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acrn-hypervisor
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Author SHA1 Message Date
Yonghua Huang b2c6cf7753 hv: refine retpoline speculation barriers 
Per Section 4.4 Speculation Barriers, in
  "Retpoline: A Branch Target Inject Mitigation" white paper,
  "LFENCE instruction limits the speculative execution that
  a processor implementation can perform around the LFENCE,
  possibly impacting processor performance,but also creating
  a tool with which to mitigate speculative-execution
  side-channel attacks."

Tracked-On: #4424
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
 2020-02-26 09:24:54 +08:00
Mingqiang Chi 8338cd463b hv: move 3 files to lib & arch folder 
move stack_protector.c/retpoline-thunk.S into lib folder
move vmptable.c into arch/x86/config

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>

	modified:   Makefile
	renamed:    arch/x86/retpoline-thunk.S -> arch/x86/lib/retpoline-thunk.S
	renamed:    common/stack_protector.c -> lib/stack_protector.c
	renamed:    dm/vmptable.c -> arch/x86/configs/vmptable.c
 2019-06-14 14:22:51 +08:00