Re: [edk2-devel] [PATCH v1 1/1] DynamicTablesPkg: Fix serial port namespace path in DBG2

["Sami Mujawar" <sami.mujawar@arm.com>]

Hi All,

Azure pipeline jobs are failing due to broken download link for the GCC Arm 10.3-2021.07 compiler, see https://dev.azure.com/tianocore/edk2-ci/_build/results?buildId=44398&view=logs&j=9b8d87a5-bd93-5358-8ffa-588e312c4376&t=aacec3cc-93ca-52e0-9354-41df8e192656

I am working to get the download links fixed. In the meantime, some patches may not get merged in edk2.
Apologies for the inconvenience.

Regards,

Sami Mujawar


On 14/03/2022, 11:49, "Sunny Wang" <Sunny.Wang@arm.com> wrote:

    I tested this patch as well and confirmed this patch fixed the FWTS failure below. Thanks, Sami.
        - dbg2: DBG2 Device 'COM0' not found in ACPI object name space.

    Tested-by: Sunny Wang <sunny.wang@arm.com>

    -----Original Message-----
    From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Jagadeesh Ujja via groups.io
    Sent: 14 March 2022 05:01
    To: devel@edk2.groups.io; Sami Mujawar <Sami.Mujawar@arm.com>
    Cc: Alexei Fedorov <Alexei.Fedorov@arm.com>; Matteo Carlini <Matteo.Carlini@arm.com>; Akanksha Jain <Akanksha.Jain2@arm.com>; Ben Adderson <Ben.Adderson@arm.com>; Pierre Gondois <Pierre.Gondois@arm.com>
    Subject: Re: [edk2-devel] [PATCH v1 1/1] DynamicTablesPkg: Fix serial port namespace path in DBG2

    Hi Sami,
    The patch is tested and looks good to me:

    Tested-by: Jagadeesh Ujja <Jagadeesh.Ujja@arm.com>

    On Fri, Mar 11, 2022 at 6:38 PM PierreGondois <pierre.gondois@arm.com> wrote:
    >
    > Hi Sami,
    > The patch looks good to me:
    >
    > Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
    >
    > On 3/10/22 18:39, Sami Mujawar wrote:
    > > According to the Debug Port Table 2 (DBG2) specification,
    > > February 17, 2021, the NamespaceString is a NULL terminated
    > > ASCII string that consists of a fully qualified reference
    > > to the object that represents the serial port device in the
    > > ACPI namespace.
    > >
    > > The DBG2 table generator did not populate the full device
    > > path for the serial port device, and this results in a FWTS
    > > test failure.
    > >
    > > Therefore, populate the full namespace device path for the
    > > serial port in DBG2 table.
    > >
    > > Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
    > > ---
    > > The changes can be seen at:
    > > https://github.com/samimujawar/edk2/tree/2105_dbg2_generator_namestring_issue_v1
    > >
    > >   DynamicTablesPkg/Library/Acpi/Arm/AcpiDbg2LibArm/Dbg2Generator.c | 10 +++++++---
    > >   1 file changed, 7 insertions(+), 3 deletions(-)
    > >
    > > diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiDbg2LibArm/Dbg2Generator.c b/DynamicTablesPkg/Library/Acpi/Arm/AcpiDbg2LibArm/Dbg2Generator.c
    > > index 3d513dbd1fbe8c47d270a9e639b2797098201d91..f6dfb3d94c10980a0e7712ce9427648b69974061 100644
    > > --- a/DynamicTablesPkg/Library/Acpi/Arm/AcpiDbg2LibArm/Dbg2Generator.c
    > > +++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiDbg2LibArm/Dbg2Generator.c
    > > @@ -1,7 +1,7 @@
    > >   /** @file
    > >     DBG2 Table Generator
    > >
    > > -  Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.<BR>
    > > +  Copyright (c) 2017 - 2022, Arm Limited. All rights reserved.<BR>
    > >
    > >     SPDX-License-Identifier: BSD-2-Clause-Patent
    > >
    > > @@ -55,13 +55,17 @@ Requirements:
    > >   */
    > >   #define NAME_STR_DBG_PORT0  "COM0"
    > >
    > > +/** A string representing the full path name of the debug port 0.
    > > +*/
    > > +#define NAMESPACE_STR_DBG_PORT0  "\\_SB_.COM0"
    > > +
    > >   /** An UID representing the debug port 0.
    > >   */
    > >   #define UID_DBG_PORT0  0
    > >
    > >   /** The length of the namespace string.
    > >   */
    > > -#define DBG2_NAMESPACESTRING_FIELD_SIZE  sizeof (NAME_STR_DBG_PORT0)
    > > +#define DBG2_NAMESPACESTRING_FIELD_SIZE  sizeof (NAMESPACE_STR_DBG_PORT0)
    > >
    > >   /** The PL011 UART address range length.
    > >   */
    > > @@ -166,7 +170,7 @@ DBG2_TABLE  AcpiDbg2 = {
    > >         0,                    // {Template}: Serial Port Subtype
    > >         0,                    // {Template}: Serial Port Base Address
    > >         PL011_UART_LENGTH,
    > > -      NAME_STR_DBG_PORT0
    > > +      NAMESPACE_STR_DBG_PORT0
    > >         )
    > >     }
    > >   };
    >
    >
    >
    >
    >


    



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