From: Paul Menzel <pmenzel@molgen.mpg.de>
To: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
it+x86@molgen.mpg.de
Subject: acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
Date: Mon, 15 Feb 2021 17:53:51 +0100 [thread overview]
Message-ID: <f42e3f0f-2156-669a-e15e-51970b438ed4@molgen.mpg.de> (raw)
Dear Linux folks,
All the way up to QEMU emulator version 5.2.0 (Debian 1:5.2+dfsg-5) and
Linux 5.10.13, Linux logs the warning below:
acpi PNP0A03:00: fail to add MMCONFIG information, can't access
extended PCI configuration space under this bridge.
One way to reproduce it:
qemu-system-x86_64 -enable-kvm -m 2G -hda /dev/shm/debian.img
-kernel /boot/vmlinuz-5.10.0-3-amd64 -initrd
/boot/initrd.img-5.10.0-3-amd64 -append root="/dev/sda1
console=ttyS0,115200" -serial stdio
Please find more details and the full log in the Bugzilla issue #211765 [1].
Kind regards,
Paul
[1]: https://bugzilla.kernel.org/show_bug.cgi?id=211765
"[Bug 211765] acpi PNP0A03:00: fail to add MMCONFIG information,
can't access extended PCI configuration space under this bridge."
next reply other threads:[~2021-02-15 17:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-15 16:53 Paul Menzel [this message]
2022-07-29 22:22 ` acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge Bjorn Helgaas
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