From: Bjorn Helgaas <helgaas@kernel.org>
To: Guilherme Piccoli <gpiccoli@canonical.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Thomas Gleixner <tglx@linutronix.de>,
lukas@wunner.de, linux-pci@vger.kernel.org,
Pingfan Liu <kernelfans@gmail.com>,
andi@firstfloor.org, "H. Peter Anvin" <hpa@zytor.com>,
Baoquan He <bhe@redhat.com>,
x86@kernel.org, Sinan Kaya <okaya@kernel.org>,
Ingo Molnar <mingo@redhat.com>,
Jay Vosburgh <jay.vosburgh@canonical.com>,
Dave Young <dyoung@redhat.com>,
Gavin Guo <gavin.guo@canonical.com>,
Borislav Petkov <bp@alien8.de>,
Bjorn Helgaas <bhelgaas@google.com>,
Guowen Shan <gshan@redhat.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
"Guilherme G. Piccoli" <kernel@gpiccoli.net>,
kexec mailing list <kexec@lists.infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
Dan Streetman <ddstreet@canonical.com>,
Vivek Goyal <vgoyal@redhat.com>
Subject: Re: [PATCH 1/3] x86/quirks: Scan all busses for early PCI quirks
Date: Wed, 18 Nov 2020 15:05:16 -0600 [thread overview]
Message-ID: <20201118210516.GA76543@bjorn-Precision-5520> (raw)
In-Reply-To: <CAHD1Q_zS9Hs8mUsm=q0Ei0kQ+y+wQhkroD+M2eCPKo2xLO6hBw@mail.gmail.com>
On Tue, Nov 17, 2020 at 09:04:07AM -0300, Guilherme Piccoli wrote:
> Also, taking here the opportunity to clarify my understanding about
> the limitations of that approach: Bjorn, in our reproducer machine we
> had 3 parents in the PCI tree (as per lspci -t), 0000:00, 0000:ff and
> 0000:80 - are those all under "segment 0" as per your verbiage?
Yes. The "0000" is the PCI segment (or "domain" in the Linux PCI core).
It's common on x86 to have multiple host bridges in segment 0000.
next prev parent reply other threads:[~2020-11-18 21:05 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-18 18:37 [PATCH 1/3] x86/quirks: Scan all busses for early PCI quirks Guilherme G. Piccoli
2018-10-18 18:37 ` [PATCH 2/3] x86/PCI: Export find_cap() to be used in early PCI code Guilherme G. Piccoli
2018-10-18 18:37 ` [PATCH 3/3] x86/quirks: Add parameter to clear MSIs early on boot Guilherme G. Piccoli
2018-10-18 20:08 ` Sinan Kaya
2018-10-18 20:13 ` Guilherme G. Piccoli
2018-10-18 20:30 ` Sinan Kaya
2018-10-22 19:44 ` Guilherme G. Piccoli
2018-10-18 22:15 ` [PATCH 1/3] x86/quirks: Scan all busses for early PCI quirks Bjorn Helgaas
2018-10-22 20:35 ` Guilherme G. Piccoli
2018-10-23 17:03 ` Bjorn Helgaas
2020-11-06 13:14 ` Guilherme G. Piccoli
2020-11-13 16:46 ` Bjorn Helgaas
2020-11-13 23:31 ` Thomas Gleixner
2020-11-13 23:40 ` Thomas Gleixner
2020-11-14 20:39 ` Bjorn Helgaas
2020-11-14 20:58 ` Thomas Gleixner
2020-11-14 21:22 ` Bjorn Helgaas
2020-11-15 14:05 ` Eric W. Biederman
2020-11-15 14:29 ` Eric W. Biederman
2020-11-15 15:11 ` Thomas Gleixner
2020-11-15 17:01 ` Lukas Wunner
2020-11-15 19:18 ` Thomas Gleixner
2020-11-15 20:46 ` Eric W. Biederman
2020-11-16 20:31 ` Guilherme G. Piccoli
2020-11-16 21:45 ` Eric W. Biederman
2020-11-16 21:49 ` Guilherme Piccoli
2020-11-17 0:19 ` Bjorn Helgaas
2020-11-17 1:06 ` Eric W. Biederman
2020-11-17 9:53 ` Thomas Gleixner
2020-11-17 12:19 ` David Woodhouse
2020-11-17 19:34 ` Thomas Gleixner
2020-11-17 22:25 ` Eric W. Biederman
2020-11-17 12:04 ` Guilherme Piccoli
2020-11-18 21:05 ` Bjorn Helgaas [this message]
2020-11-18 22:36 ` Guilherme Piccoli
2020-11-30 20:20 ` Bjorn Helgaas
2020-12-14 18:32 ` Guilherme Piccoli
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