390int,
 	case KVM_S390_SIGP_SET_PREFIX:
 		irq->u.prefix.address = s390int->parm;
 		break;
+	case KVM_S390_SIGP_STOP:
+		irq->u.stop.flags = s390int->parm;
+		break;
 	case KVM_S390_INT_EXTERNAL_CALL:
-		if (irq->u.extcall.code & 0xffff0000)
+		if (s390int->parm & 0xffff0000)
 			return -EINVAL;
 		irq->u.extcall.code = s390int->parm;
 		break;
 	case KVM_S390_INT_EMERGENCY:
-		if (irq->u.emerg.code & 0xffff0000)
+		if (s390int->parm & 0xffff0000)
 			return -EINVAL;
 		irq->u.emerg.code = s390int->parm;
 		break;
@@ -1307,6 +1369,23 @@ int s390int_to_s390irq(struct kvm_s390_interrupt *s390int,
 	return 0;
 }
 
+int kvm_s390_is_stop_irq_pending(struct kvm_vcpu *vcpu)
+{
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+
+	return test_bit(IRQ_PEND_SIGP_STOP, &li->pending_irqs);
+}
+
+void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu)
+{
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+
+	spin_lock(&li->lock);
+	li->irq.stop.flags = 0;
+	clear_bit(IRQ_PEND_SIGP_STOP, &li->pending_irqs);
+	spin_unlock(&li->lock);
+}
+
 int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
@@ -1363,7 +1442,6 @@ void kvm_s390_clear_float_irqs(struct kvm *kvm)
 	struct kvm_s390_float_interrupt *fi;
 	struct kvm_s390_interrupt_info	*n, *inti = NULL;
 
-	mutex_lock(&kvm->lock);
 	fi = &kvm->arch.float_int;
 	spin_lock(&fi->lock);
 	list_for_each_entry_safe(inti, n, &fi->list, list) {
@@ -1373,7 +1451,6 @@ void kvm_s390_clear_float_irqs(struct kvm *kvm)
 	fi->irq_count = 0;
 	atomic_set(&fi->active, 0);
 	spin_unlock(&fi->lock);
-	mutex_unlock(&kvm->lock);
 }
 
 static inline int copy_irq_to_user(struct kvm_s390_interrupt_info *inti,
@@ -1413,7 +1490,6 @@ static int get_all_floating_irqs(struct kvm *kvm, __u8 *buf, __u64 len)
 	int ret = 0;
 	int n = 0;
 
-	mutex_lock(&kvm->lock);
 	fi = &kvm->arch.float_int;
 	spin_lock(&fi->lock);
 
@@ -1432,7 +1508,6 @@ static int get_all_floating_irqs(struct kvm *kvm, __u8 *buf, __u64 len)
 	}
 
 	spin_unlock(&fi->lock);
-	mutex_unlock(&kvm->lock);
 
 	return ret < 0 ? ret : n;
 }
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 3e09801e3104..b2371c0fd1f8 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -22,6 +22,7 @@
 #include <linux/kvm.h>
 #include <linux/kvm_host.h>
 #include <linux/module.h>
+#include <linux/random.h>
 #include <linux/slab.h>
 #include <linux/timer.h>
 #include <asm/asm-offsets.h>
@@ -166,6 +167,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_S390_IRQCHIP:
 	case KVM_CAP_VM_ATTRIBUTES:
 	case KVM_CAP_MP_STATE:
+	case KVM_CAP_S390_USER_SIGP:
 		r = 1;
 		break;
 	case KVM_CAP_NR_VCPUS:
@@ -254,6 +256,10 @@ static int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap)
 		kvm->arch.use_irqchip = 1;
 		r = 0;
 		break;
+	case KVM_CAP_S390_USER_SIGP:
+		kvm->arch.user_sigp = 1;
+		r = 0;
+		break;
 	default:
 		r = -EINVAL;
 		break;
@@ -261,7 +267,24 @@ static int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap)
 	return r;
 }
 
-static int kvm_s390_mem_control(struct kvm *kvm, struct kvm_device_attr *attr)
+static int kvm_s390_get_mem_control(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+	int ret;
+
+	switch (attr->attr) {
+	case KVM_S390_VM_MEM_LIMIT_SIZE:
+		ret = 0;
+		if (put_user(kvm->arch.gmap->asce_end, (u64 __user *)attr->addr))
+			ret = -EFAULT;
+		break;
+	default:
+		ret = -ENXIO;
+		break;
+	}
+	return ret;
+}
+
+static int kvm_s390_set_mem_control(struct kvm *kvm, struct kvm_device_attr *attr)
 {
 	int ret;
 	unsigned int idx;
@@ -283,6 +306,190 @@ static int kvm_s390_mem_control(struct kvm *kvm, struct kvm_device_attr *attr)
 		mutex_unlock(&kvm->lock);
 		ret = 0;
 		break;
+	case KVM_S390_VM_MEM_LIMIT_SIZE: {
+		unsigned long new_limit;
+
+		if (kvm_is_ucontrol(kvm))
+			return -EINVAL;
+
+		if (get_user(new_limit, (u64 __user *)attr->addr))
+			return -EFAULT;
+
+		if (new_limit > kvm->arch.gmap->asce_end)
+			return -E2BIG;
+
+		ret = -EBUSY;
+		mutex_lock(&kvm->lock);
+		if (atomic_read(&kvm->online_vcpus) == 0) {
+			/* gmap_alloc will round the limit up */
+			struct gmap *new = gmap_alloc(current->mm, new_limit);
+
+			if (!new) {
+				ret = -ENOMEM;
+			} else {
+				gmap_free(kvm->arch.gmap);
+				new->private = kvm;
+				kvm->arch.gmap = new;
+				ret = 0;
+			}
+		}
+		mutex_unlock(&kvm->lock);
+		break;
+	}
+	default:
+		ret = -ENXIO;
+		break;
+	}
+	return ret;
+}
+
+static void kvm_s390_vcpu_crypto_setup(struct kvm_vcpu *vcpu);
+
+static int kvm_s390_vm_set_crypto(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+	struct kvm_vcpu *vcpu;
+	int i;
+
+	if (!test_vfacility(76))
+		return -EINVAL;
+
+	mutex_lock(&kvm->lock);
+	switch (attr->attr) {
+	case KVM_S390_VM_CRYPTO_ENABLE_AES_KW:
+		get_random_bytes(
+			kvm->arch.crypto.crycb->aes_wrapping_key_mask,
+			sizeof(kvm->arch.crypto.crycb->aes_wrapping_key_mask));
+		kvm->arch.crypto.aes_kw = 1;
+		break;
+	case KVM_S390_VM_CRYPTO_ENABLE_DEA_KW:
+		get_random_bytes(
+			kvm->arch.crypto.crycb->dea_wrapping_key_mask,
+			sizeof(kvm->arch.crypto.crycb->dea_wrapping_key_mask));
+		kvm->arch.crypto.dea_kw = 1;
+		break;
+	case KVM_S390_VM_CRYPTO_DISABLE_AES_KW:
+		kvm->arch.crypto.aes_kw = 0;
+		memset(kvm->arch.crypto.crycb->aes_wrapping_key_mask, 0,
+			sizeof(kvm->arch.crypto.crycb->aes_wrapping_key_mask));
+		break;
+	case KVM_S390_VM_CRYPTO_DISABLE_DEA_KW:
+		kvm->arch.crypto.dea_kw = 0;
+		memset(kvm->arch.crypto.crycb->dea_wrapping_key_mask, 0,
+			sizeof(kvm->arch.crypto.crycb->dea_wrapping_key_mask));
+		break;
+	default:
+		mutex_unlock(&kvm->lock);
+		return -ENXIO;
+	}
+
+	kvm_for_each_vcpu(i, vcpu, kvm) {
+		kvm_s390_vcpu_crypto_setup(vcpu);
+		exit_sie(vcpu);
+	}
+	mutex_unlock(&kvm->lock);
+	return 0;
+}
+
+static int kvm_s390_set_tod_high(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+	u8 gtod_high;
+
+	if (copy_from_user(&gtod_high, (void __user *)attr->addr,
+					   sizeof(gtod_high)))
+		return -EFAULT;
+
+	if (gtod_high != 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int kvm_s390_set_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+	struct kvm_vcpu *cur_vcpu;
+	unsigned int vcpu_idx;
+	u64 host_tod, gtod;
+	int r;
+
+	if (copy_from_user(&gtod, (void __user *)attr->addr, sizeof(gtod)))
+		return -EFAULT;
+
+	r = store_tod_clock(&host_tod);
+	if (r)
+		return r;
+
+	mutex_lock(&kvm->lock);
+	kvm->arch.epoch = gtod - host_tod;
+	kvm_for_each_vcpu(vcpu_idx, cur_vcpu, kvm) {
+		cur_vcpu->arch.sie_block->epoch = kvm->arch.epoch;
+		exit_sie(cur_vcpu);
+	}
+	mutex_unlock(&kvm->lock);
+	return 0;
+}
+
+static int kvm_s390_set_tod(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+	int ret;
+
+	if (attr->flags)
+		return -EINVAL;
+
+	switch (attr->attr) {
+	case KVM_S390_VM_TOD_HIGH:
+		ret = kvm_s390_set_tod_high(kvm, attr);
+		break;
+	case KVM_S390_VM_TOD_LOW:
+		ret = kvm_s390_set_tod_low(kvm, attr);
+		break;
+	default:
+		ret = -ENXIO;
+		break;
+	}
+	return ret;
+}
+
+static int kvm_s390_get_tod_high(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+	u8 gtod_high = 0;
+
+	if (copy_to_user((void __user *)attr->addr, &gtod_high,
+					 sizeof(gtod_high)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int kvm_s390_get_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+	u64 host_tod, gtod;
+	int r;
+
+	r = store_tod_clock(&host_tod);
+	if (r)
+		return r;
+
+	gtod = host_tod + kvm->arch.epoch;
+	if (copy_to_user((void __user *)attr->addr, &gtod, sizeof(gtod)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int kvm_s390_get_tod(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+	int ret;
+
+	if (attr->flags)
+		return -EINVAL;
+
+	switch (attr->attr) {
+	case KVM_S390_VM_TOD_HIGH:
+		ret = kvm_s390_get_tod_high(kvm, attr);
+		break;
+	case KVM_S390_VM_TOD_LOW:
+		ret = kvm_s390_get_tod_low(kvm, attr);
+		break;
 	default:
 		ret = -ENXIO;
 		break;
@@ -296,7 +503,13 @@ static int kvm_s390_vm_set_attr(struct kvm *kvm, struct kvm_device_attr *attr)
 
 	switch (attr->group) {
 	case KVM_S390_VM_MEM_CTRL:
-		ret = kvm_s390_mem_control(kvm, attr);
+		ret = kvm_s390_set_mem_control(kvm, attr);
+		break;
+	case KVM_S390_VM_TOD:
+		ret = kvm_s390_set_tod(kvm, attr);
+		break;
+	case KVM_S390_VM_CRYPTO:
+		ret = kvm_s390_vm_set_crypto(kvm, attr);
 		break;
 	default:
 		ret = -ENXIO;
@@ -308,7 +521,21 @@ static int kvm_s390_vm_set_attr(struct kvm *kvm, struct kvm_device_attr *attr)
 
 static int kvm_s390_vm_get_attr(struct kvm *kvm, struct kvm_device_attr *attr)
 {
-	return -ENXIO;
+	int ret;
+
+	switch (attr->group) {
+	case KVM_S390_VM_MEM_CTRL:
+		ret = kvm_s390_get_mem_control(kvm, attr);
+		break;
+	case KVM_S390_VM_TOD:
+		ret = kvm_s390_get_tod(kvm, attr);
+		break;
+	default:
+		ret = -ENXIO;
+		break;
+	}
+
+	return ret;
 }
 
 static int kvm_s390_vm_has_attr(struct kvm *kvm, struct kvm_device_attr *attr)
@@ -320,6 +547,31 @@ static int kvm_s390_vm_has_attr(struct kvm *kvm, struct kvm_device_attr *attr)
 		switch (attr->attr) {
 		case KVM_S390_VM_MEM_ENABLE_CMMA:
 		case KVM_S390_VM_MEM_CLR_CMMA:
+		case KVM_S390_VM_MEM_LIMIT_SIZE:
+			ret = 0;
+			break;
+		default:
+			ret = -ENXIO;
+			break;
+		}
+		break;
+	case KVM_S390_VM_TOD:
+		switch (attr->attr) {
+		case KVM_S390_VM_TOD_LOW:
+		case KVM_S390_VM_TOD_HIGH:
+			ret = 0;
+			break;
+		default:
+			ret = -ENXIO;
+			break;
+		}
+		break;
+	case KVM_S390_VM_CRYPTO:
+		switch (attr->attr) {
+		case KVM_S390_VM_CRYPTO_ENABLE_AES_KW:
+		case KVM_S390_VM_CRYPTO_ENABLE_DEA_KW:
+		case KVM_S390_VM_CRYPTO_DISABLE_AES_KW:
+		case KVM_S390_VM_CRYPTO_DISABLE_DEA_KW:
 			ret = 0;
 			break;
 		default:
@@ -414,6 +666,10 @@ static int kvm_s390_crypto_init(struct kvm *kvm)
 	kvm->arch.crypto.crycbd = (__u32) (unsigned long) kvm->arch.crypto.crycb |
 				  CRYCB_FORMAT1;
 
+	/* Disable AES/DEA protected key functions by default */
+	kvm->arch.crypto.aes_kw = 0;
+	kvm->arch.crypto.dea_kw = 0;
+
 	return 0;
 }
 
@@ -477,6 +733,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 
 	kvm->arch.css_support = 0;
 	kvm->arch.use_irqchip = 0;
+	kvm->arch.epoch = 0;
 
 	spin_lock_init(&kvm->arch.start_stop_lock);
 
@@ -546,25 +803,30 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 }
 
 /* Section: vcpu related */
+static int __kvm_ucontrol_vcpu_init(struct kvm_vcpu *vcpu)
+{
+	vcpu->arch.gmap = gmap_alloc(current->mm, -1UL);
+	if (!vcpu->arch.gmap)
+		return -ENOMEM;
+	vcpu->arch.gmap->private = vcpu->kvm;
+
+	return 0;
+}
+
 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 {
 	vcpu->arch.pfault_token = KVM_S390_PFAULT_TOKEN_INVALID;
 	kvm_clear_async_pf_completion_queue(vcpu);
-	if (kvm_is_ucontrol(vcpu->kvm)) {
-		vcpu->arch.gmap = gmap_alloc(current->mm, -1UL);
-		if (!vcpu->arch.gmap)
-			return -ENOMEM;
-		vcpu->arch.gmap->private = vcpu->kvm;
-		return 0;
-	}
-
-	vcpu->arch.gmap = vcpu->kvm->arch.gmap;
 	vcpu->run->kvm_valid_regs = KVM_SYNC_PREFIX |
 				    KVM_SYNC_GPRS |
 				    KVM_SYNC_ACRS |
 				    KVM_SYNC_CRS |
 				    KVM_SYNC_ARCH0 |
 				    KVM_SYNC_PFAULT;
+
+	if (kvm_is_ucontrol(vcpu->kvm))
+		return __kvm_ucontrol_vcpu_init(vcpu);
+
 	return 0;
 }
 
@@ -615,9 +877,13 @@ static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu)
 	kvm_s390_clear_local_irqs(vcpu);
 }
 
-int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
+void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
 {
-	return 0;
+	mutex_lock(&vcpu->kvm->lock);
+	vcpu->arch.sie_block->epoch = vcpu->kvm->arch.epoch;
+	mutex_unlock(&vcpu->kvm->lock);
+	if (!kvm_is_ucontrol(vcpu->kvm))
+		vcpu->arch.gmap = vcpu->kvm->arch.gmap;
 }
 
 static void kvm_s390_vcpu_crypto_setup(struct kvm_vcpu *vcpu)
@@ -625,6 +891,13 @@ static void kvm_s390_vcpu_crypto_setup(struct kvm_vcpu *vcpu)
 	if (!test_vfacility(76))
 		return;
 
+	vcpu->arch.sie_block->ecb3 &= ~(ECB3_AES | ECB3_DEA);
+
+	if (vcpu->kvm->arch.crypto.aes_kw)
+		vcpu->arch.sie_block->ecb3 |= ECB3_AES;
+	if (vcpu->kvm->arch.crypto.dea_kw)
+		vcpu->arch.sie_block->ecb3 |= ECB3_DEA;
+
 	vcpu->arch.sie_block->crycbd = vcpu->kvm->arch.crypto.crycbd;
 }
 
@@ -658,9 +931,11 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 		vcpu->arch.sie_block->ecb |= 0x10;
 
 	vcpu->arch.sie_block->ecb2  = 8;
-	vcpu->arch.sie_block->eca   = 0xD1002000U;
+	vcpu->arch.sie_block->eca   = 0xC1002000U;
 	if (sclp_has_siif())
 		vcpu->arch.sie_block->eca |= 1;
+	if (sclp_has_sigpif())
+		vcpu->arch.sie_block->eca |= 0x10000000U;
 	vcpu->arch.sie_block->fac   = (int) (long) vfacilities;
 	vcpu->arch.sie_block->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE |
 				      ICTL_TPROT;
@@ -670,7 +945,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 		if (rc)
 			return rc;
 	}
-	hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
+	hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	vcpu->arch.ckc_timer.function = kvm_s390_idle_wakeup;
 	get_cpu_id(&vcpu->arch.cpu_id);
 	vcpu->arch.cpu_id.version = 0xff;
@@ -741,7 +1016,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
 
 int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
 {
-	return kvm_cpu_has_interrupt(vcpu);
+	return kvm_s390_vcpu_has_irq(vcpu, 0);
 }
 
 void s390_vcpu_block(struct kvm_vcpu *vcpu)
@@ -869,6 +1144,8 @@ static int kvm_arch_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu,
 	case KVM_REG_S390_PFTOKEN:
 		r = get_user(vcpu->arch.pfault_token,
 			     (u64 __user *)reg->addr);
+		if (vcpu->arch.pfault_token == KVM_S390_PFAULT_TOKEN_INVALID)
+			kvm_clear_async_pf_completion_queue(vcpu);
 		break;
 	case KVM_REG_S390_PFCOMPARE:
 		r = get_user(vcpu->arch.pfault_compare,
@@ -1176,7 +1453,7 @@ static int kvm_arch_setup_async_pf(struct kvm_vcpu *vcpu)
 		return 0;
 	if (psw_extint_disabled(vcpu))
 		return 0;
-	if (kvm_cpu_has_interrupt(vcpu))
+	if (kvm_s390_vcpu_has_irq(vcpu, 0))
 		return 0;
 	if (!(vcpu->arch.sie_block->gcr[0] & 0x200ul))
 		return 0;
@@ -1341,6 +1618,8 @@ static void sync_regs(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		vcpu->arch.pfault_token = kvm_run->s.regs.pft;
 		vcpu->arch.pfault_select = kvm_run->s.regs.pfs;
 		vcpu->arch.pfault_compare = kvm_run->s.regs.pfc;
+		if (vcpu->arch.pfault_token == KVM_S390_PFAULT_TOKEN_INVALID)
+			kvm_clear_async_pf_completion_queue(vcpu);
 	}
 	kvm_run->kvm_dirty_regs = 0;
 }
@@ -1559,15 +1838,10 @@ void kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu)
 	spin_lock(&vcpu->kvm->arch.start_stop_lock);
 	online_vcpus = atomic_read(&vcpu->kvm->online_vcpus);
 
-	/* Need to lock access to action_bits to avoid a SIGP race condition */
-	spin_lock(&vcpu->arch.local_int.lock);
-	atomic_set_mask(CPUSTAT_STOPPED, &vcpu->arch.sie_block->cpuflags);
-
 	/* SIGP STOP and SIGP STOP AND STORE STATUS has been fully processed */
-	vcpu->arch.local_int.action_bits &=
-				 ~(ACTION_STOP_ON_STOP | ACTION_STORE_ON_STOP);
-	spin_unlock(&vcpu->arch.local_int.lock);
+	kvm_s390_clear_stop_irq(vcpu);
 
+	atomic_set_mask(CPUSTAT_STOPPED, &vcpu->arch.sie_block->cpuflags);
 	__disable_ibs_on_vcpu(vcpu);
 
 	for (i = 0; i < online_vcpus; i++) {
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index a8f3d9b71c11..c22dce8a7536 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -228,11 +228,13 @@ int s390int_to_s390irq(struct kvm_s390_interrupt *s390int,
 			struct kvm_s390_irq *s390irq);
 
 /* implemented in interrupt.c */
-int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
+int kvm_s390_vcpu_has_irq(struct kvm_vcpu *vcpu, int exclude_stop);
 int psw_extint_disabled(struct kvm_vcpu *vcpu);
 void kvm_s390_destroy_adapters(struct kvm *kvm);
-int kvm_s390_si_ext_call_pending(struct kvm_vcpu *vcpu);
+int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu);
 extern struct kvm_device_ops kvm_flic_ops;
+int kvm_s390_is_stop_irq_pending(struct kvm_vcpu *vcpu);
+void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu);
 
 /* implemented in guestdbg.c */
 void kvm_s390_backup_guest_per_regs(struct kvm_vcpu *vcpu);
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 6651f9f73973..23b1e86b2122 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -26,15 +26,17 @@ static int __sigp_sense(struct kvm_vcpu *vcpu, struct kvm_vcpu *dst_vcpu,
 	struct kvm_s390_local_interrupt *li;
 	int cpuflags;
 	int rc;
+	int ext_call_pending;
 
 	li = &dst_vcpu->arch.local_int;
 
 	cpuflags = atomic_read(li->cpuflags);
-	if (!(cpuflags & (CPUSTAT_ECALL_PEND | CPUSTAT_STOPPED)))
+	ext_call_pending = kvm_s390_ext_call_pending(dst_vcpu);
+	if (!(cpuflags & CPUSTAT_STOPPED) && !ext_call_pending)
 		rc = SIGP_CC_ORDER_CODE_ACCEPTED;
 	else {
 		*reg &= 0xffffffff00000000UL;
-		if (cpuflags & CPUSTAT_ECALL_PEND)
+		if (ext_call_pending)
 			*reg |= SIGP_STATUS_EXT_CALL_PENDING;
 		if (cpuflags & CPUSTAT_STOPPED)
 			*reg |= SIGP_STATUS_STOPPED;
@@ -96,7 +98,7 @@ static int __sigp_conditional_emergency(struct kvm_vcpu *vcpu,
 }
 
 static int __sigp_external_call(struct kvm_vcpu *vcpu,
-				struct kvm_vcpu *dst_vcpu)
+				struct kvm_vcpu *dst_vcpu, u64 *reg)
 {
 	struct kvm_s390_irq irq = {
 		.type = KVM_S390_INT_EXTERNAL_CALL,
@@ -105,45 +107,31 @@ static int __sigp_external_call(struct kvm_vcpu *vcpu,
 	int rc;
 
 	rc = kvm_s390_inject_vcpu(dst_vcpu, &irq);
-	if (!rc)
+	if (rc == -EBUSY) {
+		*reg &= 0xffffffff00000000UL;
+		*reg |= SIGP_STATUS_EXT_CALL_PENDING;
+		return SIGP_CC_STATUS_STORED;
+	} else if (rc == 0) {
 		VCPU_EVENT(vcpu, 4, "sent sigp ext call to cpu %x",
 			   dst_vcpu->vcpu_id);
+	}
 
 	return rc ? rc : SIGP_CC_ORDER_CODE_ACCEPTED;
 }
 
-static int __inject_sigp_stop(struct kvm_vcpu *dst_vcpu, int action)
-{
-	struct kvm_s390_local_interrupt *li = &dst_vcpu->arch.local_int;
-	int rc = SIGP_CC_ORDER_CODE_ACCEPTED;
-
-	spin_lock(&li->lock);
-	if (li->action_bits & ACTION_STOP_ON_STOP) {
-		/* another SIGP STOP is pending */
-		rc = SIGP_CC_BUSY;
-		goto out;
-	}
-	if ((atomic_read(li->cpuflags) & CPUSTAT_STOPPED)) {
-		if ((action & ACTION_STORE_ON_STOP) != 0)
-			rc = -ESHUTDOWN;
-		goto out;
-	}
-	set_bit(IRQ_PEND_SIGP_STOP, &li->pending_irqs);
-	li->action_bits |= action;
-	atomic_set_mask(CPUSTAT_STOP_INT, li->cpuflags);
-	kvm_s390_vcpu_wakeup(dst_vcpu);
-out:
-	spin_unlock(&li->lock);
-
-	return rc;
-}
-
 static int __sigp_stop(struct kvm_vcpu *vcpu, struct kvm_vcpu *dst_vcpu)
 {
+	struct kvm_s390_irq irq = {
+		.type = KVM_S390_SIGP_STOP,
+	};
 	int rc;
 
-	rc = __inject_sigp_stop(dst_vcpu, ACTION_STOP_ON_STOP);
-	VCPU_EVENT(vcpu, 4, "sent sigp stop to cpu %x", dst_vcpu->vcpu_id);
+	rc = kvm_s390_inject_vcpu(dst_vcpu, &irq);
+	if (rc == -EBUSY)
+		rc = SIGP_CC_BUSY;
+	else if (rc == 0)
+		VCPU_EVENT(vcpu, 4, "sent sigp stop to cpu %x",
+			   dst_vcpu->vcpu_id);
 
 	return rc;
 }
@@ -151,20 +139,18 @@ static int __sigp_stop(struct kvm_vcpu *vcpu, struct kvm_vcpu *dst_vcpu)
 static int __sigp_stop_and_store_status(struct kvm_vcpu *vcpu,
 					struct kvm_vcpu *dst_vcpu, u64 *reg)
 {
+	struct kvm_s390_irq irq = {
+		.type = KVM_S390_SIGP_STOP,
+		.u.stop.flags = KVM_S390_STOP_FLAG_STORE_STATUS,
+	};
 	int rc;
 
-	rc = __inject_sigp_stop(dst_vcpu, ACTION_STOP_ON_STOP |
-					      ACTION_STORE_ON_STOP);
-	VCPU_EVENT(vcpu, 4, "sent sigp stop and store status to cpu %x",
-		   dst_vcpu->vcpu_id);
-
-	if (rc == -ESHUTDOWN) {
-		/* If the CPU has already been stopped, we still have
-		 * to save the status when doing stop-and-store. This
-		 * has to be done after unlocking all spinlocks. */
-		rc = kvm_s390_store_status_unloaded(dst_vcpu,
-						KVM_S390_STORE_STATUS_NOADDR);
-	}
+	rc = kvm_s390_inject_vcpu(dst_vcpu, &irq);
+	if (rc == -EBUSY)
+		rc = SIGP_CC_BUSY;
+	else if (rc == 0)
+		VCPU_EVENT(vcpu, 4, "sent sigp stop and store status to cpu %x",
+			   dst_vcpu->vcpu_id);
 
 	return rc;
 }
@@ -197,41 +183,33 @@ static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter)
 static int __sigp_set_prefix(struct kvm_vcpu *vcpu, struct kvm_vcpu *dst_vcpu,
 			     u32 address, u64 *reg)
 {
-	struct kvm_s390_local_interrupt *li;
+	struct kvm_s390_irq irq = {
+		.type = KVM_S390_SIGP_SET_PREFIX,
+		.u.prefix.address = address & 0x7fffe000u,
+	};
 	int rc;
 
-	li = &dst_vcpu->arch.local_int;
-
 	/*
 	 * Make sure the new value is valid memory. We only need to check the
 	 * first page, since address is 8k aligned and memory pieces are always
 	 * at least 1MB aligned and have at least a size of 1MB.
 	 */
-	address &= 0x7fffe000u;
-	if (kvm_is_error_gpa(vcpu->kvm, address)) {
+	if (kvm_is_error_gpa(vcpu->kvm, irq.u.prefix.address)) {
 		*reg &= 0xffffffff00000000UL;
 		*reg |= SIGP_STATUS_INVALID_PARAMETER;
 		return SIGP_CC_STATUS_STORED;
 	}
 
-	spin_lock(&li->lock);
-	/* cpu must be in stopped state */
-	if (!(atomic_read(li->cpuflags) & CPUSTAT_STOPPED)) {
+	rc = kvm_s390_inject_vcpu(dst_vcpu, &irq);
+	if (rc == -EBUSY) {
 		*reg &= 0xffffffff00000000UL;
 		*reg |= SIGP_STATUS_INCORRECT_STATE;
-		rc = SIGP_CC_STATUS_STORED;
-		goto out_li;
+		return SIGP_CC_STATUS_STORED;
+	} else if (rc == 0) {
+		VCPU_EVENT(vcpu, 4, "set prefix of cpu %02x to %x",
+			   dst_vcpu->vcpu_id, irq.u.prefix.address);
 	}
 
-	li->irq.prefix.address = address;
-	set_bit(IRQ_PEND_SET_PREFIX, &li->pending_irqs);
-	kvm_s390_vcpu_wakeup(dst_vcpu);
-	rc = SIGP_CC_ORDER_CODE_ACCEPTED;
-
-	VCPU_EVENT(vcpu, 4, "set prefix of cpu %02x to %x", dst_vcpu->vcpu_id,
-		   address);
-out_li:
-	spin_unlock(&li->lock);
 	return rc;
 }
 
@@ -242,9 +220,7 @@ static int __sigp_store_status_at_addr(struct kvm_vcpu *vcpu,
 	int flags;
 	int rc;
 
-	spin_lock(&dst_vcpu->arch.local_int.lock);
 	flags = atomic_read(dst_vcpu->arch.local_int.cpuflags);
-	spin_unlock(&dst_vcpu->arch.local_int.lock);
 	if (!(flags & CPUSTAT_STOPPED)) {
 		*reg &= 0xffffffff00000000UL;
 		*reg |= SIGP_STATUS_INCORRECT_STATE;
@@ -291,8 +267,9 @@ static int __prepare_sigp_re_start(struct kvm_vcpu *vcpu,
 	/* handle (RE)START in user space */
 	int rc = -EOPNOTSUPP;
 
+	/* make sure we don't race with STOP irq injection */
 	spin_lock(&li->lock);
-	if (li->action_bits & ACTION_STOP_ON_STOP)
+	if (kvm_s390_is_stop_irq_pending(dst_vcpu))
 		rc = SIGP_CC_BUSY;
 	spin_unlock(&li->lock);
 
@@ -333,7 +310,7 @@ static int handle_sigp_dst(struct kvm_vcpu *vcpu, u8 order_code,
 		break;
 	case SIGP_EXTERNAL_CALL:
 		vcpu->stat.instruction_sigp_external_call++;
-		rc = __sigp_external_call(vcpu, dst_vcpu);
+		rc = __sigp_external_call(vcpu, dst_vcpu, status_reg);
 		break;
 	case SIGP_EMERGENCY_SIGNAL:
 		vcpu->stat.instruction_sigp_emergency++;
@@ -394,6 +371,53 @@ static int handle_sigp_dst(struct kvm_vcpu *vcpu, u8 order_code,
 	return rc;
 }
 
+static int handle_sigp_order_in_user_space(struct kvm_vcpu *vcpu, u8 order_code)
+{
+	if (!vcpu->kvm->arch.user_sigp)
+		return 0;
+
+	switch (order_code) {
+	case SIGP_SENSE:
+	case SIGP_EXTERNAL_CALL:
+	case SIGP_EMERGENCY_SIGNAL:
+	case SIGP_COND_EMERGENCY_SIGNAL:
+	case SIGP_SENSE_RUNNING:
+		return 0;
+	/* update counters as we're directly dropping to user space */
+	case SIGP_STOP:
+		vcpu->stat.instruction_sigp_stop++;
+		break;
+	case SIGP_STOP_AND_STORE_STATUS:
+		vcpu->stat.instruction_sigp_stop_store_status++;
+		break;
+	case SIGP_STORE_STATUS_AT_ADDRESS:
+		vcpu->stat.instruction_sigp_store_status++;
+		break;
+	case SIGP_SET_PREFIX:
+		vcpu->stat.instruction_sigp_prefix++;
+		break;
+	case SIGP_START:
+		vcpu->stat.instruction_sigp_start++;
+		break;
+	case SIGP_RESTART:
+		vcpu->stat.instruction_sigp_restart++;
+		break;
+	case SIGP_INITIAL_CPU_RESET:
+		vcpu->stat.instruction_sigp_init_cpu_reset++;
+		break;
+	case SIGP_CPU_RESET:
+		vcpu->stat.instruction_sigp_cpu_reset++;
+		break;
+	default:
+		vcpu->stat.instruction_sigp_unknown++;
+	}
+
+	VCPU_EVENT(vcpu, 4, "sigp order %u: completely handled in user space",
+		   order_code);
+
+	return 1;
+}
+
 int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu)
 {
 	int r1 = (vcpu->arch.sie_block->ipa & 0x00f0) >> 4;
@@ -408,6 +432,8 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
 	order_code = kvm_s390_get_base_disp_rs(vcpu);
+	if (handle_sigp_order_in_user_space(vcpu, order_code))
+		return -EOPNOTSUPP;
 
 	if (r1 % 2)
 		parameter = vcpu->run->s.regs.gprs[r1];
diff --git a/arch/s390/kvm/trace-s390.h b/arch/s390/kvm/trace-s390.h
index 647e9d6a4818..653a7ec09ef5 100644
--- a/arch/s390/kvm/trace-s390.h
+++ b/arch/s390/kvm/trace-s390.h
@@ -209,19 +209,21 @@ TRACE_EVENT(kvm_s390_request_resets,
  * Trace point for a vcpu's stop requests.
  */
 TRACE_EVENT(kvm_s390_stop_request,
-	    TP_PROTO(unsigned int action_bits),
-	    TP_ARGS(action_bits),
+	    TP_PROTO(unsigned char stop_irq, unsigned char flags),
+	    TP_ARGS(stop_irq, flags),
 
 	    TP_STRUCT__entry(
-		    __field(unsigned int, action_bits)
+		    __field(unsigned char, stop_irq)
+		    __field(unsigned char, flags)
 		    ),
 
 	    TP_fast_assign(
-		    __entry->action_bits = action_bits;
+		    __entry->stop_irq = stop_irq;
+		    __entry->flags = flags;
 		    ),
 
-	    TP_printk("stop request, action_bits = %08x",
-		      __entry->action_bits)
+	    TP_printk("stop request, stop irq = %u, flags = %08x",
+		      __entry->stop_irq, __entry->flags)
 	);
 
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d2bbb2d86610..afa0815bd384 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7021,15 +7021,13 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 	return r;
 }
 
-int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
+void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
 {
-	int r;
 	struct msr_data msr;
 	struct kvm *kvm = vcpu->kvm;
 
-	r = vcpu_load(vcpu);
-	if (r)
-		return r;
+	if (vcpu_load(vcpu))
+		return;
 	msr.data = 0x0;
 	msr.index = MSR_IA32_TSC;
 	msr.host_initiated = true;
@@ -7038,8 +7036,6 @@ int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
 
 	schedule_delayed_work(&kvm->arch.kvmclock_sync_work,
 					KVMCLOCK_SYNC_PERIOD);
-
-	return r;
 }
 
 void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index 5bd6cb145a87..b8a5bf5f1f3d 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -49,6 +49,7 @@ static unsigned long sclp_hsa_size;
 static unsigned int sclp_max_cpu;
 static struct sclp_ipl_info sclp_ipl_info;
 static unsigned char sclp_siif;
+static unsigned char sclp_sigpif;
 static u32 sclp_ibc;
 
 u64 sclp_facilities;
@@ -131,6 +132,7 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
 		if (boot_cpu_address != cpue->address)
 			continue;
 		sclp_siif = cpue->siif;
+		sclp_sigpif = cpue->sigpif;
 		break;
 	}
 
@@ -172,6 +174,12 @@ int sclp_has_siif(void)
 }
 EXPORT_SYMBOL(sclp_has_siif);
 
+int sclp_has_sigpif(void)
+{
+	return sclp_sigpif;
+}
+EXPORT_SYMBOL(sclp_has_sigpif);
+
 unsigned int sclp_get_ibc(void)
 {
 	return sclp_ibc;
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 0ef2daa199d8..7d6719522f1f 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -661,7 +661,7 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
 void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
 struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
 int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
-int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu);
+void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
 
 int kvm_arch_hardware_enable(void);
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index b4e6f1e70f03..805570650062 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -491,6 +491,11 @@ struct kvm_s390_emerg_info {
 	__u16 code;
 };
 
+#define KVM_S390_STOP_FLAG_STORE_STATUS	0x01
+struct kvm_s390_stop_info {
+	__u32 flags;
+};
+
 struct kvm_s390_mchk_info {
 	__u64 cr14;
 	__u64 mcic;
@@ -509,6 +514,7 @@ struct kvm_s390_irq {
 		struct kvm_s390_emerg_info emerg;
 		struct kvm_s390_extcall_info extcall;
 		struct kvm_s390_prefix_info prefix;
+		struct kvm_s390_stop_info stop;
 		struct kvm_s390_mchk_info mchk;
 		char reserved[64];
 	} u;
@@ -753,6 +759,7 @@ struct kvm_ppc_smmu_info {
 #define KVM_CAP_PPC_FIXUP_HCALL 103
 #define KVM_CAP_PPC_ENABLE_HCALL 104
 #define KVM_CAP_CHECK_EXTENSION_VM 105
+#define KVM_CAP_S390_USER_SIGP 106
 
 #ifdef KVM_CAP_IRQ_ROUTING