Andrew Cooper bfe8f3e884 x86/Intel: Mitigations for GPZ SP4 - Speculative Store Bypass ...

To combat GPZ SP4 "Speculative Store Bypass", Intel have extended their
speculative sidechannel mitigations specification as follows:

 * A feature bit to indicate that Speculative Store Bypass Disable is
   supported.
 * A new bit in MSR_SPEC_CTRL which, when set, disables memory disambiguation
   in the pipeline.
 * A new bit in MSR_ARCH_CAPABILITIES, which will be set in future hardware,
   indicating that the hardware is not susceptible to Speculative Store Bypass
   sidechannels.

For contemporary processors, this interface will be implemented via a
microcode update.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
master commit: 9df52a25e0
master date: 2018-05-21 14:20:06 +0100

2018-05-29 11:08:34 +02:00

..

blktap2

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console

tools/console: correct make dependencies for _paths.h

2016-03-01 13:33:45 +00:00

debugger

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examples

docs: get rid of the SEDF scheduler

2015-07-08 14:37:43 +01:00

firmware

hvmloader: add high memory e820 region if needed

2016-03-18 08:06:46 +01:00

flask

x86/altp2m: XSM hooks for altp2m HVM ops

2015-07-24 13:39:33 +02:00

hotplug

init/FreeBSD: fix incorrect usage of $rc_pids in xendriverdomain

2017-01-20 17:38:29 +00:00

include

bsd-sys-queue-h-seddery: Massage `offsetof'

2015-07-15 11:22:52 +01:00

libfsimage

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libvchan

libvchan: Read prod/cons only once.

2016-03-09 16:56:53 +01:00

libxc

tools/libxc: Fix restoration of PV MSRs after migrate

2018-02-27 16:00:14 +00:00

libxl

x86/Intel: Mitigations for GPZ SP4 - Speculative Store Bypass

2018-05-29 11:08:34 +02:00

memshr

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misc

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ocaml

oxenstored: trim history in the frequent_ops function

2017-04-05 15:19:02 +01:00

pygrub

pygrub: Properly quote results, when returning them to the caller:

2016-11-22 14:23:54 +01:00

python

tools: handle xl migrate --debug in legacy stream

2016-05-09 17:36:48 +01:00

tests

x86/emul: Fix emulator test harness build following a backport of 7c508612

2018-05-09 18:08:36 +01:00

xcutils

tools: fix "make distclean"

2015-01-27 16:34:45 +00:00

xenbackendd

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xenmon

docs: Move misc README's into docs/misc/

2015-08-27 19:14:17 +01:00

xenpaging

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xenpmd

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xenstat

libxenstat: honour XEN_RUN_DIR

2016-08-15 11:30:24 +01:00

xenstore

tools/xenstore: dont unlink connection object twice

2017-09-12 15:14:15 +02:00

xentrace

docs: Move xentrace.8 to docs/man/xentrace.pod.8

2015-08-27 19:14:35 +01:00

config.h.in

xen/arm: Propagate clock-frequency to DOMU if present in the DT timer node

2015-06-25 10:59:08 +01:00

configure

configure: Fix when no libsystemd compat lib are available

2016-08-15 11:25:19 +01:00

configure.ac

tools: Honor Config.mk debug value, rather than setting our own

2015-09-02 13:07:57 +01:00

cross-install

cross-install: Only apply in tools directory, and automatically wrap $INSTALL.

2008-08-30 08:36:02 +01:00

Makefile

tools: Don't try to update the firmware directory on ARM

2015-08-13 10:59:12 +01:00

Rules.mk

tools: Link in-tree libvchan and libblktapctl users against lib....so

2015-07-08 11:14:13 +01:00