Lines Matching +full:off +full:- +full:by

1 .. SPDX-License-Identifier: GPL-2.0
3 TAA - TSX Asynchronous Abort
7 data which is available in various CPU internal buffers by using asynchronous
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28    CVE-2019-11135  TAA    TSX Asynchronous Abort (TAA) condition on some
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43 hardware transactional memory support to improve performance of multi-threaded
58 Because the buffers are potentially shared between Hyper-Threads cross
59 Hyper-Thread attacks are possible.
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81 privilege escalation by using this technique.
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96 .. list-table::
98    * - 'Vulnerable'
99 …- The CPU is affected by this vulnerability and the microcode and kernel mitigation are not applie…
100    * - 'Vulnerable: Clear CPU buffers attempted, no microcode'
101      - The processor is vulnerable but microcode is not updated. The
114    * - 'Mitigation: Clear CPU buffers'
115      - The microcode has been updated to clear the buffers. TSX is still enabled.
116    * - 'Mitigation: TSX disabled'
117      - TSX is disabled.
118    * - 'Not affected'
119      - The CPU is not affected by this issue.
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126 enables the mitigation by default.
135 Affected systems where the host has TAA microcode and TAA is mitigated by
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152   off		This option disables the TAA mitigation on affected platforms.
158                 systems which are MDS-affected and deploy MDS mitigation,
165                 CPU is not vulnerable to cross-thread TAA attacks.
169 processors that are affected by both TAA and MDS, specifying just
170 "tsx_async_abort=off" without an accompanying "mds=off" will have no
181   off		Disables TSX on the system.
193                 several previous speculation-related CVEs, and so there may be
200 Not specifying this option is equivalent to "tsx=off".
203 affected platforms tsx=auto is equivalent to tsx=off and the result will be:
207                                           buffers. Cross-thread attacks are still
209   tsx=on     tsx_async_abort=full,nosmt   As above, cross-thread attacks on SMT
211   tsx=on     tsx_async_abort=off          The system is vulnerable.
212   tsx=off    tsx_async_abort=full         TSX might be disabled if microcode
215   tsx=off    tsx_async_abort=full,nosmt   Ditto
216   tsx=off    tsx_async_abort=off          ditto
236     1          X            1        MDS fixed, TAA can be mitigated by
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266 -------------------
270   - Deploy TSX disable mitigation (tsx_async_abort=full tsx=off).