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Re: [PATCH v2 0/3] hw/arm/virt_acpi_build: Generate DBG2 table


From: Eric Auger
Subject: Re: [PATCH v2 0/3] hw/arm/virt_acpi_build: Generate DBG2 table
Date: Thu, 9 Sep 2021 17:41:58 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1

Hi Drew,

On 9/8/21 11:14 AM, Andrew Jones wrote:
> On Mon, Sep 06, 2021 at 02:31:36PM +0200, Eric Auger wrote:
>> This series generates the ACPI DBG2 table along with machvirt.
>> It applies on top of Igor's
>> [PATCH v2 00/35] acpi: refactor error prone build_header() and
>> packed structures usage in ACPI tables
>>
>> The DBG2 specification can be found at
>> https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/acpi-debug-port-table.
>>
>> DBG2 is mandated by ARM SBBR since its v1.0 release (the rationale
>> behind is Windows requires it on all systems).
>>
>> The DBG2 is used to describe a debug port, used by the kernel debugger.
> Hi Eric,
>
> Did you test this in some way with a Linux guest?

no, I don't know how to test it functionaly. As I diff'ed against
sbsa-ref generated table maybe guys using the sbsa-ref have some proper
testing use case of it? Adding Hongbo and Leif in CC.

Thanks

Eric
>
> Thanks,
> drew
>
>> This series and its dependency can be found at
>> https://github.com/eauger/qemu.git
>> branch: dbg2-v2-igor-v2-fix
>>
>> History:
>> v1 -> v2:
>> - rebase on top of Igor's series and use acpi_init_table/acpi_table_composed
>>   and build_append_int_noprefix()
>>
>> Eric Auger (3):
>>   tests/acpi: Add void table for virt/DBG2 bios-tables-test
>>   bios-tables-test: Generate reference table for virt/DBG2
>>   hw/arm/virt_acpi_build: Generate DBG2 table
>>
>>  hw/arm/virt-acpi-build.c  |  64 +++++++++++++++++++++++++++++++++++++-
>>  tests/data/acpi/virt/DBG2 | Bin 0 -> 87 bytes
>>  2 files changed, 63 insertions(+), 1 deletion(-)
>>  create mode 100644 tests/data/acpi/virt/DBG2
>>
>> -- 
>> 2.26.3
>>




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