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x86, cpufeature: Convert more "features" to bugs

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X86_FEATURE_FXSAVE_LEAK, X86_FEATURE_11AP and
X86_FEATURE_CLFLUSH_MONITOR are not really features but synthetic bits
we use for applying different bug workarounds. Call them what they
really are, and make sure they get the proper cross-CPU behavior (OR
rather than AND).

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1403042783-23278-1-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Borislav Petkov
2014-06-18 00:06:23 +02:00
committed by H. Peter Anvin
parent 03ab3da3b2
commit 9b13a93df2
6 changed files with 23 additions and 20 deletions
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arch/x86/include/asm/mwait.h
+1 -1
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@@ -43,7 +43,7 @@ static inline void __mwait(unsigned long eax, unsigned long ecx)
static inline void mwait_idle_with_hints(unsigned long eax, unsigned long ecx)
{
if (!current_set_polling_and_test()) {
if (static_cpu_has(X86_FEATURE_CLFLUSH_MONITOR)) {
if (static_cpu_has_bug(X86_BUG_CLFLUSH_MONITOR)) {
mb();
clflush((void *)&current_thread_info()->flags);
mb();