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Searched refs:speculative (Results 1 – 25 of 33) sorted by relevance

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/linux/Documentation/admin-guide/hw-vuln/
H A Dspectre.rst7 and speculative execution on modern CPUs to read memory, possibly
18 use branch prediction and speculative execution.
53 CPUs use speculative operations to improve performance. That may leave
56 influence the speculative execution paths, and then use the side effects
57 of the speculative execution in the CPUs' caches and buffers to infer
58 privileged data touched during the speculative execution.
60 Spectre variant 1 attacks take advantage of speculative execution of
61 conditional branches, while Spectre variant 2 attacks use speculative
70 of speculative execution that bypasses conditional branch instructions
74 done speculatively before validation checks resolve. Such speculative
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H A Dsrso.rst6 This is a mitigation for the speculative return stack overflow (SRSO)
22 control the speculative target of a subsequent kernel RET, potentially
23 leading to information disclosure via a speculative side-channel.
H A Dmds.rst5 unprivileged speculative access to data which is available in various CPU
54 may be able to forward this speculative data to a disclosure gadget which
H A Dtsx_async_abort.rst6 TAA is a hardware vulnerability that allows unprivileged speculative access to
29 microprocessors utilizing speculative execution may
H A Dgather_data_sampling.rst7 speculative access to data which was previously stored in vector registers.
H A Dl1tf.rst5 speculative access to data which is available in the Level 1 Data Cache
48 then speculative execution ignores the invalid PTE and loads the referenced
52 While this is a purely speculative mechanism and the instruction will raise
54 data and making it available to other speculative instructions opens up the
/linux/Documentation/ABI/testing/
H A Dconfigfs-most59 creation of the link. In case of speculative
114 creation of the link. In case of speculative
169 creation of the link. In case of speculative
235 creation of the link. In case of speculative
/linux/arch/alpha/lib/
H A Dev67-strchr.S59 cttz t0, a2 # U0 : speculative (in case we get a match)
76 cttz t3, a2 # U0 : speculative (in case we get a match)
H A Dev6-memset.S166 addq $5, 128, $4 # E : speculative target of next wh64
344 addq $5, 128, $4 # E : speculative target of next wh64
532 addq $5, 128, $4 # E : speculative target of next wh64
/linux/Documentation/staging/
H A Dspeculation.rst11 employ speculative execution techniques such as branch prediction, performing
14 Typically speculative execution cannot be observed from architectural state,
/linux/kernel/bpf/
H A DKconfig62 Enables BPF JIT and removes BPF interpreter to avoid speculative
85 speculative execution side-channel vulnerabilities on unmitigated
H A Dverifier.c1651 dst_state->speculative = src->speculative; in copy_verifier_state()
1919 bool speculative) in push_stack() argument
1938 elem->st.speculative |= speculative; in push_stack()
13682 if (vstate->speculative) in sanitize_ptr_alu()
13761 if (!vstate->speculative) in sanitize_mark_insn_seen()
18252 if (old->speculative && !cur->speculative) in states_equal()
18983 env->cur_state->speculative ? in do_check()
19007 env->cur_state->speculative ? in do_check()
22177 state->speculative = false; in do_check_common()
/linux/arch/sh/
H A DKconfig.cpu69 This enables support for a speculative instruction fetch for
/linux/Documentation/driver-api/mmc/
H A Dmmc-async-req.rst10 It depends. Fast eMMC and multiple cache levels with speculative cache
/linux/Documentation/filesystems/ext4/
H A Dallocators.rst21 unused speculative allocations are of course freed, but if the
/linux/drivers/staging/most/Documentation/
H A Ddriver_usage.txt154 case of speculative configuration, the creation is post-poned until
175 In case of speculative configuration, the creation is post-poned
/linux/arch/x86/
H A DKconfig2518 vulnerabilities (usually related to speculative execution).
2541 bool "Avoid speculative indirect branches in kernel"
2546 kernel-to-user data leaks by avoiding speculative indirect
2616 bool "Mitigate speculative RAS overflow on AMD"
2638 vulnerability which allows unprivileged speculative access to data
2649 allows unprivileged speculative access to stale data previously
2669 a hardware vulnerability which allows unprivileged speculative access
2679 vulnerability that allows unprivileged speculative access to data
2702 hardware vulnerability which allows unprivileged speculative access to data
2712 with Return Instructions) vulnerability. RETBleed is a speculative
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/linux/include/linux/
H A Dbpf_verifier.h429 bool speculative; member
/linux/arch/s390/
H A DKconfig583 regard to speculative execution.
596 prompt "Avoid speculative indirect branches in the kernel"
599 against kernel-to-user data leaks by avoiding speculative indirect
/linux/Documentation/translations/ko_KR/
H A Dmemory-barriers.txt394 유예, 메모리 오퍼레이션들의 조합, 예측적 로드(speculative load), 브랜치
395 예측(speculative branch prediction), 다양한 종류의 캐싱(caching) 등의 다양한
/linux/tools/testing/selftests/bpf/
H A DREADME.rst145 verifier to understand such speculative pointer arithmetic.
/linux/fs/afs/
H A Dinode.c398 if (vp->speculative && in afs_vnode_commit_status()
H A Dinternal.h851 bool speculative:1; /* T if speculative status fetch (no vnode lock) */ member
/linux/Documentation/admin-guide/
H A Dxfs.rst284 with unused speculative preallocation runs. The scan
/linux/Documentation/driver-api/
H A Ddevice-io.rst307 * No speculative operations - the CPU may not issue a read or write to this

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