From: Nirmal Patel <nirmal.patel@linux.intel.com>
To: <linux-pci@vger.kernel.org>, Nirmal Patel <nirmal.patel@linux.intel.com>
Subject: [PATCH v2 0/2] PCI: vmd: IRQ domain assignment to sub devices
Date: Wed, 11 May 2022 02:57:05 -0700 [thread overview]
Message-ID: <20220511095707.25403-1-nirmal.patel@linux.intel.com> (raw)
Host OS fails to boot and DMAR errors were observed when interrupt
remapping is enabled by intel_iommu because of the fact that VMD child
devices are on different IRQ domain than all other PCI devices.
Make sure VMD assigns proper IRQ domain to the child devices during
device enumeration.
Nirmal Patel (2):
PCI: vmd: Assign VMD IRQ domain before enumeration
PCI: vmd: Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X
remapping if interrupt remapping is enabled by IOMMU.")
drivers/pci/controller/vmd.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--
2.26.2
next reply other threads:[~2022-05-11 17:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-11 9:57 Nirmal Patel [this message]
2022-05-11 9:57 ` [PATCH v2 1/2] PCI: vmd: Assign VMD IRQ domain before enumeration Nirmal Patel
2022-05-11 9:57 ` [PATCH v2 2/2] PCI: vmd: Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU.") Nirmal Patel
2022-05-12 14:55 ` [PATCH v2 0/2] PCI: vmd: IRQ domain assignment to sub devices Lorenzo Pieralisi
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