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-rw-r--r--arch/s390/Kconfig6
-rw-r--r--arch/s390/boot/Makefile4
-rw-r--r--arch/s390/include/asm/ap.h100
-rw-r--r--arch/s390/include/asm/nmi.h5
-rw-r--r--arch/s390/include/asm/rwonce.h31
-rw-r--r--arch/s390/kernel/early.c17
-rw-r--r--arch/s390/kernel/entry.S10
-rw-r--r--arch/s390/kernel/kprobes.c4
-rw-r--r--arch/s390/kernel/nmi.c26
-rw-r--r--arch/s390/kernel/perf_cpum_sf.c9
-rw-r--r--arch/s390/kernel/smp.c3
-rw-r--r--arch/s390/mm/extmem.c12
-rw-r--r--drivers/s390/crypto/ap_queue.c2
-rw-r--r--drivers/s390/crypto/vfio_ap_ops.c4
14 files changed, 131 insertions, 102 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 078cd1a773a3..9809c74e1240 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -125,8 +125,8 @@ config S390
select ARCH_WANTS_DYNAMIC_TASK_STRUCT
select ARCH_WANTS_NO_INSTR
select ARCH_WANT_DEFAULT_BPF_JIT
- select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP
+ select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_TABLE_SORT
select CLONE_BACKWARDS2
select DMA_OPS if PCI
@@ -187,7 +187,6 @@ config S390
select HAVE_KPROBES
select HAVE_KPROBES_ON_FTRACE
select HAVE_KRETPROBES
- select HAVE_RETHOOK
select HAVE_KVM
select HAVE_LIVEPATCH
select HAVE_MEMBLOCK_PHYS_MAP
@@ -200,6 +199,7 @@ config S390
select HAVE_PERF_USER_STACK_DUMP
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RELIABLE_STACKTRACE
+ select HAVE_RETHOOK
select HAVE_RSEQ
select HAVE_SAMPLE_FTRACE_DIRECT
select HAVE_SAMPLE_FTRACE_DIRECT_MULTI
@@ -210,9 +210,9 @@ config S390
select HAVE_VIRT_CPU_ACCOUNTING_IDLE
select IOMMU_HELPER if PCI
select IOMMU_SUPPORT if PCI
+ select MMU_GATHER_MERGE_VMAS
select MMU_GATHER_NO_GATHER
select MMU_GATHER_RCU_TABLE_FREE
- select MMU_GATHER_MERGE_VMAS
select MODULES_USE_ELF_RELA
select NEED_DMA_MAP_STATE if PCI
select NEED_PER_CPU_EMBED_FIRST_CHUNK
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 47a397da0498..cebd4ca16916 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -52,6 +52,8 @@ targets += vmlinux.bin.zst info.bin syms.bin vmlinux.syms $(obj-all)
OBJECTS := $(addprefix $(obj)/,$(obj-y))
OBJECTS_ALL := $(addprefix $(obj)/,$(obj-all))
+clean-files += vmlinux.map
+
quiet_cmd_section_cmp = SECTCMP $*
define cmd_section_cmp
s1=`$(OBJDUMP) -t -j "$*" "$<" | sort | \
@@ -71,7 +73,7 @@ $(obj)/bzImage: $(obj)/vmlinux $(obj)/section_cmp.boot.data $(obj)/section_cmp.b
$(obj)/section_cmp%: vmlinux $(obj)/vmlinux FORCE
$(call if_changed,section_cmp)
-LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup --build-id=sha1 -T
+LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup $(if $(CONFIG_VMLINUX_MAP),-Map=$(obj)/vmlinux.map) --build-id=sha1 -T
$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS_ALL) FORCE
$(call if_changed,ld)
diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h
index 57a2d6518d27..c699f251a464 100644
--- a/arch/s390/include/asm/ap.h
+++ b/arch/s390/include/asm/ap.h
@@ -49,6 +49,19 @@ struct ap_queue_status {
unsigned int _pad2 : 16;
};
+/*
+ * AP queue status reg union to access the reg1
+ * register with the lower 32 bits comprising the
+ * ap queue status.
+ */
+union ap_queue_status_reg {
+ unsigned long value;
+ struct {
+ u32 _pad;
+ struct ap_queue_status status;
+ };
+};
+
/**
* ap_intructions_available() - Test if AP instructions are available.
*
@@ -82,7 +95,7 @@ static inline bool ap_instructions_available(void)
*/
static inline struct ap_queue_status ap_tapq(ap_qid_t qid, unsigned long *info)
{
- struct ap_queue_status reg1;
+ union ap_queue_status_reg reg1;
unsigned long reg2;
asm volatile(
@@ -91,12 +104,12 @@ static inline struct ap_queue_status ap_tapq(ap_qid_t qid, unsigned long *info)
" .insn rre,0xb2af0000,0,0\n" /* PQAP(TAPQ) */
" lgr %[reg1],1\n" /* gr1 (status) into reg1 */
" lgr %[reg2],2\n" /* gr2 into reg2 */
- : [reg1] "=&d" (reg1), [reg2] "=&d" (reg2)
+ : [reg1] "=&d" (reg1.value), [reg2] "=&d" (reg2)
: [qid] "d" (qid)
: "cc", "0", "1", "2");
if (info)
*info = reg2;
- return reg1;
+ return reg1.status;
}
/**
@@ -125,16 +138,16 @@ static inline struct ap_queue_status ap_test_queue(ap_qid_t qid,
static inline struct ap_queue_status ap_rapq(ap_qid_t qid)
{
unsigned long reg0 = qid | (1UL << 24); /* fc 1UL is RAPQ */
- struct ap_queue_status reg1;
+ union ap_queue_status_reg reg1;
asm volatile(
" lgr 0,%[reg0]\n" /* qid arg into gr0 */
" .insn rre,0xb2af0000,0,0\n" /* PQAP(RAPQ) */
" lgr %[reg1],1\n" /* gr1 (status) into reg1 */
- : [reg1] "=&d" (reg1)
+ : [reg1] "=&d" (reg1.value)
: [reg0] "d" (reg0)
: "cc", "0", "1");
- return reg1;
+ return reg1.status;
}
/**
@@ -146,16 +159,16 @@ static inline struct ap_queue_status ap_rapq(ap_qid_t qid)
static inline struct ap_queue_status ap_zapq(ap_qid_t qid)
{
unsigned long reg0 = qid | (2UL << 24); /* fc 2UL is ZAPQ */
- struct ap_queue_status reg1;
+ union ap_queue_status_reg reg1;
asm volatile(
" lgr 0,%[reg0]\n" /* qid arg into gr0 */
" .insn rre,0xb2af0000,0,0\n" /* PQAP(ZAPQ) */
" lgr %[reg1],1\n" /* gr1 (status) into reg1 */
- : [reg1] "=&d" (reg1)
+ : [reg1] "=&d" (reg1.value)
: [reg0] "d" (reg0)
: "cc", "0", "1");
- return reg1;
+ return reg1.status;
}
/**
@@ -209,18 +222,21 @@ static inline int ap_qci(struct ap_config_info *config)
* parameter to the PQAP(AQIC) instruction. For details please
* see the AR documentation.
*/
-struct ap_qirq_ctrl {
- unsigned int _res1 : 8;
- unsigned int zone : 8; /* zone info */
- unsigned int ir : 1; /* ir flag: enable (1) or disable (0) irq */
- unsigned int _res2 : 4;
- unsigned int gisc : 3; /* guest isc field */
- unsigned int _res3 : 6;
- unsigned int gf : 2; /* gisa format */
- unsigned int _res4 : 1;
- unsigned int gisa : 27; /* gisa origin */
- unsigned int _res5 : 1;
- unsigned int isc : 3; /* irq sub class */
+union ap_qirq_ctrl {
+ unsigned long value;
+ struct {
+ unsigned int : 8;
+ unsigned int zone : 8; /* zone info */
+ unsigned int ir : 1; /* ir flag: enable (1) or disable (0) irq */
+ unsigned int : 4;
+ unsigned int gisc : 3; /* guest isc field */
+ unsigned int : 6;
+ unsigned int gf : 2; /* gisa format */
+ unsigned int : 1;
+ unsigned int gisa : 27; /* gisa origin */
+ unsigned int : 1;
+ unsigned int isc : 3; /* irq sub class */
+ };
};
/**
@@ -232,21 +248,14 @@ struct ap_qirq_ctrl {
* Returns AP queue status.
*/
static inline struct ap_queue_status ap_aqic(ap_qid_t qid,
- struct ap_qirq_ctrl qirqctrl,
+ union ap_qirq_ctrl qirqctrl,
phys_addr_t pa_ind)
{
unsigned long reg0 = qid | (3UL << 24); /* fc 3UL is AQIC */
- union {
- unsigned long value;
- struct ap_qirq_ctrl qirqctrl;
- struct {
- u32 _pad;
- struct ap_queue_status status;
- };
- } reg1;
+ union ap_queue_status_reg reg1;
unsigned long reg2 = pa_ind;
- reg1.qirqctrl = qirqctrl;
+ reg1.value = qirqctrl.value;
asm volatile(
" lgr 0,%[reg0]\n" /* qid param into gr0 */
@@ -254,7 +263,7 @@ static inline struct ap_queue_status ap_aqic(ap_qid_t qid,
" lgr 2,%[reg2]\n" /* ni addr into gr2 */
" .insn rre,0xb2af0000,0,0\n" /* PQAP(AQIC) */
" lgr %[reg1],1\n" /* gr1 (status) into reg1 */
- : [reg1] "+&d" (reg1)
+ : [reg1] "+&d" (reg1.value)
: [reg0] "d" (reg0), [reg2] "d" (reg2)
: "cc", "memory", "0", "1", "2");
@@ -291,13 +300,7 @@ static inline struct ap_queue_status ap_qact(ap_qid_t qid, int ifbit,
union ap_qact_ap_info *apinfo)
{
unsigned long reg0 = qid | (5UL << 24) | ((ifbit & 0x01) << 22);
- union {
- unsigned long value;
- struct {
- u32 _pad;
- struct ap_queue_status status;
- };
- } reg1;
+ union ap_queue_status_reg reg1;
unsigned long reg2;
reg1.value = apinfo->val;
@@ -308,7 +311,7 @@ static inline struct ap_queue_status ap_qact(ap_qid_t qid, int ifbit,
" .insn rre,0xb2af0000,0,0\n" /* PQAP(QACT) */
" lgr %[reg1],1\n" /* gr1 (status) into reg1 */
" lgr %[reg2],2\n" /* qact out info into reg2 */
- : [reg1] "+&d" (reg1), [reg2] "=&d" (reg2)
+ : [reg1] "+&d" (reg1.value), [reg2] "=&d" (reg2)
: [reg0] "d" (reg0)
: "cc", "0", "1", "2");
apinfo->val = reg2;
@@ -333,7 +336,7 @@ static inline struct ap_queue_status ap_nqap(ap_qid_t qid,
{
unsigned long reg0 = qid | 0x40000000UL; /* 0x4... is last msg part */
union register_pair nqap_r1, nqap_r2;
- struct ap_queue_status reg1;
+ union ap_queue_status_reg reg1;
nqap_r1.even = (unsigned int)(psmid >> 32);
nqap_r1.odd = psmid & 0xffffffff;
@@ -345,11 +348,11 @@ static inline struct ap_queue_status ap_nqap(ap_qid_t qid,
"0: .insn rre,0xb2ad0000,%[nqap_r1],%[nqap_r2]\n"
" brc 2,0b\n" /* handle partial completion */
" lgr %[reg1],1\n" /* gr1 (status) into reg1 */
- : [reg0] "+&d" (reg0), [reg1] "=&d" (reg1),
+ : [reg0] "+&d" (reg0), [reg1] "=&d" (reg1.value),
[nqap_r2] "+&d" (nqap_r2.pair)
: [nqap_r1] "d" (nqap_r1.pair)
: "cc", "memory", "0", "1");
- return reg1;
+ return reg1.status;
}
/**
@@ -389,7 +392,7 @@ static inline struct ap_queue_status ap_dqap(ap_qid_t qid,
unsigned long *resgr0)
{
unsigned long reg0 = resgr0 && *resgr0 ? *resgr0 : qid | 0x80000000UL;
- struct ap_queue_status reg1;
+ union ap_queue_status_reg reg1;
unsigned long reg2;
union register_pair rp1, rp2;
@@ -408,8 +411,9 @@ static inline struct ap_queue_status ap_dqap(ap_qid_t qid,
"2: lgr %[reg0],0\n" /* gr0 (qid + info) into reg0 */
" lgr %[reg1],1\n" /* gr1 (status) into reg1 */
" lgr %[reg2],2\n" /* gr2 (res length) into reg2 */
- : [reg0] "+&d" (reg0), [reg1] "=&d" (reg1), [reg2] "=&d" (reg2),
- [rp1] "+&d" (rp1.pair), [rp2] "+&d" (rp2.pair)
+ : [reg0] "+&d" (reg0), [reg1] "=&d" (reg1.value),
+ [reg2] "=&d" (reg2), [rp1] "+&d" (rp1.pair),
+ [rp2] "+&d" (rp2.pair)
:
: "cc", "memory", "0", "1", "2");
@@ -421,7 +425,7 @@ static inline struct ap_queue_status ap_dqap(ap_qid_t qid,
* Signal the caller that this dqap is only partially received
* with a special status response code 0xFF and *resgr0 updated
*/
- reg1.response_code = 0xFF;
+ reg1.status.response_code = 0xFF;
if (resgr0)
*resgr0 = reg0;
} else {
@@ -430,7 +434,7 @@ static inline struct ap_queue_status ap_dqap(ap_qid_t qid,
*resgr0 = 0;
}
- return reg1;
+ return reg1.status;
}
/*
diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h
index af1cd3a6f406..227466ce9e41 100644
--- a/arch/s390/include/asm/nmi.h
+++ b/arch/s390/include/asm/nmi.h
@@ -101,9 +101,8 @@ void nmi_alloc_mcesa_early(u64 *mcesad);
int nmi_alloc_mcesa(u64 *mcesad);
void nmi_free_mcesa(u64 *mcesad);
-void s390_handle_mcck(struct pt_regs *regs);
-void __s390_handle_mcck(void);
-int s390_do_machine_check(struct pt_regs *regs);
+void s390_handle_mcck(void);
+void s390_do_machine_check(struct pt_regs *regs);
#endif /* __ASSEMBLY__ */
#endif /* _ASM_S390_NMI_H */
diff --git a/arch/s390/include/asm/rwonce.h b/arch/s390/include/asm/rwonce.h
new file mode 100644
index 000000000000..91fc24520e82
--- /dev/null
+++ b/arch/s390/include/asm/rwonce.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ASM_S390_RWONCE_H
+#define __ASM_S390_RWONCE_H
+
+#include <linux/compiler_types.h>
+
+/*
+ * Use READ_ONCE_ALIGNED_128() for 128-bit block concurrent (atomic) read
+ * accesses. Note that x must be 128-bit aligned, otherwise a specification
+ * exception is generated.
+ */
+#define READ_ONCE_ALIGNED_128(x) \
+({ \
+ union { \
+ typeof(x) __x; \
+ __uint128_t val; \
+ } __u; \
+ \
+ BUILD_BUG_ON(sizeof(x) != 16); \
+ asm volatile( \
+ " lpq %[val],%[_x]\n" \
+ : [val] "=d" (__u.val) \
+ : [_x] "QS" (x) \
+ : "memory"); \
+ __u.__x; \
+})
+
+#include <asm-generic/rwonce.h>
+
+#endif /* __ASM_S390_RWONCE_H */
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 59eba19ae0f2..d26f02495636 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -36,6 +36,23 @@
int __bootdata(is_full_image);
+#define decompressor_handled_param(param) \
+static int __init ignore_decompressor_param_##param(char *s) \
+{ \
+ return 0; \
+} \
+early_param(#param, ignore_decompressor_param_##param)
+
+decompressor_handled_param(mem);
+decompressor_handled_param(vmalloc);
+decompressor_handled_param(dfltcc);
+decompressor_handled_param(noexec);
+decompressor_handled_param(facilities);
+decompressor_handled_param(nokaslr);
+#if IS_ENABLED(CONFIG_KVM)
+decompressor_handled_param(prot_virt);
+#endif
+
static void __init reset_tod_clock(void)
{
union tod_clock clk;
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index c8d8c9960936..76a06f3d3671 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -562,16 +562,6 @@ ENTRY(mcck_int_handler)
xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
lgr %r2,%r11 # pass pointer to pt_regs
brasl %r14,s390_do_machine_check
- cghi %r2,0
- je .Lmcck_return
- lg %r1,__LC_KERNEL_STACK # switch to kernel stack
- mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)
- xc __SF_BACKCHAIN(8,%r1),__SF_BACKCHAIN(%r1)
- la %r11,STACK_FRAME_OVERHEAD(%r1)
- lgr %r2,%r11
- lgr %r15,%r1
- brasl %r14,s390_handle_mcck
-.Lmcck_return:
lctlg %c1,%c1,__PT_CR1(%r11)
lmg %r0,%r10,__PT_R0(%r11)
mvc __LC_RETURN_MCCK_PSW(16),__PT_PSW(%r11) # move return PSW
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index 5e713f318de3..7b41ceecbb25 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -278,6 +278,7 @@ static void pop_kprobe(struct kprobe_ctlblk *kcb)
{
__this_cpu_write(current_kprobe, kcb->prev_kprobe.kp);
kcb->kprobe_status = kcb->prev_kprobe.status;
+ kcb->prev_kprobe.kp = NULL;
}
NOKPROBE_SYMBOL(pop_kprobe);
@@ -402,12 +403,11 @@ static int post_kprobe_handler(struct pt_regs *regs)
if (!p)
return 0;
+ resume_execution(p, regs);
if (kcb->kprobe_status != KPROBE_REENTER && p->post_handler) {
kcb->kprobe_status = KPROBE_HIT_SSDONE;
p->post_handler(p, regs, 0);
}
-
- resume_execution(p, regs);
pop_kprobe(kcb);
preempt_enable_no_resched();
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index 5dbf274719a9..38ec0487521c 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -156,7 +156,7 @@ NOKPROBE_SYMBOL(s390_handle_damage);
* Main machine check handler function. Will be called with interrupts disabled
* and machine checks enabled.
*/
-void __s390_handle_mcck(void)
+void s390_handle_mcck(void)
{
struct mcck_struct mcck;
@@ -192,23 +192,16 @@ void __s390_handle_mcck(void)
if (mcck.stp_queue)
stp_queue_work();
if (mcck.kill_task) {
- local_irq_enable();
printk(KERN_EMERG "mcck: Terminating task because of machine "
"malfunction (code 0x%016lx).\n", mcck.mcck_code);
printk(KERN_EMERG "mcck: task: %s, pid: %d.\n",
current->comm, current->pid);
- make_task_dead(SIGSEGV);
+ if (is_global_init(current))
+ panic("mcck: Attempting to kill init!\n");
+ do_send_sig_info(SIGKILL, SEND_SIG_PRIV, current, PIDTYPE_PID);
}
}
-void noinstr s390_handle_mcck(struct pt_regs *regs)
-{
- trace_hardirqs_off();
- pai_kernel_enter(regs);
- __s390_handle_mcck();
- pai_kernel_exit(regs);
- trace_hardirqs_on();
-}
/*
* returns 0 if register contents could be validated
* returns 1 otherwise
@@ -346,8 +339,7 @@ static void notrace s390_backup_mcck_info(struct pt_regs *regs)
struct sie_page *sie_page;
/* r14 contains the sie block, which was set in sie64a */
- struct kvm_s390_sie_block *sie_block =
- (struct kvm_s390_sie_block *) regs->gprs[14];
+ struct kvm_s390_sie_block *sie_block = phys_to_virt(regs->gprs[14]);
if (sie_block == NULL)
/* Something's seriously wrong, stop system. */
@@ -374,7 +366,7 @@ NOKPROBE_SYMBOL(s390_backup_mcck_info);
/*
* machine check handler.
*/
-int notrace s390_do_machine_check(struct pt_regs *regs)
+void notrace s390_do_machine_check(struct pt_regs *regs)
{
static int ipd_count;
static DEFINE_SPINLOCK(ipd_lock);
@@ -504,16 +496,10 @@ int notrace s390_do_machine_check(struct pt_regs *regs)
}
clear_cpu_flag(CIF_MCCK_GUEST);
- if (user_mode(regs) && mcck_pending) {
- irqentry_nmi_exit(regs, irq_state);
- return 1;
- }
-
if (mcck_pending)
schedule_mcck_handler();
irqentry_nmi_exit(regs, irq_state);
- return 0;
}
NOKPROBE_SYMBOL(s390_do_machine_check);
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 79904a839fb9..e7b867e2f73f 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1355,8 +1355,7 @@ static void hw_perf_event_update(struct perf_event *event, int flush_all)
num_sdb++;
/* Reset trailer (using compare-double-and-swap) */
- /* READ_ONCE() 16 byte header */
- prev.val = __cdsg(&te->header.val, 0, 0);
+ prev.val = READ_ONCE_ALIGNED_128(te->header.val);
do {
old.val = prev.val;
new.val = prev.val;
@@ -1558,8 +1557,7 @@ static bool aux_set_alert(struct aux_buffer *aux, unsigned long alert_index,
struct hws_trailer_entry *te;
te = aux_sdb_trailer(aux, alert_index);
- /* READ_ONCE() 16 byte header */
- prev.val = __cdsg(&te->header.val, 0, 0);
+ prev.val = READ_ONCE_ALIGNED_128(te->header.val);
do {
old.val = prev.val;
new.val = prev.val;
@@ -1637,8 +1635,7 @@ static bool aux_reset_buffer(struct aux_buffer *aux, unsigned long range,
idx_old = idx = aux->empty_mark + 1;
for (i = 0; i < range_scan; i++, idx++) {
te = aux_sdb_trailer(aux, idx);
- /* READ_ONCE() 16 byte header */
- prev.val = __cdsg(&te->header.val, 0, 0);
+ prev.val = READ_ONCE_ALIGNED_128(te->header.val);
do {
old.val = prev.val;
new.val = prev.val;
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 23c427284773..d4888453bbf8 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -333,6 +333,7 @@ static void pcpu_delegate(struct pcpu *pcpu,
}
/* Stop target cpu (if func returns this stops the current cpu). */
pcpu_sigp_retry(pcpu, SIGP_STOP, 0);
+ pcpu_sigp_retry(pcpu, SIGP_CPU_RESET, 0);
/* Restart func on the target cpu and stop the current cpu. */
if (lc) {
lc->restart_stack = stack;
@@ -522,7 +523,7 @@ static void smp_handle_ext_call(void)
if (test_bit(ec_call_function_single, &bits))
generic_smp_call_function_single_interrupt();
if (test_bit(ec_mcck_pending, &bits))
- __s390_handle_mcck();
+ s390_handle_mcck();
if (test_bit(ec_irq_work, &bits))
irq_work_run();
}
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 5060956b8e7d..1bc42ce26599 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -289,15 +289,17 @@ segment_overlaps_others (struct dcss_segment *seg)
/*
* real segment loading function, called from segment_load
+ * Must return either an error code < 0, or the segment type code >= 0
*/
static int
__segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long *end)
{
unsigned long start_addr, end_addr, dummy;
struct dcss_segment *seg;
- int rc, diag_cc;
+ int rc, diag_cc, segtype;
start_addr = end_addr = 0;
+ segtype = -1;
seg = kmalloc(sizeof(*seg), GFP_KERNEL | GFP_DMA);
if (seg == NULL) {
rc = -ENOMEM;
@@ -326,9 +328,9 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
seg->res_name[8] = '\0';
strlcat(seg->res_name, " (DCSS)", sizeof(seg->res_name));
seg->res->name = seg->res_name;
- rc = seg->vm_segtype;
- if (rc == SEG_TYPE_SC ||
- ((rc == SEG_TYPE_SR || rc == SEG_TYPE_ER) && !do_nonshared))
+ segtype = seg->vm_segtype;
+ if (segtype == SEG_TYPE_SC ||
+ ((segtype == SEG_TYPE_SR || segtype == SEG_TYPE_ER) && !do_nonshared))
seg->res->flags |= IORESOURCE_READONLY;
/* Check for overlapping resources before adding the mapping. */
@@ -386,7 +388,7 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
out_free:
kfree(seg);
out:
- return rc;
+ return rc < 0 ? rc : segtype;
}
/*
diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c
index a32457b4cbb8..2637fe1df727 100644
--- a/drivers/s390/crypto/ap_queue.c
+++ b/drivers/s390/crypto/ap_queue.c
@@ -29,8 +29,8 @@ static void __ap_flush_queue(struct ap_queue *aq);
*/
static int ap_queue_enable_irq(struct ap_queue *aq, void *ind)
{
+ union ap_qirq_ctrl qirqctrl = { .value = 0 };
struct ap_queue_status status;
- struct ap_qirq_ctrl qirqctrl = { 0 };
qirqctrl.ir = 1;
qirqctrl.isc = AP_ISC;
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index 28a36e016ea9..72e10abb103a 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -301,7 +301,7 @@ static void vfio_ap_free_aqic_resources(struct vfio_ap_queue *q)
*/
static struct ap_queue_status vfio_ap_irq_disable(struct vfio_ap_queue *q)
{
- struct ap_qirq_ctrl aqic_gisa = {};
+ union ap_qirq_ctrl aqic_gisa = { .value = 0 };
struct ap_queue_status status;
int retries = 5;
@@ -384,7 +384,7 @@ static struct ap_queue_status vfio_ap_irq_enable(struct vfio_ap_queue *q,
int isc,
struct kvm_vcpu *vcpu)
{
- struct ap_qirq_ctrl aqic_gisa = {};
+ union ap_qirq_ctrl aqic_gisa = { .value = 0 };
struct ap_queue_status status = {};
struct kvm_s390_gisa *gisa;
struct page *h_page;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-12 00:17:57 +0000