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authorLinus Torvalds2019-07-08 12:23:00 -0700
committerLinus Torvalds2019-07-08 12:23:00 -0700
commit223cea6a4f0552b86fb25e3b8bbd00469816cd7a (patch)
treeb1470f93d7b9b996634f1be7fbee2d924aba6f0d /arch/x86/include/asm
parent2f0f6503e37551eb8d8d5e4d27c78d28a30fed5a (diff)
parent993773d11d45c90cb1c6481c2638c3d9f092ea5b (diff)
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 pti updates from Thomas Gleixner: "The speculative paranoia departement delivers a few more plugs for possible (probably theoretical) spectre/mds leaks" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tls: Fix possible spectre-v1 in do_get_thread_area() x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg() x86/speculation/mds: Eliminate leaks by trace_hardirqs_on()
Diffstat (limited to 'arch/x86/include/asm')
-rw-r--r--arch/x86/include/asm/mwait.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h
index eb0f80ce8524..e28f8b723b5c 100644
--- a/arch/x86/include/asm/mwait.h
+++ b/arch/x86/include/asm/mwait.h
@@ -86,9 +86,9 @@ static inline void __mwaitx(unsigned long eax, unsigned long ebx,
static inline void __sti_mwait(unsigned long eax, unsigned long ecx)
{
- mds_idle_clear_cpu_buffers();
-
trace_hardirqs_on();
+
+ mds_idle_clear_cpu_buffers();
/* "mwait %eax, %ecx;" */
asm volatile("sti; .byte 0x0f, 0x01, 0xc9;"
:: "a" (eax), "c" (ecx));