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(parent: d427c1f) | 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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 23 Jul 2022 10:54:07 +0000 (12:54 +0200)
commite898e28762f830592d723ddb34db8a86735a2e70
tree1e785cf9690f6772594bd9aa17cd64539ca8831ctree | snapshot
parentd427c1f83e8cab913c52d047b891ee895f989e61commit | diff
x86/speculation: Fix firmware entry SPEC_CTRL handling

commit e6aa13622ea8283cc699cac5d018cc40a2ba2010 upstream.

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>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/include/asm/nospec-branch.h diff | blob | history
Domain: System / Kernel;