This is the start of the stable review cycle for the 4.19.248 release.
There are 16 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:
	https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.248-rc1.gz
or in the git tree and branch at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Linux 4.19.248-rc1

Josh Poimboeuf <jpoimboe@kernel.org>
    x86/speculation/mmio: Print SMT warning

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

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

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

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

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

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

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

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

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

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

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

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

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

Guenter Roeck <linux@roeck-us.net>
    cpu/speculation: Add prototype for cpu_show_srbds()

Gayatri Kammela <gayatri.kammela@intel.com>
    x86/cpu: Add Elkhart Lake to Intel family


-------------

Diffstat:

 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                |  11 +
 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.c                                 |  77 ++++++-
 arch/x86/kvm/x86.c                                 |   4 +
 drivers/base/cpu.c                                 |   8 +
 include/linux/cpu.h                                |   4 +
 15 files changed, 665 insertions(+), 42 deletions(-)

Hi!

> This is the start of the stable review cycle for the 4.19.248 release.
> There are 16 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.

CIP testing did not find any problems here:

https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/tree/linux-4.19.y

Tested-by: Pavel Machek (CIP) <pavel@denx.de>

Best regards,
                                                                Pavel


-- 
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

On 14/06/2022 19:40, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.19.248 release.
> There are 16 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:
> 	https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.248-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

All tests passing for Tegra ...

Test results for stable-v4.19:
     10 builds:	10 pass, 0 fail
     22 boots:	22 pass, 0 fail
     40 tests:	40 pass, 0 fail

Linux version:	4.19.248-rc1-g3a3ddc084a29
Boards tested:	tegra124-jetson-tk1, tegra186-p2771-0000,
                 tegra194-p2972-0000, tegra20-ventana,
                 tegra210-p2371-2180, tegra30-cardhu-a04

Tested-by: Jon Hunter <jonathanh@nvidia.com>

Jon

-- 
nvpublic

On 2022/6/15 2:40, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.19.248 release.
> There are 16 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:
> 	https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.248-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h
> 

Tested on arm64 and x86 for 4.19.248-rc1,

Kernel repo:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
Branch: linux-4.19.y
Version: 4.19.248-rc1
Commit: 3a3ddc084a29f6b9346b3f7de410b1c5353cbcd0
Compiler: gcc version 7.3.0 (GCC)

arm64:
--------------------------------------------------------------------
Testcase Result Summary:
total: 8956
passed: 8956
failed: 0
timeout: 0
--------------------------------------------------------------------

x86:
--------------------------------------------------------------------
Testcase Result Summary:
total: 8956
passed: 8956
failed: 0
timeout: 0
--------------------------------------------------------------------

Tested-by: Hulk Robot <hulkrobot@huawei.com>

On Tue, Jun 14, 2022 at 08:40:01PM +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.19.248 release.
> There are 16 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.
> 

Build results:
	total: 157 pass: 157 fail: 0
Qemu test results:
	total: 425 pass: 425 fail: 0

Tested-by: Guenter Roeck <linux@roeck-us.net>

Guenter

On Wed, 15 Jun 2022 at 00:12, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 4.19.248 release.
> There are 16 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:
>         https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.248-rc1.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Results from Linaro’s test farm.
No regressions on arm64, arm, x86_64, and i386.

Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>

## Build
* kernel: 4.19.248-rc1
* git: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
* git branch: linux-4.19.y
* git commit: 3a3ddc084a29f6b9346b3f7de410b1c5353cbcd0
* git describe: v4.19.247-17-g3a3ddc084a29
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-4.19.y/build/v4.19.247-17-g3a3ddc084a29

## Test Regressions (compared to v4.19.247)
No test regressions found.

## Metric Regressions (compared to v4.19.247)
No metric regressions found.

## Test Fixes (compared to v4.19.247)
No test fixes found.

## Metric Fixes (compared to v4.19.247)
No metric fixes found.

## Test result summary
total: 103967, pass: 92252, fail: 235, skip: 10777, xfail: 703

## Build Summary
* arc: 10 total, 10 passed, 0 failed
* arm: 298 total, 292 passed, 6 failed
* arm64: 56 total, 54 passed, 2 failed
* i386: 27 total, 23 passed, 4 failed
* mips: 27 total, 27 passed, 0 failed
* parisc: 12 total, 12 passed, 0 failed
* powerpc: 55 total, 54 passed, 1 failed
* s390: 12 total, 12 passed, 0 failed
* sh: 24 total, 24 passed, 0 failed
* sparc: 12 total, 12 passed, 0 failed
* x86_64: 53 total, 51 passed, 2 failed

## Test suites summary
* fwts
* igt-gpu-tools
* kunit
* kvm-unit-tests
* libhugetlbfs
* log-parser-boot
* log-parser-test
* ltp-cap_bounds
* ltp-cap_bounds-tests
* ltp-commands
* ltp-commands-tests
* ltp-containers
* ltp-containers-tests
* ltp-controllers-tests
* ltp-cpuhotplug-tests
* ltp-crypto
* ltp-crypto-tests
* ltp-cve-tests
* ltp-dio-tests
* ltp-fcntl-locktests
* ltp-fcntl-locktests-tests
* ltp-filecaps
* ltp-filecaps-tests
* ltp-fs
* ltp-fs-tests
* ltp-fs_bind
* ltp-fs_bind-tests
* ltp-fs_perms_simple
* ltp-fs_perms_simple-tests
* ltp-fsx
* ltp-fsx-tests
* ltp-hugetlb
* ltp-hugetlb-tests
* ltp-io
* ltp-io-tests
* ltp-ipc
* ltp-ipc-tests
* ltp-math-tests
* ltp-mm-tests
* ltp-nptl
* ltp-nptl-tests
* ltp-open-posix-tests
* ltp-pty
* ltp-pty-tests
* ltp-sched
* ltp-sched-tests
* ltp-securebits
* ltp-securebits-tests
* ltp-smoke
* ltp-syscalls-tests
* ltp-tracing-tests
* network-basic-tests
* packetdrill
* rcutorture
* ssuite
* v4l2-compliance
* vdso

--
Linaro LKFT
https://lkft.linaro.org

Hi Greg,

On Tue, Jun 14, 2022 at 08:40:01PM +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.19.248 release.
> There are 16 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.

Build test (gcc version 11.3.1 20220612):
mips: 63 configs -> no  failure
arm: 115 configs -> no failure
arm64: 2 configs -> no failure
x86_64: 4 configs -> no failure
alpha allmodconfig -> no failure
s390 allmodconfig -> no failure
xtensa allmodconfig -> no failure

Boot test:
x86_64: Booted on my test laptop. No regression.
x86_64: Booted on qemu. No regression. [1]

[1]. https://openqa.qa.codethink.co.uk/tests/1338


Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>

--
Regards
Sudip

On 6/14/22 12:40 PM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.19.248 release.
> There are 16 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:
> 	https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.248-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h
> 

Compiled and booted on my test system. No dmesg regressions.

Tested-by: Shuah Khan <skhan@linuxfoundation.org>

thanks,
-- Shuah