This is how iOS works already. | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		saagarjha on Nov 15, 2024 \| parent \| context \| favorite \| on: New Apple security feature reboots iPhones after 3... This is how iOS works already.

dcow on Nov 16, 2024 [–]

No it’s not.

saagarjha on Nov 16, 2024 | [–]

Yes it is. The kernel’s code pages are specially marked and cannot be modified once the kernel’s signature is verified and it is mapped in.

dcow on Nov 18, 2024 | | [–]

That’s not hardware memory separation.

saagarjha on Nov 18, 2024 | | [–]

It’s handled by the memory controller, so…yes it is?

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact