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-rw-r--r--arch/s390/Kconfig30
-rw-r--r--arch/s390/Kconfig.debug5
-rw-r--r--arch/s390/Makefile16
-rw-r--r--arch/s390/crypto/aes_s390.c1
-rw-r--r--arch/s390/crypto/ghash_s390.c1
-rw-r--r--arch/s390/crypto/sha1_s390.c1
-rw-r--r--arch/s390/crypto/sha256_s390.c2
-rw-r--r--arch/s390/crypto/sha512_s390.c2
-rw-r--r--arch/s390/include/asm/ftrace.h6
-rw-r--r--arch/s390/include/asm/kvm_host.h11
-rw-r--r--arch/s390/include/uapi/asm/kvm.h5
-rw-r--r--arch/s390/include/uapi/asm/socket.h3
-rw-r--r--arch/s390/kernel/ebcdic.c36
-rw-r--r--arch/s390/kernel/ftrace.c2
-rw-r--r--arch/s390/kernel/mcount.S2
-rw-r--r--arch/s390/kernel/perf_cpum_sf.c2
-rw-r--r--arch/s390/kernel/syscalls/Makefile6
-rw-r--r--arch/s390/kvm/kvm-s390.c301
-rw-r--r--arch/s390/kvm/priv.c40
-rw-r--r--arch/s390/kvm/vsie.c11
-rw-r--r--arch/s390/mm/fault.c13
-rw-r--r--arch/s390/purgatory/Makefile3
-rw-r--r--arch/s390/tools/gen_facilities.c3
23 files changed, 273 insertions, 229 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 4b3476d785f7..9a9c7a6fe925 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -135,6 +135,7 @@ config S390
select HAVE_DYNAMIC_FTRACE
select HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_EFFICIENT_UNALIGNED_ACCESS
+ select HAVE_FENTRY
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
@@ -157,6 +158,7 @@ config S390
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MEMBLOCK_PHYS_MAP
select HAVE_MOD_ARCH_SPECIFIC
+ select HAVE_NOP_MCOUNT
select HAVE_OPROFILE
select HAVE_PERF_EVENTS
select HAVE_REGS_AND_STACK_ACCESS_API
@@ -184,10 +186,6 @@ config PGTABLE_LEVELS
int
default 5
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
source "kernel/livepatch/Kconfig"
menu "Processor type and features"
@@ -515,8 +513,6 @@ config SCHED_TOPOLOGY
making when dealing with machines that have multi-threading,
multiple cores or multiple books.
-source kernel/Kconfig.preempt
-
source kernel/Kconfig.hz
config KEXEC
@@ -627,8 +623,6 @@ config FORCE_MAX_ZONEORDER
int
default "9"
-source "mm/Kconfig"
-
config MAX_PHYSMEM_BITS
int "Maximum size of supported physical memory in bits (42-53)"
range 42 53
@@ -798,10 +792,6 @@ config CRASH_DUMP
endmenu
-menu "Executable file formats / Emulations"
-
-source "fs/Kconfig.binfmt"
-
config SECCOMP
def_bool y
prompt "Enable seccomp to safely compute untrusted bytecode"
@@ -819,8 +809,6 @@ config SECCOMP
If unsure, say Y.
-endmenu
-
menu "Power Management"
config ARCH_HIBERNATION_POSSIBLE
@@ -830,30 +818,16 @@ source "kernel/power/Kconfig"
endmenu
-source "net/Kconfig"
-
config PCMCIA
def_bool n
config CCW
def_bool y
-source "drivers/Kconfig"
-
config HAVE_PNETID
tristate
default (SMC || CCWGROUP)
-source "fs/Kconfig"
-
-source "arch/s390/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
-
menu "Virtualization"
config PFAULT
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 2cfdfbf8d320..190527560b2c 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -1,11 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
-menu "Kernel hacking"
config TRACE_IRQFLAGS_SUPPORT
def_bool y
-source "lib/Kconfig.debug"
-
config S390_PTDUMP
bool "Export kernel pagetable layout to userspace via debugfs"
depends on DEBUG_KERNEL
@@ -20,5 +17,3 @@ config S390_PTDUMP
config EARLY_PRINTK
def_bool y
-
-endmenu
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index eee6703093c3..ba6d122526fb 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -96,13 +96,15 @@ ifdef CONFIG_EXPOLINE
endif
ifdef CONFIG_FUNCTION_TRACER
-# make use of hotpatch feature if the compiler supports it
-cc_hotpatch := -mhotpatch=0,3
-ifeq ($(call cc-option-yn,$(cc_hotpatch)),y)
-CC_FLAGS_FTRACE := $(cc_hotpatch)
-KBUILD_AFLAGS += -DCC_USING_HOTPATCH
-KBUILD_CFLAGS += -DCC_USING_HOTPATCH
-endif
+ ifeq ($(call cc-option-yn,-mfentry -mnop-mcount),n)
+ # make use of hotpatch feature if the compiler supports it
+ cc_hotpatch := -mhotpatch=0,3
+ ifeq ($(call cc-option-yn,$(cc_hotpatch)),y)
+ CC_FLAGS_FTRACE := $(cc_hotpatch)
+ KBUILD_AFLAGS += -DCC_USING_HOTPATCH
+ KBUILD_CFLAGS += -DCC_USING_HOTPATCH
+ endif
+ endif
endif
# Test CFI features of binutils
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index ad47abd08630..c54cb26eb7f5 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -1035,7 +1035,6 @@ static struct aead_alg gcm_aes_aead = {
.chunksize = AES_BLOCK_SIZE,
.base = {
- .cra_flags = CRYPTO_ALG_TYPE_AEAD,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct s390_aes_ctx),
.cra_priority = 900,
diff --git a/arch/s390/crypto/ghash_s390.c b/arch/s390/crypto/ghash_s390.c
index 3b7f96c9eead..86aed30fad3a 100644
--- a/arch/s390/crypto/ghash_s390.c
+++ b/arch/s390/crypto/ghash_s390.c
@@ -128,7 +128,6 @@ static struct shash_alg ghash_alg = {
.cra_name = "ghash",
.cra_driver_name = "ghash-s390",
.cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_SHASH,
.cra_blocksize = GHASH_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct ghash_ctx),
.cra_module = THIS_MODULE,
diff --git a/arch/s390/crypto/sha1_s390.c b/arch/s390/crypto/sha1_s390.c
index a00c17f761c1..009572e8276d 100644
--- a/arch/s390/crypto/sha1_s390.c
+++ b/arch/s390/crypto/sha1_s390.c
@@ -78,7 +78,6 @@ static struct shash_alg alg = {
.cra_name = "sha1",
.cra_driver_name= "sha1-s390",
.cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_SHASH,
.cra_blocksize = SHA1_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
diff --git a/arch/s390/crypto/sha256_s390.c b/arch/s390/crypto/sha256_s390.c
index 944aa6b237cd..62833a1d8724 100644
--- a/arch/s390/crypto/sha256_s390.c
+++ b/arch/s390/crypto/sha256_s390.c
@@ -71,7 +71,6 @@ static struct shash_alg sha256_alg = {
.cra_name = "sha256",
.cra_driver_name= "sha256-s390",
.cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_SHASH,
.cra_blocksize = SHA256_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
@@ -108,7 +107,6 @@ static struct shash_alg sha224_alg = {
.cra_name = "sha224",
.cra_driver_name= "sha224-s390",
.cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_SHASH,
.cra_blocksize = SHA224_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
diff --git a/arch/s390/crypto/sha512_s390.c b/arch/s390/crypto/sha512_s390.c
index b17eded532b1..be589c340d15 100644
--- a/arch/s390/crypto/sha512_s390.c
+++ b/arch/s390/crypto/sha512_s390.c
@@ -76,7 +76,6 @@ static struct shash_alg sha512_alg = {
.cra_name = "sha512",
.cra_driver_name= "sha512-s390",
.cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_SHASH,
.cra_blocksize = SHA512_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
@@ -115,7 +114,6 @@ static struct shash_alg sha384_alg = {
.cra_name = "sha384",
.cra_driver_name= "sha384-s390",
.cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_SHASH,
.cra_blocksize = SHA384_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct s390_sha_ctx),
.cra_module = THIS_MODULE,
diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h
index cfccc0edd00d..8ea270fdc7fb 100644
--- a/arch/s390/include/asm/ftrace.h
+++ b/arch/s390/include/asm/ftrace.h
@@ -4,7 +4,7 @@
#define ARCH_SUPPORTS_FTRACE_OPS 1
-#ifdef CC_USING_HOTPATCH
+#if defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT)
#define MCOUNT_INSN_SIZE 6
#else
#define MCOUNT_INSN_SIZE 24
@@ -42,7 +42,7 @@ struct ftrace_insn {
static inline void ftrace_generate_nop_insn(struct ftrace_insn *insn)
{
#ifdef CONFIG_FUNCTION_TRACER
-#ifdef CC_USING_HOTPATCH
+#if defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT)
/* brcl 0,0 */
insn->opc = 0xc004;
insn->disp = 0;
@@ -57,7 +57,7 @@ static inline void ftrace_generate_nop_insn(struct ftrace_insn *insn)
static inline int is_ftrace_nop(struct ftrace_insn *insn)
{
#ifdef CONFIG_FUNCTION_TRACER
-#ifdef CC_USING_HOTPATCH
+#if defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT)
if (insn->disp == 0)
return 1;
#else
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index a2188e309bd6..29c940bf8506 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -269,6 +269,7 @@ struct kvm_s390_sie_block {
__u8 reserved1c0[8]; /* 0x01c0 */
#define ECD_HOSTREGMGMT 0x20000000
#define ECD_MEF 0x08000000
+#define ECD_ETOKENF 0x02000000
__u32 ecd; /* 0x01c8 */
__u8 reserved1cc[18]; /* 0x01cc */
__u64 pp; /* 0x01de */
@@ -655,6 +656,7 @@ struct kvm_vcpu_arch {
seqcount_t cputm_seqcount;
__u64 cputm_start;
bool gs_enabled;
+ bool skey_enabled;
};
struct kvm_vm_stat {
@@ -793,12 +795,6 @@ struct kvm_s390_vsie {
struct page *pages[KVM_MAX_VCPUS];
};
-struct kvm_s390_migration_state {
- unsigned long bitmap_size; /* in bits (number of guest pages) */
- atomic64_t dirty_pages; /* number of dirty pages */
- unsigned long *pgste_bitmap;
-};
-
struct kvm_arch{
void *sca;
int use_esca;
@@ -828,7 +824,8 @@ struct kvm_arch{
struct kvm_s390_vsie vsie;
u8 epdx;
u64 epoch;
- struct kvm_s390_migration_state *migration_state;
+ int migration_mode;
+ atomic64_t cmma_dirty_pages;
/* subset of available cpu features enabled by user space */
DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS);
struct kvm_s390_gisa *gisa;
diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h
index 4cdaa55fabfe..9a50f02b9894 100644
--- a/arch/s390/include/uapi/asm/kvm.h
+++ b/arch/s390/include/uapi/asm/kvm.h
@@ -4,7 +4,7 @@
/*
* KVM s390 specific structures and definitions
*
- * Copyright IBM Corp. 2008
+ * Copyright IBM Corp. 2008, 2018
*
* Author(s): Carsten Otte <cotte@de.ibm.com>
* Christian Borntraeger <borntraeger@de.ibm.com>
@@ -225,6 +225,7 @@ struct kvm_guest_debug_arch {
#define KVM_SYNC_FPRS (1UL << 8)
#define KVM_SYNC_GSCB (1UL << 9)
#define KVM_SYNC_BPBC (1UL << 10)
+#define KVM_SYNC_ETOKEN (1UL << 11)
/* length and alignment of the sdnx as a power of two */
#define SDNXC 8
#define SDNXL (1UL << SDNXC)
@@ -258,6 +259,8 @@ struct kvm_sync_regs {
struct {
__u64 reserved1[2];
__u64 gscb[4];
+ __u64 etoken;
+ __u64 etoken_extension;
};
};
};
diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h
index 3510c0fd06f4..39d901476ee5 100644
--- a/arch/s390/include/uapi/asm/socket.h
+++ b/arch/s390/include/uapi/asm/socket.h
@@ -111,4 +111,7 @@
#define SO_ZEROCOPY 60
+#define SO_TXTIME 61
+#define SCM_TXTIME SO_TXTIME
+
#endif /* _ASM_SOCKET_H */
diff --git a/arch/s390/kernel/ebcdic.c b/arch/s390/kernel/ebcdic.c
index c15caeab1dbf..7f8246c9be08 100644
--- a/arch/s390/kernel/ebcdic.c
+++ b/arch/s390/kernel/ebcdic.c
@@ -111,15 +111,15 @@ __u8 _ebcasc[256] =
0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04,
/* 0x38 -SBS -IT -RFF -CU3 DC4 NAK ---- SUB */
0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A,
- /* 0x40 SP RSP ---- */
+ /* 0x40 SP RSP ä ---- */
0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86,
/* 0x48 . < ( + | */
0x87, 0xA4, 0x9B, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
/* 0x50 & ---- */
0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07,
- /* 0x58 ! $ * ) ; */
+ /* 0x58 ß ! $ * ) ; */
0x8D, 0xE1, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0xAA,
- /* 0x60 - / ---- ---- ---- ---- */
+ /* 0x60 - / ---- Ä ---- ---- ---- */
0x2D, 0x2F, 0x07, 0x8E, 0x07, 0x07, 0x07, 0x8F,
/* 0x68 ---- , % _ > ? */
0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
@@ -131,7 +131,7 @@ __u8 _ebcasc[256] =
0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
/* 0x88 h i ---- ---- ---- */
0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1,
- /* 0x90 j k l m n o p */
+ /* 0x90 ° j k l m n o p */
0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
/* 0x98 q r ---- ---- */
0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07,
@@ -139,25 +139,25 @@ __u8 _ebcasc[256] =
0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
/* 0xA8 y z ---- ---- ---- ---- */
0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07,
- /* 0xB0 ^ ---- ---- */
+ /* 0xB0 ^ ---- § ---- */
0x5E, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC,
/* 0xB8 ---- [ ] ---- ---- ---- ---- */
0xAB, 0x07, 0x5B, 0x5D, 0x07, 0x07, 0x07, 0x07,
/* 0xC0 { A B C D E F G */
0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
- /* 0xC8 H I ---- ---- */
+ /* 0xC8 H I ---- ö ---- */
0x48, 0x49, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07,
/* 0xD0 } J K L M N O P */
0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
- /* 0xD8 Q R ---- */
+ /* 0xD8 Q R ---- ü */
0x51, 0x52, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98,
/* 0xE0 \ S T U V W X */
0x5C, 0xF6, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
- /* 0xE8 Y Z ---- ---- ---- ---- */
+ /* 0xE8 Y Z ---- Ö ---- ---- ---- */
0x59, 0x5A, 0xFD, 0x07, 0x99, 0x07, 0x07, 0x07,
/* 0xF0 0 1 2 3 4 5 6 7 */
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
- /* 0xF8 8 9 ---- ---- ---- ---- ---- */
+ /* 0xF8 8 9 ---- ---- Ü ---- ---- ---- */
0x38, 0x39, 0x07, 0x07, 0x9A, 0x07, 0x07, 0x07
};
@@ -260,15 +260,15 @@ __u8 _ebcasc_500[256] =
0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04,
/* 0x38 -SBS -IT -RFF -CU3 DC4 NAK ---- SUB */
0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A,
- /* 0x40 SP RSP ---- */
+ /* 0x40 SP RSP ä ---- */
0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86,
/* 0x48 [ . < ( + ! */
0x87, 0xA4, 0x5B, 0x2E, 0x3C, 0x28, 0x2B, 0x21,
/* 0x50 & ---- */
0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07,
- /* 0x58 ] $ * ) ; ^ */
+ /* 0x58 ß ] $ * ) ; ^ */
0x8D, 0xE1, 0x5D, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
- /* 0x60 - / ---- ---- ---- ---- */
+ /* 0x60 - / ---- Ä ---- ---- ---- */
0x2D, 0x2F, 0x07, 0x8E, 0x07, 0x07, 0x07, 0x8F,
/* 0x68 ---- , % _ > ? */
0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
@@ -280,7 +280,7 @@ __u8 _ebcasc_500[256] =
0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
/* 0x88 h i ---- ---- ---- */
0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1,
- /* 0x90 j k l m n o p */
+ /* 0x90 ° j k l m n o p */
0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
/* 0x98 q r ---- ---- */
0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07,
@@ -288,25 +288,25 @@ __u8 _ebcasc_500[256] =
0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
/* 0xA8 y z ---- ---- ---- ---- */
0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07,
- /* 0xB0 ---- ---- */
+ /* 0xB0 ---- § ---- */
0x9B, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC,
/* 0xB8 ---- | ---- ---- ---- ---- */
0xAB, 0x07, 0xAA, 0x7C, 0x07, 0x07, 0x07, 0x07,
/* 0xC0 { A B C D E F G */
0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
- /* 0xC8 H I ---- ---- */
+ /* 0xC8 H I ---- ö ---- */
0x48, 0x49, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07,
/* 0xD0 } J K L M N O P */
0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
- /* 0xD8 Q R ---- */
+ /* 0xD8 Q R ---- ü */
0x51, 0x52, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98,
/* 0xE0 \ S T U V W X */
0x5C, 0xF6, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
- /* 0xE8 Y Z ---- ---- ---- ---- */
+ /* 0xE8 Y Z ---- Ö ---- ---- ---- */
0x59, 0x5A, 0xFD, 0x07, 0x99, 0x07, 0x07, 0x07,
/* 0xF0 0 1 2 3 4 5 6 7 */
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
- /* 0xF8 8 9 ---- ---- ---- ---- ---- */
+ /* 0xF8 8 9 ---- ---- Ü ---- ---- ---- */
0x38, 0x39, 0x07, 0x07, 0x9A, 0x07, 0x07, 0x07
};
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index dc76d813e420..84be7f02d0c2 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -61,7 +61,7 @@ unsigned long ftrace_plt;
static inline void ftrace_generate_orig_insn(struct ftrace_insn *insn)
{
-#ifdef CC_USING_HOTPATCH
+#if defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT)
/* brcl 0,0 */
insn->opc = 0xc004;
insn->disp = 0;
diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S
index 27110f3294ed..e93fbf02490c 100644
--- a/arch/s390/kernel/mcount.S
+++ b/arch/s390/kernel/mcount.S
@@ -35,7 +35,7 @@ ENTRY(ftrace_caller)
.globl ftrace_regs_caller
.set ftrace_regs_caller,ftrace_caller
lgr %r1,%r15
-#ifndef CC_USING_HOTPATCH
+#if !(defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT))
aghi %r0,MCOUNT_RETURN_FIXUP
#endif
aghi %r15,-STACK_FRAME_SIZE
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index cb198d4a6dca..5c53e977be62 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -665,7 +665,7 @@ static void cpumsf_output_event_pid(struct perf_event *event,
goto out;
/* Update the process ID (see also kernel/events/core.c) */
- data->tid_entry.pid = cpumsf_pid_type(event, pid, __PIDTYPE_TGID);
+ data->tid_entry.pid = cpumsf_pid_type(event, pid, PIDTYPE_TGID);
data->tid_entry.tid = cpumsf_pid_type(event, pid, PIDTYPE_PID);
perf_output_sample(&handle, &header, data, event);
diff --git a/arch/s390/kernel/syscalls/Makefile b/arch/s390/kernel/syscalls/Makefile
index 8ff96c08955f..4d929edc80a6 100644
--- a/arch/s390/kernel/syscalls/Makefile
+++ b/arch/s390/kernel/syscalls/Makefile
@@ -25,15 +25,15 @@ _dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
$(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
define filechk_syshdr
- $(CONFIG_SHELL) '$(systbl)' -H -a $(syshdr_abi_$(basetarget)) -f "$2"
+ $(CONFIG_SHELL) '$(systbl)' -H -a $(syshdr_abi_$(basetarget)) -f "$2" < $<
endef
define filechk_sysnr
- $(CONFIG_SHELL) '$(systbl)' -N -a $(sysnr_abi_$(basetarget))
+ $(CONFIG_SHELL) '$(systbl)' -N -a $(sysnr_abi_$(basetarget)) < $<
endef
define filechk_syscalls
- $(CONFIG_SHELL) '$(systbl)' -S
+ $(CONFIG_SHELL) '$(systbl)' -S < $<
endef
syshdr_abi_unistd_32 := common,32
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index f9d90337e64a..91ad4a9425c0 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -906,54 +906,37 @@ static void kvm_s390_sync_request_broadcast(struct kvm *kvm, int req)
*/
static int kvm_s390_vm_start_migration(struct kvm *kvm)
{
- struct kvm_s390_migration_state *mgs;
struct kvm_memory_slot *ms;
- /* should be the only one */
struct kvm_memslots *slots;
- unsigned long ram_pages;
+ unsigned long ram_pages = 0;
int slotnr;
/* migration mode already enabled */
- if (kvm->arch.migration_state)
+ if (kvm->arch.migration_mode)
return 0;
-
slots = kvm_memslots(kvm);
if (!slots || !slots->used_slots)
return -EINVAL;
- mgs = kzalloc(sizeof(*mgs), GFP_KERNEL);
- if (!mgs)
- return -ENOMEM;
- kvm->arch.migration_state = mgs;
-
- if (kvm->arch.use_cmma) {
+ if (!kvm->arch.use_cmma) {
+ kvm->arch.migration_mode = 1;
+ return 0;
+ }
+ /* mark all the pages in active slots as dirty */
+ for (slotnr = 0; slotnr < slots->used_slots; slotnr++) {
+ ms = slots->memslots + slotnr;
/*
- * Get the first slot. They are reverse sorted by base_gfn, so
- * the first slot is also the one at the end of the address
- * space. We have verified above that at least one slot is
- * present.
+ * The second half of the bitmap is only used on x86,
+ * and would be wasted otherwise, so we put it to good
+ * use here to keep track of the state of the storage
+ * attributes.
*/
- ms = slots->memslots;
- /* round up so we only use full longs */
- ram_pages = roundup(ms->base_gfn + ms->npages, BITS_PER_LONG);
- /* allocate enough bytes to store all the bits */
- mgs->pgste_bitmap = vmalloc(ram_pages / 8);
- if (!mgs->pgste_bitmap) {
- kfree(mgs);
- kvm->arch.migration_state = NULL;
- return -ENOMEM;
- }
-
- mgs->bitmap_size = ram_pages;
- atomic64_set(&mgs->dirty_pages, ram_pages);
- /* mark all the pages in active slots as dirty */
- for (slotnr = 0; slotnr < slots->used_slots; slotnr++) {
- ms = slots->memslots + slotnr;
- bitmap_set(mgs->pgste_bitmap, ms->base_gfn, ms->npages);
- }
-
- kvm_s390_sync_request_broadcast(kvm, KVM_REQ_START_MIGRATION);
+ memset(kvm_second_dirty_bitmap(ms), 0xff, kvm_dirty_bitmap_bytes(ms));
+ ram_pages += ms->npages;
}
+ atomic64_set(&kvm->arch.cmma_dirty_pages, ram_pages);
+ kvm->arch.migration_mode = 1;
+ kvm_s390_sync_request_broadcast(kvm, KVM_REQ_START_MIGRATION);
return 0;
}
@@ -963,21 +946,12 @@ static int kvm_s390_vm_start_migration(struct kvm *kvm)
*/
static int kvm_s390_vm_stop_migration(struct kvm *kvm)
{
- struct kvm_s390_migration_state *mgs;
-
/* migration mode already disabled */
- if (!kvm->arch.migration_state)
+ if (!kvm->arch.migration_mode)
return 0;
- mgs = kvm->arch.migration_state;
- kvm->arch.migration_state = NULL;
-
- if (kvm->arch.use_cmma) {
+ kvm->arch.migration_mode = 0;
+ if (kvm->arch.use_cmma)
kvm_s390_sync_request_broadcast(kvm, KVM_REQ_STOP_MIGRATION);
- /* We have to wait for the essa emulation to finish */
- synchronize_srcu(&kvm->srcu);
- vfree(mgs->pgste_bitmap);
- }
- kfree(mgs);
return 0;
}
@@ -1005,7 +979,7 @@ static int kvm_s390_vm_set_migration(struct kvm *kvm,
static int kvm_s390_vm_get_migration(struct kvm *kvm,
struct kvm_device_attr *attr)
{
- u64 mig = (kvm->arch.migration_state != NULL);
+ u64 mig = kvm->arch.migration_mode;
if (attr->attr != KVM_S390_VM_MIGRATION_STATUS)
return -ENXIO;
@@ -1653,6 +1627,134 @@ out:
#define KVM_S390_CMMA_SIZE_MAX ((u32)KVM_S390_SKEYS_MAX)
/*
+ * Similar to gfn_to_memslot, but returns the index of a memslot also when the
+ * address falls in a hole. In that case the index of one of the memslots
+ * bordering the hole is returned.
+ */
+static int gfn_to_memslot_approx(struct kvm_memslots *slots, gfn_t gfn)
+{
+ int start = 0, end = slots->used_slots;
+ int slot = atomic_read(&slots->lru_slot);
+ struct kvm_memory_slot *memslots = slots->memslots;
+
+ if (gfn >= memslots[slot].base_gfn &&
+ gfn < memslots[slot].base_gfn + memslots[slot].npages)
+ return slot;
+
+ while (start < end) {
+ slot = start + (end - start) / 2;
+
+ if (gfn >= memslots[slot].base_gfn)
+ end = slot;
+ else
+ start = slot + 1;
+ }
+
+ if (gfn >= memslots[start].base_gfn &&
+ gfn < memslots[start].base_gfn + memslots[start].npages) {
+ atomic_set(&slots->lru_slot, start);
+ }
+
+ return start;
+}
+
+static int kvm_s390_peek_cmma(struct kvm *kvm, struct kvm_s390_cmma_log *args,
+ u8 *res, unsigned long bufsize)
+{
+ unsigned long pgstev, hva, cur_gfn = args->start_gfn;
+
+ args->count = 0;
+ while (args->count < bufsize) {
+ hva = gfn_to_hva(kvm, cur_gfn);
+ /*
+ * We return an error if the first value was invalid, but we
+ * return successfully if at least one value was copied.
+ */
+ if (kvm_is_error_hva(hva))
+ return args->count ? 0 : -EFAULT;
+ if (get_pgste(kvm->mm, hva, &pgstev) < 0)
+ pgstev = 0;
+ res[args->count++] = (pgstev >> 24) & 0x43;
+ cur_gfn++;
+ }
+
+ return 0;
+}
+
+static unsigned long kvm_s390_next_dirty_cmma(struct kvm_memslots *slots,
+ unsigned long cur_gfn)
+{
+ int slotidx = gfn_to_memslot_approx(slots, cur_gfn);
+ struct kvm_memory_slot *ms = slots->memslots + slotidx;
+ unsigned long ofs = cur_gfn - ms->base_gfn;
+
+ if (ms->base_gfn + ms->npages <= cur_gfn) {
+ slotidx--;
+ /* If we are above the highest slot, wrap around */
+ if (slotidx < 0)
+ slotidx = slots->used_slots - 1;
+
+ ms = slots->memslots + slotidx;
+ ofs = 0;
+ }
+ ofs = find_next_bit(kvm_second_dirty_bitmap(ms), ms->npages, ofs);
+ while ((slotidx > 0) && (ofs >= ms->npages)) {
+ slotidx--;
+ ms = slots->memslots + slotidx;
+ ofs = find_next_bit(kvm_second_dirty_bitmap(ms), ms->npages, 0);
+ }
+ return ms->base_gfn + ofs;
+}
+
+static int kvm_s390_get_cmma(struct kvm *kvm, struct kvm_s390_cmma_log *args,
+ u8 *res, unsigned long bufsize)
+{
+ unsigned long mem_end, cur_gfn, next_gfn, hva, pgstev;
+ struct kvm_memslots *slots = kvm_memslots(kvm);
+ struct kvm_memory_slot *ms;
+
+ cur_gfn = kvm_s390_next_dirty_cmma(slots, args->start_gfn);
+ ms = gfn_to_memslot(kvm, cur_gfn);
+ args->count = 0;
+ args->start_gfn = cur_gfn;
+ if (!ms)
+ return 0;
+ next_gfn = kvm_s390_next_dirty_cmma(slots, cur_gfn + 1);
+ mem_end = slots->memslots[0].base_gfn + slots->memslots[0].npages;
+
+ while (args->count < bufsize) {
+ hva = gfn_to_hva(kvm, cur_gfn);
+ if (kvm_is_error_hva(hva))
+ return 0;
+ /* Decrement only if we actually flipped the bit to 0 */
+ if (test_and_clear_bit(cur_gfn - ms->base_gfn, kvm_second_dirty_bitmap(ms)))
+ atomic64_dec(&kvm->arch.cmma_dirty_pages);
+ if (get_pgste(kvm->mm, hva, &pgstev) < 0)
+ pgstev = 0;
+ /* Save the value */
+ res[args->count++] = (pgstev >> 24) & 0x43;
+ /* If the next bit is too far away, stop. */
+ if (next_gfn > cur_gfn + KVM_S390_MAX_BIT_DISTANCE)
+ return 0;
+ /* If we reached the previous "next", find the next one */
+ if (cur_gfn == next_gfn)
+ next_gfn = kvm_s390_next_dirty_cmma(slots, cur_gfn + 1);
+ /* Reached the end of memory or of the buffer, stop */
+ if ((next_gfn >= mem_end) ||
+ (next_gfn - args->start_gfn >= bufsize))
+ return 0;
+ cur_gfn++;
+ /* Reached the end of the current memslot, take the next one. */
+ if (cur_gfn - ms->base_gfn >= ms->npages) {
+ ms = gfn_to_memslot(kvm, cur_gfn);
+ if (!ms)
+ return 0;
+ }
+ }
+ return 0;
+}
+
+/*
* This function searches for the next page with dirty CMMA attributes, and
* saves the attributes in the buffer up to either the end of the buffer or
* until a block of at least KVM_S390_MAX_BIT_DISTANCE clean bits is found;
@@ -1663,22 +1765,18 @@ out:
static int kvm_s390_get_cmma_bits(struct kvm *kvm,
struct kvm_s390_cmma_log *args)
{
- struct kvm_s390_migration_state *s = kvm->arch.migration_state;
- unsigned long bufsize, hva, pgstev, i, next, cur;
- int srcu_idx, peek, r = 0, rr;
- u8 *res;
-
- cur = args->start_gfn;
- i = next = pgstev = 0;
+ unsigned long bufsize;
+ int srcu_idx, peek, ret;
+ u8 *values;
- if (unlikely(!kvm->arch.use_cmma))
+ if (!kvm->arch.use_cmma)
return -ENXIO;
/* Invalid/unsupported flags were specified */
if (args->flags & ~KVM_S390_CMMA_PEEK)
return -EINVAL;
/* Migration mode query, and we are not doing a migration */
peek = !!(args->flags & KVM_S390_CMMA_PEEK);
- if (!peek && !s)
+ if (!peek && !kvm->arch.migration_mode)
return -EINVAL;
/* CMMA is disabled or was not used, or the buffer has length zero */
bufsize = min(args->count, KVM_S390_CMMA_SIZE_MAX);
@@ -1686,74 +1784,35 @@ static int kvm_s390_get_cmma_bits(struct kvm *kvm,
memset(args, 0, sizeof(*args));
return 0;
}
-
- if (!peek) {
- /* We are not peeking, and there are no dirty pages */
- if (!atomic64_read(&s->dirty_pages)) {
- memset(args, 0, sizeof(*args));
- return 0;
- }
- cur = find_next_bit(s->pgste_bitmap, s->bitmap_size,
- args->start_gfn);
- if (cur >= s->bitmap_size) /* nothing found, loop back */
- cur = find_next_bit(s->pgste_bitmap, s->bitmap_size, 0);
- if (cur >= s->bitmap_size) { /* again! (very unlikely) */
- memset(args, 0, sizeof(*args));
- return 0;
- }
- next = find_next_bit(s->pgste_bitmap, s->bitmap_size, cur + 1);
+ /* We are not peeking, and there are no dirty pages */
+ if (!peek && !atomic64_read(&kvm->arch.cmma_dirty_pages)) {
+ memset(args, 0, sizeof(*args));
+ return 0;
}
- res = vmalloc(bufsize);
- if (!res)
+ values = vmalloc(bufsize);
+ if (!values)
return -ENOMEM;
- args->start_gfn = cur;
-
down_read(&kvm->mm->mmap_sem);
srcu_idx = srcu_read_lock(&kvm->srcu);
- while (i < bufsize) {
- hva = gfn_to_hva(kvm, cur);
- if (kvm_is_error_hva(hva)) {
- r = -EFAULT;
- break;
- }
- /* decrement only if we actually flipped the bit to 0 */
- if (!peek && test_and_clear_bit(cur, s->pgste_bitmap))
- atomic64_dec(&s->dirty_pages);
- r = get_pgste(kvm->mm, hva, &pgstev);
- if (r < 0)
- pgstev = 0;
- /* save the value */
- res[i++] = (pgstev >> 24) & 0x43;
- /*
- * if the next bit is too far away, stop.
- * if we reached the previous "next", find the next one
- */
- if (!peek) {
- if (next > cur + KVM_S390_MAX_BIT_DISTANCE)
- break;
- if (cur == next)
- next = find_next_bit(s->pgste_bitmap,
- s->bitmap_size, cur + 1);
- /* reached the end of the bitmap or of the buffer, stop */
- if ((next >= s->bitmap_size) ||
- (next >= args->start_gfn + bufsize))
- break;
- }
- cur++;
- }
+ if (peek)
+ ret = kvm_s390_peek_cmma(kvm, args, values, bufsize);
+ else
+ ret = kvm_s390_get_cmma(kvm, args, values, bufsize);
srcu_read_unlock(&kvm->srcu, srcu_idx);
up_read(&kvm->mm->mmap_sem);
- args->count = i;
- args->remaining = s ? atomic64_read(&s->dirty_pages) : 0;
- rr = copy_to_user((void __user *)args->values, res, args->count);
- if (rr)
- r = -EFAULT;
+ if (kvm->arch.migration_mode)
+ args->remaining = atomic64_read(&kvm->arch.cmma_dirty_pages);
+ else
+ args->remaining = 0;
- vfree(res);
- return r;
+ if (copy_to_user((void __user *)args->values, values, args->count))
+ ret = -EFAULT;
+
+ vfree(values);
+ return ret;
}
/*
@@ -2192,10 +2251,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
kvm_s390_destroy_adapters(kvm);
kvm_s390_clear_float_irqs(kvm);
kvm_s390_vsie_destroy(kvm);
- if (kvm->arch.migration_state) {
- vfree(kvm->arch.migration_state->pgste_bitmap);
- kfree(kvm->arch.migration_state);
- }
KVM_EVENT(3, "vm 0x%pK destroyed", kvm);
}
@@ -2353,6 +2408,8 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
vcpu->run->kvm_valid_regs |= KVM_SYNC_BPBC;
if (test_kvm_facility(vcpu->kvm, 133))
vcpu->run->kvm_valid_regs |= KVM_SYNC_GSCB;
+ if (test_kvm_facility(vcpu->kvm, 156))
+ vcpu->run->kvm_valid_regs |= KVM_SYNC_ETOKEN;
/* fprs can be synchronized via vrs, even if the guest has no vx. With
* MACHINE_HAS_VX, (load|store)_fpu_regs() will work with vrs format.
*/
@@ -2602,7 +2659,8 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
}
if (test_kvm_facility(vcpu->kvm, 139))
vcpu->arch.sie_block->ecd |= ECD_MEF;
-
+ if (test_kvm_facility(vcpu->kvm, 156))
+ vcpu->arch.sie_block->ecd |= ECD_ETOKENF;
if (vcpu->arch.sie_block->gd) {
vcpu->arch.sie_block->eca |= ECA_AIV;
VCPU_EVENT(vcpu, 3, "AIV gisa format-%u enabled for cpu %03u",
@@ -3520,6 +3578,7 @@ static void sync_regs(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
}
preempt_enable();
}
+ /* SIE will load etoken directly from SDNX and therefore kvm_run */
kvm_run->kvm_dirty_regs = 0;
}
@@ -3559,7 +3618,7 @@ static void store_regs(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
__ctl_clear_bit(2, 4);
vcpu->arch.host_gscb = NULL;
}
-
+ /* SIE will save etoken directly into SDNX and therefore kvm_run */
}
int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index cfc5a62329f6..d68f10441a16 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -205,13 +205,10 @@ static int handle_store_cpu_address(struct kvm_vcpu *vcpu)
int kvm_s390_skey_check_enable(struct kvm_vcpu *vcpu)
{
int rc;
- struct kvm_s390_sie_block *sie_block = vcpu->arch.sie_block;
trace_kvm_s390_skey_related_inst(vcpu);
/* Already enabled? */
- if (vcpu->kvm->arch.use_skf &&
- !(sie_block->ictl & (ICTL_ISKE | ICTL_SSKE | ICTL_RRBE)) &&
- !kvm_s390_test_cpuflags(vcpu, CPUSTAT_KSS))
+ if (vcpu->arch.skey_enabled)
return 0;
rc = s390_enable_skey();
@@ -222,9 +219,10 @@ int kvm_s390_skey_check_enable(struct kvm_vcpu *vcpu)
if (kvm_s390_test_cpuflags(vcpu, CPUSTAT_KSS))
kvm_s390_clear_cpuflags(vcpu, CPUSTAT_KSS);
if (!vcpu->kvm->arch.use_skf)
- sie_block->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE;
+ vcpu->arch.sie_block->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE;
else
- sie_block->ictl &= ~(ICTL_ISKE | ICTL_SSKE | ICTL_RRBE);
+ vcpu->arch.sie_block->ictl &= ~(ICTL_ISKE | ICTL_SSKE | ICTL_RRBE);
+ vcpu->arch.skey_enabled = true;
return 0;
}
@@ -987,7 +985,7 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
if (vcpu->run->s.regs.gprs[reg1] & PFMF_CF) {
- if (clear_user((void __user *)vmaddr, PAGE_SIZE))
+ if (kvm_clear_guest(vcpu->kvm, start, PAGE_SIZE))
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
}
@@ -1024,9 +1022,11 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
return 0;
}
-static inline int do_essa(struct kvm_vcpu *vcpu, const int orc)
+/*
+ * Must be called with relevant read locks held (kvm->mm->mmap_sem, kvm->srcu)
+ */
+static inline int __do_essa(struct kvm_vcpu *vcpu, const int orc)
{
- struct kvm_s390_migration_state *ms = vcpu->kvm->arch.migration_state;
int r1, r2, nappended, entries;
unsigned long gfn, hva, res, pgstev, ptev;
unsigned long *cbrlo;
@@ -1076,10 +1076,12 @@ static inline int do_essa(struct kvm_vcpu *vcpu, const int orc)
cbrlo[entries] = gfn << PAGE_SHIFT;
}
- if (orc && gfn < ms->bitmap_size) {
- /* increment only if we are really flipping the bit to 1 */
- if (!test_and_set_bit(gfn, ms->pgste_bitmap))
- atomic64_inc(&ms->dirty_pages);
+ if (orc) {
+ struct kvm_memory_slot *ms = gfn_to_memslot(vcpu->kvm, gfn);
+
+ /* Increment only if we are really flipping the bit */
+ if (ms && !test_and_set_bit(gfn - ms->base_gfn, kvm_second_dirty_bitmap(ms)))
+ atomic64_inc(&vcpu->kvm->arch.cmma_dirty_pages);
}
return nappended;
@@ -1108,7 +1110,7 @@ static int handle_essa(struct kvm_vcpu *vcpu)
: ESSA_SET_STABLE_IF_RESIDENT))
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
- if (likely(!vcpu->kvm->arch.migration_state)) {
+ if (!vcpu->kvm->arch.migration_mode) {
/*
* CMMA is enabled in the KVM settings, but is disabled in
* the SIE block and in the mm_context, and we are not doing
@@ -1136,10 +1138,16 @@ static int handle_essa(struct kvm_vcpu *vcpu)
/* Retry the ESSA instruction */
kvm_s390_retry_instr(vcpu);
} else {
- /* Account for the possible extra cbrl entry */
- i = do_essa(vcpu, orc);
+ int srcu_idx;
+
+ down_read(&vcpu->kvm->mm->mmap_sem);
+ srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
+ i = __do_essa(vcpu, orc);
+ srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
+ up_read(&vcpu->kvm->mm->mmap_sem);
if (i < 0)
return i;
+ /* Account for the possible extra cbrl entry */
entries += i;
}
vcpu->arch.sie_block->cbrlo &= PAGE_MASK; /* reset nceo */
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 84c89cb9636f..63844b95c22c 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -2,7 +2,7 @@
/*
* kvm nested virtualization support for s390x
*
- * Copyright IBM Corp. 2016
+ * Copyright IBM Corp. 2016, 2018
*
* Author(s): David Hildenbrand <dahi@linux.vnet.ibm.com>
*/
@@ -378,6 +378,10 @@ static int shadow_scb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
if (test_kvm_facility(vcpu->kvm, 139))
scb_s->ecd |= scb_o->ecd & ECD_MEF;
+ /* etoken */
+ if (test_kvm_facility(vcpu->kvm, 156))
+ scb_s->ecd |= scb_o->ecd & ECD_ETOKENF;
+
prepare_ibc(vcpu, vsie_page);
rc = shadow_crycb(vcpu, vsie_page);
out:
@@ -627,7 +631,8 @@ static int pin_blocks(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
vsie_page->riccbd_gpa = gpa;
scb_s->riccbd = hpa;
}
- if ((scb_s->ecb & ECB_GS) && !(scb_s->ecd & ECD_HOSTREGMGMT)) {
+ if (((scb_s->ecb & ECB_GS) && !(scb_s->ecd & ECD_HOSTREGMGMT)) ||
+ (scb_s->ecd & ECD_ETOKENF)) {
unsigned long sdnxc;
gpa = READ_ONCE(scb_o->sdnxo) & ~0xfUL;
@@ -818,6 +823,8 @@ static int handle_stfle(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
* - < 0 if an error occurred
*/
static int do_vsie_run(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
+ __releases(vcpu->kvm->srcu)
+ __acquires(vcpu->kvm->srcu)
{
struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s;
struct kvm_s390_sie_block *scb_o = vsie_page->scb_o;
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 4cc3f06b0ab3..72af23bacbb5 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -341,7 +341,8 @@ static noinline int signal_return(struct pt_regs *regs)
return -EACCES;
}
-static noinline void do_fault_error(struct pt_regs *regs, int access, int fault)
+static noinline void do_fault_error(struct pt_regs *regs, int access,
+ vm_fault_t fault)
{
int si_code;
@@ -401,7 +402,7 @@ static noinline void do_fault_error(struct pt_regs *regs, int access, int fault)
* 11 Page translation -> Not present (nullification)
* 3b Region third trans. -> Not present (nullification)
*/
-static inline int do_exception(struct pt_regs *regs, int access)
+static inline vm_fault_t do_exception(struct pt_regs *regs, int access)
{
struct gmap *gmap;
struct task_struct *tsk;
@@ -411,7 +412,7 @@ static inline int do_exception(struct pt_regs *regs, int access)
unsigned long trans_exc_code;
unsigned long address;
unsigned int flags;
- int fault;
+ vm_fault_t fault;
tsk = current;
/*
@@ -564,7 +565,8 @@ out:
void do_protection_exception(struct pt_regs *regs)
{
unsigned long trans_exc_code;
- int access, fault;
+ int access;
+ vm_fault_t fault;
trans_exc_code = regs->int_parm_long;
/*
@@ -599,7 +601,8 @@ NOKPROBE_SYMBOL(do_protection_exception);
void do_dat_exception(struct pt_regs *regs)
{
- int access, fault;
+ int access;
+ vm_fault_t fault;
access = VM_READ | VM_EXEC | VM_WRITE;
fault = do_exception(regs, access);
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index 8d61218a71aa..ce6a3f75065b 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -28,9 +28,8 @@ KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS))
$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
$(call if_changed,ld)
-CMD_BIN2C = $(objtree)/scripts/basic/bin2c
quiet_cmd_bin2c = BIN2C $@
- cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@
+ cmd_bin2c = $(objtree)/scripts/bin2c kexec_purgatory < $< > $@
$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
$(call if_changed,bin2c)
diff --git a/arch/s390/tools/gen_facilities.c b/arch/s390/tools/gen_facilities.c
index 90a8c9e84ca6..0c85aedcf9b3 100644
--- a/arch/s390/tools/gen_facilities.c
+++ b/arch/s390/tools/gen_facilities.c
@@ -4,7 +4,7 @@
* numbering scheme from the Princples of Operations: most significant bit
* has bit number 0.
*
- * Copyright IBM Corp. 2015
+ * Copyright IBM Corp. 2015, 2018
*
*/
@@ -106,6 +106,7 @@ static struct facility_def facility_defs[] = {
.name = "FACILITIES_KVM_CPUMODEL",
.bits = (int[]){
+ 156, /* etoken facility */
-1 /* END */
}
},
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-20 11:27:45 +0000