linux_dsm_epyc7002/arch
Andy Lutomirski 8bb5643686 x86/entry/traps: Clear DR6 early in do_debug() and improve the comment
Leaving any bits set in DR6 on return from a debug exception is
asking for trouble.  Prevent it by writing zero right away and
clarify the comment.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/3857676e1be8fb27db4b89bbb1e2052b7f435ff4.1457578375.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-10 09:48:13 +01:00
..
alpha
arc arc: SMP: CONFIG_ARC_IPI_DBG cleanup 2016-02-24 14:15:39 +05:30
arm ARM: SoC fixes 2016-03-06 14:14:54 -08:00
arm64 arm64 fix: 2016-03-04 17:43:40 -08:00
avr32
blackfin
c6x
cris
frv
h8300
hexagon
ia64
m32r
m68k
metag
microblaze
mips MIPS: traps: Fix SIGFPE information leak from do_ov' and do_trap_or_bp' 2016-03-04 22:52:32 +01:00
mn10300
nios2
openrisc
parisc parisc: Wire up copy_file_range syscall 2016-03-01 23:21:11 +01:00
powerpc powerpc fixes for 4.5 #4 2016-03-06 11:08:06 -08:00
s390 s390/fpu: signals vs. floating point control register 2016-02-22 09:29:35 +01:00
score
sh
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2016-03-01 08:57:34 -08:00
tile
um um: Export pm_power_off 2016-03-05 22:17:52 +01:00
unicore32
x86 x86/entry/traps: Clear DR6 early in do_debug() and improve the comment 2016-03-10 09:48:13 +01:00
xtensa
.gitignore
Kconfig