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-rw-r--r--arch/s390/include/asm/barrier.h24
-rw-r--r--arch/s390/include/asm/eadm.h2
-rw-r--r--arch/s390/include/asm/facility.h18
-rw-r--r--arch/s390/include/asm/lowcore.h9
-rw-r--r--arch/s390/include/asm/nospec-branch.h18
-rw-r--r--arch/s390/include/asm/processor.h4
-rw-r--r--arch/s390/include/asm/runtime_instr.h67
-rw-r--r--arch/s390/include/asm/sysinfo.h3
-rw-r--r--arch/s390/include/asm/thread_info.h4
9 files changed, 79 insertions, 70 deletions
diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
index 10432607a573..f9eddbca79d2 100644
--- a/arch/s390/include/asm/barrier.h
+++ b/arch/s390/include/asm/barrier.h
@@ -49,6 +49,30 @@ do { \
#define __smp_mb__before_atomic() barrier()
#define __smp_mb__after_atomic() barrier()
+/**
+ * array_index_mask_nospec - generate a mask for array_idx() that is
+ * ~0UL when the bounds check succeeds and 0 otherwise
+ * @index: array element index
+ * @size: number of elements in array
+ */
+#define array_index_mask_nospec array_index_mask_nospec
+static inline unsigned long array_index_mask_nospec(unsigned long index,
+ unsigned long size)
+{
+ unsigned long mask;
+
+ if (__builtin_constant_p(size) && size > 0) {
+ asm(" clgr %2,%1\n"
+ " slbgr %0,%0\n"
+ :"=d" (mask) : "d" (size-1), "d" (index) :"cc");
+ return mask;
+ }
+ asm(" clgr %1,%2\n"
+ " slbgr %0,%0\n"
+ :"=d" (mask) : "d" (size), "d" (index) :"cc");
+ return ~mask;
+}
+
#include <asm-generic/barrier.h>
#endif /* __ASM_BARRIER_H */
diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h
index eb5323161f11..bb63b2afdf6f 100644
--- a/arch/s390/include/asm/eadm.h
+++ b/arch/s390/include/asm/eadm.h
@@ -4,7 +4,7 @@
#include <linux/types.h>
#include <linux/device.h>
-#include <linux/blkdev.h>
+#include <linux/blk_types.h>
struct arqb {
u64 data;
diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h
index fbe0c4be3cd8..99c8ce30b3cd 100644
--- a/arch/s390/include/asm/facility.h
+++ b/arch/s390/include/asm/facility.h
@@ -15,6 +15,24 @@
#define MAX_FACILITY_BIT (sizeof(((struct lowcore *)0)->stfle_fac_list) * 8)
+static inline void __set_facility(unsigned long nr, void *facilities)
+{
+ unsigned char *ptr = (unsigned char *) facilities;
+
+ if (nr >= MAX_FACILITY_BIT)
+ return;
+ ptr[nr >> 3] |= 0x80 >> (nr & 7);
+}
+
+static inline void __clear_facility(unsigned long nr, void *facilities)
+{
+ unsigned char *ptr = (unsigned char *) facilities;
+
+ if (nr >= MAX_FACILITY_BIT)
+ return;
+ ptr[nr >> 3] &= ~(0x80 >> (nr & 7));
+}
+
static inline int __test_facility(unsigned long nr, void *facilities)
{
unsigned char *ptr;
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index ec6592e8ba36..5bc888841eaf 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -136,7 +136,11 @@ struct lowcore {
__u64 vdso_per_cpu_data; /* 0x03b8 */
__u64 machine_flags; /* 0x03c0 */
__u64 gmap; /* 0x03c8 */
- __u8 pad_0x03d0[0x0e00-0x03d0]; /* 0x03d0 */
+ __u8 pad_0x03d0[0x0400-0x03d0]; /* 0x03d0 */
+
+ /* br %r1 trampoline */
+ __u16 br_r1_trampoline; /* 0x0400 */
+ __u8 pad_0x0402[0x0e00-0x0402]; /* 0x0402 */
/*
* 0xe00 contains the address of the IPL Parameter Information
@@ -151,7 +155,8 @@ struct lowcore {
__u8 pad_0x0e20[0x0f00-0x0e20]; /* 0x0e20 */
/* Extended facility list */
- __u64 stfle_fac_list[32]; /* 0x0f00 */
+ __u64 stfle_fac_list[16]; /* 0x0f00 */
+ __u64 alt_stfle_fac_list[16]; /* 0x0f80 */
__u8 pad_0x1000[0x11b0-0x1000]; /* 0x1000 */
/* Pointer to the machine check extended save area */
diff --git a/arch/s390/include/asm/nospec-branch.h b/arch/s390/include/asm/nospec-branch.h
new file mode 100644
index 000000000000..7df48e5cf36f
--- /dev/null
+++ b/arch/s390/include/asm/nospec-branch.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_S390_EXPOLINE_H
+#define _ASM_S390_EXPOLINE_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+
+extern int nospec_call_disable;
+extern int nospec_return_disable;
+
+void nospec_init_branches(void);
+void nospec_call_revert(s32 *start, s32 *end);
+void nospec_return_revert(s32 *start, s32 *end);
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_S390_EXPOLINE_H */
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index bfbfad482289..7f2953c15c37 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -91,6 +91,7 @@ void cpu_detect_mhz_feature(void);
extern const struct seq_operations cpuinfo_op;
extern int sysctl_ieee_emulation_warnings;
extern void execve_tail(void);
+extern void __bpon(void);
/*
* User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
@@ -377,6 +378,9 @@ extern void memcpy_absolute(void *, void *, size_t);
memcpy_absolute(&(dest), &__tmp, sizeof(__tmp)); \
} while (0)
+extern int s390_isolate_bp(void);
+extern int s390_isolate_bp_guest(void);
+
#endif /* __ASSEMBLY__ */
#endif /* __ASM_S390_PROCESSOR_H */
diff --git a/arch/s390/include/asm/runtime_instr.h b/arch/s390/include/asm/runtime_instr.h
index 6b1540337ed6..0e1605538cd4 100644
--- a/arch/s390/include/asm/runtime_instr.h
+++ b/arch/s390/include/asm/runtime_instr.h
@@ -2,75 +2,10 @@
#ifndef _RUNTIME_INSTR_H
#define _RUNTIME_INSTR_H
-#define S390_RUNTIME_INSTR_START 0x1
-#define S390_RUNTIME_INSTR_STOP 0x2
-
-struct runtime_instr_cb {
- __u64 rca;
- __u64 roa;
- __u64 rla;
-
- __u32 v : 1;
- __u32 s : 1;
- __u32 k : 1;
- __u32 h : 1;
- __u32 a : 1;
- __u32 reserved1 : 3;
- __u32 ps : 1;
- __u32 qs : 1;
- __u32 pc : 1;
- __u32 qc : 1;
- __u32 reserved2 : 1;
- __u32 g : 1;
- __u32 u : 1;
- __u32 l : 1;
- __u32 key : 4;
- __u32 reserved3 : 8;
- __u32 t : 1;
- __u32 rgs : 3;
-
- __u32 m : 4;
- __u32 n : 1;
- __u32 mae : 1;
- __u32 reserved4 : 2;
- __u32 c : 1;
- __u32 r : 1;
- __u32 b : 1;
- __u32 j : 1;
- __u32 e : 1;
- __u32 x : 1;
- __u32 reserved5 : 2;
- __u32 bpxn : 1;
- __u32 bpxt : 1;
- __u32 bpti : 1;
- __u32 bpni : 1;
- __u32 reserved6 : 2;
-
- __u32 d : 1;
- __u32 f : 1;
- __u32 ic : 4;
- __u32 dc : 4;
-
- __u64 reserved7;
- __u64 sf;
- __u64 rsic;
- __u64 reserved8;
-} __packed __aligned(8);
+#include <uapi/asm/runtime_instr.h>
extern struct runtime_instr_cb runtime_instr_empty_cb;
-static inline void load_runtime_instr_cb(struct runtime_instr_cb *cb)
-{
- asm volatile(".insn rsy,0xeb0000000060,0,0,%0" /* LRIC */
- : : "Q" (*cb));
-}
-
-static inline void store_runtime_instr_cb(struct runtime_instr_cb *cb)
-{
- asm volatile(".insn rsy,0xeb0000000061,0,0,%0" /* STRIC */
- : "=Q" (*cb) : : "cc");
-}
-
static inline void save_ri_cb(struct runtime_instr_cb *cb_prev)
{
if (cb_prev)
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index 25057c118d56..fe7b3f8f0791 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -21,7 +21,8 @@ struct sysinfo_1_1_1 {
unsigned char :8;
unsigned char ccr;
unsigned char cai;
- char reserved_0[28];
+ char reserved_0[20];
+ unsigned long lic;
char manufacturer[16];
char type[4];
char reserved_1[12];
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 25d6ec3aaddd..83ba57533ce6 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -58,6 +58,8 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
#define TIF_GUARDED_STORAGE 4 /* load guarded storage control block */
#define TIF_PATCH_PENDING 5 /* pending live patching update */
#define TIF_PGSTE 6 /* New mm's will use 4K page tables */
+#define TIF_ISOLATE_BP 8 /* Run process with isolated BP */
+#define TIF_ISOLATE_BP_GUEST 9 /* Run KVM guests with isolated BP */
#define TIF_31BIT 16 /* 32bit process */
#define TIF_MEMDIE 17 /* is terminating due to OOM killer */
@@ -78,6 +80,8 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
#define _TIF_UPROBE _BITUL(TIF_UPROBE)
#define _TIF_GUARDED_STORAGE _BITUL(TIF_GUARDED_STORAGE)
#define _TIF_PATCH_PENDING _BITUL(TIF_PATCH_PENDING)
+#define _TIF_ISOLATE_BP _BITUL(TIF_ISOLATE_BP)
+#define _TIF_ISOLATE_BP_GUEST _BITUL(TIF_ISOLATE_BP_GUEST)
#define _TIF_31BIT _BITUL(TIF_31BIT)
#define _TIF_SINGLE_STEP _BITUL(TIF_SINGLE_STEP)
generated by cgit (git 2.34.1) at 2024-06-28 17:19:47 +0000