diff options
72 files changed, 1135 insertions, 1116 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 6967addc6a89..37abe86e5bc9 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -64,6 +64,7 @@ config ARCH_SUPPORTS_UPROBES config S390 def_bool y + select ARCH_BINFMT_ELF_STATE select ARCH_HAS_DEVMEM_IS_ALLOWED select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_GCOV_PROFILE_ALL @@ -184,7 +185,7 @@ config SCHED_OMIT_FRAME_POINTER config PGTABLE_LEVELS int - default 4 + default 5 source "init/Kconfig" diff --git a/arch/s390/crypto/Makefile b/arch/s390/crypto/Makefile index 678d9863e3f0..ad4bd777768d 100644 --- a/arch/s390/crypto/Makefile +++ b/arch/s390/crypto/Makefile @@ -6,7 +6,8 @@ obj-$(CONFIG_CRYPTO_SHA1_S390) += sha1_s390.o sha_common.o obj-$(CONFIG_CRYPTO_SHA256_S390) += sha256_s390.o sha_common.o obj-$(CONFIG_CRYPTO_SHA512_S390) += sha512_s390.o sha_common.o obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o -obj-$(CONFIG_CRYPTO_AES_S390) += aes_s390.o paes_s390.o +obj-$(CONFIG_CRYPTO_AES_S390) += aes_s390.o +obj-$(CONFIG_CRYPTO_PAES_S390) += paes_s390.o obj-$(CONFIG_S390_PRNG) += prng.o obj-$(CONFIG_CRYPTO_GHASH_S390) += ghash_s390.o obj-$(CONFIG_CRYPTO_CRC32_S390) += crc32-vx_s390.o diff --git a/arch/s390/crypto/arch_random.c b/arch/s390/crypto/arch_random.c index 9317b3e645e2..36aefc07d10c 100644 --- a/arch/s390/crypto/arch_random.c +++ b/arch/s390/crypto/arch_random.c @@ -12,6 +12,7 @@ #include <linux/kernel.h> #include <linux/atomic.h> +#include <linux/random.h> #include <linux/static_key.h> #include <asm/cpacf.h> diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild index 45092b12f54f..b3c88479feba 100644 --- a/arch/s390/include/asm/Kbuild +++ b/arch/s390/include/asm/Kbuild @@ -1,10 +1,12 @@ generic-y += asm-offsets.h generic-y += cacheflush.h generic-y += clkdev.h +generic-y += device.h generic-y += dma-contiguous.h generic-y += div64.h generic-y += emergency-restart.h generic-y += export.h +generic-y += fb.h generic-y += irq_regs.h generic-y += irq_work.h generic-y += kmap_types.h diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h deleted file mode 100644 index 5203fc87f080..000000000000 --- a/arch/s390/include/asm/device.h +++ /dev/null @@ -1,10 +0,0 @@ -/* - * Arch specific extensions to struct device - * - * This file is released under the GPLv2 - */ -struct dev_archdata { -}; - -struct pdev_archdata { -}; diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index e8f623041769..ec024c08dabe 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -117,6 +117,9 @@ #define ELF_DATA ELFDATA2MSB #define ELF_ARCH EM_S390 +/* s390 specific phdr types */ +#define PT_S390_PGSTE 0x70000000 + /* * ELF register definitions.. */ @@ -151,6 +154,35 @@ extern unsigned int vdso_enabled; && (x)->e_ident[EI_CLASS] == ELF_CLASS) #define compat_start_thread start_thread31 +struct arch_elf_state { + int rc; +}; + +#define INIT_ARCH_ELF_STATE { .rc = 0 } + +#define arch_check_elf(ehdr, interp, interp_ehdr, state) (0) +#ifdef CONFIG_PGSTE +#define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \ +({ \ + struct arch_elf_state *_state = state; \ + if ((phdr)->p_type == PT_S390_PGSTE && \ + !page_table_allocate_pgste && \ + !test_thread_flag(TIF_PGSTE) && \ + !current->mm->context.alloc_pgste) { \ + set_thread_flag(TIF_PGSTE); \ + set_pt_regs_flag(task_pt_regs(current), \ + PIF_SYSCALL_RESTART); \ + _state->rc = -EAGAIN; \ + } \ + _state->rc; \ +}) +#else +#define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \ +({ \ + (state)->rc; \ +}) +#endif + /* For SVR4/S390 the function pointer to be registered with `atexit` is passed in R14. */ #define ELF_PLAT_INIT(_r, load_addr) \ diff --git a/arch/s390/include/asm/fb.h b/arch/s390/include/asm/fb.h deleted file mode 100644 index c7df38030992..000000000000 --- a/arch/s390/include/asm/fb.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef _ASM_FB_H_ -#define _ASM_FB_H_ -#include <linux/fb.h> - -#define fb_pgprotect(...) do {} while (0) - -static inline int fb_is_primary_device(struct fb_info *info) -{ - return 0; -} - -#endif /* _ASM_FB_H_ */ diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index 437e9af96688..904e4b3af95d 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -25,8 +25,6 @@ void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr); #define IO_SPACE_LIMIT 0 -#ifdef CONFIG_PCI - #define ioremap_nocache(addr, size) ioremap(addr, size) #define ioremap_wc ioremap_nocache #define ioremap_wt ioremap_nocache @@ -49,6 +47,8 @@ static inline void ioport_unmap(void __iomem *p) { } +#ifdef CONFIG_PCI + /* * s390 needs a private implementation of pci_iomap since ioremap with its * offset parameter isn't sufficient. That's because BAR spaces are not diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 65d07ac34647..6baae236f461 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -107,6 +107,20 @@ struct esca_block { struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS]; } __packed; +/* + * This struct is used to store some machine check info from lowcore + * for machine checks that happen while the guest is running. + * This info in host's lowcore might be overwritten by a second machine + * check from host when host is in the machine check's high-level handling. + * The size is 24 bytes. + */ +struct mcck_volatile_info { + __u64 mcic; + __u64 failing_storage_address; + __u32 ext_damage_code; + __u32 reserved; +}; + #define CPUSTAT_STOPPED 0x80000000 #define CPUSTAT_WAIT 0x10000000 #define CPUSTAT_ECALL_PEND 0x08000000 @@ -264,7 +278,8 @@ struct kvm_s390_itdb { struct sie_page { struct kvm_s390_sie_block sie_block; - __u8 reserved200[1024]; /* 0x0200 */ + struct mcck_volatile_info mcck_info; /* 0x0200 */ + __u8 reserved218[1000]; /* 0x0218 */ struct kvm_s390_itdb itdb; /* 0x0600 */ __u8 reserved700[2304]; /* 0x0700 */ } __packed; diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 8712e11bead4..4541ac44b35f 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -25,7 +25,9 @@ static inline int init_new_context(struct task_struct *tsk, mm->context.gmap_asce = 0; mm->context.flush_mm = 0; #ifdef CONFIG_PGSTE - mm->context.alloc_pgste = page_table_allocate_pgste; + mm->context.alloc_pgste = page_table_allocate_pgste || + test_thread_flag(TIF_PGSTE) || + current->mm->context.alloc_pgste; mm->context.has_pgste = 0; mm->context.use_skey = 0; mm->context.use_cmma = 0; diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h index e3e8895f5d3e..13623b9991d4 100644 --- a/arch/s390/include/asm/nmi.h +++ b/arch/s390/include/asm/nmi.h @@ -14,7 +14,14 @@ #include <linux/const.h> #include <linux/types.h> +#define MCIC_SUBCLASS_MASK (1ULL<<63 | 1ULL<<62 | 1ULL<<61 | \ + 1ULL<<59 | 1ULL<<58 | 1ULL<<56 | \ + 1ULL<<55 | 1ULL<<54 | 1ULL<<53 | \ + 1ULL<<52 | 1ULL<<47 | 1ULL<<46 | \ + 1ULL<<45 | 1ULL<<44) #define MCCK_CODE_SYSTEM_DAMAGE _BITUL(63) +#define MCCK_CODE_EXT_DAMAGE _BITUL(63 - 5) +#define MCCK_CODE_CP _BITUL(63 - 9) #define MCCK_CODE_CPU_TIMER_VALID _BITUL(63 - 46) #define MCCK_CODE_PSW_MWP_VALID _BITUL(63 - 20) #define MCCK_CODE_PSW_IA_VALID _BITUL(63 - 23) diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index 69b8a41fca84..624deaa44230 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -74,6 +74,7 @@ typedef struct { unsigned long pgste; } pgste_t; typedef struct { unsigned long pte; } pte_t; typedef struct { unsigned long pmd; } pmd_t; typedef struct { unsigned long pud; } pud_t; +typedef struct { unsigned long p4d; } p4d_t; typedef struct { unsigned long pgd; } pgd_t; typedef pte_t *pgtable_t; @@ -82,12 +83,14 @@ typedef pte_t *pgtable_t; #define pte_val(x) ((x).pte) #define pmd_val(x) ((x).pmd) #define pud_val(x) ((x).pud) +#define p4d_val(x) ((x).p4d) #define pgd_val(x) ((x).pgd) #define __pgste(x) ((pgste_t) { (x) } ) #define __pte(x) ((pte_t) { (x) } ) #define __pmd(x) ((pmd_t) { (x) } ) #define __pud(x) ((pud_t) { (x) } ) +#define __p4d(x) ((p4d_t) { (x) } ) #define __pgd(x) ((pgd_t) { (x) } ) #define __pgprot(x) ((pgprot_t) { (x) } ) diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 4e3186649578..f36b4b726057 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -70,11 +70,10 @@ struct zpci_fmb { } __packed __aligned(128); enum zpci_state { - ZPCI_FN_STATE_RESERVED, - ZPCI_FN_STATE_STANDBY, - ZPCI_FN_STATE_CONFIGURED, - ZPCI_FN_STATE_ONLINE, - NR_ZPCI_FN_STATES, + ZPCI_FN_STATE_STANDBY = 0, + ZPCI_FN_STATE_CONFIGURED = 1, + ZPCI_FN_STATE_RESERVED = 2, + ZPCI_FN_STATE_ONLINE = 3, }; struct zpci_bar_struct { @@ -109,7 +108,7 @@ struct zpci_dev { u64 msi_addr; /* MSI address */ unsigned int max_msi; /* maximum number of MSI's */ struct airq_iv *aibv; /* adapter interrupt bit vector */ - unsigned int aisb; /* number of the summary bit */ + unsigned long aisb; /* number of the summary bit */ /* DMA stuff */ unsigned long *dma_table; @@ -159,11 +158,12 @@ extern const struct attribute_group *zpci_attr_groups[]; ----------------------------------------------------------------------------- */ /* Base stuff */ int zpci_create_device(struct zpci_dev *); +void zpci_remove_device(struct zpci_dev *zdev); int zpci_enable_device(struct zpci_dev *); int zpci_disable_device(struct zpci_dev *); -void zpci_stop_device(struct zpci_dev *); int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64); int zpci_unregister_ioat(struct zpci_dev *, u8); +void zpci_remove_reserved_devices(void); /* CLP */ int clp_scan_pci_devices(void); @@ -172,6 +172,7 @@ int clp_rescan_pci_devices_simple(void); int clp_add_pci_device(u32, u32, int); int clp_enable_fh(struct zpci_dev *, u8); int clp_disable_fh(struct zpci_dev *); +int clp_get_state(u32 fid, enum zpci_state *state); #ifdef CONFIG_PCI /* Error handling and recovery */ diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h index 649eb62c52b3..34abcf275799 100644 --- a/arch/s390/include/asm/pci_insn.h +++ b/arch/s390/include/asm/pci_insn.h @@ -76,7 +76,7 @@ struct zpci_fib { u32 gd; } __packed __aligned(8); -int zpci_mod_fc(u64 req, struct zpci_fib *fib); +u8 zpci_mod_fc(u64 req, struct zpci_fib *fib, u8 *status); int zpci_refresh_trans(u64 fn, u64 addr, u64 range); int zpci_load(u64 *data, u64 req, u64 offset); int zpci_store(u64 data, u64 req, u64 offset); diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index 166f703dad7c..bb0ff1bb0c4a 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -51,12 +51,24 @@ static inline unsigned long pgd_entry_type(struct mm_struct *mm) return _SEGMENT_ENTRY_EMPTY; if (mm->context.asce_limit <= (1UL << 42)) return _REGION3_ENTRY_EMPTY; - return _REGION2_ENTRY_EMPTY; + if (mm->context.asce_limit <= (1UL << 53)) + return _REGION2_ENTRY_EMPTY; + return _REGION1_ENTRY_EMPTY; } -int crst_table_upgrade(struct mm_struct *); +int crst_table_upgrade(struct mm_struct *mm, unsigned long limit); void crst_table_downgrade(struct mm_struct *); +static inline p4d_t *p4d_alloc_one(struct mm_struct *mm, unsigned long address) +{ + unsigned long *table = crst_table_alloc(mm); + + if (table) + crst_table_init(table, _REGION2_ENTRY_EMPTY); + return (p4d_t *) table; +} +#define p4d_free(mm, p4d) crst_table_free(mm, (unsigned long *) p4d) + static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address) { unsigned long *table = crst_table_alloc(mm); @@ -86,9 +98,14 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) crst_table_free(mm, (unsigned long *) pmd); } -static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) +static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, p4d_t *p4d) +{ + pgd_val(*pgd) = _REGION1_ENTRY | __pa(p4d); +} + +static inline void p4d_populate(struct mm_struct *mm, p4d_t *p4d, pud_t *pud) { - pgd_val(*pgd) = _REGION2_ENTRY | __pa(pud); + p4d_val(*p4d) = _REGION2_ENTRY | __pa(pud); } static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index e6e3b887bee3..57057fb1cc07 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -24,7 +24,6 @@ * the S390 page table tree. */ #ifndef __ASSEMBLY__ -#include <asm-generic/5level-fixup.h> #include <linux/sched.h> #include <linux/mm_types.h> #include <linux/page-flags.h> @@ -87,12 +86,15 @@ extern unsigned long zero_page_mask; */ #define PMD_SHIFT 20 #define PUD_SHIFT 31 -#define PGDIR_SHIFT 42 +#define P4D_SHIFT 42 +#define PGDIR_SHIFT 53 #define PMD_SIZE (1UL << PMD_SHIFT) #define PMD_MASK (~(PMD_SIZE-1)) #define PUD_SIZE (1UL << PUD_SHIFT) #define PUD_MASK (~(PUD_SIZE-1)) +#define P4D_SIZE (1UL << P4D_SHIFT) +#define P4D_MASK (~(P4D_SIZE-1)) #define PGDIR_SIZE (1UL << PGDIR_SHIFT) #define PGDIR_MASK (~(PGDIR_SIZE-1)) @@ -105,6 +107,7 @@ extern unsigned long zero_page_mask; #define PTRS_PER_PTE 256 #define PTRS_PER_PMD 2048 #define PTRS_PER_PUD 2048 +#define PTRS_PER_P4D 2048 #define PTRS_PER_PGD 2048 #define FIRST_USER_ADDRESS 0UL @@ -115,6 +118,8 @@ extern unsigned long zero_page_mask; printk("%s:%d: bad pmd %p.\n", __FILE__, __LINE__, (void *) pmd_val(e)) #define pud_ERROR(e) \ printk("%s:%d: bad pud %p.\n", __FILE__, __LINE__, (void *) pud_val(e)) +#define p4d_ERROR(e) \ + printk("%s:%d: bad p4d %p.\n", __FILE__, __LINE__, (void *) p4d_val(e)) #define pgd_ERROR(e) \ printk("%s:%d: bad pgd %p.\n", __FILE__, __LINE__, (void *) pgd_val(e)) @@ -296,8 +301,6 @@ static inline int is_module_addr(void *addr) #define _REGION3_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INVALID) #define _REGION3_ENTRY_ORIGIN_LARGE ~0x7fffffffUL /* large page address */ -#define _REGION3_ENTRY_ORIGIN ~0x7ffUL/* region third table origin */ - #define _REGION3_ENTRY_DIRTY 0x2000 /* SW region dirty bit */ #define _REGION3_ENTRY_YOUNG 0x1000 /* SW region young bit */ #define _REGION3_ENTRY_LARGE 0x0400 /* RTTE-format control, large page */ @@ -310,8 +313,8 @@ static inline int is_module_addr(void *addr) #define _REGION3_ENTRY_SOFT_DIRTY 0x0000 /* SW region soft dirty bit */ #endif -#define _REGION_ENTRY_BITS 0xfffffffffffff227UL -#define _REGION_ENTRY_BITS_LARGE 0xffffffff8000fe27UL +#define _REGION_ENTRY_BITS 0xfffffffffffff22fUL +#define _REGION_ENTRY_BITS_LARGE 0xffffffff8000fe2fUL /* Bits in the segment table entry */ #define _SEGMENT_ENTRY_BITS 0xfffffffffffffe33UL @@ -560,18 +563,23 @@ static inline void crdte(unsigned long old, unsigned long new, } /* - * pgd/pmd/pte query functions + * pgd/p4d/pud/pmd/pte query functions */ +static inline int pgd_folded(pgd_t pgd) +{ + return (pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R1; +} + static inline int pgd_present(pgd_t pgd) { - if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2) + if (pgd_folded(pgd)) return 1; return (pgd_val(pgd) & _REGION_ENTRY_ORIGIN) != 0UL; } static inline int pgd_none(pgd_t pgd) { - if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2) + if (pgd_folded(pgd)) return 0; return (pgd_val(pgd) & _REGION_ENTRY_INVALID) != 0UL; } @@ -589,16 +597,48 @@ static inline int pgd_bad(pgd_t pgd) return (pgd_val(pgd) & mask) != 0; } +static inline int p4d_folded(p4d_t p4d) +{ + return (p4d_val(p4d) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2; +} + +static inline int p4d_present(p4d_t p4d) +{ + if (p4d_folded(p4d)) + return 1; + return (p4d_val(p4d) & _REGION_ENTRY_ORIGIN) != 0UL; +} + +static inline int p4d_none(p4d_t p4d) +{ + if (p4d_folded(p4d)) + return 0; + return p4d_val(p4d) == _REGION2_ENTRY_EMPTY; +} + +static inline unsigned long p4d_pfn(p4d_t p4d) +{ + unsigned long origin_mask; + + origin_mask = _REGION_ENTRY_ORIGIN; + return (p4d_val(p4d) & origin_mask) >> PAGE_SHIFT; +} + +static inline int pud_folded(pud_t pud) +{ + return (pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3; +} + static inline int pud_present(pud_t pud) { - if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3) + if (pud_folded(pud)) return 1; return (pud_val(pud) & _REGION_ENTRY_ORIGIN) != 0UL; } static inline int pud_none(pud_t pud) { - if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3) + if (pud_folded(pud)) return 0; return pud_val(pud) == _REGION3_ENTRY_EMPTY; } @@ -614,7 +654,7 @@ static inline unsigned long pud_pfn(pud_t pud) { unsigned long origin_mask; - origin_mask = _REGION3_ENTRY_ORIGIN; + origin_mask = _REGION_ENTRY_ORIGIN; if (pud_large(pud)) origin_mask = _REGION3_ENTRY_ORIGIN_LARGE; return (pud_val(pud) & origin_mask) >> PAGE_SHIFT; @@ -641,6 +681,13 @@ static inline int pud_bad(pud_t pud) return (pud_val(pud) & ~_REGION_ENTRY_BITS) != 0; } +static inline int p4d_bad(p4d_t p4d) +{< |