diff options
Diffstat (limited to 'arch/s390/include')
64 files changed, 1444 insertions, 655 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/ap.h b/arch/s390/include/asm/ap.h index cfce6835b109..8c00fd509c45 100644 --- a/arch/s390/include/asm/ap.h +++ b/arch/s390/include/asm/ap.h @@ -20,9 +20,9 @@ */ typedef unsigned int ap_qid_t; -#define AP_MKQID(_card, _queue) (((_card) & 63) << 8 | ((_queue) & 255)) -#define AP_QID_CARD(_qid) (((_qid) >> 8) & 63) -#define AP_QID_QUEUE(_qid) ((_qid) & 255) +#define AP_MKQID(_card, _queue) (((_card) & 0xff) << 8 | ((_queue) & 0xff)) +#define AP_QID_CARD(_qid) (((_qid) >> 8) & 0xff) +#define AP_QID_QUEUE(_qid) ((_qid) & 0xff) /** * struct ap_queue_status - Holds the AP queue status. @@ -47,6 +47,50 @@ struct ap_queue_status { }; /** + * ap_intructions_available() - Test if AP instructions are available. + * + * Returns true if the AP instructions are installed, otherwise false. + */ +static inline bool ap_instructions_available(void) +{ + register unsigned long reg0 asm ("0") = AP_MKQID(0, 0); + register unsigned long reg1 asm ("1") = 0; + register unsigned long reg2 asm ("2") = 0; + + asm volatile( + " .long 0xb2af0000\n" /* PQAP(TAPQ) */ + "0: la %0,1\n" + "1:\n" + EX_TABLE(0b, 1b) + : "+d" (reg1), "+d" (reg2) + : "d" (reg0) + : "cc"); + return reg1 != 0; +} + +/** + * ap_tapq(): Test adjunct processor queue. + * @qid: The AP queue number + * @info: Pointer to queue descriptor + * + * Returns AP queue status structure. + */ +static inline struct ap_queue_status ap_tapq(ap_qid_t qid, unsigned long *info) +{ + register unsigned long reg0 asm ("0") = qid; + register struct ap_queue_status reg1 asm ("1"); + register unsigned long reg2 asm ("2"); + + asm volatile(".long 0xb2af0000" /* PQAP(TAPQ) */ + : "=d" (reg1), "=d" (reg2) + : "d" (reg0) + : "cc"); + if (info) + *info = reg2; + return reg1; +} + +/** * ap_test_queue(): Test adjunct processor queue. * @qid: The AP queue number * @tbit: Test facilities bit @@ -54,10 +98,57 @@ struct ap_queue_status { * * Returns AP queue status structure. */ -struct ap_queue_status ap_test_queue(ap_qid_t qid, - int tbit, - unsigned long *info); +static inline struct ap_queue_status ap_test_queue(ap_qid_t qid, + int tbit, + unsigned long *info) +{ + if (tbit) + qid |= 1UL << 23; /* set T bit*/ + return ap_tapq(qid, info); +} +/** + * ap_pqap_rapq(): Reset adjunct processor queue. + * @qid: The AP queue number + * + * Returns AP queue status structure. + */ +static inline struct ap_queue_status ap_rapq(ap_qid_t qid) +{ + register unsigned long reg0 asm ("0") = qid | (1UL << 24); + register struct ap_queue_status reg1 asm ("1"); + + asm volatile( + ".long 0xb2af0000" /* PQAP(RAPQ) */ + : "=d" (reg1) + : "d" (reg0) + : "cc"); + return reg1; +} + +/** + * ap_pqap_zapq(): Reset and zeroize adjunct processor queue. + * @qid: The AP queue number + * + * Returns AP queue status structure. + */ +static inline struct ap_queue_status ap_zapq(ap_qid_t qid) +{ + register unsigned long reg0 asm ("0") = qid | (2UL << 24); + register struct ap_queue_status reg1 asm ("1"); + + asm volatile( + ".long 0xb2af0000" /* PQAP(ZAPQ) */ + : "=d" (reg1) + : "d" (reg0) + : "cc"); + return reg1; +} + +/** + * struct ap_config_info - convenience struct for AP crypto + * config info as returned by the ap_qci() function. + */ struct ap_config_info { unsigned int apsc : 1; /* S bit */ unsigned int apxa : 1; /* N bit */ @@ -74,50 +165,189 @@ struct ap_config_info { unsigned char _reserved4[16]; } __aligned(8); -/* - * ap_query_configuration(): Fetch cryptographic config info +/** + * ap_qci(): Get AP configuration data * - * Returns the ap configuration info fetched via PQAP(QCI). - * On success 0 is returned, on failure a negative errno - * is returned, e.g. if the PQAP(QCI) instruction is not - * available, the return value will be -EOPNOTSUPP. + * Returns 0 on success, or -EOPNOTSUPP. */ -int ap_query_configuration(struct ap_config_info *info); +static inline int ap_qci(struct ap_config_info *config) +{ + register unsigned long reg0 asm ("0") = 4UL << 24; + register unsigned long reg1 asm ("1") = -EOPNOTSUPP; + register struct ap_config_info *reg2 asm ("2") = config; + + asm volatile( + ".long 0xb2af0000\n" /* PQAP(QCI) */ + "0: la %0,0\n" + "1:\n" + EX_TABLE(0b, 1b) + : "+d" (reg1) + : "d" (reg0), "d" (reg2) + : "cc", "memory"); + + return reg1; +} /* * struct ap_qirq_ctrl - convenient struct for easy invocation - * of the ap_queue_irq_ctrl() function. This struct is passed - * as GR1 parameter to the PQAP(AQIC) instruction. For details - * please see the AR documentation. + * of the ap_aqic() function. This struct is passed as GR1 + * parameter to the PQAP(AQIC) instruction. For details please + * see the AR documentation. */ struct ap_qirq_ctrl { unsigned int _res1 : 8; - unsigned int zone : 8; /* zone info */ - unsigned int ir : 1; /* ir flag: enable (1) or disable (0) irq */ + unsigned int zone : 8; /* zone info */ + unsigned int ir : 1; /* ir flag: enable (1) or disable (0) irq */ unsigned int _res2 : 4; - unsigned int gisc : 3; /* guest isc field */ + unsigned int gisc : 3; /* guest isc field */ unsigned int _res3 : 6; - unsigned int gf : 2; /* gisa format */ + unsigned int gf : 2; /* gisa format */ unsigned int _res4 : 1; - unsigned int gisa : 27; /* gisa origin */ + unsigned int gisa : 27; /* gisa origin */ unsigned int _res5 : 1; - unsigned int isc : 3; /* irq sub class */ + unsigned int isc : 3; /* irq sub class */ }; /** - * ap_queue_irq_ctrl(): Control interruption on a AP queue. + * ap_aqic(): Control interruption for a specific AP. * @qid: The AP queue number - * @qirqctrl: struct ap_qirq_ctrl, see above + * @qirqctrl: struct ap_qirq_ctrl (64 bit value) * @ind: The notification indicator byte * * Returns AP queue status. + */ +static inline struct ap_queue_status ap_aqic(ap_qid_t qid, + struct ap_qirq_ctrl qirqctrl, + void *ind) +{ + register unsigned long reg0 asm ("0") = qid | (3UL << 24); + register struct ap_qirq_ctrl reg1_in asm ("1") = qirqctrl; + register struct ap_queue_status reg1_out asm ("1"); + register void *reg2 asm ("2") = ind; + + asm volatile( + ".long 0xb2af0000" /* PQAP(AQIC) */ + : "=d" (reg1_out) + : "d" (reg0), "d" (reg1_in), "d" (reg2) + : "cc"); + return reg1_out; +} + +/* + * union ap_qact_ap_info - used together with the + * ap_aqic() function to provide a convenient way + * to handle the ap info needed by the qact function. + */ +union ap_qact_ap_info { + unsigned long val; + struct { + unsigned int : 3; + unsigned int mode : 3; + unsigned int : 26; + unsigned int cat : 8; + unsigned int : 8; + unsigned char ver[2]; + }; +}; + +/** + * ap_qact(): Query AP combatibility type. + * @qid: The AP queue number + * @apinfo: On input the info about the AP queue. On output the + * alternate AP queue info provided by the qact function + * in GR2 is stored in. * - * Control interruption on the given AP queue. - * Just a simple wrapper function for the low level PQAP(AQIC) - * instruction available for other kernel modules. + * Returns AP queue status. Check response_code field for failures. */ -struct ap_queue_status ap_queue_irq_ctrl(ap_qid_t qid, - struct ap_qirq_ctrl qirqctrl, - void *ind); +static inline struct ap_queue_status ap_qact(ap_qid_t qid, int ifbit, + union ap_qact_ap_info *apinfo) +{ + register unsigned long reg0 asm ("0") = qid | (5UL << 24) + | ((ifbit & 0x01) << 22); + register unsigned long reg1_in asm ("1") = apinfo->val; + register struct ap_queue_status reg1_out asm ("1"); + register unsigned long reg2 asm ("2"); + + asm volatile( + ".long 0xb2af0000" /* PQAP(QACT) */ + : "+d" (reg1_in), "=d" (reg1_out), "=d" (reg2) + : "d" (reg0) + : "cc"); + apinfo->val = reg2; + return reg1_out; +} + +/** + * ap_nqap(): Send message to adjunct processor queue. + * @qid: The AP queue number + * @psmid: The program supplied message identifier + * @msg: The message text + * @length: The message length + * + * Returns AP queue status structure. + * Condition code 1 on NQAP can't happen because the L bit is 1. + * Condition code 2 on NQAP also means the send is incomplete, + * because a segment boundary was reached. The NQAP is repeated. + */ +static inline struct ap_queue_status ap_nqap(ap_qid_t qid, + unsigned long long psmid, + void *msg, size_t length) +{ + register unsigned long reg0 asm ("0") = qid | 0x40000000UL; + register struct ap_queue_status reg1 asm ("1"); + register unsigned long reg2 asm ("2") = (unsigned long) msg; + register unsigned long reg3 asm ("3") = (unsigned long) length; + register unsigned long reg4 asm ("4") = (unsigned int) (psmid >> 32); + register unsigned long reg5 asm ("5") = psmid & 0xffffffff; + + asm volatile ( + "0: .long 0xb2ad0042\n" /* NQAP */ + " brc 2,0b" + : "+d" (reg0), "=d" (reg1), "+d" (reg2), "+d" (reg3) + : "d" (reg4), "d" (reg5) + : "cc", "memory"); + return reg1; +} + +/** + * ap_dqap(): Receive message from adjunct processor queue. + * @qid: The AP queue number + * @psmid: Pointer to program supplied message identifier + * @msg: The message text + * @length: The message length + * + * Returns AP queue status structure. + * Condition code 1 on DQAP means the receive has taken place + * but only partially. The response is incomplete, hence the + * DQAP is repeated. + * Condition code 2 on DQAP also means the receive is incomplete, + * this time because a segment boundary was reached. Again, the + * DQAP is repeated. + * Note that gpr2 is used by the DQAP instruction to keep track of + * any 'residual' length, in case the instruction gets interrupted. + * Hence it gets zeroed before the instruction. + */ +static inline struct ap_queue_status ap_dqap(ap_qid_t qid, + unsigned long long *psmid, + void *msg, size_t length) +{ + register unsigned long reg0 asm("0") = qid | 0x80000000UL; + register struct ap_queue_status reg1 asm ("1"); + register unsigned long reg2 asm("2") = 0UL; + register unsigned long reg4 asm("4") = (unsigned long) msg; + register unsigned long reg5 asm("5") = (unsigned long) length; + register unsigned long reg6 asm("6") = 0UL; + register unsigned long reg7 asm("7") = 0UL; + + + asm volatile( + "0: .long 0xb2ae0064\n" /* DQAP */ + " brc 6,0b\n" + : "+d" (reg0), "=d" (reg1), "+d" (reg2), + "+d" (reg4), "+d" (reg5), "+d" (reg6), "+d" (reg7) + : : "cc", "memory"); + *psmid = (((unsigned long long) reg6) << 32) + reg7; + return reg1; +} #endif /* _ASM_S390_AP_H_ */ diff --git a/arch/s390/include/asm/appldata.h b/arch/s390/include/asm/appldata.h index 4afbb5938726..c5bd9f4437e5 100644 --- a/arch/s390/include/asm/appldata.h +++ b/arch/s390/include/asm/appldata.h @@ -40,26 +40,27 @@ struct appldata_product_id { u16 mod_lvl; /* modification level */ } __attribute__ ((packed)); -static inline int appldata_asm(struct appldata_product_id *id, + +static inline int appldata_asm(struct appldata_parameter_list *parm_list, + struct appldata_product_id *id, unsigned short fn, void *buffer, unsigned short length) { - struct appldata_parameter_list parm_list; int ry; if (!MACHINE_IS_VM) return -EOPNOTSUPP; - parm_list.diag = 0xdc; - parm_list.function = fn; - parm_list.parlist_length = sizeof(parm_list); - parm_list.buffer_length = length; - parm_list.product_id_addr = (unsigned long) id; - parm_list.buffer_addr = virt_to_phys(buffer); + parm_list->diag = 0xdc; + parm_list->function = fn; + parm_list->parlist_length = sizeof(*parm_list); + parm_list->buffer_length = length; + parm_list->product_id_addr = (unsigned long) id; + parm_list->buffer_addr = virt_to_phys(buffer); diag_stat_inc(DIAG_STAT_X0DC); asm volatile( " diag %1,%0,0xdc" : "=d" (ry) - : "d" (&parm_list), "m" (parm_list), "m" (*id) + : "d" (parm_list), "m" (*parm_list), "m" (*id) : "cc"); return ry; } 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/atomic.h b/arch/s390/include/asm/atomic.h index 4b55532f15c4..fd20ab5d4cf7 100644 --- a/arch/s390/include/asm/atomic.h +++ b/arch/s390/include/asm/atomic.h @@ -55,17 +55,9 @@ static inline void atomic_add(int i, atomic_t *v) __atomic_add(i, &v->counter); } -#define atomic_add_negative(_i, _v) (atomic_add_return(_i, _v) < 0) -#define atomic_inc(_v) atomic_add(1, _v) -#define atomic_inc_return(_v) atomic_add_return(1, _v) -#define atomic_inc_and_test(_v) (atomic_add_return(1, _v) == 0) #define atomic_sub(_i, _v) atomic_add(-(int)(_i), _v) #define atomic_sub_return(_i, _v) atomic_add_return(-(int)(_i), _v) #define atomic_fetch_sub(_i, _v) atomic_fetch_add(-(int)(_i), _v) -#define atomic_sub_and_test(_i, _v) (atomic_sub_return(_i, _v) == 0) -#define atomic_dec(_v) atomic_sub(1, _v) -#define atomic_dec_return(_v) atomic_sub_return(1, _v) -#define atomic_dec_and_test(_v) (atomic_sub_return(1, _v) == 0) #define ATOMIC_OPS(op) \ static inline void atomic_##op(int i, atomic_t *v) \ @@ -90,21 +82,6 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) return __atomic_cmpxchg(&v->counter, old, new); } -static inline int __atomic_add_unless(atomic_t *v, int a, int u) -{ - int c, old; - c = atomic_read(v); - for (;;) { - if (unlikely(c == u)) - break; - old = atomic_cmpxchg(v, c, c + a); - if (likely(old == c)) - break; - c = old; - } - return c; -} - #define ATOMIC64_INIT(i) { (i) } static inline long atomic64_read(const atomic64_t *v) @@ -168,50 +145,8 @@ ATOMIC64_OPS(xor) #undef ATOMIC64_OPS -static inline int atomic64_add_unless(atomic64_t *v, long i, long u) -{ - long c, old; - - c = atomic64_read(v); - for (;;) { - if (unlikely(c == u)) - break; - old = atomic64_cmpxchg(v, c, c + i); - if (likely(old == c)) - break; - c = old; - } - return c != u; -} - -static inline long atomic64_dec_if_positive(atomic64_t *v) -{ - long c, old, dec; - - c = atomic64_read(v); - for (;;) { - dec = c - 1; - if (unlikely(dec < 0)) - break; - old = atomic64_cmpxchg((v), c, dec); - if (likely(old == c)) - break; - c = old; - } - return dec; -} - -#define atomic64_add_negative(_i, _v) (atomic64_add_return(_i, _v) < 0) -#define atomic64_inc(_v) atomic64_add(1, _v) -#define atomic64_inc_return(_v) atomic64_add_return(1, _v) -#define atomic64_inc_and_test(_v) (atomic64_add_return(1, _v) == 0) #define atomic64_sub_return(_i, _v) atomic64_add_return(-(long)(_i), _v) #define atomic64_fetch_sub(_i, _v) atomic64_fetch_add(-(long)(_i), _v) #define atomic64_sub(_i, _v) atomic64_add(-(long)(_i), _v) -#define atomic64_sub_and_test(_i, _v) (atomic64_sub_return(_i, _v) == 0) -#define atomic64_dec(_v) atomic64_sub(1, _v) -#define atomic64_dec_return(_v) atomic64_sub_return(1, _v) -#define atomic64_dec_and_test(_v) (atomic64_sub_return(1, _v) == 0) -#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) #endif /* __ARCH_S390_ATOMIC__ */ diff --git a/arch/s390/include/asm/boot_data.h b/arch/s390/include/asm/boot_data.h new file mode 100644 index 000000000000..2d999ccb977a --- /dev/null +++ b/arch/s390/include/asm/boot_data.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_S390_BOOT_DATA_H + +#include <asm/setup.h> +#include <asm/ipl.h> + +extern char early_command_line[COMMAND_LINE_SIZE]; +extern struct ipl_parameter_block early_ipl_block; +extern int early_ipl_block_valid; + +#endif /* _ASM_S390_BOOT_DATA_H */ diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index 633f8da86137..a29dd430fb40 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -230,5 +230,6 @@ 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); +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..7293c139dd79 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -64,6 +64,8 @@ extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver); extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver); int ccwgroup_create_dev(struct device *root, struct ccwgroup_driver *gdrv, int num_devices, const char *buf); +struct ccwgroup_device *get_ccwgroupdev_by_busid(struct ccwgroup_driver *gdrv, + char *bus_id); extern int ccwgroup_set_online(struct ccwgroup_device *gdev); extern int ccwgroup_set_offline(struct ccwgroup_device *gdev); @@ -73,4 +75,14 @@ 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/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..225667652069 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). */ @@ -328,16 +328,6 @@ static inline u8 pathmask_to_pos(u8 mask) void channel_subsystem_reinit(void); extern void css_schedule_reprobe(void); -extern void reipl_ccw_dev(struct ccw_dev_id *id); - -struct cio_iplinfo { - u8 ssid; - u16 devno; - int is_qdio; -}; - -extern int cio_get_iplinfo(struct cio_iplinfo *iplinfo); - /* Function from drivers/s390/cio/chsc.c */ int chsc_sstpc(void *page, unsigned int op, u16 ctrl, u64 *clock_delta); int chsc_sstpi(void *page, void *result, size_t size); diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index 9830fb6b076e..63b46e30b2c3 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -9,6 +9,8 @@ #include <linux/sched/task_stack.h> #include <linux/thread_info.h> +#include <asm-generic/compat.h> + #define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p( \ typeof(0?(__force t)0:0ULL), u64)) @@ -51,35 +53,18 @@ #define COMPAT_USER_HZ 100 #define COMPAT_UTS_MACHINE "s390\0\0\0\0" -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; typedef u16 __compat_gid_t; typedef u32 __compat_uid32_t; typedef u32 __compat_gid32_t; typedef u16 compat_mode_t; -typedef u32 compat_ino_t; typedef u16 compat_dev_t; -typedef s32 compat_off_t; -typedef s64 compat_loff_t; typedef u16 compat_nlink_t; typedef u16 compat_ipc_pid_t; -typedef s32 compat_daddr_t; typedef u32 compat_caddr_t; typedef __kernel_fsid_t compat_fsid_t; -typedef s32 compat_key_t; -typedef s32 compat_timer_t; - -typedef s32 compat_int_t; -typedef s32 compat_long_t; typedef s64 compat_s64; -typedef u32 compat_uint_t; -typedef u32 compat_ulong_t; typedef u64 compat_u64; -typedef u32 compat_uptr_t; typedef struct { u32 mask; @@ -97,16 +82,6 @@ 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 +218,10 @@ 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 +229,12 @@ 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 +247,12 @@ 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 dd08db491b89..bf2cbff926ef 100644 --- a/arch/s390/include/asm/cpu_mf.h +++ b/arch/s390/include/asm/cpu_mf.h @@ -2,7 +2,7 @@ /* * CPU-measurement facilities * - * Copyright IBM Corp. 2012 + * Copyright IBM Corp. 2012, 2018 * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> * Jan Glauber <jang@linux.vnet.ibm.com> */ @@ -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); } @@ -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 */ }; @@ -137,8 +139,14 @@ struct hws_trailer_entry { unsigned char timestamp[16]; /* 16 - 31 timestamp */ unsigned long long reserved1; /* 32 -Reserved */ unsigned long long reserved2; /* */ - unsigned long long progusage1; /* 48 - reserved for programming use */ - unsigned long long progusage2; /* */ + union { /* 48 - reserved for programming use */ + struct { + unsigned int clock_base:1; /* in progusage2 */ + unsigned long long progusage1:63; + unsigned long long progusage2; + }; + unsigned long long progusage[2]; + }; } __packed; /* Load program parameter */ diff --git a/arch/s390/include/asm/css_chars.h b/arch/s390/include/asm/css_chars.h index fb56fa3283a2..480bb02ccacd 100644 --- a/arch/s390/include/asm/css_chars.h +++ b/arch/s390/include/asm/css_chars.h @@ -6,34 +6,38 @@ struct css_general_char { u64 : 12; - u32 dynio : 1; /* bit 12 */ - u32 : 4; - u32 eadm : 1; /* bit 17 */ - u32 : 23; - u32 aif : 1; /* bit 41 */ - u32 : 3; - u32 mcss : 1; /* bit 45 */ - u32 fcs : 1; /* bit 46 */ - u32 : 1; - u32 ext_mb : 1; /* bit 48 */ - u32 : 7; - u32 aif_tdd : 1; /* bit 56 */ - u32 : 1; - u32 qebsm : 1; /* bit 58 */ - u32 : 2; - u32 aiv : 1; /* bit 61 */ - u32 : 5; - u32 aif_osa : 1; /* bit 67 */ - u32 : 12; - u32 eadm_rf : 1; /* bit 80 */ - u32 : 1; - u32 cib : 1; /* bit 82 */ - u32 : 5; - u32 fcx : 1; /* bit 88 */ - u32 : 19; - u32 alt_ssi : 1; /* bit 108 */ - u32:1; - u32 narf:1; /* bit 110 */ + u64 dynio : 1; /* bit 12 */ + u64 : 4; + u64 eadm : 1; /* bit 17 */ + u64 : 23; + u64 aif : 1; /* bit 41 */ + u64 : 3; + u64 mcss : 1; /* bit 45 */ + u64 fcs : 1; /* bit 46 */ + u64 : 1; + u64 ext_mb : 1; /* bit 48 */ + u64 : 7; + u64 aif_tdd : 1; /* bit 56 */ + u64 : 1; + u64 qebsm : 1; /* bit 58 */ + u64 : 2; + u64 aiv : 1; /* bit 61 */ + u64 : 2; + + u64 : 3; + u64 aif_osa : 1; /* bit 67 */ + u64 : 12; + u64 eadm_rf : 1; /* bit 80 */ + u64 : 1; + u64 cib : 1; /* bit 82 */ + u64 : 5; + u64 fcx : 1; /* bit 88 */ + u64 : 19; + u64 alt_ssi : 1; /* bit 108 */ + u64 : 1; + u64 narf : 1; /* bit 110 */ + u64 : 12; + u64 util_str : 1;/* bit 123 */ } __packed; extern struct css_general_char css_general_characteristics; diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h index 99c93d0346f9..4600453536c2 100644 --- a/arch/s390/include/asm/ctl_reg.h +++ b/arch/s390/include/asm/ctl_reg.h @@ -10,8 +10,20 @@ #include <linux/const.h> +#define CR0_CLOCK_COMPARATOR_SIGN _BITUL(63 - 10) +#define CR0_EMERGENCY_SIGNAL_SUBMASK _BITUL(63 - 49) +#define CR0_EXTERNAL_CALL_SUBMASK _BITUL(63 - 50) +#define CR0_CLOCK_COMPARATOR_SUBMASK _BITUL(63 - 52) +#define CR0_CPU_TIMER_SUBMASK _BITUL(63 - 53) +#define CR0_SERVICE_SIGNAL_SUBMASK _BITUL(63 - 54) +#define CR0_UNUSED_56 _BITUL(63 - 56) +#define CR0_INTERRUPT_KEY_SUBMASK _BITUL(63 - 57) +#define CR0_MEASUREMENT_ALERT_SUBMASK _BITUL(63 - 58) + #define CR2_GUARDED_STORAGE _BITUL(63 - 59) +#define CR14_UNUSED_32 _BITUL(63 - 32) +#define CR14_UNUSED_33 _BITUL(63 - 33) #define CR14_CHANNEL_REPORT_SUBMASK _BITUL(63 - 35) #define CR14_RECOVERY_SUBMASK _BITUL(63 - 36) #define CR14_DEGRADATION_SUBMASK _BITUL(63 - 37) 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/facility.h b/arch/s390/include/asm/facility.h index 99c8ce30b3cd..e78cda94456b 100644 --- a/arch/s390/include/asm/facility.h +++ b/arch/s390/include/asm/facility.h @@ -64,11 +64,10 @@ static inline int test_facility(unsigned long nr) * @stfle_fac_list: array where facility list can be stored * @size: size of passed in array in double words */ -static inline void stfle(u64 *stfle_fac_list, int size) +static inline void __stfle(u64 *stfle_fac_list, int size) { unsigned long nr; - preempt_disable(); asm volatile( " stfl 0(0)\n" : "=m" (S390_lowcore.stfl_fac_list)); @@ -85,6 +84,12 @@ static inline void stfle(u64 *stfle_fac_list, int size) nr = (reg0 + 1) * 8; /* # bytes stored by stfle */ } memset((char *) stfle_fac_list + nr, 0, size * 8 - nr); +} + +static inline void stfle(u64 *stfle_fac_list, int size) +{ + preempt_disable(); + __stfle(stfle_fac_list, size); preempt_enable(); } diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h index cfccc0edd00d..8ea270fdc7fb 100644 --- a/arch/s390/include/asm/ftrace.h +++ b/arch/s390/include/asm/ftrace.h @@ -4,7 +4,7 @@ #define ARCH_SUPPORTS_FTRACE_OPS 1 -#ifdef CC_USING_HOTPATCH +#if defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT) #define MCOUNT_INSN_SIZE 6 #else #define MCOUNT_INSN_SIZE 24 @@ -42,7 +42,7 @@ struct ftrace_insn { static inline void ftrace_generate_nop_insn(struct ftrace_insn *insn) { #ifdef CONFIG_FUNCTION_TRACER -#ifdef CC_USING_HOTPATCH +#if defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT) /* brcl 0,0 */ insn->opc = 0xc004; insn->disp = 0; @@ -57,7 +57,7 @@ static inline void ftrace_generate_nop_insn(struct ftrace_insn *insn) static inline int is_ftrace_nop(struct ftrace_insn *insn) { #ifdef CONFIG_FUNCTION_TRACER -#ifdef CC_USING_HOTPATCH +#if defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT) if (insn->disp == 0) return 1; #else diff --git a/arch/s390/include/asm/gmap.h b/arch/s390/include/asm/gmap.h index e07cce88dfb0..fcbd638fb9f4 100644 --- a/arch/s390/include/asm/gmap.h +++ b/arch/s390/include/asm/gmap.h @@ -9,6 +9,14 @@ #ifndef _ASM_S390_GMAP_H #define _ASM_S390_GMAP_H +/* Generic bits for GMAP notification on DAT table entry changes. */ +#define GMAP_NOTIFY_SHADOW 0x2 +#define GMAP_NOTIFY_MPROT 0x1 + +/* Status bits only for huge segment entries */ +#define _SEGMENT_ENTRY_GMAP_IN 0x8000 /* invalidation notify bit */ +#define _SEGMENT_ENTRY_GMAP_UC 0x4000 /* dirty (migration) */ + /** * struct gmap_struct - guest address space * @list: list head for the mm->context gmap list @@ -132,4 +140,6 @@ void gmap_pte_notify(struct mm_struct *, unsigned long addr, pte_t *, int gmap_mprotect_notify(struct gmap *, unsigned long start, unsigned long len, int prot); +void gmap_sync_dirty_log_pmd(struct gmap *gmap, unsigned long dirty_bitmap[4], + unsigned long gaddr, unsigned long vmaddr); #endif /* _ASM_S390_GMAP_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/hugetlb.h b/arch/s390/include/asm/hugetlb.h index 9c5fc50204dd..2d1afa58a4b6 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -37,7 +37,10 @@ static inline int prepare_hugepage_range(struct file *file, return 0; } -#define arch_clear_hugepage_flags(page) do { } while (0) +static inline void arch_clear_hugepage_flags(struct page *page) +{ + clear_bit(PG_arch_1, &page->flags); +} static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep, unsigned long sz) diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h index 186c7b5f5511..a8389e2d2f03 100644 --- a/arch/s390/include/asm/ipl.h +++ b/arch/s390/include/asm/ipl.h @@ -15,8 +15,6 @@ #define NSS_NAME_SIZE 8 -#define IPL_PARMBLOCK_ORIGIN 0x2000 - #define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \ sizeof(struct ipl_block_fcp)) @@ -29,10 +27,6 @@ #define IPL_MAX_SUPPORTED_VERSION (0) -#define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \ - IPL_PARMBLOCK_ORIGIN) -#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len) - struct ipl_list_hdr { u32 len; u8 reserved1[3]; @@ -83,32 +77,20 @@ struct ipl_parameter_block { union { struct ipl_block_fcp fcp; struct ipl_block_ccw ccw; + char raw[PAGE_SIZE - sizeof(struct ipl_list_hdr)]; } ipl_info; } __packed __aligned(PAGE_SIZE); -/* - * IPL validity flags - */ -extern u32 ipl_flags; - struct save_area; struct save_area * __init save_area_alloc(bool is_boot_cpu); struct save_area * __init save_area_boot_cpu(void); void __init save_area_add_regs(struct save_area *, void *regs); void __init save_area_add_vxrs(struct save_area *, __vector128 *vxrs); -extern void do_reipl(void); -extern void do_halt(void); -extern void do_poff(void); -extern void ipl_verify_parameters(void); -extern void ipl_update_parameters(void); -extern size_t append_ipl_vmparm(char *, size_t); -extern size_t append_ipl_scpdata(char *, size_t); - -enum { - IPL_DEVNO_VALID = 1, - IPL_PARMBLOCK_VALID = 2, -}; +extern void s390_reset_system(void); +extern void ipl_store_parameters(void); +extern size_t ipl_block_get_ascii_vmparm(char *dest, size_t size, + const struct ipl_parameter_block *ipb); enum ipl_type { IPL_TYPE_UNKNOWN = 1, @@ -138,6 +120,7 @@ struct ipl_info extern struct ipl_info ipl_info; extern void setup_ipl(void); +extern void set_os_info_reipl_block(void); /* * DIAG 308 support diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h index 40f651292aa7..e2d3e6c43395 100644 --- a/arch/s390/include/asm/jump_label.h +++ b/arch/s390/include/asm/jump_label.h @@ -14,41 +14,33 @@ * We use a brcl 0,2 instruction for jump labels at compile time so it * can be easily distinguished from a hotpatch generated instruction. */ -static __always_inline bool arch_static_branch(struct static_key *key, bool branch) +static inline bool arch_static_branch(struct static_key *key, bool branch) { - asm_volatile_goto("0: brcl 0,"__stringify(JUMP_LABEL_NOP_OFFSET)"\n" - ".pushsection __jump_table, \"aw\"\n" - ".balign 8\n" - ".quad 0b, %l[label], %0\n" - ".popsection\n" - : : "X" (&((char *)key)[branch]) : : label); - + asm_volatile_goto("0: brcl 0,"__stringify(JUMP_LABEL_NOP_OFFSET)"\n" + ".pushsection __jump_table,\"aw\"\n" + ".balign 8\n" + ".long 0b-.,%l[label]-.\n" + ".quad %0-.\n" + ".popsection\n" + : : "X" (&((char *)key)[branch]) : : label); return false; label: return true; } -static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch) +static inline bool arch_static_branch_jump(struct static_key *key, bool branch) { - asm_volatile_goto("0: brcl 15, %l[label]\n" - ".pushsection __jump_table, \"aw\"\n" - ".balign 8\n" - ".quad 0b, %l[label], %0\n" - ".popsection\n" - : : "X" (&((char *)key)[branch]) : : label); - + asm_volatile_goto("0: brcl 15,%l[label]\n" + ".pushsection __jump_table,\"aw\"\n" + ".balign 8\n" + ".long 0b-.,%l[label]-.\n" + ".quad %0-.\n" + ".popsection\n" + : : "X" (&((char *)key)[branch]) : : label); return false; label: return true; } -typedef unsigned long jump_label_t; - -struct jump_entry { - jump_label_t code; - jump_label_t target; - jump_label_t key; -}; - #endif /* __ASSEMBLY__ */ #endif diff --git a/arch/s390/include/asm/kasan.h b/arch/s390/include/asm/kasan.h new file mode 100644 index 000000000000..70930fe5c496 --- /dev/null +++ b/arch/s390/include/asm/kasan.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_KASAN_H +#define __ASM_KASAN_H + +#include <asm/pgtable.h> + +#ifdef CONFIG_KASAN + +#define KASAN_SHADOW_SCALE_SHIFT 3 +#ifdef CONFIG_KASAN_S390_4_LEVEL_PAGING +#define KASAN_SHADOW_SIZE \ + (_AC(1, UL) << (_REGION1_SHIFT - KASAN_SHADOW_SCALE_SHIFT)) +#else +#define KASAN_SHADOW_SIZE \ + (_AC(1, UL) << (_REGION2_SHIFT - KASAN_SHADOW_SCALE_SHIFT)) +#endif +#define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL) +#define KASAN_SHADOW_START KASAN_SHADOW_OFFSET +#define KASAN_SHADOW_END (KASAN_SHADOW_START + KASAN_SHADOW_SIZE) + +extern void kasan_early_init(void); +extern void kasan_copy_shadow(pgd_t *dst); +extern void kasan_free_early_identity(void); +#else +static inline void kasan_early_init(void) { } +static inline void kasan_copy_shadow(pgd_t *dst) { } +static inline void kasan_free_early_identity(void) { } +#endif + +#endif 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/kprobes.h b/arch/s390/include/asm/kprobes.h index 13de80cf741c..b106aa29bf55 100644 --- a/arch/s390/include/asm/kprobes.h +++ b/arch/s390/include/asm/kprobes.h @@ -68,8 +68,6 @@ struct kprobe_ctlblk { unsigned long kprobe_saved_imask; unsigned long kprobe_saved_ctl[3]; struct prev_kprobe prev_kprobe; - struct pt_regs jprobe_saved_regs; - kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; }; void arch_remove_kprobe(struct kprobe *p); diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index afb0f08b8021..d5d24889c3bc 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -44,6 +44,7 @@ #define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2) #define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3) #define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4) +#define KVM_REQ_VSIE_RESTART KVM_ARCH_REQ(5) #define SIGP_CTRL_C 0x80 #define SIGP_CTRL_SCN_MASK 0x3f @@ -186,6 +187,7 @@ struct kvm_s390_sie_block { #define ECA_AIV 0x00200000 #define ECA_VX 0x00020000 #define ECA_PROTEXCI 0x00002000 +#define ECA_APIE 0x00000008 #define ECA_SII 0x00000001 __u32 eca; /* 0x004c */ #define ICPT_INST 0x04 @@ -237,7 +239,11 @@ struct kvm_s390_sie_block { psw_t gpsw; /* 0x0090 */ __u64 gg14; /* 0x00a0 */ __u64 gg15; /* 0x00a8 */ - __u8 reservedb0[20]; /* 0x00b0 */ + __u8 reservedb0[8]; /* 0x00b0 */ +#define HPID_KVM 0x4 +#define HPID_VSIE 0x5 + __u8 hpid; /* 0x00b8 */ + __u8 reservedb9[11]; /* 0x00b9 */ __u16 extcpuaddr; /* 0x00c4 */ __u16 eic; /* 0x00c6 */ __u32 reservedc8; /* 0x00c8 */ @@ -255,6 +261,8 @@ struct kvm_s390_sie_block { __u8 reservede4[4]; /* 0x00e4 */ __u64 tecmc; /* 0x00e8 */ __u8 reservedf0[12]; /* 0x00f0 */ +#define CRYCB_FORMAT_MASK 0x00000003 +#define CRYCB_FORMAT0 0x00000000 #define CRYCB_FORMAT1 0x00000001 #define CRYCB_FORMAT2 0x00000003 __u32 crycbd; /* 0x00fc */ @@ -269,6 +277,7 @@ struct kvm_s390_sie_block { __u8 reserved1c0[8]; /* 0x01c0 */ #define ECD_HOSTREGMGMT 0x20000000 #define ECD_MEF 0x08000000 +#define ECD_ETOKENF 0x02000000 __u32 ecd; /* 0x01c8 */ __u8 reserved1cc[18]; /* 0x01cc */ __u64 pp; /* 0x01de */ @@ -294,6 +303,7 @@ 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 +320,29 @@ 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; @@ -641,10 +664,16 @@ struct kvm_vcpu_arch { seqcount_t cputm_seqcount; __u64 cputm_start; bool gs_enabled; + bool skey_enabled; }; 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 { @@ -694,6 +723,7 @@ struct kvm_s390_crypto { __u32 crycbd; __u8 aes_kw; __u8 dea_kw; + __u8 apie; }; #define APCB0_MASK_SIZE 1 @@ -774,12 +804,6 @@ struct kvm_s390_vsie { struct page *pages[KVM_MAX_VCPUS]; }; -struct kvm_s390_migration_state { - unsigned long bitmap_size; /* in bits (number of guest pages) */ - atomic64_t dirty_pages; /* number of dirty pages */ - unsigned long *pgste_bitmap; -}; - struct kvm_arch{ void *sca; int use_esca; @@ -792,6 +816,8 @@ struct kvm_arch{ int css_support; int use_irqchip; int use_cmma; + int use_pfmfi; + int use_skf; int user_cpu_state_ctrl; int user_sigp; int user_stsi; @@ -807,7 +833,8 @@ struct kvm_arch{ struct kvm_s390_vsie vsie; u8 epdx; u64 epoch; - struct kvm_s390_migration_state *migration_state; + int migration_mode; + atomic64_t cmma_dirty_pages; /* subset of available cpu features enabled by user space */ DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS); struct kvm_s390_gisa *gisa; @@ -837,6 +864,10 @@ void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, struct kvm_async_pf *work); +void kvm_arch_crypto_clear_masks(struct kvm *kvm); +void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm, + unsigned long *aqm, unsigned long *adm); + extern int sie64a(struct kvm_s390_sie_block *, u64 *); extern char sie_exit; 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/lowcore.h b/arch/s390/include/asm/lowcore.h index 5bc888841eaf..cc0947e08b6f 100644 --- a/arch/s390/include/asm/lowcore.h +++ b/arch/s390/include/asm/lowcore.h @@ -102,9 +102,9 @@ struct lowcore { __u64 current_task; /* 0x0338 */ __u64 kernel_stack; /* 0x0340 */ - /* Interrupt, panic and restart stack. */ + /* Interrupt, DAT-off and restartstack. */ __u64 async_stack; /* 0x0348 */ - __u64 panic_stack; /* 0x0350 */ + __u64 nodat_stack; /* 0x0350 */ __u64 restart_stack; /* 0x0358 */ /* Restart function and parameter. */ @@ -185,7 +185,7 @@ struct lowcore { /* Transaction abort diagnostic block */ __u8 pgm_tdb[256]; /* 0x1800 */ __u8 pad_0x1900[0x2000-0x1900]; /* 0x1900 */ -} __packed; +} __packed __aligned(8192); #define S390_lowcore (*((struct lowcore *) 0)) diff --git a/arch/s390/include/asm/mem_detect.h b/arch/s390/include/asm/mem_detect.h new file mode 100644 index 000000000000..6114b92ab667 --- /dev/null +++ b/arch/s390/include/asm/mem_detect.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_S390_MEM_DETECT_H +#define _ASM_S390_MEM_DETECT_H + +#include <linux/types.h> + +enum mem_info_source { + MEM_DETECT_NONE = 0, + MEM_DETECT_SCLP_STOR_INFO, + MEM_DETECT_DIAG260, + MEM_DETECT_SCLP_READ_INFO, + MEM_DETECT_BIN_SEARCH +}; + +struct mem_detect_block { + u64 start; + u64 end; +}; + +/* + * Storage element id is defined as 1 byte (up to 256 storage elements). + * In practise only storage element id 0 and 1 are used). + * According to architecture one storage element could have as much as + * 1020 subincrements. 255 mem_detect_blocks are embedded in mem_detect_info. + * If more mem_detect_blocks are required, a block of memory from already + * known mem_detect_block is taken (entries_extended points to it). + */ +#define MEM_INLINED_ENTRIES 255 /* (PAGE_SIZE - 16) / 16 */ + +struct mem_detect_info { + u32 count; + u8 info_source; + struct mem_detect_block entries[MEM_INLINED_ENTRIES]; + struct mem_detect_block *entries_extended; +}; +extern struct mem_detect_info mem_detect; + +void add_mem_detect_block(u64 start, u64 end); + +static inline int __get_mem_detect_block(u32 n, unsigned long *start, + unsigned long *end) +{ + if (n >= mem_detect.count) { + *start = 0; + *end = 0; + return -1; + } + + if (n < MEM_INLINED_ENTRIES) { + *start = (unsigned long)mem_detect.entries[n].start; + *end = (unsigned long)mem_detect.entries[n].end; + } else { + *start = (unsigned long)mem_detect.entries_extended[n - MEM_INLINED_ENTRIES].start; + *end = (unsigned long)mem_detect.entries_extended[n - MEM_INLINED_ENTRIES].end; + } + return 0; +} + +/** + * for_each_mem_detect_block - early online memory range iterator + * @i: an integer used as loop variable + * @p_start: ptr to unsigned long for start address of the range + * @p_end: ptr to unsigned long for end address of the range + * + * Walks over detected online memory ranges. + */ +#define for_each_mem_detect_block(i, p_start, p_end) \ + for (i = 0, __get_mem_detect_block(i, p_start, p_end); \ + i < mem_detect.count; \ + i++, __get_mem_detect_block(i, p_start, p_end)) + +static inline void get_mem_detect_reserved(unsigned long *start, + unsigned long *size) +{ + *start = (unsigned long)mem_detect.entries_extended; + if (mem_detect.count > MEM_INLINED_ENTRIES) + *size = (mem_detect.count - MEM_INLINED_ENTRIES) * sizeof(struct mem_detect_block); + else + *size = 0; +} + +#endif diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h index db35c41a59d5..bcfb6371086f 100644 --- a/arch/s390/include/asm/mmu.h +++ b/arch/s390/include/asm/mmu.h @@ -16,14 +16,24 @@ typedef struct { unsigned long asce; unsigned long asce_limit; unsigned long vdso_base; - /* The mmu context allocates 4K page tables. */ + /* + * The following bitfields need a down_write on the mm + * semaphore when they are written to. As they are only + * written once, they can be read without a lock. + * + * The mmu context allocates 4K page tables. + */ unsigned int alloc_pgste:1; /* The mmu context uses extended page tables. */ 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; + unsigned int uses_skeys:1; + /* The mmu context uses CMM. */ + unsigned int uses_cmm:1; + /* The gmaps associated with this context are allowed to use huge pages. */ + unsigned int allow_gmap_hpage_1m:1; + /* The mmu context is for compat task */ + unsigned int compat_mm: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..ccbb53e22024 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -25,13 +25,15 @@ static inline int init_new_context(struct task_struct *tsk, atomic_set(&mm->context.flush_count, 0); mm->context.gmap_asce = 0; mm->context.flush_mm = 0; + mm->context.compat_mm = 0; #ifdef CONFIG_PGSTE mm->context.alloc_pgste = page_table_allocate_pgste || test_thread_flag(TIF_PGSTE) || (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_skeys = 0; + mm->context.uses_cmm = 0; + mm->context.allow_gmap_hpage_1m = 0; #endif switch (mm->context.asce_limit) { case _REGION2_SIZE: @@ -44,8 +46,6 @@ static inline int init_new_context(struct task_struct *tsk, mm->context.asce_limit = STACK_TOP_MAX; mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | _ASCE_USER_BITS | _ASCE_TYPE_REGION3; - /* pgd_alloc() did not account this pud */ - mm_inc_nr_puds(mm); break; case -PAGE_SIZE: /* forked 5-level task, set new asce with new_mm->pgd */ @@ -61,9 +61,6 @@ static inline int init_new_context(struct task_struct *tsk, /* forked 2-level compat task, set new asce with new mm->pgd */ mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | _ASCE_USER_BITS | _ASCE_TYPE_SEGMENT; - /* pgd_alloc() did not account this pmd */ - mm_inc_nr_pmds(mm); - mm_inc_nr_puds(mm); } crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm)); return 0; diff --git a/arch/s390/include/asm/nospec-branch.h b/arch/s390/include/asm/nospec-branch.h index 7df48e5cf36f..b4bd8c41e9d3 100644 --- a/arch/s390/include/asm/nospec-branch.h +++ b/arch/s390/include/asm/nospec-branch.h @@ -6,12 +6,11 @@ #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_auto_detect(void); +void nospec_revert(s32 *start, s32 *end); #endif /* __ASSEMBLY__ */ diff --git a/arch/s390/include/asm/nospec-insn.h b/arch/s390/include/asm/nospec-insn.h new file mode 100644 index 000000000000..123dac3717b3 --- /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 CC_USING_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 /* CC_USING_EXPOLINE */ + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_S390_NOSPEC_ASM_H */ diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index 41e3908b397f..a4d38092530a 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -161,6 +161,7 @@ static inline int devmem_is_allowed(unsigned long pfn) #define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) +#define pfn_to_kaddr(pfn) pfn_to_virt(pfn) #define virt_to_page(kaddr) pfn_to_page(virt_to_pfn(kaddr)) #define page_to_virt(page) pfn_to_virt(page_to_pfn(page)) diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 12fe3591034f..10fe982f2b4b 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 @@ -53,6 +51,10 @@ struct zpci_fmb_fmt2 { u64 max_work_units; }; +struct zpci_fmb_fmt3 { + u64 tx_bytes; +}; + struct zpci_fmb { u32 format : 8; u32 fmt_ind : 24; @@ -68,6 +70,7 @@ struct zpci_fmb { struct zpci_fmb_fmt0 fmt0; struct zpci_fmb_fmt1 fmt1; struct zpci_fmb_fmt2 fmt2; + struct zpci_fmb_fmt3 fmt3; }; } __packed __aligned(128); diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index c7b4333d1de0..5ee733720a57 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -36,11 +36,11 @@ static inline void crst_table_init(unsigned long *crst, unsigned long entry) static inline unsigned long pgd_entry_type(struct mm_struct *mm) { - if (mm->context.asce_limit <= _REGION3_SIZE) + if (mm_pmd_folded(mm)) return _SEGMENT_ENTRY_EMPTY; - if (mm->context.asce_limit <= _REGION2_SIZE) + if (mm_pud_folded(mm)) return _REGION3_ENTRY_EMPTY; - if (mm->context.asce_limit <= _REGION1_SIZE) + if (mm_p4d_folded(mm)) return _REGION2_ENTRY_EMPTY; return _REGION1_ENTRY_EMPTY; } @@ -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/pgtable.h b/arch/s390/include/asm/pgtable.h index 2d24d33bf188..063732414dfb 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -171,7 +171,6 @@ static inline int is_module_addr(void *addr) #define _PAGE_WRITE 0x020 /* SW pte write bit */ #define _PAGE_SPECIAL 0x040 /* SW associated with special page */ #define _PAGE_UNUSED 0x080 /* SW bit for pgste usage state */ -#define __HAVE_ARCH_PTE_SPECIAL #ifdef CONFIG_MEM_SOFT_DIRTY #define _PAGE_SOFT_DIRTY 0x002 /* SW pte soft dirty bit */ @@ -269,8 +268,10 @@ static inline int is_module_addr(void *addr) #define _REGION_ENTRY_BITS_LARGE 0xffffffff8000fe2fUL /* Bits in the segment table entry */ -#define _SEGMENT_ENTRY_BITS 0xfffffffffffffe33UL -#define _SEGMENT_ENTRY_BITS_LARGE 0xfffffffffff0ff33UL +#define _SEGMENT_ENTRY_BITS 0xfffffffffffffe33UL +#define _SEGMENT_ENTRY_BITS_LARGE 0xfffffffffff0ff33UL +#define _SEGMENT_ENTRY_HARDWARE_BITS 0xfffffffffffffe30UL +#define _SEGMENT_ENTRY_HARDWARE_BITS_LARGE 0xfffffffffff00730UL #define _SEGMENT_ENTRY_ORIGIN_LARGE ~0xfffffUL /* large page address */ #define _SEGMENT_ENTRY_ORIGIN ~0x7ffUL/* page table origin */ #define _SEGMENT_ENTRY_PROTECT 0x200 /* segment protection bit */ @@ -340,6 +341,8 @@ static inline int is_module_addr(void *addr) #define PTRS_PER_P4D _CRST_ENTRIES #define PTRS_PER_PGD _CRST_ENTRIES +#define MAX_PTRS_PER_P4D PTRS_PER_P4D + /* * Segment table and region3 table entry encoding * (R = read-only, I = invalid, y = young bit): @@ -465,6 +468,12 @@ static inline int is_module_addr(void *addr) _SEGMENT_ENTRY_YOUNG | \ _SEGMENT_ENTRY_PROTECT | \ _SEGMENT_ENTRY_NOEXEC) +#define SEGMENT_KERNEL_EXEC __pgprot(_SEGMENT_ENTRY | \ + _SEGMENT_ENTRY_LARGE | \ + _SEGMENT_ENTRY_READ | \ + _SEGMENT_ENTRY_WRITE | \ + _SEGMENT_ENTRY_YOUNG | \ + _SEGMENT_ENTRY_DIRTY) /* * Region3 entry (large page) protection definitions. @@ -484,6 +493,24 @@ static inline int is_module_addr(void *addr) _REGION_ENTRY_PROTECT | \ _REGION_ENTRY_NOEXEC) +static inline bool mm_p4d_folded(struct mm_struct *mm) +{ + return mm->context.asce_limit <= _REGION1_SIZE; +} +#define mm_p4d_folded(mm) mm_p4d_folded(mm) + +static inline bool mm_pud_folded(struct mm_struct *mm) +{ + return mm->context.asce_limit <= _REGION2_SIZE; +} +#define mm_pud_folded(mm) mm_pud_folded(mm) + +static inline bool mm_pmd_folded(struct mm_struct *mm) +{ + return mm->context.asce_limit <= _REGION3_SIZE; +} +#define mm_pmd_folded(mm) mm_pmd_folded(mm) + static inline int mm_has_pgste(struct mm_struct *mm) { #ifdef CONFIG_PGSTE @@ -507,10 +534,10 @@ static inline int mm_alloc_pgste(struct mm_struct *mm) * faults should no longer be backed by zero pages */ #define mm_forbids_zeropage mm_has_pgste -static inline int mm_use_skey(struct mm_struct *mm) +static inline int mm_uses_skeys(struct mm_struct *mm) { #ifdef CONFIG_PGSTE - if (mm->context.use_skey) + if (mm->context.uses_skeys) return 1; #endif return 0; @@ -598,6 +625,14 @@ static inline int pgd_bad(pgd_t pgd) return (pgd_val(pgd) & mask) != 0; } +static inline unsigned long pgd_pfn(pgd_t pgd) +{ + unsigned long origin_mask; + + origin_mask = _REGION_ENTRY_ORIGIN; + return (pgd_val(pgd) & origin_mask) >> PAGE_SHIFT; +} + static inline int p4d_folded(p4d_t p4d) { return (p4d_val(p4d) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2; @@ -1102,7 +1137,8 @@ int ptep_shadow_pte(struct mm_struct *mm, unsigned long saddr, pte_t *sptep, pte_t *tptep, pte_t pte); void ptep_unshadow_pte(struct mm_struct *mm, unsigned long saddr, pte_t *ptep); -bool test_and_clear_guest_dirty(struct mm_struct *mm, unsigned long address); +bool ptep_test_and_clear_uc(struct mm_struct *mm, unsigned long address, + pte_t *ptep); int set_guest_storage_key(struct mm_struct *mm, unsigned long addr, unsigned char key, bool nq); int cond_set_guest_storage_key(struct mm_struct *mm, unsigned long addr, @@ -1117,6 +1153,10 @@ int set_pgste_bits(struct mm_struct *mm, unsigned long addr, int get_pgste(struct mm_struct *mm, unsigned long hva, unsigned long *pgstep); int pgste_perform_essa(struct mm_struct *mm, unsigned long hva, int orc, unsigned long *oldpte, unsigned long *oldpgste); +void gmap_pmdp_csp(struct mm_struct *mm, unsigned long vmaddr); +void gmap_pmdp_invalidate(struct mm_struct *mm, unsigned long vmaddr); +void gmap_pmdp_idte_local(struct mm_struct *mm, unsigned long vmaddr); +void gmap_pmdp_idte_global(struct mm_struct *mm, unsigned long vmaddr); /* * Certain architectures need to do special things when PTEs @@ -1165,6 +1205,7 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot) #define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) #define pgd_offset_k(address) pgd_offset(&init_mm, address) +#define pgd_offset_raw(pgd, addr) ((pgd) + pgd_index(addr)) #define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN) #define pud_deref(pud) (pud_val(pud) & _REGION_ENTRY_ORIGIN) @@ -1204,7 +1245,8 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) #define pmd_page(pmd) pfn_to_page(pmd_pfn(pmd)) #define pud_page(pud) pfn_to_page(pud_pfn(pud)) -#define p4d_page(pud) pfn_to_page(p4d_pfn(p4d)) +#define p4d_page(p4d) pfn_to_page(p4d_pfn(p4d)) +#define pgd_page(pgd) pfn_to_page(pgd_pfn(pgd)) /* Find an entry in the lowest level page table.. */ #define pte_offset(pmd, addr) ((pte_t *) pmd_deref(*(pmd)) + pte_index(addr)) diff --git a/arch/s390/include/asm/pkey.h b/arch/s390/include/asm/pkey.h index 053117ba7328..9b6e79077866 100644 --- a/arch/s390/include/asm/pkey.h +++ b/arch/s390/include/asm/pkey.h @@ -109,4 +109,30 @@ int pkey_verifykey(const struct pkey_seckey *seckey, u16 *pcardnr, u16 *pdomain, u16 *pkeysize, u32 *pattributes); +/* + * In-kernel API: Generate (AES) random protected key. + * @param keytype one of the PKEY_KEYTYPE values + * @param protkey pointer to buffer receiving the protected key + * @return 0 on success, negative errno value on failure + */ +int pkey_genprotkey(__u32 keytype, struct pkey_protkey *protkey); + +/* + * In-kernel API: Verify an (AES) protected key. + * @param protkey pointer to buffer containing the protected key to verify + * @return 0 on success, negative errno value on failure. In case the protected + * key is not valid -EKEYREJECTED is returned + */ +int pkey_verifyprotkey(const struct pkey_protkey *protkey); + +/* + * In-kernel API: Transform an key blob (of any type) into a protected key. + * @param key pointer to a buffer containing the key blob + * @param keylen size of the key blob in bytes + * @param protkey pointer to buffer receiving the protected key + * @return 0 on success, negative errno value on failure + */ +int pkey_keyblob2pkey(const __u8 *key, __u32 keylen, + struct pkey_protkey *protkey); + #endif /* _KAPI_PKEY_H */ 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/processor.h b/arch/s390/include/asm/processor.h index 7f2953c15c37..81038ab357ce 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -73,12 +73,6 @@ static inline int test_cpu_flag_of(int flag, int cpu) #define arch_needs_cpu() test_cpu_flag(CIF_NOHZ_DELAY) -/* - * Default implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() ({ void *pc; asm("basr %0,0" : "=a" (pc)); pc; }) - static inline void get_cpu_id(struct cpuid *ptr) { asm volatile("stidp %0" : "=Q" (*ptr)); @@ -242,7 +236,7 @@ static inline unsigned long current_stack_pointer(void) return sp; } -static inline unsigned short stap(void) +static __no_kasan_or_inline unsigned short stap(void) { unsigned short cpu_address; @@ -250,6 +244,55 @@ static inline unsigned short stap(void) return cpu_address; } +#define CALL_ARGS_0() \ + register unsigned long r2 asm("2") +#define CALL_ARGS_1(arg1) \ + register unsigned long r2 asm("2") = (unsigned long)(arg1) +#define CALL_ARGS_2(arg1, arg2) \ + CALL_ARGS_1(arg1); \ + register unsigned long r3 asm("3") = (unsigned long)(arg2) +#define CALL_ARGS_3(arg1, arg2, arg3) \ + CALL_ARGS_2(arg1, arg2); \ + register unsigned long r4 asm("4") = (unsigned long)(arg3) +#define CALL_ARGS_4(arg1, arg2, arg3, arg4) \ + CALL_ARGS_3(arg1, arg2, arg3); \ + register unsigned long r4 asm("5") = (unsigned long)(arg4) +#define CALL_ARGS_5(arg1, arg2, arg3, arg4, arg5) \ + CALL_ARGS_4(arg1, arg2, arg3, arg4); \ + register unsigned long r4 asm("6") = (unsigned long)(arg5) + +#define CALL_FMT_0 +#define CALL_FMT_1 CALL_FMT_0, "0" (r2) +#define CALL_FMT_2 CALL_FMT_1, "d" (r3) +#define CALL_FMT_3 CALL_FMT_2, "d" (r4) +#define CALL_FMT_4 CALL_FMT_3, "d" (r5) +#define CALL_FMT_5 CALL_FMT_4, "d" (r6) + +#define CALL_CLOBBER_5 "0", "1", "14", "cc", "memory" +#define CALL_CLOBBER_4 CALL_CLOBBER_5 +#define CALL_CLOBBER_3 CALL_CLOBBER_4, "5" +#define CALL_CLOBBER_2 CALL_CLOBBER_3, "4" +#define CALL_CLOBBER_1 CALL_CLOBBER_2, "3" +#define CALL_CLOBBER_0 CALL_CLOBBER_1 + +#define CALL_ON_STACK(fn, stack, nr, args...) \ +({ \ + CALL_ARGS_##nr(args); \ + unsigned long prev; \ + \ + asm volatile( \ + " la %[_prev],0(15)\n" \ + " la 15,0(%[_stack])\n" \ + " stg %[_prev],%[_bc](15)\n" \ + " brasl 14,%[_fn]\n" \ + " la 15,0(%[_prev])\n" \ + : "+&d" (r2), [_prev] "=&a" (prev) \ + : [_stack] "a" (stack), \ + [_bc] "i" (offsetof(struct stack_frame, back_chain)), \ + [_fn] "X" (fn) CALL_FMT_##nr : CALL_CLOBBER_##nr); \ + r2; \ +}) + /* * Give up the time slice of the virtual PU. */ @@ -287,7 +330,7 @@ static inline void __load_psw(psw_t psw) * Set PSW mask to specified value, while leaving the * PSW addr pointing to the next instruction. */ -static inline void __load_psw_mask(unsigned long mask) +static __no_kasan_or_inline void __load_psw_mask(unsigned long mask) { unsigned long addr; psw_t psw; diff --git a/arch/s390/include/asm/purgatory.h b/arch/s390/include/asm/purgatory.h new file mode 100644 index 000000000000..e297bcfc476f --- /dev/null +++ b/arch/s390/include/asm/purgatory.h @@ -0,0 +1,17 @@ +/* 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); + +#endif /* __ASSEMBLY__ */ +#endif /* _S390_PURGATORY_H_ */ diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index de11ecc99c7c..d46edde7e458 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -252,17 +252,14 @@ struct slsb { * (for communication with upper layer programs) * (only required for use with completion queues) * @flags: flags indicating state of buffer - * @aob: pointer to QAOB used for the particular SBAL * @user: pointer to upper layer program's state information related to SBAL * (stored in user1 data of QAOB) */ struct qdio_outbuf_state { u8 flags; - struct qaob *aob; void *user; }; -#define QDIO_OUTBUF_STATE_FLAG_NONE 0x00 #define QDIO_OUTBUF_STATE_FLAG_PENDING 0x01 #define CHSC_AC1_INITIATE_INPUTQ 0x80 diff --git a/arch/s390/include/asm/reset.h b/arch/s390/include/asm/reset.h deleted file mode 100644 index 6450b31ade03..000000000000 --- a/arch/s390/include/asm/reset.h +++ /dev/null @@ -1,20 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright IBM Corp. 2006 - * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> - */ - -#ifndef _ASM_S390_RESET_H -#define _ASM_S390_RESET_H - -#include <linux/list.h> - -struct reset_call { - struct list_head list; - void (*fn)(void); -}; - -extern void register_reset_call(struct reset_call *reset); -extern void unregister_reset_call(struct reset_call *reset); -extern void s390_reset_system(void); -#endif /* _ASM_S390_RESET_H */ diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 3cae9168f63c..0cd4bda85eb1 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -95,6 +95,7 @@ extern struct sclp_info sclp; struct zpci_report_error_header { u8 version; /* Interface version byte */ u8 action; /* Action qualifier byte + * 0: Adapter Reset Request * 1: Deconfigure and repair action requested * (OpenCrypto Problem Call Home) * 2: Informational Report @@ -104,12 +105,17 @@ struct zpci_report_error_header { u8 data[0]; /* Subsequent Data passed verbatim to SCLP ET 24 */ } __packed; +int sclp_early_read_info(void); +int sclp_early_read_storage_info(void); int sclp_early_get_core_info(struct sclp_core_info *info); void sclp_early_get_ipl_info(struct sclp_ipl_info *info); void sclp_early_detect(void); void sclp_early_printk(const char *s); -void __sclp_early_printk(const char *s, unsigned int len); +void sclp_early_printk_force(const char *s); +void __sclp_early_printk(const char *s, unsigned int len, unsigned int force); +int sclp_early_get_memsize(unsigned long *mem); +int sclp_early_get_hsa_size(unsigned long *hsa_size); int _sclp_get_core_info(struct sclp_core_info *info); int sclp_core_configure(u8 core); int sclp_core_deconfigure(u8 core); 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/sections.h b/arch/s390/include/asm/sections.h index 54f81f8ed662..7afe4620685c 100644 --- a/arch/s390/include/asm/sections.h +++ b/arch/s390/include/asm/sections.h @@ -4,6 +4,16 @@ #include <asm-generic/sections.h> -extern char _ehead[]; +/* + * .boot.data section contains variables "shared" between the decompressor and + * the decompressed kernel. The decompressor will store values in them, and + * copy over to the decompressed image before starting it. + * + * Each variable end up in its own intermediate section .boot.data.<var name>, + * those sections are later sorted by alignment + name and merged together into + * final .boot.data section, which should be identical in the decompressor and + * the decompressed kernel (that is checked during the build). + */ +#define __bootdata(var) __section(.boot.data.var) var #endif diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index 2eb0c8a7b664..efda97804aa4 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 @@ -9,8 +9,10 @@ #include <linux/const.h> #include <uapi/asm/setup.h> - +#define EP_OFFSET 0x10008 +#define EP_STRING "S390EP" #define PARMAREA 0x10400 +#define PARMAREA_END 0x11000 /* * Machine features detected in early.c @@ -25,7 +27,6 @@ #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) @@ -38,24 +39,37 @@ #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 noexec_disabled; extern int memory_end_set; extern unsigned long memory_end; extern unsigned long max_physmem_end; -extern void detect_memory_memblock(void); - #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) #define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR) @@ -66,7 +80,6 @@ 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) @@ -123,12 +136,12 @@ 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/string.h b/arch/s390/include/asm/string.h index 50f26fc9acb2..116cc15a4b8a 100644 --- a/arch/s390/include/asm/string.h +++ b/arch/s390/include/asm/string.h @@ -53,6 +53,27 @@ char *strstr(const char *s1, const char *s2); #undef __HAVE_ARCH_STRSEP #undef __HAVE_ARCH_STRSPN +#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__) + +extern void *__memcpy(void *dest, const void *src, size_t n); +extern void *__memset(void *s, int c, size_t n); +extern void *__memmove(void *dest, const void *src, size_t n); + +/* + * For files that are not instrumented (e.g. mm/slub.c) we + * should use not instrumented version of mem* functions. + */ + +#define memcpy(dst, src, len) __memcpy(dst, src, len) +#define memmove(dst, src, len) __memmove(dst, src, len) +#define memset(s, c, n) __memset(s, c, n) + +#ifndef __NO_FORTIFY +#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */ +#endif + +#endif /* defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__) */ + void *__memset16(uint16_t *s, uint16_t v, size_t count); void *__memset32(uint32_t *s, uint32_t v, size_t count); void *__memset64(uint64_t *s, uint64_t v, size_t count); diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 83ba57533ce6..ce4e17c9aad6 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -11,19 +11,24 @@ #include <linux/const.h> /* - * Size of kernel stack for each process + * General size of kernel stacks */ +#ifdef CONFIG_KASAN +#define THREAD_SIZE_ORDER 4 +#else #define THREAD_SIZE_ORDER 2 -#define ASYNC_ORDER 2 - +#endif +#define BOOT_STACK_ORDER 2 #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) -#define ASYNC_SIZE (PAGE_SIZE << ASYNC_ORDER) #ifndef __ASSEMBLY__ #include <asm/lowcore.h> #include <asm/page.h> #include <asm/processor.h> +#define STACK_INIT_OFFSET \ + (THREAD_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs)) + /* * low level task data that entry.S needs immediate access to * - this struct should fit entirely inside of one cache line @@ -45,6 +50,9 @@ 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 /* diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index 457b7ba0fbb6..b31c779cf581 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -136,7 +136,7 @@ static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, unsigned long address) { - if (tlb->mm->context.asce_limit <= _REGION3_SIZE) + if (mm_pmd_folded(tlb->mm)) return; pgtable_pmd_page_dtor(virt_to_page(pmd)); tlb_remove_table(tlb, pmd); @@ -152,7 +152,7 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d, unsigned long address) { - if (tlb->mm->context.asce_limit <= _REGION1_SIZE) + if (mm_p4d_folded(tlb->mm)) return; tlb_remove_table(tlb, p4d); } @@ -167,7 +167,7 @@ static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d, static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud, unsigned long address) { - if (tlb->mm->context.asce_limit <= _REGION2_SIZE) + if (mm_pud_folded(tlb->mm)) return; tlb_remove_table(tlb, pud); } diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index fd79c0d35dc4..a1fbf15d53aa 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -15,6 +15,7 @@ #define __IGNORE_pkey_alloc #define __IGNORE_pkey_free +#define __ARCH_WANT_NEW_STAT #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_SYS_ALARM #define __ARCH_WANT_SYS_GETHOSTNAME @@ -25,7 +26,6 @@ #define __ARCH_WANT_SYS_IPC #define __ARCH_WANT_SYS_FADVISE64 #define __ARCH_WANT_SYS_GETPGRP -#define __ARCH_WANT_SYS_LLSEEK #define __ARCH_WANT_SYS_NICE #define __ARCH_WANT_SYS_OLD_GETRLIMIT #define __ARCH_WANT_SYS_OLD_MMAP @@ -34,6 +34,7 @@ #define __ARCH_WANT_SYS_SIGPROCMASK # ifdef CONFIG_COMPAT # define __ARCH_WANT_COMPAT_SYS_TIME +# define __ARCH_WANT_SYS_UTIME32 # endif #define __ARCH_WANT_SYS_FORK #define __ARCH_WANT_SYS_VFORK diff --git a/arch/s390/include/asm/vmlinux.lds.h b/arch/s390/include/asm/vmlinux.lds.h new file mode 100644 index 000000000000..2d127f900352 --- /dev/null +++ b/arch/s390/include/asm/vmlinux.lds.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include <asm/page.h> + +/* + * .boot.data section is shared between the decompressor code and the + * decompressed kernel. The decompressor will store values in it, and copy + * over to the decompressed image before starting it. + * + * .boot.data variables are kept in separate .boot.data.<var name> sections, + * which are sorted by alignment first, then by name before being merged + * into single .boot.data section. This way big holes cased by page aligned + * structs are avoided and linker produces consistent result. + */ +#define BOOT_DATA \ + . = ALIGN(PAGE_SIZE); \ + .boot.data : { \ + __boot_data_start = .; \ + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.boot.data*))) \ + __boot_data_end = .; \ + } diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild index faef3f7e8353..dc38a90cf091 100644 --- a/arch/s390/include/uapi/asm/Kbuild +++ b/arch/s390/include/uapi/asm/Kbuild @@ -9,9 +9,13 @@ generic-y += errno.h generic-y += fcntl.h generic-y += ioctl.h generic-y += mman.h +generic-y += msgbuf.h generic-y += param.h generic-y += poll.h generic-y += resource.h +generic-y += sembuf.h +generic-y += shmbuf.h generic-y += sockios.h generic-y += swab.h generic-y += termbits.h +generic-y += siginfo.h
\ No newline at end of file diff --git a/arch/s390/include/uapi/asm/chsc.h b/arch/s390/include/uapi/asm/chsc.h index dc329aa03f76..83a574e95b3a 100644 --- a/arch/s390/include/uapi/asm/chsc.h +++ b/arch/s390/include/uapi/asm/chsc.h @@ -23,29 +23,29 @@ struct chsc_async_header { __u32 key : 4; __u32 : 28; struct subchannel_id sid; -} __attribute__ ((packed)); +}; struct chsc_async_area { struct chsc_async_header header; __u8 data[CHSC_SIZE - sizeof(struct chsc_async_header)]; -} __attribute__ ((packed)); +}; struct chsc_header { __u16 length; __u16 code; -} __attribute__ ((packed)); +}; struct chsc_sync_area { struct chsc_header header; __u8 data[CHSC_SIZE - sizeof(struct chsc_header)]; -} __attribute__ ((packed)); +}; struct chsc_response_struct { __u16 length; __u16 code; __u32 parms; __u8 data[CHSC_SIZE - 2 * sizeof(__u16) - sizeof(__u32)]; -} __attribute__ ((packed)); +}; struct chsc_chp_cd { struct chp_id chpid; diff --git a/arch/s390/include/uapi/asm/dasd.h b/arch/s390/include/uapi/asm/dasd.h index 451c601406b6..832be5c2584f 100644 --- a/arch/s390/include/uapi/asm/dasd.h +++ b/arch/s390/include/uapi/asm/dasd.h @@ -68,25 +68,27 @@ typedef struct dasd_information2_t { #define DASD_FORMAT_CDL 2 /* * values to be used for dasd_information_t.features - * 0x00: default features - * 0x01: readonly (ro) - * 0x02: use diag discipline (diag) - * 0x04: set the device initially online (internal use only) - * 0x08: enable ERP related logging - * 0x10: allow I/O to fail on lost paths - * 0x20: allow I/O to fail when a lock was stolen - * 0x40: give access to raw eckd data - * 0x80: enable discard support + * 0x100: default features + * 0x001: readonly (ro) + * 0x002: use diag discipline (diag) + * 0x004: set the device initially online (internal use only) + * 0x008: enable ERP related logging + * 0x010: allow I/O to fail on lost paths + * 0x020: allow I/O to fail when a lock was stolen + * 0x040: give access to raw eckd data + * 0x080: enable discard support + * 0x100: enable autodisable for IFCC errors (default) */ -#define DASD_FEATURE_DEFAULT 0x00 -#define DASD_FEATURE_READONLY 0x01 -#define DASD_FEATURE_USEDIAG 0x02 -#define DASD_FEATURE_INITIAL_ONLINE 0x04 -#define DASD_FEATURE_ERPLOG 0x08 -#define DASD_FEATURE_FAILFAST 0x10 -#define DASD_FEATURE_FAILONSLCK 0x20 -#define DASD_FEATURE_USERAW 0x40 -#define DASD_FEATURE_DISCARD 0x80 +#define DASD_FEATURE_READONLY 0x001 +#define DASD_FEATURE_USEDIAG 0x002 +#define DASD_FEATURE_INITIAL_ONLINE 0x004 +#define DASD_FEATURE_ERPLOG 0x008 +#define DASD_FEATURE_FAILFAST 0x010 +#define DASD_FEATURE_FAILONSLCK 0x020 +#define DASD_FEATURE_USERAW 0x040 +#define DASD_FEATURE_DISCARD 0x080 +#define DASD_FEATURE_PATH_AUTODISABLE 0x100 +#define DASD_FEATURE_DEFAULT DASD_FEATURE_PATH_AUTODISABLE #define DASD_PARTN_BITS 2 diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h index 4cdaa55fabfe..16511d97e8dc 100644 --- a/arch/s390/include/uapi/asm/kvm.h +++ b/arch/s390/include/uapi/asm/kvm.h @@ -4,7 +4,7 @@ /* * KVM s390 specific structures and definitions * - * Copyright IBM Corp. 2008 + * Copyright IBM Corp. 2008, 2018 * * Author(s): Carsten Otte <cotte@de.ibm.com> * Christian Borntraeger <borntraeger@de.ibm.com> @@ -160,6 +160,8 @@ struct kvm_s390_vm_cpu_subfunc { #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW 1 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW 2 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW 3 +#define KVM_S390_VM_CRYPTO_ENABLE_APIE 4 +#define KVM_S390_VM_CRYPTO_DISABLE_APIE 5 /* kvm attributes for migration mode */ #define KVM_S390_VM_MIGRATION_STOP 0 @@ -225,6 +227,7 @@ struct kvm_guest_debug_arch { #define KVM_SYNC_FPRS (1UL << 8) #define KVM_SYNC_GSCB (1UL << 9) #define KVM_SYNC_BPBC (1UL << 10) +#define KVM_SYNC_ETOKEN (1UL << 11) /* length and alignment of the sdnx as a power of two */ #define SDNXC 8 #define SDNXL (1UL << SDNXC) @@ -258,6 +261,8 @@ struct kvm_sync_regs { struct { __u64 reserved1[2]; __u64 gscb[4]; + __u64 etoken; + __u64 etoken_extension; }; }; }; diff --git a/arch/s390/include/uapi/asm/msgbuf.h b/arch/s390/include/uapi/asm/msgbuf.h deleted file mode 100644 index 604f847cd68c..000000000000 --- a/arch/s390/include/uapi/asm/msgbuf.h +++ /dev/null @@ -1,38 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _S390_MSGBUF_H -#define _S390_MSGBUF_H - -/* - * The msqid64_ds structure for S/390 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct msqid64_ds { - struct ipc64_perm msg_perm; - __kernel_time_t msg_stime; /* last msgsnd time */ -#ifndef __s390x__ - unsigned long __unused1; -#endif /* ! __s390x__ */ - __kernel_time_t msg_rtime; /* last msgrcv time */ -#ifndef __s390x__ - unsigned long __unused2; -#endif /* ! __s390x__ */ - __kernel_time_t msg_ctime; /* last change time */ -#ifndef __s390x__ - unsigned long __unused3; -#endif /* ! __s390x__ */ - unsigned long msg_cbytes; /* current number of bytes on queue */ - unsigned long msg_qnum; /* number of messages in queue */ - unsigned long msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned long __unused4; - unsigned long __unused5; -}; - -#endif /* _S390_MSGBUF_H */ diff --git a/arch/s390/include/uapi/asm/pkey.h b/arch/s390/include/uapi/asm/pkey.h index 6f84a53c3270..c0e86ce4a00b 100644 --- a/arch/s390/include/uapi/asm/pkey.h +++ b/arch/s390/include/uapi/asm/pkey.h @@ -21,9 +21,13 @@ #define PKEY_IOCTL_MAGIC 'p' #define SECKEYBLOBSIZE 64 /* secure key blob size is always 64 bytes */ +#define PROTKEYBLOBSIZE 80 /* protected key blob size is always 80 bytes */ #define MAXPROTKEYSIZE 64 /* a protected key blob may be up to 64 bytes */ #define MAXCLRKEYSIZE 32 /* a clear key value may be up to 32 bytes */ +#define MINKEYBLOBSIZE SECKEYBLOBSIZE /* Minimum size of a key blob */ +#define MAXKEYBLOBSIZE PROTKEYBLOBSIZE /* Maximum size of a key blob */ + /* defines for the type field within the pkey_protkey struct */ #define PKEY_KEYTYPE_AES_128 1 #define PKEY_KEYTYPE_AES_192 2 @@ -129,4 +133,34 @@ struct pkey_verifykey { #define PKEY_VERIFY_ATTR_AES 0x00000001 /* key is an AES key */ #define PKEY_VERIFY_ATTR_OLD_MKVP 0x00000100 /* key has old MKVP value */ +/* + * Generate (AES) random protected key. + */ +struct pkey_genprotk { + __u32 keytype; /* in: key type to generate */ + struct pkey_protkey protkey; /* out: the protected key */ +}; + +#define PKEY_GENPROTK _IOWR(PKEY_IOCTL_MAGIC, 0x08, struct pkey_genprotk) + +/* + * Verify an (AES) protected key. + */ +struct pkey_verifyprotk { + struct pkey_protkey protkey; /* in: the protected key to verify */ +}; + +#define PKEY_VERIFYPROTK _IOW(PKEY_IOCTL_MAGIC, 0x09, struct pkey_verifyprotk) + +/* + * Transform an key blob (of any type) into a protected key + */ +struct pkey_kblob2pkey { + __u8 __user *key; /* in: the key blob */ + __u32 keylen; /* in: the key blob length */ + struct pkey_protkey protkey; /* out: the protected key */ +}; + +#define PKEY_KBLOB2PROTK _IOWR(PKEY_IOCTL_MAGIC, 0x0A, struct pkey_kblob2pkey) + #endif /* _UAPI_PKEY_H */ diff --git a/arch/s390/include/uapi/asm/sembuf.h b/arch/s390/include/uapi/asm/sembuf.h deleted file mode 100644 index 3e917697b668..000000000000 --- a/arch/s390/include/uapi/asm/sembuf.h +++ /dev/null @@ -1,30 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _S390_SEMBUF_H -#define _S390_SEMBUF_H - -/* - * The semid64_ds structure for S/390 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem (for !__s390x__) - * - 2 miscellaneous 32-bit values - */ - -struct semid64_ds { - struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - __kernel_time_t sem_otime; /* last semop time */ -#ifndef __s390x__ - unsigned long __unused1; -#endif /* ! __s390x__ */ - __kernel_time_t sem_ctime; /* last change time */ -#ifndef __s390x__ - unsigned long __unused2; -#endif /* ! __s390x__ */ - unsigned long sem_nsems; /* no. of semaphores in array */ - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _S390_SEMBUF_H */ diff --git a/arch/s390/include/uapi/asm/shmbuf.h b/arch/s390/include/uapi/asm/shmbuf.h deleted file mode 100644 index 9cdce8d7ce60..000000000000 --- a/arch/s390/include/uapi/asm/shmbuf.h +++ /dev/null @@ -1,49 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _S390_SHMBUF_H -#define _S390_SHMBUF_H - -/* - * The shmid64_ds structure for S/390 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem (for !__s390x__) - * - 2 miscellaneous 32-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ -#ifndef __s390x__ - unsigned long __unused1; -#endif /* ! __s390x__ */ - __kernel_time_t shm_dtime; /* last detach time */ -#ifndef __s390x__ - unsigned long __unused2; -#endif /* ! __s390x__ */ - __kernel_time_t shm_ctime; /* last change time */ -#ifndef __s390x__ - unsigned long __unused3; -#endif /* ! __s390x__ */ - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused4; - unsigned long __unused5; -}; - -struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _S390_SHMBUF_H */ diff --git a/arch/s390/include/uapi/asm/siginfo.h b/arch/s390/include/uapi/asm/siginfo.h deleted file mode 100644 index 6984820f2f1c..000000000000 --- a/arch/s390/include/uapi/asm/siginfo.h +++ /dev/null @@ -1,17 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -/* - * S390 version - * - * Derived from "include/asm-i386/siginfo.h" - */ - -#ifndef _S390_SIGINFO_H -#define _S390_SIGINFO_H - -#ifdef __s390x__ -#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) -#endif - -#include <asm-generic/siginfo.h> - -#endif diff --git a/arch/s390/include/uapi/asm/signal.h b/arch/s390/include/uapi/asm/signal.h index c57f9d28d894..9a14a611ed82 100644 --- a/arch/s390/include/uapi/asm/signal.h +++ b/arch/s390/include/uapi/asm/signal.h @@ -97,22 +97,31 @@ typedef unsigned long sigset_t; #include <asm-generic/signal-defs.h> #ifndef __KERNEL__ -/* Here we must cater to libcs that poke about in kernel headers. */ +/* + * There are two system calls in regard to sigaction, sys_rt_sigaction + * and sys_sigaction. Internally the kernel uses the struct old_sigaction + * for the older sys_sigaction system call, and the kernel version of the + * struct sigaction for the newer sys_rt_sigaction. + * + * The uapi definition for struct sigaction has made a strange distinction + * between 31-bit and 64-bit in the past. For 64-bit the uapi structure + * looks like the kernel struct sigaction, but for 31-bit it used to + * look like the kernel struct old_sigaction. That practically made the + * structure unusable for either system call. To get around this problem + * the glibc always had its own definitions for the sigaction structures. + * + * The current struct sigaction uapi definition below is suitable for the + * sys_rt_sigaction system call only. + */ struct sigaction { union { __sighandler_t _sa_handler; void (*_sa_sigaction)(int, struct siginfo *, void *); } _u; -#ifndef __s390x__ /* lovely */ - sigset_t sa_mask; - unsigned long sa_flags; - void (*sa_restorer)(void); -#else /* __s390x__ */ unsigned long sa_flags; void (*sa_restorer)(void); sigset_t sa_mask; -#endif /* __s390x__ */ }; #define sa_handler _u._sa_handler diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h index 3510c0fd06f4..39d901476ee5 100644 --- a/arch/s390/include/uapi/asm/socket.h +++ b/arch/s390/include/uapi/asm/socket.h @@ -111,4 +111,7 @@ #define SO_ZEROCOPY 60 +#define SO_TXTIME 61 +#define SCM_TXTIME SO_TXTIME + #endif /* _ASM_SOCKET_H */ diff --git a/arch/s390/include/uapi/asm/zcrypt.h b/arch/s390/include/uapi/asm/zcrypt.h index d568307321fc..42c81a95e97b 100644 --- a/arch/s390/include/uapi/asm/zcrypt.h +++ b/arch/s390/include/uapi/asm/zcrypt.h @@ -2,9 +2,9 @@ /* * include/asm-s390/zcrypt.h * - * zcrypt 2.1.0 (user-visible header) + * zcrypt 2.2.1 (user-visible header) * - * Copyright IBM Corp. 2001, 2006 + * Copyright IBM Corp. 2001, 2018 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) * @@ -15,12 +15,15 @@ #define __ASM_S390_ZCRYPT_H #define ZCRYPT_VERSION 2 -#define ZCRYPT_RELEASE 1 +#define ZCRYPT_RELEASE 2 #define ZCRYPT_VARIANT 1 #include <linux/ioctl.h> #include <linux/compiler.h> +/* Name of the zcrypt device driver. */ +#define ZCRYPT_NAME "zcrypt" + /** * struct ica_rsa_modexpo * @@ -32,12 +35,12 @@ * - length(n_modulus) = inputdatalength */ struct ica_rsa_modexpo { - char __user * inputdata; - unsigned int inputdatalength; - char __user * outputdata; - unsigned int outputdatalength; - char __user * b_key; - char __user * n_modulus; + char __user *inputdata; + unsigned int inputdatalength; + char __user *outputdata; + unsigned int outputdatalength; + char __user *b_key; + char __user *n_modulus; }; /** @@ -55,15 +58,15 @@ struct ica_rsa_modexpo { * - length(u_mult_inv) = inputdatalength/2 + 8 */ struct ica_rsa_modexpo_crt { - char __user * inputdata; - unsigned int inputdatalength; - char __user * outputdata; - unsigned int outputdatalength; - char __user * bp_key; - char __user * bq_key; - char __user * np_prime; - char __user * nq_prime; - char __user * u_mult_inv; + char __user *inputdata; + unsigned int inputdatalength; + char __user *outputdata; + unsigned int outputdatalength; + char __user *bp_key; + char __user *bq_key; + char __user *np_prime; + char __user *nq_prime; + char __user *u_mult_inv; }; /** @@ -93,18 +96,18 @@ struct CPRBX { unsigned int req_extbl; /* request extension block len */ unsigned char pad_001[4]; /* reserved */ unsigned int rpld_extbl; /* replied extension block len */ - unsigned char padx000[16 - sizeof (char *)]; - unsigned char * req_parmb; /* request parm block 'address' */ - unsigned char padx001[16 - sizeof (char *)]; - unsigned char * req_datab; /* request data block 'address' */ - unsigned char padx002[16 - sizeof (char *)]; - unsigned char * rpl_parmb; /* reply parm block 'address' */ - unsigned char padx003[16 - sizeof (char *)]; - unsigned char * rpl_datab; /* reply data block 'address' */ - unsigned char padx004[16 - sizeof (char *)]; - unsigned char * req_extb; /* request extension block 'addr'*/ - unsigned char padx005[16 - sizeof (char *)]; - unsigned char * rpl_extb; /* reply extension block 'address'*/ + unsigned char padx000[16 - sizeof(char *)]; + unsigned char *req_parmb; /* request parm block 'address' */ + unsigned char padx001[16 - sizeof(char *)]; + unsigned char *req_datab; /* request data block 'address' */ + unsigned char padx002[16 - sizeof(char *)]; + unsigned char *rpl_parmb; /* reply parm block 'address' */ + unsigned char padx003[16 - sizeof(char *)]; + unsigned char *rpl_datab; /* reply data block 'address' */ + unsigned char padx004[16 - sizeof(char *)]; + unsigned char *req_extb; /* request extension block 'addr'*/ + unsigned char padx005[16 - sizeof(char *)]; + unsigned char *rpl_extb; /* reply extension block 'address'*/ unsigned short ccp_rtcode; /* server return code */ unsigned short ccp_rscode; /* server reason code */ unsigned int mac_data_len; /* Mac Data Length */ @@ -127,17 +130,17 @@ struct ica_xcRB { unsigned int user_defined; unsigned short request_ID; unsigned int request_control_blk_length; - unsigned char padding1[16 - sizeof (char *)]; - char __user * request_control_blk_addr; + unsigned char padding1[16 - sizeof(char *)]; + char __user *request_control_blk_addr; unsigned int request_data_length; - char padding2[16 - sizeof (char *)]; - char __user * request_data_address; + char padding2[16 - sizeof(char *)]; + char __user *request_data_address; unsigned int reply_control_blk_length; - char padding3[16 - sizeof (char *)]; - char __user * reply_control_blk_addr; + char padding3[16 - sizeof(char *)]; + char __user *reply_control_blk_addr; unsigned int reply_data_length; - char padding4[16 - sizeof (char *)]; - char __user * reply_data_addr; + char padding4[16 - sizeof(char *)]; + char __user *reply_data_addr; unsigned short priority_window; unsigned int status; } __attribute__((packed)); @@ -203,9 +206,9 @@ struct ep11_urb { } __attribute__((packed)); /** - * struct zcrypt_device_status + * struct zcrypt_device_status_ext * @hwtype: raw hardware type - * @qid: 6 bit device index, 8 bit domain + * @qid: 8 bit device index, 8 bit domain * @functions: AP device function bit field 'abcdef' * a, b, c = reserved * d = CCA coprocessor @@ -214,31 +217,26 @@ struct ep11_urb { * @online online status * @reserved reserved */ -struct zcrypt_device_status { +struct zcrypt_device_status_ext { unsigned int hwtype:8; - unsigned int qid:14; + unsigned int qid:16; unsigned int online:1; unsigned int functions:6; - unsigned int reserved:3; + unsigned int reserved:1; }; -#define MAX_ZDEV_CARDIDS 64 -#define MAX_ZDEV_DOMAINS 256 +#define MAX_ZDEV_CARDIDS_EXT 256 +#define MAX_ZDEV_DOMAINS_EXT 256 -/** - * Maximum number of zcrypt devices - */ -#define MAX_ZDEV_ENTRIES (MAX_ZDEV_CARDIDS * MAX_ZDEV_DOMAINS) +/* Maximum number of zcrypt devices */ +#define MAX_ZDEV_ENTRIES_EXT (MAX_ZDEV_CARDIDS_EXT * MAX_ZDEV_DOMAINS_EXT) -/** - * zcrypt_device_matrix - * Device matrix of all zcrypt devices - */ -struct zcrypt_device_matrix { - struct zcrypt_device_status device[MAX_ZDEV_ENTRIES]; +/* Device matrix of all zcrypt devices */ +struct zcrypt_device_matrix_ext { + struct zcrypt_device_status_ext device[MAX_ZDEV_ENTRIES_EXT]; }; -#define AUTOSELECT ((unsigned int)0xFFFFFFFF) +#define AUTOSELECT 0xFFFFFFFF #define ZCRYPT_IOCTL_MAGIC 'z' @@ -270,71 +268,35 @@ struct zcrypt_device_matrix { * ZSENDEP11CPRB * Send an arbitrary EP11 CPRB to an EP11 coprocessor crypto card. * - * Z90STAT_STATUS_MASK - * Return an 64 element array of unsigned chars for the status of - * all devices. + * ZCRYPT_DEVICE_STATUS + * The given struct zcrypt_device_matrix_ext is updated with + * status information for each currently known apqn. + * + * ZCRYPT_STATUS_MASK + * Return an MAX_ZDEV_CARDIDS_EXT element array of unsigned chars for the + * status of all devices. * 0x01: PCICA * 0x02: PCICC * 0x03: PCIXCC_MCL2 * 0x04: PCIXCC_MCL3 * 0x05: CEX2C * 0x06: CEX2A - * 0x0d: device is disabled via the proc filesystem - * - * Z90STAT_QDEPTH_MASK - * Return an 64 element array of unsigned chars for the queue - * depth of all devices. + * 0x07: CEX3C + * 0x08: CEX3A + * 0x0a: CEX4 + * 0x0b: CEX5 + * 0x0c: CEX6 + * 0x0d: device is disabled * - * Z90STAT_PERDEV_REQCNT - * Return an 64 element array of unsigned integers for the number - * of successfully completed requests per device since the device - * was detected and made available. + * ZCRYPT_QDEPTH_MASK + * Return an MAX_ZDEV_CARDIDS_EXT element array of unsigned chars for the + * queue depth of all devices. * - * Z90STAT_REQUESTQ_COUNT - * Return an integer count of the number of entries waiting to be - * sent to a device. + * ZCRYPT_PERDEV_REQCNT + * Return an MAX_ZDEV_CARDIDS_EXT element array of unsigned integers for + * the number of successfully completed requests per device since the + * device was detected and made available. * - * Z90STAT_PENDINGQ_COUNT - * Return an integer count of the number of entries sent to all - * devices awaiting the reply. - * - * Z90STAT_TOTALOPEN_COUNT - * Return an integer count of the number of open file handles. - * - * Z90STAT_DOMAIN_INDEX - * Return the integer value of the Cryptographic Domain. - * - * The following ioctls are deprecated and should be no longer used: - * - * Z90STAT_TOTALCOUNT - * Return an integer count of all device types together. - * - * Z90STAT_PCICACOUNT - * Return an integer count of all PCICAs. - * - * Z90STAT_PCICCCOUNT - * Return an integer count of all PCICCs. - * - * Z90STAT_PCIXCCMCL2COUNT - * Return an integer count of all MCL2 PCIXCCs. - * - * Z90STAT_PCIXCCMCL3COUNT - * Return an integer count of all MCL3 PCIXCCs. - * - * Z90STAT_CEX2CCOUNT - * Return an integer count of all CEX2Cs. - * - * Z90STAT_CEX2ACOUNT - * Return an integer count of all CEX2As. - * - * ICAZ90STATUS - * Return some device driver status in a ica_z90_status struct - * This takes an ica_z90_status struct as its arg. - * - * Z90STAT_PCIXCCCOUNT - * Return an integer count of all PCIXCCs (MCL2 + MCL3). - * This is DEPRECATED now that MCL3 PCIXCCs are treated differently from - * MCL2 PCIXCCs. */ /** @@ -344,22 +306,66 @@ struct zcrypt_device_matrix { #define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0) #define ZSECSENDCPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0) #define ZSENDEP11CPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x04, 0) -#define ZDEVICESTATUS _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x4f, 0) - -/* New status calls */ -#define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int) -#define Z90STAT_PCICACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x41, int) -#define Z90STAT_PCICCCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x42, int) -#define Z90STAT_PCIXCCMCL2COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4b, int) -#define Z90STAT_PCIXCCMCL3COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4c, int) -#define Z90STAT_CEX2CCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4d, int) -#define Z90STAT_CEX2ACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4e, int) + +#define ZCRYPT_DEVICE_STATUS _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x5f, 0) +#define ZCRYPT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x58, char[MAX_ZDEV_CARDIDS_EXT]) +#define ZCRYPT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x59, char[MAX_ZDEV_CARDIDS_EXT]) +#define ZCRYPT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x5a, int[MAX_ZDEV_CARDIDS_EXT]) + +/* + * Support for multiple zcrypt device nodes. + */ + +/* Nr of minor device node numbers to allocate. */ +#define ZCRYPT_MAX_MINOR_NODES 256 + +/* Max amount of possible ioctls */ +#define MAX_ZDEV_IOCTLS (1 << _IOC_NRBITS) + +/* + * Only deprecated defines, structs and ioctls below this line. + */ + +/* Deprecated: use MAX_ZDEV_CARDIDS_EXT */ +#define MAX_ZDEV_CARDIDS 64 +/* Deprecated: use MAX_ZDEV_DOMAINS_EXT */ +#define MAX_ZDEV_DOMAINS 256 + +/* Deprecated: use MAX_ZDEV_ENTRIES_EXT */ +#define MAX_ZDEV_ENTRIES (MAX_ZDEV_CARDIDS * MAX_ZDEV_DOMAINS) + +/* Deprecated: use struct zcrypt_device_status_ext */ +struct zcrypt_device_status { + unsigned int hwtype:8; + unsigned int qid:14; + unsigned int online:1; + unsigned int functions:6; + unsigned int reserved:3; +}; + +/* Deprecated: use struct zcrypt_device_matrix_ext */ +struct zcrypt_device_matrix { + struct zcrypt_device_status device[MAX_ZDEV_ENTRIES]; +}; + +/* Deprecated: use ZCRYPT_DEVICE_STATUS */ +#define ZDEVICESTATUS _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x4f, 0) +/* Deprecated: use ZCRYPT_STATUS_MASK */ +#define Z90STAT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64]) +/* Deprecated: use ZCRYPT_QDEPTH_MASK */ +#define Z90STAT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64]) +/* Deprecated: use ZCRYPT_PERDEV_REQCNT */ +#define Z90STAT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64]) + +/* Deprecated: use sysfs to query these values */ #define Z90STAT_REQUESTQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x44, int) #define Z90STAT_PENDINGQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x45, int) #define Z90STAT_TOTALOPEN_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x46, int) #define Z90STAT_DOMAIN_INDEX _IOR(ZCRYPT_IOCTL_MAGIC, 0x47, int) -#define Z90STAT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64]) -#define Z90STAT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64]) -#define Z90STAT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64]) + +/* + * The ioctl number ranges 0x40 - 0x42 and 0x4b - 0x4e had been used in the + * past, don't assign new ioctls for these. + */ #endif /* __ASM_S390_ZCRYPT_H */ |
