Re: [PATCH RFC v2 2/4] x86/bus_lock: Handle warn and fatal in #DB for bus lock

[Peter Zijlstra]

On Wed, Oct 28, 2020 at 08:28:02PM +0000, Fenghua Yu wrote:
> diff --git a/arch/x86/include/uapi/asm/debugreg.h b/arch/x86/include/uapi/asm/debugreg.h
> index d95d080b30e3..61078319fc6c 100644
> --- a/arch/x86/include/uapi/asm/debugreg.h
> +++ b/arch/x86/include/uapi/asm/debugreg.h
> @@ -16,7 +16,7 @@
>     are either reserved or not of interest to us. */
>  
>  /* Define reserved bits in DR6 which are always set to 1 */
> -#define DR6_RESERVED	(0xFFFF0FF0)
> +#define DR6_RESERVED	(0xFFFF07F0)

NAK