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6d44acae19
linux_dsm_epyc7002/arch/powerpc
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Michael Ellerman 6d44acae19 powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2 
When I added the spectre_v2 information in sysfs, I included the
availability of the ori31 speculation barrier.

Although the ori31 barrier can be used to mitigate v2, it's primarily
intended as a spectre v1 mitigation. Spectre v2 is mitigated by
hardware changes.

So rework the sysfs files to show the ori31 information in the
spectre_v1 file, rather than v2.

Currently we display eg:

  $ grep . spectre_v*
  spectre_v1:Mitigation: __user pointer sanitization
  spectre_v2:Mitigation: Indirect branch cache disabled, ori31 speculation barrier enabled

After:

  $ grep . spectre_v*
  spectre_v1:Mitigation: __user pointer sanitization, ori31 speculation barrier enabled
  spectre_v2:Mitigation: Indirect branch cache disabled

Fixes: d6fbe1c55c ("powerpc/64s: Wire up cpu_show_spectre_v2()")
Cc: stable@vger.kernel.org # v4.17+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-07-24 22:03:15 +10:00
..
boot powerpc/dts: Use a correct at24 compatible fallback in ac14xx 2018-07-10 10:58:40 +10:00
configs powerpc/embedded6xx: Remove C2K board support 2018-06-04 00:39:22 +10:00
crypto crypto: hash - annotate algorithms taking optional key 2018-01-12 23:03:35 +11:00
include powerpc: NMI IPI make NMI IPIs fully sychronous 2018-07-24 22:03:14 +10:00
kernel powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2 2018-07-24 22:03:15 +10:00
kvm powerpc/powernv/ioda: Allocate indirect TCE levels on demand 2018-07-16 22:53:11 +10:00
lib treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
math-emu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mm powerpc/pkeys: make protection key 0 less special 2018-07-24 21:43:24 +10:00
net treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
oprofile treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
perf powerpc/64s: Remove POWER9 DD1 support 2018-07-16 11:37:21 +10:00
platforms powerpc/powernv/npu: Add a debugfs setting to change ATSD threshold 2018-07-19 21:58:10 +10:00
purgatory License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysdev powerpc/mpic: Pass first free vector number to mpic_setup_error_int() 2018-07-19 21:58:09 +10:00
tools powerpc/kbuild: move -mprofile-kernel check to Kconfig 2018-06-11 09:16:29 +09:00
xmon Merge branch 'topic/ppc-kvm' into next 2018-07-19 14:37:57 +10:00
Kconfig powerpc: Enable kernel XZ compression option on BOOK3S_32 2018-07-04 22:41:10 +10:00
Kconfig.debug powerpc: Add new kconfig CONFIG_PPC_IRQ_SOFT_MASK_DEBUG 2018-01-19 22:37:03 +11:00
Makefile powerpc/e500mc: Set assembler machine type to e500mc 2018-06-19 21:28:20 +10:00
Makefile.postlink License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00