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Bug 663750 - Kernel: build ERROR: "l1tf_vmx_mitigation" [arch/x86/kvm/kvm.ko] undefined!
Summary: Kernel: build ERROR: "l1tf_vmx_mitigation" [arch/x86/kvm/kvm.ko] undefined!
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: AMD64 Linux
: Normal major
Assignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers
URL:
Whiteboard:
Keywords:
: 663768 (view as bug list)
Depends on:
Blocks:
 
Reported: 2018-08-16 05:13 UTC by PrSo
Modified: 2018-08-19 15:03 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---

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Description PrSo 2018-08-16 05:13:19 UTC 
There is a bug in mainline kernel if CONFIG_KVM_INTEL is disabled, which makes it impossible to compile. It has been already fixed by Guenter Roeck:
https://lkml.org/lkml/2018/8/14/1023
Comment 1 PrSo 2018-08-16 05:17:38 UTC 
Applying the patch manually makes kernel compile and run fine on mu AMD APU netbook.
Comment 2 Alexander Tsoy 2018-08-16 06:53:45 UTC 
Same problem with gentoo-sources-4.14.63
Comment 3 Alexander Tsoy 2018-08-16 07:53:52 UTC 
(In reply to PrSo from comment #0)
> https://lkml.org/lkml/2018/8/14/1023
I've tested this patch. It fixes 4.14.63 as well.
Comment 4 Thomas Deutschmann (RETIRED) gentoo-dev 2018-08-16 10:41:07 UTC 
Yeah, we know that bug. As workaround you can fix your configuration.
Comment 5 Thomas Deutschmann (RETIRED) gentoo-dev 2018-08-16 15:10:39 UTC 
Fixed gentoo-sources are now available (thanks Mike!)
Comment 6 Thomas Deutschmann (RETIRED) gentoo-dev 2018-08-19 15:03:09 UTC 
*** Bug 663768 has been marked as a duplicate of this bug. ***