[PATCH 5.4 00/15] 5.4.199-rc1 review

From: Greg Kroah-Hartman
Date: Tue Jun 14 2022 - 14:47:01 EST

This is the start of the stable review cycle for the 5.4.199 release.
There are 15 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, please
let me know.

Responses should be made by Thu, 16 Jun 2022 18:37:02 +0000.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
or in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
and the diffstat can be found below.


greg k-h

Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Linux 5.4.199-rc1

Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
x86/speculation/mmio: Print SMT warning

Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>
KVM: x86/speculation: Disable Fill buffer clear within guests

Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>
x86/speculation/mmio: Reuse SRBDS mitigation for SBDS

Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>
x86/speculation/srbds: Update SRBDS mitigation selection

Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>
x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data

Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>
x86/speculation/mmio: Enable CPU Fill buffer clearing on idle

Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>
x86/bugs: Group MDS, TAA & Processor MMIO Stale Data mitigations

Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>
x86/speculation/mmio: Add mitigation for Processor MMIO Stale Data

Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>
x86/speculation: Add a common function for MD_CLEAR mitigation update

Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>
x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug

Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>
Documentation: Add documentation for Processor MMIO Stale Data

Gayatri Kammela <gayatri.kammela@xxxxxxxxx>
x86/cpu: Add another Alder Lake CPU to the Intel family

Tony Luck <tony.luck@xxxxxxxxx>
x86/cpu: Add Lakefield, Alder Lake and Rocket Lake models to the to Intel CPU family

Zhang Rui <rui.zhang@xxxxxxxxx>
x86/cpu: Add Jasper Lake to Intel family

Guenter Roeck <linux@xxxxxxxxxxxx>
cpu/speculation: Add prototype for cpu_show_srbds()



Documentation/ABI/testing/sysfs-devices-system-cpu | 1 +
Documentation/admin-guide/hw-vuln/index.rst | 1 +
.../hw-vuln/processor_mmio_stale_data.rst | 246 +++++++++++++++++++++
Documentation/admin-guide/kernel-parameters.txt | 36 +++
Makefile | 4 +-
arch/x86/include/asm/cpufeatures.h | 1 +
arch/x86/include/asm/intel-family.h | 9 +
arch/x86/include/asm/msr-index.h | 25 +++
arch/x86/include/asm/nospec-branch.h | 2 +
arch/x86/kernel/cpu/bugs.c | 235 +++++++++++++++++---
arch/x86/kernel/cpu/common.c | 52 ++++-
arch/x86/kvm/vmx/vmx.c | 75 ++++++-
arch/x86/kvm/vmx/vmx.h | 3 +
arch/x86/kvm/x86.c | 4 +
drivers/base/cpu.c | 8 +
include/linux/cpu.h | 4 +
16 files changed, 664 insertions(+), 42 deletions(-)