[PATCH v4 10/11] PCI: liveupdate: Do not disable bus mastering on preserved devices during kexec
Bjorn Helgaas
helgaas at kernel.org
Mon Apr 27 14:08:01 PDT 2026
On Thu, Apr 23, 2026 at 09:23:14PM +0000, David Matlack wrote:
> Do not disable bus mastering on outgoing preserved devices during
> pci_device_shutdown() for kexec.
> +++ b/drivers/pci/liveupdate.c
> @@ -132,6 +132,10 @@
> * * The PCI core inherits ARI Forwarding Enable on all bridges with downstream
> * preserved devices to ensure that all preserved devices on the bridge's
> * secondary bus are addressable after the Live Update.
> + *
> + * * The PCI core does not disable bus mastering on outoing preserved devices
> + * during kexec. This allows preserved devices to issue memory transactions
s/outoing/outgoing/
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