PCI: pci-bridge-emul: Properly mark reserved PCIe bits in PCI config space

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Some bits in PCI config space are reserved when device is PCIe. Properly
define behavior of PCI registers for PCIe emulated bridge and ensure that
it would not be possible change these reserved bits.

Link: https://lore.kernel.org/r/20211124155944.1290-3-pali@kernel.org
Fixes: 23a5fba4d9 ("PCI: Introduce PCI bridge emulated config space common logic")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org

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Pali Rohár 2021-11-24 16:59:40 +01:00 • committed by Lorenzo Pieralisi

parent 1c1a3b4d3e

commit 7b067ac63a

1 changed files with 21 additions and 0 deletions

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drivers/pci/pci-bridge-emul.c

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