I asked this before on Qubes 
forum(https://qubes-os.discourse.group/t/xen-exploit-migitations/2469), but 
there were no replies so I'm hoping I'll get replies here:

I saw in the Xen 4.14 release notes that Xen now supports hardware based 
Control-flow Enforcement Technology (CET) which has been introduced into 
Intels Tiger Lake and AMDs Zen3 CPUs. 
- Does Qubes support this as well? 
- And does Xen also have a softwarebased CFI? 
- Does Xen also support ASLR now? Some years ago I read a post from Qubes 
saying that Xen didn’t have many exploit migitations and didn’t even 
support ASLR.

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