VirtualBox

Changes between Initial Version and Version 1 of Ticket #19146, comment 2


Ignore:
Timestamp:
Dec 12, 2019 3:05:48 PM (5 years ago)
Author:
Valery Ushakov

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  • Ticket #19146, comment 2

    initial v1  
    22
    33CPUID values are ... = guest (host):
    4 
     4{{{
    55IBRS_IBPB - IA32_SPEC_CTRL.IBRS and IA32_PRED_CMD.IBPB  = 0 (1)
    66STIBP - Supports IA32_SPEC_CTRL.STIBP                   = 0 (1)
    77SSBD - Supports IA32_SPEC_CTRL.SSBD                     = 0 (1)
    8 
     8}}}
    99so the NetBSD guest is told the cpu doesn't support IA32_SPEC_CTRL (0x48),
    1010but still the guest tries to read it:
    11 
     11{{{
    121200:00:11.518912 IEM: rdmsr(0x48) -> #GP(0)
    131300:00:11.518920 Changing the VM state from 'RUNNING' to 'GURU_MEDITATION'
    14 
     14}}}
    1515But same values are set in NetBSD 8.1 STABLE amd64 on same host/VirtualBox combo and that one boots and runs just fine.

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