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s390 updates for 6.1-rc5

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- fix memcpy warning about field-spanning write in zcrypt driver.
 
 - minor updates to defconfigs.
 
 - Remove CONFIG_DEBUG_INFO_BTF from all defconfigs and add btf.config
   addon config file. It significantly decreases compile time and allows
   quickly enabling that option into the current kernel config.
 
 - Add kasan.config addon config file which allows to easily enable
   KASAN into the current kernel config.
 
 - binutils commit 906f69cf65da ("IBM zSystems: Issue error for *DBL
   relocs on misaligned symbols") caused several link errors.
   Always build relocatable kernel to avoid this problem.
 
 - Raise the minimum clang version to 15.0.0 to avoid silent generation
   of a corrupted code.
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Merge tag 's390-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Alexander Gordeev:

 - fix memcpy warning about field-spanning write in zcrypt driver

 - minor updates to defconfigs

 - remove CONFIG_DEBUG_INFO_BTF from all defconfigs and add btf.config
   addon config file. It significantly decreases compile time and allows
   quickly enabling that option into the current kernel config

 - add kasan.config addon config file which allows to easily enable
   KASAN into the current kernel config

 - binutils commit 906f69cf65da ("IBM zSystems: Issue error for *DBL
   relocs on misaligned symbols") caused several link errors. Always
   build relocatable kernel to avoid this problem

 - raise the minimum clang version to 15.0.0 to avoid silent generation
   of a corrupted code

* tag 's390-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  scripts/min-tool-version.sh: raise minimum clang version to 15.0.0 for s390
  s390: always build relocatable kernel
  s390/configs: add kasan.config addon config file
  s390/configs: move CONFIG_DEBUG_INFO_BTF into btf.config addon config
  s390: update defconfigs
  s390/zcrypt: fix warning about field-spanning write
This commit is contained in:
Linus Torvalds 2022-11-11 11:49:20 -08:00
commit f5020a08b2
11 changed files with 90 additions and 84 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/s390/Kconfig
View File

@ -568,8 +568,7 @@ config EXPOLINE_FULL
endchoice
config RELOCATABLE
bool "Build a relocatable kernel"
default y
def_bool y
help
This builds a kernel image that retains relocation information
so it can be loaded at an arbitrary address.
@ -578,10 +577,11 @@ config RELOCATABLE
bootup process.
The relocations make the kernel image about 15% larger (compressed
10%), but are discarded at runtime.
Note: this option exists only for documentation purposes, please do
not remove it.
config RANDOMIZE_BASE
bool "Randomize the address of the kernel image (KASLR)"
depends on RELOCATABLE
default y
help
In support of Kernel Address Space Layout Randomization (KASLR),

2
arch/s390/Makefile
View File

@ -14,10 +14,8 @@ KBUILD_AFLAGS_MODULE += -fPIC
KBUILD_CFLAGS_MODULE += -fPIC
KBUILD_AFLAGS += -m64
KBUILD_CFLAGS += -m64
ifeq ($(CONFIG_RELOCATABLE),y)
KBUILD_CFLAGS += -fPIE
LDFLAGS_vmlinux := -pie
endif
aflags_dwarf := -Wa,-gdwarf-2
KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -D__ASSEMBLY__
ifndef CONFIG_AS_IS_LLVM

3
arch/s390/boot/Makefile
View File

@ -37,9 +37,8 @@ CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
obj-y := head.o als.o startup.o mem_detect.o ipl_parm.o ipl_report.o
obj-y += string.o ebcdic.o sclp_early_core.o mem.o ipl_vmparm.o cmdline.o
obj-y += version.o pgm_check_info.o ctype.o ipl_data.o
obj-y += version.o pgm_check_info.o ctype.o ipl_data.o machine_kexec_reloc.o
obj-$(findstring y, $(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) $(CONFIG_PGSTE)) += uv.o
obj-$(CONFIG_RELOCATABLE) += machine_kexec_reloc.o
obj-$(CONFIG_RANDOMIZE_BASE) += kaslr.o
obj-y += $(if $(CONFIG_KERNEL_UNCOMPRESSED),,decompressor.o) info.o
obj-$(CONFIG_KERNEL_ZSTD) += clz_ctz.o

3
arch/s390/boot/startup.c
View File

@ -291,8 +291,7 @@ void startup_kernel(void)
clear_bss_section();
copy_bootdata();
if (IS_ENABLED(CONFIG_RELOCATABLE))
handle_relocs(__kaslr_offset);
handle_relocs(__kaslr_offset);
if (__kaslr_offset) {
/*

1
arch/s390/configs/btf.config Normal file
View File

@ -0,0 +1 @@
CONFIG_DEBUG_INFO_BTF=y

65
arch/s390/configs/debug_defconfig
View File

@ -723,52 +723,42 @@ CONFIG_CRYPTO_ECDSA=m
CONFIG_CRYPTO_ECRDSA=m
CONFIG_CRYPTO_SM2=m
CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_CFB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA3=m
CONFIG_CRYPTO_SHA3_256_S390=m
CONFIG_CRYPTO_SHA3_512_S390=m
CONFIG_CRYPTO_SM3_GENERIC=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_AES_TI=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_CFB=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
CONFIG_CRYPTO_SM3_GENERIC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_842=m
CONFIG_CRYPTO_LZ4=m
CONFIG_CRYPTO_LZ4HC=m
@ -779,6 +769,16 @@ CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_STATS=y
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA3_256_S390=m
CONFIG_CRYPTO_SHA3_512_S390=m
CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_ZCRYPT=m
CONFIG_PKEY=m
CONFIG_CRYPTO_PAES_S390=m
@ -797,7 +797,6 @@ CONFIG_CMA_SIZE_MBYTES=0
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO_DWARF4=y
CONFIG_DEBUG_INFO_BTF=y
CONFIG_GDB_SCRIPTS=y
CONFIG_HEADERS_INSTALL=y
CONFIG_DEBUG_SECTION_MISMATCH=y

67
arch/s390/configs/defconfig
View File

@ -707,53 +707,43 @@ CONFIG_CRYPTO_ECDSA=m
CONFIG_CRYPTO_ECRDSA=m
CONFIG_CRYPTO_SM2=m
CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_CFB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_OFB=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA3=m
CONFIG_CRYPTO_SHA3_256_S390=m
CONFIG_CRYPTO_SHA3_512_S390=m
CONFIG_CRYPTO_SM3_GENERIC=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_AES_TI=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_CFB=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_OFB=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
CONFIG_CRYPTO_SM3_GENERIC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_842=m
CONFIG_CRYPTO_LZ4=m
CONFIG_CRYPTO_LZ4HC=m
@ -764,6 +754,16 @@ CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_STATS=y
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA3_256_S390=m
CONFIG_CRYPTO_SHA3_512_S390=m
CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_CHACHA_S390=m
CONFIG_ZCRYPT=m
CONFIG_PKEY=m
CONFIG_CRYPTO_PAES_S390=m
@ -781,7 +781,6 @@ CONFIG_CMA_SIZE_MBYTES=0
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO_DWARF4=y
CONFIG_DEBUG_INFO_BTF=y
CONFIG_GDB_SCRIPTS=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_MAGIC_SYSRQ=y

3
arch/s390/configs/kasan.config Normal file
View File

@ -0,0 +1,3 @@
CONFIG_KASAN=y
CONFIG_KASAN_INLINE=y
CONFIG_KASAN_VMALLOC=y

1
arch/s390/configs/zfcpdump_defconfig
View File

@ -74,7 +74,6 @@ CONFIG_PRINTK_TIME=y
# CONFIG_SYMBOLIC_ERRNAME is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO_DWARF4=y
CONFIG_DEBUG_INFO_BTF=y
CONFIG_DEBUG_FS=y
CONFIG_PANIC_ON_OOPS=y
# CONFIG_SCHED_DEBUG is not set

21
drivers/s390/crypto/zcrypt_msgtype6.c
View File

@ -342,7 +342,10 @@ static int xcrb_msg_to_type6cprb_msgx(bool userspace, struct ap_message *ap_msg,
};
struct {
struct type6_hdr hdr;
struct CPRBX cprbx;
union {
struct CPRBX cprbx;
DECLARE_FLEX_ARRAY(u8, userdata);
};
} __packed * msg = ap_msg->msg;
int rcblen = CEIL4(xcrb->request_control_blk_length);
@ -403,7 +406,8 @@ static int xcrb_msg_to_type6cprb_msgx(bool userspace, struct ap_message *ap_msg,
msg->hdr.fromcardlen2 = xcrb->reply_data_length;
/* prepare CPRB */
if (z_copy_from_user(userspace, &msg->cprbx, xcrb->request_control_blk_addr,
if (z_copy_from_user(userspace, msg->userdata,
xcrb->request_control_blk_addr,
xcrb->request_control_blk_length))
return -EFAULT;
if (msg->cprbx.cprb_len + sizeof(msg->hdr.function_code) >
@ -469,9 +473,14 @@ static int xcrb_msg_to_type6_ep11cprb_msgx(bool userspace, struct ap_message *ap
struct {
struct type6_hdr hdr;
struct ep11_cprb cprbx;
unsigned char pld_tag; /* fixed value 0x30 */
unsigned char pld_lenfmt; /* payload length format */
union {
struct {
struct ep11_cprb cprbx;
unsigned char pld_tag; /* fixed value 0x30 */
unsigned char pld_lenfmt; /* length format */
} __packed;
DECLARE_FLEX_ARRAY(u8, userdata);
};
} __packed * msg = ap_msg->msg;
struct pld_hdr {
@ -500,7 +509,7 @@ static int xcrb_msg_to_type6_ep11cprb_msgx(bool userspace, struct ap_message *ap
msg->hdr.fromcardlen1 = xcrb->resp_len;
/* Import CPRB data from the ioctl input parameter */
if (z_copy_from_user(userspace, &msg->cprbx.cprb_len,
if (z_copy_from_user(userspace, msg->userdata,
(char __force __user *)xcrb->req, xcrb->req_len)) {
return -EFAULT;
}

2
scripts/min-tool-version.sh
View File

@ -25,7 +25,7 @@ icc)
;;
llvm)
if [ "$SRCARCH" = s390 ]; then
echo 14.0.0
echo 15.0.0
else
echo 11.0.0
fi