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(parent: c34ffb2) | patch
x86/speculation: Fix firmware entry SPEC_CTRL handling
authorJosh Poimboeuf <jpoimboe@kernel.org>
Thu, 27 Oct 2022 20:55:20 +0000 (13:55 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 1 Nov 2022 18:14:45 +0000 (19:14 +0100)
commit9356fb0d346c36d1f30f331528c33b4fee22873c
treec763076e1a79acd1ce7ec03a2537932416209a91tree | snapshot
parentc34ffb2a83b9bf4724515a944583f931973a80f6commit | 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 | blame | history
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