This will allow us to switch to the new firmware version during shutdown when
the filesystems have been remounted readonly.
Activating manually means we don't have to get the user to shutdown and then
do a fresh power-on, rather than the more usual restart.
This also allows us to write mixed-endian structures and adds tests. As part of
this commit we've also changed the API of something that's not yet been in any
tarball release, so no pitchforks please.
This allows hardware from OEMs to *not* match generic firmware supplied by the
device manufacturer. The idea being, that the OEM will supply firmware that
will actually work on the device.
Based on a patch from Mario Limonciello, many thanks.
Similar to NVME, ATA drives distributed by Dell have special values
that should be used to designate fwupd GUIDs and only run correct
firmware.
When detecting Dell GUIDs remove the standard fwupd GUIDs. "Generic"
firmware targeted to those GUIDs will fail to install.
During download and activation we have to reset the drive to apply the new
firmware. If the kernel gets an unexpected ATA reset then it might panic.
Default to activating the command on the next drive power-up to be safe.
Many thanks to the Dell storage team for the advice.
