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leman

macrumors Core
Oct 14, 2008
19,520
19,671
That particular key is not present in the sysctl output on M1 Macs. I could dig out these things, don't know hw useful you will find them:

hw.optional.floatingpoint: 1
hw.optional.watchpoint: 4
hw.optional.breakpoint: 6
hw.optional.neon: 1
hw.optional.neon_hpfp: 1
hw.optional.neon_fp16: 1
hw.optional.armv8_1_atomics: 1
hw.optional.armv8_crc32: 1
hw.optional.armv8_2_fhm: 1
hw.optional.armv8_2_sha512: 1
hw.optional.armv8_2_sha3: 1
hw.optional.amx_version: 2
hw.optional.ucnormal_mem: 1
hw.optional.arm64: 1
 

sdz

macrumors 65816
Original poster
May 28, 2014
1,228
1,553
Europe/Germany
Hmmm... I am interested to know if the M1 has some kind of Virtualization extension like Intel (VMx)
 

leman

macrumors Core
Oct 14, 2008
19,520
19,671
Nothing I can see of kind in sysctl output, but it's not really my area of expertise. I though that A14 supported ARMv8.4-A, which is supposed to have virtualization features included?
 

sdz

macrumors 65816
Original poster
May 28, 2014
1,228
1,553
Europe/Germany
Nothing I can see of kind in sysctl output, but it's not really my area of expertise. I though that A14 supported ARMv8.4-A, which is supposed to have virtualization features included?
I have absolutely no clue about ARM stuff.
 

n0slav

macrumors newbie
Feb 27, 2023
1
0
Vancouver, British Columbia
I was looking for this as well and its looks like there's support for it on an m1 though the label `machdep.cpu.features` is absent
```
╰─ sysctl -a | grep 'hv' ─╯
kern.hv.supported: 1
kern.hv.max_address_spaces: 256
kern.hv.ipa_size_16k: 68719476736
kern.hv.ipa_size_4k: 549755813888
kern.hv_support: 1
kern.hv_disable: 0
kern.hv_vmm_present: 0
```
 

dmccloud

macrumors 68040
Sep 7, 2009
3,142
1,899
Anchorage, AK
I was looking for this as well and its looks like there's support for it on an m1 though the label `machdep.cpu.features` is absent
```
╰─ sysctl -a | grep 'hv' ─╯
kern.hv.supported: 1
kern.hv.max_address_spaces: 256
kern.hv.ipa_size_16k: 68719476736
kern.hv.ipa_size_4k: 549755813888
kern.hv_support: 1
kern.hv_disable: 0
kern.hv_vmm_present: 0
```

I got similar results, albeit on an M2 Max model...

Code:
> sysctl -a | grep 'hv'
kern.hv.supported: 1
kern.hv.max_address_spaces: 256
kern.hv.ipa_size_16k: 4398046511104
kern.hv.ipa_size_4k: 549755813888
kern.hv_support: 1
kern.hv_disable: 0
kern.hv_vmm_present: 0
 
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