summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-27 18:58:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-27 18:58:04 +0300
commit43e317c1bbdfe1d4d6d19d28f925f400898d41b9 (patch)
tree2a6be71740664317d31847d89d5e544f861d8823 /arch
parent5efbd93708df56e0fb92b4398960a5bb1ab62f02 (diff)
parent98abe0227827f45cddb21875b2ffa9aeca3848b3 (diff)
downloadlinux-43e317c1bbdfe1d4d6d19d28f925f400898d41b9.tar.xz
Merge tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Heiko Carstens: - Add ABI to kernel image file which allows e.g. the file utility to figure out the kernel version. - Wire up clone3 system call. - Add support for kasan bitops instrumentation. - uapi header cleanup: use __u{16,32,64} instead of uint{16,32,64}_t. - Provide proper ARCH_ZONE_DMA_BITS so the s390 DMA zone is correctly defined with 2 GB instead of the default value of 1 MB. - Farhan Ali leaves the group of vfio-ccw maintainers. - Various small vfio-ccw fixes. - Add missing locking for airq_areas array in virtio code. - Minor qdio improvements. * tag 's390-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: MAINTAINERS: vfio-ccw: Remove myself as the maintainer s390/mm: use shared variables for sysctl range check virtio/s390: fix race on airq_areas[] s390/dma: provide proper ARCH_ZONE_DMA_BITS value s390/kasan: add bitops instrumentation s390/bitops: make test functions return bool s390: wire up clone3 system call kbuild: enable arch/s390/include/uapi/asm/zcrypt.h for uapi header test s390: use __u{16,32,64} instead of uint{16,32,64}_t in uapi header s390/hypfs: fix a typo in the name of a function s390/qdio: restrict QAOB usage to IQD unicast queues s390/qdio: add sanity checks to the fast-requeue path s390: enable detection of kernel version from bzImage Documentation: fix vfio-ccw doc vfio-ccw: Update documentation for csch/hsch vfio-ccw: Don't call cp_free if we are processing a channel program vfio-ccw: Set pa_nr to 0 if memory allocation fails for pa_iova_pfn vfio-ccw: Fix memory leak and don't call cp_free in cp_init vfio-ccw: Fix misleading comment when setting orb.cmd.c64
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/boot/Makefile2
-rw-r--r--arch/s390/boot/boot.h1
-rw-r--r--arch/s390/boot/head.S1
-rw-r--r--arch/s390/boot/version.c7
-rw-r--r--arch/s390/hypfs/hypfs_vm.c4
-rw-r--r--arch/s390/include/asm/bitops.h73
-rw-r--r--arch/s390/include/asm/page.h2
-rw-r--r--arch/s390/include/asm/setup.h4
-rw-r--r--arch/s390/include/asm/unistd.h1
-rw-r--r--arch/s390/include/uapi/asm/zcrypt.h35
-rw-r--r--arch/s390/kernel/syscalls/syscall.tbl2
-rw-r--r--arch/s390/mm/pgalloc.c6
12 files changed, 79 insertions, 59 deletions
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 7cba96e7587b..4cf0bddb7d92 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -36,7 +36,7 @@ CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
obj-y := head.o als.o startup.o mem_detect.o ipl_parm.o ipl_report.o
obj-y += string.o ebcdic.o sclp_early_core.o mem.o ipl_vmparm.o cmdline.o
-obj-y += ctype.o text_dma.o
+obj-y += version.o ctype.o text_dma.o
obj-$(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) += uv.o
obj-$(CONFIG_RELOCATABLE) += machine_kexec_reloc.o
obj-$(CONFIG_RANDOMIZE_BASE) += kaslr.o
diff --git a/arch/s390/boot/boot.h b/arch/s390/boot/boot.h
index ad57c2205a71..082905d97309 100644
--- a/arch/s390/boot/boot.h
+++ b/arch/s390/boot/boot.h
@@ -12,6 +12,7 @@ void print_missing_facilities(void);
unsigned long get_random_base(unsigned long safe_addr);
extern int kaslr_enabled;
+extern const char kernel_version[];
unsigned long read_ipl_report(unsigned long safe_offset);
diff --git a/arch/s390/boot/head.S b/arch/s390/boot/head.S
index 028aab03a9e7..2087bed6e60f 100644
--- a/arch/s390/boot/head.S
+++ b/arch/s390/boot/head.S
@@ -361,6 +361,7 @@ ENTRY(startup_kdump)
.quad 0 # INITRD_SIZE
.quad 0 # OLDMEM_BASE
.quad 0 # OLDMEM_SIZE
+ .quad kernel_version # points to kernel version string
.org COMMAND_LINE
.byte "root=/dev/ram0 ro"
diff --git a/arch/s390/boot/version.c b/arch/s390/boot/version.c
new file mode 100644
index 000000000000..d32e58bdda6a
--- /dev/null
+++ b/arch/s390/boot/version.c
@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <generated/utsrelease.h>
+#include <generated/compile.h>
+#include "boot.h"
+
+const char kernel_version[] = UTS_RELEASE
+ " (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ") " UTS_VERSION;
diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
index 42f2375c203e..e1fcc03159ef 100644
--- a/arch/s390/hypfs/hypfs_vm.c
+++ b/arch/s390/hypfs/hypfs_vm.c
@@ -118,7 +118,7 @@ do { \
return PTR_ERR(rc); \
} while(0)
-static int hpyfs_vm_create_guest(struct dentry *systems_dir,
+static int hypfs_vm_create_guest(struct dentry *systems_dir,
struct diag2fc_data *data)
{
char guest_name[NAME_LEN + 1] = {};
@@ -219,7 +219,7 @@ int hypfs_vm_create_files(struct dentry *root)
}
for (i = 0; i < count; i++) {
- rc = hpyfs_vm_create_guest(dir, &(data[i]));
+ rc = hypfs_vm_create_guest(dir, &(data[i]));
if (rc)
goto failed;
}
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 9900d655014c..b8833ac983fa 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -35,6 +35,7 @@
#include <linux/typecheck.h>
#include <linux/compiler.h>
+#include <linux/types.h>
#include <asm/atomic_ops.h>
#include <asm/barrier.h>
@@ -55,7 +56,7 @@ __bitops_byte(unsigned long nr, volatile unsigned long *ptr)
return ((unsigned char *)ptr) + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
}
-static inline void set_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline void arch_set_bit(unsigned long nr, volatile unsigned long *ptr)
{
unsigned long *addr = __bitops_word(nr, ptr);
unsigned long mask;
@@ -76,7 +77,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *ptr)
__atomic64_or(mask, (long *)addr);
}
-static inline void clear_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline void arch_clear_bit(unsigned long nr, volatile unsigned long *ptr)
{
unsigned long *addr = __bitops_word(nr, ptr);
unsigned long mask;
@@ -97,7 +98,8 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *ptr)
__atomic64_and(mask, (long *)addr);
}
-static inline void change_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline void arch_change_bit(unsigned long nr,
+ volatile unsigned long *ptr)
{
unsigned long *addr = __bitops_word(nr, ptr);
unsigned long mask;
@@ -118,8 +120,8 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *ptr)
__atomic64_xor(mask, (long *)addr);
}
-static inline int
-test_and_set_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline bool arch_test_and_set_bit(unsigned long nr,
+ volatile unsigned long *ptr)
{
unsigned long *addr = __bitops_word(nr, ptr);
unsigned long old, mask;
@@ -129,8 +131,8 @@ test_and_set_bit(unsigned long nr, volatile unsigned long *ptr)
return (old & mask) != 0;
}
-static inline int
-test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline bool arch_test_and_clear_bit(unsigned long nr,
+ volatile unsigned long *ptr)
{
unsigned long *addr = __bitops_word(nr, ptr);
unsigned long old, mask;
@@ -140,8 +142,8 @@ test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr)
return (old & ~mask) != 0;
}
-static inline int
-test_and_change_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline bool arch_test_and_change_bit(unsigned long nr,
+ volatile unsigned long *ptr)
{
unsigned long *addr = __bitops_word(nr, ptr);
unsigned long old, mask;
@@ -151,30 +153,31 @@ test_and_change_bit(unsigned long nr, volatile unsigned long *ptr)
return (old & mask) != 0;
}
-static inline void __set_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline void arch___set_bit(unsigned long nr, volatile unsigned long *ptr)
{
unsigned char *addr = __bitops_byte(nr, ptr);
*addr |= 1 << (nr & 7);
}
-static inline void
-__clear_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline void arch___clear_bit(unsigned long nr,
+ volatile unsigned long *ptr)
{
unsigned char *addr = __bitops_byte(nr, ptr);
*addr &= ~(1 << (nr & 7));
}
-static inline void __change_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline void arch___change_bit(unsigned long nr,
+ volatile unsigned long *ptr)
{
unsigned char *addr = __bitops_byte(nr, ptr);
*addr ^= 1 << (nr & 7);
}
-static inline int
-__test_and_set_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline bool arch___test_and_set_bit(unsigned long nr,
+ volatile unsigned long *ptr)
{
unsigned char *addr = __bitops_byte(nr, ptr);
unsigned char ch;
@@ -184,8 +187,8 @@ __test_and_set_bit(unsigned long nr, volatile unsigned long *ptr)
return (ch >> (nr & 7)) & 1;
}
-static inline int
-__test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline bool arch___test_and_clear_bit(unsigned long nr,
+ volatile unsigned long *ptr)
{
unsigned char *addr = __bitops_byte(nr, ptr);
unsigned char ch;
@@ -195,8 +198,8 @@ __test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr)
return (ch >> (nr & 7)) & 1;
}
-static inline int
-__test_and_change_bit(unsigned long nr, volatile unsigned long *ptr)
+static inline bool arch___test_and_change_bit(unsigned long nr,
+ volatile unsigned long *ptr)
{
unsigned char *addr = __bitops_byte(nr, ptr);
unsigned char ch;
@@ -206,7 +209,8 @@ __test_and_change_bit(unsigned long nr, volatile unsigned long *ptr)
return (ch >> (nr & 7)) & 1;
}
-static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr)
+static inline bool arch_test_bit(unsigned long nr,
+ const volatile unsigned long *ptr)
{
const volatile unsigned char *addr;
@@ -215,28 +219,30 @@ static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr)
return (*addr >> (nr & 7)) & 1;
}
-static inline int test_and_set_bit_lock(unsigned long nr,
- volatile unsigned long *ptr)
+static inline bool arch_test_and_set_bit_lock(unsigned long nr,
+ volatile unsigned long *ptr)
{
- if (test_bit(nr, ptr))
+ if (arch_test_bit(nr, ptr))
return 1;
- return test_and_set_bit(nr, ptr);
+ return arch_test_and_set_bit(nr, ptr);
}
-static inline void clear_bit_unlock(unsigned long nr,
- volatile unsigned long *ptr)
+static inline void arch_clear_bit_unlock(unsigned long nr,
+ volatile unsigned long *ptr)
{
smp_mb__before_atomic();
- clear_bit(nr, ptr);
+ arch_clear_bit(nr, ptr);
}
-static inline void __clear_bit_unlock(unsigned long nr,
- volatile unsigned long *ptr)
+static inline void arch___clear_bit_unlock(unsigned long nr,
+ volatile unsigned long *ptr)
{
smp_mb();
- __clear_bit(nr, ptr);
+ arch___clear_bit(nr, ptr);
}
+#include <asm-generic/bitops-instrumented.h>
+
/*
* Functions which use MSB0 bit numbering.
* The bits are numbered:
@@ -261,7 +267,8 @@ static inline void clear_bit_inv(unsigned long nr, volatile unsigned long *ptr)
return clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
}
-static inline int test_and_clear_bit_inv(unsigned long nr, volatile unsigned long *ptr)
+static inline bool test_and_clear_bit_inv(unsigned long nr,
+ volatile unsigned long *ptr)
{
return test_and_clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
}
@@ -276,8 +283,8 @@ static inline void __clear_bit_inv(unsigned long nr, volatile unsigned long *ptr
return __clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
}
-static inline int test_bit_inv(unsigned long nr,
- const volatile unsigned long *ptr)
+static inline bool test_bit_inv(unsigned long nr,
+ const volatile unsigned long *ptr)
{
return test_bit(nr ^ (BITS_PER_LONG - 1), ptr);
}
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index a4d38092530a..823578c6b9e2 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -177,6 +177,8 @@ static inline int devmem_is_allowed(unsigned long pfn)
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define ARCH_ZONE_DMA_BITS 31
+
#include <asm-generic/memory_model.h>
#include <asm-generic/getorder.h>
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 82deb8fc8319..c5cfff7b1f91 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -54,6 +54,7 @@
#define INITRD_SIZE_OFFSET 0x10410
#define OLDMEM_BASE_OFFSET 0x10418
#define OLDMEM_SIZE_OFFSET 0x10420
+#define KERNEL_VERSION_OFFSET 0x10428
#define COMMAND_LINE_OFFSET 0x10480
#ifndef __ASSEMBLY__
@@ -74,7 +75,8 @@ struct parmarea {
unsigned long initrd_size; /* 0x10410 */
unsigned long oldmem_base; /* 0x10418 */
unsigned long oldmem_size; /* 0x10420 */
- char pad1[0x10480 - 0x10428]; /* 0x10428 - 0x10480 */
+ unsigned long kernel_version; /* 0x10428 */
+ char pad1[0x10480 - 0x10430]; /* 0x10430 - 0x10480 */
char command_line[ARCH_COMMAND_LINE_SIZE]; /* 0x10480 */
};
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index b6755685c7b8..9e9f75ef046a 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -34,5 +34,6 @@
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_SYS_CLONE3
#endif /* _ASM_S390_UNISTD_H_ */
diff --git a/arch/s390/include/uapi/asm/zcrypt.h b/arch/s390/include/uapi/asm/zcrypt.h
index 494c34c50716..8c5755f41dde 100644
--- a/arch/s390/include/uapi/asm/zcrypt.h
+++ b/arch/s390/include/uapi/asm/zcrypt.h
@@ -20,6 +20,7 @@
#include <linux/ioctl.h>
#include <linux/compiler.h>
+#include <linux/types.h>
/* Name of the zcrypt device driver. */
#define ZCRYPT_NAME "zcrypt"
@@ -160,17 +161,17 @@ struct ica_xcRB {
* @payload_len: Payload length
*/
struct ep11_cprb {
- uint16_t cprb_len;
+ __u16 cprb_len;
unsigned char cprb_ver_id;
unsigned char pad_000[2];
unsigned char flags;
unsigned char func_id[2];
- uint32_t source_id;
- uint32_t target_id;
- uint32_t ret_code;
- uint32_t reserved1;
- uint32_t reserved2;
- uint32_t payload_len;
+ __u32 source_id;
+ __u32 target_id;
+ __u32 ret_code;
+ __u32 reserved1;
+ __u32 reserved2;
+ __u32 payload_len;
} __attribute__((packed));
/**
@@ -179,8 +180,8 @@ struct ep11_cprb {
* @dom_id: Usage domain id
*/
struct ep11_target_dev {
- uint16_t ap_id;
- uint16_t dom_id;
+ __u16 ap_id;
+ __u16 dom_id;
};
/**
@@ -195,14 +196,14 @@ struct ep11_target_dev {
* @resp: Addr to response block
*/
struct ep11_urb {
- uint16_t targets_num;
- uint64_t targets;
- uint64_t weight;
- uint64_t req_no;
- uint64_t req_len;
- uint64_t req;
- uint64_t resp_len;
- uint64_t resp;
+ __u16 targets_num;
+ __u64 targets;
+ __u64 weight;
+ __u64 req_no;
+ __u64 req_len;
+ __u64 req;
+ __u64 resp_len;
+ __u64 resp;
} __attribute__((packed));
/**
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index a90d3e945445..3054e9c035a3 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -437,4 +437,4 @@
432 common fsmount sys_fsmount sys_fsmount
433 common fspick sys_fspick sys_fspick
434 common pidfd_open sys_pidfd_open sys_pidfd_open
-# 435 reserved for clone3
+435 common clone3 sys_clone3 sys_clone3
diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index 99e06213a22b..54fcdf66ae96 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -17,8 +17,6 @@
#ifdef CONFIG_PGSTE
-static int page_table_allocate_pgste_min = 0;
-static int page_table_allocate_pgste_max = 1;
int page_table_allocate_pgste = 0;
EXPORT_SYMBOL(page_table_allocate_pgste);
@@ -29,8 +27,8 @@ static struct ctl_table page_table_sysctl[] = {
.maxlen = sizeof(int),
.mode = S_IRUGO | S_IWUSR,
.proc_handler = proc_dointvec_minmax,
- .extra1 = &page_table_allocate_pgste_min,
- .extra2 = &page_table_allocate_pgste_max,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE,
},
{ }
};