[coreboot-gerrit] Patch merged into coreboot/master: AMD/Mullins: Fix the interrupt routing
gerrit at coreboot.org
gerrit at coreboot.org
Thu Nov 12 09:26:13 CET 2015
the following patch was just integrated into master:
commit 861f920cdfa1f8a322ecd2a56da8c8a9fdfd1155
Author: Zheng Bao <fishbaozi at gmail.com>
Date: Mon Nov 9 20:22:36 2015 +0800
AMD/Mullins: Fix the interrupt routing
The plugged devices on PCIe should use IOAPIC2 instead of standard
IOAPIC1. The entries in IOAPIC2 count from the end of IOAPIC1.
The unchanged code worked because the OS uses MSI instead APIC.
To test that, boot linux with parameter pci=nomsi and see if the devices
like NIC work well as they do without the booting parameter.
run 'cat /proc/interrupts' to see if devices actually use
no-msi.
Change-Id: I5eab28956b7a3fbc7c10447e99d6c11dbe6a1d14
Signed-off-by: Zheng Bao <fishbaozi at gmail.com>
Reviewed-on: http://review.coreboot.org/12363
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki at gmail.com>
See http://review.coreboot.org/12363 for details.
-gerrit
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