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-rw-r--r--arch/s390/kernel/compat_wrapper.S20
-rw-r--r--arch/s390/kernel/early.c2
-rw-r--r--arch/s390/kernel/ptrace.c30
-rw-r--r--arch/s390/kernel/setup.c6
-rw-r--r--arch/s390/kernel/signal.c8
-rw-r--r--arch/s390/kernel/syscalls.S2
-rw-r--r--arch/s390/kernel/topology.c45
-rw-r--r--arch/s390/kernel/vmlinux.lds.S2
8 files changed, 89 insertions, 26 deletions
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 5006a1d9f5d..18c51df9fe0 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1627,3 +1627,23 @@ ENTRY(sys_setns_wrapper)
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
jg sys_setns
+
+ENTRY(compat_sys_process_vm_readv_wrapper)
+ lgfr %r2,%r2 # compat_pid_t
+ llgtr %r3,%r3 # struct compat_iovec __user *
+ llgfr %r4,%r4 # unsigned long
+ llgtr %r5,%r5 # struct compat_iovec __user *
+ llgfr %r6,%r6 # unsigned long
+ llgf %r0,164(%r15) # unsigned long
+ stg %r0,160(%r15)
+ jg sys_process_vm_readv
+
+ENTRY(compat_sys_process_vm_writev_wrapper)
+ lgfr %r2,%r2 # compat_pid_t
+ llgtr %r3,%r3 # struct compat_iovec __user *
+ llgfr %r4,%r4 # unsigned long
+ llgtr %r5,%r5 # struct compat_iovec __user *
+ llgfr %r6,%r6 # unsigned long
+ llgf %r0,164(%r15) # unsigned long
+ stg %r0,160(%r15)
+ jg sys_process_vm_writev
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 37394b3413e..c9ffe002519 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -390,6 +390,8 @@ static __init void detect_machine_facilities(void)
S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS;
if (test_facility(40))
S390_lowcore.machine_flags |= MACHINE_FLAG_SPP;
+ if (test_facility(25))
+ S390_lowcore.machine_flags |= MACHINE_FLAG_STCKF;
#endif
}
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 450931a45b6..573bc29551e 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -296,13 +296,6 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))))
/* Invalid psw mask. */
return -EINVAL;
- if (addr == (addr_t) &dummy->regs.psw.addr)
- /*
- * The debugger changed the instruction address,
- * reset system call restart, see signal.c:do_signal
- */
- task_thread_info(child)->system_call = 0;
-
*(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr) = data;
} else if (addr < (addr_t) (&dummy->regs.orig_gpr2)) {
@@ -614,11 +607,6 @@ static int __poke_user_compat(struct task_struct *child,
/* Transfer 31 bit amode bit to psw mask. */
regs->psw.mask = (regs->psw.mask & ~PSW_MASK_BA) |
(__u64)(tmp & PSW32_ADDR_AMODE);
- /*
- * The debugger changed the instruction address,
- * reset system call restart, see signal.c:do_signal
- */
- task_thread_info(child)->system_call = 0;
} else {
/* gpr 0-15 */
*(__u32*)((addr_t) &regs->psw + addr*2 + 4) = tmp;
@@ -905,6 +893,14 @@ static int s390_last_break_get(struct task_struct *target,
return 0;
}
+static int s390_last_break_set(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ const void *kbuf, const void __user *ubuf)
+{
+ return 0;
+}
+
#endif
static int s390_system_call_get(struct task_struct *target,
@@ -951,6 +947,7 @@ static const struct user_regset s390_regsets[] = {
.size = sizeof(long),
.align = sizeof(long),
.get = s390_last_break_get,
+ .set = s390_last_break_set,
},
#endif
[REGSET_SYSTEM_CALL] = {
@@ -1116,6 +1113,14 @@ static int s390_compat_last_break_get(struct task_struct *target,
return 0;
}
+static int s390_compat_last_break_set(struct task_struct *target,
+ const struct user_regset *regset,
+ unsigned int pos, unsigned int count,
+ const void *kbuf, const void __user *ubuf)
+{
+ return 0;
+}
+
static const struct user_regset s390_compat_regsets[] = {
[REGSET_GENERAL] = {
.core_note_type = NT_PRSTATUS,
@@ -1139,6 +1144,7 @@ static const struct user_regset s390_compat_regsets[] = {
.size = sizeof(long),
.align = sizeof(long),
.get = s390_compat_last_break_get,
+ .set = s390_compat_last_break_set,
},
[REGSET_SYSTEM_CALL] = {
.core_note_type = NT_S390_SYSTEM_CALL,
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 8ac6bfa2786..e54c4ff8aba 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -211,6 +211,8 @@ static void __init setup_zfcpdump(unsigned int console_devno)
if (ipl_info.type != IPL_TYPE_FCP_DUMP)
return;
+ if (OLDMEM_BASE)
+ return;
if (console_devno != -1)
sprintf(str, " cio_ignore=all,!0.0.%04x,!0.0.%04x",
ipl_info.data.fcp.dev_id.devno, console_devno);
@@ -482,7 +484,7 @@ static void __init setup_memory_end(void)
#ifdef CONFIG_ZFCPDUMP
- if (ipl_info.type == IPL_TYPE_FCP_DUMP) {
+ if (ipl_info.type == IPL_TYPE_FCP_DUMP && !OLDMEM_BASE) {
memory_end = ZFCPDUMP_HSA_SIZE;
memory_end_set = 1;
}
@@ -577,7 +579,7 @@ static unsigned long __init find_crash_base(unsigned long crash_size,
*msg = "first memory chunk must be at least crashkernel size";
return 0;
}
- if (is_kdump_kernel() && (crash_size == OLDMEM_SIZE))
+ if (OLDMEM_BASE && crash_size == OLDMEM_SIZE)
return OLDMEM_BASE;
for (i = MEMORY_CHUNKS - 1; i >= 0; i--) {
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 05a85bc14c9..7f6f9f35454 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -460,9 +460,9 @@ void do_signal(struct pt_regs *regs)
regs->svc_code >> 16);
break;
}
- /* No longer in a system call */
- clear_thread_flag(TIF_SYSCALL);
}
+ /* No longer in a system call */
+ clear_thread_flag(TIF_SYSCALL);
if ((is_compat_task() ?
handle_signal32(signr, &ka, &info, oldset, regs) :
@@ -486,6 +486,7 @@ void do_signal(struct pt_regs *regs)
}
/* No handlers present - check for system call restart */
+ clear_thread_flag(TIF_SYSCALL);
if (current_thread_info()->system_call) {
regs->svc_code = current_thread_info()->system_call;
switch (regs->gprs[2]) {
@@ -500,9 +501,6 @@ void do_signal(struct pt_regs *regs)
regs->gprs[2] = regs->orig_gpr2;
set_thread_flag(TIF_SYSCALL);
break;
- default:
- clear_thread_flag(TIF_SYSCALL);
- break;
}
}
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 73eb08c874f..bcab2f04ba5 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -348,3 +348,5 @@ SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at
SYSCALL(sys_clock_adjtime,sys_clock_adjtime,compat_sys_clock_adjtime_wrapper)
SYSCALL(sys_syncfs,sys_syncfs,sys_syncfs_wrapper)
SYSCALL(sys_setns,sys_setns,sys_setns_wrapper)
+SYSCALL(sys_process_vm_readv,sys_process_vm_readv,compat_sys_process_vm_readv_wrapper) /* 340 */
+SYSCALL(sys_process_vm_writev,sys_process_vm_writev,compat_sys_process_vm_writev_wrapper)
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 77b8942b9a1..fdb5b8cb260 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -68,8 +68,10 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
return mask;
}
-static void add_cpus_to_mask(struct topology_cpu *tl_cpu,
- struct mask_info *book, struct mask_info *core)
+static struct mask_info *add_cpus_to_mask(struct topology_cpu *tl_cpu,
+ struct mask_info *book,
+ struct mask_info *core,
+ int z10)
{
unsigned int cpu;
@@ -88,10 +90,16 @@ static void add_cpus_to_mask(struct topology_cpu *tl_cpu,
cpu_book_id[lcpu] = book->id;
#endif
cpumask_set_cpu(lcpu, &core->mask);
- cpu_core_id[lcpu] = core->id;
+ if (z10) {
+ cpu_core_id[lcpu] = rcpu;
+ core = core->next;
+ } else {
+ cpu_core_id[lcpu] = core->id;
+ }
smp_cpu_polarization[lcpu] = tl_cpu->pp;
}
}
+ return core;
}
static void clear_masks(void)
@@ -123,18 +131,41 @@ static void tl_to_cores(struct sysinfo_15_1_x *info)
{
#ifdef CONFIG_SCHED_BOOK
struct mask_info *book = &book_info;
+ struct cpuid cpu_id;
#else
struct mask_info *book = NULL;
#endif
struct mask_info *core = &core_info;
union topology_entry *tle, *end;
+ int z10 = 0;
-
+#ifdef CONFIG_SCHED_BOOK
+ get_cpu_id(&cpu_id);
+ z10 = cpu_id.machine == 0x2097 || cpu_id.machine == 0x2098;
+#endif
spin_lock_irq(&topology_lock);
clear_masks();
tle = info->tle;
end = (union topology_entry *)((unsigned long)info + info->length);
while (tle < end) {
+#ifdef CONFIG_SCHED_BOOK
+ if (z10) {
+ switch (tle->nl) {
+ case 1:
+ book = book->next;
+ book->id = tle->container.id;
+ break;
+ case 0:
+ core = add_cpus_to_mask(&tle->cpu, book, core, z10);
+ break;
+ default:
+ clear_masks();
+ goto out;
+ }
+ tle = next_tle(tle);
+ continue;
+ }
+#endif
switch (tle->nl) {
#ifdef CONFIG_SCHED_BOOK
case 2:
@@ -147,7 +178,7 @@ static void tl_to_cores(struct sysinfo_15_1_x *info)
core->id = tle->container.id;
break;
case 0:
- add_cpus_to_mask(&tle->cpu, book, core);
+ add_cpus_to_mask(&tle->cpu, book, core, z10);
break;
default:
clear_masks();
@@ -328,8 +359,8 @@ void __init s390_init_cpu_topology(void)
for (i = 0; i < TOPOLOGY_NR_MAG; i++)
printk(" %d", info->mag[i]);
printk(" / %d\n", info->mnest);
- alloc_masks(info, &core_info, 2);
+ alloc_masks(info, &core_info, 1);
#ifdef CONFIG_SCHED_BOOK
- alloc_masks(info, &book_info, 3);
+ alloc_masks(info, &book_info, 2);
#endif
}
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 56fe6bc81fe..e4c79ebb40e 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -43,6 +43,8 @@ SECTIONS
NOTES :text :note
+ .dummy : { *(.dummy) } :data
+
RODATA
#ifdef CONFIG_SHARED_KERNEL
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-19 00:12:18 +0000