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From: Nirmal Patel <nirmal.patel@linux.intel.com>
To: <linux-pci@vger.kernel.org>
Cc: Nirmal Patel <nirmal.patel@linux.intel.com>
Subject: [PATCH 0/2] PCI: vmd: IRQ domain assignment to sub devices
Date: Mon,  2 May 2022 01:48:58 -0700	[thread overview]
Message-ID: <20220502084900.7903-1-nirmal.patel@linux.intel.com> (raw)

Make sure VMD assigns proper IRQ domain to the child devices during
device enumeration. 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.

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


             reply	other threads:[~2022-05-02 15:54 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-02  8:48 Nirmal Patel [this message]
2022-05-02  8:48 ` [PATCH 1/2] PCI: vmd: Assign VMD IRQ domain before enumeration Nirmal Patel
2022-05-11  9:10   ` Lorenzo Pieralisi
2022-05-11 16:57     ` Patel, Nirmal
2022-05-02  8:49 ` [PATCH 2/2] PCI: vmd: Revert 2565e5b69c44 ("PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU.") Nirmal Patel

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