Tom Lendacky 612bc3b3d4 x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR ...

On AMD, the presence of the MSR_SPEC_CTRL feature does not imply that the
SSBD mitigation support should use the SPEC_CTRL MSR. Other features could
have caused the MSR_SPEC_CTRL feature to be set, while a different SSBD
mitigation option is in place.

Update the SSBD support to check for the actual SSBD features that will
use the SPEC_CTRL MSR.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Borislav Petkov <bpetkov@suse.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 6ac2f49edb ("x86/bugs: Add AMD's SPEC_CTRL MSR usage")
Link: http://lkml.kernel.org/r/20180702213602.29202.33151.stgit@tlendack-t1.amdoffice.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2018-07-03 09:45:48 +02:00

..

boot

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-06-10 09:44:53 -07:00

configs

x86/unwind: Rename unwinder config options to 'CONFIG_UNWINDER_*'

2017-10-14 10:12:12 +02:00

crypto

crypto: x86/salsa20 - remove x86 salsa20 implementations

2018-05-31 00:13:57 +08:00

entry

docs: Fix some broken references

2018-06-15 18:10:01 -03:00

events

treewide: kzalloc() -> kcalloc()

2018-06-12 16:19:22 -07:00

hyperv

x86/hyper-v: move struct hv_flush_pcpu{,ex} definitions to common header

2018-05-26 14:14:33 +02:00

ia32

syscalls/x86: auto-create compat_sys_*() prototypes

2018-04-02 20:16:18 +02:00

include

x86/spectre_v1: Disable compiler optimizations over array_index_mask_nospec()

2018-06-21 16:00:21 +02:00

kernel

x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR

2018-07-03 09:45:48 +02:00

kvm

KVM: x86: VMX: redo fix for link error without CONFIG_HYPERV

2018-06-14 18:53:14 +02:00

lib

Merge tag 'libnvdimm-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2018-06-08 17:21:52 -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

treewide: use PHYS_ADDR_MAX to avoid type casting ULLONG_MAX

2018-06-15 07:55:25 +09:00

net

treewide: kmalloc() -> kmalloc_array()

2018-06-12 16:19:22 -07:00

oprofile

x86/oprofile: Fix bogus GCC-8 warning in nmi_setup()

2018-02-21 09:54:17 +01:00

pci

treewide: kzalloc() -> kcalloc()

2018-06-12 16:19:22 -07:00

platform

treewide: kzalloc() -> kcalloc()

2018-06-12 16:19:22 -07:00

power

x86/mm: Stop pretending pgtable_l5_enabled is a variable

2018-05-19 11:56:57 +02:00

purgatory

kernel/kexec_file.c: move purgatories sha256 to common code

2018-04-13 17:10:28 -07:00

ras

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

realmode

x86-64/realmode: Add instruction suffix

2018-02-20 09:33:41 +01:00

tools

x86: Treat R_X86_64_PLT32 as R_X86_64_PC32

2018-02-22 09:01:10 -08:00

um

Merge tag 'kconfig-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2018-06-06 11:31:45 -07:00

video

…

xen

Merge tag 'for-linus-4.18-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

2018-06-08 09:24:54 -07:00

.gitignore

x86/build: Add arch/x86/tools/insn_decoder_test to .gitignore

2018-02-13 14:10:29 +01:00

Kbuild

…

Kconfig

Kbuild: rename HAVE_CC_STACKPROTECTOR config variable

2018-06-15 07:15:28 +09:00

Kconfig.cpu

Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-03-25 07:36:02 -10:00

Kconfig.debug

x86, nfit_test: Add unit test for memcpy_mcsafe()

2018-05-22 23:18:31 -07:00

Makefile

kbuild: add machine size to CHECKFLAGS

2018-06-01 11:36:58 +09:00

Makefile_32.cpu

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

Makefile.um

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00