Re: [PATCH 3/3] /dev/mem: Do not map unaccepted memory

[Kirill A. Shutemov]

On Thu, Sep 07, 2023 at 07:15:21AM -0700, Dave Hansen wrote:
> On 9/6/23 00:39, Adrian Hunter wrote:
> > Support for unaccepted memory was added recently, refer commit
> > dcdfdd40fa82 ("mm: Add support for unaccepted memory"), whereby
> > a virtual machine may need to accept memory before it can be used.
> > 
> > Do not map unaccepted memory because it can cause the guest to fail.
> 
> Doesn't /dev/mem already provide a billion ways for someone to shoot
> themselves in the foot?  TDX seems to have added the 1,000,000,001st.
> Is this really worth patching?

Is it better to let TD die silently? I don't think so.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov