Re: [PATCH v9 42/43] virt: sevguest: Add support to derive key

Brijesh Singh
2022-02-08T14:14:21Z

On 2/8/22 1:56 AM, Dov Murik wrote:
...

>
> Just to be clear, I didn't mean necessarily "leak the key to the
> untrusted host" (even if a page is converted back from private to
> shared, it is encrypted, so host can't read its contents). But even
> *inside* the guest, when dealing with sensitive data like keys, we
> should minimize the amount of copies that float around (I assume this is
> the reason for most of the uses of memzero_explicit() in the kernel).
>

Yap, I agree with your point and will keep the memzero_explicit().

-Brijesh