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/linux/Documentation/arch/x86/
H A Dshstk.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Control-flow Enforcement Technology (CET) Shadow Stack
10 Control-flow Enforcement Technology (CET) covers several related x86 processor
20 control-protection fault. IBT verifies indirect CALL/JMP targets are intended
22 Stack and Indirect Branch Tracking. Today in the 64-bit kernel, only userspace
44 An application's CET capability is marked in its ELF note and can be verified
45 from readelf/llvm-readelf output::
47 readelf -n <application> | grep -a SHSTK
60 on a per-thread basis. The enablement status is inherited on clone, so if the
90 -EPERM if any of the passed feature are locked.
[all …]
H A Dintel_txt.rst6 Technology (Intel(R) TXT), defines platform-level enhancements that
13 - Provides dynamic root of trust for measurement (DRTM)
14 - Data protection in case of improper shutdown
15 - Measurement and verification of launched environment
18 non-vPro systems. It is currently available on desktop systems
30 - LinuxTAG 2008:
31 http://www.linuxtag.org/2008/en/conf/events/vp-donnerstag.html
33 - TRUST2008:
34 http://www.trust-conference.eu/downloads/Keynote-Speakers/
35 3_David-Grawrock_The-Front-Door-of-Trusted-Computing.pdf
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/linux/Documentation/devicetree/bindings/arm/
H A Darm,corstone1000.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
11 - Hugues Kamba Mpiana <hugues.kambampiana@arm.com>
14 ARM's Corstone1000 includes pre-verified Corstone SSE-710 subsystem that
19 systems for M-Class (or other) processors for adding sensors, connectivity,
25 seamless integration of the optional CryptoCell™-312 cryptographic
33 - description: Corstone1000 MPS3 it has 1 Cortex-A35 CPU core in a FPGA
37 - const: arm,corstone1000-mps3
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/linux/Documentation/security/tpm/
H A Dtpm-security.rst1 .. SPDX-License-Identifier: GPL-2.0-only
12 ------------
22 -----------------------------------------------
42 ---------------------------
68 ----------------
77 ---------------------------------------
104 name, which is what is exported via sysfs so user-space can run the
112 --------------
116 hands to user-space the name of the derived null seed key which can
117 then be verified by certification in user-space. Therefore, this chain
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/linux/tools/testing/selftests/net/tcp_ao/
H A Dseq-ext.c1 // SPDX-License-Identifier: GPL-2.0
2 /* Check that after SEQ number wrap-around:
3 * 1. SEQ-extension has upper bytes set
18 /* Move them closer to roll-over */
25 /* make them roll-over during quota, but on different segments */ in test_adjust_seqs()
27 new_seq1 = ((uint32_t)-1) - msg_len; in test_adjust_seqs()
28 new_seq2 = ((uint32_t)-1) - (quota - 2 * msg_len); in test_adjust_seqs()
30 new_seq1 = ((uint32_t)-1) - (quota - 2 * msg_len); in test_adjust_seqs()
31 new_seq2 = ((uint32_t)-1) - msg_len; in test_adjust_seqs()
34 img->in.seq = new_seq1; in test_adjust_seqs()
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H A Drestore.c1 // SPDX-License-Identifier: GPL-2.0
3 /* This is over-simplified TCP_REPAIR for TCP_ESTABLISHED sockets
4 * It tests that TCP-AO enabled connection can be restored.
6 * https://github.com/checkpoint-restore/criu/blob/criu-dev/soccr/soccr.h
30 if (test_add_key(lsk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100)) in try_server_run()
85 synchronize_threads(); /* 4: verified => closed */ in try_server_run()
94 try_server_run("TCP-AO migrate to another socket (server)", port++, in server_fn()
96 try_server_run("TCP-AO with wrong send ISN (server)", port++, in server_fn()
98 try_server_run("TCP-AO with wrong receive ISN (server)", port++, in server_fn()
100 try_server_run("TCP-AO with wrong send SEQ ext number (server)", port++, in server_fn()
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/linux/fs/nfsd/
H A Dnfsfh.c1 // SPDX-License-Identifier: GPL-2.0
7 * Extensive rewrite by Neil Brown <neilb@cse.unsw.edu.au> Southern-Spring 1999
8 * ... and again Southern-Winter 2001 to support export_operations
25 * if not, require that we can walk up to exp->ex_dentry
35 if (exp->ex_flags & NFSEXP_NOSUBTREECHECK) in nfsd_acceptable()
39 while (tdentry != exp->ex_path.dentry && !IS_ROOT(tdentry)) { in nfsd_acceptable()
52 if (tdentry != exp->ex_path.dentry) in nfsd_acceptable()
54 rv = (tdentry == exp->ex_path.dentry); in nfsd_acceptable()
67 umode_t mode = d_inode(dentry)->i_mode & S_IFMT; in nfsd_mode_check()
97 if (cred->cr_flavor >= RPC_AUTH_GSS) in nfsd_originating_port_ok()
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/linux/Documentation/w1/slaves/
H A Dw1_therm.rst16 -----------
49 -1 if at least one sensor still in conversion, 1 if conversion is complete
72 the sensor. Resolution is reset when the sensor gets power-cycled.
81 Some non-genuine DS18B20 chips are fixed in 12-bit mode only, so the actual
82 resolution is read back from the chip and verified.
86 The write-only sysfs entry ``eeprom_cmd`` is an alternative for EEPROM operations.
94 Values shall be space separated and in the device range (typical -55 degC
106 be force-enabled.
118 location of the chip in the 1-wire bus without needing pre-existing
133 Documentation/ABI/testing/sysfs-driver-w1_therm
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/linux/Documentation/crypto/
H A Dasymmetric-keys.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Asymmetric / Public-key Cryptography Key Type
9 - Overview.
10 - Key identification.
11 - Accessing asymmetric keys.
12 - Signature verification.
13 - Asymmetric key subtypes.
14 - Instantiation data parsers.
15 - Keyring link restrictions.
22 public-key cryptography, without imposing any particular restrictions on the
[all …]
/linux/Documentation/filesystems/
H A Dorangefs.rst1 .. SPDX-License-Identifier: GPL-2.0
7 OrangeFS is an LGPL userspace scale-out parallel storage system. It is ideal
51 On Fedora, install orangefs and orangefs-server::
53 dnf -y install orangefs orangefs-server
64 pvfs2-client-core.
68 pvfs2-server -f /etc/orangefs/orangefs.conf
72 systemctl start orangefs-server
76 pvfs2-ping -m /pvfsmnt
81 systemctl start orangefs-client
85 mount -t pvfs2 tcp://localhost:3334/orangefs /pvfsmnt
[all …]
/linux/fs/jfs/
H A Dxattr.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) International Business Machines Corp., 2000-2004
27 * Overall design --
34 * where <name> is constructed from a null-terminated ascii string
36 * (1 ... 65535 bytes). The in-memory format is
39 * +-------+--------+--------+----------------+-------------------+
42 * +-------+--------+--------+----------------+-------------------+
47 * +------------+-------------------+--------------------+-----
50 * +------------+-------------------+--------------------+-----
52 * On-disk:
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/linux/tools/bpf/bpftool/Documentation/
H A Dbpftool-gen.rst1 .. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 bpftool-gen
6 ---
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/linux/drivers/phy/rockchip/
H A Dphy-rockchip-usbdp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (C) 2021-2024 Rockchip Electronics Co., Ltd
9 #include <dt-bindings/phy/phy.h>
115 /* u2phy-grf */
119 /* usb-grf */
123 /* usbdpphy-grf */
129 /* vo-grf */
179 bool hs; /* flag for high-speed */
206 /* voltage swing 0, pre-emphasis 0->3 */
214 /* voltage swing 1, pre-emphasis 0->2 */
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/linux/drivers/net/ethernet/netronome/nfp/flower/
H A Doffload.c1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 /* Copyright (C) 2017-2018 Netronome Systems, Inc. */
103 key_len = nfp_flow->meta.key_len; in nfp_flower_xmit_flow()
104 mask_len = nfp_flow->meta.mask_len; in nfp_flower_xmit_flow()
105 act_len = nfp_flow->meta.act_len; in nfp_flower_xmit_flow()
112 nfp_flow->meta.key_len >>= NFP_FL_LW_SIZ; in nfp_flower_xmit_flow()
113 nfp_flow->meta.mask_len >>= NFP_FL_LW_SIZ; in nfp_flower_xmit_flow()
114 nfp_flow->meta.act_len >>= NFP_FL_LW_SIZ; in nfp_flower_xmit_flow()
118 return -ENOMEM; in nfp_flower_xmit_flow()
121 memcpy(msg, &nfp_flow->meta, meta_len); in nfp_flower_xmit_flow()
[all …]
H A Daction.c1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 /* Copyright (C) 2017-2018 Netronome Systems, Inc. */
39 push_mpls->head.jump_id = NFP_FL_ACTION_OPCODE_PUSH_MPLS; in nfp_fl_push_mpls()
40 push_mpls->head.len_lw = act_size >> NFP_FL_LW_SIZ; in nfp_fl_push_mpls()
43 if (act->mpls_push.bos != ACT_MPLS_BOS_NOT_SET) { in nfp_fl_push_mpls()
44 mpls_lse |= act->mpls_push.bos << MPLS_LS_S_SHIFT; in nfp_fl_push_mpls()
47 return -EOPNOTSUPP; in nfp_fl_push_mpls()
51 if (act->mpls_push.tc != ACT_MPLS_TC_NOT_SET) in nfp_fl_push_mpls()
52 mpls_lse |= act->mpls_push.tc << MPLS_LS_TC_SHIFT; in nfp_fl_push_mpls()
54 /* Proto, label and TTL are enforced and verified for MPLS push. */ in nfp_fl_push_mpls()
[all …]
/linux/drivers/net/ethernet/cavium/liquidio/
H A Dliquidio_common.h7 * Copyright (c) 2003-2016 Cavium, Inc.
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
19 * \brief Common: Structures and macros used in PCI-NIC package by core and
50 /* pre-defined host->NIC tag values */
60 /* Subcodes are used by host driver/apps to identify the sub-operation
85 #define VF_DRV_REMOVED -1
101 #define CVM_DRV_APP_END (CVM_DRV_INVALID_APP - 1)
123 index = index + count - max; in incr_index()
149 /*--------------------------- SCATTER GATHER ENTRY -----------------------*/
151 /* The Scatter-Gather List Entry. The scatter or gather component used with
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/linux/drivers/md/
H A Ddm-verity-target.c1 // SPDX-License-Identifier: GPL-2.0-only
7 * Based on Chromium dm-verity driver (C) 2011 The Chromium OS Authors
16 #include "dm-verity.h"
17 #include "dm-verity-fec.h"
18 #include "dm-verity-verify-sig.h"
19 #include "dm-audit.h"
72 * Auxiliary structure appended to each dm-bufio buffer. If the value
73 * hash_verified is nonzero, hash of the block has been verified.
94 aux->hash_verified = 0; in dm_bufio_alloc_callback()
102 return dm_target_offset(v->ti, bi_sector); in verity_map_sector()
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/linux/tools/testing/selftests/bpf/verifier/
H A Dcalls.c25 "calls: invalid kfunc call: ptr_to_mem to struct with non-scalar",
28 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
43 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
58 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
70 "calls: invalid kfunc call: reg->type != PTR_TO_CTX",
73 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
88 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
100 "calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX",
103 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -
[all...]
/linux/net/sched/
H A Dsch_mqprio.c1 // SPDX-License-Identifier: GPL-2.0-only
46 switch (priv->mode) { in mqprio_enable_offload()
48 if (priv->shaper != TC_MQPRIO_SHAPER_DCB) in mqprio_enable_offload()
49 return -EINVAL; in mqprio_enable_offload()
52 mqprio.flags = priv->flags; in mqprio_enable_offload()
53 if (priv->flags & TC_MQPRIO_F_MODE) in mqprio_enable_offload()
54 mqprio.mode = priv->mode; in mqprio_enable_offload()
55 if (priv->flags & TC_MQPRIO_F_SHAPER) in mqprio_enable_offload()
56 mqprio.shaper = priv->shaper; in mqprio_enable_offload()
57 if (priv->flags & TC_MQPRIO_F_MIN_RATE) in mqprio_enable_offload()
[all …]
/linux/Documentation/dev-tools/
H A Dkasan.rst1 .. SPDX-License-Identifier: GPL-2.0
8 --------
11 designed to find out-of-bounds and use-after-free bugs.
16 2. Software Tag-Based KASAN
17 3. Hardware Tag-Based KASAN
23 Software Tag-Based KASAN or SW_TAGS KASAN, enabled with CONFIG_KASAN_SW_TAGS,
26 using it for testing on memory-restricted devices with real workloads.
28 Hardware Tag-Based KASAN or HW_TAGS KASAN, enabled with CONFIG_KASAN_HW_TAGS,
29 is the mode intended to be used as an in-field memory bug detector or as a
37 The Generic and the Software Tag-Based modes are commonly referred to as the
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/linux/mm/
H A Dzswap.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * zswap.c - zswap driver file
7 * RAM-based memory pool. This can result in a significant I/O reduction on
31 #include <linux/page-flags.h>
119 /* Enable/disable memory pressure-based shrinker. */
148 * The lock ordering is zswap_tree.lock -> zswap_pool.lru_lock.
151 * needs to be verified that it's still valid in the tree.
178 * swpentry - associated swap entry, the offset indexes into the red-black tree
179 * length - the length in bytes of the compressed page data. Needed during
181 * referenced - true if the entry recently entered the zswap pool. Unset by the
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/linux/drivers/gpu/drm/amd/display/amdgpu_dm/
H A Damdgpu_dm_debugfs.c1 // SPDX-License-Identifier: MIT
29 #include <media/cec-notifier.h>
68 /* parse_write_buffer_into_params - Helper function to parse debugfs write buffer into an array
95 return -EFAULT; in parse_write_buffer_into_params()
109 /* skip non-space*/ in parse_write_buffer_into_params()
158 * debugfs is located at /sys/kernel/debug/dri/0/DP-x/link_settings
160 * --- to get dp configuration
162 * cat /sys/kernel/debug/dri/0/DP-x/link_settings
164 * It will list current, verified, reported, preferred dp configuration.
165 * current -- for current video mode
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/linux/arch/powerpc/include/asm/book3s/64/
H A Dmmu-hash.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
13 #include <asm/asm-const.h>
46 #define SLB_VSID_N ASM_CONST(0x0000000000000200) /* no-execute */
167 * taken as such, concurrent access on pre POWER5 hardware could result
192 return -1; in shift_to_mmu_psize()
211 return -1; in ap_to_shift()
285 lp = (l >> LP_SHIFT) & ((1 << LP_BITS) - 1); in __hpte_page_size()
315 * to use 4k pages when they create cache-inhibited mappings.
330 * The AVA field omits the low-order 23 bits of the 78 bits VA. in hpte_encode_avpn()
332 * low-order b of these bits are part of the byte offset in hpte_encode_avpn()
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/linux/fs/erofs/
H A Dsuper.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2017-2018 HUAWEI, Inc.
13 #include <linux/backing-dev.h>
34 KERN_SOH_ASCII, level, sb->s_id, &vaf); in _erofs_printk()
43 u32 len = 1 << EROFS_SB(sb)->blkszbits, crc; in erofs_superblock_csum_verify()
46 len -= EROFS_SUPER_OFFSET; in erofs_superblock_csum_verify()
47 len -= offsetof(struct erofs_super_block, checksum) + in erofs_superblock_csum_verify()
48 sizeof(dsb->checksum); in erofs_superblock_csum_verify()
50 /* skip .magic(pre-verified) and .checksum(0) fields */ in erofs_superblock_csum_verify()
51 crc = crc32c(0x5045B54A, (&dsb->checksum) + 1, len); in erofs_superblock_csum_verify()
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/linux/fs/cramfs/
H A Dinode.c36 * cramfs super-block data in memory
51 return sb->s_fs_info; in CRAMFS_SB()
64 #define OFFSET(x) ((x)->i_ino)
68 if (!cino->offset) in cramino()
70 if (!cino->size) in cramino()
75 * cramfs_inode->offset is set to a non zero value for entries in cramino()
78 switch (cino->mode & S_IFMT) { in cramino()
82 return cino->offset << 2; in cramino()
97 return ERR_PTR(-ENOMEM); in get_cramfs_inode()
98 if (!(inode->i_state & I_NEW)) in get_cramfs_inode()
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