Re: embedded emulation: bhyve + vt-x on amd fx-8320

On Wed, Apr 26, 2023 at 10:15 PM Jan Jurák wrote:
> answer as usually late, but you can check procesor virtualisation flags with command:
> (..)
> On Freebsd:
>
> egrep -woi 'vmx|ept|vpid|npt|tpr_shadow|flexpriority|vnmi|lm|aes' /var/run/dmesg.boot | sort | uniq; egrep -woi 'vmx|lm|aes' /var/run/dmesg.boot | sort | uniq
>
> AES
> EPT
> LM
> VMX
> VPID
> AES
> LM
> VMX
>
> this is for intel, amd has it's own implementation for bot. Basically VMX is minimum, the extended page support - EPT is second most important not minimum but most modern hypervisors like bhyve also need this one.
> i believe for amd you are looking for AMD-v SVM but rather verify if correct acronyms.


Thanks Jan.. I also found dmidecode very useful to find lots of
information about the host hardware.. flags are not there.. just
curious why this virtual machine in virtual machine worked on windoze
o_O

Handle 0x0004, DMI type 4, 42 bytes
Processor Information
        Socket Designation: Socket 942
        Type: Central Processor
        Family: FX
        Manufacturer: AMD
        ID: 20 0F 60 00 FF FB 8B 17
        Signature: Family 21, Model 2, Stepping 0
        Flags:
                FPU (Floating-point unit on-chip)
                VME (Virtual mode extension)
                DE (Debugging extension)
                PSE (Page size extension)
                TSC (Time stamp counter)
                MSR (Model specific registers)
                PAE (Physical address extension)
                MCE (Machine check exception)
                CX8 (CMPXCHG8 instruction supported)
                APIC (On-chip APIC hardware supported)
                SEP (Fast system call)
                MTRR (Memory type range registers)
                PGE (Page global enable)
                MCA (Machine check architecture)
                CMOV (Conditional move instruction supported)
                PAT (Page attribute table)
                PSE-36 (36-bit page size extension)
                CLFSH (CLFLUSH instruction supported)
                MMX (MMX technology supported)
                FXSR (FXSAVE and FXSTOR instructions supported)
                SSE (Streaming SIMD extensions)
                SSE2 (Streaming SIMD extensions 2)
                HTT (Multi-threading)
        Version: AMD FX(tm)-8320 Eight-Core Processor
        Voltage: 1.4 V
        External Clock: 200 MHz
        Max Speed: 3600 MHz
        Current Speed: 3600 MHz
        Status: Populated, Enabled
        Upgrade: Socket AM3
        L1 Cache Handle: 0x0005
        L2 Cache Handle: 0x0006
        L3 Cache Handle: 0x0007
        Serial Number: To Be Filled By O.E.M.
        Asset Tag: To Be Filled By O.E.M.
        Part Number: To Be Filled By O.E.M.
        Core Count: 8
        Core Enabled: 8
        Thread Count: 8
        Characteristics:
                64-bit capable

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CeDeROM, SQ7MHZ, http://www.tomek.cedro.info