Re: [patch] x86_64, irq: check remote IRR bit before migrating level triggered irq

From: Yinghai Lu
Date: Fri May 18 2007 - 14:09:34 EST


On 5/18/07, Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote:
We can solve the problem without doing that, and keeping the same
vector number during migration keeps x86 from scaling.

I mean ioapic level irq couls be limited. new device could use MSI or
HT irq directly and less irq routing problem.

Personally I would prefer to disallow irq migration.
? typo?
For amd platform with different hypertransport chain on different
nodes, irq migration is needed.

YH
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