diff options
Diffstat (limited to 'arch/s390/include/asm')
| -rw-r--r-- | arch/s390/include/asm/alternative-asm.h | 108 | ||||
| -rw-r--r-- | arch/s390/include/asm/ccwdev.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/chpid.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/cio.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/cpu_mf.h | 4 | ||||
| -rw-r--r-- | arch/s390/include/asm/css_chars.h | 6 | ||||
| -rw-r--r-- | arch/s390/include/asm/kvm_host.h | 28 | ||||
| -rw-r--r-- | arch/s390/include/asm/kvm_para.h | 5 | ||||
| -rw-r--r-- | arch/s390/include/asm/mmu.h | 4 | ||||
| -rw-r--r-- | arch/s390/include/asm/mmu_context.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/nospec-branch.h | 6 | ||||
| -rw-r--r-- | arch/s390/include/asm/pgalloc.h | 3 | ||||
| -rw-r--r-- | arch/s390/include/asm/scsw.h | 4 | ||||
| -rw-r--r-- | arch/s390/include/asm/setup.h | 2 |
14 files changed, 156 insertions, 22 deletions
diff --git a/arch/s390/include/asm/alternative-asm.h b/arch/s390/include/asm/alternative-asm.h new file mode 100644 index 000000000000..955d620db23e --- /dev/null +++ b/arch/s390/include/asm/alternative-asm.h @@ -0,0 +1,108 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_S390_ALTERNATIVE_ASM_H +#define _ASM_S390_ALTERNATIVE_ASM_H + +#ifdef __ASSEMBLY__ + +/* + * Check the length of an instruction sequence. The length may not be larger + * than 254 bytes and it has to be divisible by 2. + */ +.macro alt_len_check start,end + .if ( \end - \start ) > 254 + .error "cpu alternatives does not support instructions blocks > 254 bytes\n" + .endif + .if ( \end - \start ) % 2 + .error "cpu alternatives instructions length is odd\n" + .endif +.endm + +/* + * Issue one struct alt_instr descriptor entry (need to put it into + * the section .altinstructions, see below). This entry contains + * enough information for the alternatives patching code to patch an + * instruction. See apply_alternatives(). + */ +.macro alt_entry orig_start, orig_end, alt_start, alt_end, feature + .long \orig_start - . + .long \alt_start - . + .word \feature + .byte \orig_end - \orig_start + .byte \alt_end - \alt_start +.endm + +/* + * Fill up @bytes with nops. The macro emits 6-byte nop instructions + * for the bulk of the area, possibly followed by a 4-byte and/or + * a 2-byte nop if the size of the area is not divisible by 6. + */ +.macro alt_pad_fill bytes + .fill ( \bytes ) / 6, 6, 0xc0040000 + .fill ( \bytes ) % 6 / 4, 4, 0x47000000 + .fill ( \bytes ) % 6 % 4 / 2, 2, 0x0700 +.endm + +/* + * Fill up @bytes with nops. If the number of bytes is larger + * than 6, emit a jg instruction to branch over all nops, then + * fill an area of size (@bytes - 6) with nop instructions. + */ +.macro alt_pad bytes + .if ( \bytes > 0 ) + .if ( \bytes > 6 ) + jg . + \bytes + alt_pad_fill \bytes - 6 + .else + alt_pad_fill \bytes + .endif + .endif +.endm + +/* + * Define an alternative between two instructions. If @feature is + * present, early code in apply_alternatives() replaces @oldinstr with + * @newinstr. ".skip" directive takes care of proper instruction padding + * in case @newinstr is longer than @oldinstr. + */ +.macro ALTERNATIVE oldinstr, newinstr, feature + .pushsection .altinstr_replacement,"ax" +770: \newinstr +771: .popsection +772: \oldinstr +773: alt_len_check 770b, 771b + alt_len_check 772b, 773b + alt_pad ( ( 771b - 770b ) - ( 773b - 772b ) ) +774: .pushsection .altinstructions,"a" + alt_entry 772b, 774b, 770b, 771b, \feature + .popsection +.endm + +/* + * Define an alternative between two instructions. If @feature is + * present, early code in apply_alternatives() replaces @oldinstr with + * @newinstr. ".skip" directive takes care of proper instruction padding + * in case @newinstr is longer than @oldinstr. + */ +.macro ALTERNATIVE_2 oldinstr, newinstr1, feature1, newinstr2, feature2 + .pushsection .altinstr_replacement,"ax" +770: \newinstr1 +771: \newinstr2 +772: .popsection +773: \oldinstr +774: alt_len_check 770b, 771b + alt_len_check 771b, 772b + alt_len_check 773b, 774b + .if ( 771b - 770b > 772b - 771b ) + alt_pad ( ( 771b - 770b ) - ( 774b - 773b ) ) + .else + alt_pad ( ( 772b - 771b ) - ( 774b - 773b ) ) + .endif +775: .pushsection .altinstructions,"a" + alt_entry 773b, 775b, 770b, 771b,\feature1 + alt_entry 773b, 775b, 771b, 772b,\feature2 + .popsection +.endm + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_S390_ALTERNATIVE_ASM_H */ diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index 633f8da86137..20bce136b2e5 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -230,5 +230,5 @@ int ccw_device_siosl(struct ccw_device *); extern void ccw_device_get_schid(struct ccw_device *, struct subchannel_id *); -struct channel_path_desc *ccw_device_get_chp_desc(struct ccw_device *, int); +struct channel_path_desc_fmt0 *ccw_device_get_chp_desc(struct ccw_device *, int); #endif /* _S390_CCWDEV_H_ */ diff --git a/arch/s390/include/asm/chpid.h b/arch/s390/include/asm/chpid.h index 4773f747915c..20e0d22f29e9 100644 --- a/arch/s390/include/asm/chpid.h +++ b/arch/s390/include/asm/chpid.h @@ -9,7 +9,7 @@ #include <uapi/asm/chpid.h> #include <asm/cio.h> -struct channel_path_desc { +struct channel_path_desc_fmt0 { u8 flags; u8 lsn; u8 desc; diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index dc84a0171bb3..847a04262b9c 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -227,7 +227,7 @@ struct esw_eadm { * a field is valid; a field not being valid is always passed as %0. * If a unit check occurred, @ecw may contain sense data; this is retrieved * by the common I/O layer itself if the device doesn't support concurrent - * sense (so that the device driver never needs to perform basic sene itself). + * sense (so that the device driver never needs to perform basic sense itself). * For unsolicited interrupts, the irb is passed as-is (expect for sense data, * if applicable). */ diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h index dd08db491b89..f58d17e9dd65 100644 --- a/arch/s390/include/asm/cpu_mf.h +++ b/arch/s390/include/asm/cpu_mf.h @@ -29,12 +29,12 @@ /* CPU measurement facility support */ static inline int cpum_cf_avail(void) { - return MACHINE_HAS_LPP && test_facility(67); + return test_facility(40) && test_facility(67); } static inline int cpum_sf_avail(void) { - return MACHINE_HAS_LPP && test_facility(68); + return test_facility(40) && test_facility(68); } diff --git a/arch/s390/include/asm/css_chars.h b/arch/s390/include/asm/css_chars.h index fb56fa3283a2..0563fd3e8458 100644 --- a/arch/s390/include/asm/css_chars.h +++ b/arch/s390/include/asm/css_chars.h @@ -32,8 +32,10 @@ struct css_general_char { u32 fcx : 1; /* bit 88 */ u32 : 19; u32 alt_ssi : 1; /* bit 108 */ - u32:1; - u32 narf:1; /* bit 110 */ + u32 : 1; + u32 narf : 1; /* bit 110 */ + u32 : 12; + u32 util_str : 1;/* bit 123 */ } __packed; extern struct css_general_char css_general_characteristics; diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index afb0f08b8021..81cdb6b55118 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -294,6 +294,7 @@ struct kvm_vcpu_stat { u64 exit_userspace; u64 exit_null; u64 exit_external_request; + u64 exit_io_request; u64 exit_external_interrupt; u64 exit_stop_request; u64 exit_validity; @@ -310,16 +311,29 @@ struct kvm_vcpu_stat { u64 exit_program_interruption; u64 exit_instr_and_program; u64 exit_operation_exception; + u64 deliver_ckc; + u64 deliver_cputm; u64 deliver_external_call; u64 deliver_emergency_signal; u64 deliver_service_signal; - u64 deliver_virtio_interrupt; + u64 deliver_virtio; u64 deliver_stop_signal; u64 deliver_prefix_signal; u64 deliver_restart_signal; - u64 deliver_program_int; - u64 deliver_io_int; + u64 deliver_program; + u64 deliver_io; + u64 deliver_machine_check; u64 exit_wait_state; + u64 inject_ckc; + u64 inject_cputm; + u64 inject_external_call; + u64 inject_emergency_signal; + u64 inject_mchk; + u64 inject_pfault_init; + u64 inject_program; + u64 inject_restart; + u64 inject_set_prefix; + u64 inject_stop_signal; u64 instruction_epsw; u64 instruction_gs; u64 instruction_io_other; @@ -644,7 +658,12 @@ struct kvm_vcpu_arch { }; struct kvm_vm_stat { - ulong remote_tlb_flush; + u64 inject_io; + u64 inject_float_mchk; + u64 inject_pfault_done; + u64 inject_service_signal; + u64 inject_virtio; + u64 remote_tlb_flush; }; struct kvm_arch_memory_slot { @@ -792,6 +811,7 @@ struct kvm_arch{ int css_support; int use_irqchip; int use_cmma; + int use_pfmfi; int user_cpu_state_ctrl; int user_sigp; int user_stsi; diff --git a/arch/s390/include/asm/kvm_para.h b/arch/s390/include/asm/kvm_para.h index 74eeec9c0a80..cbc7c3a68e4d 100644 --- a/arch/s390/include/asm/kvm_para.h +++ b/arch/s390/include/asm/kvm_para.h @@ -193,6 +193,11 @@ static inline unsigned int kvm_arch_para_features(void) return 0; } +static inline unsigned int kvm_arch_para_hints(void) +{ + return 0; +} + static inline bool kvm_check_and_clear_guest_paused(void) { return false; diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h index db35c41a59d5..c639c95850e4 100644 --- a/arch/s390/include/asm/mmu.h +++ b/arch/s390/include/asm/mmu.h @@ -22,8 +22,8 @@ typedef struct { unsigned int has_pgste:1; /* The mmu context uses storage keys. */ unsigned int use_skey:1; - /* The mmu context uses CMMA. */ - unsigned int use_cmma:1; + /* The mmu context uses CMM. */ + unsigned int uses_cmm:1; } mm_context_t; #define INIT_MM_CONTEXT(name) \ diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 6c8ce15cde7b..324f6f452982 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -31,7 +31,7 @@ static inline int init_new_context(struct task_struct *tsk, (current->mm && current->mm->context.alloc_pgste); mm->context.has_pgste = 0; mm->context.use_skey = 0; - mm->context.use_cmma = 0; + mm->context.uses_cmm = 0; #endif switch (mm->context.asce_limit) { case _REGION2_SIZE: diff --git a/arch/s390/include/asm/nospec-branch.h b/arch/s390/include/asm/nospec-branch.h index 7df48e5cf36f..35bf28fe4c64 100644 --- a/arch/s390/include/asm/nospec-branch.h +++ b/arch/s390/include/asm/nospec-branch.h @@ -6,12 +6,10 @@ #include <linux/types.h> -extern int nospec_call_disable; -extern int nospec_return_disable; +extern int nospec_disable; void nospec_init_branches(void); -void nospec_call_revert(s32 *start, s32 *end); -void nospec_return_revert(s32 *start, s32 *end); +void nospec_revert(s32 *start, s32 *end); #endif /* __ASSEMBLY__ */ diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index c7b4333d1de0..f0f9bcf94c03 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -151,4 +151,7 @@ void vmem_map_init(void); void *vmem_crst_alloc(unsigned long val); pte_t *vmem_pte_alloc(void); +unsigned long base_asce_alloc(unsigned long addr, unsigned long num_pages); +void base_asce_free(unsigned long asce); + #endif /* _S390_PGALLOC_H */ diff --git a/arch/s390/include/asm/scsw.h b/arch/s390/include/asm/scsw.h index 79b7ffa91832..c00f7b031628 100644 --- a/arch/s390/include/asm/scsw.h +++ b/arch/s390/include/asm/scsw.h @@ -390,10 +390,10 @@ static inline int scsw_cmd_is_valid_key(union scsw *scsw) } /** - * scsw_cmd_is_valid_sctl - check fctl field validity + * scsw_cmd_is_valid_sctl - check sctl field validity * @scsw: pointer to scsw * - * Return non-zero if the fctl field of the specified command mode scsw is + * Return non-zero if the sctl field of the specified command mode scsw is * valid, zero otherwise. */ static inline int scsw_cmd_is_valid_sctl(union scsw *scsw) diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index 2eb0c8a7b664..124154fdfc97 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -25,7 +25,6 @@ #define MACHINE_FLAG_DIAG44 _BITUL(6) #define MACHINE_FLAG_EDAT1 _BITUL(7) #define MACHINE_FLAG_EDAT2 _BITUL(8) -#define MACHINE_FLAG_LPP _BITUL(9) #define MACHINE_FLAG_TOPOLOGY _BITUL(10) #define MACHINE_FLAG_TE _BITUL(11) #define MACHINE_FLAG_TLB_LC _BITUL(12) @@ -66,7 +65,6 @@ extern void detect_memory_memblock(void); #define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44) #define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1) #define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2) -#define MACHINE_HAS_LPP (S390_lowcore.machine_flags & MACHINE_FLAG_LPP) #define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY) #define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE) #define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC) |