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From: JeeHeng Sia <jeeheng.sia@starfivetech.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: "qemu-arm@nongnu.org" <qemu-arm@nongnu.org>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
	"qemu-riscv@nongnu.org" <qemu-riscv@nongnu.org>,
	"mst@redhat.com" <mst@redhat.com>,
	"imammedo@redhat.com" <imammedo@redhat.com>,
	"anisinha@redhat.com" <anisinha@redhat.com>,
	"shannon.zhaosl@gmail.com" <shannon.zhaosl@gmail.com>,
	"sunilvl@ventanamicro.com" <sunilvl@ventanamicro.com>,
	"palmer@dabbelt.com" <palmer@dabbelt.com>,
	"alistair.francis@wdc.com" <alistair.francis@wdc.com>,
	"bin.meng@windriver.com" <bin.meng@windriver.com>,
	"liwei1518@gmail.com" <liwei1518@gmail.com>,
	"dbarboza@ventanamicro.com" <dbarboza@ventanamicro.com>,
	"zhiwei_liu@linux.alibaba.com" <zhiwei_liu@linux.alibaba.com>
Subject: RE: [PATCH v1 0/2] Upgrade ACPI SPCR table to support SPCR table version 4 format
Date: Mon, 6 May 2024 05:46:24 +0000	[thread overview]
Message-ID: <NT0PR01MB12781A762B996998AF0B7FDD9C1CA@NT0PR01MB1278.CHNPR01.prod.partner.outlook.cn> (raw)
In-Reply-To: <CAFEAcA_FO7BvUDbnJdUTkuatFse7bWR2mjL2OQ_vsB_dLdKbow@mail.gmail.com>



> -----Original Message-----
> From: Peter Maydell <peter.maydell@linaro.org>
> Sent: Thursday, May 2, 2024 5:19 PM
> To: JeeHeng Sia <jeeheng.sia@starfivetech.com>
> Cc: qemu-arm@nongnu.org; qemu-devel@nongnu.org; qemu-riscv@nongnu.org; mst@redhat.com; imammedo@redhat.com;
> anisinha@redhat.com; shannon.zhaosl@gmail.com; sunilvl@ventanamicro.com; palmer@dabbelt.com; alistair.francis@wdc.com;
> bin.meng@windriver.com; liwei1518@gmail.com; dbarboza@ventanamicro.com; zhiwei_liu@linux.alibaba.com
> Subject: Re: [PATCH v1 0/2] Upgrade ACPI SPCR table to support SPCR table version 4 format
> 
> On Thu, 2 May 2024 at 06:12, Sia Jee Heng <jeeheng.sia@starfivetech.com> wrote:
> >
> > Update the SPCR table to accommodate the SPCR Table version 4 [1].
> > The SPCR table has been modified to adhere to the version 4 format [2].
> >
> > Meanwhile, the virt SPCR golden reference files have been updated to
> > accommodate the SPCR Table version 4.
> >
> > [1]: https://learn.microsoft.com/en-us/windows-hardware/drivers/serports/serial-port-console-redirection-table
> > [2]: https://github.com/acpica/acpica/pull/931
> >
> > Sia Jee Heng (2):
> >   tests/qtest/bios-tables-test: Update virt SPCR golden references
> >   hw/acpi: Upgrade ACPI SPCR table to support SPCR table version 4
> >     format
> 
> This isn't the right way to make a change that requires
> updates to the bios-tables-test reference files, because
> "make check" will fail after patch 1 but before patch 2.
> 
> You need a three-patch approach. How to do that is documented
> in the comment at the top of bios-tables-test.c. The resulting
> three patches should look like:
>  * patch 1 updates bios-tables-test-allowed-diff.h to
>    mark the affected test or tests as "OK to fail"
>  * patch 2 makes the changes to QEMU that alter the
>    required table output
>  * patch 3 updates the reference files and removes the
>    tests from the allowed-diff file
> 
> See for instance commits 6c1c2e912fcf9, 1ec896fe7ca938,
> ea2fde5bccc514 as an example.
Thank you for the guidance. I will improve the patch by referring to the example provided.
> 
> Side note: if riscv virt has APCI tables now, maybe we
> should add testing of them to the bios-tables-test ?
Sure. I will make modifications based on the RISC-V test.
> 
> thanks
> -- PMM

      reply	other threads:[~2024-05-06  5:48 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-02  5:12 [PATCH v1 0/2] Upgrade ACPI SPCR table to support SPCR table version 4 format Sia Jee Heng
2024-05-02  5:12 ` [PATCH v1 1/2] tests/qtest/bios-tables-test: Update virt SPCR golden references Sia Jee Heng
2024-05-02  5:12 ` [PATCH v1 2/2] hw/acpi: Upgrade ACPI SPCR table to support SPCR table version 4 format Sia Jee Heng
2024-05-02  9:18 ` [PATCH v1 0/2] " Peter Maydell
2024-05-06  5:46   ` JeeHeng Sia [this message]

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