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x86/retpoline: Cleanup some #ifdefery

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commit 369ae6ffc41a3c1137cab697635a84d0cc7cdcea upstream.

On it's own not much of a cleanup but it prepares for more/similar
code.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
[cascardo: conflict fixup because of DISABLE_ENQCMD]
[cascardo: no changes at nospec-branch.h and bpf_jit_comp.c]
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Zijlstra
2022-06-14 23:15:34 +02:00
committed by Greg Kroah-Hartman
parent feec5277d5
commit 6a2b142886
1 changed files with 8 additions and 1 deletions
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9
arch/x86/include/asm/disabled-features.h
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@@ -56,6 +56,13 @@
# define DISABLE_PTI (1 << (X86_FEATURE_PTI & 31))
#endif
#ifdef CONFIG_RETPOLINE
# define DISABLE_RETPOLINE 0
#else
# define DISABLE_RETPOLINE ((1 << (X86_FEATURE_RETPOLINE & 31)) | \
(1 << (X86_FEATURE_RETPOLINE_LFENCE & 31)))
#endif
/* Force disable because it's broken beyond repair */
#define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31))
@@ -73,7 +80,7 @@
#define DISABLED_MASK8 0
#define DISABLED_MASK9 (DISABLE_SMAP)
#define DISABLED_MASK10 0
#define DISABLED_MASK11 0
#define DISABLED_MASK11 (DISABLE_RETPOLINE)
#define DISABLED_MASK12 0
#define DISABLED_MASK13 0
#define DISABLED_MASK14 0