amd64: do not switch back and restore UEFI IDT in wrmsr_early_safe_end()
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Authored by kib on Fri, May 29, 7:36 AM.

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rG606d3cb1be5f: amd64: do not switch back and restore UEFI IDT in wrmsr_early_safe_end()

Summary

The memory where the pre-OS IDT was located might be already consumed by
kernel.

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rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

kib created this revision.Fri, May 29, 7:36 AM

Herald added a subscriber: imp. · View Herald TranscriptFri, May 29, 7:36 AM

kib requested review of this revision.Fri, May 29, 7:36 AM

This revision was not accepted when it landed; it landed in state Needs Review.Mon, Jun 1, 4:37 PM

Closed by commit rG606d3cb1be5f: amd64: do not switch back and restore UEFI IDT in wrmsr_early_safe_end() (authored by kib). · Explain Why

This revision was automatically updated to reflect the committed changes.

kib added a commit: rG606d3cb1be5f: amd64: do not switch back and restore UEFI IDT in wrmsr_early_safe_end().

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sys/

amd64/

machdep.c

8 lines

Diff 179065

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amd64: do not switch back and restore UEFI IDT in wrmsr_early_safe_end()ClosedPublicActions