Re: [cip-dev] 4.4 backports -- x86 speculation

[Pavel Machek <pavel@denx.de>]

[-- Attachment #1: Type: text/plain, Size: 3207 bytes --]

Hi!

> > > 0001-ptrace-Check-PTRACE_O_SUSPEND_SECCOMP-permission-on-.patch
> > > 0002-xen-blkfront-don-t-use-gnttab_query_foreign_access-f.patch
> > > 0003-x86-modpost-Replace-last-remnants-of-RETPOLINE-with-.patch
> > > 
> > > I already had these from the last round.
> > > 
> > > 0004-arm-arm64-smccc-psci-add-arm_smccc_1_1_get_conduit.patch
> > > 
> > > I'll take this, but I'll need to recheck the context.
> > > 
> > > 0005-x86-speculation-Add-RETPOLINE_AMD-support-to-the-inl.patch
> > > 0006-x86-retpoline-Make-CONFIG_RETPOLINE-depend-on-compil.patch
> > > 0007-x86-retpoline-Remove-minimal-retpoline-support.patch
> > > 0008-Documentation-Add-section-about-CPU-vulnerabilities-.patch
> > > 0009-Documentation-Add-swapgs-description-to-the-Spectre-.patch
> > > 0010-Documentation-refer-to-config-RANDOMIZE_BASE-for-ker.patch
> > > 0011-x86-speculation-Rename-RETPOLINE_AMD-to-RETPOLINE_LF.patch
> > > 0012-x86-speculation-Add-eIBRS-Retpoline-options.patch
> > > 0013-Documentation-hw-vuln-Update-spectre-doc.patch
> > > 0014-x86-speculation-Include-unprivileged-eBPF-status-in-.patch
> > > 0015-x86-speculation-Use-generic-retpoline-by-default-on-.patch
> > > 0016-x86-speculation-Update-link-to-AMD-speculation-white.patch
> > > 0017-x86-speculation-Warn-about-Spectre-v2-LFENCE-mitigat.patch
> > > 0018-x86-speculation-Warn-about-eIBRS-LFENCE-Unprivileged.patch
> > > 
> > > Applied to -st-rc branch. Let me attempt to do some basic testing.
> > 
> > With all the patches applied, I get this:
> 
> My tree currently looks like this:
> 
> 882867c873bbf048cd3574a3fda18742726839b8 x86/retpoline: Remove minimal retpoline support
> 5a5cafcebb8d249808b0bd63ca75642e5e1ec821 x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support
> 64bdd7860d908641beb8c2aceeb34b4ddd773024 x86/speculation: Add RETPOLINE_AMD support to the inline asm CALL_NOSPEC variant
> 41f63e3d55265f90c76a00412252a34cd3f0142e arm/arm64: smccc/psci: add arm_smccc_1_1_get_conduit()
> b45151ba21854b8b38897696e163b04a7b09e204 x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE
> 728dc418dd6a8f3ce99f306ef52e6286aa6e13d9 xen/blkfront: don't use gnttab_query_foreign_access() for mapped status
> 10e10492a0474d9b57558f67cae41d2d7d7d11cf ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE
> 67f46bb7179f10425f9fbf81faa81c05c1d810f4 add needed testing
> 5cd6adc62818c613bef3fdcf48d5c1473e617e9f (origin/linux-4.4.y-st, linux-4.4.y-st) Merge changes from 4.9.314.
> 
> Testing 64bdd786, that one fails, testing 41f63e3d5: that one does not
> fail in the same
> way. https://gitlab.com/cip-project/cip-kernel/linux-cip/-/pipelines/563276264.
> 
> So it looks like 64bdd7860d908641beb8c2aceeb34b4ddd773024
> x86/speculation: Add RETPOLINE_AMD support to the inline asm causes
> the build problem.
> 
> I have reproduced problem locally, let me try to debug it.

It seems this patch depends on a65655d40c8235. I have backported it an
am proceeding with testing.

Best regards,
								Pavel

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

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 195 bytes --]