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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Browse Source 
Pull s390 updates from Heiko Carstens:
 "Since Martin is on vacation you get the s390 pull request for the
  v4.15 merge window this time from me.

  Besides a lot of cleanups and bug fixes these are the most important
  changes:

   - a new regset for runtime instrumentation registers

   - hardware accelerated AES-GCM support for the aes_s390 module

   - support for the new CEX6S crypto cards

   - support for FORTIFY_SOURCE

   - addition of missing z13 and new z14 instructions to the in-kernel
     disassembler

   - generate opcode tables for the in-kernel disassembler out of a
     simple text file instead of having to manually maintain those
     tables

   - fast memset16, memset32 and memset64 implementations

   - removal of named saved segment support

   - hardware counter support for z14

   - queued spinlocks and queued rwlocks implementations for s390

   - use the stack_depth tracking feature for s390 BPF JIT

   - a new s390_sthyi system call which emulates the sthyi (store
     hypervisor information) instruction

   - removal of the old KVM virtio transport

   - an s390 specific CPU alternatives implementation which is used in
     the new spinlock code"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (88 commits)
  MAINTAINERS: add virtio-ccw.h to virtio/s390 section
  s390/noexec: execute kexec datamover without DAT
  s390: fix transactional execution control register handling
  s390/bpf: take advantage of stack_depth tracking
  s390: simplify transactional execution elf hwcap handling
  s390/zcrypt: Rework struct ap_qact_ap_info.
  s390/virtio: remove unused header file kvm_virtio.h
  s390: avoid undefined behaviour
  s390/disassembler: generate opcode tables from text file
  s390/disassembler: remove insn_to_mnemonic()
  s390/dasd: avoid calling do_gettimeofday()
  s390: vfio-ccw: Do not attempt to free no-op, test and tic cda.
  s390: remove named saved segment support
  s390/archrandom: Reconsider s390 arch random implementation
  s390/pci: do not require AIS facility
  s390/qdio: sanitize put_indicator
  s390/qdio: use atomic_cmpxchg
  s390/nmi: avoid using long-displacement facility
  s390: pass endianness info to sparse
  s390/decompressor: remove informational messages
  ...
This commit is contained in:
Linus Torvalds
2017-11-13 11:47:01 -08:00
parent 2101dd64b3 364a5607d6
commit d60a540ac5
125 changed files with 4788 additions and 4617 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
drivers/s390/crypto/ap_asm.h
View File

@@ -117,6 +117,49 @@ static inline int ap_qci(void *config)
return reg1;
}
/*
* 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.
*
* Returns AP queue status. Check response_code field for failures.
*/
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") = 0;
asm volatile(
".long 0xb2af0000" /* PQAP(QACT) */
: "+d" (reg0), "+d" (reg1_in), "=d" (reg1_out), "+d" (reg2)
: : "cc");
apinfo->val = reg2;
return reg1_out;
}
/**
* ap_nqap(): Send message to adjunct processor queue.
* @qid: The AP queue number

74
drivers/s390/crypto/ap_bus.c
View File

@@ -176,6 +176,18 @@ static int ap_apft_available(void)
return test_facility(15);
}
/*
* ap_qact_available(): Test if the PQAP(QACT) subfunction is available.
*
* Returns 1 if the QACT subfunction is available.
*/
static inline int ap_qact_available(void)
{
if (ap_configuration)
return ap_configuration->qact;
return 0;
}
/**
* ap_test_queue(): Test adjunct processor queue.
* @qid: The AP queue number
@@ -987,6 +999,47 @@ static int ap_select_domain(void)
return -ENODEV;
}
/*
* This function checks the type and returns either 0 for not
* supported or the highest compatible type value (which may
* include the input type value).
*/
static int ap_get_compatible_type(ap_qid_t qid, int rawtype, unsigned int func)
{
int comp_type = 0;
/* < CEX2A is not supported */
if (rawtype < AP_DEVICE_TYPE_CEX2A)
return 0;
/* up to CEX6 known and fully supported */
if (rawtype <= AP_DEVICE_TYPE_CEX6)
return rawtype;
/*
* unknown new type > CEX6, check for compatibility
* to the highest known and supported type which is
* currently CEX6 with the help of the QACT function.
*/
if (ap_qact_available()) {
struct ap_queue_status status;
union ap_qact_ap_info apinfo = {0};
apinfo.mode = (func >> 26) & 0x07;
apinfo.cat = AP_DEVICE_TYPE_CEX6;
status = ap_qact(qid, 0, &apinfo);
if (status.response_code == AP_RESPONSE_NORMAL
&& apinfo.cat >= AP_DEVICE_TYPE_CEX2A
&& apinfo.cat <= AP_DEVICE_TYPE_CEX6)
comp_type = apinfo.cat;
}
if (!comp_type)
AP_DBF(DBF_WARN, "queue=%02x.%04x unable to map type %d\n",
AP_QID_CARD(qid), AP_QID_QUEUE(qid), rawtype);
else if (comp_type != rawtype)
AP_DBF(DBF_INFO, "queue=%02x.%04x map type %d to %d\n",
AP_QID_CARD(qid), AP_QID_QUEUE(qid), rawtype, comp_type);
return comp_type;
}
/*
* helper function to be used with bus_find_dev
* matches for the card device with the given id
@@ -1014,8 +1067,8 @@ static void ap_scan_bus(struct work_struct *unused)
struct ap_card *ac;
struct device *dev;
ap_qid_t qid;
int depth = 0, type = 0;
unsigned int functions = 0;
int comp_type, depth = 0, type = 0;
unsigned int func = 0;
int rc, id, dom, borked, domains, defdomdevs = 0;
AP_DBF(DBF_DEBUG, "ap_scan_bus running\n");
@@ -1066,12 +1119,12 @@ static void ap_scan_bus(struct work_struct *unused)
}
continue;
}
rc = ap_query_queue(qid, &depth, &type, &functions);
rc = ap_query_queue(qid, &depth, &type, &func);
if (dev) {
spin_lock_bh(&aq->lock);
if (rc == -ENODEV ||
/* adapter reconfiguration */
(ac && ac->functions != functions))
(ac && ac->functions != func))
aq->state = AP_STATE_BORKED;
borked = aq->state == AP_STATE_BORKED;
spin_unlock_bh(&aq->lock);
@@ -1087,11 +1140,14 @@ static void ap_scan_bus(struct work_struct *unused)
}
if (rc)
continue;
/* new queue device needed */
/* a new queue device is needed, check out comp type */
comp_type = ap_get_compatible_type(qid, type, func);
if (!comp_type)
continue;
/* maybe a card device needs to be created first */
if (!ac) {
/* but first create the card device */
ac = ap_card_create(id, depth,
type, functions);
ac = ap_card_create(id, depth, type,
comp_type, func);
if (!ac)
continue;
ac->ap_dev.device.bus = &ap_bus_type;
@@ -1109,7 +1165,7 @@ static void ap_scan_bus(struct work_struct *unused)
get_device(&ac->ap_dev.device);
}
/* now create the new queue device */
aq = ap_queue_create(qid, type);
aq = ap_queue_create(qid, comp_type);
if (!aq)
continue;
aq->card = ac;

4
drivers/s390/crypto/ap_bus.h
View File

@@ -250,8 +250,8 @@ void ap_queue_remove(struct ap_queue *aq);
void ap_queue_suspend(struct ap_device *ap_dev);
void ap_queue_resume(struct ap_device *ap_dev);
struct ap_card *ap_card_create(int id, int queue_depth, int device_type,
unsigned int device_functions);
struct ap_card *ap_card_create(int id, int queue_depth, int raw_device_type,
int comp_device_type, unsigned int functions);
int ap_module_init(void);
void ap_module_exit(void);

12
drivers/s390/crypto/ap_card.c
View File

@@ -171,22 +171,20 @@ static void ap_card_device_release(struct device *dev)
kfree(ac);
}
struct ap_card *ap_card_create(int id, int queue_depth, int device_type,
unsigned int functions)
struct ap_card *ap_card_create(int id, int queue_depth, int raw_type,
int comp_type, unsigned int functions)
{
struct ap_card *ac;
ac = kzalloc(sizeof(*ac), GFP_KERNEL);
if (!ac)
return NULL;
INIT_LIST_HEAD(&ac->list);
INIT_LIST_HEAD(&ac->queues);
ac->ap_dev.device.release = ap_card_device_release;
ac->ap_dev.device.type = &ap_card_type;
ac->ap_dev.device_type = device_type;
/* CEX6 toleration: map to CEX5 */
if (device_type == AP_DEVICE_TYPE_CEX6)
ac->ap_dev.device_type = AP_DEVICE_TYPE_CEX5;
ac->raw_hwtype = device_type;
ac->ap_dev.device_type = comp_type;
ac->raw_hwtype = raw_type;
ac->queue_depth = queue_depth;
ac->functions = functions;
ac->id = id;

4
drivers/s390/crypto/ap_queue.c
View File

@@ -627,13 +627,11 @@ struct ap_queue *ap_queue_create(ap_qid_t qid, int device_type)
aq->ap_dev.device.release = ap_queue_device_release;
aq->ap_dev.device.type = &ap_queue_type;
aq->ap_dev.device_type = device_type;
/* CEX6 toleration: map to CEX5 */
if (device_type == AP_DEVICE_TYPE_CEX6)
aq->ap_dev.device_type = AP_DEVICE_TYPE_CEX5;
aq->qid = qid;
aq->state = AP_STATE_RESET_START;
aq->interrupt = AP_INTR_DISABLED;
spin_lock_init(&aq->lock);
INIT_LIST_HEAD(&aq->list);
INIT_LIST_HEAD(&aq->pendingq);
INIT_LIST_HEAD(&aq->requestq);
setup_timer(&aq->timeout, ap_request_timeout, (unsigned long) aq);

3
drivers/s390/crypto/pkey_api.c
View File

@@ -125,10 +125,9 @@ static int alloc_and_prep_cprbmem(size_t paramblen,
* allocate consecutive memory for request CPRB, request param
* block, reply CPRB and reply param block
*/
cprbmem = kmalloc(2 * cprbplusparamblen, GFP_KERNEL);
cprbmem = kzalloc(2 * cprbplusparamblen, GFP_KERNEL);
if (!cprbmem)
return -ENOMEM;
memset(cprbmem, 0, 2 * cprbplusparamblen);
preqcblk = (struct CPRBX *) cprbmem;
prepcblk = (struct CPRBX *) (cprbmem + cprbplusparamblen);

1
drivers/s390/crypto/zcrypt_api.h
View File

@@ -76,6 +76,7 @@ struct ica_z90_status {
#define ZCRYPT_CEX3A 8
#define ZCRYPT_CEX4 10
#define ZCRYPT_CEX5 11
#define ZCRYPT_CEX6 12
/**
* Large random numbers are pulled in 4096 byte chunks from the crypto cards

48
drivers/s390/crypto/zcrypt_cex4.c
View File

@@ -45,6 +45,8 @@ static struct ap_device_id zcrypt_cex4_card_ids[] = {
.match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
{ .dev_type = AP_DEVICE_TYPE_CEX5,
.match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
{ .dev_type = AP_DEVICE_TYPE_CEX6,
.match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
{ /* end of list */ },
};
@@ -55,6 +57,8 @@ static struct ap_device_id zcrypt_cex4_queue_ids[] = {
.match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
{ .dev_type = AP_DEVICE_TYPE_CEX5,
.match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
{ .dev_type = AP_DEVICE_TYPE_CEX6,
.match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
{ /* end of list */ },
};
@@ -72,17 +76,25 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
* MEX_1k, MEX_2k, MEX_4k, CRT_1k, CRT_2k, CRT_4k, RNG, SECKEY
*/
static const int CEX4A_SPEED_IDX[] = {
5, 6, 59, 20, 115, 581, 0, 0};
14, 19, 249, 42, 228, 1458, 0, 0};
static const int CEX5A_SPEED_IDX[] = {
3, 3, 6, 8, 32, 218, 0, 0};
8, 9, 20, 18, 66, 458, 0, 0};
static const int CEX6A_SPEED_IDX[] = {
6, 9, 20, 17, 65, 438, 0, 0};
static const int CEX4C_SPEED_IDX[] = {
24, 25, 82, 41, 138, 1111, 79, 8};
59, 69, 308, 83, 278, 2204, 209, 40};
static const int CEX5C_SPEED_IDX[] = {
10, 14, 23, 17, 45, 242, 63, 4};
24, 31, 50, 37, 90, 479, 27, 10};
static const int CEX6C_SPEED_IDX[] = {
16, 20, 32, 27, 77, 455, 23, 9};
static const int CEX4P_SPEED_IDX[] = {
142, 198, 1852, 203, 331, 1563, 0, 8};
224, 313, 3560, 359, 605, 2827, 0, 50};
static const int CEX5P_SPEED_IDX[] = {
49, 67, 131, 52, 85, 287, 0, 4};
63, 84, 156, 83, 142, 533, 0, 10};
static const int CEX6P_SPEED_IDX[] = {
55, 70, 121, 73, 129, 522, 0, 9};
struct ap_card *ac = to_ap_card(&ap_dev->device);
struct zcrypt_card *zc;
@@ -99,11 +111,16 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
zc->user_space_type = ZCRYPT_CEX4;
memcpy(zc->speed_rating, CEX4A_SPEED_IDX,
sizeof(CEX4A_SPEED_IDX));
} else {
} else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) {
zc->type_string = "CEX5A";
zc->user_space_type = ZCRYPT_CEX5;
memcpy(zc->speed_rating, CEX5A_SPEED_IDX,
sizeof(CEX5A_SPEED_IDX));
} else {
zc->type_string = "CEX6A";
zc->user_space_type = ZCRYPT_CEX6;
memcpy(zc->speed_rating, CEX6A_SPEED_IDX,
sizeof(CEX6A_SPEED_IDX));
}
zc->min_mod_size = CEX4A_MIN_MOD_SIZE;
if (ap_test_bit(&ac->functions, AP_FUNC_MEX4K) &&
@@ -125,7 +142,7 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
zc->user_space_type = ZCRYPT_CEX3C;
memcpy(zc->speed_rating, CEX4C_SPEED_IDX,
sizeof(CEX4C_SPEED_IDX));
} else {
} else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) {
zc->type_string = "CEX5C";
/* wrong user space type, must be CEX5
* just keep it for cca compatibility
@@ -133,6 +150,14 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
zc->user_space_type = ZCRYPT_CEX3C;
memcpy(zc->speed_rating, CEX5C_SPEED_IDX,
sizeof(CEX5C_SPEED_IDX));
} else {
zc->type_string = "CEX6C";
/* wrong user space type, must be CEX6
* just keep it for cca compatibility
*/
zc->user_space_type = ZCRYPT_CEX3C;
memcpy(zc->speed_rating, CEX6C_SPEED_IDX,
sizeof(CEX6C_SPEED_IDX));
}
zc->min_mod_size = CEX4C_MIN_MOD_SIZE;
zc->max_mod_size = CEX4C_MAX_MOD_SIZE;
@@ -143,11 +168,16 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
zc->user_space_type = ZCRYPT_CEX4;
memcpy(zc->speed_rating, CEX4P_SPEED_IDX,
sizeof(CEX4P_SPEED_IDX));
} else {
} else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) {
zc->type_string = "CEX5P";
zc->user_space_type = ZCRYPT_CEX5;
memcpy(zc->speed_rating, CEX5P_SPEED_IDX,
sizeof(CEX5P_SPEED_IDX));
} else {
zc->type_string = "CEX6P";
zc->user_space_type = ZCRYPT_CEX6;
memcpy(zc->speed_rating, CEX6P_SPEED_IDX,
sizeof(CEX6P_SPEED_IDX));
}
zc->min_mod_size = CEX4C_MIN_MOD_SIZE;
zc->max_mod_size = CEX4C_MAX_MOD_SIZE;

6
drivers/s390/crypto/zcrypt_msgtype50.c
View File

@@ -240,8 +240,7 @@ static int ICAMEX_msg_to_type50MEX_msg(struct zcrypt_queue *zq,
mod = meb2->modulus + sizeof(meb2->modulus) - mod_len;
exp = meb2->exponent + sizeof(meb2->exponent) - mod_len;
inp = meb2->message + sizeof(meb2->message) - mod_len;
} else {
/* mod_len > 256 = 4096 bit RSA Key */
} else if (mod_len <= 512) {
struct type50_meb3_msg *meb3 = ap_msg->message;
memset(meb3, 0, sizeof(*meb3));
ap_msg->length = sizeof(*meb3);
@@ -251,7 +250,8 @@ static int ICAMEX_msg_to_type50MEX_msg(struct zcrypt_queue *zq,
mod = meb3->modulus + sizeof(meb3->modulus) - mod_len;
exp = meb3->exponent + sizeof(meb3->exponent) - mod_len;
inp = meb3->message + sizeof(meb3->message) - mod_len;
}
} else
return -EINVAL;
if (copy_from_user(mod, mex->n_modulus, mod_len) ||
copy_from_user(exp, mex->b_key, mod_len) ||

3
drivers/s390/crypto/zcrypt_msgtype6.c
View File

@@ -474,7 +474,8 @@ static int XCRB_msg_to_type6CPRB_msgX(struct ap_message *ap_msg,
*fcode = (msg->hdr.function_code[0] << 8) | msg->hdr.function_code[1];
*dom = (unsigned short *)&msg->cprbx.domain;
if (memcmp(function_code, "US", 2) == 0)
if (memcmp(function_code, "US", 2) == 0
|| memcmp(function_code, "AU", 2) == 0)
ap_msg->special = 1;
else
ap_msg->special = 0;