Re: [PATCH v12 5/5] vfio-pci/zdev: Add VFIO FMB device features
From: Matthew Rosato
Date: Tue Nov 03 2026 - 17:46:15 EST
On 11/3/26 4:08 PM, Niklas Schnelle wrote:
> On Tue, 2026-11-03 at 10:01 -0500, Omar Elghoul wrote:
>> Introduce new VFIO features for zPCI devices to provide FMB passthrough to
>> userspace.
>>
>> Allow the user to enable or disable the FMB using the SET-only feature
>> VFIO_DEVICE_FEATURE_ZPCI_FMB_ENABLE. Likewise allow the user to read the
>> latest FMB using the GET-only feature VFIO_DEVICE_FEATURE_ZPCI_FMB_READ
>> in the case when the FMB is enabled.
>>
>> Signed-off-by: Omar Elghoul <oelghoul@xxxxxxxxxxxxx>
>> Acked-by: Alex Williamson <alex@xxxxxxxxxxx>
Reviewed-by: Matthew Rosato <mjrosato@xxxxxxxxxxxxx>