Re: [Part1 PATCH v6 02/17] x86/mm: Add Secure Encrypted Virtualization (SEV) support

[Borislav Petkov]

On Mon, Oct 16, 2017 at 12:46:20PM -0500, Brijesh Singh wrote:
> sev_enabled lives in .data section and looking at the objdump it seems
> to initialized to zero. So, I think its safe to remove the initialization.

So I'd assume that static means it gets cleared to 0 automatically, even
if it is not in the .bss section. And Tom put it in the .data section to
protect it from the .bss clearing later.

To quote the C99 standard:

"If an object that has static storage duration is not initialized
explicitly, then:

...

â if it has arithmetic type, it is initialized to (positive or unsigned) zero;"

-- 
Regards/Gruss,
    Boris.

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