Re: [PATCH v2] xen/x86: Zero out .bss for PV guests

[Boris Ostrovsky]

On 02/24/2016 11:05 AM, Brian Gerst wrote:
> Use the macros in <asm/asm.h> instead of defining your own.  Also,
> xorl %eax,%eax is good for 64-bit too, since the upper bits are
> cleared.

I suspected this would have to be defined somewhere but couldn't find 
it. Thanks!

-boris