From: Peter Zijlstra <peterz@infradead.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org,
David.Kaplan@amd.com, Andrew.Cooper3@citrix.com,
jpoimboe@kernel.org, gregkh@linuxfoundation.org,
nik.borisov@suse.com
Subject: [PATCH v2 00/11] Fix up SRSO stuff
Date: Mon, 14 Aug 2023 13:44:26 +0200 [thread overview]
Message-ID: <20230814114426.057251214@infradead.org> (raw)
Hi!
Second version of the SRSO fixes/cleanup.
I've redone some, reorderd most and left out the interface bits entirely for
now. Although I do strongly feel the extra interface is superfluous (and ugly).
This is based on top of current tip/x86/urgent 833fd800bf56.
The one open techinical issue I have with the mitigation is the alignment of
the RET inside srso_safe_ret(). The details given for retbleed stated that RET
should be on a 64byte boundary, which is not the case here.
I'll go prod at bringing the rest of the patches forward after I stare at some
other email.
next reply other threads:[~2023-08-14 12:20 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-14 11:44 Peter Zijlstra [this message]
2023-08-14 11:44 ` [PATCH v2 01/11] x86/cpu: Fixup __x86_return_thunk Peter Zijlstra
2023-08-16 7:55 ` [tip: x86/urgent] x86/cpu: Fix __x86_return_thunk symbol type tip-bot2 for Peter Zijlstra
2023-08-14 11:44 ` [PATCH v2 02/11] x86/cpu: Fix up srso_safe_ret() and __x86_return_thunk() Peter Zijlstra
2023-08-16 7:55 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2023-08-14 11:44 ` [PATCH v2 03/11] objtool/x86: Fix SRSO mess Peter Zijlstra
2023-08-14 12:54 ` Andrew.Cooper3
2023-08-16 7:55 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2023-08-16 11:59 ` Peter Zijlstra
2023-08-16 20:31 ` Josh Poimboeuf
2023-08-16 22:08 ` [PATCH] objtool/x86: Fixup frame-pointer vs rethunk Peter Zijlstra
2023-08-16 22:22 ` Josh Poimboeuf
2023-08-17 8:39 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2023-08-14 11:44 ` [PATCH v2 04/11] x86/alternative: Make custom return thunk unconditional Peter Zijlstra
2023-08-16 7:55 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2023-08-14 11:44 ` [PATCH v2 05/11] x86/cpu: Clean up SRSO return thunk mess Peter Zijlstra
2023-08-14 13:02 ` Borislav Petkov
2023-08-14 17:48 ` Borislav Petkov
2023-08-15 21:29 ` Nathan Chancellor
2023-08-15 22:43 ` Peter Zijlstra
2023-08-16 7:38 ` Borislav Petkov
2023-08-16 14:52 ` Nathan Chancellor
2023-08-16 15:08 ` Borislav Petkov
2023-08-16 7:55 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2023-08-16 18:58 ` Nathan Chancellor
2023-08-16 19:24 ` Borislav Petkov
2023-08-16 19:30 ` Nathan Chancellor
2023-08-16 19:42 ` Borislav Petkov
2023-08-16 19:57 ` Borislav Petkov
2023-08-16 21:20 ` tip-bot2 for Peter Zijlstra
2023-08-14 11:44 ` [PATCH v2 06/11] x86/cpu: Rename original retbleed methods Peter Zijlstra
2023-08-14 19:41 ` Josh Poimboeuf
2023-08-16 7:55 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2023-08-16 21:20 ` tip-bot2 for Peter Zijlstra
2023-08-14 11:44 ` [PATCH v2 07/11] x86/cpu: Rename srso_(.*)_alias to srso_alias_\1 Peter Zijlstra
2023-08-16 7:55 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2023-08-16 21:20 ` tip-bot2 for Peter Zijlstra
2023-08-14 11:44 ` [PATCH v2 08/11] x86/cpu: Cleanup the untrain mess Peter Zijlstra
2023-08-16 7:55 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2023-08-16 21:20 ` tip-bot2 for Peter Zijlstra
2023-08-14 11:44 ` [PATCH v2 09/11] x86/cpu/kvm: Provide UNTRAIN_RET_VM Peter Zijlstra
2023-08-16 7:55 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2023-08-16 21:20 ` tip-bot2 for Peter Zijlstra
2023-08-14 11:44 ` [PATCH v2 10/11] x86/alternatives: Simplify ALTERNATIVE_n() Peter Zijlstra
2023-08-15 20:49 ` Nikolay Borisov
2023-08-15 22:44 ` Peter Zijlstra
2023-09-07 8:31 ` Borislav Petkov
2023-09-07 11:09 ` Peter Zijlstra
2023-09-07 11:11 ` Peter Zijlstra
2023-09-07 11:16 ` Peter Zijlstra
2023-09-07 15:06 ` Borislav Petkov
2023-09-07 15:30 ` Borislav Petkov
2023-09-09 7:50 ` Borislav Petkov
2023-09-09 9:25 ` Peter Zijlstra
2023-09-09 9:42 ` Peter Zijlstra
2023-09-10 14:42 ` Borislav Petkov
2023-09-12 9:27 ` Peter Zijlstra
2023-09-12 9:44 ` Peter Zijlstra
2023-09-13 4:37 ` Borislav Petkov
2023-09-13 8:46 ` Peter Zijlstra
2023-09-13 14:38 ` Borislav Petkov
2023-09-13 16:14 ` Peter Zijlstra
2023-09-15 7:46 ` Peter Zijlstra
2023-09-15 7:51 ` Peter Zijlstra
2023-09-15 12:05 ` Borislav Petkov
2023-09-13 4:24 ` Borislav Petkov
2023-08-14 11:44 ` [PATCH v2 11/11] x86/cpu: Use fancy alternatives to get rid of entry_untrain_ret() Peter Zijlstra
2023-08-14 16:44 ` [PATCH v2 00/11] Fix up SRSO stuff Borislav Petkov
2023-08-14 19:51 ` Josh Poimboeuf
2023-08-14 19:57 ` Borislav Petkov
2023-08-14 20:01 ` Josh Poimboeuf
2023-08-14 20:09 ` Borislav Petkov
2023-08-15 14:26 ` [PATCH] x86/srso: Explain the untraining sequences a bit more Borislav Petkov
2023-08-15 15:41 ` Nikolay Borisov
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