amd64: rewrite cpu_switch.S fragment to reload tss.rsp0 on context switch.
New code avoids jumps.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D19514
Description
Description
Details
Details
- Provenance
kib Authored on - Reviewer
- markj
- Differential Revision
- D19514: KPTI: add control from proccontrol(8)
- Parents
- rS345224: MFC r345089:
- Branches
- Unknown
- Tags