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s390 updates for the 5.4 merge window #2 

- Fix 3 kasan findings.
 
  - Add PERF_EVENT_IOC_PERIOD ioctl support.
 
  - Add Crypto Express7S support and extend sysfs attributes for pkey.
 
  - Minor common I/O layer documentation corrections.
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Merge tag 's390-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull more s390 updates from Vasily Gorbik:

 - Fix three kasan findings

 - Add PERF_EVENT_IOC_PERIOD ioctl support

 - Add Crypto Express7S support and extend sysfs attributes for pkey

 - Minor common I/O layer documentation corrections

* tag 's390-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/cio: exclude subchannels with no parent from pseudo check
  s390/cio: avoid calling strlen on null pointer
  s390/topology: avoid firing events before kobjs are created
  s390/cpumf: Remove mixed white space
  s390/cpum_sf: Support ioctl PERF_EVENT_IOC_PERIOD
  s390/zcrypt: CEX7S exploitation support
  s390/cio: fix intparm documentation
  s390/pkey: Add sysfs attributes to emit AES CIPHER key blobs
This commit is contained in:
Linus Torvalds 2019-09-26 11:30:16 -07:00
parent ec56103e18 ab57588480
commit 16cdf08467
14 changed files with 334 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/s390/include/asm/cpu_mf.h
View File

@ -70,7 +70,7 @@ struct hws_qsi_info_block { /* Bit(s) */
unsigned long tear; /* 24-31: TEAR contents */
unsigned long dear; /* 32-39: DEAR contents */
unsigned int rsvrd0; /* 40-43: reserved */
unsigned int cpu_speed; /* 44-47: CPU speed */
unsigned int cpu_speed; /* 44-47: CPU speed */
unsigned long long rsvrd1; /* 48-55: reserved */
unsigned long long rsvrd2; /* 56-63: reserved */
} __packed;
@ -89,10 +89,10 @@ struct hws_lsctl_request_block {
unsigned long tear; /* 16-23: TEAR contents */
unsigned long dear; /* 24-31: DEAR contents */
/* 32-63: */
unsigned long rsvrd1; /* reserved */
unsigned long rsvrd2; /* reserved */
unsigned long rsvrd3; /* reserved */
unsigned long rsvrd4; /* reserved */
unsigned long rsvrd1; /* reserved */
unsigned long rsvrd2; /* reserved */
unsigned long rsvrd3; /* reserved */
unsigned long rsvrd4; /* reserved */
} __packed;
struct hws_basic_entry {

2
arch/s390/include/asm/perf_event.h
View File

@ -60,6 +60,7 @@ struct perf_sf_sde_regs {
#define PERF_CPUM_SF_MODE_MASK (PERF_CPUM_SF_BASIC_MODE| \
PERF_CPUM_SF_DIAG_MODE)
#define PERF_CPUM_SF_FULL_BLOCKS 0x0004 /* Process full SDBs only */
#define PERF_CPUM_SF_FREQ_MODE 0x0008 /* Sampling with frequency */
#define REG_NONE 0
#define REG_OVERFLOW 1
@ -70,5 +71,6 @@ struct perf_sf_sde_regs {
#define SAMPL_FLAGS(hwc) ((hwc)->config_base)
#define SAMPL_DIAG_MODE(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_DIAG_MODE)
#define SDB_FULL_BLOCKS(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_FULL_BLOCKS)
#define SAMPLE_FREQ_MODE(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_FREQ_MODE)
#endif /* _ASM_S390_PERF_EVENT_H */

4
arch/s390/include/uapi/asm/zcrypt.h
View File

@ -4,7 +4,7 @@
*
* zcrypt 2.2.1 (user-visible header)
*
* Copyright IBM Corp. 2001, 2018
* Copyright IBM Corp. 2001, 2019
* Author(s): Robert Burroughs
* Eric Rossman (edrossma@us.ibm.com)
*
@ -286,7 +286,7 @@ struct zcrypt_device_matrix_ext {
* 0x08: CEX3A
* 0x0a: CEX4
* 0x0b: CEX5
* 0x0c: CEX6
* 0x0c: CEX6 and CEX7
* 0x0d: device is disabled
*
* ZCRYPT_QDEPTH_MASK

165
arch/s390/kernel/perf_cpum_sf.c
View File

@ -673,13 +673,89 @@ out:
rcu_read_unlock();
}
static unsigned long getrate(bool freq, unsigned long sample,
struct hws_qsi_info_block *si)
{
unsigned long rate;
if (freq) {
rate = freq_to_sample_rate(si, sample);
rate = hw_limit_rate(si, rate);
} else {
/* The min/max sampling rates specifies the valid range
* of sample periods. If the specified sample period is
* out of range, limit the period to the range boundary.
*/
rate = hw_limit_rate(si, sample);
/* The perf core maintains a maximum sample rate that is
* configurable through the sysctl interface. Ensure the
* sampling rate does not exceed this value. This also helps
* to avoid throttling when pushing samples with
* perf_event_overflow().
*/
if (sample_rate_to_freq(si, rate) >
sysctl_perf_event_sample_rate) {
debug_sprintf_event(sfdbg, 1,
"Sampling rate exceeds maximum "
"perf sample rate\n");
rate = 0;
}
}
return rate;
}
/* The sampling information (si) contains information about the
* min/max sampling intervals and the CPU speed. So calculate the
* correct sampling interval and avoid the whole period adjust
* feedback loop.
*
* Since the CPU Measurement sampling facility can not handle frequency
* calculate the sampling interval when frequency is specified using
* this formula:
* interval := cpu_speed * 1000000 / sample_freq
*
* Returns errno on bad input and zero on success with parameter interval
* set to the correct sampling rate.
*
* Note: This function turns off freq bit to avoid calling function
* perf_adjust_period(). This causes frequency adjustment in the common
* code part which causes tremendous variations in the counter values.
*/
static int __hw_perf_event_init_rate(struct perf_event *event,
struct hws_qsi_info_block *si)
{
struct perf_event_attr *attr = &event->attr;
struct hw_perf_event *hwc = &event->hw;
unsigned long rate;
if (attr->freq) {
if (!attr->sample_freq)
return -EINVAL;
rate = getrate(attr->freq, attr->sample_freq, si);
attr->freq = 0; /* Don't call perf_adjust_period() */
SAMPL_FLAGS(hwc) |= PERF_CPUM_SF_FREQ_MODE;
} else {
rate = getrate(attr->freq, attr->sample_period, si);
if (!rate)
return -EINVAL;
}
attr->sample_period = rate;
SAMPL_RATE(hwc) = rate;
hw_init_period(hwc, SAMPL_RATE(hwc));
debug_sprintf_event(sfdbg, 4, "__hw_perf_event_init_rate:"
"cpu:%d period:%llx freq:%d,%#lx\n", event->cpu,
event->attr.sample_period, event->attr.freq,
SAMPLE_FREQ_MODE(hwc));
return 0;
}
static int __hw_perf_event_init(struct perf_event *event)
{
struct cpu_hw_sf *cpuhw;
struct hws_qsi_info_block si;
struct perf_event_attr *attr = &event->attr;
struct hw_perf_event *hwc = &event->hw;
unsigned long rate;
int cpu, err;
/* Reserve CPU-measurement sampling facility */
@ -745,43 +821,9 @@ static int __hw_perf_event_init(struct perf_event *event)
if (attr->config1 & PERF_CPUM_SF_FULL_BLOCKS)
SAMPL_FLAGS(hwc) |= PERF_CPUM_SF_FULL_BLOCKS;
/* The sampling information (si) contains information about the
* min/max sampling intervals and the CPU speed. So calculate the
* correct sampling interval and avoid the whole period adjust
* feedback loop.
*/
rate = 0;
if (attr->freq) {
if (!attr->sample_freq) {
err = -EINVAL;
goto out;
}
rate = freq_to_sample_rate(&si, attr->sample_freq);
rate = hw_limit_rate(&si, rate);
attr->freq = 0;
attr->sample_period = rate;
} else {
/* The min/max sampling rates specifies the valid range
* of sample periods. If the specified sample period is
* out of range, limit the period to the range boundary.
*/
rate = hw_limit_rate(&si, hwc->sample_period);
/* The perf core maintains a maximum sample rate that is
* configurable through the sysctl interface. Ensure the
* sampling rate does not exceed this value. This also helps
* to avoid throttling when pushing samples with
* perf_event_overflow().
*/
if (sample_rate_to_freq(&si, rate) >
sysctl_perf_event_sample_rate) {
err = -EINVAL;
debug_sprintf_event(sfdbg, 1, "Sampling rate exceeds maximum perf sample rate\n");
goto out;
}
}
SAMPL_RATE(hwc) = rate;
hw_init_period(hwc, SAMPL_RATE(hwc));
err = __hw_perf_event_init_rate(event, &si);
if (err)
goto out;
/* Initialize sample data overflow accounting */
hwc->extra_reg.reg = REG_OVERFLOW;
@ -904,6 +946,8 @@ static void cpumsf_pmu_enable(struct pmu *pmu)
if (sfb_has_pending_allocs(&cpuhw->sfb, hwc))
extend_sampling_buffer(&cpuhw->sfb, hwc);
}
/* Rate may be adjusted with ioctl() */
cpuhw->lsctl.interval = SAMPL_RATE(&cpuhw->event->hw);
}
/* (Re)enable the PMU and sampling facility */
@ -922,8 +966,9 @@ static void cpumsf_pmu_enable(struct pmu *pmu)
lpp(&S390_lowcore.lpp);
debug_sprintf_event(sfdbg, 6, "pmu_enable: es=%i cs=%i ed=%i cd=%i "
"tear=%p dear=%p\n", cpuhw->lsctl.es,
cpuhw->lsctl.cs, cpuhw->lsctl.ed, cpuhw->lsctl.cd,
"interval:%lx tear=%p dear=%p\n",
cpuhw->lsctl.es, cpuhw->lsctl.cs, cpuhw->lsctl.ed,
cpuhw->lsctl.cd, cpuhw->lsctl.interval,
(void *) cpuhw->lsctl.tear,
(void *) cpuhw->lsctl.dear);
}
@ -1717,6 +1762,44 @@ static void cpumsf_pmu_read(struct perf_event *event)
/* Nothing to do ... updates are interrupt-driven */
}
/* Check if the new sampling period/freqeuncy is appropriate.
*
* Return non-zero on error and zero on passed checks.
*/
static int cpumsf_pmu_check_period(struct perf_event *event, u64 value)
{
struct hws_qsi_info_block si;
unsigned long rate;
bool do_freq;
memset(&si, 0, sizeof(si));
if (event->cpu == -1) {
if (qsi(&si))
return -ENODEV;
} else {
/* Event is pinned to a particular CPU, retrieve the per-CPU
* sampling structure for accessing the CPU-specific QSI.
*/
struct cpu_hw_sf *cpuhw = &per_cpu(cpu_hw_sf, event->cpu);
si = cpuhw->qsi;
}
do_freq = !!SAMPLE_FREQ_MODE(&event->hw);
rate = getrate(do_freq, value, &si);
if (!rate)
return -EINVAL;
event->attr.sample_period = rate;
SAMPL_RATE(&event->hw) = rate;
hw_init_period(&event->hw, SAMPL_RATE(&event->hw));
debug_sprintf_event(sfdbg, 4, "cpumsf_pmu_check_period:"
"cpu:%d value:%llx period:%llx freq:%d\n",
event->cpu, value,
event->attr.sample_period, do_freq);
return 0;
}
/* Activate sampling control.
* Next call of pmu_enable() starts sampling.
*/
@ -1908,6 +1991,8 @@ static struct pmu cpumf_sampling = {
.setup_aux = aux_buffer_setup,
.free_aux = aux_buffer_free,
.check_period = cpumsf_pmu_check_period,
};
static void cpumf_measurement_alert(struct ext_code ext_code,

3
arch/s390/kernel/topology.c
View File

@ -311,7 +311,8 @@ int arch_update_cpu_topology(void)
on_each_cpu(__arch_update_dedicated_flag, NULL, 0);
for_each_online_cpu(cpu) {
dev = get_cpu_device(cpu);
kobject_uevent(&dev->kobj, KOBJ_CHANGE);
if (dev)
kobject_uevent(&dev->kobj, KOBJ_CHANGE);
}
return rc;
}

2
drivers/s390/cio/ccwgroup.c
View File

@ -372,7 +372,7 @@ int ccwgroup_create_dev(struct device *parent, struct ccwgroup_driver *gdrv,
goto error;
}
/* Check for trailing stuff. */
if (i == num_devices && strlen(buf) > 0) {
if (i == num_devices && buf && strlen(buf) > 0) {
rc = -EINVAL;
goto error;
}

2
drivers/s390/cio/css.c
View File

@ -1388,6 +1388,8 @@ device_initcall(cio_settle_init);
int sch_is_pseudo_sch(struct subchannel *sch)
{
if (!sch->dev.parent)
return 0;
return sch == to_css(sch->dev.parent)->pseudo_subchannel;
}

23
drivers/s390/cio/device_ops.c
View File

@ -124,9 +124,7 @@ EXPORT_SYMBOL(ccw_device_is_multipath);
/**
* ccw_device_clear() - terminate I/O request processing
* @cdev: target ccw device
* @intparm: interruption parameter; value is only used if no I/O is
* outstanding, otherwise the intparm associated with the I/O request
* is returned
* @intparm: interruption parameter to be returned upon conclusion of csch
*
* ccw_device_clear() calls csch on @cdev's subchannel.
* Returns:
@ -179,6 +177,9 @@ int ccw_device_clear(struct ccw_device *cdev, unsigned long intparm)
* completed during the time specified by @expires. If a timeout occurs, the
* channel program is terminated via xsch, hsch or csch, and the device's
* interrupt handler will be called with an irb containing ERR_PTR(-%ETIMEDOUT).
* The interruption handler will echo back the @intparm specified here, unless
* another interruption parameter is specified by a subsequent invocation of
* ccw_device_halt() or ccw_device_clear().
* Returns:
* %0, if the operation was successful;
* -%EBUSY, if the device is busy, or status pending;
@ -256,6 +257,9 @@ int ccw_device_start_timeout_key(struct ccw_device *cdev, struct ccw1 *cpa,
* Start a S/390 channel program. When the interrupt arrives, the
* IRQ handler is called, either immediately, delayed (dev-end missing,
* or sense required) or never (no IRQ handler registered).
* The interruption handler will echo back the @intparm specified here, unless
* another interruption parameter is specified by a subsequent invocation of
* ccw_device_halt() or ccw_device_clear().
* Returns:
* %0, if the operation was successful;
* -%EBUSY, if the device is busy, or status pending;
@ -287,6 +291,9 @@ int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
* Start a S/390 channel program. When the interrupt arrives, the
* IRQ handler is called, either immediately, delayed (dev-end missing,
* or sense required) or never (no IRQ handler registered).
* The interruption handler will echo back the @intparm specified here, unless
* another interruption parameter is specified by a subsequent invocation of
* ccw_device_halt() or ccw_device_clear().
* Returns:
* %0, if the operation was successful;
* -%EBUSY, if the device is busy, or status pending;
@ -322,6 +329,9 @@ int ccw_device_start(struct ccw_device *cdev, struct ccw1 *cpa,
* completed during the time specified by @expires. If a timeout occurs, the
* channel program is terminated via xsch, hsch or csch, and the device's
* interrupt handler will be called with an irb containing ERR_PTR(-%ETIMEDOUT).
* The interruption handler will echo back the @intparm specified here, unless
* another interruption parameter is specified by a subsequent invocation of
* ccw_device_halt() or ccw_device_clear().
* Returns:
* %0, if the operation was successful;
* -%EBUSY, if the device is busy, or status pending;
@ -343,11 +353,12 @@ int ccw_device_start_timeout(struct ccw_device *cdev, struct ccw1 *cpa,
/**
* ccw_device_halt() - halt I/O request processing
* @cdev: target ccw device
* @intparm: interruption parameter; value is only used if no I/O is
* outstanding, otherwise the intparm associated with the I/O request
* is returned
* @intparm: interruption parameter to be returned upon conclusion of hsch
*
* ccw_device_halt() calls hsch on @cdev's subchannel.
* The interruption handler will echo back the @intparm specified here, unless
* another interruption parameter is specified by a subsequent invocation of
* ccw_device_clear().
* Returns:
* %0 on success,
* -%ENODEV on device not operational,

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

@ -1322,24 +1322,24 @@ static int ap_get_compatible_type(ap_qid_t qid, int rawtype, unsigned int func)
/* < 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)
/* up to CEX7 known and fully supported */
if (rawtype <= AP_DEVICE_TYPE_CEX7)
return rawtype;
/*
* unknown new type > CEX6, check for compatibility
* unknown new type > CEX7, check for compatibility
* to the highest known and supported type which is
* currently CEX6 with the help of the QACT function.
* currently CEX7 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;
apinfo.cat = AP_DEVICE_TYPE_CEX7;
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)
&& apinfo.cat <= AP_DEVICE_TYPE_CEX7)
comp_type = apinfo.cat;
}
if (!comp_type)

3
drivers/s390/crypto/ap_bus.h
View File

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright IBM Corp. 2006, 2012
* Copyright IBM Corp. 2006, 2019
* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
* Ralph Wuerthner <rwuerthn@de.ibm.com>
@ -63,6 +63,7 @@ static inline int ap_test_bit(unsigned int *ptr, unsigned int nr)
#define AP_DEVICE_TYPE_CEX4 10
#define AP_DEVICE_TYPE_CEX5 11
#define AP_DEVICE_TYPE_CEX6 12
#define AP_DEVICE_TYPE_CEX7 13
/*
* Known function facilities

113
drivers/s390/crypto/pkey_api.c
View File

@ -1363,9 +1363,122 @@ static struct attribute_group ccadata_attr_group = {
.bin_attrs = ccadata_attrs,
};
#define CCACIPHERTOKENSIZE (sizeof(struct cipherkeytoken) + 80)
/*
* Sysfs attribute read function for all secure key ccacipher binary attributes.
* The implementation can not deal with partial reads, because a new random
* secure key blob is generated with each read. In case of partial reads
* (i.e. off != 0 or count < key blob size) -EINVAL is returned.
*/
static ssize_t pkey_ccacipher_aes_attr_read(enum pkey_key_size keybits,
bool is_xts, char *buf, loff_t off,
size_t count)
{
size_t keysize;
int rc;
if (off != 0 || count < CCACIPHERTOKENSIZE)
return -EINVAL;
if (is_xts)
if (count < 2 * CCACIPHERTOKENSIZE)
return -EINVAL;
keysize = CCACIPHERTOKENSIZE;
rc = cca_gencipherkey(-1, -1, keybits, 0, buf, &keysize);
if (rc)
return rc;
memset(buf + keysize, 0, CCACIPHERTOKENSIZE - keysize);
if (is_xts) {
keysize = CCACIPHERTOKENSIZE;
rc = cca_gencipherkey(-1, -1, keybits, 0,
buf + CCACIPHERTOKENSIZE, &keysize);
if (rc)
return rc;
memset(buf + CCACIPHERTOKENSIZE + keysize, 0,
CCACIPHERTOKENSIZE - keysize);
return 2 * CCACIPHERTOKENSIZE;
}
return CCACIPHERTOKENSIZE;
}
static ssize_t ccacipher_aes_128_read(struct file *filp,
struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off,
size_t count)
{
return pkey_ccacipher_aes_attr_read(PKEY_SIZE_AES_128, false, buf,
off, count);
}
static ssize_t ccacipher_aes_192_read(struct file *filp,
struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off,
size_t count)
{
return pkey_ccacipher_aes_attr_read(PKEY_SIZE_AES_192, false, buf,
off, count);
}
static ssize_t ccacipher_aes_256_read(struct file *filp,
struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off,
size_t count)
{
return pkey_ccacipher_aes_attr_read(PKEY_SIZE_AES_256, false, buf,
off, count);
}
static ssize_t ccacipher_aes_128_xts_read(struct file *filp,
struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off,
size_t count)
{
return pkey_ccacipher_aes_attr_read(PKEY_SIZE_AES_128, true, buf,
off, count);
}
static ssize_t ccacipher_aes_256_xts_read(struct file *filp,
struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off,
size_t count)
{
return pkey_ccacipher_aes_attr_read(PKEY_SIZE_AES_256, true, buf,
off, count);
}
static BIN_ATTR_RO(ccacipher_aes_128, CCACIPHERTOKENSIZE);
static BIN_ATTR_RO(ccacipher_aes_192, CCACIPHERTOKENSIZE);
static BIN_ATTR_RO(ccacipher_aes_256, CCACIPHERTOKENSIZE);
static BIN_ATTR_RO(ccacipher_aes_128_xts, 2 * CCACIPHERTOKENSIZE);
static BIN_ATTR_RO(ccacipher_aes_256_xts, 2 * CCACIPHERTOKENSIZE);
static struct bin_attribute *ccacipher_attrs[] = {
&bin_attr_ccacipher_aes_128,
&bin_attr_ccacipher_aes_192,
&bin_attr_ccacipher_aes_256,
&bin_attr_ccacipher_aes_128_xts,
&bin_attr_ccacipher_aes_256_xts,
NULL
};
static struct attribute_group ccacipher_attr_group = {
.name = "ccacipher",
.bin_attrs = ccacipher_attrs,
};
static const struct attribute_group *pkey_attr_groups[] = {
&protkey_attr_group,
&ccadata_attr_group,
&ccacipher_attr_group,
NULL,
};

2
drivers/s390/crypto/vfio_ap_drv.c
View File

@ -36,6 +36,8 @@ static struct ap_device_id ap_queue_ids[] = {
.match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
{ .dev_type = AP_DEVICE_TYPE_CEX6,
.match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
{ .dev_type = AP_DEVICE_TYPE_CEX7,
.match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
{ /* end of sibling */ },
};

3
drivers/s390/crypto/zcrypt_api.h
View File

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright IBM Corp. 2001, 2018
* Copyright IBM Corp. 2001, 2019
* Author(s): Robert Burroughs
* Eric Rossman (edrossma@us.ibm.com)
* Cornelia Huck <cornelia.huck@de.ibm.com>
@ -29,6 +29,7 @@
#define ZCRYPT_CEX4 10
#define ZCRYPT_CEX5 11
#define ZCRYPT_CEX6 12
#define ZCRYPT_CEX7 13
/**
* Large random numbers are pulled in 4096 byte chunks from the crypto cards

72
drivers/s390/crypto/zcrypt_cex4.c
View File

@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright IBM Corp. 2012
* Copyright IBM Corp. 2012, 2019
* Author(s): Holger Dengler <hd@linux.vnet.ibm.com>
*/
@ -38,8 +38,8 @@
#define CEX4_CLEANUP_TIME (900*HZ)
MODULE_AUTHOR("IBM Corporation");
MODULE_DESCRIPTION("CEX4/CEX5/CEX6 Cryptographic Card device driver, " \
"Copyright IBM Corp. 2018");
MODULE_DESCRIPTION("CEX4/CEX5/CEX6/CEX7 Cryptographic Card device driver, " \
"Copyright IBM Corp. 2019");
MODULE_LICENSE("GPL");
static struct ap_device_id zcrypt_cex4_card_ids[] = {
@ -49,6 +49,8 @@ static struct ap_device_id zcrypt_cex4_card_ids[] = {
.match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
{ .dev_type = AP_DEVICE_TYPE_CEX6,
.match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
{ .dev_type = AP_DEVICE_TYPE_CEX7,
.match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
{ /* end of list */ },
};
@ -61,6 +63,8 @@ static struct ap_device_id zcrypt_cex4_queue_ids[] = {
.match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
{ .dev_type = AP_DEVICE_TYPE_CEX6,
.match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
{ .dev_type = AP_DEVICE_TYPE_CEX7,
.match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
{ /* end of list */ },
};
@ -146,7 +150,7 @@ static const struct attribute_group cca_queue_attr_group = {
};
/**
* Probe function for CEX4/CEX5/CEX6 card device. It always
* Probe function for CEX4/CEX5/CEX6/CEX7 card device. It always
* accepts the AP device since the bus_match already checked
* the hardware type.
* @ap_dev: pointer to the AP device.
@ -158,25 +162,31 @@ 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[] = {
14, 19, 249, 42, 228, 1458, 0, 0};
14, 19, 249, 42, 228, 1458, 0, 0};
static const int CEX5A_SPEED_IDX[] = {
8, 9, 20, 18, 66, 458, 0, 0};
8, 9, 20, 18, 66, 458, 0, 0};
static const int CEX6A_SPEED_IDX[] = {
6, 9, 20, 17, 65, 438, 0, 0};
6, 9, 20, 17, 65, 438, 0, 0};
static const int CEX7A_SPEED_IDX[] = {
6, 8, 17, 15, 54, 362, 0, 0};
static const int CEX4C_SPEED_IDX[] = {
59, 69, 308, 83, 278, 2204, 209, 40};
static const int CEX5C_SPEED_IDX[] = {
24, 31, 50, 37, 90, 479, 27, 10};
24, 31, 50, 37, 90, 479, 27, 10};
static const int CEX6C_SPEED_IDX[] = {
16, 20, 32, 27, 77, 455, 23, 9};
16, 20, 32, 27, 77, 455, 24, 9};
static const int CEX7C_SPEED_IDX[] = {
14, 16, 26, 23, 64, 376, 23, 8};
static const int CEX4P_SPEED_IDX[] = {
224, 313, 3560, 359, 605, 2827, 0, 50};
0, 0, 0, 0, 0, 0, 0, 50};
static const int CEX5P_SPEED_IDX[] = {
63, 84, 156, 83, 142, 533, 0, 10};
0, 0, 0, 0, 0, 0, 0, 10};
static const int CEX6P_SPEED_IDX[] = {
55, 70, 121, 73, 129, 522, 0, 9};
0, 0, 0, 0, 0, 0, 0, 9};
static const int CEX7P_SPEED_IDX[] = {
0, 0, 0, 0, 0, 0, 0, 8};
struct ap_card *ac = to_ap_card(&ap_dev->device);
struct zcrypt_card *zc;
@ -198,11 +208,19 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
zc->user_space_type = ZCRYPT_CEX5;
memcpy(zc->speed_rating, CEX5A_SPEED_IDX,
sizeof(CEX5A_SPEED_IDX));
} else {
} else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) {
zc->type_string = "CEX6A";
zc->user_space_type = ZCRYPT_CEX6;
memcpy(zc->speed_rating, CEX6A_SPEED_IDX,
sizeof(CEX6A_SPEED_IDX));
} else {
zc->type_string = "CEX7A";
/* wrong user space type, just for compatibility
* with the ZCRYPT_STATUS_MASK ioctl.
*/
zc->user_space_type = ZCRYPT_CEX6;
memcpy(zc->speed_rating, CEX7A_SPEED_IDX,
sizeof(CEX7A_SPEED_IDX));
}
zc->min_mod_size = CEX4A_MIN_MOD_SIZE;
if (ap_test_bit(&ac->functions, AP_FUNC_MEX4K) &&
@ -232,7 +250,7 @@ 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 {
} else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) {
zc->type_string = "CEX6C";
/* wrong user space type, must be CEX6
* just keep it for cca compatibility
@ -240,6 +258,14 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
zc->user_space_type = ZCRYPT_CEX3C;
memcpy(zc->speed_rating, CEX6C_SPEED_IDX,
sizeof(CEX6C_SPEED_IDX));
} else {
zc->type_string = "CEX7C";
/* wrong user space type, must be CEX7
* just keep it for cca compatibility
*/
zc->user_space_type = ZCRYPT_CEX3C;
memcpy(zc->speed_rating, CEX7C_SPEED_IDX,
sizeof(CEX7C_SPEED_IDX));
}
zc->min_mod_size = CEX4C_MIN_MOD_SIZE;
zc->max_mod_size = CEX4C_MAX_MOD_SIZE;
@ -255,11 +281,19 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
zc->user_space_type = ZCRYPT_CEX5;
memcpy(zc->speed_rating, CEX5P_SPEED_IDX,
sizeof(CEX5P_SPEED_IDX));
} else {
} else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX6) {
zc->type_string = "CEX6P";
zc->user_space_type = ZCRYPT_CEX6;
memcpy(zc->speed_rating, CEX6P_SPEED_IDX,
sizeof(CEX6P_SPEED_IDX));
} else {
zc->type_string = "CEX7P";
/* wrong user space type, just for compatibility
* with the ZCRYPT_STATUS_MASK ioctl.
*/
zc->user_space_type = ZCRYPT_CEX6;
memcpy(zc->speed_rating, CEX7P_SPEED_IDX,
sizeof(CEX7P_SPEED_IDX));
}
zc->min_mod_size = CEX4C_MIN_MOD_SIZE;
zc->max_mod_size = CEX4C_MAX_MOD_SIZE;
@ -289,8 +323,8 @@ out:
}
/**
* This is called to remove the CEX4/CEX5/CEX6 card driver information
* if an AP card device is removed.
* This is called to remove the CEX4/CEX5/CEX6/CEX7 card driver
* information if an AP card device is removed.
*/
static void zcrypt_cex4_card_remove(struct ap_device *ap_dev)
{
@ -311,7 +345,7 @@ static struct ap_driver zcrypt_cex4_card_driver = {
};
/**
* Probe function for CEX4/CEX5/CEX6 queue device. It always
* Probe function for CEX4/CEX5/CEX6/CEX7 queue device. It always
* accepts the AP device since the bus_match already checked
* the hardware type.
* @ap_dev: pointer to the AP device.
@ -369,7 +403,7 @@ out:
}
/**
* This is called to remove the CEX4/CEX5/CEX6 queue driver
* This is called to remove the CEX4/CEX5/CEX6/CEX7 queue driver
* information if an AP queue device is removed.
*/
static void zcrypt_cex4_queue_remove(struct ap_device *ap_dev)