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4.19.266-rc1 review

Greg Kroah-Hartman linux-patches linux-tegra lkml stable 1 version In review

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  1. v1 Latest34 patches 5 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/34Revert "x86/speculation: Add RSB VM Exit protections"Documentation/admin-guide/hw-vuln/spectre.rst arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/msr-index.h +4 more+7 -1030 replies
2/34Revert "x86/cpu: Add a steppings field to struct x86_cpu_id"arch/x86/include/asm/cpu_device_id.h arch/x86/kernel/cpu/match.c include/linux/mod_devicetable.h+1 -390 replies
3/34x86/cpufeature: Add facility to check for min microcode revisionsarch/x86/include/asm/cpu_device_id.h arch/x86/kernel/cpu/match.c+59 -00 replies
4/34x86/cpufeature: Fix various quality problems in the <asm/cpu_device_hd.h> headerarch/x86/include/asm/cpu_device_id.h+15 -160 replies
5/34x86/devicetable: Move x86 specific macro out of generic codearch/x86/include/asm/cpu_device_id.h arch/x86/kvm/svm.c arch/x86/kvm/vmx.c +3 more+17 -40 replies
6/34x86/cpu: Add consistent CPU match macrosarch/x86/include/asm/cpu_device_id.h arch/x86/include/asm/intel-family.h arch/x86/kernel/cpu/match.c+146 -130 replies
7/34x86/cpu: Add a steppings field to struct x86_cpu_idarch/x86/include/asm/cpu_device_id.h arch/x86/kernel/cpu/match.c arch/x86/kvm/vmx.c +3 more+42 -100 replies
8/34x86/cpufeatures: Move RETPOLINE flags to word 11arch/x86/include/asm/cpufeatures.h+10 -20 replies
9/34x86/bugs: Report AMD retbleed vulnerabilityarch/x86/include/asm/cpufeatures.h arch/x86/kernel/cpu/bugs.c arch/x86/kernel/cpu/common.c +2 more+39 -00 replies
10/34x86/bugs: Add AMD retbleed= boot parameterDocumentation/admin-guide/kernel-parameters.txt arch/x86/kernel/cpu/bugs.c+85 -10 replies
11/34x86/bugs: Keep a per-CPU IA32_SPEC_CTRL valuearch/x86/include/asm/nospec-branch.h arch/x86/kernel/cpu/bugs.c arch/x86/kernel/process.c+25 -60 replies
12/34x86/entry: Remove skip_r11rcxarch/x86/entry/calling.h arch/x86/entry/entry_64.S+2 -110 replies
13/34x86/entry: Add kernel IBRS implementationarch/x86/entry/calling.h arch/x86/entry/entry_64.S arch/x86/entry/entry_64_compat.S +1 more+97 -30 replies
14/34x86/bugs: Optimize SPEC_CTRL MSR writesarch/x86/include/asm/nospec-branch.h arch/x86/kernel/cpu/bugs.c arch/x86/kernel/process.c+14 -80 replies
15/34x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRSDocumentation/admin-guide/kernel-parameters.txt arch/x86/include/asm/nospec-branch.h arch/x86/kernel/cpu/bugs.c+54 -140 replies
16/34x86/bugs: Split spectre_v2_select_mitigation() and spectre_v2_user_select_mitigation()arch/x86/kernel/cpu/bugs.c+17 -80 replies
17/34x86/bugs: Report Intel retbleed vulnerabilityarch/x86/include/asm/msr-index.h arch/x86/kernel/cpu/bugs.c arch/x86/kernel/cpu/common.c+44 -170 replies
18/34intel_idle: Disable IBRS during long idlearch/x86/include/asm/nospec-branch.h arch/x86/kernel/cpu/bugs.c drivers/idle/intel_idle.c+44 -60 replies
19/34x86/speculation: Change FILL_RETURN_BUFFER to work with objtoolarch/x86/include/asm/nospec-branch.h+5 -50 replies
20/34x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=narch/x86/entry/entry_32.S arch/x86/entry/entry_64.S arch/x86/include/asm/nospec-branch.h+0 -60 replies
21/34x86/speculation: Fix firmware entry SPEC_CTRL handlingarch/x86/include/asm/nospec-branch.h+4 -60 replies
22/34x86/speculation: Fix SPEC_CTRL write on SMT state changearch/x86/kernel/cpu/bugs.c+2 -10 replies
23/34x86/speculation: Use cached host SPEC_CTRL value for guest entry/exitarch/x86/kernel/cpu/bugs.c+1 -110 replies
24/34x86/speculation: Remove x86_spec_ctrl_maskarch/x86/kernel/cpu/bugs.c+1 -300 replies
25/34KVM: VMX: Prevent guest RSB poisoning attacks with eIBRSarch/x86/include/asm/nospec-branch.h arch/x86/kernel/cpu/bugs.c arch/x86/kvm/vmx.c+46 -70 replies
26/34KVM: VMX: Fix IBRS handling after vmexitarch/x86/kvm/vmx.c+6 -20 replies
27/34x86/speculation: Fill RSB on vmexit for IBRSarch/x86/include/asm/cpufeatures.h arch/x86/include/asm/nospec-branch.h arch/x86/kernel/cpu/bugs.c +1 more+62 -90 replies
28/34x86/common: Stamp out the stepping madnessarch/x86/kernel/cpu/common.c+16 -220 replies
29/34x86/cpu/amd: Enumerate BTC_NOarch/x86/include/asm/cpufeatures.h arch/x86/kernel/cpu/amd.c arch/x86/kernel/cpu/common.c+20 -80 replies
30/34x86/bugs: Add Cannon lake to RETBleed affected CPU listarch/x86/kernel/cpu/common.c+1 -00 replies
31/34x86/speculation: Disable RRSBA behaviorarch/x86/include/asm/cpufeatures.h arch/x86/include/asm/msr-index.h arch/x86/kernel/cpu/bugs.c +1 more+37 -10 replies
32/34x86/speculation: Use DECLARE_PER_CPU for x86_spec_ctrl_currentarch/x86/include/asm/nospec-branch.h+2 -10 replies
33/34x86/bugs: Warn when "ibrs" mitigation is selected on Enhanced IBRS partsarch/x86/kernel/cpu/bugs.c+3 -00 replies
34/34x86/speculation: Add RSB VM Exit protectionsDocumentation/admin-guide/hw-vuln/spectre.rst arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/msr-index.h +5 more+103 -300 replies

Reviews trailers per patch

18 of 34 patches have a Reviewed-by or Acked-by.

PatchJosh PoimboeufAlexandre ChartreAndi KleenBorislav PetkovGreg Kroah-HartmanTony LuckPaolo BonziniThadeu Lima de Souza CascardoDave HansenShuah KhanPavel Machek (CIP)Linux Kernel Functional TestingJon HunterGuenter Roeck
SeriesT-b T-b T-b T-b T-b
1/34
2/34
3/34Originally-by A-b
4/34
5/34R-b
6/34R-b
7/34R-b R-b
8/34R-b
9/34R-b
10/34R-b
11/34R-b
12/34
13/34R-b
14/34R-b
15/34R-b
16/34R-b
17/34R-b
18/34R-b
19/34A-b R-b
20/34
21/34
22/34
23/34
24/34R-b
25/34
26/34
27/34
28/34A-b
29/34
30/34
31/34
32/34
33/34R-b
34/34

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes. Scroll the table sideways for all 14 reviewers.

Read the v1 thread

Cover letter [PATCH 4.19 00/34] 4.19.266-rc1 review

This is the start of the stable review cycle for the 4.19.266 release. There are 34 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 Wed, 23 Nov 2022 12:41:40 +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-4.19.266-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 <[email protected]>

    Linux 4.19.266-rc1

Daniel Sneddon <[email protected]>
x86/speculation: Add RSB VM Exit protections

Pawan Gupta <[email protected]>
x86/bugs: Warn when "ibrs" mitigation is selected on Enhanced IBRS parts

Nathan Chancellor <[email protected]>
x86/speculation: Use DECLARE_PER_CPU for x86_spec_ctrl_current

Pawan Gupta <[email protected]>
x86/speculation: Disable RRSBA behavior

Pawan Gupta <[email protected]>
x86/bugs: Add Cannon lake to RETBleed affected CPU list

Andrew Cooper <[email protected]>
x86/cpu/amd: Enumerate BTC_NO

Peter Zijlstra <[email protected]>
x86/common: Stamp out the stepping madness

Josh Poimboeuf <[email protected]>
x86/speculation: Fill RSB on vmexit for IBRS

Josh Poimboeuf <[email protected]>
KVM: VMX: Fix IBRS handling after vmexit

Josh Poimboeuf <[email protected]>
KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS

Josh Poimboeuf <[email protected]>
x86/speculation: Remove x86_spec_ctrl_mask

Josh Poimboeuf <[email protected]>
x86/speculation: Use cached host SPEC_CTRL value for guest entry/exit

Josh Poimboeuf <[email protected]>
x86/speculation: Fix SPEC_CTRL write on SMT state change

Josh Poimboeuf <[email protected]>
x86/speculation: Fix firmware entry SPEC_CTRL handling

Josh Poimboeuf <[email protected]>
x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n

Peter Zijlstra <[email protected]>
x86/speculation: Change FILL_RETURN_BUFFER to work with objtool

Peter Zijlstra <[email protected]>
intel_idle: Disable IBRS during long idle

Peter Zijlstra <[email protected]>
x86/bugs: Report Intel retbleed vulnerability

Peter Zijlstra <[email protected]>
x86/bugs: Split spectre_v2_select_mitigation() and spectre_v2_user_select_mitigation()

Pawan Gupta <[email protected]>
x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS

Peter Zijlstra <[email protected]>
x86/bugs: Optimize SPEC_CTRL MSR writes

Peter Zijlstra <[email protected]>
x86/entry: Add kernel IBRS implementation

Peter Zijlstra <[email protected]>
x86/entry: Remove skip_r11rcx

Peter Zijlstra <[email protected]>
x86/bugs: Keep a per-CPU IA32_SPEC_CTRL value

Alexandre Chartre <[email protected]>
x86/bugs: Add AMD retbleed= boot parameter

Alexandre Chartre <[email protected]>
x86/bugs: Report AMD retbleed vulnerability

Peter Zijlstra <[email protected]>
x86/cpufeatures: Move RETPOLINE flags to word 11

Mark Gross <[email protected]>
x86/cpu: Add a steppings field to struct x86_cpu_id

Thomas Gleixner <[email protected]>
x86/cpu: Add consistent CPU match macros

Thomas Gleixner <[email protected]>
x86/devicetable: Move x86 specific macro out of generic code

Ingo Molnar <[email protected]>
x86/cpufeature: Fix various quality problems in the <asm/cpu_device_hd.h> header

Kan Liang <[email protected]>
x86/cpufeature: Add facility to check for min microcode revisions

Suleiman Souhlal <[email protected]>
Revert "x86/cpu: Add a steppings field to struct x86_cpu_id"

Suleiman Souhlal <[email protected]>
Revert "x86/speculation: Add RSB VM Exit protections"

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

Diffstat:

 Documentation/admin-guide/kernel-parameters.txt |  13 +
 Makefile                                        |   4 +-
 arch/x86/entry/calling.h                        |  68 ++++-
 arch/x86/entry/entry_32.S                       |   2 -
 arch/x86/entry/entry_64.S                       |  34 ++-
 arch/x86/entry/entry_64_compat.S                |  11 +-
 arch/x86/include/asm/cpu_device_id.h            | 168 ++++++++++-
 arch/x86/include/asm/cpufeatures.h              |  18 +-
 arch/x86/include/asm/intel-family.h             |   6 +
 arch/x86/include/asm/msr-index.h                |  10 +
 arch/x86/include/asm/nospec-branch.h            |  53 ++--
 arch/x86/kernel/cpu/amd.c                       |  21 +-
 arch/x86/kernel/cpu/bugs.c                      | 368 +++++++++++++++++++-----
 arch/x86/kernel/cpu/common.c                    |  60 ++--
 arch/x86/kernel/cpu/match.c                     |  44 ++-
 arch/x86/kernel/cpu/scattered.c                 |   1 +
 arch/x86/kernel/process.c                       |   2 +-
 arch/x86/kvm/svm.c                              |   1 +
 arch/x86/kvm/vmx.c                              |  53 +++-
 arch/x86/kvm/x86.c                              |   4 +-
 drivers/base/cpu.c                              |   8 +
 drivers/cpufreq/acpi-cpufreq.c                  |   1 +
 drivers/cpufreq/amd_freq_sensitivity.c          |   1 +
 drivers/idle/intel_idle.c                       |  43 ++-
 include/linux/cpu.h                             |   2 +
 include/linux/kvm_host.h                        |   2 +-
 include/linux/mod_devicetable.h                 |   4 +-
 tools/arch/x86/include/asm/cpufeatures.h        |   1 +
 28 files changed, 815 insertions(+), 188 deletions(-)

Read the cover letter in its thread