aboutsummaryrefslogtreecommitdiffstats
path: root/arch/s390
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/configs/debug_defconfig12
-rw-r--r--arch/s390/configs/defconfig9
-rw-r--r--arch/s390/configs/zfcpdump_defconfig2
-rw-r--r--arch/s390/include/asm/pci_io.h7
-rw-r--r--arch/s390/kernel/ftrace.c2
-rw-r--r--arch/s390/kernel/irq.c9
-rw-r--r--arch/s390/kernel/machine_kexec_file.c38
-rw-r--r--arch/s390/lib/test_unwind.c5
8 files changed, 66 insertions, 18 deletions
diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index fd825097cf04..e45cc27716de 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -117,6 +117,7 @@ CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
CONFIG_XFRM_USER=m
CONFIG_NET_KEY=m
+CONFIG_NET_SWITCHDEV=y
CONFIG_SMC=m
CONFIG_SMC_DIAG=m
CONFIG_INET=y
@@ -403,7 +404,6 @@ CONFIG_DEVTMPFS=y
CONFIG_CONNECTOR=y
CONFIG_ZRAM=y
CONFIG_BLK_DEV_LOOP=m
-CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_DRBD=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
@@ -476,6 +476,7 @@ CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
CONFIG_VXLAN=m
CONFIG_BAREUDP=m
+CONFIG_AMT=m
CONFIG_TUN=m
CONFIG_VETH=m
CONFIG_VIRTIO_NET=m
@@ -489,6 +490,7 @@ CONFIG_NLMON=m
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_VENDOR_ASIX is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
@@ -510,6 +512,7 @@ CONFIG_NLMON=m
CONFIG_MLX4_EN=m
CONFIG_MLX5_CORE=m
CONFIG_MLX5_CORE_EN=y
+CONFIG_MLX5_ESWITCH=y
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
@@ -571,6 +574,7 @@ CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
CONFIG_SOFT_WATCHDOG=m
CONFIG_DIAG288_WATCHDOG=m
+# CONFIG_DRM_DEBUG_MODESET_LOCK is not set
CONFIG_FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
@@ -775,12 +779,14 @@ CONFIG_CRC4=m
CONFIG_CRC7=m
CONFIG_CRC8=m
CONFIG_RANDOM32_SELFTEST=y
+CONFIG_XZ_DEC_MICROLZMA=y
CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=0
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_DWARF4=y
+CONFIG_DEBUG_INFO_BTF=y
CONFIG_GDB_SCRIPTS=y
CONFIG_HEADERS_INSTALL=y
CONFIG_DEBUG_SECTION_MISMATCH=y
@@ -807,6 +813,7 @@ CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_MEMORY_NOTIFIER_ERROR_INJECT=m
CONFIG_DEBUG_PER_CPU_MAPS=y
CONFIG_KFENCE=y
+CONFIG_KFENCE_STATIC_KEYS=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_DETECT_HUNG_TASK=y
@@ -842,6 +849,7 @@ CONFIG_FTRACE_STARTUP_TEST=y
CONFIG_SAMPLES=y
CONFIG_SAMPLE_TRACE_PRINTK=m
CONFIG_SAMPLE_FTRACE_DIRECT=m
+CONFIG_SAMPLE_FTRACE_DIRECT_MULTI=m
CONFIG_DEBUG_ENTRY=y
CONFIG_CIO_INJECT=y
CONFIG_KUNIT=m
@@ -860,7 +868,7 @@ CONFIG_FAIL_FUNCTION=y
CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=y
CONFIG_LKDTM=m
CONFIG_TEST_MIN_HEAP=y
-CONFIG_KPROBES_SANITY_TEST=y
+CONFIG_KPROBES_SANITY_TEST=m
CONFIG_RBTREE_TEST=y
CONFIG_INTERVAL_TREE_TEST=m
CONFIG_PERCPU_TEST=m
diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig
index c9c3cedff2d8..1c750bfca2d8 100644
--- a/arch/s390/configs/defconfig
+++ b/arch/s390/configs/defconfig
@@ -109,6 +109,7 @@ CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
CONFIG_XFRM_USER=m
CONFIG_NET_KEY=m
+CONFIG_NET_SWITCHDEV=y
CONFIG_SMC=m
CONFIG_SMC_DIAG=m
CONFIG_INET=y
@@ -394,7 +395,6 @@ CONFIG_DEVTMPFS=y
CONFIG_CONNECTOR=y
CONFIG_ZRAM=y
CONFIG_BLK_DEV_LOOP=m
-CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_DRBD=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
@@ -467,6 +467,7 @@ CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
CONFIG_VXLAN=m
CONFIG_BAREUDP=m
+CONFIG_AMT=m
CONFIG_TUN=m
CONFIG_VETH=m
CONFIG_VIRTIO_NET=m
@@ -480,6 +481,7 @@ CONFIG_NLMON=m
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_VENDOR_ASIX is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
@@ -501,6 +503,7 @@ CONFIG_NLMON=m
CONFIG_MLX4_EN=m
CONFIG_MLX5_CORE=m
CONFIG_MLX5_CORE_EN=y
+CONFIG_MLX5_ESWITCH=y
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
@@ -762,12 +765,14 @@ CONFIG_PRIME_NUMBERS=m
CONFIG_CRC4=m
CONFIG_CRC7=m
CONFIG_CRC8=m
+CONFIG_XZ_DEC_MICROLZMA=y
CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=0
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_DWARF4=y
+CONFIG_DEBUG_INFO_BTF=y
CONFIG_GDB_SCRIPTS=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_MAGIC_SYSRQ=y
@@ -792,9 +797,11 @@ CONFIG_HIST_TRIGGERS=y
CONFIG_SAMPLES=y
CONFIG_SAMPLE_TRACE_PRINTK=m
CONFIG_SAMPLE_FTRACE_DIRECT=m
+CONFIG_SAMPLE_FTRACE_DIRECT_MULTI=m
CONFIG_KUNIT=m
CONFIG_KUNIT_DEBUGFS=y
CONFIG_LKDTM=m
+CONFIG_KPROBES_SANITY_TEST=m
CONFIG_PERCPU_TEST=m
CONFIG_ATOMIC64_SELFTEST=y
CONFIG_TEST_BPF=m
diff --git a/arch/s390/configs/zfcpdump_defconfig b/arch/s390/configs/zfcpdump_defconfig
index aceccf3b9a88..eed3b9acfa71 100644
--- a/arch/s390/configs/zfcpdump_defconfig
+++ b/arch/s390/configs/zfcpdump_defconfig
@@ -65,9 +65,11 @@ CONFIG_ZFCP=y
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_LSM="yama,loadpin,safesetid,integrity"
# CONFIG_ZLIB_DFLTCC is not set
+CONFIG_XZ_DEC_MICROLZMA=y
CONFIG_PRINTK_TIME=y
# CONFIG_SYMBOLIC_ERRNAME is not set
CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_INFO_BTF=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_PANIC_ON_OOPS=y
diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h
index e4dc64cc9c55..287bb88f7698 100644
--- a/arch/s390/include/asm/pci_io.h
+++ b/arch/s390/include/asm/pci_io.h
@@ -14,12 +14,13 @@
/* I/O Map */
#define ZPCI_IOMAP_SHIFT 48
-#define ZPCI_IOMAP_ADDR_BASE 0x8000000000000000UL
+#define ZPCI_IOMAP_ADDR_SHIFT 62
+#define ZPCI_IOMAP_ADDR_BASE (1UL << ZPCI_IOMAP_ADDR_SHIFT)
#define ZPCI_IOMAP_ADDR_OFF_MASK ((1UL << ZPCI_IOMAP_SHIFT) - 1)
#define ZPCI_IOMAP_MAX_ENTRIES \
- ((ULONG_MAX - ZPCI_IOMAP_ADDR_BASE + 1) / (1UL << ZPCI_IOMAP_SHIFT))
+ (1UL << (ZPCI_IOMAP_ADDR_SHIFT - ZPCI_IOMAP_SHIFT))
#define ZPCI_IOMAP_ADDR_IDX_MASK \
- (~ZPCI_IOMAP_ADDR_OFF_MASK - ZPCI_IOMAP_ADDR_BASE)
+ ((ZPCI_IOMAP_ADDR_BASE - 1) & ~ZPCI_IOMAP_ADDR_OFF_MASK)
struct zpci_iomap_entry {
u32 fh;
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 5510c7d10ddc..21d62d8b6b9a 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -290,7 +290,6 @@ void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
return;
regs = ftrace_get_regs(fregs);
- preempt_disable_notrace();
p = get_kprobe((kprobe_opcode_t *)ip);
if (unlikely(!p) || kprobe_disabled(p))
goto out;
@@ -318,7 +317,6 @@ void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
}
__this_cpu_write(current_kprobe, NULL);
out:
- preempt_enable_notrace();
ftrace_test_recursion_unlock(bit);
}
NOKPROBE_SYMBOL(kprobe_ftrace_handler);
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 0df83ecaa2e0..cb7099682340 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -138,7 +138,7 @@ void noinstr do_io_irq(struct pt_regs *regs)
struct pt_regs *old_regs = set_irq_regs(regs);
int from_idle;
- irq_enter();
+ irq_enter_rcu();
if (user_mode(regs)) {
update_timer_sys();
@@ -158,7 +158,8 @@ void noinstr do_io_irq(struct pt_regs *regs)
do_irq_async(regs, IO_INTERRUPT);
} while (MACHINE_IS_LPAR && irq_pending(regs));
- irq_exit();
+ irq_exit_rcu();
+
set_irq_regs(old_regs);
irqentry_exit(regs, state);
@@ -172,7 +173,7 @@ void noinstr do_ext_irq(struct pt_regs *regs)
struct pt_regs *old_regs = set_irq_regs(regs);
int from_idle;
- irq_enter();
+ irq_enter_rcu();
if (user_mode(regs)) {
update_timer_sys();
@@ -190,7 +191,7 @@ void noinstr do_ext_irq(struct pt_regs *regs)
do_irq_async(regs, EXT_INTERRUPT);
- irq_exit();
+ irq_exit_rcu();
set_irq_regs(old_regs);
irqentry_exit(regs, state);
diff --git a/arch/s390/kernel/machine_kexec_file.c b/arch/s390/kernel/machine_kexec_file.c
index 9975ad200d74..8f43575a4dd3 100644
--- a/arch/s390/kernel/machine_kexec_file.c
+++ b/arch/s390/kernel/machine_kexec_file.c
@@ -7,6 +7,8 @@
* Author(s): Philipp Rudo <prudo@linux.vnet.ibm.com>
*/
+#define pr_fmt(fmt) "kexec: " fmt
+
#include <linux/elf.h>
#include <linux/errno.h>
#include <linux/kexec.h>
@@ -290,8 +292,16 @@ int arch_kexec_apply_relocations_add(struct purgatory_info *pi,
const Elf_Shdr *relsec,
const Elf_Shdr *symtab)
{
+ const char *strtab, *name, *shstrtab;
+ const Elf_Shdr *sechdrs;
Elf_Rela *relas;
int i, r_type;
+ int ret;
+
+ /* String & section header string table */
+ sechdrs = (void *)pi->ehdr + pi->ehdr->e_shoff;
+ strtab = (char *)pi->ehdr + sechdrs[symtab->sh_link].sh_offset;
+ shstrtab = (char *)pi->ehdr + sechdrs[pi->ehdr->e_shstrndx].sh_offset;
relas = (void *)pi->ehdr + relsec->sh_offset;
@@ -304,15 +314,27 @@ int arch_kexec_apply_relocations_add(struct purgatory_info *pi,
sym = (void *)pi->ehdr + symtab->sh_offset;
sym += ELF64_R_SYM(relas[i].r_info);
- if (sym->st_shndx == SHN_UNDEF)
+ if (sym->st_name)
+ name = strtab + sym->st_name;
+ else
+ name = shstrtab + sechdrs[sym->st_shndx].sh_name;
+
+ if (sym->st_shndx == SHN_UNDEF) {
+ pr_err("Undefined symbol: %s\n", name);
return -ENOEXEC;
+ }
- if (sym->st_shndx == SHN_COMMON)
+ if (sym->st_shndx == SHN_COMMON) {
+ pr_err("symbol '%s' in common section\n", name);
return -ENOEXEC;
+ }
if (sym->st_shndx >= pi->ehdr->e_shnum &&
- sym->st_shndx != SHN_ABS)
+ sym->st_shndx != SHN_ABS) {
+ pr_err("Invalid section %d for symbol %s\n",
+ sym->st_shndx, name);
return -ENOEXEC;
+ }
loc = pi->purgatory_buf;
loc += section->sh_offset;
@@ -326,7 +348,15 @@ int arch_kexec_apply_relocations_add(struct purgatory_info *pi,
addr = section->sh_addr + relas[i].r_offset;
r_type = ELF64_R_TYPE(relas[i].r_info);
- arch_kexec_do_relocs(r_type, loc, val, addr);
+
+ if (r_type == R_390_PLT32DBL)
+ r_type = R_390_PC32DBL;
+
+ ret = arch_kexec_do_relocs(r_type, loc, val, addr);
+ if (ret) {
+ pr_err("Unknown rela relocation: %d\n", r_type);
+ return -ENOEXEC;
+ }
}
return 0;
}
diff --git a/arch/s390/lib/test_unwind.c b/arch/s390/lib/test_unwind.c
index cfc5f5557c06..bc7973359ae2 100644
--- a/arch/s390/lib/test_unwind.c
+++ b/arch/s390/lib/test_unwind.c
@@ -173,10 +173,11 @@ static noinline int unwindme_func4(struct unwindme *u)
}
/*
- * trigger specification exception
+ * Trigger operation exception; use insn notation to bypass
+ * llvm's integrated assembler sanity checks.
*/
asm volatile(
- " mvcl %%r1,%%r1\n"
+ " .insn e,0x0000\n" /* illegal opcode */
"0: nopr %%r7\n"
EX_TABLE(0b, 0b)
:);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.