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-rw-r--r--arch/s390/include/asm/Kbuild7
-rw-r--r--arch/s390/include/asm/archrandom.h69
-rw-r--r--arch/s390/include/asm/atomic_ops.h22
-rw-r--r--arch/s390/include/asm/bitops.h13
-rw-r--r--arch/s390/include/asm/cio.h18
-rw-r--r--arch/s390/include/asm/cpacf.h56
-rw-r--r--arch/s390/include/asm/cpu_mf.h6
-rw-r--r--arch/s390/include/asm/div64.h1
-rw-r--r--arch/s390/include/asm/elf.h1
-rw-r--r--arch/s390/include/asm/emergency-restart.h6
-rw-r--r--arch/s390/include/asm/facility.h6
-rw-r--r--arch/s390/include/asm/irq_regs.h1
-rw-r--r--arch/s390/include/asm/isc.h1
-rw-r--r--arch/s390/include/asm/kmap_types.h6
-rw-r--r--arch/s390/include/asm/kvm_host.h42
-rw-r--r--arch/s390/include/asm/local.h1
-rw-r--r--arch/s390/include/asm/local64.h1
-rw-r--r--arch/s390/include/asm/lowcore.h9
-rw-r--r--arch/s390/include/asm/mman.h4
-rw-r--r--arch/s390/include/asm/mmu.h2
-rw-r--r--arch/s390/include/asm/mmu_context.h1
-rw-r--r--arch/s390/include/asm/nmi.h12
-rw-r--r--arch/s390/include/asm/page-states.h19
-rw-r--r--arch/s390/include/asm/perf_event.h4
-rw-r--r--arch/s390/include/asm/pgtable.h16
-rw-r--r--arch/s390/include/asm/pkey.h21
-rw-r--r--arch/s390/include/asm/processor.h14
-rw-r--r--arch/s390/include/asm/sclp.h1
-rw-r--r--arch/s390/include/asm/set_memory.h (renamed from arch/s390/include/asm/cacheflush.h)9
-rw-r--r--arch/s390/include/asm/setup.h6
-rw-r--r--arch/s390/include/asm/sparsemem.h2
-rw-r--r--arch/s390/include/asm/spinlock.h45
-rw-r--r--arch/s390/include/asm/spinlock_types.h6
-rw-r--r--arch/s390/include/asm/switch_to.h3
-rw-r--r--arch/s390/include/asm/sysinfo.h12
-rw-r--r--arch/s390/include/asm/thread_info.h26
36 files changed, 343 insertions, 126 deletions
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 8aea32fe8bd2..45092b12f54f 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -1,8 +1,15 @@
generic-y += asm-offsets.h
+generic-y += cacheflush.h
generic-y += clkdev.h
generic-y += dma-contiguous.h
+generic-y += div64.h
+generic-y += emergency-restart.h
generic-y += export.h
+generic-y += irq_regs.h
generic-y += irq_work.h
+generic-y += kmap_types.h
+generic-y += local.h
+generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
generic-y += preempt.h
diff --git a/arch/s390/include/asm/archrandom.h b/arch/s390/include/asm/archrandom.h
new file mode 100644
index 000000000000..6033901a40b2
--- /dev/null
+++ b/arch/s390/include/asm/archrandom.h
@@ -0,0 +1,69 @@
+/*
+ * Kernel interface for the s390 arch_random_* functions
+ *
+ * Copyright IBM Corp. 2017
+ *
+ * Author: Harald Freudenberger <freude@de.ibm.com>
+ *
+ */
+
+#ifndef _ASM_S390_ARCHRANDOM_H
+#define _ASM_S390_ARCHRANDOM_H
+
+#ifdef CONFIG_ARCH_RANDOM
+
+#include <linux/static_key.h>
+#include <linux/atomic.h>
+#include <asm/cpacf.h>
+
+DECLARE_STATIC_KEY_FALSE(s390_arch_random_available);
+extern atomic64_t s390_arch_random_counter;
+
+static void s390_arch_random_generate(u8 *buf, unsigned int nbytes)
+{
+ cpacf_trng(NULL, 0, buf, nbytes);
+ atomic64_add(nbytes, &s390_arch_random_counter);
+}
+
+static inline bool arch_has_random(void)
+{
+ if (static_branch_likely(&s390_arch_random_available))
+ return true;
+ return false;
+}
+
+static inline bool arch_has_random_seed(void)
+{
+ return arch_has_random();
+}
+
+static inline bool arch_get_random_long(unsigned long *v)
+{
+ if (static_branch_likely(&s390_arch_random_available)) {
+ s390_arch_random_generate((u8 *)v, sizeof(*v));
+ return true;
+ }
+ return false;
+}
+
+static inline bool arch_get_random_int(unsigned int *v)
+{
+ if (static_branch_likely(&s390_arch_random_available)) {
+ s390_arch_random_generate((u8 *)v, sizeof(*v));
+ return true;
+ }
+ return false;
+}
+
+static inline bool arch_get_random_seed_long(unsigned long *v)
+{
+ return arch_get_random_long(v);
+}
+
+static inline bool arch_get_random_seed_int(unsigned int *v)
+{
+ return arch_get_random_int(v);
+}
+
+#endif /* CONFIG_ARCH_RANDOM */
+#endif /* _ASM_S390_ARCHRANDOM_H */
diff --git a/arch/s390/include/asm/atomic_ops.h b/arch/s390/include/asm/atomic_ops.h
index ac9e2b939d04..ba6d29412344 100644
--- a/arch/s390/include/asm/atomic_ops.h
+++ b/arch/s390/include/asm/atomic_ops.h
@@ -111,20 +111,22 @@ __ATOMIC64_OPS(__atomic64_xor, "xgr")
static inline int __atomic_cmpxchg(int *ptr, int old, int new)
{
- asm volatile(
- " cs %[old],%[new],%[ptr]"
- : [old] "+d" (old), [ptr] "+Q" (*ptr)
- : [new] "d" (new) : "cc", "memory");
- return old;
+ return __sync_val_compare_and_swap(ptr, old, new);
+}
+
+static inline int __atomic_cmpxchg_bool(int *ptr, int old, int new)
+{
+ return __sync_bool_compare_and_swap(ptr, old, new);
}
static inline long __atomic64_cmpxchg(long *ptr, long old, long new)
{
- asm volatile(
- " csg %[old],%[new],%[ptr]"
- : [old] "+d" (old), [ptr] "+Q" (*ptr)
- : [new] "d" (new) : "cc", "memory");
- return old;
+ return __sync_val_compare_and_swap(ptr, old, new);
+}
+
+static inline long __atomic64_cmpxchg_bool(long *ptr, long old, long new)
+{
+ return __sync_bool_compare_and_swap(ptr, old, new);
}
#endif /* __ARCH_S390_ATOMIC_OPS__ */
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index d92047da5ccb..99902b7b9f0c 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -15,14 +15,6 @@
* end up numbered:
* |63..............0|127............64|191...........128|255...........192|
*
- * There are a few little-endian macros used mostly for filesystem
- * bitmaps, these work on similar bit array layouts, but byte-oriented:
- * |7...0|15...8|23...16|31...24|39...32|47...40|55...48|63...56|
- *
- * The main difference is that bit 3-5 in the bit number field needs to be
- * reversed compared to the big-endian bit fields. This can be achieved by
- * XOR with 0x38.
- *
* We also have special functions which work with an MSB0 encoding.
* The bits are numbered:
* |0..............63|64............127|128...........191|192...........255|
@@ -253,6 +245,11 @@ unsigned long find_first_bit_inv(const unsigned long *addr, unsigned long size);
unsigned long find_next_bit_inv(const unsigned long *addr, unsigned long size,
unsigned long offset);
+#define for_each_set_bit_inv(bit, addr, size) \
+ for ((bit) = find_first_bit_inv((addr), (size)); \
+ (bit) < (size); \
+ (bit) = find_next_bit_inv((addr), (size), (bit) + 1))
+
static inline void set_bit_inv(unsigned long nr, volatile unsigned long *ptr)
{
return set_bit(nr ^ (BITS_PER_LONG - 1), ptr);
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h
index f7ed88cc066e..7a38ca85190b 100644
--- a/arch/s390/include/asm/cio.h
+++ b/arch/s390/include/asm/cio.h
@@ -33,6 +33,24 @@ struct ccw1 {
__u32 cda;
} __attribute__ ((packed,aligned(8)));
+/**
+ * struct ccw0 - channel command word
+ * @cmd_code: command code
+ * @cda: data address
+ * @flags: flags, like IDA addressing, etc.
+ * @reserved: will be ignored
+ * @count: byte count
+ *
+ * The format-0 ccw structure.
+ */
+struct ccw0 {
+ __u8 cmd_code;
+ __u32 cda : 24;
+ __u8 flags;
+ __u8 reserved;
+ __u16 count;
+} __packed __aligned(8);
+
#define CCW_FLAG_DC 0x80
#define CCW_FLAG_CC 0x40
#define CCW_FLAG_SLI 0x20
diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h
index e2dfbf280d12..e06f2556b316 100644
--- a/arch/s390/include/asm/cpacf.h
+++ b/arch/s390/include/asm/cpacf.h
@@ -25,7 +25,8 @@
#define CPACF_KMO 0xb92b /* MSA4 */
#define CPACF_PCC 0xb92c /* MSA4 */
#define CPACF_KMCTR 0xb92d /* MSA4 */
-#define CPACF_PPNO 0xb93c /* MSA5 */
+#define CPACF_PRNO 0xb93c /* MSA5 */
+#define CPACF_KMA 0xb929 /* MSA8 */
/*
* En/decryption modifier bits
@@ -123,12 +124,14 @@
#define CPACF_PCKMO_ENC_AES_256_KEY 0x14
/*
- * Function codes for the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION)
+ * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION)
* instruction
*/
-#define CPACF_PPNO_QUERY 0x00
-#define CPACF_PPNO_SHA512_DRNG_GEN 0x03
-#define CPACF_PPNO_SHA512_DRNG_SEED 0x83
+#define CPACF_PRNO_QUERY 0x00
+#define CPACF_PRNO_SHA512_DRNG_GEN 0x03
+#define CPACF_PRNO_SHA512_DRNG_SEED 0x83
+#define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70
+#define CPACF_PRNO_TRNG 0x72
typedef struct { unsigned char bytes[16]; } cpacf_mask_t;
@@ -149,8 +152,8 @@ static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask)
asm volatile(
" spm 0\n" /* pckmo doesn't change the cc */
- /* Parameter registers are ignored, but may not be 0 */
- "0: .insn rrf,%[opc] << 16,2,2,2,0\n"
+ /* Parameter regs are ignored, but must be nonzero and unique */
+ "0: .insn rrf,%[opc] << 16,2,4,6,0\n"
" brc 1,0b\n" /* handle partial completion */
: "=m" (*mask)
: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode)
@@ -173,7 +176,7 @@ static inline int __cpacf_check_opcode(unsigned int opcode)
case CPACF_PCC:
case CPACF_KMCTR:
return test_facility(77); /* check for MSA4 */
- case CPACF_PPNO:
+ case CPACF_PRNO:
return test_facility(57); /* check for MSA5 */
default:
BUG();
@@ -373,18 +376,18 @@ static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest,
}
/**
- * cpacf_ppno() - executes the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION)
+ * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION)
* instruction
- * @func: the function code passed to PPNO; see CPACF_PPNO_xxx defines
+ * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines
* @param: address of parameter block; see POP for details on each func
* @dest: address of destination memory area
* @dest_len: size of destination memory area in bytes
* @seed: address of seed data
* @seed_len: size of seed data in bytes
*/
-static inline void cpacf_ppno(unsigned long func, void *param,
- u8 *dest, long dest_len,
- const u8 *seed, long seed_len)
+static inline void cpacf_prno(unsigned long func, void *param,
+ u8 *dest, unsigned long dest_len,
+ const u8 *seed, unsigned long seed_len)
{
register unsigned long r0 asm("0") = (unsigned long) func;
register unsigned long r1 asm("1") = (unsigned long) param;
@@ -398,7 +401,32 @@ static inline void cpacf_ppno(unsigned long func, void *param,
" brc 1,0b\n" /* handle partial completion */
: [dst] "+a" (r2), [dlen] "+d" (r3)
: [fc] "d" (r0), [pba] "a" (r1),
- [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PPNO)
+ [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PRNO)
+ : "cc", "memory");
+}
+
+/**
+ * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction
+ * @ucbuf: buffer for unconditioned data
+ * @ucbuf_len: amount of unconditioned data to fetch in bytes
+ * @cbuf: buffer for conditioned data
+ * @cbuf_len: amount of conditioned data to fetch in bytes
+ */
+static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len,
+ u8 *cbuf, unsigned long cbuf_len)
+{
+ register unsigned long r0 asm("0") = (unsigned long) CPACF_PRNO_TRNG;
+ register unsigned long r2 asm("2") = (unsigned long) ucbuf;
+ register unsigned long r3 asm("3") = (unsigned long) ucbuf_len;
+ register unsigned long r4 asm("4") = (unsigned long) cbuf;
+ register unsigned long r5 asm("5") = (unsigned long) cbuf_len;
+
+ asm volatile (
+ "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n"
+ " brc 1,0b\n" /* handle partial completion */
+ : [ucbuf] "+a" (r2), [ucbuflen] "+d" (r3),
+ [cbuf] "+a" (r4), [cbuflen] "+d" (r5)
+ : [fc] "d" (r0), [opc] "i" (CPACF_PRNO)
: "cc", "memory");
}
diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index d1e0707310fd..05480e4cc5ca 100644
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -20,9 +20,11 @@
#define CPU_MF_INT_SF_PRA (1 << 29) /* program request alert */
#define CPU_MF_INT_SF_SACA (1 << 23) /* sampler auth. change alert */
#define CPU_MF_INT_SF_LSDA (1 << 22) /* loss of sample data alert */
+#define CPU_MF_INT_CF_MTDA (1 << 15) /* loss of MT ctr. data alert */
#define CPU_MF_INT_CF_CACA (1 << 7) /* counter auth. change alert */
#define CPU_MF_INT_CF_LCDA (1 << 6) /* loss of counter data alert */
-#define CPU_MF_INT_CF_MASK (CPU_MF_INT_CF_CACA|CPU_MF_INT_CF_LCDA)
+#define CPU_MF_INT_CF_MASK (CPU_MF_INT_CF_MTDA|CPU_MF_INT_CF_CACA| \
+ CPU_MF_INT_CF_LCDA)
#define CPU_MF_INT_SF_MASK (CPU_MF_INT_SF_IAE|CPU_MF_INT_SF_ISE| \
CPU_MF_INT_SF_PRA|CPU_MF_INT_SF_SACA| \
CPU_MF_INT_SF_LSDA)
@@ -172,7 +174,7 @@ static inline int lcctl(u64 ctl)
/* Extract CPU counter */
static inline int __ecctr(u64 ctr, u64 *content)
{
- register u64 _content asm("4") = 0;
+ u64 _content;
int cc;
asm volatile (
diff --git a/arch/s390/include/asm/div64.h b/arch/s390/include/asm/div64.h
deleted file mode 100644
index 6cd978cefb28..000000000000
--- a/arch/s390/include/asm/div64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/div64.h>
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 1d48880b3cc1..e8f623041769 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -105,6 +105,7 @@
#define HWCAP_S390_VXRS 2048
#define HWCAP_S390_VXRS_BCD 4096
#define HWCAP_S390_VXRS_EXT 8192
+#define HWCAP_S390_GS 16384
/* Internal bits, not exposed via elf */
#define HWCAP_INT_SIE 1UL
diff --git a/arch/s390/include/asm/emergency-restart.h b/arch/s390/include/asm/emergency-restart.h
deleted file mode 100644
index 108d8c48e42e..000000000000
--- a/arch/s390/include/asm/emergency-restart.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_EMERGENCY_RESTART_H
-#define _ASM_EMERGENCY_RESTART_H
-
-#include <asm-generic/emergency-restart.h>
-
-#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h
index 09b406db7529..cb60d5c5755d 100644
--- a/arch/s390/include/asm/facility.h
+++ b/arch/s390/include/asm/facility.h
@@ -8,14 +8,11 @@
#define __ASM_FACILITY_H
#include <generated/facilities.h>
-
-#ifndef __ASSEMBLY__
-
#include <linux/string.h>
#include <linux/preempt.h>
#include <asm/lowcore.h>
-#define MAX_FACILITY_BIT (256*8) /* stfle_fac_list has 256 bytes */
+#define MAX_FACILITY_BIT (sizeof(((struct lowcore *)0)->stfle_fac_list) * 8)
static inline int __test_facility(unsigned long nr, void *facilities)
{
@@ -72,5 +69,4 @@ static inline void stfle(u64 *stfle_fac_list, int size)
preempt_enable();
}
-#endif /* __ASSEMBLY__ */
#endif /* __ASM_FACILITY_H */
diff --git a/arch/s390/include/asm/irq_regs.h b/arch/s390/include/asm/irq_regs.h
deleted file mode 100644
index 3dd9c0b70270..000000000000
--- a/arch/s390/include/asm/irq_regs.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/irq_regs.h>
diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h
index 68d7d68300f2..8a0b721a9b8d 100644
--- a/arch/s390/include/asm/isc.h
+++ b/arch/s390/include/asm/isc.h
@@ -16,6 +16,7 @@
#define CONSOLE_ISC 1 /* console I/O subchannel */
#define EADM_SCH_ISC 4 /* EADM subchannels */
#define CHSC_SCH_ISC 7 /* CHSC subchannels */
+#define VFIO_CCW_ISC IO_SCH_ISC /* VFIO-CCW I/O subchannels */
/* Adapter interrupts. */
#define QDIO_AIRQ_ISC IO_SCH_ISC /* I/O subchannel in qdio mode */
#define PCI_ISC 2 /* PCI I/O subchannels */
diff --git a/arch/s390/include/asm/kmap_types.h b/arch/s390/include/asm/kmap_types.h
deleted file mode 100644
index 0a88622339ee..000000000000
--- a/arch/s390/include/asm/kmap_types.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_KMAP_TYPES_H
-#define _ASM_KMAP_TYPES_H
-
-#include <asm-generic/kmap_types.h>
-
-#endif
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index a41faf34b034..426614a882a9 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -25,6 +25,7 @@
#include <asm/cpu.h>
#include <asm/fpu/api.h>
#include <asm/isc.h>
+#include <asm/guarded_storage.h>
#define KVM_S390_BSCA_CPU_SLOTS 64
#define KVM_S390_ESCA_CPU_SLOTS 248
@@ -121,6 +122,7 @@ struct esca_block {
#define CPUSTAT_SLSR 0x00002000
#define CPUSTAT_ZARCH 0x00000800
#define CPUSTAT_MCDS 0x00000100
+#define CPUSTAT_KSS 0x00000200
#define CPUSTAT_SM 0x00000080
#define CPUSTAT_IBS 0x00000040
#define CPUSTAT_GED2 0x00000010
@@ -164,16 +166,27 @@ struct kvm_s390_sie_block {
#define ICTL_RRBE 0x00001000
#define ICTL_TPROT 0x00000200
__u32 ictl; /* 0x0048 */
+#define ECA_CEI 0x80000000
+#define ECA_IB 0x40000000
+#define ECA_SIGPI 0x10000000
+#define ECA_MVPGI 0x01000000
+#define ECA_VX 0x00020000
+#define ECA_PROTEXCI 0x00002000
+#define ECA_SII 0x00000001
__u32 eca; /* 0x004c */
#define ICPT_INST 0x04
#define ICPT_PROGI 0x08
#define ICPT_INSTPROGI 0x0C
+#define ICPT_EXTREQ 0x10
#define ICPT_EXTINT 0x14
+#define ICPT_IOREQ 0x18
+#define ICPT_WAIT 0x1c
#define ICPT_VALIDITY 0x20
#define ICPT_STOP 0x28
#define ICPT_OPEREXC 0x2C
#define ICPT_PARTEXEC 0x38
#define ICPT_IOINST 0x40
+#define ICPT_KSS 0x5c
__u8 icptcode; /* 0x0050 */
__u8 icptstatus; /* 0x0051 */
__u16 ihcpu; /* 0x0052 */
@@ -182,10 +195,19 @@ struct kvm_s390_sie_block {
__u32 ipb; /* 0x0058 */
__u32 scaoh; /* 0x005c */
__u8 reserved60; /* 0x0060 */
+#define ECB_GS 0x40
+#define ECB_TE 0x10
+#define ECB_SRSI 0x04
+#define ECB_HOSTPROTINT 0x02
__u8 ecb; /* 0x0061 */
+#define ECB2_CMMA 0x80
+#define ECB2_IEP 0x20
+#define ECB2_PFMFI 0x08
+#define ECB2_ESCA 0x04
__u8 ecb2; /* 0x0062 */
-#define ECB3_AES 0x04
#define ECB3_DEA 0x08
+#define ECB3_AES 0x04
+#define ECB3_RI 0x01
__u8 ecb3; /* 0x0063 */
__u32 scaol; /* 0x0064 */
__u8 reserved68[4]; /* 0x0068 */
@@ -219,11 +241,14 @@ struct kvm_s390_sie_block {
__u32 crycbd; /* 0x00fc */
__u64 gcr[16]; /* 0x0100 */
__u64 gbea; /* 0x0180 */
- __u8 reserved188[24]; /* 0x0188 */
+ __u8 reserved188[8]; /* 0x0188 */
+ __u64 sdnxo; /* 0x0190 */
+ __u8 reserved198[8]; /* 0x0198 */
__u32 fac; /* 0x01a0 */
__u8 reserved1a4[20]; /* 0x01a4 */
__u64 cbrlo; /* 0x01b8 */
__u8 reserved1c0[8]; /* 0x01c0 */
+#define ECD_HOSTREGMGMT 0x20000000
__u32 ecd; /* 0x01c8 */
__u8 reserved1cc[18]; /* 0x01cc */
__u64 pp; /* 0x01de */
@@ -498,6 +523,12 @@ struct kvm_s390_local_interrupt {
#define FIRQ_CNTR_PFAULT 3
#define FIRQ_MAX_COUNT 4
+/* mask the AIS mode for a given ISC */
+#define AIS_MODE_MASK(isc) (0x80 >> isc)
+
+#define KVM_S390_AIS_MODE_ALL 0
+#define KVM_S390_AIS_MODE_SINGLE 1
+
struct kvm_s390_float_interrupt {
unsigned long pending_irqs;
spinlock_t lock;
@@ -507,6 +538,10 @@ struct kvm_s390_float_interrupt {
struct kvm_s390_ext_info srv_signal;
int next_rr_cpu;
unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
+ struct mutex ais_lock;
+ u8 simm;
+ u8 nimm;
+ int ais_enabled;
};
struct kvm_hw_wp_info_arch {
@@ -554,6 +589,7 @@ struct kvm_vcpu_arch {
/* if vsie is active, currently executed shadow sie control block */
struct kvm_s390_sie_block *vsie_block;
unsigned int host_acrs[NUM_ACRS];
+ struct gs_cb *host_gscb;
struct fpu host_fpregs;
struct kvm_s390_local_interrupt local_int;
struct hrtimer ckc_timer;
@@ -574,6 +610,7 @@ struct kvm_vcpu_arch {
*/
seqcount_t cputm_seqcount;
__u64 cputm_start;
+ bool gs_enabled;
};
struct kvm_vm_stat {
@@ -596,6 +633,7 @@ struct s390_io_adapter {
bool maskable;
bool masked;
bool swap;
+ bool suppressible;
struct rw_semaphore maps_lock;
struct list_head maps;
atomic_t nr_maps;
diff --git a/arch/s390/include/asm/local.h b/arch/s390/include/asm/local.h
deleted file mode 100644
index c11c530f74d0..000000000000
--- a/arch/s390/include/asm/local.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/local.h>
diff --git a/arch/s390/include/asm/local64.h b/arch/s390/include/asm/local64.h
deleted file mode 100644
index 36c93b5cc239..000000000000
--- a/arch/s390/include/asm/local64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/local64.h>
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 61261e0e95c0..8a5b082797f8 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -157,8 +157,8 @@ struct lowcore {
__u64 stfle_fac_list[32]; /* 0x0f00 */
__u8 pad_0x1000[0x11b0-0x1000]; /* 0x1000 */
- /* Pointer to vector register save area */
- __u64 vector_save_area_addr; /* 0x11b0 */
+ /* Pointer to the machine check extended save area */
+ __u64 mcesad; /* 0x11b0 */
/* 64 bit extparam used for pfault/diag 250: defined by architecture */
__u64 ext_params2; /* 0x11B8 */
@@ -182,10 +182,7 @@ struct lowcore {
/* Transaction abort diagnostic block */
__u8 pgm_tdb[256]; /* 0x1800 */
- __u8 pad_0x1900[0x1c00-0x1900]; /* 0x1900 */
-
- /* Software defined save area for vector registers */
- __u8 vector_save_area[1024]; /* 0x1c00 */
+ __u8 pad_0x1900[0x2000-0x1900]; /* 0x1900 */
} __packed;
#define S390_lowcore (*((struct lowcore *) 0))
diff --git a/arch/s390/include/asm/mman.h b/arch/s390/include/asm/mman.h
index b55a59e1d134..b79813d9cf68 100644
--- a/arch/s390/include/asm/mman.h
+++ b/arch/s390/include/asm/mman.h
@@ -8,8 +8,4 @@
#include <uapi/asm/mman.h>
-#ifndef __ASSEMBLY__
-int s390_mmap_check(unsigned long addr, unsigned long len, unsigned long flags);
-#define arch_mmap_check(addr, len, flags) s390_mmap_check(addr, len, flags)
-#endif
#endif /* __S390_MMAN_H__ */
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index bea785d7f853..bd6f30304518 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -22,6 +22,8 @@ typedef struct {
unsigned int has_pgste:1;
/* The mmu context uses storage keys. */
unsigned int use_skey:1;
+ /* The mmu context uses CMMA. */
+ unsigned int use_cmma:1;
} mm_context_t;
#define INIT_MM_CONTEXT(name) \
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index fa2bf69be182..8712e11bead4 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -28,6 +28,7 @@ static inline int init_new_context(struct task_struct *tsk,
mm->context.alloc_pgste = page_table_allocate_pgste;
mm->context.has_pgste = 0;
mm->context.use_skey = 0;
+ mm->context.use_cmma = 0;
#endif
switch (mm->context.asce_limit) {
case 1UL << 42:
diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h
index b75fd910386a..e3e8895f5d3e 100644
--- a/arch/s390/include/asm/nmi.h
+++ b/arch/s390/include/asm/nmi.h
@@ -58,7 +58,9 @@ union mci {
u64 ie : 1; /* 32 indirect storage error */
u64 ar : 1; /* 33 access register validity */
u64 da : 1; /* 34 delayed access exception */
- u64 : 7; /* 35-41 */
+ u64 : 1; /* 35 */
+ u64 gs : 1; /* 36 guarded storage registers */
+ u64 : 5; /* 37-41 */
u64 pr : 1; /* 42 tod programmable register validity */
u64 fc : 1; /* 43 fp control register validity */
u64 ap : 1; /* 44 ancillary report */
@@ -69,6 +71,14 @@ union mci {
};
};
+#define MCESA_ORIGIN_MASK (~0x3ffUL)
+#define MCESA_LC_MASK (0xfUL)
+
+struct mcesa {
+ u8 vector_save_area[1024];
+ u8 guarded_storage_save_area[32];
+};
+
struct pt_regs;
extern void s390_handle_mcck(void);
diff --git a/arch/s390/include/asm/page-states.h b/arch/s390/include/asm/page-states.h
new file mode 100644
index 000000000000..42267a2fe29e
--- /dev/null
+++ b/arch/s390/include/asm/page-states.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright IBM Corp. 2017
+ * Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
+ */
+
+#ifndef PAGE_STATES_H
+#define PAGE_STATES_H
+
+#define ESSA_GET_STATE 0
+#define ESSA_SET_STABLE 1
+#define ESSA_SET_UNUSED 2
+#define ESSA_SET_VOLATILE 3
+#define ESSA_SET_POT_VOLATILE 4
+#define ESSA_SET_STABLE_RESIDENT 5
+#define ESSA_SET_STABLE_IF_RESIDENT 6
+
+#define ESSA_MAX ESSA_SET_STABLE_IF_RESIDENT
+
+#endif
diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h
index c64c0befd3f3..dd32beb9d30c 100644
--- a/arch/s390/include/asm/perf_event.h
+++ b/arch/s390/include/asm/perf_event.h
@@ -1,7 +1,7 @@
/*
* Performance event support - s390 specific definitions.
*
- * Copyright IBM Corp. 2009, 2013
+ * Copyright IBM Corp. 2009, 2017
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
* Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
*/
@@ -47,7 +47,7 @@ struct perf_sf_sde_regs {
};
/* Perf PMU definitions for the counter facility */
-#define PERF_CPUM_CF_MAX_CTR 256
+#define PERF_CPUM_CF_MAX_CTR 0xffffUL /* Max ctr for ECCTR */
/* Perf PMU definitions for the sampling facility */
#define PERF_CPUM_SF_MAX_CTR 2
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index ecec682bb516..e6e3b887bee3 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -372,10 +372,12 @@ static inline int is_module_addr(void *addr)
#define PGSTE_VSIE_BIT 0x0000200000000000UL /* ref'd in a shadow table */
/* Guest Page State used for virtualization */
-#define _PGSTE_GPS_ZERO 0x0000000080000000UL
-#define _PGSTE_GPS_USAGE_MASK 0x0000000003000000UL
-#define _PGSTE_GPS_USAGE_STABLE 0x0000000000000000UL
-#define _PGSTE_GPS_USAGE_UNUSED 0x0000000001000000UL
+#define _PGSTE_GPS_ZERO 0x0000000080000000UL
+#define _PGSTE_GPS_USAGE_MASK 0x0000000003000000UL
+#define _PGSTE_GPS_USAGE_STABLE 0x0000000000000000UL
+#define _PGSTE_GPS_USAGE_UNUSED 0x0000000001000000UL
+#define _PGSTE_GPS_USAGE_POT_VOLATILE 0x0000000002000000UL
+#define _PGSTE_GPS_USAGE_VOLATILE _PGSTE_GPS_USAGE_MASK
/*
* A user page table pointer has the space-switch-event bit, the
@@ -1041,6 +1043,12 @@ int reset_guest_reference_bit(struct mm_struct *mm, unsigned long addr);
int get_guest_storage_key(struct mm_struct *mm, unsigned long addr,
unsigned char *key);
+int set_pgste_bits(struct mm_struct *mm, unsigned long addr,
+ unsigned long bits, unsigned long value);
+int get_pgste(struct mm_struct *mm, unsigned long hva, unsigned long *pgstep);
+int pgste_perform_essa(struct mm_struct *mm, unsigned long hva, int orc,
+ unsigned long *oldpte, unsigned long *oldpgste);
+
/*
* Certain architectures need to do special things when PTEs
* within a page table are directly modified. Thus, the following
diff --git a/arch/s390/include/asm/pkey.h b/arch/s390/include/asm/pkey.h
index b48aef4188f6..4c484590d858 100644
--- a/arch/s390/include/asm/pkey.h
+++ b/arch/s390/include/asm/pkey.h
@@ -87,4 +87,25 @@ int pkey_findcard(const struct pkey_seckey *seckey,
int pkey_skey2pkey(const struct pkey_seckey *seckey,
struct pkey_protkey *protkey);
+/*
+ * Verify the given secure key for being able to be useable with
+ * the pkey module. Check for correct key type and check for having at
+ * least one crypto card being able to handle this key (master key
+ * or old master key verification pattern matches).
+ * Return some info about the key: keysize in bits, keytype (currently
+ * only AES), flag if key is wrapped with an old MKVP.
+ * @param seckey pointer to buffer with the input secure key
+ * @param pcardnr pointer to cardnr, receives the card number on success
+ * @param pdomain pointer to domain, receives the domain number on success
+ * @param pkeysize pointer to keysize, receives the bitsize of the key
+ * @param pattributes pointer to attributes, receives additional info
+ * PKEY_VERIFY_ATTR_AES if the key is an AES key
+ * PKEY_VERIFY_ATTR_OLD_MKVP if key has old mkvp stored in
+ * @return 0 on success, negative errno value on failure. If no card could
+ * be found which is able to handle this key, -ENODEV is returned.
+ */
+int pkey_verifykey(const struct pkey_seckey *seckey,
+ u16 *pcardnr, u16 *pdomain,
+ u16 *pkeysize, u32 *pattributes);
+
#endif /* _KAPI_PKEY_H */
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index e4988710aa86..60d395fdc864 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -91,14 +91,15 @@ extern void execve_tail(void);
* User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
*/
-#define TASK_SIZE_OF(tsk) ((tsk)->mm ? \
- (tsk)->mm->context.asce_limit : TASK_MAX_SIZE)
+#define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_31BIT) ? \
+ (1UL << 31) : (1UL << 53))
#define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \
(1UL << 30) : (1UL << 41))
#define TASK_SIZE TASK_SIZE_OF(current)
-#define TASK_MAX_SIZE (1UL << 53)
+#define TASK_SIZE_MAX (1UL << 53)
-#define STACK_TOP (1UL << (test_thread_flag(TIF_31BIT) ? 31:42))
+#define STACK_TOP (test_thread_flag(TIF_31BIT) ? \
+ (1UL << 31) : (1UL << 42))
#define STACK_TOP_MAX (1UL << 42)
#define HAVE_ARCH_PICK_MMAP_LAYOUT
@@ -135,6 +136,8 @@ struct thread_struct {
struct list_head list;
/* cpu runtime instrumentation */
struct runtime_instr_cb *ri_cb;
+ struct gs_cb *gs_cb; /* Current guarded storage cb */
+ struct gs_cb *gs_bc_cb; /* Broadcast guarded storage cb */
unsigned char trap_tdb[256]; /* Transaction abort diagnose block */
/*
* Warning: 'fpu' is dynamically-sized. It *MUST* be at
@@ -215,6 +218,9 @@ void show_cacheinfo(struct seq_file *m);
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
+/* Free guarded storage control block for current */
+void exit_thread_gs(void);
+
/*
* Return saved PC of a blocked thread.
*/
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index ace3bd315438..6f5167bc1928 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -75,6 +75,7 @@ struct sclp_info {
unsigned char has_pfmfi : 1;
unsigned char has_ibs : 1;
unsigned char has_skey : 1;
+ unsigned char has_kss : 1;
unsigned int ibc;
unsigned int mtid;
unsigned int mtid_cp;
diff --git a/arch/s390/include/asm/cacheflush.h b/arch/s390/include/asm/set_memory.h
index 0499334f9473..46a4db44c47a 100644
--- a/arch/s390/include/asm/cacheflush.h
+++ b/arch/s390/include/asm/set_memory.h
@@ -1,8 +1,5 @@
-#ifndef _S390_CACHEFLUSH_H
-#define _S390_CACHEFLUSH_H
-
-/* Caches aren't brain-dead on the s390. */
-#include <asm-generic/cacheflush.h>
+#ifndef _ASMS390_SET_MEMORY_H
+#define _ASMS390_SET_MEMORY_H
#define SET_MEMORY_RO 1UL
#define SET_MEMORY_RW 2UL
@@ -31,4 +28,4 @@ static inline int set_memory_x(unsigned long addr, int numpages)
return __set_memory(addr, numpages, SET_MEMORY_X);
}
-#endif /* _S390_CACHEFLUSH_H */
+#endif
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 30bdb5a027f3..cd78155b1829 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -29,8 +29,8 @@
#define MACHINE_FLAG_TE _BITUL(11)
#define MACHINE_FLAG_TLB_LC _BITUL(12)
#define MACHINE_FLAG_VX _BITUL(13)
-#define MACHINE_FLAG_CAD _BITUL(14)
-#define MACHINE_FLAG_NX _BITUL(15)
+#define MACHINE_FLAG_NX _BITUL(14)
+#define MACHINE_FLAG_GS _BITUL(15)
#define LPP_MAGIC _BITUL(31)
#define LPP_PFAULT_PID_MASK _AC(0xffffffff, UL)
@@ -68,8 +68,8 @@ extern void detect_memory_memblock(void);
#define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
#define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC)
#define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX)
-#define MACHINE_HAS_CAD (S390_lowcore.machine_flags & MACHINE_FLAG_CAD)
#define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX)
+#define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS)
/*
* Console mode. Override with conmode=
diff --git a/arch/s390/include/asm/sparsemem.h b/arch/s390/include/asm/sparsemem.h
index 487428b6d099..334e279f1bce 100644
--- a/arch/s390/include/asm/sparsemem.h
+++ b/arch/s390/include/asm/sparsemem.h
@@ -2,6 +2,6 @@
#define _ASM_S390_SPARSEMEM_H
#define SECTION_SIZE_BITS 28
-#define MAX_PHYSMEM_BITS 46
+#define MAX_PHYSMEM_BITS CONFIG_MAX_PHYSMEM_BITS
#endif /* _ASM_S390_SPARSEMEM_H */
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index ffc45048ea7d..f7838ecd83c6 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -10,6 +10,7 @@
#define __ASM_SPINLOCK_H
#include <linux/smp.h>
+#include <asm/atomic_ops.h>
#include <asm/barrier.h>
#include <asm/processor.h>
@@ -17,12 +18,6 @@
extern int spin_retry;
-static inline int
-_raw_compare_and_swap(unsigned int *lock, unsigned int old, unsigned int new)
-{
- return __sync_bool_compare_and_swap(lock, old, new);
-}
-
#ifndef CONFIG_SMP
static inline bool arch_vcpu_is_preempted(int cpu) { return false; }
#else
@@ -40,7 +35,7 @@ bool arch_vcpu_is_preempted(int cpu);
* (the type definitions are in asm/spinlock_types.h)
*/
-void arch_lock_relax(unsigned int cpu);
+void arch_lock_relax(int cpu);
void arch_spin_lock_wait(arch_spinlock_t *);
int arch_spin_trylock_retry(arch_spinlock_t *);
@@ -70,7 +65,7 @@ static inline int arch_spin_trylock_once(arch_spinlock_t *lp)
{
barrier();
return likely(arch_spin_value_unlocked(*lp) &&
- _raw_compare_and_swap(&lp->lock, 0, SPINLOCK_LOCKVAL));
+ __atomic_cmpxchg_bool(&lp->lock, 0, SPINLOCK_LOCKVAL));
}
static inline void arch_spin_lock(arch_spinlock_t *lp)
@@ -95,7 +90,7 @@ static inline int arch_spin_trylock(arch_spinlock_t *lp)
static inline void arch_spin_unlock(arch_spinlock_t *lp)
{
- typecheck(unsigned int, lp->lock);
+ typecheck(int, lp->lock);
asm volatile(
"st %1,%0\n"
: "+Q" (lp->lock)
@@ -141,16 +136,16 @@ extern int _raw_write_trylock_retry(arch_rwlock_t *lp);
static inline int arch_read_trylock_once(arch_rwlock_t *rw)
{
- unsigned int old = ACCESS_ONCE(rw->lock);
- return likely((int) old >= 0 &&
- _raw_compare_and_swap(&rw->lock, old, old + 1));
+ int old = ACCESS_ONCE(rw->lock);
+ return likely(old >= 0 &&
+ __atomic_cmpxchg_bool(&rw->lock, old, old + 1));
}
static inline int arch_write_trylock_once(arch_rwlock_t *rw)
{
- unsigned int old = ACCESS_ONCE(rw->lock);
+ int old = ACCESS_ONCE(rw->lock);
return likely(old == 0 &&
- _raw_compare_and_swap(&rw->lock, 0, 0x80000000));
+ __atomic_cmpxchg_bool(&rw->lock, 0, 0x80000000));
}
#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
@@ -161,9 +156,9 @@ static inline int arch_write_trylock_once(arch_rwlock_t *rw)
#define __RAW_LOCK(ptr, op_val, op_string) \
({ \
- unsigned int old_val; \
+ int old_val; \
\
- typecheck(unsigned int *, ptr); \
+ typecheck(int *, ptr); \
asm volatile( \
op_string " %0,%2,%1\n" \
"bcr 14,0\n" \
@@ -175,9 +170,9 @@ static inline int arch_write_trylock_once(arch_rwlock_t *rw)
#define __RAW_UNLOCK(ptr, op_val, op_string) \
({ \
- unsigned int old_val; \
+ int old_val; \
\
- typecheck(unsigned int *, ptr); \
+ typecheck(int *, ptr); \
asm volatile( \
op_string " %0,%2,%1\n" \
: "=d" (old_val), "+Q" (*ptr) \
@@ -187,14 +182,14 @@ static inline int arch_write_trylock_once(arch_rwlock_t *rw)
})
extern void _raw_read_lock_wait(arch_rwlock_t *lp);
-extern void _raw_write_lock_wait(arch_rwlock_t *lp, unsigned int prev);
+extern void _raw_write_lock_wait(arch_rwlock_t *lp, int prev);
static inline void arch_read_lock(arch_rwlock_t *rw)
{
- unsigned int old;
+ int old;
old = __RAW_LOCK(&rw->lock, 1, __RAW_OP_ADD);
- if ((int) old < 0)
+ if (old < 0)
_raw_read_lock_wait(rw);
}
@@ -205,7 +200,7 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
static inline void arch_write_lock(arch_rwlock_t *rw)
{
- unsigned int old;
+ int old;
old = __RAW_LOCK(&rw->lock, 0x80000000, __RAW_OP_OR);
if (old != 0)
@@ -232,11 +227,11 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
static inline void arch_read_unlock(arch_rwlock_t *rw)
{
- unsigned int old;
+ int old;
do {
old = ACCESS_ONCE(rw->lock);
- } while (!_raw_compare_and_swap(&rw->lock, old, old - 1));
+ } while (!__atomic_cmpxchg_bool(&rw->lock, old, old - 1));
}
static inline void arch_write_lock(arch_rwlock_t *rw)
@@ -248,7 +243,7 @@ static inline void arch_write_lock(arch_rwlock_t *rw)
static inline void arch_write_unlock(arch_rwlock_t *rw)
{
- typecheck(unsigned int, rw->lock);
+ typecheck(int, rw->lock);
rw->owner = 0;
asm volatile(
diff --git a/arch/s390/include/asm/spinlock_types.h b/arch/s390/include/asm/spinlock_types.h
index d84b6939237c..fe755eec275f 100644
--- a/arch/s390/include/asm/spinlock_types.h
+++ b/arch/s390/include/asm/spinlock_types.h
@@ -6,14 +6,14 @@
#endif
typedef struct {
- unsigned int lock;
+ int lock;
} __attribute__ ((aligned (4))) arch_spinlock_t;
#define __ARCH_SPIN_LOCK_UNLOCKED { .lock = 0, }
typedef struct {
- unsigned int lock;
- unsigned int owner;
+ int lock;
+ int owner;
} arch_rwlock_t;
#define __ARCH_RW_LOCK_UNLOCKED { 0 }
diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h
index 12d45f0cfdd9..f6c2b5814ab0 100644
--- a/arch/s390/include/asm/switch_to.h
+++ b/arch/s390/include/asm/switch_to.h
@@ -10,6 +10,7 @@
#include <linux/thread_info.h>
#include <asm/fpu/api.h>
#include <asm/ptrace.h>
+#include <asm/guarded_storage.h>
extern struct task_struct *__switch_to(void *, void *);
extern void update_cr_regs(struct task_struct *task);
@@ -33,12 +34,14 @@ static inline void restore_access_regs(unsigned int *acrs)
save_fpu_regs(); \
save_access_regs(&prev->thread.acrs[0]); \
save_ri_cb(prev->thread.ri_cb); \
+ save_gs_cb(prev->thread.gs_cb); \
} \
if (next->mm) { \
update_cr_regs(next); \
set_cpu_flag(CIF_FPU); \
restore_access_regs(&next->thread.acrs[0]); \
restore_ri_cb(next->thread.ri_cb, prev->thread.ri_cb); \
+ restore_gs_cb(next->thread.gs_cb); \
} \
prev = __switch_to(prev,next); \
} while (0)
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index 229326c942c7..73bff45ced55 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -142,7 +142,15 @@ struct sysinfo_3_2_2 {
extern int topology_max_mnest;
-#define TOPOLOGY_CORE_BITS 64
+/*
+ * Returns the maximum nesting level supported by the cpu topology code.
+ * The current maximum level is 4 which is the drawer level.
+ */
+static inline int topology_mnest_limit(void)
+{
+ return min(topology_max_mnest, 4);
+}
+
#define TOPOLOGY_NR_MAG 6
struct topology_core {
@@ -152,7 +160,7 @@ struct topology_core {
unsigned char pp:2;
unsigned char reserved1;
unsigned short origin;
- unsigned long mask[TOPOLOGY_CORE_BITS / BITS_PER_LONG];
+ unsigned long mask;
};
struct topology_container {
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index a5b54a445eb8..0b3ee083a665 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -51,14 +51,14 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
/*
* thread information flags bit numbers
*/
+/* _TIF_WORK bits */
#define TIF_NOTIFY_RESUME 0 /* callback before returning to user */
#define TIF_SIGPENDING 1 /* signal pending */
#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
-#define TIF_SYSCALL_TRACE 3 /* syscall trace active */
-#define TIF_SYSCALL_AUDIT 4 /* syscall auditing active */
-#define TIF_SECCOMP 5 /* secure computing */
-#define TIF_SYSCALL_TRACEPOINT 6 /* syscall tracepoint instrumentation */
-#define TIF_UPROBE 7 /* breakpointed or single-stepping */
+#define TIF_UPROBE 3 /* breakpointed or single-stepping */
+#define TIF_GUARDED_STORAGE 4 /* load guarded storage control block */
+#define TIF_PATCH_PENDING 5 /* pending live patching update */
+
#define TIF_31BIT 16 /* 32bit process */
#define TIF_MEMDIE 17 /* is terminating due to OOM killer */
#define TIF_RESTORE_SIGMASK 18 /* restore signal mask in do_signal() */
@@ -66,15 +66,25 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
#define TIF_BLOCK_STEP 20 /* This task is block stepped */
#define TIF_UPROBE_SINGLESTEP 21 /* This task is uprobe single stepped */
+/* _TIF_TRACE bits */
+#define TIF_SYSCALL_TRACE 24 /* syscall trace active */
+#define TIF_SYSCALL_AUDIT 25 /* syscall auditing active */
+#define TIF_SECCOMP 26 /* secure computing */
+#define TIF_SYSCALL_TRACEPOINT 27 /* syscall tracepoint instrumentation */
+
#define _TIF_NOTIFY_RESUME _BITUL(TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING _BITUL(TIF_SIGPENDING)
#define _TIF_NEED_RESCHED _BITUL(TIF_NEED_RESCHED)
+#define _TIF_UPROBE _BITUL(TIF_UPROBE)
+#define _TIF_GUARDED_STORAGE _BITUL(TIF_GUARDED_STORAGE)
+#define _TIF_PATCH_PENDING _BITUL(TIF_PATCH_PENDING)
+
+#define _TIF_31BIT _BITUL(TIF_31BIT)
+#define _TIF_SINGLE_STEP _BITUL(TIF_SINGLE_STEP)
+
#define _TIF_SYSCALL_TRACE _BITUL(TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_AUDIT _BITUL(TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP _BITUL(TIF_SECCOMP)
#define _TIF_SYSCALL_TRACEPOINT _BITUL(TIF_SYSCALL_TRACEPOINT)
-#define _TIF_UPROBE _BITUL(TIF_UPROBE)
-#define _TIF_31BIT _BITUL(TIF_31BIT)
-#define _TIF_SINGLE_STEP _BITUL(TIF_SINGLE_STEP)
#endif /* _ASM_THREAD_INFO_H */