diff options
Diffstat (limited to 'arch/x86')
44 files changed, 120 insertions, 358 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 41250fb33985..57d021507120 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -31,6 +31,9 @@ ifeq ($(CONFIG_X86_32),y) KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return + # Don't autogenerate MMX or SSE instructions + KBUILD_CFLAGS += -mno-mmx -mno-sse + # Never want PIC in a 32-bit kernel, prevent breakage with GCC built # with nonstandard options KBUILD_CFLAGS += -fno-pic @@ -57,8 +60,11 @@ else KBUILD_AFLAGS += -m64 KBUILD_CFLAGS += -m64 + # Don't autogenerate MMX or SSE instructions + KBUILD_CFLAGS += -mno-mmx -mno-sse + # Use -mpreferred-stack-boundary=3 if supported. - KBUILD_CFLAGS += $(call cc-option,-mno-sse -mpreferred-stack-boundary=3) + KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=3) # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu) cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8) diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index dce69a256896..d9c11956fce0 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -53,18 +53,18 @@ $(obj)/cpustr.h: $(obj)/mkcpustr FORCE # How to compile the 16-bit code. Note we always compile for -march=i386, # that way we can complain to the user if the CPU is insufficient. -KBUILD_CFLAGS := $(USERINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \ +KBUILD_CFLAGS := $(USERINCLUDE) -m32 -g -Os -D_SETUP -D__KERNEL__ \ -DDISABLE_BRANCH_PROFILING \ -Wall -Wstrict-prototypes \ -march=i386 -mregparm=3 \ -include $(srctree)/$(src)/code16gcc.h \ -fno-strict-aliasing -fomit-frame-pointer -fno-pic \ + -mno-mmx -mno-sse \ $(call cc-option, -ffreestanding) \ $(call cc-option, -fno-toplevel-reorder,\ - $(call cc-option, -fno-unit-at-a-time)) \ + $(call cc-option, -fno-unit-at-a-time)) \ $(call cc-option, -fno-stack-protector) \ $(call cc-option, -mpreferred-stack-boundary=2) -KBUILD_CFLAGS += $(call cc-option, -m32) KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ GCOV_PROFILE := n diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index dcd90df10ab4..c8a6792e7842 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -13,6 +13,7 @@ KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING cflags-$(CONFIG_X86_32) := -march=i386 cflags-$(CONFIG_X86_64) := -mcmodel=small KBUILD_CFLAGS += $(cflags-y) +KBUILD_CFLAGS += -mno-mmx -mno-sse KBUILD_CFLAGS += $(call cc-option,-ffreestanding) KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile index 7d6ba9db1be9..e0fc24db234a 100644 --- a/arch/x86/crypto/Makefile +++ b/arch/x86/crypto/Makefile @@ -3,8 +3,9 @@ # avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no) +avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\ + $(comma)4)$(comma)%ymm2,yes,no) -obj-$(CONFIG_CRYPTO_ABLK_HELPER_X86) += ablk_helper.o obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o diff --git a/arch/x86/crypto/ablk_helper.c b/arch/x86/crypto/ablk_helper.c deleted file mode 100644 index 43282fe04a8b..000000000000 --- a/arch/x86/crypto/ablk_helper.c +++ /dev/null @@ -1,149 +0,0 @@ -/* - * Shared async block cipher helpers - * - * Copyright (c) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> - * - * Based on aesni-intel_glue.c by: - * Copyright (C) 2008, Intel Corp. - * Author: Huang Ying <ying.huang@intel.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - * USA - * - */ - -#include <linux/kernel.h> -#include <linux/crypto.h> -#include <linux/init.h> -#include <linux/module.h> -#include <crypto/algapi.h> -#include <crypto/cryptd.h> -#include <asm/i387.h> -#include <asm/crypto/ablk_helper.h> - -int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key, - unsigned int key_len) -{ - struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm); - struct crypto_ablkcipher *child = &ctx->cryptd_tfm->base; - int err; - - crypto_ablkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK); - crypto_ablkcipher_set_flags(child, crypto_ablkcipher_get_flags(tfm) - & CRYPTO_TFM_REQ_MASK); - err = crypto_ablkcipher_setkey(child, key, key_len); - crypto_ablkcipher_set_flags(tfm, crypto_ablkcipher_get_flags(child) - & CRYPTO_TFM_RES_MASK); - return err; -} -EXPORT_SYMBOL_GPL(ablk_set_key); - -int __ablk_encrypt(struct ablkcipher_request *req) -{ - struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); - struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm); - struct blkcipher_desc desc; - - desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm); - desc.info = req->info; - desc.flags = 0; - - return crypto_blkcipher_crt(desc.tfm)->encrypt( - &desc, req->dst, req->src, req->nbytes); -} -EXPORT_SYMBOL_GPL(__ablk_encrypt); - -int ablk_encrypt(struct ablkcipher_request *req) -{ - struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); - struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm); - - if (!irq_fpu_usable()) { - struct ablkcipher_request *cryptd_req = - ablkcipher_request_ctx(req); - - memcpy(cryptd_req, req, sizeof(*req)); - ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base); - - return crypto_ablkcipher_encrypt(cryptd_req); - } else { - return __ablk_encrypt(req); - } -} -EXPORT_SYMBOL_GPL(ablk_encrypt); - -int ablk_decrypt(struct ablkcipher_request *req) -{ - struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); - struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm); - - if (!irq_fpu_usable()) { - struct ablkcipher_request *cryptd_req = - ablkcipher_request_ctx(req); - - memcpy(cryptd_req, req, sizeof(*req)); - ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base); - - return crypto_ablkcipher_decrypt(cryptd_req); - } else { - struct blkcipher_desc desc; - - desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm); - desc.info = req->info; - desc.flags = 0; - - return crypto_blkcipher_crt(desc.tfm)->decrypt( - &desc, req->dst, req->src, req->nbytes); - } -} -EXPORT_SYMBOL_GPL(ablk_decrypt); - -void ablk_exit(struct crypto_tfm *tfm) -{ - struct async_helper_ctx *ctx = crypto_tfm_ctx(tfm); - - cryptd_free_ablkcipher(ctx->cryptd_tfm); -} -EXPORT_SYMBOL_GPL(ablk_exit); - -int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name) -{ - struct async_helper_ctx *ctx = crypto_tfm_ctx(tfm); - struct cryptd_ablkcipher *cryptd_tfm; - - cryptd_tfm = cryptd_alloc_ablkcipher(drv_name, 0, 0); - if (IS_ERR(cryptd_tfm)) - return PTR_ERR(cryptd_tfm); - - ctx->cryptd_tfm = cryptd_tfm; - tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request) + - crypto_ablkcipher_reqsize(&cryptd_tfm->base); - - return 0; -} -EXPORT_SYMBOL_GPL(ablk_init_common); - -int ablk_init(struct crypto_tfm *tfm) -{ - char drv_name[CRYPTO_MAX_ALG_NAME]; - - snprintf(drv_name, sizeof(drv_name), "__driver-%s", - crypto_tfm_alg_driver_name(tfm)); - - return ablk_init_common(tfm, drv_name); -} -EXPORT_SYMBOL_GPL(ablk_init); - -MODULE_LICENSE("GPL"); diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c index f80e668785c0..835488b745ee 100644 --- a/arch/x86/crypto/aesni-intel_glue.c +++ b/arch/x86/crypto/aesni-intel_glue.c @@ -34,7 +34,7 @@ #include <asm/cpu_device_id.h> #include <asm/i387.h> #include <asm/crypto/aes.h> -#include <asm/crypto/ablk_helper.h> +#include <crypto/ablk_helper.h> #include <crypto/scatterwalk.h> #include <crypto/internal/aead.h> #include <linux/workqueue.h> diff --git a/arch/x86/crypto/camellia_aesni_avx2_glue.c b/arch/x86/crypto/camellia_aesni_avx2_glue.c index 414fe5d7946b..4209a76fcdaa 100644 --- a/arch/x86/crypto/camellia_aesni_avx2_glue.c +++ b/arch/x86/crypto/camellia_aesni_avx2_glue.c @@ -14,6 +14,7 @@ #include <linux/types.h> #include <linux/crypto.h> #include <linux/err.h> +#include <crypto/ablk_helper.h> #include <crypto/algapi.h> #include <crypto/ctr.h> #include <crypto/lrw.h> @@ -21,7 +22,6 @@ #include <asm/xcr.h> #include <asm/xsave.h> #include <asm/crypto/camellia.h> -#include <asm/crypto/ablk_helper.h> #include <asm/crypto/glue_helper.h> #define CAMELLIA_AESNI_PARALLEL_BLOCKS 16 diff --git a/arch/x86/crypto/camellia_aesni_avx_glue.c b/arch/x86/crypto/camellia_aesni_avx_glue.c index 37fd0c0a81ea..87a041a10f4a 100644 --- a/arch/x86/crypto/camellia_aesni_avx_glue.c +++ b/arch/x86/crypto/camellia_aesni_avx_glue.c @@ -14,6 +14,7 @@ #include <linux/types.h> #include <linux/crypto.h> #include <linux/err.h> +#include <crypto/ablk_helper.h> #include <crypto/algapi.h> #include <crypto/ctr.h> #include <crypto/lrw.h> @@ -21,7 +22,6 @@ #include <asm/xcr.h> #include <asm/xsave.h> #include <asm/crypto/camellia.h> -#include <asm/crypto/ablk_helper.h> #include <asm/crypto/glue_helper.h> #define CAMELLIA_AESNI_PARALLEL_BLOCKS 16 diff --git a/arch/x86/crypto/cast5_avx_glue.c b/arch/x86/crypto/cast5_avx_glue.c index c6631813dc11..e6a3700489b9 100644 --- a/arch/x86/crypto/cast5_avx_glue.c +++ b/arch/x86/crypto/cast5_avx_glue.c @@ -26,13 +26,13 @@ #include <linux/types.h> #include <linux/crypto.h> #include <linux/err.h> +#include <crypto/ablk_helper.h> #include <crypto/algapi.h> #include <crypto/cast5.h> #include <crypto/cryptd.h> #include <crypto/ctr.h> #include <asm/xcr.h> #include <asm/xsave.h> -#include <asm/crypto/ablk_helper.h> #include <asm/crypto/glue_helper.h> #define CAST5_PARALLEL_BLOCKS 16 diff --git a/arch/x86/crypto/cast6_avx_glue.c b/arch/x86/crypto/cast6_avx_glue.c index 8d0dfb86a559..09f3677393e4 100644 --- a/arch/x86/crypto/cast6_avx_glue.c +++ b/arch/x86/crypto/cast6_avx_glue.c @@ -28,6 +28,7 @@ #include <linux/types.h> #include <linux/crypto.h> #include <linux/err.h> +#include <crypto/ablk_helper.h> #include <crypto/algapi.h> #include <crypto/cast6.h> #include <crypto/cryptd.h> @@ -37,7 +38,6 @@ #include <crypto/xts.h> #include <asm/xcr.h> #include <asm/xsave.h> -#include <asm/crypto/ablk_helper.h> #include <asm/crypto/glue_helper.h> #define CAST6_PARALLEL_BLOCKS 8 diff --git a/arch/x86/crypto/serpent_avx2_glue.c b/arch/x86/crypto/serpent_avx2_glue.c index 23aabc6c20a5..2fae489b1524 100644 --- a/arch/x86/crypto/serpent_avx2_glue.c +++ b/arch/x86/crypto/serpent_avx2_glue.c @@ -14,6 +14,7 @@ #include <linux/types.h> #include <linux/crypto.h> #include <linux/err.h> +#include <crypto/ablk_helper.h> #include <crypto/algapi.h> #include <crypto/ctr.h> #include <crypto/lrw.h> @@ -22,7 +23,6 @@ #include <asm/xcr.h> #include <asm/xsave.h> #include <asm/crypto/serpent-avx.h> -#include <asm/crypto/ablk_helper.h> #include <asm/crypto/glue_helper.h> #define SERPENT_AVX2_PARALLEL_BLOCKS 16 diff --git a/arch/x86/crypto/serpent_avx_glue.c b/arch/x86/crypto/serpent_avx_glue.c index 9ae83cf8d21e..ff4870870972 100644 --- a/arch/x86/crypto/serpent_avx_glue.c +++ b/arch/x86/crypto/serpent_avx_glue.c @@ -28,6 +28,7 @@ #include <linux/types.h> #include <linux/crypto.h> #include <linux/err.h> +#include <crypto/ablk_helper.h> #include <crypto/algapi.h> #include <crypto/serpent.h> #include <crypto/cryptd.h> @@ -38,7 +39,6 @@ #include <asm/xcr.h> #include <asm/xsave.h> #include <asm/crypto/serpent-avx.h> -#include <asm/crypto/ablk_helper.h> #include <asm/crypto/glue_helper.h> /* 8-way parallel cipher functions */ diff --git a/arch/x86/crypto/serpent_sse2_glue.c b/arch/x86/crypto/serpent_sse2_glue.c index 97a356ece24d..8c95f8637306 100644 --- a/arch/x86/crypto/serpent_sse2_glue.c +++ b/arch/x86/crypto/serpent_sse2_glue.c @@ -34,6 +34,7 @@ #include <linux/types.h> #include <linux/crypto.h> #include <linux/err.h> +#include <crypto/ablk_helper.h> #include <crypto/algapi.h> #include <crypto/serpent.h> #include <crypto/cryptd.h> @@ -42,7 +43,6 @@ #include <crypto/lrw.h> #include <crypto/xts.h> #include <asm/crypto/serpent-sse2.h> -#include <asm/crypto/ablk_helper.h> #include <asm/crypto/glue_helper.h> static void serpent_decrypt_cbc_xway(void *ctx, u128 *dst, const u128 *src) diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c index 50226c4b86ed..f248546da1ca 100644 --- a/arch/x86/crypto/sha256_ssse3_glue.c +++ b/arch/x86/crypto/sha256_ssse3_glue.c @@ -281,7 +281,7 @@ static int __init sha256_ssse3_mod_init(void) /* allow AVX to override SSSE3, it's a little faster */ if (avx_usable()) { #ifdef CONFIG_AS_AVX2 - if (boot_cpu_has(X86_FEATURE_AVX2)) + if (boot_cpu_has(X86_FEATURE_AVX2) && boot_cpu_has(X86_FEATURE_BMI2)) sha256_transform_asm = sha256_transform_rorx; else #endif @@ -319,4 +319,4 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm, Supplemental SSE3 accelerated"); MODULE_ALIAS("sha256"); -MODULE_ALIAS("sha384"); +MODULE_ALIAS("sha224"); diff --git a/arch/x86/crypto/twofish_avx_glue.c b/arch/x86/crypto/twofish_avx_glue.c index a62ba541884e..4e3c665be129 100644 --- a/arch/x86/crypto/twofish_avx_glue.c +++ b/arch/x86/crypto/twofish_avx_glue.c @@ -28,6 +28,7 @@ #include <linux/types.h> #include <linux/crypto.h> #include <linux/err.h> +#include <crypto/ablk_helper.h> #include <crypto/algapi.h> #include <crypto/twofish.h> #include <crypto/cryptd.h> @@ -39,7 +40,6 @@ #include <asm/xcr.h> #include <asm/xsave.h> #include <asm/crypto/twofish.h> -#include <asm/crypto/ablk_helper.h> #include <asm/crypto/glue_helper.h> #include <crypto/scatterwalk.h> #include <linux/workqueue.h> diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h index da31c8b8a92d..b17f4f48ecd7 100644 --- a/arch/x86/include/asm/atomic.h +++ b/arch/x86/include/asm/atomic.h @@ -77,7 +77,7 @@ static inline void atomic_sub(int i, atomic_t *v) */ static inline int atomic_sub_and_test(int i, atomic_t *v) { - GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, i, "%0", "e"); + GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, "er", i, "%0", "e"); } /** @@ -141,7 +141,7 @@ static inline int atomic_inc_and_test(atomic_t *v) */ static inline int atomic_add_negative(int i, atomic_t *v) { - GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, i, "%0", "s"); + GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, "er", i, "%0", "s"); } /** diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h index 3f065c985aee..46e9052bbd28 100644 --- a/arch/x86/include/asm/atomic64_64.h +++ b/arch/x86/include/asm/atomic64_64.h @@ -72,7 +72,7 @@ static inline void atomic64_sub(long i, atomic64_t *v) */ static inline int atomic64_sub_and_test(long i, atomic64_t *v) { - GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, i, "%0", "e"); + GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, "er", i, "%0", "e"); } /** @@ -138,7 +138,7 @@ static inline int atomic64_inc_and_test(atomic64_t *v) */ static inline int atomic64_add_negative(long i, atomic64_t *v) { - GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, i, "%0", "s"); + GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, "er", i, "%0", "s"); } /** diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h index 6d76d0935989..9fc1af74dc83 100644 --- a/arch/x86/include/asm/bitops.h +++ b/arch/x86/include/asm/bitops.h @@ -205,7 +205,7 @@ static inline void change_bit(long nr, volatile unsigned long *addr) */ static inline int test_and_set_bit(long nr, volatile unsigned long *addr) { - GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, nr, "%0", "c"); + GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c"); } /** @@ -251,7 +251,7 @@ static inline int __test_and_set_bit(long nr, volatile unsigned long *addr) */ static inline int test_and_clear_bit(long nr, volatile unsigned long *addr) { - GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, nr, "%0", "c"); + GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c"); } /** @@ -304,7 +304,7 @@ static inline int __test_and_change_bit(long nr, volatile unsigned long *addr) */ static inline int test_and_change_bit(long nr, volatile unsigned long *addr) { - GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, nr, "%0", "c"); + GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c"); } static __always_inline int constant_test_bit(long nr, const volatile unsigned long *addr) diff --git a/arch/x86/include/asm/crypto/ablk_helper.h b/arch/x86/include/asm/crypto/ablk_helper.h deleted file mode 100644 index 4f93df50c23e..000000000000 --- a/arch/x86/include/asm/crypto/ablk_helper.h +++ /dev/null @@ -1,31 +0,0 @@ -/* - * Shared async block cipher helpers - */ - -#ifndef _CRYPTO_ABLK_HELPER_H -#define _CRYPTO_ABLK_HELPER_H - -#include <linux/crypto.h> -#include <linux/kernel.h> -#include <crypto/cryptd.h> - -struct async_helper_ctx { - struct cryptd_ablkcipher *cryptd_tfm; -}; - -extern int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key, - unsigned int key_len); - -extern int __ablk_encrypt(struct ablkcipher_request *req); - -extern int ablk_encrypt(struct ablkcipher_request *req); - -extern int ablk_decrypt(struct ablkcipher_request *req); - -extern void ablk_exit(struct crypto_tfm *tfm); - -extern int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name); - -extern int ablk_init(struct crypto_tfm *tfm); - -#endif /* _CRYPTO_ABLK_HELPER_H */ diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h index 5b23e605e707..4ad6560847b1 100644 --- a/arch/x86/include/asm/local.h +++ b/arch/x86/include/asm/local.h @@ -52,7 +52,7 @@ static inline void local_sub(long i, local_t *l) */ static inline int local_sub_and_test(long i, local_t *l) { - GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, i, "%0", "e"); + GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, "er", i, "%0", "e"); } /** @@ -92,7 +92,7 @@ static inline int local_inc_and_test(local_t *l) */ static inline int local_add_negative(long i, local_t *l) { - GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, i, "%0", "s"); + GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, "er", i, "%0", "s"); } /** diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index 7d7443283a9d..947b5c417e83 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -15,7 +15,7 @@ struct pci_sysdata { int domain; /* PCI domain */ int node; /* NUMA node */ #ifdef CONFIG_ACPI - void *acpi; /* ACPI-specific data */ + struct acpi_device *companion; /* ACPI companion device */ #endif #ifdef CONFIG_X86_64 void *iommu; /* IOMMU private data */ diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h index 1ff990f1de8e..8f7866a5b9a4 100644 --- a/arch/x86/include/asm/rmwcc.h +++ b/arch/x86/include/asm/rmwcc.h @@ -16,8 +16,8 @@ cc_label: \ #define GEN_UNARY_RMWcc(op, var, arg0, cc) \ __GEN_RMWcc(op " " arg0, var, cc) -#define GEN_BINARY_RMWcc(op, var, val, arg0, cc) \ - __GEN_RMWcc(op " %1, " arg0, var, cc, "er" (val)) +#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \ + __GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val)) #else /* !CC_HAVE_ASM_GOTO */ @@ -33,8 +33,8 @@ do { \ #define GEN_UNARY_RMWcc(op, var, arg0, cc) \ __GEN_RMWcc(op " " arg0, var, cc) -#define GEN_BINARY_RMWcc(op, var, val, arg0, cc) \ - __GEN_RMWcc(op " %2, " arg0, var, cc, "er" (val)) +#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \ + __GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val)) #endif /* CC_HAVE_ASM_GOTO */ diff --git a/arch/x86/include/asm/simd.h b/arch/x86/include/asm/simd.h new file mode 100644 index 000000000000..ee80b92f0096 --- /dev/null +++ b/arch/x86/include/asm/simd.h @@ -0,0 +1,11 @@ + +#include <asm/i387.h> + +/* + * may_use_simd - whether it is allowable at this time to issue SIMD + * instructions or access the SIMD register file + */ +static __must_check inline bool may_use_simd(void) +{ + return irq_fpu_usable(); +} diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index c46a46be1ec6..3ba3de457d05 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -153,8 +153,6 @@ struct thread_info { #define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY) #define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW) -#define PREEMPT_ACTIVE 0x10000000 - #ifdef CONFIG_X86_32 #define STACK_WARN (THREAD_SIZE/8) diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h index b93e09a0fa21..37813b5ddc37 100644 --- a/arch/x86/include/uapi/asm/msr-index.h +++ b/arch/x86/include/uapi/asm/msr-index.h @@ -147,6 +147,8 @@ #define MSR_PP1_ENERGY_STATUS 0x00000641 #define MSR_PP1_POLICY 0x00000642 +#define MSR_CORE_C1_RES 0x00000660 + #define MSR_AMD64_MC0_MASK 0xc0010044 #define MSR_IA32_MCx_CTL(x) (MSR_IA32_MC0_CTL + 4*(x)) diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index ed165d657380..d278736bf774 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -62,6 +62,7 @@ unsigned disabled_cpus; /* Processor that is doing the boot up */ unsigned int boot_cpu_physical_apicid = -1U; +EXPORT_SYMBOL_GPL(boot_cpu_physical_apicid); /* * The highest APIC ID seen during enumeration. diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c index 96f958d8cd45..bc4a088f9023 100644 --- a/arch/x86/kernel/early-quirks.c +++ b/arch/x86/kernel/early-quirks.c @@ -330,8 +330,8 @@ static struct pci_device_id intel_stolen_ids[] __initdata = { INTEL_I915GM_IDS(gen3_stolen_size), INTEL_I945G_IDS(gen3_stolen_size), INTEL_I945GM_IDS(gen3_stolen_size), - INTEL_VLV_M_IDS(gen3_stolen_size), - INTEL_VLV_D_IDS(gen3_stolen_size), + INTEL_VLV_M_IDS(gen6_stolen_size), + INTEL_VLV_D_IDS(gen6_stolen_size), INTEL_PINEVIEW_IDS(gen3_stolen_size), INTEL_I965G_IDS(gen3_stolen_size), INTEL_G33_IDS(gen3_stolen_size), diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index da3c599584a3..c752cb43e52f 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -558,6 +558,17 @@ void native_machine_shutdown(void) { /* Stop the cpus and apics */ #ifdef CONFIG_X86_IO_APIC + /* + * Disabling IO APIC before local APIC is a workaround for + * erratum AVR31 in "Intel Atom Processor C2000 Product Family + * Specification Update". In this situation, interrupts that target + * a Logical Processor whose Local APIC is either in the process of + * being hardware disabled or software disabled are neither delivered + * nor discarded. When this erratum occurs, the processor may hang. + * + * Even without the erratum, it still makes sense to quiet IO APIC + * before disabling Local APIC. + */ disable_IO_APIC(); #endif diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 5439117d5c4c..dec48bfaddb8 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -143,6 +143,8 @@ static inline int kvm_apic_id(struct kvm_lapic *apic) return (kvm_apic_get_reg(apic, APIC_ID) >> 24) & 0xff; } +#define KVM_X2APIC_CID_BITS 0 + static void recalculate_apic_map(struct kvm *kvm) { struct kvm_apic_map *new, *old = NULL; @@ -180,7 +182,8 @@ static void recalculate_apic_map(struct kvm *kvm) if (apic_x2apic_mode(apic)) { new->ldr_bits = 32; new->cid_shift = 16; - new->cid_mask = new->lid_mask = 0xffff; + new->cid_mask = (1 << KVM_X2APIC_CID_BITS) - 1; + new->lid_mask = 0xffff; } else if (kvm_apic_sw_enabled(apic) && !new->cid_mask /* flat mode */ && kvm_apic_get_reg(apic, APIC_DFR) == APIC_DFR_CLUSTER) { @@ -841,7 +844,8 @@ static u32 apic_get_tmcct(struct kvm_lapic *apic) ASSERT(apic != NULL); /* if initial count is 0, current count should also be 0 */ - if (kvm_apic_get_reg(apic, APIC_TMICT) == 0) + if (kvm_apic_get_reg(apic, APIC_TMICT) == 0 || + apic->lapic_timer.period == 0) return 0; remaining = hrtimer_get_remaining(&apic->lapic_timer.timer); @@ -1691,7 +1695,6 @@ static void apic_sync_pv_eoi_from_guest(struct kvm_vcpu *vcpu, void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu) { u32 data; - void *vapic; if (test_bit(KVM_APIC_PV_EOI_PENDING, &vcpu->arch.apic_attention)) apic_sync_pv_eoi_from_guest(vcpu, vcpu->arch.apic); @@ -1699,9 +1702,8 @@ void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu) if (!test_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention)) return; - vapic = kmap_atomic(vcpu->arch.apic->vapic_page); - data = *(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr)); - kunmap_atomic(vapic); + kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.apic->vapic_cache, &data, + sizeof(u32)); apic_set_tpr(vcpu->arch.apic, data & 0xff); } @@ -1737,7 +1739,6 @@ void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu) u32 data, tpr; int max_irr, max_isr; struct kvm_lapic *apic = vcpu->arch.apic; - void *vapic; apic_sync_pv_eoi_to_guest(vcpu, apic); @@ -1753,18 +1754,24 @@ void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu) max_isr = 0; data = (tpr & 0xff) | ((max_isr & 0xf0) << 8) | (max_irr << 24); - vapic = kmap_atomic(vcpu->arch.apic->vapic_page); - *(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr)) = data; - kunmap_atomic(vapic); + kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.apic->vapic_cache, &data, + sizeof(u32)); } -void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr) +int kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr) { - vcpu->arch.apic->vapic_addr = vapic_addr; - if (vapic_addr) + if (vapic_addr) { + if (kvm_gfn_to_hva_cache_init(vcpu->kvm, + &vcpu->arch.apic->vapic_cache, + vapic_addr, sizeof(u32))) + return -EINVAL; __set_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention); - else + } else { __clear_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention); + } + + vcpu->arch.apic->vapic_addr = vapic_addr; + return 0; } int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data) diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h index c730ac9fe801..c8b0d0d2da5c 100644 --- a/arch/x86/kvm/lapic.h +++ b/arch/x86/kvm/lapic.h @@ -34,7 +34,7 @@ struct kvm_lapic { */ void *regs; gpa_t vapic_addr; - struct page *vapic_page; + struct gfn_to_hva_cache vapic_cache; unsigned long pending_events; unsigned int sipi_vector; }; @@ -76,7 +76,7 @@ void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data); void kvm_apic_write_nodecode(struct kvm_vcpu *vcpu, u32 offset); void kvm_apic_set_eoi_accelerated(struct kvm_vcpu *vcpu, int vector); -void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr); +int kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr); void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu); void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/mmu_audit.c b/arch/x86/kvm/mmu_audit.c index daff69e21150..1185fe7a7f47 100644 --- a/arch/x86/kvm/mmu_audit.c +++ b/arch/x86/kvm/mmu_audit.c @@ -296,4 +296,4 @@ static struct kernel_param_ops audit_param_ops = { .get = param_get_bool, }; -module_param_cb(mmu_audit, &audit_param_ops, &mmu_audit, 0644); +arch_param_cb(mmu_audit, &audit_param_ops, &mmu_audit, 0644); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 21ef1ba184ae..5d004da1e35d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3214,8 +3214,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, r = -EFAULT; if (copy_from_user(&va, argp, sizeof va)) goto out; - r = 0; - kvm_lapic_set_vapic_addr(vcpu, va.vapic_addr); + r = kvm_lapic_set_vapic_addr(vcpu, va.vapic_addr); break; } case KVM_X86_SETUP_MCE: { @@ -5739,36 +5738,6 @@ static void post_kvm_run_save(struct kvm_vcpu *vcpu) !kvm_event_needs_reinjection(vcpu); } -static int vapic_enter(struct kvm_vcpu *vcpu) -{ - struct kvm_lapic *apic = vcpu->arch.apic; - struct page *page; - - if (!apic || !apic->vapic_addr) - return 0; - - page = gfn_to_page(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT); - if (is_error_page(page)) - return -EFAULT; - - vcpu->arch.apic->vapic_page = page; - return 0; -} - -static void vapic_exit(struct kvm_vcpu *vcpu) -{ - struct kvm_lapic *apic = vcpu->arch.apic; - int idx; - - if (!apic || !apic->vapic_addr) - return; - - idx = srcu_read_lock(&vcpu->kvm->srcu); - kvm_release_page_dirty(apic->vapic_page); - mark_page_dirty(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT); - srcu_read_unlock(&vcpu->kvm->srcu, idx); -} - static void update_cr8_intercept(struct kvm_vcpu *vcpu) { int max_irr, tpr; @@ -6069,11 +6038,6 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) struct kvm *kvm = vcpu->kvm; vcpu->srcu_idx = srcu_read_lock(&kvm->srcu); - r = vapic_enter(vcpu); - if (r) { - srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx); - return r; - } r = 1; while (r > 0) { @@ -6132,8 +6096,6 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx); - vapic_exit(vcpu); - return r; } diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index a7cccb6d7fec..c96314abd144 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -61,6 +61,7 @@ void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte) #if PAGETABLE_LEVELS > 2 void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd) { + struct page *page = virt_to_page(pmd); paravirt_release_pmd(__pa(pmd) >> PAGE_SHIFT); /* * NOTE! For PAE, any changes to the top page-directory-pointer-table @@ -69,7 +70,8 @@ void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd) #ifdef CONFIG_X86_PAE tlb->need_flush_all = 1; #endif - tlb_remove_page(tlb, virt_to_page(pmd)); + pgtable_pmd_page_dtor(page); + tlb_remove_page(tlb, page); } #if PAGETABLE_LEVELS > 3 @@ -209,7 +211,7 @@ static int preallocate_pmds(pmd_t *pmds[]) if (!pmd) failed = true; if (pmd && !pgtable_pmd_page_ctor(virt_to_page(pmd))) { - free_page((unsigned long)pmds[i]); + free_page((unsigned long)pmd); pmd = NULL; failed = true; } diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 7fb24e53d4c8..4f25ec077552 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -518,7 +518,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) sd = &info->sd; sd->domain = domain; sd->node = node; - sd->acpi = device->handle; + sd->companion = device; /* * Maybe the desired pci bus has been already scanned. In such case * it is unnecessary to scan the pci bus with the given domain,busnum. @@ -589,7 +589,7 @@ int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) { struct pci_sysdata *sd = bridge->bus->sysdata; - ACPI_HANDLE_SET(&bridge->dev, sd->acpi); + ACPI_COMPANION_SET(&bridge->dev, sd->companion); return 0; } diff --git a/arch/x86/platform/efi/early_printk.c b/arch/x86/platform/efi/early_printk.c index 6599a0027b76..81b506d5befd 100644 --- a/arch/x86/platform/efi/early_printk.c +++ b/arch/x86/platform/efi/early_printk.c @@ -142,7 +142,7 @@ early_efi_write(struct console *con, const char *str, unsigned int num) efi_y += font->height; } - if (efi_y + font->height >= si->lfb_height) { + if (efi_y + font->height > si->lfb_height) { u32 i; efi_y -= font->height; diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 92c02344a060..cceb813044ef 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -690,13 +690,6 @@ void __init efi_init(void) set_bit(EFI_MEMMAP, &x86_efi_facility); -#ifdef CONFIG_X86_32 - if (efi_is_native()) { - x86_platform.get_wallclock = efi_get_time; - x86_platform.set_wallclock = efi_set_rtc_mmss; - } -#endif - #if EFI_DEBUG print_efi_memmap(); #endif diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c index 0f92173a12b6..efe4d7220397 100644 --- a/arch/x86/platform/uv/tlb_uv.c +++ b/arch/x86/platform/uv/tlb_uv.c @@ -1070,12 +1070,13 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, unsigned long status; bcp = &per_cpu(bau_control, cpu); - stat = bcp->statp; - stat->s_enters++; if (bcp->nobau) return cpumask; + stat = bcp->statp; + stat->s_enters++; + if (bcp->busy) { descriptor_status = read_lmmr(UVH_LB_BAU_SB_ACTIVATION_STATUS_0); diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile index 88692871823f..9cac82588cbc 100644 --- a/arch/x86/realmode/rm/Makefile +++ b/arch/x86/realmode/rm/Makefile @@ -73,9 +73,10 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -m32 -g -Os -D_SETUP -D__KERNEL__ -D_WAKEUP \ -march=i386 -mregparm=3 \ -include $(srctree)/$(src)/../../boot/code16gcc.h \ -fno-strict-aliasing -fomit-frame-pointer -fno-pic \ + -mno-mmx -mno-sse \ $(call cc-option, -ffreestanding) \ $(call cc-option, -fno-toplevel-reorder,\ - $(call cc-option, -fno-unit-at-a-time)) \ + $(call cc-option, -fno-unit-at-a-time)) \ $(call cc-option, -fno-stack-protector) \ $(call cc-option, -mpreferred-stack-boundary=2) KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig index 14ef8d1dbc33..ed56a1c4ae73 100644 --- a/arch/x86/um/Kconfig +++ b/arch/x86/um/Kconfig @@ -31,6 +31,11 @@ config X86_64 def_bool 64BIT select MODULES_USE_ELF_RELA +config ARCH_DEFCONFIG + string + default "arch/um/configs/i386_defconfig" if X86_32 + default "arch/um/configs/x86_64_defconfig" if X86_64 + config RWSEM_XCHGADD_ALGORITHM def_bool 64BIT diff --git a/arch/x86/um/asm/processor_32.h b/arch/x86/um/asm/processor_32.h index 6c6689e574ce..c112de81c9e1 100644 --- a/arch/x86/um/asm/processor_32.h +++ b/arch/x86/um/asm/processor_32.h @@ -33,6 +33,8 @@ struct arch_thread { .faultinfo = { 0, 0, 0 } \ } +#define STACKSLOTS_PER_LINE 8 + static inline void arch_flush_thread(struct arch_thread *thread) { /* Clear any TLS still hanging */ @@ -53,4 +55,7 @@ static inline void arch_copy_thread(struct arch_thread *from, #define current_text_addr() \ ({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; }) +#define current_sp() ({ void *sp; __asm__("movl %%esp, %0" : "=r" (sp) : ); sp; }) +#define current_bp() ({ unsigned long bp; __asm__("movl %%ebp, %0" : "=r" (bp) : ); bp; }) + #endif diff --git a/arch/x86/um/asm/processor_64.h b/arch/x86/um/asm/processor_64.h index 4b02a8455bd1..c3be85205a65 100644 --- a/arch/x86/um/asm/processor_64.h +++ b/arch/x86/um/asm/processor_64.h @@ -19,6 +19,8 @@ struct arch_thread { .fs = 0, \ .faultinfo = { 0, 0, 0 } } +#define STACKSLOTS_PER_LINE 4 + static inline void arch_flush_thread(struct arch_thread *thread) { } @@ -32,4 +34,7 @@ static inline void arch_copy_thread(struct arch_thread *from, #define current_text_addr() \ ({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; }) +#define current_sp() ({ void *sp; __asm__("movq %%rsp, %0" : "=r" (sp) : ); sp; }) +#define current_bp() ({ unsigned long bp; __asm__("movq %%rbp, %0" : "=r" (bp) : ); bp; }) + #endif diff --git a/arch/x86/um/sysrq_32.c b/arch/x86/um/sysrq_32.c index c9bee5b8c0d3..16ee0e450e3e 100644 --- a/arch/x86/um/sysrq_32.c +++ b/arch/x86/um/sysrq_32.c @@ -30,70 +30,4 @@ void show_regs(struct pt_regs *regs) printk(" DS: %04lx ES: %04lx\n", 0xffff & PT_REGS_DS(regs), 0xffff & PT_REGS_ES(regs)); - - show_trace(NULL, (unsigned long *) ®s); } - -/* Copied from i386. */ -static inline int valid_stack_ptr(struct thread_info *tinfo, void *p) -{ - return p > (void *)tinfo && - p < (void *)tinfo + THREAD_SIZE - 3; -} - -/* Adapted from i386 (we also print the address we read from). */ -static inline unsigned long print_context_stack(struct thread_info *tinfo, - unsigned long *stack, unsigned long ebp) -{ - unsigned long addr; - -#ifdef CONFIG_FRAME_POINTER - while (valid_stack_ptr(tinfo, (void *)ebp)) { - addr = *(unsigned long *)(ebp + 4); - printk("%08lx: [<%08lx>]", ebp + 4, addr); - print_symbol(" %s", addr); - printk("\n"); - ebp = *(unsigned long *)ebp; - } -#else - while (valid_stack_ptr(tinfo, stack)) { - addr = *stack; - if (__kernel_text_address(addr)) { - printk("%08lx: [<%08lx>]", (unsigned long) stack, addr); - print_symbol(" %s", addr); - printk("\n"); - } - stack++; - } -#endif - return ebp; -} - -void show_trace(struct task_struct* task, unsigned long * stack) -{ - unsigned long ebp; - struct thread_info *context; - - /* Turn this into BUG_ON if possible. */ - if (!stack) { - stack = (unsigned long*) &stack; - printk("show_trace: got NULL stack, implicit assumption task == current"); - WARN_ON(1); - } - - if (!task) - task = current; - - if (task != current) { - ebp = (unsigned long) KSTK_EBP(task); - } else { - asm ("movl %%ebp, %0" : "=r" (ebp) : ); - } - - context = (struct thread_info *) - ((unsigned long)stack & (~(THREAD_SIZE - 1))); - print_context_stack(context, stack, ebp); - - printk("\n"); -} - diff --git a/arch/x86/um/sysrq_64.c b/arch/x86/um/sysrq_64.c index a0e7fb1134a0..38b4e4abd0f8 100644 --- a/arch/x86/um/sysrq_64.c +++ b/arch/x86/um/sysrq_64.c @@ -12,7 +12,7 @@ #include <asm/ptrace.h> #include <asm/sysrq.h> -void __show_regs(struct pt_regs *regs) +void show_regs(struct pt_regs *regs) { printk("\n"); print_modules(); @@ -33,9 +33,3 @@ void __show_regs(struct pt_regs *regs) printk(KERN_INFO "R13: %016lx R14: %016lx R15: %016lx\n", PT_REGS_R13(regs), PT_REGS_R14(regs), PT_REGS_R15(regs)); } - -void show_regs(struct pt_regs *regs) -{ - __show_regs(regs); - show_trace(current, (unsigned long *) ®s); -} diff --git a/arch/x86/um/vdso/.gitignore b/arch/x86/um/vdso/.gitignore new file mode 100644 index 000000000000..9cac6d072199 --- /dev/null +++ b/arch/x86/um/vdso/.gitignore @@ -0,0 +1,2 @@ +vdso-syms.lds +vdso.lds |