Re: [edk2-devel] [PATCH] MdeModulePkg/Bus/Pci/XhciDxe: Fix the Bug of clean InputContext in XhcEvaluateContext64();

["Wu, Hao A" <hao.a.wu@intel.com>]

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Hello,

I created the a Bugzilla tracker for this issue at: https://bugzilla.tianocore.org/show_bug.cgi?id=4074.
I have attached the tracker mail and please help to check if the issue report looks good to you. If needed I can help to update the tracker before you got the Bugzilla access.

Also, please help to add the below information in the commit log message:
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=4074

Best Regards,
Hao Wu

From: 张家定 <jdzhang@kunluntech.com.cn>
Sent: Tuesday, September 20, 2022 6:01 PM
To: Wu, Hao A <hao.a.wu@intel.com>
Cc: devel@edk2.groups.io; Demeter, Miki <miki.demeter@intel.com>
Subject: Re:Re: [edk2-devel] [PATCH] MdeModulePkg/Bus/Pci/XhciDxe: Fix the Bug of clean InputContext in XhcEvaluateContext64();

Hi Miki:
    I want to file a Bugzilla to track this issue , but I haven't a Bugzilla account yet,  could you please help to process?

Thanks！

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发件人："Wu, Hao A" <hao.a.wu@intel.com>
发送日期：2022-09-20 14:27:21
收件人："devel@edk2.groups.io" <devel@edk2.groups.io>,"jdzhang@kunluntech.com.cn" <jdzhang@kunluntech.com.cn>
主题：Re: [edk2-devel] [PATCH] MdeModulePkg/Bus/Pci/XhciDxe: Fix the Bug of clean InputContext in XhcEvaluateContext64();

Thanks.

Could you help to:
1) File a Bugzilla to track this issue at https://bugzilla.tianocore.org/enter_bug.cgi?product=EDK2;
2) Send a new version of the patch for code changes (please update XhcEvaluateContext function accordingly as well).

Best Regards,
Hao Wu

From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Jiading Zhang
Sent: Tuesday, September 20, 2022 2:00 PM
To: Wu; Wu, Hao A <hao.a.wu@intel.com>; devel@edk2.groups.io
Subject: Re: [edk2-devel] [PATCH] MdeModulePkg/Bus/Pci/XhciDxe: Fix the Bug of clean InputContext in XhcEvaluateContext64();

I update XhcEvaluateContext64 according your suggesting and test in my platform, the KB and mass storage both can work!



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From: "bugzilla-daemon@bugzilla.tianocore.org" <bugzilla-daemon@bugzilla.tianocore.org>
To: Edk2+Bugs via Email Integration <bugs@edk2.groups.io>
Subject: [edk2-bugs] [Bug 4074] New: [MdeModulePkg][XhciDxe] Current endpoint input context is not fully initialized for evaluate context command
Date: Tue, 20 Sep 2022 21:28:20 +0000
Message-ID: <bug-4074-42@https.bugzilla.tianocore.org/>

https://bugzilla.tianocore.org/show_bug.cgi?id=4074

            Bug ID: 4074
           Summary: [MdeModulePkg][XhciDxe] Current endpoint input context
                    is not fully initialized for evaluate context command
           Product: EDK2
           Version: Current
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Lowest
         Component: Code
          Assignee: unassigned@tianocore.org
          Reporter: hao.a.wu@intel.com
                CC: edk2+bugs+int+994+563148131503455288@groups.io

From community report:
https://edk2.groups.io/g/devel/message/93737
https://edk2.groups.io/g/devel/message/93741
https://edk2.groups.io/g/devel/message/93976

The endpoint input context of Default Control Endpoint (EP[0]) for Evaluate
Context
command is not fully initialized according to the requirements in the xHCI
specification:

6.2.3 Endpoint Context:
* Note: Unless otherwise stated: As Input, all fields of the Endpoint Context
shall be initialized to the appropriate value by software before issuing a
command.
* Endpoint Type (EP Type). This field identifies whether an Endpoint Context is
Valid

According to the above community report
(https://edk2.groups.io/g/devel/message/93741), this will prevent USB devices
from being initialized on Phytium Platform (ARM).

Need to update XhcEvaluateContext/XhcEvaluateContext64 to properly initialize
the input context for Evaluate Context command.

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