PCI: hv: Fix NUMA node assignment when kernel boots with custom NUMA topology
authorLong Li <longli@microsoft.com>
Thu, 27 Jan 2022 01:43:34 +0000 (17:43 -0800)
committerWei Liu <wei.liu@kernel.org>
Thu, 3 Feb 2022 12:53:01 +0000 (12:53 +0000)
commit3149efcdf2c6314420c418dfc94de53bfd076b1f
treeb15f11eab4905da626764580f90811b0241ea498
parent9ff5549b1d1d3c3a9d71220d44bd246586160f1d
PCI: hv: Fix NUMA node assignment when kernel boots with custom NUMA topology

When kernel boots with a NUMA topology with some NUMA nodes offline, the PCI
driver should only set an online NUMA node on the device. This can happen
during KDUMP where some NUMA nodes are not made online by the KDUMP kernel.

This patch also fixes the case where kernel is booting with "numa=off".

Fixes: 999dd956d838 ("PCI: hv: Add support for protocol 1.3 and support PCI_BUS_RELATIONS2")
Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Purna Pavan Chandra Aekkaladevi <paekkaladevi@microsoft.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Link: https://lore.kernel.org/r/1643247814-15184-1-git-send-email-longli@linuxonhyperv.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
drivers/pci/controller/pci-hyperv.c