I attached a patch witch change that is needed in EDK2 code as it is described. PCI_REG_PCIE_DEVICE_CONTROL2 struct is UINT16 but has 17 bits !! Issue is UINT16 LtrMechanism There is 2 instead of 1. - UINT16 LtrMechanism : 2; + UINT16 LtrMechanism : 1; Daniel Banaszek BIOS Engineer - IGK1-245 Intel Server UEFI Firmware Development Team ______________________________________________________________________________ From: Ni, Ray Sent: Monday, 2 December, 2019 15:45 To: Banaszek, Daniel Pawel Cc: Gao, Liming Subject: RE: ASAP Issue in PciExpress21.h Daniel, thank you for finding such a critical issue. Can you please submit an open source patch for this? Thanks, Ray From: Banaszek, Daniel Pawel > Sent: Monday, December 2, 2019 6:54 PM To: Ni, Ray > Subject: ASAP Issue in PciExpress21.h Hi There I an issue in MdePkg/Include/IndustryStandard/PciExpress21.h PCI_REG_PCIE_DEVICE_CONTROL2 struct is UINT16 but has 17 bits !! Issue is UINT16 LtrMechanism There is 2 instead of 1. - UINT16 LtrMechanism : 2; + UINT16 LtrMechanism : 1; Who can commit the change? Thanks Daniel Banaszek BIOS Engineer - IGK1-245 Intel Server UEFI Firmware Development Team Intel Technology Poland Sp. z o.o. -------------------------------------------------------------------- Intel Technology Poland sp. z o.o. ul. Slowackiego 173 | 80-298 Gdansk | Sad Rejonowy Gdansk Polnoc | VII Wydzial Gospodarczy Krajowego Rejestru Sadowego - KRS 101882 | NIP 957-07-52-316 | Kapital zakladowy 200.000 PLN. Ta wiadomosc wraz z zalacznikami jest przeznaczona dla okreslonego adresata i moze zawierac informacje poufne. W razie przypadkowego otrzymania tej wiadomosci, prosimy o powiadomienie nadawcy oraz trwale jej usuniecie; jakiekolwiek przegladanie lub rozpowszechnianie jest zabronione. This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). If you are not the intended recipient, please contact the sender and delete all copies; any review or distribution by others is strictly prohibited.