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-rw-r--r--drivers/s390/crypto/ap_bus.c67
-rw-r--r--drivers/s390/crypto/ap_bus.h2
-rw-r--r--drivers/s390/crypto/zcrypt_api.c13
-rw-r--r--drivers/s390/crypto/zcrypt_api.h1
-rw-r--r--drivers/s390/crypto/zcrypt_cex2a.c82
-rw-r--r--drivers/s390/crypto/zcrypt_cex2a.h25
-rw-r--r--drivers/s390/crypto/zcrypt_pcica.c1
-rw-r--r--drivers/s390/crypto/zcrypt_pcicc.c1
-rw-r--r--drivers/s390/crypto/zcrypt_pcixcc.c17
9 files changed, 187 insertions, 22 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 8fd8c62455e9..67302b944ab3 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -27,6 +27,7 @@
#define KMSG_COMPONENT "ap"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
@@ -154,7 +155,7 @@ static inline int ap_instructions_available(void)
*/
static int ap_interrupts_available(void)
{
- return test_facility(1) && test_facility(2);
+ return test_facility(2) && test_facility(65);
}
/**
@@ -221,6 +222,69 @@ ap_queue_interruption_control(ap_qid_t qid, void *ind)
}
#endif
+static inline struct ap_queue_status __ap_4096_commands_available(ap_qid_t qid,
+ int *support)
+{
+ register unsigned long reg0 asm ("0") = 0UL | qid | (1UL << 23);
+ register struct ap_queue_status reg1 asm ("1");
+ register unsigned long reg2 asm ("2") = 0UL;
+
+ asm volatile(
+ ".long 0xb2af0000\n"
+ "0: la %1,0\n"
+ "1:\n"
+ EX_TABLE(0b, 1b)
+ : "+d" (reg0), "=d" (reg1), "=d" (reg2)
+ :
+ : "cc");
+
+ if (reg2 & 0x6000000000000000ULL)
+ *support = 1;
+ else
+ *support = 0;
+
+ return reg1;
+}
+
+/**
+ * ap_4096_commands_availablen(): Check for availability of 4096 bit RSA
+ * support.
+ * @qid: The AP queue number
+ *
+ * Returns 1 if 4096 bit RSA keys are support fo the AP, returns 0 if not.
+ */
+int ap_4096_commands_available(ap_qid_t qid)
+{
+ struct ap_queue_status status;
+ int i, support = 0;
+ status = __ap_4096_commands_available(qid, &support);
+
+ for (i = 0; i < AP_MAX_RESET; i++) {
+ switch (status.response_code) {
+ case AP_RESPONSE_NORMAL:
+ return support;
+ case AP_RESPONSE_RESET_IN_PROGRESS:
+ case AP_RESPONSE_BUSY:
+ break;
+ case AP_RESPONSE_Q_NOT_AVAIL:
+ case AP_RESPONSE_DECONFIGURED:
+ case AP_RESPONSE_CHECKSTOPPED:
+ case AP_RESPONSE_INVALID_ADDRESS:
+ return 0;
+ case AP_RESPONSE_OTHERWISE_CHANGED:
+ break;
+ default:
+ break;
+ }
+ if (i < AP_MAX_RESET - 1) {
+ udelay(5);
+ status = __ap_4096_commands_available(qid, &support);
+ }
+ }
+ return support;
+}
+EXPORT_SYMBOL(ap_4096_commands_available);
+
/**
* ap_queue_enable_interruption(): Enable interruption on an AP.
* @qid: The AP queue number
@@ -1042,6 +1106,7 @@ out:
static void ap_interrupt_handler(void *unused1, void *unused2)
{
+ kstat_cpu(smp_processor_id()).irqs[IOINT_APB]++;
tasklet_schedule(&ap_tasklet);
}
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
index 4785d07cd447..08b9738285b4 100644
--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -196,4 +196,6 @@ void ap_flush_queue(struct ap_device *ap_dev);
int ap_module_init(void);
void ap_module_exit(void);
+int ap_4096_commands_available(ap_qid_t qid);
+
#endif /* _AP_BUS_H_ */
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index f5221749d180..8e65447f76b7 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -35,7 +35,6 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/compat.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <asm/atomic.h>
#include <asm/uaccess.h>
@@ -397,8 +396,15 @@ static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt)
if (copied == 0) {
unsigned int len;
spin_unlock_bh(&zcrypt_device_lock);
- /* len is max 256 / 2 - 120 = 8 */
- len = crt->inputdatalength / 2 - 120;
+ /* len is max 256 / 2 - 120 = 8
+ * For bigger device just assume len of leading
+ * 0s is 8 as stated in the requirements for
+ * ica_rsa_modexpo_crt struct in zcrypt.h.
+ */
+ if (crt->inputdatalength <= 256)
+ len = crt->inputdatalength / 2 - 120;
+ else
+ len = 8;
if (len > sizeof(z1))
return -EFAULT;
z1 = z2 = z3 = 0;
@@ -406,6 +412,7 @@ static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt)
copy_from_user(&z2, crt->bp_key, len) ||
copy_from_user(&z3, crt->u_mult_inv, len))
return -EFAULT;
+ z1 = z2 = z3 = 0;
copied = 1;
/*
* We have to restart device lookup -
diff --git a/drivers/s390/crypto/zcrypt_api.h b/drivers/s390/crypto/zcrypt_api.h
index 8e7ffbf2466c..88ebd114735b 100644
--- a/drivers/s390/crypto/zcrypt_api.h
+++ b/drivers/s390/crypto/zcrypt_api.h
@@ -109,6 +109,7 @@ struct zcrypt_device {
int request_count; /* # current requests. */
struct ap_message reply; /* Per-device reply structure. */
+ int max_exp_bit_length;
};
struct zcrypt_device *zcrypt_device_alloc(size_t);
diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c
index 9c409efa1ecf..2176d00b395e 100644
--- a/drivers/s390/crypto/zcrypt_cex2a.c
+++ b/drivers/s390/crypto/zcrypt_cex2a.c
@@ -41,7 +41,7 @@
#define CEX2A_MIN_MOD_SIZE 1 /* 8 bits */
#define CEX2A_MAX_MOD_SIZE 256 /* 2048 bits */
#define CEX3A_MIN_MOD_SIZE CEX2A_MIN_MOD_SIZE
-#define CEX3A_MAX_MOD_SIZE CEX2A_MAX_MOD_SIZE
+#define CEX3A_MAX_MOD_SIZE 512 /* 4096 bits */
#define CEX2A_SPEED_RATING 970
#define CEX3A_SPEED_RATING 900 /* Fixme: Needs finetuning */
@@ -49,8 +49,10 @@
#define CEX2A_MAX_MESSAGE_SIZE 0x390 /* sizeof(struct type50_crb2_msg) */
#define CEX2A_MAX_RESPONSE_SIZE 0x110 /* max outputdatalength + type80_hdr */
-#define CEX3A_MAX_MESSAGE_SIZE CEX2A_MAX_MESSAGE_SIZE
-#define CEX3A_MAX_RESPONSE_SIZE CEX2A_MAX_RESPONSE_SIZE
+#define CEX3A_MAX_RESPONSE_SIZE 0x210 /* 512 bit modulus
+ * (max outputdatalength) +
+ * type80_hdr*/
+#define CEX3A_MAX_MESSAGE_SIZE sizeof(struct type50_crb3_msg)
#define CEX2A_CLEANUP_TIME (15*HZ)
#define CEX3A_CLEANUP_TIME CEX2A_CLEANUP_TIME
@@ -110,7 +112,7 @@ static int ICAMEX_msg_to_type50MEX_msg(struct zcrypt_device *zdev,
mod = meb1->modulus + sizeof(meb1->modulus) - mod_len;
exp = meb1->exponent + sizeof(meb1->exponent) - mod_len;
inp = meb1->message + sizeof(meb1->message) - mod_len;
- } else {
+ } else if (mod_len <= 256) {
struct type50_meb2_msg *meb2 = ap_msg->message;
memset(meb2, 0, sizeof(*meb2));
ap_msg->length = sizeof(*meb2);
@@ -120,6 +122,17 @@ static int ICAMEX_msg_to_type50MEX_msg(struct zcrypt_device *zdev,
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 */
+ struct type50_meb3_msg *meb3 = ap_msg->message;
+ memset(meb3, 0, sizeof(*meb3));
+ ap_msg->length = sizeof(*meb3);
+ meb3->header.msg_type_code = TYPE50_TYPE_CODE;
+ meb3->header.msg_len = sizeof(*meb3);
+ meb3->keyblock_type = TYPE50_MEB3_FMT;
+ mod = meb3->modulus + sizeof(meb3->modulus) - mod_len;
+ exp = meb3->exponent + sizeof(meb3->exponent) - mod_len;
+ inp = meb3->message + sizeof(meb3->message) - mod_len;
}
if (copy_from_user(mod, mex->n_modulus, mod_len) ||
@@ -142,7 +155,7 @@ static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_device *zdev,
struct ap_message *ap_msg,
struct ica_rsa_modexpo_crt *crt)
{
- int mod_len, short_len, long_len, long_offset;
+ int mod_len, short_len, long_len, long_offset, limit;
unsigned char *p, *q, *dp, *dq, *u, *inp;
mod_len = crt->inputdatalength;
@@ -152,14 +165,20 @@ static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_device *zdev,
/*
* CEX2A cannot handle p, dp, or U > 128 bytes.
* If we have one of these, we need to do extra checking.
+ * For CEX3A the limit is 256 bytes.
*/
- if (long_len > 128) {
+ if (zdev->max_mod_size == CEX3A_MAX_MOD_SIZE)
+ limit = 256;
+ else
+ limit = 128;
+
+ if (long_len > limit) {
/*
* zcrypt_rsa_crt already checked for the leading
* zeroes of np_prime, bp_key and u_mult_inc.
*/
- long_offset = long_len - 128;
- long_len = 128;
+ long_offset = long_len - limit;
+ long_len = limit;
} else
long_offset = 0;
@@ -180,7 +199,7 @@ static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_device *zdev,
dq = crb1->dq + sizeof(crb1->dq) - short_len;
u = crb1->u + sizeof(crb1->u) - long_len;
inp = crb1->message + sizeof(crb1->message) - mod_len;
- } else {
+ } else if (long_len <= 128) {
struct type50_crb2_msg *crb2 = ap_msg->message;
memset(crb2, 0, sizeof(*crb2));
ap_msg->length = sizeof(*crb2);
@@ -193,6 +212,20 @@ static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_device *zdev,
dq = crb2->dq + sizeof(crb2->dq) - short_len;
u = crb2->u + sizeof(crb2->u) - long_len;
inp = crb2->message + sizeof(crb2->message) - mod_len;
+ } else {
+ /* long_len >= 256 */
+ struct type50_crb3_msg *crb3 = ap_msg->message;
+ memset(crb3, 0, sizeof(*crb3));
+ ap_msg->length = sizeof(*crb3);
+ crb3->header.msg_type_code = TYPE50_TYPE_CODE;
+ crb3->header.msg_len = sizeof(*crb3);
+ crb3->keyblock_type = TYPE50_CRB3_FMT;
+ p = crb3->p + sizeof(crb3->p) - long_len;
+ q = crb3->q + sizeof(crb3->q) - short_len;
+ dp = crb3->dp + sizeof(crb3->dp) - long_len;
+ dq = crb3->dq + sizeof(crb3->dq) - short_len;
+ u = crb3->u + sizeof(crb3->u) - long_len;
+ inp = crb3->message + sizeof(crb3->message) - mod_len;
}
if (copy_from_user(p, crt->np_prime + long_offset, long_len) ||
@@ -203,7 +236,6 @@ static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_device *zdev,
copy_from_user(inp, crt->inputdata, mod_len))
return -EFAULT;
-
return 0;
}
@@ -230,7 +262,10 @@ static int convert_type80(struct zcrypt_device *zdev,
zdev->online = 0;
return -EAGAIN; /* repeat the request on a different device. */
}
- BUG_ON(t80h->len > CEX2A_MAX_RESPONSE_SIZE);
+ if (zdev->user_space_type == ZCRYPT_CEX2A)
+ BUG_ON(t80h->len > CEX2A_MAX_RESPONSE_SIZE);
+ else
+ BUG_ON(t80h->len > CEX3A_MAX_RESPONSE_SIZE);
data = reply->message + t80h->len - outputdatalength;
if (copy_to_user(outputdata, data, outputdatalength))
return -EFAULT;
@@ -282,7 +317,10 @@ static void zcrypt_cex2a_receive(struct ap_device *ap_dev,
}
t80h = reply->message;
if (t80h->type == TYPE80_RSP_CODE) {
- length = min(CEX2A_MAX_RESPONSE_SIZE, (int) t80h->len);
+ if (ap_dev->device_type == AP_DEVICE_TYPE_CEX2A)
+ length = min(CEX2A_MAX_RESPONSE_SIZE, (int) t80h->len);
+ else
+ length = min(CEX3A_MAX_RESPONSE_SIZE, (int) t80h->len);
memcpy(msg->message, reply->message, length);
} else
memcpy(msg->message, reply->message, sizeof error_reply);
@@ -307,7 +345,10 @@ static long zcrypt_cex2a_modexpo(struct zcrypt_device *zdev,
int rc;
ap_init_message(&ap_msg);
- ap_msg.message = kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
+ if (zdev->user_space_type == ZCRYPT_CEX2A)
+ ap_msg.message = kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
+ else
+ ap_msg.message = kmalloc(CEX3A_MAX_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
@@ -345,7 +386,10 @@ static long zcrypt_cex2a_modexpo_crt(struct zcrypt_device *zdev,
int rc;
ap_init_message(&ap_msg);
- ap_msg.message = kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
+ if (zdev->user_space_type == ZCRYPT_CEX2A)
+ ap_msg.message = kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
+ else
+ ap_msg.message = kmalloc(CEX3A_MAX_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
@@ -397,6 +441,7 @@ static int zcrypt_cex2a_probe(struct ap_device *ap_dev)
zdev->max_mod_size = CEX2A_MAX_MOD_SIZE;
zdev->short_crt = 1;
zdev->speed_rating = CEX2A_SPEED_RATING;
+ zdev->max_exp_bit_length = CEX2A_MAX_MOD_SIZE;
break;
case AP_DEVICE_TYPE_CEX3A:
zdev = zcrypt_device_alloc(CEX3A_MAX_RESPONSE_SIZE);
@@ -404,8 +449,13 @@ static int zcrypt_cex2a_probe(struct ap_device *ap_dev)
return -ENOMEM;
zdev->user_space_type = ZCRYPT_CEX3A;
zdev->type_string = "CEX3A";
- zdev->min_mod_size = CEX3A_MIN_MOD_SIZE;
- zdev->max_mod_size = CEX3A_MAX_MOD_SIZE;
+ zdev->min_mod_size = CEX2A_MIN_MOD_SIZE;
+ zdev->max_mod_size = CEX2A_MAX_MOD_SIZE;
+ zdev->max_exp_bit_length = CEX2A_MAX_MOD_SIZE;
+ if (ap_4096_commands_available(ap_dev->qid)) {
+ zdev->max_mod_size = CEX3A_MAX_MOD_SIZE;
+ zdev->max_exp_bit_length = CEX3A_MAX_MOD_SIZE;
+ }
zdev->short_crt = 1;
zdev->speed_rating = CEX3A_SPEED_RATING;
break;
diff --git a/drivers/s390/crypto/zcrypt_cex2a.h b/drivers/s390/crypto/zcrypt_cex2a.h
index 8f69d1dacab8..0350665810cf 100644
--- a/drivers/s390/crypto/zcrypt_cex2a.h
+++ b/drivers/s390/crypto/zcrypt_cex2a.h
@@ -51,8 +51,10 @@ struct type50_hdr {
#define TYPE50_MEB1_FMT 0x0001
#define TYPE50_MEB2_FMT 0x0002
+#define TYPE50_MEB3_FMT 0x0003
#define TYPE50_CRB1_FMT 0x0011
#define TYPE50_CRB2_FMT 0x0012
+#define TYPE50_CRB3_FMT 0x0013
/* Mod-Exp, with a small modulus */
struct type50_meb1_msg {
@@ -74,6 +76,16 @@ struct type50_meb2_msg {
unsigned char message[256];
} __attribute__((packed));
+/* Mod-Exp, with a larger modulus */
+struct type50_meb3_msg {
+ struct type50_hdr header;
+ unsigned short keyblock_type; /* 0x0003 */
+ unsigned char reserved[6];
+ unsigned char exponent[512];
+ unsigned char modulus[512];
+ unsigned char message[512];
+} __attribute__((packed));
+
/* CRT, with a small modulus */
struct type50_crb1_msg {
struct type50_hdr header;
@@ -100,6 +112,19 @@ struct type50_crb2_msg {
unsigned char message[256];
} __attribute__((packed));
+/* CRT, with a larger modulus */
+struct type50_crb3_msg {
+ struct type50_hdr header;
+ unsigned short keyblock_type; /* 0x0013 */
+ unsigned char reserved[6];
+ unsigned char p[256];
+ unsigned char q[256];
+ unsigned char dp[256];
+ unsigned char dq[256];
+ unsigned char u[256];
+ unsigned char message[512];
+} __attribute__((packed));
+
/**
* The type 80 response family is associated with a CEX2A card.
*
diff --git a/drivers/s390/crypto/zcrypt_pcica.c b/drivers/s390/crypto/zcrypt_pcica.c
index 09e934b295a0..1afb69c75fea 100644
--- a/drivers/s390/crypto/zcrypt_pcica.c
+++ b/drivers/s390/crypto/zcrypt_pcica.c
@@ -373,6 +373,7 @@ static int zcrypt_pcica_probe(struct ap_device *ap_dev)
zdev->min_mod_size = PCICA_MIN_MOD_SIZE;
zdev->max_mod_size = PCICA_MAX_MOD_SIZE;
zdev->speed_rating = PCICA_SPEED_RATING;
+ zdev->max_exp_bit_length = PCICA_MAX_MOD_SIZE;
ap_dev->reply = &zdev->reply;
ap_dev->private = zdev;
rc = zcrypt_device_register(zdev);
diff --git a/drivers/s390/crypto/zcrypt_pcicc.c b/drivers/s390/crypto/zcrypt_pcicc.c
index 9dec5c77cff4..aa4c050a5694 100644
--- a/drivers/s390/crypto/zcrypt_pcicc.c
+++ b/drivers/s390/crypto/zcrypt_pcicc.c
@@ -579,6 +579,7 @@ static int zcrypt_pcicc_probe(struct ap_device *ap_dev)
zdev->min_mod_size = PCICC_MIN_MOD_SIZE;
zdev->max_mod_size = PCICC_MAX_MOD_SIZE;
zdev->speed_rating = PCICC_SPEED_RATING;
+ zdev->max_exp_bit_length = PCICC_MAX_MOD_SIZE;
ap_dev->reply = &zdev->reply;
ap_dev->private = zdev;
rc = zcrypt_device_register(zdev);
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
index 510fab4577d4..4f85eb725f4f 100644
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -45,12 +45,12 @@
#define PCIXCC_MIN_MOD_SIZE_OLD 64 /* 512 bits */
#define PCIXCC_MAX_MOD_SIZE 256 /* 2048 bits */
#define CEX3C_MIN_MOD_SIZE PCIXCC_MIN_MOD_SIZE
-#define CEX3C_MAX_MOD_SIZE PCIXCC_MAX_MOD_SIZE
+#define CEX3C_MAX_MOD_SIZE 512 /* 4096 bits */
#define PCIXCC_MCL2_SPEED_RATING 7870
#define PCIXCC_MCL3_SPEED_RATING 7870
#define CEX2C_SPEED_RATING 7000
-#define CEX3C_SPEED_RATING 6500 /* FIXME: needs finetuning */
+#define CEX3C_SPEED_RATING 6500
#define PCIXCC_MAX_ICA_MESSAGE_SIZE 0x77c /* max size type6 v2 crt message */
#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply */
@@ -567,6 +567,15 @@ static int convert_response_ica(struct zcrypt_device *zdev,
case TYPE88_RSP_CODE:
return convert_error(zdev, reply);
case TYPE86_RSP_CODE:
+ if (msg->cprbx.ccp_rtcode &&
+ (msg->cprbx.ccp_rscode == 0x14f) &&
+ (outputdatalength > 256)) {
+ if (zdev->max_exp_bit_length <= 17) {
+ zdev->max_exp_bit_length = 17;
+ return -EAGAIN;
+ } else
+ return -EINVAL;
+ }
if (msg->hdr.reply_code)
return convert_error(zdev, reply);
if (msg->cprbx.cprb_ver_id == 0x02)
@@ -1052,11 +1061,13 @@ static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
zdev->speed_rating = PCIXCC_MCL2_SPEED_RATING;
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD;
zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
+ zdev->max_exp_bit_length = PCIXCC_MAX_MOD_SIZE;
} else {
zdev->type_string = "PCIXCC_MCL3";
zdev->speed_rating = PCIXCC_MCL3_SPEED_RATING;
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE;
zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
+ zdev->max_exp_bit_length = PCIXCC_MAX_MOD_SIZE;
}
break;
case AP_DEVICE_TYPE_CEX2C:
@@ -1065,6 +1076,7 @@ static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
zdev->speed_rating = CEX2C_SPEED_RATING;
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE;
zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
+ zdev->max_exp_bit_length = PCIXCC_MAX_MOD_SIZE;
break;
case AP_DEVICE_TYPE_CEX3C:
zdev->user_space_type = ZCRYPT_CEX3C;
@@ -1072,6 +1084,7 @@ static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
zdev->speed_rating = CEX3C_SPEED_RATING;
zdev->min_mod_size = CEX3C_MIN_MOD_SIZE;
zdev->max_mod_size = CEX3C_MAX_MOD_SIZE;
+ zdev->max_exp_bit_length = CEX3C_MAX_MOD_SIZE;
break;
default:
goto out_free;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.