From: Jon Derrick <jonathan.derrick@intel.com>
To: Rui Wang <rui.y.wang@intel.com>
Cc: bhelgaas@google.com, tglx@linutronix.de, rjw@rjwysocki.net,
mingo@kernel.org, bp@alien8.de, torvalds@linux-foundation.org,
peterz@infradead.org, helgaas@kernel.org,
linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org,
tony.luck@intel.com, x86@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86/ioapic: Ignore root bridges without a companion ACPI device
Date: Mon, 12 Sep 2016 15:25:38 -0600 [thread overview]
Message-ID: <20160912212537.GA1740@localhost.localdomain> (raw)
In-Reply-To: <1473522046-31329-1-git-send-email-rui.y.wang@intel.com>
On Sat, Sep 10, 2016 at 11:40:45PM +0800, Rui Wang wrote:
> Some PCI root bridges don't have a corresponding ACPI device.
> This can be the case on some old platforms. Don't call acpi_ioapic_add()
> on these bridges because they can't support ioapic hotplug.
Not just old platforms. VMD is a new device which initializes a root port in software without an acpi handle.
What branch is this based on? I can't find the relevant code/commits
next prev parent reply other threads:[~2016-09-12 21:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-10 15:40 [PATCH] x86/ioapic: Ignore root bridges without a companion ACPI device Rui Wang
2016-09-10 17:27 ` Borislav Petkov
2016-09-10 18:34 ` [tip:x86/apic] " tip-bot for Rui Wang
2016-09-12 21:25 ` Jon Derrick [this message]
2016-09-12 21:43 ` [PATCH] " Luck, Tony
2016-09-12 21:46 ` Jon Derrick
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