PCR 13141 - Kernel does not support multi-core in a certified system
Summary: Kernel does not support multi-core in a certified system
Status: NEW
Alias: None
Product: Kernel
Classification: Deos
Component: Kernel (show other PCRs)
Version: mainline
Hardware: All Deos
: By Cert
: Limitation
Target Milestone: 9.2.3 (indie)
Assignee: .Kernel
URL:
Whiteboard:
Depends on:
Blocks: 13430
  Show dependency tree / graph
 
Reported: 2021-02-23 15:29 MST by rroffelsen
Modified: 2021-07-07 05:11 MST (History)
1 user (show)

See Also:
Impact Assessment: Heavy
Organization: DDC-I, Inc.
rroffelsen: Requirements?
rroffelsen: Code?
rroffelsen: TestCases?
rroffelsen: TestProcedures?
rroffelsen: Other?

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Description rroffelsen 2021-02-23 15:29:27 MST 
Multi-core support was added to the kernel but verification of this feature is incomplete. Therefor, the kernel may not be configured to execute multiple cores.

Workaround:

The kernel must be configured to execute only one core. To ensure this the following must be true:
  - When boot is calling the kernel entry point:
    -- bootInterfaceObject.maxLogicalCoreIndex == 0
    -- logicalCoreIndex == 0
  - platformAttributes numberOfCores == 1 in the registry.
Comment 1 deosbugs.ccb 2021-03-26 09:35:33 MST 
CCB visited this PCR on 2021-03-26-57787
Comment 2 deosbugs.ccb 2021-04-05 09:52:48 MST 
CCB visited this PCR on 2021-04-05-59141
Comment 3 deosbugs.ccb 2021-04-14 05:26:59 MST 
CCB visited this PCR on 2021-04-14-44714
Comment 4 deosbugs.ccb 2021-04-29 08:48:54 MST 
CCB visited this PCR on 2021-04-29-55421
Comment 5 alarson 2021-07-01 15:51:53 MST 
Improper Commit of SVN Revision 74553 removed.
Comment 6 rroffelsen 2021-07-07 05:11:13 MST 
Improper Commit of SVN Revision 74593 removed.