AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-01-19 01:56:21 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

x86/speculation/mds: Eliminate leaks by trace_hardirqs_on()

Browse Source 
Move mds_idle_clear_cpu_buffers() after trace_hardirqs_on() to ensure
all store buffer entries are flushed.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: bp@alien8.de
Cc: hpa@zytor.com
Cc: jgross@suse.com
Cc: ndesaulniers@google.com
Cc: gregkh@linuxfoundation.org
Link: https://lkml.kernel.org/r/1561260904-29669-2-git-send-email-zhenzhong.duan@oracle.com
This commit is contained in:
Zhenzhong Duan 2019-06-23 11:35:04 +08:00 committed by Thomas Gleixner
parent 4b972a01a7
commit ab3765a050
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/x86/include/asm/mwait.h
View File

@ -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));