[Bug 202055] Failed to PCI passthrough SSD with SMI SM2262 controller.

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https://bugzilla.kernel.org/show_bug.cgi?id=202055

--- Comment #22 from Alex Williamson (alex.williamson@xxxxxxxxxx) ---
The delay in comment 20 allows the device to reset when it's already quiesced,
but after the VM makes use of the device I'm finding that it will still trigger
the fault.  I've got another version that follows the path of the Samsung nvme
quirk to test and disable the nvme controller before performing a reset. 
Coupling with the delay, this seems to address both the previously active and
previously idle reset cases.  I'll attach a new patch implementing this for
testing.

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