From: "Rebecca Cran" <rebecca@bsdio.com>
To: Sami Mujawar <sami.mujawar@arm.com>,
devel@edk2.groups.io, Ard Biesheuvel <ardb+tianocore@kernel.org>,
Thomas Abraham <thomas.abraham@arm.com>, nd <nd@arm.com>
Subject: Re: [PATCH edk2-platforms 3/3] Platform/ARM/JunoPkg: Reserve the ECAM area in ACPI with RES0 device
Date: Sat, 19 Mar 2022 13:56:43 -0600 [thread overview]
Message-ID: <439fcbf9-a78d-1807-7a53-3b139a948206@bsdio.com> (raw)
In-Reply-To: <8c268ce5-89af-ee0c-a15f-641c3a53ba4f@arm.com>
On 3/17/22 03:55, Sami Mujawar wrote:
> On 05/03/2022 04:19 AM, Rebecca Cran wrote:
>> Add a RES0 device to the SSDT to reserve the PCI ECAM area.
>>
>> This fixes the warning that Linux prints:
>>
>> acpi PNP0A08:00: [Firmware Bug]: ECAM area [mem 0x40000000-0x4fffffff]
>> not reserved in ACPI namespace
> [SAMI] I noticed that the "Firmware Bug" message is no longer seen, but
> instead the following message is now printed
> "system 00:00: [mem 0x40000000-0x4fffffff window] could not be reserved"
>
> It appears this is a harmless message and the relevant discussion can be
> seen at: https://lore.kernel.org/all/20210603141641.GA17284@lpieralisi/#t
>
> I think it may be better to update the commit message to reference this
> discussion and clarify that this is an expected behavior.
> [/SAMI]
Thanks, I've updated the commit message in v2.
--
Rebecca Cran
next prev parent reply other threads:[~2022-03-19 19:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-05 4:19 [PATCH edk2-platforms 0/3] JunoPkg: Fix AcpiSsdtRootPci.asl to use spaces and reserve ECAM area Rebecca Cran
2022-03-05 4:19 ` [PATCH edk2-platforms 1/3] Platform/ARM/JunoPkg: Convert AcpiSsdtRootPci.asl from tabs to spaces Rebecca Cran
2022-03-16 15:40 ` Sami Mujawar
2022-03-05 4:19 ` [PATCH edk2-platforms 2/3] Platform/ARM/JunoPkg: Use MdePkg PcdPciExpressBaseAddress for ECAM addr Rebecca Cran
2022-03-17 9:54 ` Sami Mujawar
2022-03-19 19:56 ` Rebecca Cran
2022-03-05 4:19 ` [PATCH edk2-platforms 3/3] Platform/ARM/JunoPkg: Reserve the ECAM area in ACPI with RES0 device Rebecca Cran
2022-03-17 9:55 ` Sami Mujawar
2022-03-19 19:56 ` Rebecca Cran [this message]
2022-03-15 2:44 ` [PATCH edk2-platforms 0/3] JunoPkg: Fix AcpiSsdtRootPci.asl to use spaces and reserve ECAM area Rebecca Cran
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