diff options
Diffstat (limited to 'arch/s390/include/asm')
| -rw-r--r-- | arch/s390/include/asm/archrandom.h | 13 | ||||
| -rw-r--r-- | arch/s390/include/asm/ccwdev.h | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/ccwgroup.h | 10 | ||||
| -rw-r--r-- | arch/s390/include/asm/compat.h | 43 | ||||
| -rw-r--r-- | arch/s390/include/asm/cpu_mf.h | 6 | ||||
| -rw-r--r-- | arch/s390/include/asm/elf.h | 4 | ||||
| -rw-r--r-- | arch/s390/include/asm/hardirq.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/kexec.h | 23 | ||||
| -rw-r--r-- | arch/s390/include/asm/nospec-insn.h | 196 | ||||
| -rw-r--r-- | arch/s390/include/asm/pci.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/pnet.h | 23 | ||||
| -rw-r--r-- | arch/s390/include/asm/purgatory.h | 23 | ||||
| -rw-r--r-- | arch/s390/include/asm/setup.h | 40 | ||||
| -rw-r--r-- | arch/s390/include/asm/thread_info.h | 3 |
14 files changed, 333 insertions, 56 deletions
diff --git a/arch/s390/include/asm/archrandom.h b/arch/s390/include/asm/archrandom.h index 09aed1095336..c67b82dfa558 100644 --- a/arch/s390/include/asm/archrandom.h +++ b/arch/s390/include/asm/archrandom.h @@ -15,16 +15,11 @@ #include <linux/static_key.h> #include <linux/atomic.h> -#include <asm/cpacf.h> DECLARE_STATIC_KEY_FALSE(s390_arch_random_available); extern atomic64_t s390_arch_random_counter; -static void s390_arch_random_generate(u8 *buf, unsigned int nbytes) -{ - cpacf_trng(NULL, 0, buf, nbytes); - atomic64_add(nbytes, &s390_arch_random_counter); -} +bool s390_arch_random_generate(u8 *buf, unsigned int nbytes); static inline bool arch_has_random(void) { @@ -51,8 +46,7 @@ static inline bool arch_get_random_int(unsigned int *v) static inline bool arch_get_random_seed_long(unsigned long *v) { if (static_branch_likely(&s390_arch_random_available)) { - s390_arch_random_generate((u8 *)v, sizeof(*v)); - return true; + return s390_arch_random_generate((u8 *)v, sizeof(*v)); } return false; } @@ -60,8 +54,7 @@ static inline bool arch_get_random_seed_long(unsigned long *v) static inline bool arch_get_random_seed_int(unsigned int *v) { if (static_branch_likely(&s390_arch_random_available)) { - s390_arch_random_generate((u8 *)v, sizeof(*v)); - return true; + return s390_arch_random_generate((u8 *)v, sizeof(*v)); } return false; } diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index 20bce136b2e5..a29dd430fb40 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -231,4 +231,5 @@ int ccw_device_siosl(struct ccw_device *); extern void ccw_device_get_schid(struct ccw_device *, struct subchannel_id *); struct channel_path_desc_fmt0 *ccw_device_get_chp_desc(struct ccw_device *, int); +u8 *ccw_device_get_util_str(struct ccw_device *cdev, int chp_idx); #endif /* _S390_CCWDEV_H_ */ diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h index 99aa817dad32..860cab7479c3 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -73,4 +73,14 @@ extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev); #define to_ccwgroupdev(x) container_of((x), struct ccwgroup_device, dev) #define to_ccwgroupdrv(x) container_of((x), struct ccwgroup_driver, driver) + +#if IS_ENABLED(CONFIG_CCWGROUP) +bool dev_is_ccwgroup(struct device *dev); +#else /* CONFIG_CCWGROUP */ +static inline bool dev_is_ccwgroup(struct device *dev) +{ + return false; +} +#endif /* CONFIG_CCWGROUP */ + #endif diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index 9830fb6b076e..97db2fba546a 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -53,7 +53,6 @@ typedef u32 compat_size_t; typedef s32 compat_ssize_t; -typedef s32 compat_time_t; typedef s32 compat_clock_t; typedef s32 compat_pid_t; typedef u16 __compat_uid_t; @@ -97,16 +96,6 @@ typedef struct { u32 gprs_high[NUM_GPRS]; } s390_compat_regs_high; -struct compat_timespec { - compat_time_t tv_sec; - s32 tv_nsec; -}; - -struct compat_timeval { - compat_time_t tv_sec; - s32 tv_usec; -}; - struct compat_stat { compat_dev_t st_dev; u16 __pad1; @@ -243,10 +232,10 @@ struct compat_ipc64_perm { struct compat_semid64_ds { struct compat_ipc64_perm sem_perm; - compat_time_t sem_otime; - compat_ulong_t __pad1; - compat_time_t sem_ctime; - compat_ulong_t __pad2; + compat_ulong_t sem_otime; + compat_ulong_t sem_otime_high; + compat_ulong_t sem_ctime; + compat_ulong_t sem_ctime_high; compat_ulong_t sem_nsems; compat_ulong_t __unused1; compat_ulong_t __unused2; @@ -254,12 +243,12 @@ struct compat_semid64_ds { struct compat_msqid64_ds { struct compat_ipc64_perm msg_perm; - compat_time_t msg_stime; - compat_ulong_t __pad1; - compat_time_t msg_rtime; - compat_ulong_t __pad2; - compat_time_t msg_ctime; - compat_ulong_t __pad3; + compat_ulong_t msg_stime; + compat_ulong_t msg_stime_high; + compat_ulong_t msg_rtime; + compat_ulong_t msg_rtime_high; + compat_ulong_t msg_ctime; + compat_ulong_t msg_ctime_high; compat_ulong_t msg_cbytes; compat_ulong_t msg_qnum; compat_ulong_t msg_qbytes; @@ -272,12 +261,12 @@ struct compat_msqid64_ds { struct compat_shmid64_ds { struct compat_ipc64_perm shm_perm; compat_size_t shm_segsz; - compat_time_t shm_atime; - compat_ulong_t __pad1; - compat_time_t shm_dtime; - compat_ulong_t __pad2; - compat_time_t shm_ctime; - compat_ulong_t __pad3; + compat_ulong_t shm_atime; + compat_ulong_t shm_atime_high; + compat_ulong_t shm_dtime; + compat_ulong_t shm_dtime_high; + compat_ulong_t shm_ctime; + compat_ulong_t shm_ctime_high; compat_pid_t shm_cpid; compat_pid_t shm_lpid; compat_ulong_t shm_nattch; diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h index f58d17e9dd65..de023a9a88ca 100644 --- a/arch/s390/include/asm/cpu_mf.h +++ b/arch/s390/include/asm/cpu_mf.h @@ -113,7 +113,7 @@ struct hws_basic_entry { struct hws_diag_entry { unsigned int def:16; /* 0-15 Data Entry Format */ - unsigned int R:14; /* 16-19 and 20-30 reserved */ + unsigned int R:15; /* 16-19 and 20-30 reserved */ unsigned int I:1; /* 31 entry valid or invalid */ u8 data[]; /* Machine-dependent sample data */ } __packed; @@ -129,7 +129,9 @@ struct hws_trailer_entry { unsigned int f:1; /* 0 - Block Full Indicator */ unsigned int a:1; /* 1 - Alert request control */ unsigned int t:1; /* 2 - Timestamp format */ - unsigned long long:61; /* 3 - 63: Reserved */ + unsigned int :29; /* 3 - 31: Reserved */ + unsigned int bsdes:16; /* 32-47: size of basic SDE */ + unsigned int dsdes:16; /* 48-63: size of diagnostic SDE */ }; unsigned long long flags; /* 0 - 63: All indicators */ }; diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index 1a61b1b997f2..7d22a474a040 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -125,8 +125,9 @@ * ELF register definitions.. */ +#include <linux/compat.h> + #include <asm/ptrace.h> -#include <asm/compat.h> #include <asm/syscall.h> #include <asm/user.h> @@ -136,7 +137,6 @@ typedef s390_regs elf_gregset_t; typedef s390_fp_regs compat_elf_fpregset_t; typedef s390_compat_regs compat_elf_gregset_t; -#include <linux/compat.h> #include <linux/sched/mm.h> /* for task_struct */ #include <asm/mmu_context.h> diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h index a296c6acfd07..dfbc3c6c0674 100644 --- a/arch/s390/include/asm/hardirq.h +++ b/arch/s390/include/asm/hardirq.h @@ -14,6 +14,8 @@ #include <asm/lowcore.h> #define local_softirq_pending() (S390_lowcore.softirq_pending) +#define set_softirq_pending(x) (S390_lowcore.softirq_pending = (x)) +#define or_softirq_pending(x) (S390_lowcore.softirq_pending |= (x)) #define __ARCH_IRQ_STAT #define __ARCH_HAS_DO_SOFTIRQ diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h index 1d708a419326..825dd0f7f221 100644 --- a/arch/s390/include/asm/kexec.h +++ b/arch/s390/include/asm/kexec.h @@ -46,4 +46,27 @@ static inline void crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs) { } +struct kimage; +struct s390_load_data { + /* Pointer to the kernel buffer. Used to register cmdline etc.. */ + void *kernel_buf; + + /* Total size of loaded segments in memory. Used as an offset. */ + size_t memsz; + + /* Load address of initrd. Used to register INITRD_START in kernel. */ + unsigned long initrd_load_addr; +}; + +int kexec_file_add_purgatory(struct kimage *image, + struct s390_load_data *data); +int kexec_file_add_initrd(struct kimage *image, + struct s390_load_data *data, + char *initrd, unsigned long initrd_len); +int *kexec_file_update_kernel(struct kimage *iamge, + struct s390_load_data *data); + +extern const struct kexec_file_ops s390_kexec_image_ops; +extern const struct kexec_file_ops s390_kexec_elf_ops; + #endif /*_S390_KEXEC_H */ diff --git a/arch/s390/include/asm/nospec-insn.h b/arch/s390/include/asm/nospec-insn.h new file mode 100644 index 000000000000..a01f81186e86 --- /dev/null +++ b/arch/s390/include/asm/nospec-insn.h @@ -0,0 +1,196 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_S390_NOSPEC_ASM_H +#define _ASM_S390_NOSPEC_ASM_H + +#include <asm/alternative-asm.h> +#include <asm/asm-offsets.h> +#include <asm/dwarf.h> + +#ifdef __ASSEMBLY__ + +#ifdef CONFIG_EXPOLINE + +_LC_BR_R1 = __LC_BR_R1 + +/* + * The expoline macros are used to create thunks in the same format + * as gcc generates them. The 'comdat' section flag makes sure that + * the various thunks are merged into a single copy. + */ + .macro __THUNK_PROLOG_NAME name + .pushsection .text.\name,"axG",@progbits,\name,comdat + .globl \name + .hidden \name + .type \name,@function +\name: + CFI_STARTPROC + .endm + + .macro __THUNK_EPILOG + CFI_ENDPROC + .popsection + .endm + + .macro __THUNK_PROLOG_BR r1,r2 + __THUNK_PROLOG_NAME __s390x_indirect_jump_r\r2\()use_r\r1 + .endm + + .macro __THUNK_PROLOG_BC d0,r1,r2 + __THUNK_PROLOG_NAME __s390x_indirect_branch_\d0\()_\r2\()use_\r1 + .endm + + .macro __THUNK_BR r1,r2 + jg __s390x_indirect_jump_r\r2\()use_r\r1 + .endm + + .macro __THUNK_BC d0,r1,r2 + jg __s390x_indirect_branch_\d0\()_\r2\()use_\r1 + .endm + + .macro __THUNK_BRASL r1,r2,r3 + brasl \r1,__s390x_indirect_jump_r\r3\()use_r\r2 + .endm + + .macro __DECODE_RR expand,reg,ruse + .set __decode_fail,1 + .irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + .ifc \reg,%r\r1 + .irp r2,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + .ifc \ruse,%r\r2 + \expand \r1,\r2 + .set __decode_fail,0 + .endif + .endr + .endif + .endr + .if __decode_fail == 1 + .error "__DECODE_RR failed" + .endif + .endm + + .macro __DECODE_RRR expand,rsave,rtarget,ruse + .set __decode_fail,1 + .irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + .ifc \rsave,%r\r1 + .irp r2,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + .ifc \rtarget,%r\r2 + .irp r3,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + .ifc \ruse,%r\r3 + \expand \r1,\r2,\r3 + .set __decode_fail,0 + .endif + .endr + .endif + .endr + .endif + .endr + .if __decode_fail == 1 + .error "__DECODE_RRR failed" + .endif + .endm + + .macro __DECODE_DRR expand,disp,reg,ruse + .set __decode_fail,1 + .irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + .ifc \reg,%r\r1 + .irp r2,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + .ifc \ruse,%r\r2 + \expand \disp,\r1,\r2 + .set __decode_fail,0 + .endif + .endr + .endif + .endr + .if __decode_fail == 1 + .error "__DECODE_DRR failed" + .endif + .endm + + .macro __THUNK_EX_BR reg,ruse + # Be very careful when adding instructions to this macro! + # The ALTERNATIVE replacement code has a .+10 which targets + # the "br \reg" after the code has been patched. +#ifdef CONFIG_HAVE_MARCH_Z10_FEATURES + exrl 0,555f + j . +#else + .ifc \reg,%r1 + ALTERNATIVE "ex %r0,_LC_BR_R1", ".insn ril,0xc60000000000,0,.+10", 35 + j . + .else + larl \ruse,555f + ex 0,0(\ruse) + j . + .endif +#endif +555: br \reg + .endm + + .macro __THUNK_EX_BC disp,reg,ruse +#ifdef CONFIG_HAVE_MARCH_Z10_FEATURES + exrl 0,556f + j . +#else + larl \ruse,556f + ex 0,0(\ruse) + j . +#endif +556: b \disp(\reg) + .endm + + .macro GEN_BR_THUNK reg,ruse=%r1 + __DECODE_RR __THUNK_PROLOG_BR,\reg,\ruse + __THUNK_EX_BR \reg,\ruse + __THUNK_EPILOG + .endm + + .macro GEN_B_THUNK disp,reg,ruse=%r1 + __DECODE_DRR __THUNK_PROLOG_BC,\disp,\reg,\ruse + __THUNK_EX_BC \disp,\reg,\ruse + __THUNK_EPILOG + .endm + + .macro BR_EX reg,ruse=%r1 +557: __DECODE_RR __THUNK_BR,\reg,\ruse + .pushsection .s390_indirect_branches,"a",@progbits + .long 557b-. + .popsection + .endm + + .macro B_EX disp,reg,ruse=%r1 +558: __DECODE_DRR __THUNK_BC,\disp,\reg,\ruse + .pushsection .s390_indirect_branches,"a",@progbits + .long 558b-. + .popsection + .endm + + .macro BASR_EX rsave,rtarget,ruse=%r1 +559: __DECODE_RRR __THUNK_BRASL,\rsave,\rtarget,\ruse + .pushsection .s390_indirect_branches,"a",@progbits + .long 559b-. + .popsection + .endm + +#else + .macro GEN_BR_THUNK reg,ruse=%r1 + .endm + + .macro GEN_B_THUNK disp,reg,ruse=%r1 + .endm + + .macro BR_EX reg,ruse=%r1 + br \reg + .endm + + .macro B_EX disp,reg,ruse=%r1 + b \disp(\reg) + .endm + + .macro BASR_EX rsave,rtarget,ruse=%r1 + basr \rsave,\rtarget + .endm +#endif + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_S390_NOSPEC_ASM_H */ diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 12fe3591034f..94f8db468c9b 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -2,8 +2,6 @@ #ifndef __ASM_S390_PCI_H #define __ASM_S390_PCI_H -/* must be set before including asm-generic/pci.h */ -#define PCI_DMA_BUS_IS_PHYS (0) /* must be set before including pci_clp.h */ #define PCI_BAR_COUNT 6 diff --git a/arch/s390/include/asm/pnet.h b/arch/s390/include/asm/pnet.h new file mode 100644 index 000000000000..6e278584f8f1 --- /dev/null +++ b/arch/s390/include/asm/pnet.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * IBM System z PNET ID Support + * + * Copyright IBM Corp. 2018 + */ + +#ifndef _ASM_S390_PNET_H +#define _ASM_S390_PNET_H + +#include <linux/device.h> +#include <linux/types.h> + +#define PNETIDS_LEN 64 /* Total utility string length in bytes + * to cover up to 4 PNETIDs of 16 bytes + * for up to 4 device ports + */ +#define MAX_PNETID_LEN 16 /* Max.length of a single port PNETID */ +#define MAX_PNETID_PORTS (PNETIDS_LEN / MAX_PNETID_LEN) + /* Max. # of ports with a PNETID */ + +int pnet_id_by_dev_port(struct device *dev, unsigned short port, u8 *pnetid); +#endif /* _ASM_S390_PNET_H */ diff --git a/arch/s390/include/asm/purgatory.h b/arch/s390/include/asm/purgatory.h new file mode 100644 index 000000000000..6090670df51f --- /dev/null +++ b/arch/s390/include/asm/purgatory.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright IBM Corp. 2018 + * + * Author(s): Philipp Rudo <prudo@linux.vnet.ibm.com> + */ + +#ifndef _S390_PURGATORY_H_ +#define _S390_PURGATORY_H_ +#ifndef __ASSEMBLY__ + +#include <linux/purgatory.h> + +int verify_sha256_digest(void); + +extern u64 kernel_entry; +extern u64 kernel_type; + +extern u64 crash_start; +extern u64 crash_size; + +#endif /* __ASSEMBLY__ */ +#endif /* _S390_PURGATORY_H_ */ diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index 124154fdfc97..9c30ebe046f3 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version - * Copyright IBM Corp. 1999, 2010 + * Copyright IBM Corp. 1999, 2017 */ #ifndef _ASM_S390_SETUP_H #define _ASM_S390_SETUP_H @@ -37,17 +37,31 @@ #define LPP_MAGIC _BITUL(31) #define LPP_PID_MASK _AC(0xffffffff, UL) +/* Offsets to entry points in kernel/head.S */ + +#define STARTUP_NORMAL_OFFSET 0x10000 +#define STARTUP_KDUMP_OFFSET 0x10010 + +/* Offsets to parameters in kernel/head.S */ + +#define IPL_DEVICE_OFFSET 0x10400 +#define INITRD_START_OFFSET 0x10408 +#define INITRD_SIZE_OFFSET 0x10410 +#define OLDMEM_BASE_OFFSET 0x10418 +#define OLDMEM_SIZE_OFFSET 0x10420 +#define COMMAND_LINE_OFFSET 0x10480 + #ifndef __ASSEMBLY__ #include <asm/lowcore.h> #include <asm/types.h> -#define IPL_DEVICE (*(unsigned long *) (0x10400)) -#define INITRD_START (*(unsigned long *) (0x10408)) -#define INITRD_SIZE (*(unsigned long *) (0x10410)) -#define OLDMEM_BASE (*(unsigned long *) (0x10418)) -#define OLDMEM_SIZE (*(unsigned long *) (0x10420)) -#define COMMAND_LINE ((char *) (0x10480)) +#define IPL_DEVICE (*(unsigned long *) (IPL_DEVICE_OFFSET)) +#define INITRD_START (*(unsigned long *) (INITRD_START_OFFSET)) +#define INITRD_SIZE (*(unsigned long *) (INITRD_SIZE_OFFSET)) +#define OLDMEM_BASE (*(unsigned long *) (OLDMEM_BASE_OFFSET)) +#define OLDMEM_SIZE (*(unsigned long *) (OLDMEM_SIZE_OFFSET)) +#define COMMAND_LINE ((char *) (COMMAND_LINE_OFFSET)) extern int memory_end_set; extern unsigned long memory_end; @@ -121,12 +135,12 @@ extern void (*_machine_power_off)(void); #else /* __ASSEMBLY__ */ -#define IPL_DEVICE 0x10400 -#define INITRD_START 0x10408 -#define INITRD_SIZE 0x10410 -#define OLDMEM_BASE 0x10418 -#define OLDMEM_SIZE 0x10420 -#define COMMAND_LINE 0x10480 +#define IPL_DEVICE (IPL_DEVICE_OFFSET) +#define INITRD_START (INITRD_START_OFFSET) +#define INITRD_SIZE (INITRD_SIZE_OFFSET) +#define OLDMEM_BASE (OLDMEM_BASE_OFFSET) +#define OLDMEM_SIZE (OLDMEM_SIZE_OFFSET) +#define COMMAND_LINE (COMMAND_LINE_OFFSET) #endif /* __ASSEMBLY__ */ #endif /* _ASM_S390_SETUP_H */ diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 83ba57533ce6..3c883c368eb0 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -45,6 +45,9 @@ struct thread_info { void arch_release_task_struct(struct task_struct *tsk); int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); +void arch_setup_new_exec(void); +#define arch_setup_new_exec arch_setup_new_exec + #endif /* |