Linux-libre 4.2-gnu

46 files changed, 538 insertions, 398 deletions

diff --git a/arch/s390/configs/default_defconfig b/arch/s390/configs/default_defconfig
index 64707750c..940cbddd9 100644
--- a/arch/s390/configs/default_defconfig
+++ b/arch/s390/configs/default_defconfig
@@ -17,13 +17,15 @@ CONFIG_CGROUP_FREEZER=y
 CONFIG_CGROUP_DEVICE=y
 CONFIG_CPUSETS=y
 CONFIG_CGROUP_CPUACCT=y
-CONFIG_RESOURCE_COUNTERS=y
 CONFIG_CGROUP_PERF=y
 CONFIG_CFS_BANDWIDTH=y
 CONFIG_RT_GROUP_SCHED=y
 CONFIG_BLK_CGROUP=y
+CONFIG_NAMESPACES=y
 CONFIG_SCHED_AUTOGROUP=y
 CONFIG_BLK_DEV_INITRD=y
+CONFIG_EXPERT=y
+CONFIG_BPF_SYSCALL=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=m
@@ -44,6 +46,7 @@ CONFIG_SOLARIS_X86_PARTITION=y
 CONFIG_UNIXWARE_DISKLABEL=y
 CONFIG_CFQ_GROUP_IOSCHED=y
 CONFIG_DEFAULT_DEADLINE=y
+CONFIG_LIVEPATCH=y
 CONFIG_MARCH_Z196=y
 CONFIG_TUNE_ZEC12=y
 CONFIG_NR_CPUS=256
@@ -242,9 +245,9 @@ CONFIG_NF_CONNTRACK_IPV4=m
 # CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
 CONFIG_NF_TABLES_IPV4=m
 CONFIG_NFT_CHAIN_ROUTE_IPV4=m
-CONFIG_NFT_CHAIN_NAT_IPV4=m
 CONFIG_NF_TABLES_ARP=m
 CONFIG_NF_NAT_IPV4=m
+CONFIG_NFT_CHAIN_NAT_IPV4=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_AH=m
 CONFIG_IP_NF_MATCH_ECN=m
@@ -264,8 +267,8 @@ CONFIG_IP_NF_ARP_MANGLE=m
 CONFIG_NF_CONNTRACK_IPV6=m
 CONFIG_NF_TABLES_IPV6=m
 CONFIG_NFT_CHAIN_ROUTE_IPV6=m
-CONFIG_NFT_CHAIN_NAT_IPV6=m
 CONFIG_NF_NAT_IPV6=m
+CONFIG_NFT_CHAIN_NAT_IPV6=m
 CONFIG_IP6_NF_IPTABLES=m
 CONFIG_IP6_NF_MATCH_AH=m
 CONFIG_IP6_NF_MATCH_EUI64=m
@@ -353,7 +356,6 @@ CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_OSD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=32768
-CONFIG_BLK_DEV_XIP=y
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_ATA_OVER_ETH=m
 CONFIG_VIRTIO_BLK=y
@@ -458,7 +460,6 @@ CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y
 CONFIG_EXT2_FS_SECURITY=y
-CONFIG_EXT2_FS_XIP=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
 CONFIG_EXT3_FS_POSIX_ACL=y
@@ -544,7 +545,6 @@ CONFIG_FRAME_WARN=1024
 CONFIG_READABLE_ASM=y
 CONFIG_UNUSED_SYMBOLS=y
 CONFIG_MAGIC_SYSRQ=y
-CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_PAGEALLOC=y
 CONFIG_DEBUG_OBJECTS=y
 CONFIG_DEBUG_OBJECTS_SELFTEST=y
@@ -558,6 +558,7 @@ CONFIG_SLUB_STATS=y
 CONFIG_DEBUG_STACK_USAGE=y
 CONFIG_DEBUG_VM=y
 CONFIG_DEBUG_VM_RB=y
+CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_MEMORY_NOTIFIER_ERROR_INJECT=m
 CONFIG_DEBUG_PER_CPU_MAPS=y
 CONFIG_DEBUG_SHIRQ=y
@@ -575,7 +576,6 @@ CONFIG_DEBUG_LIST=y
 CONFIG_DEBUG_SG=y
 CONFIG_DEBUG_NOTIFIERS=y
 CONFIG_DEBUG_CREDENTIALS=y
-CONFIG_PROVE_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_RCU_CPU_STALL_TIMEOUT=300
 CONFIG_NOTIFIER_ERROR_INJECTION=m
@@ -611,7 +611,6 @@ CONFIG_TEST_BPF=m
 # CONFIG_STRICT_DEVMEM is not set
 CONFIG_S390_PTDUMP=y
 CONFIG_ENCRYPTED_KEYS=m
-CONFIG_KEYS_DEBUG_PROC_KEYS=y
 CONFIG_SECURITY=y
 CONFIG_SECURITY_NETWORK=y
 CONFIG_SECURITY_SELINUX=y
diff --git a/arch/s390/configs/gcov_defconfig b/arch/s390/configs/gcov_defconfig
index 5c3097272..d793fec91 100644
--- a/arch/s390/configs/gcov_defconfig
+++ b/arch/s390/configs/gcov_defconfig
@@ -17,11 +17,13 @@ CONFIG_CGROUP_FREEZER=y
 CONFIG_CGROUP_DEVICE=y
 CONFIG_CPUSETS=y
 CONFIG_CGROUP_CPUACCT=y
-CONFIG_RESOURCE_COUNTERS=y
 CONFIG_CGROUP_PERF=y
 CONFIG_BLK_CGROUP=y
+CONFIG_NAMESPACES=y
 CONFIG_SCHED_AUTOGROUP=y
 CONFIG_BLK_DEV_INITRD=y
+CONFIG_EXPERT=y
+CONFIG_BPF_SYSCALL=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=m
@@ -240,9 +242,9 @@ CONFIG_NF_CONNTRACK_IPV4=m
 # CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
 CONFIG_NF_TABLES_IPV4=m
 CONFIG_NFT_CHAIN_ROUTE_IPV4=m
-CONFIG_NFT_CHAIN_NAT_IPV4=m
 CONFIG_NF_TABLES_ARP=m
 CONFIG_NF_NAT_IPV4=m
+CONFIG_NFT_CHAIN_NAT_IPV4=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_AH=m
 CONFIG_IP_NF_MATCH_ECN=m
@@ -262,8 +264,8 @@ CONFIG_IP_NF_ARP_MANGLE=m
 CONFIG_NF_CONNTRACK_IPV6=m
 CONFIG_NF_TABLES_IPV6=m
 CONFIG_NFT_CHAIN_ROUTE_IPV6=m
-CONFIG_NFT_CHAIN_NAT_IPV6=m
 CONFIG_NF_NAT_IPV6=m
+CONFIG_NFT_CHAIN_NAT_IPV6=m
 CONFIG_IP6_NF_IPTABLES=m
 CONFIG_IP6_NF_MATCH_AH=m
 CONFIG_IP6_NF_MATCH_EUI64=m
@@ -350,7 +352,6 @@ CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_OSD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=32768
-CONFIG_BLK_DEV_XIP=y
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_ATA_OVER_ETH=m
 CONFIG_VIRTIO_BLK=y
@@ -455,7 +456,6 @@ CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y
 CONFIG_EXT2_FS_SECURITY=y
-CONFIG_EXT2_FS_XIP=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
 CONFIG_EXT3_FS_POSIX_ACL=y
@@ -538,7 +538,7 @@ CONFIG_DEBUG_INFO=y
 CONFIG_FRAME_WARN=1024
 CONFIG_UNUSED_SYMBOLS=y
 CONFIG_MAGIC_SYSRQ=y
-CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_MEMORY_NOTIFIER_ERROR_INJECT=m
 CONFIG_PANIC_ON_OOPS=y
 CONFIG_TIMER_STATS=y
@@ -558,7 +558,6 @@ CONFIG_ATOMIC64_SELFTEST=y
 # CONFIG_STRICT_DEVMEM is not set
 CONFIG_S390_PTDUMP=y
 CONFIG_ENCRYPTED_KEYS=m
-CONFIG_KEYS_DEBUG_PROC_KEYS=y
 CONFIG_SECURITY=y
 CONFIG_SECURITY_NETWORK=y
 CONFIG_SECURITY_SELINUX=y
diff --git a/arch/s390/configs/performance_defconfig b/arch/s390/configs/performance_defconfig
index bda70f1ff..38a77e9c8 100644
--- a/arch/s390/configs/performance_defconfig
+++ b/arch/s390/configs/performance_defconfig
@@ -17,11 +17,13 @@ CONFIG_CGROUP_FREEZER=y
 CONFIG_CGROUP_DEVICE=y
 CONFIG_CPUSETS=y
 CONFIG_CGROUP_CPUACCT=y
-CONFIG_RESOURCE_COUNTERS=y
 CONFIG_CGROUP_PERF=y
 CONFIG_BLK_CGROUP=y
+CONFIG_NAMESPACES=y
 CONFIG_SCHED_AUTOGROUP=y
 CONFIG_BLK_DEV_INITRD=y
+CONFIG_EXPERT=y
+CONFIG_BPF_SYSCALL=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=m
@@ -42,9 +44,10 @@ CONFIG_SOLARIS_X86_PARTITION=y
 CONFIG_UNIXWARE_DISKLABEL=y
 CONFIG_CFQ_GROUP_IOSCHED=y
 CONFIG_DEFAULT_DEADLINE=y
+CONFIG_LIVEPATCH=y
 CONFIG_MARCH_Z196=y
 CONFIG_TUNE_ZEC12=y
-CONFIG_NR_CPUS=256
+CONFIG_NR_CPUS=512
 CONFIG_HZ_100=y
 CONFIG_MEMORY_HOTPLUG=y
 CONFIG_MEMORY_HOTREMOVE=y
@@ -238,9 +241,9 @@ CONFIG_NF_CONNTRACK_IPV4=m
 # CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
 CONFIG_NF_TABLES_IPV4=m
 CONFIG_NFT_CHAIN_ROUTE_IPV4=m
-CONFIG_NFT_CHAIN_NAT_IPV4=m
 CONFIG_NF_TABLES_ARP=m
 CONFIG_NF_NAT_IPV4=m
+CONFIG_NFT_CHAIN_NAT_IPV4=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_AH=m
 CONFIG_IP_NF_MATCH_ECN=m
@@ -260,8 +263,8 @@ CONFIG_IP_NF_ARP_MANGLE=m
 CONFIG_NF_CONNTRACK_IPV6=m
 CONFIG_NF_TABLES_IPV6=m
 CONFIG_NFT_CHAIN_ROUTE_IPV6=m
-CONFIG_NFT_CHAIN_NAT_IPV6=m
 CONFIG_NF_NAT_IPV6=m
+CONFIG_NFT_CHAIN_NAT_IPV6=m
 CONFIG_IP6_NF_IPTABLES=m
 CONFIG_IP6_NF_MATCH_AH=m
 CONFIG_IP6_NF_MATCH_EUI64=m
@@ -348,7 +351,6 @@ CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_OSD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=32768
-CONFIG_BLK_DEV_XIP=y
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_ATA_OVER_ETH=m
 CONFIG_VIRTIO_BLK=y
@@ -453,7 +455,6 @@ CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y
 CONFIG_EXT2_FS_SECURITY=y
-CONFIG_EXT2_FS_XIP=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
 CONFIG_EXT3_FS_POSIX_ACL=y
@@ -536,7 +537,7 @@ CONFIG_DEBUG_INFO=y
 CONFIG_FRAME_WARN=1024
 CONFIG_UNUSED_SYMBOLS=y
 CONFIG_MAGIC_SYSRQ=y
-CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_PANIC_ON_OOPS=y
 CONFIG_TIMER_STATS=y
 CONFIG_RCU_TORTURE_TEST=m
@@ -553,7 +554,6 @@ CONFIG_ATOMIC64_SELFTEST=y
 # CONFIG_STRICT_DEVMEM is not set
 CONFIG_S390_PTDUMP=y
 CONFIG_ENCRYPTED_KEYS=m
-CONFIG_KEYS_DEBUG_PROC_KEYS=y
 CONFIG_SECURITY=y
 CONFIG_SECURITY_NETWORK=y
 CONFIG_SECURITY_SELINUX=y
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 83ef702d2..9256b48e7 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -8,7 +8,6 @@ CONFIG_TASKSTATS=y
 CONFIG_TASK_DELAY_ACCT=y
 CONFIG_TASK_XACCT=y
 CONFIG_TASK_IO_ACCOUNTING=y
-CONFIG_RCU_FAST_NO_HZ=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_CGROUPS=y
@@ -31,9 +30,11 @@ CONFIG_JUMP_LABEL=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
+CONFIG_BLK_DEV_INTEGRITY=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_IBM_PARTITION=y
 CONFIG_DEFAULT_DEADLINE=y
+CONFIG_LIVEPATCH=y
 CONFIG_MARCH_Z196=y
 CONFIG_NR_CPUS=256
 CONFIG_HZ_100=y
@@ -41,7 +42,6 @@ CONFIG_MEMORY_HOTPLUG=y
 CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_KSM=y
 CONFIG_TRANSPARENT_HUGEPAGE=y
-CONFIG_CMA=y
 CONFIG_CRASH_DUMP=y
 CONFIG_BINFMT_MISC=m
 CONFIG_HIBERNATION=y
@@ -125,6 +125,7 @@ CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_PAGEALLOC=y
 CONFIG_DETECT_HUNG_TASK=y
+CONFIG_PANIC_ON_OOPS=y
 CONFIG_TIMER_STATS=y
 CONFIG_DEBUG_RT_MUTEXES=y
 CONFIG_PROVE_LOCKING=y
@@ -135,12 +136,16 @@ CONFIG_DEBUG_LIST=y
 CONFIG_DEBUG_PI_LIST=y
 CONFIG_DEBUG_SG=y
 CONFIG_DEBUG_NOTIFIERS=y
-CONFIG_PROVE_RCU=y
 CONFIG_RCU_CPU_STALL_TIMEOUT=60
+# CONFIG_RCU_CPU_STALL_INFO is not set
 CONFIG_RCU_TRACE=y
 CONFIG_LATENCYTOP=y
 CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
+CONFIG_TRACER_SNAPSHOT=y
+CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
+CONFIG_STACK_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_UPROBE_EVENT=y
 CONFIG_KPROBES_SANITY_TEST=y
 # CONFIG_STRICT_DEVMEM is not set
 CONFIG_S390_PTDUMP=y
@@ -187,6 +192,7 @@ CONFIG_CRYPTO_ZLIB=m
 CONFIG_CRYPTO_LZO=m
 CONFIG_CRYPTO_LZ4=m
 CONFIG_CRYPTO_LZ4HC=m
+CONFIG_CRYPTO_ANSI_CPRNG=m
 CONFIG_ZCRYPT=m
 CONFIG_CRYPTO_SHA1_S390=m
 CONFIG_CRYPTO_SHA256_S390=m
diff --git a/arch/s390/hypfs/hypfs_sprp.c b/arch/s390/hypfs/hypfs_sprp.c
index f043c3c7e..dd42a26d0 100644
--- a/arch/s390/hypfs/hypfs_sprp.c
+++ b/arch/s390/hypfs/hypfs_sprp.c
@@ -128,14 +128,14 @@ static struct hypfs_dbfs_file hypfs_sprp_file = {
 
 int hypfs_sprp_init(void)
 {
-	if (!sclp_has_sprp())
+	if (!sclp.has_sprp)
 		return 0;
 	return hypfs_dbfs_create_file(&hypfs_sprp_file);
 }
 
 void hypfs_sprp_exit(void)
 {
-	if (!sclp_has_sprp())
+	if (!sclp.has_sprp)
 		return;
 	hypfs_dbfs_remove_file(&hypfs_sprp_file);
 }
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 2eeb0a0f5..b2e5902bd 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -62,18 +62,13 @@ static void hypfs_add_dentry(struct dentry *dentry)
 	hypfs_last_dentry = dentry;
 }
 
-static inline int hypfs_positive(struct dentry *dentry)
-{
-	return d_really_is_positive(dentry) && !d_unhashed(dentry);
-}
-
 static void hypfs_remove(struct dentry *dentry)
 {
 	struct dentry *parent;
 
 	parent = dentry->d_parent;
 	mutex_lock(&d_inode(parent)->i_mutex);
-	if (hypfs_positive(dentry)) {
+	if (simple_positive(dentry)) {
 		if (d_is_dir(dentry))
 			simple_rmdir(d_inode(parent), dentry);
 		else
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index c631f98fd..5ad26dd94 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -3,6 +3,6 @@
 generic-y += clkdev.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
+generic-y += mm-arch-hooks.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += trace_clock.h
diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
index 8d724718e..e6f8615a1 100644
--- a/arch/s390/include/asm/barrier.h
+++ b/arch/s390/include/asm/barrier.h
@@ -36,7 +36,7 @@
 #define smp_mb__before_atomic()		smp_mb()
 #define smp_mb__after_atomic()		smp_mb()
 
-#define set_mb(var, value)		do { var = value; mb(); } while (0)
+#define smp_store_mb(var, value)		do { WRITE_ONCE(var, value); mb(); } while (0)
 
 #define smp_store_release(p, v)						\
 do {									\
diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h
index 4eadec466..411464f4c 100644
--- a/arch/s390/include/asm/cmpxchg.h
+++ b/arch/s390/include/asm/cmpxchg.h
@@ -32,8 +32,6 @@
 	__old;								\
 })
 
-#define __HAVE_ARCH_CMPXCHG
-
 #define __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, insn)		\
 ({									\
 	register __typeof__(*(p1)) __old1 asm("2") = (o1);		\
diff --git a/arch/s390/include/asm/cpu.h b/arch/s390/include/asm/cpu.h
index f5a8e2fcd..915410003 100644
--- a/arch/s390/include/asm/cpu.h
+++ b/arch/s390/include/asm/cpu.h
@@ -8,8 +8,6 @@
 #ifndef _ASM_S390_CPU_H
 #define _ASM_S390_CPU_H
 
-#define MAX_CPU_ADDRESS 255
-
 #ifndef __ASSEMBLY__
 
 #include <linux/types.h>
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index 11eae5f55..d9be7c0c1 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -14,6 +14,7 @@
 
 #define is_hugepage_only_range(mm, addr, len)	0
 #define hugetlb_free_pgd_range			free_pgd_range
+#define hugepages_supported()			(MACHINE_HAS_HPAGE)
 
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte);
@@ -35,12 +36,8 @@ static inline int prepare_hugepage_range(struct file *file,
 	return 0;
 }
 
-#define hugetlb_prefault_arch_hook(mm)		do { } while (0)
 #define arch_clear_hugepage_flags(page)		do { } while (0)
 
-int arch_prepare_hugepage(struct page *page);
-void arch_release_hugepage(struct page *page);
-
 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
 				  pte_t *ptep)
 {
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index 30fd5c846..cb5fdf3a7 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -29,6 +29,7 @@ void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
 
 #define ioremap_nocache(addr, size)	ioremap(addr, size)
 #define ioremap_wc			ioremap_nocache
+#define ioremap_wt			ioremap_nocache
 
 static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
 {
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index ece606c2e..39ae6a359 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -94,7 +94,6 @@ struct dump_save_areas {
 };
 
 extern struct dump_save_areas dump_save_areas;
-struct save_area_ext *dump_save_area_create(int cpu);
 
 extern void do_reipl(void);
 extern void do_halt(void);
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index d01fc588b..3024acbe1 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -80,6 +80,7 @@ struct sca_block {
 #define CPUSTAT_MCDS       0x00000100
 #define CPUSTAT_SM         0x00000080
 #define CPUSTAT_IBS        0x00000040
+#define CPUSTAT_GED2       0x00000010
 #define CPUSTAT_G          0x00000008
 #define CPUSTAT_GED        0x00000004
 #define CPUSTAT_J          0x00000002
@@ -95,7 +96,8 @@ struct kvm_s390_sie_block {
 #define PROG_IN_SIE (1<<0)
 	__u32	prog0c;			/* 0x000c */
 	__u8	reserved10[16];		/* 0x0010 */
-#define PROG_BLOCK_SIE 0x00000001
+#define PROG_BLOCK_SIE	(1<<0)
+#define PROG_REQUEST	(1<<1)
 	atomic_t prog20;		/* 0x0020 */
 	__u8	reserved24[4];		/* 0x0024 */
 	__u64	cputm;			/* 0x0028 */
@@ -634,7 +636,7 @@ static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 static inline void kvm_arch_free_memslot(struct kvm *kvm,
 		struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}
-static inline void kvm_arch_memslots_updated(struct kvm *kvm) {}
+static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
 		struct kvm_memory_slot *slot) {}
diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h
index 4cb19fe76..f897ec73d 100644
--- a/arch/s390/include/asm/perf_event.h
+++ b/arch/s390/include/asm/perf_event.h
@@ -87,7 +87,15 @@ struct sf_raw_sample {
 } __packed;
 
 /* Perf hardware reserve and release functions */
+#ifdef CONFIG_PERF_EVENTS
 int perf_reserve_sampling(void);
 void perf_release_sampling(void);
+#else /* CONFIG_PERF_EVENTS */
+static inline int perf_reserve_sampling(void)
+{
+	return 0;
+}
+static inline void perf_release_sampling(void) {}
+#endif /* CONFIG_PERF_EVENTS */
 
 #endif /* _ASM_S390_PERF_EVENT_H */
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index ef24a212e..f66d82798 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1498,9 +1498,9 @@ static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
 	return pmd_young(pmd);
 }
 
-#define __HAVE_ARCH_PMDP_GET_AND_CLEAR
-static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
-				       unsigned long address, pmd_t *pmdp)
+#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
+static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
+					    unsigned long address, pmd_t *pmdp)
 {
 	pmd_t pmd = *pmdp;
 
@@ -1509,10 +1509,10 @@ static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
 	return pmd;
 }
 
-#define __HAVE_ARCH_PMDP_GET_AND_CLEAR_FULL
-static inline pmd_t pmdp_get_and_clear_full(struct mm_struct *mm,
-					    unsigned long address,
-					    pmd_t *pmdp, int full)
+#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR_FULL
+static inline pmd_t pmdp_huge_get_and_clear_full(struct mm_struct *mm,
+						 unsigned long address,
+						 pmd_t *pmdp, int full)
 {
 	pmd_t pmd = *pmdp;
 
@@ -1522,11 +1522,11 @@ static inline pmd_t pmdp_get_and_clear_full(struct mm_struct *mm,
 	return pmd;
 }
 
-#define __HAVE_ARCH_PMDP_CLEAR_FLUSH
-static inline pmd_t pmdp_clear_flush(struct vm_area_struct *vma,
-				     unsigned long address, pmd_t *pmdp)
+#define __HAVE_ARCH_PMDP_HUGE_CLEAR_FLUSH
+static inline pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma,
+					  unsigned long address, pmd_t *pmdp)
 {
-	return pmdp_get_and_clear(vma->vm_mm, address, pmdp);
+	return pmdp_huge_get_and_clear(vma->vm_mm, address, pmdp);
 }
 
 #define __HAVE_ARCH_PMDP_INVALIDATE
@@ -1548,6 +1548,14 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
 	}
 }
 
+static inline pmd_t pmdp_collapse_flush(struct vm_area_struct *vma,
+					unsigned long address,
+					pmd_t *pmdp)
+{
+	return pmdp_huge_get_and_clear(vma->vm_mm, address, pmdp);
+}
+#define pmdp_collapse_flush pmdp_collapse_flush
+
 #define pfn_pmd(pfn, pgprot)	mk_pmd_phys(__pa((pfn) << PAGE_SHIFT), (pgprot))
 #define mk_pmd(page, pgprot)	pfn_pmd(page_to_pfn(page), (pgprot))
 
@@ -1565,9 +1573,9 @@ static inline int has_transparent_hugepage(void)
 /*
  * 64 bit swap entry format:
  * A page-table entry has some bits we have to treat in a special way.
- * Bits 52 and bit 55 have to be zero, otherwise an specification
+ * Bits 52 and bit 55 have to be zero, otherwise a specification
  * exception will occur instead of a page translation exception. The
- * specifiation exception has the bad habit not to store necessary
+ * specification exception has the bad habit not to store necessary
  * information in the lowcore.
  * Bits 54 and 63 are used to indicate the page type.
  * A swap pte is indicated by bit pattern (pte & 0x201) == 0x200
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index f1096bab5..f6ff06077 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -11,6 +11,7 @@
 #include <asm/cpu.h>
 
 #define SCLP_CHP_INFO_MASK_SIZE		32
+#define SCLP_MAX_CORES			256
 
 struct sclp_chp_info {
 	u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
@@ -26,7 +27,7 @@ struct sclp_ipl_info {
 	char loadparm[LOADPARM_LEN];
 };
 
-struct sclp_cpu_entry {
+struct sclp_core_entry {
 	u8 core_id;
 	u8 reserved0[2];
 	u8 : 3;
@@ -38,41 +39,46 @@ struct sclp_cpu_entry {
 	u8 reserved1;
 } __attribute__((packed));
 
-struct sclp_cpu_info {
+struct sclp_core_info {
 	unsigned int configured;
 	unsigned int standby;
 	unsigned int combined;
-	int has_cpu_type;
-	struct sclp_cpu_entry cpu[MAX_CPU_ADDRESS + 1];
+	struct sclp_core_entry core[SCLP_MAX_CORES];
 };
 
-int sclp_get_cpu_info(struct sclp_cpu_info *info);
-int sclp_cpu_configure(u8 cpu);
-int sclp_cpu_deconfigure(u8 cpu);
-unsigned long long sclp_get_rnmax(void);
-unsigned long long sclp_get_rzm(void);
-unsigned int sclp_get_max_cpu(void);
-unsigned int sclp_get_mtid(u8 cpu_type);
-unsigned int sclp_get_mtid_max(void);
-unsigned int sclp_get_mtid_prev(void);
+struct sclp_info {
+	unsigned char has_linemode : 1;
+	unsigned char has_vt220 : 1;
+	unsigned char has_siif : 1;
+	unsigned char has_sigpif : 1;
+	unsigned char has_core_type : 1;
+	unsigned char has_sprp : 1;
+	unsigned int ibc;
+	unsigned int mtid;
+	unsigned int mtid_cp;
+	unsigned int mtid_prev;
+	unsigned long long rzm;
+	unsigned long long rnmax;
+	unsigned long long hamax;
+	unsigned int max_cores;
+	unsigned long hsa_size;
+	unsigned long long facilities;
+};
+extern struct sclp_info sclp;
+
+int sclp_get_core_info(struct sclp_core_info *info);
+int sclp_core_configure(u8 core);
+int sclp_core_deconfigure(u8 core);
 int sclp_sdias_blk_count(void);
 int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
 int sclp_chp_configure(struct chp_id chpid);
 int sclp_chp_deconfigure(struct chp_id chpid);
 int sclp_chp_read_info(struct sclp_chp_info *info);
 void sclp_get_ipl_info(struct sclp_ipl_info *info);
-bool __init sclp_has_linemode(void);
-bool __init sclp_has_vt220(void);
-bool sclp_has_sprp(void);
 int sclp_pci_configure(u32 fid);
 int sclp_pci_deconfigure(u32 fid);
 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);
-
 long _sclp_print_early(const char *);
 
 #endif /* _ASM_S390_SCLP_H */
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index b3bd0282d..5df26b11c 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -29,6 +29,7 @@ extern void smp_call_ipl_cpu(void (*func)(void *), void *);
 
 extern int smp_find_processor_id(u16 address);
 extern int smp_store_status(int cpu);
+extern void smp_save_dump_cpus(void);
 extern int smp_vcpu_scheduled(int cpu);
 extern void smp_yield_cpu(int cpu);
 extern void smp_cpu_set_polarization(int cpu, int val);
@@ -54,6 +55,7 @@ static inline int smp_store_status(int cpu) { return 0; }
 static inline int smp_vcpu_scheduled(int cpu) { return 1; }
 static inline void smp_yield_cpu(int cpu) { }
 static inline void smp_fill_possible_mask(void) { }
+static inline void smp_save_dump_cpus(void) { }
 
 #endif /* CONFIG_SMP */
 
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 98eb2a579..dcb6312a0 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -10,6 +10,7 @@
 #define _ASM_S390_TIMEX_H
 
 #include <asm/lowcore.h>
+#include <linux/time64.h>
 
 /* The value of the TOD clock for 1.1.1970. */
 #define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
@@ -108,10 +109,10 @@ int get_sync_clock(unsigned long long *clock);
 void init_cpu_timer(void);
 unsigned long long monotonic_clock(void);
 
-void tod_to_timeval(__u64, struct timespec *);
+void tod_to_timeval(__u64 todval, struct timespec64 *xt);
 
 static inline
-void stck_to_timespec(unsigned long long stck, struct timespec *ts)
+void stck_to_timespec64(unsigned long long stck, struct timespec64 *ts)
 {
 	tod_to_timeval(stck - TOD_UNIX_EPOCH, ts);
 }
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index b1453a2ae..4990f6c66 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -22,7 +22,8 @@ DECLARE_PER_CPU(struct cpu_topology_s390, cpu_topology);
 
 #define topology_physical_package_id(cpu) (per_cpu(cpu_topology, cpu).socket_id)
 #define topology_thread_id(cpu)		  (per_cpu(cpu_topology, cpu).thread_id)
-#define topology_thread_cpumask(cpu)	  (&per_cpu(cpu_topology, cpu).thread_mask)
+#define topology_sibling_cpumask(cpu) \
+		(&per_cpu(cpu_topology, cpu).thread_mask)
 #define topology_core_id(cpu)		  (per_cpu(cpu_topology, cpu).core_id)
 #define topology_core_cpumask(cpu)	  (&per_cpu(cpu_topology, cpu).core_mask)
 #define topology_book_id(cpu)		  (per_cpu(cpu_topology, cpu).book_id)
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index d64a7a621..9dd4cc47d 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -98,7 +98,8 @@ static inline unsigned long extable_fixup(const struct exception_table_entry *x)
  * @from: Source address, in user space.
  * @n:	  Number of bytes to copy.
  *
- * Context: User context only.	This function may sleep.
+ * Context: User context only. This function may sleep if pagefaults are
+ *          enabled.
  *
  * Copy data from user space to kernel space.  Caller must check
  * the specified block with access_ok() before calling this function.
@@ -118,7 +119,8 @@ unsigned long __must_check __copy_from_user(void *to, const void __user *from,
  * @from: Source address, in kernel space.
  * @n:	  Number of bytes to copy.
  *
- * Context: User context only.	This function may sleep.
+ * Context: User context only. This function may sleep if pagefaults are
+ *          enabled.
  *
  * Copy data from kernel space to user space.  Caller must check
  * the specified block with access_ok() before calling this function.
@@ -264,7 +266,8 @@ int __get_user_bad(void) __attribute__((noreturn));
  * @from: Source address, in kernel space.
  * @n:    Number of bytes to copy.
  *
- * Context: User context only.  This function may sleep.
+ * Context: User context only. This function may sleep if pagefaults are
+ *          enabled.
  *
  * Copy data from kernel space to user space.
  *
@@ -290,7 +293,8 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct")
  * @from: Source address, in user space.
  * @n:    Number of bytes to copy.
  *
- * Context: User context only.  This function may sleep.
+ * Context: User context only. This function may sleep if pagefaults are
+ *          enabled.
  *
  * Copy data from user space to kernel space.
  *
@@ -348,7 +352,8 @@ static inline unsigned long strnlen_user(const char __user *src, unsigned long n
  * strlen_user: - Get the size of a string in user space.
  * @str: The string to measure.
  *
- * Context: User context only.  This function may sleep.
+ * Context: User context only. This function may sleep if pagefaults are
+ *          enabled.
  *
  * Get the size of a NUL-terminated string in user space.
  *
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index c7d1b9d09..a2da259d9 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -23,15 +23,15 @@
 
 int main(void)
 {
-	DEFINE(__THREAD_info, offsetof(struct task_struct, stack));
-	DEFINE(__THREAD_ksp, offsetof(struct task_struct, thread.ksp));
-	DEFINE(__THREAD_mm_segment, offsetof(struct task_struct, thread.mm_segment));
-	BLANK();
+	DEFINE(__TASK_thread_info, offsetof(struct task_struct, stack));
+	DEFINE(__TASK_thread, offsetof(struct task_struct, thread));
 	DEFINE(__TASK_pid, offsetof(struct task_struct, pid));
 	BLANK();
-	DEFINE(__THREAD_per_cause, offsetof(struct task_struct, thread.per_event.cause));
-	DEFINE(__THREAD_per_address, offsetof(struct task_struct, thread.per_event.address));
-	DEFINE(__THREAD_per_paid, offsetof(struct task_struct, thread.per_event.paid));
+	DEFINE(__THREAD_ksp, offsetof(struct thread_struct, ksp));
+	DEFINE(__THREAD_per_cause, offsetof(struct thread_struct, per_event.cause));
+	DEFINE(__THREAD_per_address, offsetof(struct thread_struct, per_event.address));
+	DEFINE(__THREAD_per_paid, offsetof(struct thread_struct, per_event.paid));
+	DEFINE(__THREAD_trap_tdb, offsetof(struct thread_struct, trap_tdb));
 	BLANK();
 	DEFINE(__TI_task, offsetof(struct thread_info, task));
 	DEFINE(__TI_flags, offsetof(struct thread_info, flags));
@@ -176,7 +176,6 @@ int main(void)
 	DEFINE(__LC_VDSO_PER_CPU, offsetof(struct _lowcore, vdso_per_cpu_data));
 	DEFINE(__LC_GMAP, offsetof(struct _lowcore, gmap));
 	DEFINE(__LC_PGM_TDB, offsetof(struct _lowcore, pgm_tdb));
-	DEFINE(__THREAD_trap_tdb, offsetof(struct task_struct, thread.trap_tdb));
 	DEFINE(__GMAP_ASCE, offsetof(struct gmap, asce));
 	DEFINE(__SIE_PROG0C, offsetof(struct kvm_s390_sie_block, prog0c));
 	DEFINE(__SIE_PROG20, offsetof(struct kvm_s390_sie_block, prog20));
diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S
index daed3fde4..326f717df 100644
--- a/arch/s390/kernel/base.S
+++ b/arch/s390/kernel/base.S
@@ -78,15 +78,20 @@ s390_base_pgm_handler_fn:
 #
 # Calls diag 308 subcode 1 and continues execution
 #
-# The following conditions must be ensured before calling this function:
-# * Prefix register = 0
-# * Lowcore protection is disabled
-#
 ENTRY(diag308_reset)
 	larl	%r4,.Lctlregs		# Save control registers
 	stctg	%c0,%c15,0(%r4)
+	lg	%r2,0(%r4)		# Disable lowcore protection
+	nilh	%r2,0xefff
+	larl	%r4,.Lctlreg0
+	stg	%r2,0(%r4)
+	lctlg	%c0,%c0,0(%r4)
 	larl	%r4,.Lfpctl		# Floating point control register
 	stfpc	0(%r4)
+	larl	%r4,.Lprefix		# Save prefix register
+	stpx	0(%r4)
+	larl	%r4,.Lprefix_zero	# Set prefix register to 0
+	spx	0(%r4)
 	larl	%r4,.Lcontinue_psw	# Save PSW flags
 	epsw	%r2,%r3
 	stm	%r2,%r3,0(%r4)
@@ -106,6 +111,8 @@ ENTRY(diag308_reset)
 	lctlg	%c0,%c15,0(%r4)
 	larl	%r4,.Lfpctl		# Restore floating point ctl register
 	lfpc	0(%r4)
+	larl	%r4,.Lprefix		# Restore prefix register
+	spx	0(%r4)
 	larl	%r4,.Lcontinue_psw	# Restore PSW flags
 	lpswe	0(%r4)
 .Lcontinue:
@@ -122,10 +129,16 @@ ENTRY(diag308_reset)
 
 	.section .bss
 .align 8
+.Lctlreg0:
+	.quad	0
 .Lctlregs:
 	.rept	16
 	.quad	0
 	.endr
 .Lfpctl:
 	.long	0
+.Lprefix:
+	.long	0
+.Lprefix_zero:
+	.long	0
 	.previous
diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c
index d7fa2f0f1..f8498dde6 100644
--- a/arch/s390/kernel/compat_wrapper.c
+++ b/arch/s390/kernel/compat_wrapper.c
@@ -202,7 +202,7 @@ COMPAT_SYSCALL_WRAP1(epoll_create1, int, flags);
 COMPAT_SYSCALL_WRAP2(tkill, int, pid, int, sig);
 COMPAT_SYSCALL_WRAP3(tgkill, int, tgid, int, pid, int, sig);
 COMPAT_SYSCALL_WRAP5(perf_event_open, struct perf_event_attr __user *, attr_uptr, pid_t, pid, int, cpu, int, group_fd, unsigned long, flags);
-COMPAT_SYSCALL_WRAP5(clone, unsigned long, newsp, unsigned long, clone_flags, int __user *, parent_tidptr, int __user *, child_tidptr, int, tls_val);
+COMPAT_SYSCALL_WRAP5(clone, unsigned long, newsp, unsigned long, clone_flags, int __user *, parent_tidptr, int __user *, child_tidptr, unsigned long, tls);
 COMPAT_SYSCALL_WRAP2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags);
 COMPAT_SYSCALL_WRAP4(prlimit64, pid_t, pid, unsigned int, resource, const struct rlimit64 __user *, new_rlim, struct rlimit64 __user *, old_rlim);
 COMPAT_SYSCALL_WRAP5(name_to_handle_at, int, dfd, const char __user *, name, struct file_handle __user *, handle, int __user *, mnt_id, int, flag);
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index 49b74454d..0c6c01eb3 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -33,42 +33,18 @@ static struct memblock_type oldmem_type = {
 };
 
 #define for_each_dump_mem_range(i, nid, p_start, p_end, p_nid)		\
-	for (i = 0, __next_mem_range(&i, nid, &memblock.physmem,	\
+	for (i = 0, __next_mem_range(&i, nid, MEMBLOCK_NONE,		\
+				     &memblock.physmem,			\
 				     &oldmem_type, p_start,		\
 				     p_end, p_nid);			\
 	     i != (u64)ULLONG_MAX;					\
-	     __next_mem_range(&i, nid, &memblock.physmem,		\
+	     __next_mem_range(&i, nid, MEMBLOCK_NONE, &memblock.physmem,\
 			      &oldmem_type,				\
 			      p_start, p_end, p_nid))
 
 struct dump_save_areas dump_save_areas;
 
 /*
- * Allocate and add a save area for a CPU
- */
-struct save_area_ext *dump_save_area_create(int cpu)
-{
-	struct save_area_ext **save_areas, *save_area;
-
-	save_area = kmalloc(sizeof(*save_area), GFP_KERNEL);
-	if (!save_area)
-		return NULL;
-	if (cpu + 1 > dump_save_areas.count) {
-		dump_save_areas.count = cpu + 1;
-		save_areas = krealloc(dump_save_areas.areas,
-				      dump_save_areas.count * sizeof(void *),
-				      GFP_KERNEL | __GFP_ZERO);
-		if (!save_areas) {
-			kfree(save_area);
-			return NULL;
-		}
-		dump_save_areas.areas = save_areas;
-	}
-	dump_save_areas.areas[cpu] = save_area;
-	return save_area;
-}
-
-/*
  * Return physical address for virtual address
  */
 static inline void *load_real_addr(void *addr)
@@ -122,7 +98,7 @@ static ssize_t copy_oldmem_page_zfcpdump(char *buf, size_t csize,
 {
 	int rc;
 
-	if (src < sclp_get_hsa_size()) {
+	if (src < sclp.hsa_size) {
 		rc = memcpy_hsa(buf, src, csize, userbuf);
 	} else {
 		if (userbuf)
@@ -215,7 +191,7 @@ static int remap_oldmem_pfn_range_zfcpdump(struct vm_area_struct *vma,
 					   unsigned long pfn,
 					   unsigned long size, pgprot_t prot)
 {
-	unsigned long hsa_end = sclp_get_hsa_size();
+	unsigned long hsa_end = sclp.hsa_size;
 	unsigned long size_hsa;
 
 	if (pfn < hsa_end >> PAGE_SHIFT) {
@@ -258,7 +234,7 @@ int copy_from_oldmem(void *dest, void *src, size_t count)
 				return rc;
 		}
 	} else {
-		unsigned long hsa_end = sclp_get_hsa_size();
+		unsigned long hsa_end = sclp.hsa_size;
 		if ((unsigned long) src < hsa_end) {
 			copied = min(count, hsa_end - (unsigned long) src);
 			rc = memcpy_hsa(dest, (unsigned long) src, copied, 0);
@@ -609,7 +585,7 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size)
 	if (elfcorehdr_addr != ELFCORE_ADDR_MAX)
 		return 0;
 	/* If we cannot get HSA size for zfcpdump return error */
-	if (ipl_info.type == IPL_TYPE_FCP_DUMP && !sclp_get_hsa_size())
+	if (ipl_info.type == IPL_TYPE_FCP_DUMP && !sclp.hsa_size)
 		return -ENODEV;
 
 	/* For kdump, exclude previous crashkernel memory */
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index c1f21aca7..6fca0e464 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -1457,23 +1457,24 @@ int
 debug_dflt_header_fn(debug_info_t * id, struct debug_view *view,
 			 int area, debug_entry_t * entry, char *out_buf)
 {
-	struct timespec time_spec;
+	struct timespec64 time_spec;
 	char *except_str;
 	unsigned long caller;
 	int rc = 0;
 	unsigned int level;
 
 	level = entry->id.fields.level;
-	stck_to_timespec(entry->id.stck, &time_spec);
+	stck_to_timespec64(entry->id.stck, &time_spec);
 
 	if (entry->id.fields.exception)
 		except_str = "*";
 	else
 		except_str = "-";
 	caller = ((unsigned long) entry->caller) & PSW_ADDR_INSN;
-	rc += sprintf(out_buf, "%02i %011lu:%06lu %1u %1s %02i %p  ",
-		      area, time_spec.tv_sec, time_spec.tv_nsec / 1000, level,
-		      except_str, entry->id.fields.cpuid, (void *) caller);
+	rc += sprintf(out_buf, "%02i %011lld:%06lu %1u %1s %02i %p  ",
+		      area, (long long)time_spec.tv_sec,
+		      time_spec.tv_nsec / 1000, level, except_str,
+		      entry->id.fields.cpuid, (void *)caller);
 	return rc;
 }
 EXPORT_SYMBOL(debug_dflt_header_fn);
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 99b44acbf..84062e7a7 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -178,17 +178,21 @@ _PIF_WORK	= (_PIF_PER_TRAP)
  */
 ENTRY(__switch_to)
 	stmg	%r6,%r15,__SF_GPRS(%r15)	# store gprs of prev task
-	stg	%r15,__THREAD_ksp(%r2)		# store kernel stack of prev
-	lg	%r4,__THREAD_info(%r2)		# get thread_info of prev
-	lg	%r5,__THREAD_info(%r3)		# get thread_info of next
+	lgr	%r1,%r2
+	aghi	%r1,__TASK_thread		# thread_struct of prev task
+	lg	%r4,__TASK_thread_info(%r2)	# get thread_info of prev
+	lg	%r5,__TASK_thread_info(%r3)	# get thread_info of next
+	stg	%r15,__THREAD_ksp(%r1)		# store kernel stack of prev
+	lgr	%r1,%r3
+	aghi	%r1,__TASK_thread		# thread_struct of next task
 	lgr	%r15,%r5
 	aghi	%r15,STACK_INIT			# end of kernel stack of next
 	stg	%r3,__LC_CURRENT		# store task struct of next
 	stg	%r5,__LC_THREAD_INFO		# store thread info of next
 	stg	%r15,__LC_KERNEL_STACK		# store end of kernel stack
+	lg	%r15,__THREAD_ksp(%r1)		# load kernel stack of next
 	lctl	%c4,%c4,__TASK_pid(%r3)		# load pid to control reg. 4
 	mvc	__LC_CURRENT_PID+4(4,%r0),__TASK_pid(%r3) # store pid of next
-	lg	%r15,__THREAD_ksp(%r3)		# load kernel stack of next
 	lmg	%r6,%r15,__SF_GPRS(%r15)	# load gprs of next task
 	br	%r14
 
@@ -417,6 +421,7 @@ ENTRY(pgm_check_handler)
 	LAST_BREAK %r14
 	lg	%r15,__LC_KERNEL_STACK
 	lg	%r14,__TI_task(%r12)
+	aghi	%r14,__TASK_thread	# pointer to thread_struct
 	lghi	%r13,__LC_PGM_TDB
 	tm	__LC_PGM_ILC+2,0x02	# check for transaction abort
 	jz	2f
@@ -1005,7 +1010,7 @@ ENTRY(sie64a)
 .Lsie_gmap:
 	lg	%r14,__SF_EMPTY(%r15)		# get control block pointer
 	oi	__SIE_PROG0C+3(%r14),1		# we are going into SIE now
-	tm	__SIE_PROG20+3(%r14),1		# last exit...
+	tm	__SIE_PROG20+3(%r14),3		# last exit...
 	jnz	.Lsie_done
 	LPP	__SF_EMPTY(%r15)		# set guest id
 	sie	0(%r14)
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index e6a1578fc..afe05bfb7 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1572,7 +1572,7 @@ static int param_set_sfb_size(const char *val, const struct kernel_param *kp)
 }
 
 #define param_check_sfb_size(name, p) __param_check(name, p, void)
-static struct kernel_param_ops param_ops_sfb_size = {
+static const struct kernel_param_ops param_ops_sfb_size = {
 	.set = param_set_sfb_size,
 	.get = param_get_sfb_size,
 };
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 7262fe438..ca070d260 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -128,9 +128,9 @@ __setup("condev=", condev_setup);
 static void __init set_preferred_console(void)
 {
 	if (MACHINE_IS_KVM) {
-		if (sclp_has_vt220())
+		if (sclp.has_vt220)
 			add_preferred_console("ttyS", 1, NULL);
-		else if (sclp_has_linemode())
+		else if (sclp.has_linemode)
 			add_preferred_console("ttyS", 0, NULL);
 		else
 			add_preferred_console("hvc", 0, NULL);
@@ -510,8 +510,8 @@ static void reserve_memory_end(void)
 {
 #ifdef CONFIG_CRASH_DUMP
 	if (ipl_info.type == IPL_TYPE_FCP_DUMP &&
-	    !OLDMEM_BASE && sclp_get_hsa_size()) {
-		memory_end = sclp_get_hsa_size();
+	    !OLDMEM_BASE && sclp.hsa_size) {
+		memory_end = sclp.hsa_size;
 		memory_end &= PAGE_MASK;
 		memory_end_set = 1;
 	}
@@ -576,7 +576,7 @@ static void __init reserve_crashkernel(void)
 		crash_base = low;
 	} else {
 		/* Find suitable area in free memory */
-		low = max_t(unsigned long, crash_size, sclp_get_hsa_size());
+		low = max_t(unsigned long, crash_size, sclp.hsa_size);
 		high = crash_base ? crash_base + crash_size : ULONG_MAX;
 
 		if (crash_base && crash_base < low) {
@@ -640,19 +640,24 @@ static void __init check_initrd(void)
 }
 
 /*
- * Reserve all kernel text
+ * Reserve memory used for lowcore/command line/kernel image.
  */
 static void __init reserve_kernel(void)
 {
-	unsigned long start_pfn;
-	start_pfn = PFN_UP(__pa(&_end));
+	unsigned long start_pfn = PFN_UP(__pa(&_end));
 
+#ifdef CONFIG_DMA_API_DEBUG
 	/*
-	 * Reserve memory used for lowcore/command line/kernel image.
+	 * DMA_API_DEBUG code stumbles over addresses from the
+	 * range [_ehead, _stext]. Mark the memory as reserved
+	 * so it is not used for CONFIG_DMA_API_DEBUG=y.
 	 */
+	memblock_reserve(0, PFN_PHYS(start_pfn));
+#else
 	memblock_reserve(0, (unsigned long)_ehead);
 	memblock_reserve((unsigned long)_stext, PFN_PHYS(start_pfn)
 			 - (unsigned long)_stext);
+#endif
 }
 
 static void __init reserve_elfcorehdr(void)
@@ -863,6 +868,11 @@ void __init setup_arch(char **cmdline_p)
 
 	check_initrd();
 	reserve_crashkernel();
+	/*
+	 * Be aware that smp_save_dump_cpus() triggers a system reset.
+	 * Therefore CPU and device initialization should be done afterwards.
+	 */
+	smp_save_dump_cpus();
 
 	setup_resources();
 	setup_vmcoreinfo();
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index efd2c1968..6f54c175f 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -31,6 +31,7 @@
 #include <linux/cpu.h>
 #include <linux/slab.h>
 #include <linux/crash_dump.h>
+#include <linux/memblock.h>
 #include <asm/asm-offsets.h>
 #include <asm/switch_to.h>
 #include <asm/facility.h>
@@ -69,7 +70,7 @@ struct pcpu {
 	u16 address;			/* physical cpu address */
 };
 
-static u8 boot_cpu_type;
+static u8 boot_core_type;
 static struct pcpu pcpu_devices[NR_CPUS];
 
 unsigned int smp_cpu_mt_shift;
@@ -531,15 +532,12 @@ EXPORT_SYMBOL(smp_ctl_clear_bit);
 
 #ifdef CONFIG_CRASH_DUMP
 
-static inline void __smp_store_cpu_state(int cpu, u16 address, int is_boot_cpu)
+static void __smp_store_cpu_state(struct save_area_ext *sa_ext, u16 address,
+				  int is_boot_cpu)
 {
-	void *lc = pcpu_devices[0].lowcore;
-	struct save_area_ext *sa_ext;
+	void *lc = (void *)(unsigned long) store_prefix();
 	unsigned long vx_sa;
 
-	sa_ext = dump_save_area_create(cpu);
-	if (!sa_ext)
-		panic("could not allocate memory for save area\n");
 	if (is_boot_cpu) {
 		/* Copy the registers of the boot CPU. */
 		copy_oldmem_page(1, (void *) &sa_ext->sa, sizeof(sa_ext->sa),
@@ -554,14 +552,33 @@ static inline void __smp_store_cpu_state(int cpu, u16 address, int is_boot_cpu)
 	if (!MACHINE_HAS_VX)
 		return;
 	/* Get the VX registers */
-	vx_sa = __get_free_page(GFP_KERNEL);
+	vx_sa = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
 	if (!vx_sa)
 		panic("could not allocate memory for VX save area\n");
 	__pcpu_sigp_relax(address, SIGP_STORE_ADDITIONAL_STATUS, vx_sa, NULL);
 	memcpy(sa_ext->vx_regs, (void *) vx_sa, sizeof(sa_ext->vx_regs));
-	free_page(vx_sa);
+	memblock_free(vx_sa, PAGE_SIZE);
 }
 
+int smp_store_status(int cpu)
+{
+	unsigned long vx_sa;
+	struct pcpu *pcpu;
+
+	pcpu = pcpu_devices + cpu;
+	if (__pcpu_sigp_relax(pcpu->address, SIGP_STOP_AND_STORE_STATUS,
+			      0, NULL) != SIGP_CC_ORDER_CODE_ACCEPTED)
+		return -EIO;
+	if (!MACHINE_HAS_VX)
+		return 0;
+	vx_sa = __pa(pcpu->lowcore->vector_save_area_addr);
+	__pcpu_sigp_relax(pcpu->address, SIGP_STORE_ADDITIONAL_STATUS,
+			  vx_sa, NULL);
+	return 0;
+}
+
+#endif /* CONFIG_CRASH_DUMP */
+
 /*
  * Collect CPU state of the previous, crashed system.
  * There are four cases:
@@ -589,10 +606,12 @@ static inline void __smp_store_cpu_state(int cpu, u16 address, int is_boot_cpu)
  *    old system. The ELF sections are picked up by the crash_dump code
  *    via elfcorehdr_addr.
  */
-static void __init smp_store_cpu_states(struct sclp_cpu_info *info)
+void __init smp_save_dump_cpus(void)
 {
-	unsigned int cpu, address, i, j;
-	int is_boot_cpu;
+#ifdef CONFIG_CRASH_DUMP
+	int addr, cpu, boot_cpu_addr, max_cpu_addr;
+	struct save_area_ext *sa_ext;
+	bool is_boot_cpu;
 
 	if (is_kdump_kernel())
 		/* Previous system stored the CPU states. Nothing to do. */
@@ -601,43 +620,37 @@ static void __init smp_store_cpu_states(struct sclp_cpu_info *info)
 		/* No previous system present, normal boot. */
 		return;
 	/* Set multi-threading state to the previous system. */
-	pcpu_set_smt(sclp_get_mtid_prev());
-	/* Collect CPU states. */
-	cpu = 0;
-	for (i = 0; i < info->configured; i++) {
-		/* Skip CPUs with different CPU type. */
-		if (info->has_cpu_type && info->cpu[i].type != boot_cpu_type)
+	pcpu_set_smt(sclp.mtid_prev);
+	max_cpu_addr = SCLP_MAX_CORES << sclp.mtid_prev;
+	for (cpu = 0, addr = 0; addr <= max_cpu_addr; addr++) {
+		if (__pcpu_sigp_relax(addr, SIGP_SENSE, 0, NULL) ==
+		    SIGP_CC_NOT_OPERATIONAL)
 			continue;
-		for (j = 0; j <= smp_cpu_mtid; j++, cpu++) {
-			address = (info->cpu[i].core_id << smp_cpu_mt_shift) + j;
-			is_boot_cpu = (address == pcpu_devices[0].address);
-			if (is_boot_cpu && !OLDMEM_BASE)
-				/* Skip boot CPU for standard zfcp dump. */
-				continue;
-			/* Get state for this CPu. */
-			__smp_store_cpu_state(cpu, address, is_boot_cpu);
-		}
+		cpu += 1;
 	}
-}
-
-int smp_store_status(int cpu)
-{
-	unsigned long vx_sa;
-	struct pcpu *pcpu;
-
-	pcpu = pcpu_devices + cpu;
-	if (__pcpu_sigp_relax(pcpu->address, SIGP_STOP_AND_STORE_STATUS,
-			      0, NULL) != SIGP_CC_ORDER_CODE_ACCEPTED)
-		return -EIO;
-	if (!MACHINE_HAS_VX)
-		return 0;
-	vx_sa = __pa(pcpu->lowcore->vector_save_area_addr);
-	__pcpu_sigp_relax(pcpu->address, SIGP_STORE_ADDITIONAL_STATUS,
-			  vx_sa, NULL);
-	return 0;
-}
-
+	dump_save_areas.areas = (void *)memblock_alloc(sizeof(void *) * cpu, 8);
+	dump_save_areas.count = cpu;
+	boot_cpu_addr = stap();
+	for (cpu = 0, addr = 0; addr <= max_cpu_addr; addr++) {
+		if (__pcpu_sigp_relax(addr, SIGP_SENSE, 0, NULL) ==
+		    SIGP_CC_NOT_OPERATIONAL)
+			continue;
+		sa_ext = (void *) memblock_alloc(sizeof(*sa_ext), 8);
+		dump_save_areas.areas[cpu] = sa_ext;
+		if (!sa_ext)
+			panic("could not allocate memory for save area\n");
+		is_boot_cpu = (addr == boot_cpu_addr);
+		cpu += 1;
+		if (is_boot_cpu && !OLDMEM_BASE)
+			/* Skip boot CPU for standard zfcp dump. */
+			continue;
+		/* Get state for this CPU. */
+		__smp_store_cpu_state(sa_ext, addr, is_boot_cpu);
+	}
+	diag308_reset();
+	pcpu_set_smt(0);
 #endif /* CONFIG_CRASH_DUMP */
+}
 
 void smp_cpu_set_polarization(int cpu, int val)
 {
@@ -649,21 +662,22 @@ int smp_cpu_get_polarization(int cpu)
 	return pcpu_devices[cpu].polarization;
 }
 
-static struct sclp_cpu_info *smp_get_cpu_info(void)
+static struct sclp_core_info *smp_get_core_info(void)
 {
 	static int use_sigp_detection;
-	struct sclp_cpu_info *info;
+	struct sclp_core_info *info;
 	int address;
 
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
-	if (info && (use_sigp_detection || sclp_get_cpu_info(info))) {
+	if (info && (use_sigp_detection || sclp_get_core_info(info))) {
 		use_sigp_detection = 1;
-		for (address = 0; address <= MAX_CPU_ADDRESS;
+		for (address = 0;
+		     address < (SCLP_MAX_CORES << smp_cpu_mt_shift);
 		     address += (1U << smp_cpu_mt_shift)) {
 			if (__pcpu_sigp_relax(address, SIGP_SENSE, 0, NULL) ==
 			    SIGP_CC_NOT_OPERATIONAL)
 				continue;
-			info->cpu[info->configured].core_id =
+			info->core[info->configured].core_id =
 				address >> smp_cpu_mt_shift;
 			info->configured++;
 		}
@@ -674,7 +688,7 @@ static struct sclp_cpu_info *smp_get_cpu_info(void)
 
 static int smp_add_present_cpu(int cpu);
 
-static int __smp_rescan_cpus(struct sclp_cpu_info *info, int sysfs_add)
+static int __smp_rescan_cpus(struct sclp_core_info *info, int sysfs_add)
 {
 	struct pcpu *pcpu;
 	cpumask_t avail;
@@ -685,9 +699,9 @@ static int __smp_rescan_cpus(struct sclp_cpu_info *info, int sysfs_add)
 	cpumask_xor(&avail, cpu_possible_mask, cpu_present_mask);
 	cpu = cpumask_first(&avail);
 	for (i = 0; (i < info->combined) && (cpu < nr_cpu_ids); i++) {
-		if (info->has_cpu_type && info->cpu[i].type != boot_cpu_type)
+		if (sclp.has_core_type && info->core[i].type != boot_core_type)
 			continue;
-		address = info->cpu[i].core_id << smp_cpu_mt_shift;
+		address = info->core[i].core_id << smp_cpu_mt_shift;
 		for (j = 0; j <= smp_cpu_mtid; j++) {
 			if (pcpu_find_address(cpu_present_mask, address + j))
 				continue;
@@ -713,41 +727,37 @@ static int __smp_rescan_cpus(struct sclp_cpu_info *info, int sysfs_add)
 static void __init smp_detect_cpus(void)
 {
 	unsigned int cpu, mtid, c_cpus, s_cpus;
-	struct sclp_cpu_info *info;
+	struct sclp_core_info *info;
 	u16 address;
 
 	/* Get CPU information */
-	info = smp_get_cpu_info();
+	info = smp_get_core_info();
 	if (!info)
 		panic("smp_detect_cpus failed to allocate memory\n");
 
 	/* Find boot CPU type */
-	if (info->has_cpu_type) {
+	if (sclp.has_core_type) {
 		address = stap();
 		for (cpu = 0; cpu < info->combined; cpu++)
-			if (info->cpu[cpu].core_id == address) {
+			if (info->core[cpu].core_id == address) {
 				/* The boot cpu dictates the cpu type. */
-				boot_cpu_type = info->cpu[cpu].type;
+				boot_core_type = info->core[cpu].type;
 				break;
 			}
 		if (cpu >= info->combined)
 			panic("Could not find boot CPU type");
 	}
 
-#ifdef CONFIG_CRASH_DUMP
-	/* Collect CPU state of previous system */
-	smp_store_cpu_states(info);
-#endif
-
 	/* Set multi-threading state for the current system */
-	mtid = sclp_get_mtid(boot_cpu_type);
+	mtid = boot_core_type ? sclp.mtid : sclp.mtid_cp;
 	mtid = (mtid < smp_max_threads) ? mtid : smp_max_threads - 1;
 	pcpu_set_smt(mtid);
 
 	/* Print number of CPUs */
 	c_cpus = s_cpus = 0;
 	for (cpu = 0; cpu < info->combined; cpu++) {
-		if (info->has_cpu_type && info->cpu[cpu].type != boot_cpu_type)
+		if (sclp.has_core_type &&
+		    info->core[cpu].type != boot_core_type)
 			continue;
 		if (cpu < info->configured)
 			c_cpus += smp_cpu_mtid + 1;
@@ -880,12 +890,13 @@ void __noreturn cpu_die(void)
 
 void __init smp_fill_possible_mask(void)
 {
-	unsigned int possible, sclp, cpu;
+	unsigned int possible, sclp_max, cpu;
 
-	sclp = min(smp_max_threads, sclp_get_mtid_max() + 1);
-	sclp = sclp_get_max_cpu()*sclp ?: nr_cpu_ids;
+	sclp_max = max(sclp.mtid, sclp.mtid_cp) + 1;
+	sclp_max = min(smp_max_threads, sclp_max);
+	sclp_max = sclp.max_cores * sclp_max ?: nr_cpu_ids;
 	possible = setup_possible_cpus ?: nr_cpu_ids;
-	possible = min(possible, sclp);
+	possible = min(possible, sclp_max);
 	for (cpu = 0; cpu < possible && cpu < nr_cpu_ids; cpu++)
 		set_cpu_possible(cpu, true);
 }
@@ -976,7 +987,7 @@ static ssize_t cpu_configure_store(struct device *dev,
 	case 0:
 		if (pcpu->state != CPU_STATE_CONFIGURED)
 			break;
-		rc = sclp_cpu_deconfigure(pcpu->address >> smp_cpu_mt_shift);
+		rc = sclp_core_deconfigure(pcpu->address >> smp_cpu_mt_shift);
 		if (rc)
 			break;
 		for (i = 0; i <= smp_cpu_mtid; i++) {
@@ -991,7 +1002,7 @@ static ssize_t cpu_configure_store(struct device *dev,
 	case 1:
 		if (pcpu->state != CPU_STATE_STANDBY)
 			break;
-		rc = sclp_cpu_configure(pcpu->address >> smp_cpu_mt_shift);
+		rc = sclp_core_configure(pcpu->address >> smp_cpu_mt_shift);
 		if (rc)
 			break;
 		for (i = 0; i <= smp_cpu_mtid; i++) {
@@ -1106,10 +1117,10 @@ out:
 
 int __ref smp_rescan_cpus(void)
 {
-	struct sclp_cpu_info *info;
+	struct sclp_core_info *info;
 	int nr;
 
-	info = smp_get_cpu_info();
+	info = smp_get_core_info();
 	if (!info)
 		return -ENOMEM;
 	get_online_cpus();
diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c
index d3236c9e2..39e2f41b6 100644
--- a/arch/s390/kernel/suspend.c
+++ b/arch/s390/kernel/suspend.c
@@ -9,10 +9,10 @@
 #include <linux/pfn.h>
 #include <linux/suspend.h>
 #include <linux/mm.h>
+#include <linux/pci.h>
 #include <asm/ctl_reg.h>
 #include <asm/ipl.h>
 #include <asm/cio.h>
-#include <asm/pci.h>
 #include <asm/sections.h>
 #include "entry.h"
 
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 170ddd201..9e733d965 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -76,7 +76,7 @@ unsigned long long monotonic_clock(void)
 }
 EXPORT_SYMBOL(monotonic_clock);
 
-void tod_to_timeval(__u64 todval, struct timespec *xt)
+void tod_to_timeval(__u64 todval, struct timespec64 *xt)
 {
 	unsigned long long sec;
 
@@ -181,12 +181,12 @@ static void timing_alert_interrupt(struct ext_code ext_code,
 static void etr_reset(void);
 static void stp_reset(void);
 
-void read_persistent_clock(struct timespec *ts)
+void read_persistent_clock64(struct timespec64 *ts)
 {
 	tod_to_timeval(get_tod_clock() - TOD_UNIX_EPOCH, ts);
 }
 
-void read_boot_clock(struct timespec *ts)
+void read_boot_clock64(struct timespec64 *ts)
 {
 	tod_to_timeval(sched_clock_base_cc - TOD_UNIX_EPOCH, ts);
 }
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 4d96c9f53..7bea81d8a 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -259,7 +259,7 @@ void vector_exception(struct pt_regs *regs)
 	}
 
 	/* get vector interrupt code from fpc */
-	asm volatile("stfpc %0" : "=m" (current->thread.fp_regs.fpc));
+	asm volatile("stfpc %0" : "=Q" (current->thread.fp_regs.fpc));
 	vic = (current->thread.fp_regs.fpc & 0xf00) >> 8;
 	switch (vic) {
 	case 1: /* invalid vector operation */
@@ -297,7 +297,7 @@ void data_exception(struct pt_regs *regs)
 
 	location = get_trap_ip(regs);
 
-	asm volatile("stfpc %0" : "=m" (current->thread.fp_regs.fpc));
+	asm volatile("stfpc %0" : "=Q" (current->thread.fp_regs.fpc));
 	/* Check for vector register enablement */
 	if (MACHINE_HAS_VX && !current->thread.vxrs &&
 	    (current->thread.fp_regs.fpc & FPC_DXC_MASK) == 0xfe00) {
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 9e3779e3e..7365e8a46 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -241,21 +241,6 @@ static int handle_prog(struct kvm_vcpu *vcpu)
 	return kvm_s390_inject_prog_irq(vcpu, &pgm_info);
 }
 
-static int handle_instruction_and_prog(struct kvm_vcpu *vcpu)
-{
-	int rc, rc2;
-
-	vcpu->stat.exit_instr_and_program++;
-	rc = handle_instruction(vcpu);
-	rc2 = handle_prog(vcpu);
-
-	if (rc == -EOPNOTSUPP)
-		vcpu->arch.sie_block->icptcode = 0x04;
-	if (rc)
-		return rc;
-	return rc2;
-}
-
 /**
  * handle_external_interrupt - used for external interruption interceptions
  *
@@ -355,7 +340,6 @@ static const intercept_handler_t intercept_funcs[] = {
 	[0x00 >> 2] = handle_noop,
 	[0x04 >> 2] = handle_instruction,
 	[0x08 >> 2] = handle_prog,
-	[0x0C >> 2] = handle_instruction_and_prog,
 	[0x10 >> 2] = handle_noop,
 	[0x14 >> 2] = handle_external_interrupt,
 	[0x18 >> 2] = handle_noop,
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index b745a109b..c98d89708 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -134,6 +134,8 @@ static unsigned long deliverable_irqs(struct kvm_vcpu *vcpu)
 
 	active_mask = pending_local_irqs(vcpu);
 	active_mask |= pending_floating_irqs(vcpu);
+	if (!active_mask)
+		return 0;
 
 	if (psw_extint_disabled(vcpu))
 		active_mask &= ~IRQ_PEND_EXT_MASK;
@@ -799,7 +801,7 @@ int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu)
 	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 (!sclp_has_sigpif())
+	if (!sclp.has_sigpif)
 		return test_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs);
 
 	return (sigp_ctrl & SIGP_CTRL_C) &&
@@ -941,12 +943,9 @@ int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
 	if (cpu_timer_irq_pending(vcpu))
 		set_bit(IRQ_PEND_EXT_CPU_TIMER, &li->pending_irqs);
 
-	do {
-		irqs = deliverable_irqs(vcpu);
+	while ((irqs = deliverable_irqs(vcpu)) && !rc) {
 		/* bits are in the order of interrupt priority */
 		irq_type = find_first_bit(&irqs, IRQ_PEND_COUNT);
-		if (irq_type == IRQ_PEND_COUNT)
-			break;
 		if (is_ioirq(irq_type)) {
 			rc = __deliver_io(vcpu, irq_type);
 		} else {
@@ -958,9 +957,7 @@ int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
 			}
 			rc = func(vcpu);
 		}
-		if (rc)
-			break;
-	} while (!rc);
+	}
 
 	set_intercept_indicators(vcpu);
 
@@ -1058,7 +1055,7 @@ static int __inject_extcall(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 	    kvm_get_vcpu(vcpu->kvm, src_id) == NULL)
 		return -EINVAL;
 
-	if (sclp_has_sigpif())
+	if (sclp.has_sigpif)
 		return __inject_extcall_sigpif(vcpu, src_id);
 
 	if (test_and_set_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs))
@@ -1340,12 +1337,54 @@ static int __inject_io(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
 	return 0;
 }
 
-static int __inject_vm(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
+/*
+ * Find a destination VCPU for a floating irq and kick it.
+ */
+static void __floating_irq_kick(struct kvm *kvm, u64 type)
 {
+	struct kvm_s390_float_interrupt *fi = &kvm->arch.float_int;
 	struct kvm_s390_local_interrupt *li;
+	struct kvm_vcpu *dst_vcpu;
+	int sigcpu, online_vcpus, nr_tries = 0;
+
+	online_vcpus = atomic_read(&kvm->online_vcpus);
+	if (!online_vcpus)
+		return;
+
+	/* find idle VCPUs first, then round robin */
+	sigcpu = find_first_bit(fi->idle_mask, online_vcpus);
+	if (sigcpu == online_vcpus) {
+		do {
+			sigcpu = fi->next_rr_cpu;
+			fi->next_rr_cpu = (fi->next_rr_cpu + 1) % online_vcpus;
+			/* avoid endless loops if all vcpus are stopped */
+			if (nr_tries++ >= online_vcpus)
+				return;
+		} while (is_vcpu_stopped(kvm_get_vcpu(kvm, sigcpu)));
+	}
+	dst_vcpu = kvm_get_vcpu(kvm, sigcpu);
+
+	/* make the VCPU drop out of the SIE, or wake it up if sleeping */
+	li = &dst_vcpu->arch.local_int;
+	spin_lock(&li->lock);
+	switch (type) {
+	case KVM_S390_MCHK:
+		atomic_set_mask(CPUSTAT_STOP_INT, li->cpuflags);
+		break;
+	case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX:
+		atomic_set_mask(CPUSTAT_IO_INT, li->cpuflags);
+		break;
+	default:
+		atomic_set_mask(CPUSTAT_EXT_INT, li->cpuflags);
+		break;
+	}
+	spin_unlock(&li->lock);
+	kvm_s390_vcpu_wakeup(dst_vcpu);
+}
+
+static int __inject_vm(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
+{
 	struct kvm_s390_float_interrupt *fi;
-	struct kvm_vcpu *dst_vcpu = NULL;
-	int sigcpu;
 	u64 type = READ_ONCE(inti->type);
 	int rc;
 
@@ -1373,32 +1412,8 @@ static int __inject_vm(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
 	if (rc)
 		return rc;
 
-	sigcpu = find_first_bit(fi->idle_mask, KVM_MAX_VCPUS);
-	if (sigcpu == KVM_MAX_VCPUS) {
-		do {
-			sigcpu = fi->next_rr_cpu++;
-			if (sigcpu == KVM_MAX_VCPUS)
-				sigcpu = fi->next_rr_cpu = 0;
-		} while (kvm_get_vcpu(kvm, sigcpu) == NULL);
-	}
-	dst_vcpu = kvm_get_vcpu(kvm, sigcpu);
-	li = &dst_vcpu->arch.local_int;
-	spin_lock(&li->lock);
-	switch (type) {
-	case KVM_S390_MCHK:
-		atomic_set_mask(CPUSTAT_STOP_INT, li->cpuflags);
-		break;
-	case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX:
-		atomic_set_mask(CPUSTAT_IO_INT, li->cpuflags);
-		break;
-	default:
-		atomic_set_mask(CPUSTAT_EXT_INT, li->cpuflags);
-		break;
-	}
-	spin_unlock(&li->lock);
-	kvm_s390_vcpu_wakeup(kvm_get_vcpu(kvm, sigcpu));
+	__floating_irq_kick(kvm, type);
 	return 0;
-
 }
 
 int kvm_s390_inject_vm(struct kvm *kvm,
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 8cd8e7b28..f32f843a3 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -36,6 +36,10 @@
 #include "kvm-s390.h"
 #include "gaccess.h"
 
+#define KMSG_COMPONENT "kvm-s390"
+#undef pr_fmt
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #define CREATE_TRACE_POINTS
 #include "trace.h"
 #include "trace-s390.h"
@@ -110,7 +114,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
 /* upper facilities limit for kvm */
 unsigned long kvm_s390_fac_list_mask[] = {
 	0xffe6fffbfcfdfc40UL,
-	0x005c800000000000UL,
+	0x005e800000000000UL,
 };
 
 unsigned long kvm_s390_fac_list_mask_size(void)
@@ -236,6 +240,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 {
 	int r;
 	unsigned long n;
+	struct kvm_memslots *slots;
 	struct kvm_memory_slot *memslot;
 	int is_dirty = 0;
 
@@ -245,7 +250,8 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 	if (log->slot >= KVM_USER_MEM_SLOTS)
 		goto out;
 
-	memslot = id_to_memslot(kvm->memslots, log->slot);
+	slots = kvm_memslots(kvm);
+	memslot = id_to_memslot(slots, log->slot);
 	r = -ENOENT;
 	if (!memslot->dirty_bitmap)
 		goto out;
@@ -454,10 +460,10 @@ static int kvm_s390_set_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
 
 	mutex_lock(&kvm->lock);
 	kvm->arch.epoch = gtod - host_tod;
-	kvm_for_each_vcpu(vcpu_idx, cur_vcpu, kvm) {
+	kvm_s390_vcpu_block_all(kvm);
+	kvm_for_each_vcpu(vcpu_idx, cur_vcpu, kvm)
 		cur_vcpu->arch.sie_block->epoch = kvm->arch.epoch;
-		exit_sie(cur_vcpu);
-	}
+	kvm_s390_vcpu_unblock_all(kvm);
 	mutex_unlock(&kvm->lock);
 	return 0;
 }
@@ -604,7 +610,7 @@ static int kvm_s390_get_machine(struct kvm *kvm, struct kvm_device_attr *attr)
 		goto out;
 	}
 	get_cpu_id((struct cpuid *) &mach->cpuid);
-	mach->ibc = sclp_get_ibc();
+	mach->ibc = sclp.ibc;
 	memcpy(&mach->fac_mask, kvm->arch.model.fac->mask,
 	       S390_ARCH_FAC_LIST_SIZE_BYTE);
 	memcpy((unsigned long *)&mach->fac_list, S390_lowcore.stfle_fac_list,
@@ -1068,7 +1074,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	       S390_ARCH_FAC_LIST_SIZE_BYTE);
 
 	kvm_s390_get_cpu_id(&kvm->arch.model.cpu_id);
-	kvm->arch.model.ibc = sclp_get_ibc() & 0x0fff;
+	kvm->arch.model.ibc = sclp.ibc & 0x0fff;
 
 	if (kvm_s390_crypto_init(kvm) < 0)
 		goto out_err;
@@ -1311,8 +1317,13 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 
 	atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH |
 						    CPUSTAT_SM |
-						    CPUSTAT_STOPPED |
-						    CPUSTAT_GED);
+						    CPUSTAT_STOPPED);
+
+	if (test_kvm_facility(vcpu->kvm, 78))
+		atomic_set_mask(CPUSTAT_GED2, &vcpu->arch.sie_block->cpuflags);
+	else if (test_kvm_facility(vcpu->kvm, 8))
+		atomic_set_mask(CPUSTAT_GED, &vcpu->arch.sie_block->cpuflags);
+
 	kvm_s390_vcpu_setup_model(vcpu);
 
 	vcpu->arch.sie_block->ecb   = 6;
@@ -1321,9 +1332,9 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 
 	vcpu->arch.sie_block->ecb2  = 8;
 	vcpu->arch.sie_block->eca   = 0xC1002000U;
-	if (sclp_has_siif())
+	if (sclp.has_siif)
 		vcpu->arch.sie_block->eca |= 1;
-	if (sclp_has_sigpif())
+	if (sclp.has_sigpif)
 		vcpu->arch.sie_block->eca |= 0x10000000U;
 	if (test_kvm_facility(vcpu->kvm, 129)) {
 		vcpu->arch.sie_block->eca |= 0x00020000;
@@ -1409,16 +1420,28 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
 	return kvm_s390_vcpu_has_irq(vcpu, 0);
 }
 
-void s390_vcpu_block(struct kvm_vcpu *vcpu)
+void kvm_s390_vcpu_block(struct kvm_vcpu *vcpu)
 {
 	atomic_set_mask(PROG_BLOCK_SIE, &vcpu->arch.sie_block->prog20);
+	exit_sie(vcpu);
 }
 
-void s390_vcpu_unblock(struct kvm_vcpu *vcpu)
+void kvm_s390_vcpu_unblock(struct kvm_vcpu *vcpu)
 {
 	atomic_clear_mask(PROG_BLOCK_SIE, &vcpu->arch.sie_block->prog20);
 }
 
+static void kvm_s390_vcpu_request(struct kvm_vcpu *vcpu)
+{
+	atomic_set_mask(PROG_REQUEST, &vcpu->arch.sie_block->prog20);
+	exit_sie(vcpu);
+}
+
+static void kvm_s390_vcpu_request_handled(struct kvm_vcpu *vcpu)
+{
+	atomic_clear_mask(PROG_REQUEST, &vcpu->arch.sie_block->prog20);
+}
+
 /*
  * Kick a guest cpu out of SIE and wait until SIE is not running.
  * If the CPU is not running (e.g. waiting as idle) the function will
@@ -1430,11 +1453,11 @@ void exit_sie(struct kvm_vcpu *vcpu)
 		cpu_relax();
 }
 
-/* Kick a guest cpu out of SIE and prevent SIE-reentry */
-void exit_sie_sync(struct kvm_vcpu *vcpu)
+/* Kick a guest cpu out of SIE to process a request synchronously */
+void kvm_s390_sync_request(int req, struct kvm_vcpu *vcpu)
 {
-	s390_vcpu_block(vcpu);
-	exit_sie(vcpu);
+	kvm_make_request(req, vcpu);
+	kvm_s390_vcpu_request(vcpu);
 }
 
 static void kvm_gmap_notifier(struct gmap *gmap, unsigned long address)
@@ -1447,8 +1470,7 @@ static void kvm_gmap_notifier(struct gmap *gmap, unsigned long address)
 		/* match against both prefix pages */
 		if (kvm_s390_get_prefix(vcpu) == (address & ~0x1000UL)) {
 			VCPU_EVENT(vcpu, 2, "gmap notifier for %lx", address);
-			kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu);
-			exit_sie_sync(vcpu);
+			kvm_s390_sync_request(KVM_REQ_MMU_RELOAD, vcpu);
 		}
 	}
 }
@@ -1721,7 +1743,9 @@ static bool ibs_enabled(struct kvm_vcpu *vcpu)
 static int kvm_s390_handle_requests(struct kvm_vcpu *vcpu)
 {
 retry:
-	s390_vcpu_unblock(vcpu);
+	kvm_s390_vcpu_request_handled(vcpu);
+	if (!vcpu->requests)
+		return 0;
 	/*
 	 * We use MMU_RELOAD just to re-arm the ipte notifier for the
 	 * guest prefix page. gmap_ipte_notify will wait on the ptl lock.
@@ -1993,12 +2017,14 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
 		 * As PF_VCPU will be used in fault handler, between
 		 * guest_enter and guest_exit should be no uaccess.
 		 */
-		preempt_disable();
-		kvm_guest_enter();
-		preempt_enable();
+		local_irq_disable();
+		__kvm_guest_enter();
+		local_irq_enable();
 		exit_reason = sie64a(vcpu->arch.sie_block,
 				     vcpu->run->s.regs.gprs);
-		kvm_guest_exit();
+		local_irq_disable();
+		__kvm_guest_exit();
+		local_irq_enable();
 		vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 
 		rc = vcpu_post_run(vcpu, exit_reason);
@@ -2068,7 +2094,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	if (!kvm_s390_user_cpu_state_ctrl(vcpu->kvm)) {
 		kvm_s390_vcpu_start(vcpu);
 	} else if (is_vcpu_stopped(vcpu)) {
-		pr_err_ratelimited("kvm-s390: can't run stopped vcpu %d\n",
+		pr_err_ratelimited("can't run stopped vcpu %d\n",
 				   vcpu->vcpu_id);
 		return -EINVAL;
 	}
@@ -2206,8 +2232,7 @@ int kvm_s390_vcpu_store_adtl_status(struct kvm_vcpu *vcpu, unsigned long addr)
 static void __disable_ibs_on_vcpu(struct kvm_vcpu *vcpu)
 {
 	kvm_check_request(KVM_REQ_ENABLE_IBS, vcpu);
-	kvm_make_request(KVM_REQ_DISABLE_IBS, vcpu);
-	exit_sie_sync(vcpu);
+	kvm_s390_sync_request(KVM_REQ_DISABLE_IBS, vcpu);
 }
 
 static void __disable_ibs_on_all_vcpus(struct kvm *kvm)
@@ -2223,8 +2248,7 @@ static void __disable_ibs_on_all_vcpus(struct kvm *kvm)
 static void __enable_ibs_on_vcpu(struct kvm_vcpu *vcpu)
 {
 	kvm_check_request(KVM_REQ_DISABLE_IBS, vcpu);
-	kvm_make_request(KVM_REQ_ENABLE_IBS, vcpu);
-	exit_sie_sync(vcpu);
+	kvm_s390_sync_request(KVM_REQ_ENABLE_IBS, vcpu);
 }
 
 void kvm_s390_vcpu_start(struct kvm_vcpu *vcpu)
@@ -2563,7 +2587,7 @@ int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
 /* Section: memory related */
 int kvm_arch_prepare_memory_region(struct kvm *kvm,
 				   struct kvm_memory_slot *memslot,
-				   struct kvm_userspace_memory_region *mem,
+				   const struct kvm_userspace_memory_region *mem,
 				   enum kvm_mr_change change)
 {
 	/* A few sanity checks. We can have memory slots which have to be
@@ -2581,8 +2605,9 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
 }
 
 void kvm_arch_commit_memory_region(struct kvm *kvm,
-				struct kvm_userspace_memory_region *mem,
+				const struct kvm_userspace_memory_region *mem,
 				const struct kvm_memory_slot *old,
+				const struct kvm_memory_slot *new,
 				enum kvm_mr_change change)
 {
 	int rc;
@@ -2601,7 +2626,7 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
 	rc = gmap_map_segment(kvm->arch.gmap, mem->userspace_addr,
 		mem->guest_phys_addr, mem->memory_size);
 	if (rc)
-		printk(KERN_WARNING "kvm-s390: failed to commit memory region\n");
+		pr_warn("failed to commit memory region\n");
 	return;
 }
 
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index ca108b90a..c5704786e 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -211,10 +211,10 @@ int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr);
 int kvm_s390_vcpu_store_adtl_status(struct kvm_vcpu *vcpu, unsigned long addr);
 void kvm_s390_vcpu_start(struct kvm_vcpu *vcpu);
 void kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu);
-void s390_vcpu_block(struct kvm_vcpu *vcpu);
-void s390_vcpu_unblock(struct kvm_vcpu *vcpu);
+void kvm_s390_vcpu_block(struct kvm_vcpu *vcpu);
+void kvm_s390_vcpu_unblock(struct kvm_vcpu *vcpu);
 void exit_sie(struct kvm_vcpu *vcpu);
-void exit_sie_sync(struct kvm_vcpu *vcpu);
+void kvm_s390_sync_request(int req, struct kvm_vcpu *vcpu);
 int kvm_s390_vcpu_setup_cmma(struct kvm_vcpu *vcpu);
 void kvm_s390_vcpu_unsetup_cmma(struct kvm_vcpu *vcpu);
 /* is cmma enabled */
@@ -228,6 +228,25 @@ int kvm_s390_handle_diag(struct kvm_vcpu *vcpu);
 int kvm_s390_inject_prog_irq(struct kvm_vcpu *vcpu,
 			     struct kvm_s390_pgm_info *pgm_info);
 
+static inline void kvm_s390_vcpu_block_all(struct kvm *kvm)
+{
+	int i;
+	struct kvm_vcpu *vcpu;
+
+	WARN_ON(!mutex_is_locked(&kvm->lock));
+	kvm_for_each_vcpu(i, vcpu, kvm)
+		kvm_s390_vcpu_block(vcpu);
+}
+
+static inline void kvm_s390_vcpu_unblock_all(struct kvm *kvm)
+{
+	int i;
+	struct kvm_vcpu *vcpu;
+
+	kvm_for_each_vcpu(i, vcpu, kvm)
+		kvm_s390_vcpu_unblock(vcpu);
+}
+
 /**
  * kvm_s390_inject_prog_cond - conditionally inject a program check
  * @vcpu: virtual cpu
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index d22d8ee1f..ad4242245 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -698,10 +698,14 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
 	case 0x00001000:
 		end = (start + (1UL << 20)) & ~((1UL << 20) - 1);
 		break;
-	/* We dont support EDAT2
 	case 0x00002000:
+		/* only support 2G frame size if EDAT2 is available and we are
+		   not in 24-bit addressing mode */
+		if (!test_kvm_facility(vcpu->kvm, 78) ||
+		    psw_bits(vcpu->arch.sie_block->gpsw).eaba == PSW_AMODE_24BIT)
+			return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
 		end = (start + (1UL << 31)) & ~((1UL << 31) - 1);
-		break;*/
+		break;
 	default:
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
 	}
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 76515bcea..4c8f5d7f9 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -399,7 +399,7 @@ static inline int do_exception(struct pt_regs *regs, int access)
 	 * user context.
 	 */
 	fault = VM_FAULT_BADCONTEXT;
-	if (unlikely(!user_space_fault(regs) || in_atomic() || !mm))
+	if (unlikely(!user_space_fault(regs) || faulthandler_disabled() || !mm))
 		goto out;
 
 	address = trans_exc_code & __FAIL_ADDR_MASK;
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index e617e74b7..fb4bf2c43 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -86,31 +86,16 @@ static inline pte_t __pmd_to_pte(pmd_t pmd)
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t pte)
 {
-	pmd_t pmd;
+	pmd_t pmd = __pte_to_pmd(pte);
 
-	pmd = __pte_to_pmd(pte);
-	if (!MACHINE_HAS_HPAGE) {
-		/* Emulated huge ptes loose the dirty and young bit */
-		pmd_val(pmd) &= ~_SEGMENT_ENTRY_ORIGIN;
-		pmd_val(pmd) |= pte_page(pte)[1].index;
-	} else
-		pmd_val(pmd) |= _SEGMENT_ENTRY_LARGE;
+	pmd_val(pmd) |= _SEGMENT_ENTRY_LARGE;
 	*(pmd_t *) ptep = pmd;
 }
 
 pte_t huge_ptep_get(pte_t *ptep)
 {
-	unsigned long origin;
-	pmd_t pmd;
+	pmd_t pmd = *(pmd_t *) ptep;
 
-	pmd = *(pmd_t *) ptep;
-	if (!MACHINE_HAS_HPAGE && pmd_present(pmd)) {
-		origin = pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN;
-		pmd_val(pmd) &= ~_SEGMENT_ENTRY_ORIGIN;
-		pmd_val(pmd) |= *(unsigned long *) origin;
-		/* Emulated huge ptes are young and dirty by definition */
-		pmd_val(pmd) |= _SEGMENT_ENTRY_YOUNG | _SEGMENT_ENTRY_DIRTY;
-	}
 	return __pmd_to_pte(pmd);
 }
 
@@ -125,45 +110,6 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
 	return pte;
 }
 
-int arch_prepare_hugepage(struct page *page)
-{
-	unsigned long addr = page_to_phys(page);
-	pte_t pte;
-	pte_t *ptep;
-	int i;
-
-	if (MACHINE_HAS_HPAGE)
-		return 0;
-
-	ptep = (pte_t *) pte_alloc_one(&init_mm, addr);
-	if (!ptep)
-		return -ENOMEM;
-
-	pte_val(pte) = addr;
-	for (i = 0; i < PTRS_PER_PTE; i++) {
-		set_pte_at(&init_mm, addr + i * PAGE_SIZE, ptep + i, pte);
-		pte_val(pte) += PAGE_SIZE;
-	}
-	page[1].index = (unsigned long) ptep;
-	return 0;
-}
-
-void arch_release_hugepage(struct page *page)
-{
-	pte_t *ptep;
-
-	if (MACHINE_HAS_HPAGE)
-		return;
-
-	ptep = (pte_t *) page[1].index;
-	if (!ptep)
-		return;
-	clear_table((unsigned long *) ptep, _PAGE_INVALID,
-		    PTRS_PER_PTE * sizeof(pte_t));
-	page_table_free(&init_mm, (unsigned long *) ptep);
-	page[1].index = 0;
-}
-
 pte_t *huge_pte_alloc(struct mm_struct *mm,
 			unsigned long addr, unsigned long sz)
 {
@@ -193,17 +139,9 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
 	return (pte_t *) pmdp;
 }
 
-int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep)
-{
-	return 0;
-}
-
 int pmd_huge(pmd_t pmd)
 {
-	if (!MACHINE_HAS_HPAGE)
-		return 0;
-
-	return !!(pmd_val(pmd) & _SEGMENT_ENTRY_LARGE);
+	return pmd_large(pmd);
 }
 
 int pud_huge(pud_t pud)
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 80875c43a..76e873748 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -213,7 +213,7 @@ unsigned long memory_block_size_bytes(void)
 	 * Make sure the memory block size is always greater
 	 * or equal than the memory increment size.
 	 */
-	return max_t(unsigned long, MIN_MEMORY_BLOCK_SIZE, sclp_get_rzm());
+	return max_t(unsigned long, MIN_MEMORY_BLOCK_SIZE, sclp.rzm);
 }
 
 #ifdef CONFIG_MEMORY_HOTREMOVE
diff --git a/arch/s390/mm/mem_detect.c b/arch/s390/mm/mem_detect.c
index 0f3604395..e00f0d5d2 100644
--- a/arch/s390/mm/mem_detect.c
+++ b/arch/s390/mm/mem_detect.c
@@ -31,8 +31,8 @@ void __init detect_memory_memblock(void)
 	unsigned long addr, size;
 	int type;
 
-	rzm = sclp_get_rzm();
-	rnmax = sclp_get_rnmax();
+	rzm = sclp.rzm;
+	rnmax = sclp.rnmax;
 	memsize = rzm * rnmax;
 	if (!rzm)
 		rzm = 1ULL << 17;
diff --git a/arch/s390/net/bpf_jit.h b/arch/s390/net/bpf_jit.h
index de156ba3b..f6498eec9 100644
--- a/arch/s390/net/bpf_jit.h
+++ b/arch/s390/net/bpf_jit.h
@@ -28,6 +28,9 @@ extern u8 sk_load_word[], sk_load_half[], sk_load_byte[];
  *	      | old backchain |     |
  *	      +---------------+     |
  *	      |   r15 - r6    |     |
+ *	      +---------------+     |
+ *	      | 4 byte align  |     |
+ *	      | tail_call_cnt |     |
  * BFP	   -> +===============+     |
  *	      |		      |     |
  *	      |   BPF stack   |     |
@@ -46,14 +49,17 @@ extern u8 sk_load_word[], sk_load_half[], sk_load_byte[];
  * R15	   -> +---------------+     + low
  *
  * We get 160 bytes stack space from calling function, but only use
- * 11 * 8 byte (old backchain + r15 - r6) for storing registers.
+ * 12 * 8 byte for old backchain, r15..r6, and tail_call_cnt.
  */
 #define STK_SPACE	(MAX_BPF_STACK + 8 + 4 + 4 + 160)
-#define STK_160_UNUSED	(160 - 11 * 8)
+#define STK_160_UNUSED	(160 - 12 * 8)
 #define STK_OFF		(STK_SPACE - STK_160_UNUSED)
 #define STK_OFF_TMP	160	/* Offset of tmp buffer on stack */
 #define STK_OFF_HLEN	168	/* Offset of SKB header length on stack */
 
+#define STK_OFF_R6	(160 - 11 * 8)	/* Offset of r6 on stack */
+#define STK_OFF_TCCNT	(160 - 12 * 8)	/* Offset of tail_call_cnt on stack */
+
 /* Offset to skip condition code check */
 #define OFF_OK		4
 
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index dc2d7aa56..8d2e51658 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -21,6 +21,7 @@
 #include <linux/netdevice.h>
 #include <linux/filter.h>
 #include <linux/init.h>
+#include <linux/bpf.h>
 #include <asm/cacheflush.h>
 #include <asm/dis.h>
 #include "bpf_jit.h"
@@ -40,6 +41,8 @@ struct bpf_jit {
 	int base_ip;		/* Base address for literal pool */
 	int ret0_ip;		/* Address of return 0 */
 	int exit_ip;		/* Address of exit */
+	int tail_call_start;	/* Tail call start offset */
+	int labels[1];		/* Labels for local jumps */
 };
 
 #define BPF_SIZE_MAX	4096	/* Max size for program */
@@ -49,6 +52,7 @@ struct bpf_jit {
 #define SEEN_RET0	4	/* ret0_ip points to a valid return 0 */
 #define SEEN_LITERAL	8	/* code uses literals */
 #define SEEN_FUNC	16	/* calls C functions */
+#define SEEN_TAIL_CALL	32	/* code uses tail calls */
 #define SEEN_STACK	(SEEN_FUNC | SEEN_MEM | SEEN_SKB)
 
 /*
@@ -60,6 +64,7 @@ struct bpf_jit {
 #define REG_L		(__MAX_BPF_REG+3)	/* Literal pool register */
 #define REG_15		(__MAX_BPF_REG+4)	/* Register 15 */
 #define REG_0		REG_W0			/* Register 0 */
+#define REG_1		REG_W1			/* Register 1 */
 #define REG_2		BPF_REG_1		/* Register 2 */
 #define REG_14		BPF_REG_0		/* Register 14 */
 
@@ -223,6 +228,24 @@ static inline void reg_set_seen(struct bpf_jit *jit, u32 b1)
 	REG_SET_SEEN(b3);					\
 })
 
+#define EMIT6_PCREL_LABEL(op1, op2, b1, b2, label, mask)	\
+({								\
+	int rel = (jit->labels[label] - jit->prg) >> 1;		\
+	_EMIT6(op1 | reg(b1, b2) << 16 | (rel & 0xffff),	\
+	       op2 | mask << 12);				\
+	REG_SET_SEEN(b1);					\
+	REG_SET_SEEN(b2);					\
+})
+
+#define EMIT6_PCREL_IMM_LABEL(op1, op2, b1, imm, label, mask)	\
+({								\
+	int rel = (jit->labels[label] - jit->prg) >> 1;		\
+	_EMIT6(op1 | (reg_high(b1) | mask) << 16 |		\
+		(rel & 0xffff), op2 | (imm & 0xff) << 8);	\
+	REG_SET_SEEN(b1);					\
+	BUILD_BUG_ON(((unsigned long) imm) > 0xff);		\
+})
+
 #define EMIT6_PCREL(op1, op2, b1, b2, i, off, mask)		\
 ({								\
 	/* Branch instruction needs 6 bytes */			\
@@ -286,7 +309,7 @@ static void jit_fill_hole(void *area, unsigned int size)
  */
 static void save_regs(struct bpf_jit *jit, u32 rs, u32 re)
 {
-	u32 off = 72 + (rs - 6) * 8;
+	u32 off = STK_OFF_R6 + (rs - 6) * 8;
 
 	if (rs == re)
 		/* stg %rs,off(%r15) */
@@ -301,7 +324,7 @@ static void save_regs(struct bpf_jit *jit, u32 rs, u32 re)
  */
 static void restore_regs(struct bpf_jit *jit, u32 rs, u32 re)
 {
-	u32 off = 72 + (rs - 6) * 8;
+	u32 off = STK_OFF_R6 + (rs - 6) * 8;
 
 	if (jit->seen & SEEN_STACK)
 		off += STK_OFF;
@@ -374,6 +397,16 @@ static void save_restore_regs(struct bpf_jit *jit, int op)
  */
 static void bpf_jit_prologue(struct bpf_jit *jit)
 {
+	if (jit->seen & SEEN_TAIL_CALL) {
+		/* xc STK_OFF_TCCNT(4,%r15),STK_OFF_TCCNT(%r15) */
+		_EMIT6(0xd703f000 | STK_OFF_TCCNT, 0xf000 | STK_OFF_TCCNT);
+	} else {
+		/* j tail_call_start: NOP if no tail calls are used */
+		EMIT4_PCREL(0xa7f40000, 6);
+		_EMIT2(0);
+	}
+	/* Tail calls have to skip above initialization */
+	jit->tail_call_start = jit->prg;
 	/* Save registers */
 	save_restore_regs(jit, REGS_SAVE);
 	/* Setup literal pool */
@@ -951,6 +984,75 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
 		EMIT4(0xb9040000, BPF_REG_0, REG_2);
 		break;
 	}
+	case BPF_JMP | BPF_CALL | BPF_X:
+		/*
+		 * Implicit input:
+		 *  B1: pointer to ctx
+		 *  B2: pointer to bpf_array
+		 *  B3: index in bpf_array
+		 */
+		jit->seen |= SEEN_TAIL_CALL;
+
+		/*
+		 * if (index >= array->map.max_entries)
+		 *         goto out;
+		 */
+
+		/* llgf %w1,map.max_entries(%b2) */
+		EMIT6_DISP_LH(0xe3000000, 0x0016, REG_W1, REG_0, BPF_REG_2,
+			      offsetof(struct bpf_array, map.max_entries));
+		/* clgrj %b3,%w1,0xa,label0: if %b3 >= %w1 goto out */
+		EMIT6_PCREL_LABEL(0xec000000, 0x0065, BPF_REG_3,
+				  REG_W1, 0, 0xa);
+
+		/*
+		 * if (tail_call_cnt++ > MAX_TAIL_CALL_CNT)
+		 *         goto out;
+		 */
+
+		if (jit->seen & SEEN_STACK)
+			off = STK_OFF_TCCNT + STK_OFF;
+		else
+			off = STK_OFF_TCCNT;
+		/* lhi %w0,1 */
+		EMIT4_IMM(0xa7080000, REG_W0, 1);
+		/* laal %w1,%w0,off(%r15) */
+		EMIT6_DISP_LH(0xeb000000, 0x00fa, REG_W1, REG_W0, REG_15, off);
+		/* clij %w1,MAX_TAIL_CALL_CNT,0x2,label0 */
+		EMIT6_PCREL_IMM_LABEL(0xec000000, 0x007f, REG_W1,
+				      MAX_TAIL_CALL_CNT, 0, 0x2);
+
+		/*
+		 * prog = array->prog[index];
+		 * if (prog == NULL)
+		 *         goto out;
+		 */
+
+		/* sllg %r1,%b3,3: %r1 = index * 8 */
+		EMIT6_DISP_LH(0xeb000000, 0x000d, REG_1, BPF_REG_3, REG_0, 3);
+		/* lg %r1,prog(%b2,%r1) */
+		EMIT6_DISP_LH(0xe3000000, 0x0004, REG_1, BPF_REG_2,
+			      REG_1, offsetof(struct bpf_array, prog));
+		/* clgij %r1,0,0x8,label0 */
+		EMIT6_PCREL_IMM_LABEL(0xec000000, 0x007d, REG_1, 0, 0, 0x8);
+
+		/*
+		 * Restore registers before calling function
+		 */
+		save_restore_regs(jit, REGS_RESTORE);
+
+		/*
+		 * goto *(prog->bpf_func + tail_call_start);
+		 */
+
+		/* lg %r1,bpf_func(%r1) */
+		EMIT6_DISP_LH(0xe3000000, 0x0004, REG_1, REG_1, REG_0,
+			      offsetof(struct bpf_prog, bpf_func));
+		/* bc 0xf,tail_call_start(%r1) */
+		_EMIT4(0x47f01000 + jit->tail_call_start);
+		/* out: */
+		jit->labels[0] = jit->prg;
+		break;
 	case BPF_JMP | BPF_EXIT: /* return b0 */
 		last = (i == fp->len - 1) ? 1 : 0;
 		if (last && !(jit->seen & SEEN_RET0))
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index bc927a09a..9cfa2ffaa 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -16,6 +16,7 @@
 #include <linux/fs.h>
 #include <linux/module.h>
 #include <asm/processor.h>
+#include <asm/perf_event.h>
 
 #include "../../../drivers/oprofile/oprof.h"
 
diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c
index 460fdb21c..ed2394dd1 100644
--- a/arch/s390/pci/pci_event.c
+++ b/arch/s390/pci/pci_event.c
@@ -75,7 +75,13 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
 	zpci_err_hex(ccdf, sizeof(*ccdf));
 
 	switch (ccdf->pec) {
-	case 0x0301: /* Standby -> Configured */
+	case 0x0301: /* Reserved|Standby -> Configured */
+		if (!zdev) {
+			ret = clp_add_pci_device(ccdf->fid, ccdf->fh, 0);
+			if (ret)
+				break;
+			zdev = get_zdev_by_fid(ccdf->fid);
+		}
 		if (!zdev || zdev->state != ZPCI_FN_STATE_STANDBY)
 			break;
 		zdev->state = ZPCI_FN_STATE_CONFIGURED;