Re: [RFC FIX PATCH] x86/e820: Stop kernel boot when RAM resource reservation fails

[Bharata B Rao]

On 7/18/2022 8:37 PM, Borislav Petkov wrote:
> 
> I betcha you can generate a lot of "kernel bugs" with weird qemu
> options. If it is not a real use case, nobody cares.

I see that we will hit this problem by default when starting
a guest with 1T or more memory using QEMU.

> 
> And even if it were a real use case, panicking the machine is not the
> right fix.

I couldn't see a clean exit/recovery option in setup_arch()->e820__reserve_resources()
where this happens. Any suggestions?

Regards,
Bharata.