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linux-next/arch
Konrad Rzeszutek Wilk e2c3c94788 x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
This code is only for CPUs which are affected by MSBDS, but are *not*
affected by the other two MDS issues.

For such CPUs, enabling the mds_idle_clear mitigation is enough to
mitigate SMT.

However if user boots with 'mds=off' and still has SMT enabled, we should
not report that SMT is mitigated:

$cat /sys//devices/system/cpu/vulnerabilities/mds
Vulnerable; SMT mitigated

But rather:
Vulnerable; SMT vulnerable

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/20190412215118.294906495@localhost.localdomain
2019-04-17 20:59:23 +02:00
..
alpha alpha: fix page fault handling for r16-r18 targets 2019-02-10 20:42:23 -08:00
arc ARCv2: don't assume core 0x54 has dual issue 2019-02-21 14:53:36 -08:00
arm ARM: SoC fixes for v5.0 2019-03-02 16:43:15 -08:00
arm64 ARM: SoC fixes for v5.0 2019-03-02 16:43:15 -08:00
c6x arch: unexport asm/shmparam.h for all architectures 2019-02-01 15:46:22 -08:00
csky csky: Fixup dead loop in show_stack 2019-02-13 09:48:14 +08:00
h8300 arch: unexport asm/shmparam.h for all architectures 2019-02-01 15:46:22 -08:00
hexagon arch: unexport asm/shmparam.h for all architectures 2019-02-01 15:46:22 -08:00
ia64 ia64: remove redundant 'export AWK' 2019-01-16 23:31:18 +09:00
m68k for-linus-20190209 2019-02-09 10:26:09 -08:00
microblaze arch: unexport asm/shmparam.h for all architectures 2019-02-01 15:46:22 -08:00
mips Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-02 08:46:34 -08:00
nds32 nds32: remove unneeded code in arch/nds32/Makefile 2019-01-17 23:42:37 +09:00
nios2 arch: remove redundant UAPI generic-y defines 2019-01-06 10:22:15 +09:00
openrisc arch: unexport asm/shmparam.h for all architectures 2019-02-01 15:46:22 -08:00
parisc parisc: Fix ptrace syscall number modification 2019-02-21 20:10:46 +01:00
powerpc powerpc fixes for 5.0 #6 2019-02-23 11:13:50 -08:00
riscv Revert "RISC-V: Make BSS section as the last section in vmlinux.lds.S" 2019-02-11 15:24:45 -08:00
s390 KVM: s390: Fix crypto handling for nested KVM 2019-02-20 23:48:55 +01:00
sh sh: fix build error for invisible CONFIG_BUILTIN_DTB_SOURCE 2019-02-13 23:29:42 +09:00
sparc arch: remove redundant UAPI generic-y defines 2019-01-06 10:22:15 +09:00
um Merge branch 'akpm' (patches from Andrew) 2019-01-05 09:16:18 -08:00
unicore32 arch: unexport asm/shmparam.h for all architectures 2019-02-01 15:46:22 -08:00
x86 x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off 2019-04-17 20:59:23 +02:00
xtensa xtensa: SMP: limit number of possible CPUs by NR_CPUS 2019-01-27 10:04:30 -08:00
.gitignore
Kconfig jump_label: move 'asm goto' support test to Kconfig 2019-01-06 09:46:51 +09:00