pci: implement "pci=noaer"

For cases in which CONFIG_PCIEAER=y (such as distro kernels), allow users
to disable PCIE Advanced Error Reporting by using "pci=noaer" on the
kernel command line.

This can be used to work around hardware or (kernel) software problems.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index a57c1f216b21..3f0173f45019 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -68,6 +68,7 @@ parameter is applicable:
         PARIDE  The ParIDE (parallel port IDE) subsystem is enabled.
         PARISC  The PA-RISC architecture is enabled.
         PCI     PCI bus support is enabled.
+        PCIE    PCI Express support is enabled.
         PCMCIA  The PCMCIA subsystem is enabled.
         PNP     Plug & Play support is enabled.
         PPC     PowerPC architecture is enabled.
@@ -1270,6 +1271,9 @@ and is between 256 and 4096 characters. It is defined in the file
                                 Mechanism 1.
                 conf2           [X86-32] Force use of PCI Configuration
                                 Mechanism 2.
+                noaer           [PCIE] If the PCIEAER kernel config parameter is
+                                enabled, this kernel boot option can be used to
+                                disable the use of PCIE advanced error reporting.
                 nommconf        [X86-32,X86_64] Disable use of MMCONFIG for PCI
                                 Configuration
                 nomsi           [MSI] If the PCI_MSI kernel config parameter is