diff options
| author | Zhenzhong Duan <[email protected]> | 2019-06-23 11:35:04 +0800 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2019-06-26 15:01:50 +0200 |
| commit | ab3765a050f7bea942f114d07278e1775e38199b (patch) | |
| tree | 3bfe2cbae0cfa73b09643f245fdd4180bcd667dc | |
| parent | 4b972a01a7da614b4796475f933094751a295a2f (diff) | |
x86/speculation/mds: Eliminate leaks by trace_hardirqs_on()
Move mds_idle_clear_cpu_buffers() after trace_hardirqs_on() to ensure
all store buffer entries are flushed.
Signed-off-by: Zhenzhong Duan <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
| -rw-r--r-- | arch/x86/include/asm/mwait.h | 4 |
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)); |