This is a note to let you know that I've just added the patch titled
PCI: pci-bridge-emul: Set PCI_STATUS_CAP_LIST for PCIe device
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pci-pci-bridge-emul-set-pci_status_cap_list-for-pcie-device.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 3be9d243b21724d49b65043d4520d688b6040b36 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@xxxxxxxxxx>
Date: Wed, 24 Nov 2021 16:59:44 +0100
Subject: PCI: pci-bridge-emul: Set PCI_STATUS_CAP_LIST for PCIe device
MIME-Version: 1.0
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From: Pali Rohár <pali@xxxxxxxxxx>
commit 3be9d243b21724d49b65043d4520d688b6040b36 upstream.
Since all PCI Express device Functions are required to implement the PCI
Express Capability structure, Capabilities List bit in PCI Status Register
must be hardwired to 1b. Capabilities Pointer register (which is already
set by pci-bride-emul.c driver) is valid only when Capabilities List is set
to 1b.
Link: https://lore.kernel.org/r/20211124155944.1290-7-pali@xxxxxxxxxx
Fixes: 23a5fba4d941 ("PCI: Introduce PCI bridge emulated config space common logic")
Signed-off-by: Pali Rohár <pali@xxxxxxxxxx>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pci/pci-bridge-emul.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/pci/pci-bridge-emul.c
+++ b/drivers/pci/pci-bridge-emul.c
@@ -296,6 +296,7 @@ int pci_bridge_emul_init(struct pci_brid
if (bridge->has_pcie) {
bridge->conf.capabilities_pointer = PCI_CAP_PCIE_START;
+ bridge->conf.status |= cpu_to_le16(PCI_STATUS_CAP_LIST);
bridge->pcie_conf.cap_id = PCI_CAP_ID_EXP;
bridge->pcie_conf.cap |= cpu_to_le16(PCI_EXP_TYPE_ROOT_PORT << 4);
bridge->pcie_cap_regs_behavior =
Patches currently in stable-queue which might be from pali@xxxxxxxxxx are
queue-5.15/pci-pci-bridge-emul-make-expansion-rom-base-address-register-read-only.patch
queue-5.15/pci-pci-bridge-emul-fix-definitions-of-reserved-bits.patch
queue-5.15/pci-pci-bridge-emul-correctly-set-pcie-capabilities.patch
queue-5.15/pci-pci-bridge-emul-properly-mark-reserved-pcie-bits-in-pci-config-space.patch
queue-5.15/pci-pci-bridge-emul-set-pci_status_cap_list-for-pcie-device.patch
queue-5.15/arm-dts-armada-38x-add-generic-compatible-to-uart-no.patch
