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(parent: b2620fa) | patch
x86/speculation: Fix firmware entry SPEC_CTRL handling
authorJosh Poimboeuf <jpoimboe@kernel.org>
Tue, 14 Jun 2022 21:16:06 +0000 (23:16 +0200)
committerBorislav Petkov <bp@suse.de>
Mon, 27 Jun 2022 08:34:00 +0000 (10:34 +0200)
commite6aa13622ea8283cc699cac5d018cc40a2ba2010
tree7a189ef16a3c7e33668cf1fadaa2778643b5d26btree | snapshot
parentb2620facef4889fefcbf2e87284f34dcd4189bcecommit | diff
x86/speculation: Fix firmware entry SPEC_CTRL handling

The firmware entry code may accidentally clear STIBP or SSBD. 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/include/asm/nospec-branch.h diff | blob | history
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