Re: [PATCH v2] x86/mce: fix wrong no-return-ip logic in do_machine_check()

Aili Yao
2021-02-22T09:32:30Z

On Mon, 22 Feb 2021 10:24:03 +0100
Borislav Petkov <bp@alien8.de> wrote:

> On Mon, Feb 22, 2021 at 11:50:07AM +0800, Aili Yao wrote:
> > From commit b2f9d678e28c ("x86/mce: Check for faults tagged in
> > EXTABLE_CLASS_FAULT exception table entries"), When there is a
> > memory MCE_AR_SEVERITY error with no return ip,
>
> What is a "no return ip" - MCG_STATUS_RIPV?

yes

> How do you trigger this error?

you can inject a memory UE to a VM, it should always be MCG_STATUS_RIPV 0.

Best Regard!
Aili Yao