diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/appldata/appldata_net_sum.c | 3 | ||||
| -rw-r--r-- | arch/s390/crypto/Makefile | 2 | ||||
| -rw-r--r-- | arch/s390/crypto/crypto_des.h | 2 | ||||
| -rw-r--r-- | arch/s390/crypto/des_s390.c | 238 | ||||
| -rw-r--r-- | arch/s390/include/asm/kvm_host.h | 5 | ||||
| -rw-r--r-- | arch/s390/include/asm/qdio.h | 6 | ||||
| -rw-r--r-- | arch/s390/kvm/intercept.c | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 64 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 2 |
9 files changed, 55 insertions, 269 deletions
diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c index 9a9586f4103f..f02e89ce4df1 100644 --- a/arch/s390/appldata/appldata_net_sum.c +++ b/arch/s390/appldata/appldata_net_sum.c @@ -85,7 +85,8 @@ static void appldata_get_net_sum_data(void *data) rcu_read_lock(); for_each_netdev_rcu(&init_net, dev) { - const struct net_device_stats *stats = dev_get_stats(dev); + struct rtnl_link_stats64 temp; + const struct net_device_stats *stats = dev_get_stats(dev, &temp); rx_packets += stats->rx_packets; tx_packets += stats->tx_packets; diff --git a/arch/s390/crypto/Makefile b/arch/s390/crypto/Makefile index 6a1157fa4f98..1cf81d77c5a5 100644 --- a/arch/s390/crypto/Makefile +++ b/arch/s390/crypto/Makefile @@ -5,6 +5,6 @@ obj-$(CONFIG_CRYPTO_SHA1_S390) += sha1_s390.o sha_common.o obj-$(CONFIG_CRYPTO_SHA256_S390) += sha256_s390.o sha_common.o obj-$(CONFIG_CRYPTO_SHA512_S390) += sha512_s390.o sha_common.o -obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o des_check_key.o +obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o obj-$(CONFIG_CRYPTO_AES_S390) += aes_s390.o obj-$(CONFIG_S390_PRNG) += prng.o diff --git a/arch/s390/crypto/crypto_des.h b/arch/s390/crypto/crypto_des.h index c964b64111dd..6210457ceebb 100644 --- a/arch/s390/crypto/crypto_des.h +++ b/arch/s390/crypto/crypto_des.h @@ -15,4 +15,4 @@ extern int crypto_des_check_key(const u8*, unsigned int, u32*); -#endif //__CRYPTO_DES_H__ +#endif /*__CRYPTO_DES_H__*/ diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c index 2bc479ab3a66..cc5420118393 100644 --- a/arch/s390/crypto/des_s390.c +++ b/arch/s390/crypto/des_s390.c @@ -14,32 +14,21 @@ * */ -#include <crypto/algapi.h> #include <linux/init.h> #include <linux/module.h> +#include <linux/crypto.h> +#include <crypto/algapi.h> +#include <crypto/des.h> #include "crypt_s390.h" -#include "crypto_des.h" - -#define DES_BLOCK_SIZE 8 -#define DES_KEY_SIZE 8 - -#define DES3_128_KEY_SIZE (2 * DES_KEY_SIZE) -#define DES3_128_BLOCK_SIZE DES_BLOCK_SIZE #define DES3_192_KEY_SIZE (3 * DES_KEY_SIZE) -#define DES3_192_BLOCK_SIZE DES_BLOCK_SIZE struct crypt_s390_des_ctx { u8 iv[DES_BLOCK_SIZE]; u8 key[DES_KEY_SIZE]; }; -struct crypt_s390_des3_128_ctx { - u8 iv[DES_BLOCK_SIZE]; - u8 key[DES3_128_KEY_SIZE]; -}; - struct crypt_s390_des3_192_ctx { u8 iv[DES_BLOCK_SIZE]; u8 key[DES3_192_KEY_SIZE]; @@ -50,13 +39,16 @@ static int des_setkey(struct crypto_tfm *tfm, const u8 *key, { struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm); u32 *flags = &tfm->crt_flags; - int ret; + u32 tmp[DES_EXPKEY_WORDS]; - /* test if key is valid (not a weak key) */ - ret = crypto_des_check_key(key, keylen, flags); - if (ret == 0) - memcpy(dctx->key, key, keylen); - return ret; + /* check for weak keys */ + if (!des_ekey(tmp, key) && (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) { + *flags |= CRYPTO_TFM_RES_WEAK_KEY; + return -EINVAL; + } + + memcpy(dctx->key, key, keylen); + return 0; } static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) @@ -237,165 +229,6 @@ static struct crypto_alg cbc_des_alg = { * complementation keys. Any weakness is obviated by the use of * multiple keys. * - * However, if the two independent 64-bit keys are equal, - * then the DES3 operation is simply the same as DES. - * Implementers MUST reject keys that exhibit this property. - * - */ -static int des3_128_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen) -{ - int i, ret; - struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm); - const u8 *temp_key = key; - u32 *flags = &tfm->crt_flags; - - if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE)) && - (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) { - *flags |= CRYPTO_TFM_RES_WEAK_KEY; - return -EINVAL; - } - for (i = 0; i < 2; i++, temp_key += DES_KEY_SIZE) { - ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags); - if (ret < 0) - return ret; - } - memcpy(dctx->key, key, keylen); - return 0; -} - -static void des3_128_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) -{ - struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm); - - crypt_s390_km(KM_TDEA_128_ENCRYPT, dctx->key, dst, (void*)src, - DES3_128_BLOCK_SIZE); -} - -static void des3_128_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) -{ - struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm); - - crypt_s390_km(KM_TDEA_128_DECRYPT, dctx->key, dst, (void*)src, - DES3_128_BLOCK_SIZE); -} - -static struct crypto_alg des3_128_alg = { - .cra_name = "des3_ede128", - .cra_driver_name = "des3_ede128-s390", - .cra_priority = CRYPT_S390_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_CIPHER, - .cra_blocksize = DES3_128_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx), - .cra_module = THIS_MODULE, - .cra_list = LIST_HEAD_INIT(des3_128_alg.cra_list), - .cra_u = { - .cipher = { - .cia_min_keysize = DES3_128_KEY_SIZE, - .cia_max_keysize = DES3_128_KEY_SIZE, - .cia_setkey = des3_128_setkey, - .cia_encrypt = des3_128_encrypt, - .cia_decrypt = des3_128_decrypt, - } - } -}; - -static int ecb_des3_128_encrypt(struct blkcipher_desc *desc, - struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm); - struct blkcipher_walk walk; - - blkcipher_walk_init(&walk, dst, src, nbytes); - return ecb_desall_crypt(desc, KM_TDEA_128_ENCRYPT, sctx->key, &walk); -} - -static int ecb_des3_128_decrypt(struct blkcipher_desc *desc, - struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm); - struct blkcipher_walk walk; - - blkcipher_walk_init(&walk, dst, src, nbytes); - return ecb_desall_crypt(desc, KM_TDEA_128_DECRYPT, sctx->key, &walk); -} - -static struct crypto_alg ecb_des3_128_alg = { - .cra_name = "ecb(des3_ede128)", - .cra_driver_name = "ecb-des3_ede128-s390", - .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = DES3_128_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx), - .cra_type = &crypto_blkcipher_type, - .cra_module = THIS_MODULE, - .cra_list = LIST_HEAD_INIT( - ecb_des3_128_alg.cra_list), - .cra_u = { - .blkcipher = { - .min_keysize = DES3_128_KEY_SIZE, - .max_keysize = DES3_128_KEY_SIZE, - .setkey = des3_128_setkey, - .encrypt = ecb_des3_128_encrypt, - .decrypt = ecb_des3_128_decrypt, - } - } -}; - -static int cbc_des3_128_encrypt(struct blkcipher_desc *desc, - struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm); - struct blkcipher_walk walk; - - blkcipher_walk_init(&walk, dst, src, nbytes); - return cbc_desall_crypt(desc, KMC_TDEA_128_ENCRYPT, sctx->iv, &walk); -} - -static int cbc_des3_128_decrypt(struct blkcipher_desc *desc, - struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm); - struct blkcipher_walk walk; - - blkcipher_walk_init(&walk, dst, src, nbytes); - return cbc_desall_crypt(desc, KMC_TDEA_128_DECRYPT, sctx->iv, &walk); -} - -static struct crypto_alg cbc_des3_128_alg = { - .cra_name = "cbc(des3_ede128)", - .cra_driver_name = "cbc-des3_ede128-s390", - .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = DES3_128_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx), - .cra_type = &crypto_blkcipher_type, - .cra_module = THIS_MODULE, - .cra_list = LIST_HEAD_INIT( - cbc_des3_128_alg.cra_list), - .cra_u = { - .blkcipher = { - .min_keysize = DES3_128_KEY_SIZE, - .max_keysize = DES3_128_KEY_SIZE, - .ivsize = DES3_128_BLOCK_SIZE, - .setkey = des3_128_setkey, - .encrypt = cbc_des3_128_encrypt, - .decrypt = cbc_des3_128_decrypt, - } - } -}; - -/* - * RFC2451: - * - * For DES-EDE3, there is no known need to reject weak or - * complementation keys. Any weakness is obviated by the use of - * multiple keys. - * * However, if the first two or last two independent 64-bit keys are * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the * same as DES. Implementers MUST reject keys that exhibit this @@ -405,9 +238,7 @@ static struct crypto_alg cbc_des3_128_alg = { static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) { - int i, ret; struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm); - const u8 *temp_key = key; u32 *flags = &tfm->crt_flags; if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) && @@ -417,11 +248,6 @@ static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key, *flags |= CRYPTO_TFM_RES_WEAK_KEY; return -EINVAL; } - for (i = 0; i < 3; i++, temp_key += DES_KEY_SIZE) { - ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags); - if (ret < 0) - return ret; - } memcpy(dctx->key, key, keylen); return 0; } @@ -431,7 +257,7 @@ static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm); crypt_s390_km(KM_TDEA_192_ENCRYPT, dctx->key, dst, (void*)src, - DES3_192_BLOCK_SIZE); + DES_BLOCK_SIZE); } static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) @@ -439,7 +265,7 @@ static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm); crypt_s390_km(KM_TDEA_192_DECRYPT, dctx->key, dst, (void*)src, - DES3_192_BLOCK_SIZE); + DES_BLOCK_SIZE); } static struct crypto_alg des3_192_alg = { @@ -447,7 +273,7 @@ static struct crypto_alg des3_192_alg = { .cra_driver_name = "des3_ede-s390", .cra_priority = CRYPT_S390_PRIORITY, .cra_flags = CRYPTO_ALG_TYPE_CIPHER, - .cra_blocksize = DES3_192_BLOCK_SIZE, + .cra_blocksize = DES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx), .cra_module = THIS_MODULE, .cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list), @@ -489,7 +315,7 @@ static struct crypto_alg ecb_des3_192_alg = { .cra_driver_name = "ecb-des3_ede-s390", .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY, .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = DES3_192_BLOCK_SIZE, + .cra_blocksize = DES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx), .cra_type = &crypto_blkcipher_type, .cra_module = THIS_MODULE, @@ -533,7 +359,7 @@ static struct crypto_alg cbc_des3_192_alg = { .cra_driver_name = "cbc-des3_ede-s390", .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY, .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = DES3_192_BLOCK_SIZE, + .cra_blocksize = DES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx), .cra_type = &crypto_blkcipher_type, .cra_module = THIS_MODULE, @@ -543,7 +369,7 @@ static struct crypto_alg cbc_des3_192_alg = { .blkcipher = { .min_keysize = DES3_192_KEY_SIZE, .max_keysize = DES3_192_KEY_SIZE, - .ivsize = DES3_192_BLOCK_SIZE, + .ivsize = DES_BLOCK_SIZE, .setkey = des3_192_setkey, .encrypt = cbc_des3_192_encrypt, .decrypt = cbc_des3_192_decrypt, @@ -553,10 +379,9 @@ static struct crypto_alg cbc_des3_192_alg = { static int des_s390_init(void) { - int ret = 0; + int ret; if (!crypt_s390_func_available(KM_DEA_ENCRYPT) || - !crypt_s390_func_available(KM_TDEA_128_ENCRYPT) || !crypt_s390_func_available(KM_TDEA_192_ENCRYPT)) return -EOPNOTSUPP; @@ -569,17 +394,6 @@ static int des_s390_init(void) ret = crypto_register_alg(&cbc_des_alg); if (ret) goto cbc_des_err; - - ret = crypto_register_alg(&des3_128_alg); - if (ret) - goto des3_128_err; - ret = crypto_register_alg(&ecb_des3_128_alg); - if (ret) - goto ecb_des3_128_err; - ret = crypto_register_alg(&cbc_des3_128_alg); - if (ret) - goto cbc_des3_128_err; - ret = crypto_register_alg(&des3_192_alg); if (ret) goto des3_192_err; @@ -589,7 +403,6 @@ static int des_s390_init(void) ret = crypto_register_alg(&cbc_des3_192_alg); if (ret) goto cbc_des3_192_err; - out: return ret; @@ -598,12 +411,6 @@ cbc_des3_192_err: ecb_des3_192_err: crypto_unregister_alg(&des3_192_alg); des3_192_err: - crypto_unregister_alg(&cbc_des3_128_alg); -cbc_des3_128_err: - crypto_unregister_alg(&ecb_des3_128_alg); -ecb_des3_128_err: - crypto_unregister_alg(&des3_128_alg); -des3_128_err: crypto_unregister_alg(&cbc_des_alg); cbc_des_err: crypto_unregister_alg(&ecb_des_alg); @@ -613,21 +420,18 @@ des_err: goto out; } -static void __exit des_s390_fini(void) +static void __exit des_s390_exit(void) { crypto_unregister_alg(&cbc_des3_192_alg); crypto_unregister_alg(&ecb_des3_192_alg); crypto_unregister_alg(&des3_192_alg); - crypto_unregister_alg(&cbc_des3_128_alg); - crypto_unregister_alg(&ecb_des3_128_alg); - crypto_unregister_alg(&des3_128_alg); crypto_unregister_alg(&cbc_des_alg); crypto_unregister_alg(&ecb_des_alg); crypto_unregister_alg(&des_alg); } module_init(des_s390_init); -module_exit(des_s390_fini); +module_exit(des_s390_exit); MODULE_ALIAS("des"); MODULE_ALIAS("des3_ede"); diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 27605b62b980..cef7dbf69dfc 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -26,7 +26,7 @@ struct sca_entry { atomic_t scn; - __u64 reserved; + __u32 reserved; __u64 sda; __u64 reserved2[2]; } __attribute__((packed)); @@ -41,7 +41,8 @@ struct sca_block { } __attribute__((packed)); #define KVM_NR_PAGE_SIZES 2 -#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + ((x) - 1) * 8) +#define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8) +#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x)) #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x)) #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1)) #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE) diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 0eaae6260274..2ba630276295 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -84,6 +84,7 @@ struct qdr { #define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40 #define QIB_RFLAGS_ENABLE_QEBSM 0x80 +#define QIB_RFLAGS_ENABLE_DATA_DIV 0x02 /** * struct qib - queue information block (QIB) @@ -284,6 +285,9 @@ struct slsb { u8 val[QDIO_MAX_BUFFERS_PER_Q]; } __attribute__ ((packed, aligned(256))); +#define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010 +#define CHSC_AC2_DATA_DIV_ENABLED 0x0002 + struct qdio_ssqd_desc { u8 flags; u8:8; @@ -332,6 +336,7 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int, * @adapter_name: name for the adapter * @qib_param_field_format: format for qib_parm_field * @qib_param_field: pointer to 128 bytes or NULL, if no param field + * @qib_rflags: rflags to set * @input_slib_elements: pointer to no_input_qs * 128 words of data or NULL * @output_slib_elements: pointer to no_output_qs * 128 words of data or NULL * @no_input_qs: number of input queues @@ -348,6 +353,7 @@ struct qdio_initialize { unsigned char adapter_name[8]; unsigned int qib_param_field_format; unsigned char *qib_param_field; + unsigned char qib_rflags; unsigned long *input_slib_elements; unsigned long *output_slib_elements; unsigned int no_input_qs; diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c index 3ddc30895e31..f7b6df45d8be 100644 --- a/arch/s390/kvm/intercept.c +++ b/arch/s390/kvm/intercept.c @@ -135,7 +135,7 @@ static int handle_stop(struct kvm_vcpu *vcpu) spin_lock_bh(&vcpu->arch.local_int.lock); if (vcpu->arch.local_int.action_bits & ACTION_STORE_ON_STOP) { vcpu->arch.local_int.action_bits &= ~ACTION_STORE_ON_STOP; - rc = __kvm_s390_vcpu_store_status(vcpu, + rc = kvm_s390_vcpu_store_status(vcpu, KVM_S390_STORE_STATUS_NOADDR); if (rc >= 0) rc = -EOPNOTSUPP; diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ae3705816878..4fe68650535c 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -207,6 +207,7 @@ out_nokvm: void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) { VCPU_EVENT(vcpu, 3, "%s", "free cpu"); + clear_bit(63 - vcpu->vcpu_id, (unsigned long *) &vcpu->kvm->arch.sca->mcn); if (vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sda == (__u64) vcpu->arch.sie_block) vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sda = 0; @@ -296,7 +297,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) { atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH); set_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests); - vcpu->arch.sie_block->ecb = 2; + vcpu->arch.sie_block->ecb = 6; vcpu->arch.sie_block->eca = 0xC1002001U; vcpu->arch.sie_block->fac = (int) (long) facilities; hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS); @@ -329,6 +330,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, kvm->arch.sca->cpu[id].sda = (__u64) vcpu->arch.sie_block; vcpu->arch.sie_block->scaoh = (__u32)(((__u64)kvm->arch.sca) >> 32); vcpu->arch.sie_block->scaol = (__u32)(__u64)kvm->arch.sca; + set_bit(63 - id, (unsigned long *) &kvm->arch.sca->mcn); spin_lock_init(&vcpu->arch.local_int.lock); INIT_LIST_HEAD(&vcpu->arch.local_int.list); @@ -363,63 +365,49 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu) static int kvm_arch_vcpu_ioctl_initial_reset(struct kvm_vcpu *vcpu) { - vcpu_load(vcpu); kvm_s390_vcpu_initial_reset(vcpu); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { - vcpu_load(vcpu); memcpy(&vcpu->arch.guest_gprs, ®s->gprs, sizeof(regs->gprs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { - vcpu_load(vcpu); memcpy(®s->gprs, &vcpu->arch.guest_gprs, sizeof(regs->gprs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) { - vcpu_load(vcpu); memcpy(&vcpu->arch.guest_acrs, &sregs->acrs, sizeof(sregs->acrs)); memcpy(&vcpu->arch.sie_block->gcr, &sregs->crs, sizeof(sregs->crs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) { - vcpu_load(vcpu); memcpy(&sregs->acrs, &vcpu->arch.guest_acrs, sizeof(sregs->acrs)); memcpy(&sregs->crs, &vcpu->arch.sie_block->gcr, sizeof(sregs->crs)); - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { - vcpu_load(vcpu); memcpy(&vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs)); vcpu->arch.guest_fpregs.fpc = fpu->fpc; - vcpu_put(vcpu); return 0; } int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { - vcpu_load(vcpu); memcpy(&fpu->fprs, &vcpu->arch.guest_fpregs.fprs, sizeof(fpu->fprs)); fpu->fpc = vcpu->arch.guest_fpregs.fpc; - vcpu_put(vcpu); return 0; } @@ -427,14 +415,12 @@ static int kvm_arch_vcpu_ioctl_set_initial_psw(struct kvm_vcpu *vcpu, psw_t psw) { int rc = 0; - vcpu_load(vcpu); if (atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_RUNNING) rc = -EBUSY; else { vcpu->run->psw_mask = psw.mask; vcpu->run->psw_addr = psw.addr; } - vcpu_put(vcpu); return rc; } @@ -498,8 +484,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) int rc; sigset_t sigsaved; - vcpu_load(vcpu); - rerun_vcpu: if (vcpu->requests) if (test_and_clear_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests)) @@ -568,8 +552,6 @@ rerun_vcpu: if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &sigsaved, NULL); - vcpu_put(vcpu); - vcpu->stat.exit_userspace++; return rc; } @@ -589,7 +571,7 @@ static int __guestcopy(struct kvm_vcpu *vcpu, u64 guestdest, const void *from, * KVM_S390_STORE_STATUS_NOADDR: -> 0x1200 on 64 bit * KVM_S390_STORE_STATUS_PREFIXED: -> prefix */ -int __kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr) +int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr) { const unsigned char archmode = 1; int prefix; @@ -651,45 +633,42 @@ int __kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr) return 0; } -static int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr) -{ - int rc; - - vcpu_load(vcpu); - rc = __kvm_s390_vcpu_store_status(vcpu, addr); - vcpu_put(vcpu); - return rc; -} - long kvm_arch_vcpu_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg) { struct kvm_vcpu *vcpu = filp->private_data; void __user *argp = (void __user *)arg; + long r; switch (ioctl) { case KVM_S390_INTERRUPT: { struct kvm_s390_interrupt s390int; + r = -EFAULT; if (copy_from_user(&s390int, argp, sizeof(s390int))) - return -EFAULT; - return kvm_s390_inject_vcpu(vcpu, &s390int); + break; + r = kvm_s390_inject_vcpu(vcpu, &s390int); + break; } case KVM_S390_STORE_STATUS: - return kvm_s390_vcpu_store_status(vcpu, arg); + r = kvm_s390_vcpu_store_status(vcpu, arg); + break; case KVM_S390_SET_INITIAL_PSW: { psw_t psw; + r = -EFAULT; if (copy_from_user(&psw, argp, sizeof(psw))) - return -EFAULT; - return kvm_arch_vcpu_ioctl_set_initial_psw(vcpu, psw); + break; + r = kvm_arch_vcpu_ioctl_set_initial_psw(vcpu, psw); + break; } case KVM_S390_INITIAL_RESET: - return kvm_arch_vcpu_ioctl_initial_reset(vcpu); + r = kvm_arch_vcpu_ioctl_initial_reset(vcpu); + break; default: - ; + r = -EINVAL; } - return -EINVAL; + return r; } /* Section: memory related */ @@ -744,11 +723,6 @@ void kvm_arch_flush_shadow(struct kvm *kvm) { } -gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn) -{ - return gfn; -} - static int __init kvm_s390_init(void) { int ret; diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index cfa9d1777457..a7b7586626db 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -92,7 +92,7 @@ int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); /* implemented in kvm-s390.c */ -int __kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, +int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr); /* implemented in diag.c */ int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); 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