The change looks good to me. Added some more info for Liming and others reference.
For DBG2, https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/acpi-debug-port-table Table 3. Debug port types and subtypes 0x0005 Nvidia 16550 For SPCR, https://docs.microsoft.com/en-us/windows-hardware/drivers/serports/serial-port-console-redirection-table Interface Type - See the Serial Port Subtypes in Table 3 of the DBG2 Specification<https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/acpi-debug-port-table> Both links are in LINKS TO ACPI-RELATED DOCUMENTS in https://uefi.org/acpi Reviewed-by: Sunny Wang <sunny.w...@arm.com<mailto:sunny.w...@arm.com>> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of gaoliming via groups.io Sent: Friday, May 21, 2021 1:20 PM To: devel@edk2.groups.io; ashishsin...@nvidia.com; Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com>; michael.d.kin...@intel.com; zhiguang....@intel.com Subject: 回复: [edk2-devel] [PATCH 1/1] MdePkg: Update DBG2 and SPCR header with NVIDIA 16550 Subtype Ashish: Is NVIDIA 16550 Subtype defined in the public spec? If yes, can you share the link? Thanks Liming 发件人: devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io<mailto:devel@edk2.groups.io>> 代表 Ashish Singhal 发送时间: 2021年5月21日 4:33 收件人: Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com<mailto:samer.el-haj-mahm...@arm.com>>; devel@edk2.groups.io<mailto:devel@edk2.groups.io>; michael.d.kin...@intel.com<mailto:michael.d.kin...@intel.com>; gaolim...@byosoft.com.cn<mailto:gaolim...@byosoft.com.cn>; zhiguang....@intel.com<mailto:zhiguang....@intel.com> 主题: Re: [edk2-devel] [PATCH 1/1] MdePkg: Update DBG2 and SPCR header with NVIDIA 16550 Subtype Hello Michael/Gao/Zhiguang, Any update on this? Thanks Ashish ________________________________ From: Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com<mailto:samer.el-haj-mahm...@arm.com>> Sent: Tuesday, May 18, 2021 3:14 PM To: devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io<mailto:devel@edk2.groups.io>>; Ashish Singhal <ashishsin...@nvidia.com<mailto:ashishsin...@nvidia.com>>; michael.d.kin...@intel.com<mailto:michael.d.kin...@intel.com> <michael.d.kin...@intel.com<mailto:michael.d.kin...@intel.com>>; gaolim...@byosoft.com.cn<mailto:gaolim...@byosoft.com.cn> <gaolim...@byosoft.com.cn<mailto:gaolim...@byosoft.com.cn>>; zhiguang....@intel.com<mailto:zhiguang....@intel.com> <zhiguang....@intel.com<mailto:zhiguang....@intel.com>> Cc: Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com<mailto:samer.el-haj-mahm...@arm.com>> Subject: RE: [edk2-devel] [PATCH 1/1] MdePkg: Update DBG2 and SPCR header with NVIDIA 16550 Subtype External email: Use caution opening links or attachments Reviewed-by: Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com<mailto:samer.el-haj-mahm...@arm.com>> > -----Original Message----- > From: devel@edk2.groups.io<mailto:devel@edk2.groups.io> > <devel@edk2.groups.io<mailto:devel@edk2.groups.io>> On Behalf Of Ashish > Singhal via groups.io > Sent: Tuesday, May 18, 2021 2:38 PM > To: devel@edk2.groups.io<mailto:devel@edk2.groups.io>; > michael.d.kin...@intel.com<mailto:michael.d.kin...@intel.com>; > gaolim...@byosoft.com.cn<mailto:gaolim...@byosoft.com.cn>; > zhiguang....@intel.com<mailto:zhiguang....@intel.com> > Cc: Ashish Singhal <ashishsin...@nvidia.com<mailto:ashishsin...@nvidia.com>> > Subject: [edk2-devel] [PATCH 1/1] MdePkg: Update DBG2 and SPCR header with > NVIDIA 16550 Subtype > > Add macros for NVIDIA 16550 UART specific debug port subtype in both > DBG2 as well as SPCR header file. > > Signed-off-by: Ashish Singhal > <ashishsin...@nvidia.com<mailto:ashishsin...@nvidia.com>> > > --- > MdePkg/Include/IndustryStandard/DebugPort2Table.h | 1 + > .../IndustryStandard/SerialPortConsoleRedirectionTable.h | 5 +++++ > 2 files changed, 6 insertions(+) > > diff --git a/MdePkg/Include/IndustryStandard/DebugPort2Table.h > b/MdePkg/Include/IndustryStandard/DebugPort2Table.h > index 3faa30b76a..6a6fd2590e 100644 > --- a/MdePkg/Include/IndustryStandard/DebugPort2Table.h > +++ b/MdePkg/Include/IndustryStandard/DebugPort2Table.h > @@ -43,6 +43,7 @@ typedef struct { > #define EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_FULL_16550 > 0x0000 > #define > EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_16550_SUBSET_COMPATIBLE_WITH_ > MS_DBGP_SPEC 0x0001 > #define EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_PL011_UART > 0x0003 > +#define EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_NVIDIA_16550_UART > 0x0005 > #define > EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_SBSA_GENERIC_UART_2X > 0x000d > #define EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_ARM_SBSA_GENERIC_UART > 0x000e > #define EFI_ACPI_DBG2_PORT_SUBTYPE_SERIAL_DCC > 0x000f > diff --git > a/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.h > b/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.h > index 2066c7895e..ba19567f52 100644 > --- a/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable.h > +++ b/MdePkg/Include/IndustryStandard/SerialPortConsoleRedirectionTable. > +++ h > @@ -80,6 +80,11 @@ typedef struct { > /// > #define > EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERFACE_TYPE_AR > M_PL011_UART 0x03 > > +/// > +/// NVIDIA 16550 UART > +/// > +#define > EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERFACE_TYPE_NV > IDIA_16550_UART 0x05 > + > /// > /// ARM SBSA Generic UART (2.x) supporting 32-bit only accesses [deprecated] > /// > -- > 2.17.1 > > > > > IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. 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