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(parent: 80714ec) | patch
x86/speculation: Fix SPEC_CTRL write on SMT state change
authorJosh Poimboeuf <jpoimboe@kernel.org>
Tue, 14 Jun 2022 21:16:07 +0000 (23:16 +0200)
committerBorislav Petkov <bp@suse.de>
Mon, 27 Jun 2022 08:34:00 +0000 (10:34 +0200)
commit61e5ee68a8d396858485f15667701e4b78bcf7e0
treea6e1ada3a4703390ea0f2c874fc0e8552acf050ctree | snapshot
parent80714ece31a61abdcf90b88c39007d80a6406d5ccommit | diff
x86/speculation: Fix SPEC_CTRL write on SMT state change

If the SMT state changes, SSBD might get accidentally disabled.  Fix
that.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
arch/x86/kernel/cpu/bugs.c diff | blob | history
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