SVNews r330868

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2018-03-13 17:10:52 - r330868 by kevans (kevans)

Complete list of files affected by revision r330868:

(Note: At the moment, these links point to ViewVC on They are probably slow. Do not overuse.)

  History   Contents   Diff   MODIFY   /head/stand/efi/loader/bootinfo.c  
  History   Contents   Diff   MODIFY   /head/sys/amd64/amd64/efirt_machdep.c  
  History   Contents   Diff   MODIFY   /head/sys/arm64/arm64/efirt_machdep.c  

Commit message:

EFIRT: SetVirtualAddressMap with 1:1 mapping after exiting boot services

This fixes a problem encountered on the Lenovo Thinkpad X220/Yoga 11e where
runtime services would try to inexplicably jump to other parts of memory
where it shouldn't be when attempting to enumerate EFI vars, causing a

The virtual mapping is enabled by default and can be disabled by setting
efi_disable_vmap in loader.conf(5).

Reviewed by: kib (earlier version)
MFC after: 3 weeks
Differential Revision:


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