Re: [PATCH v2 2/2] x86/traps: Initialize DR7 by writing its architectural reset value

[Xin Li]

On 6/17/2025 4:08 PM, Xin Li wrote:
> I hope the bit will be kept reserved to 1 *forever*, because inverted
> polarity seems causing confusing and complicated code only.

BTW, FRED flipped BLD and RTM polarities in its event data:

The event data is not exactly the same as that which will be in DR6
following delivery of the #DB. The polarity of bit 11 (BLD) and bit 16
(RTM) is inverted in DR6.


I.e., BLD and RTM are active high in FRED event data.